Themed collection Analytical Methods HOT Articles 2023

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Critical Review

Advances in colorimetric aptasensors for heavy metal ion detection utilizing nanomaterials: a comprehensive review

Heavy metal ion contamination poses significant environmental and health risks, necessitating rapid and efficient detection methods.

Graphical abstract: Advances in colorimetric aptasensors for heavy metal ion detection utilizing nanomaterials: a comprehensive review
From the themed collection: Analytical Methods HOT Articles 2023
Critical Review

Recent advances in small-molecule fluorescent probes with the function of targeting cancer receptors

This review summarizes the photophysical properties of fluorescent probes with the function of targeting cancer receptors and their response mechanisms to biomarkers, as well as their applications in cancer-related biological imaging, and looks forward to the future development direction.

Graphical abstract: Recent advances in small-molecule fluorescent probes with the function of targeting cancer receptors
From the themed collection: Analytical Methods HOT Articles 2023
Critical Review

Modern analytical and bioanalytical technologies and concepts for smart and precision farming

Unpredictable natural disasters, disease outbreaks, climate change, pollution, and war constantly threaten food crop production.

Graphical abstract: Modern analytical and bioanalytical technologies and concepts for smart and precision farming
From the themed collection: Analytical Methods HOT Articles 2023
Communication

Mass filtering combined with photochemical derivatization enables high throughput mass spectrometric analysis of unsaturated phosphatidylcholine isomers

The accurate qualitative and quantitative analysis of PCs and isomers facilitates the discovery of biomarkers for exercise rehabilitation of patients with myocardial infarction.

Graphical abstract: Mass filtering combined with photochemical derivatization enables high throughput mass spectrometric analysis of unsaturated phosphatidylcholine isomers
From the themed collection: Analytical Methods HOT Articles 2023
Communication

Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites

Polyurea-magnetic hierarchical porous composites show excellent physisorption performance for anionic metabolites in complex matrices with simple preparation, rapid separation, superior stability, and recyclability.

Graphical abstract: Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites
From the themed collection: Analytical Methods HOT Articles 2023
Communication

A ratiometric fluorescent dye for detection of Lys and Arg and its bioimaging in live cells and zebrafish larvae

Dimethyl indole Dye IDE was applied to the detection of Lys and Arg level in living cells and zebrafish larvae successfully, and it will be a useful fluorescence indicator for pH changes by Lys and Arg.

Graphical abstract: A ratiometric fluorescent dye for detection of Lys and Arg and its bioimaging in live cells and zebrafish larvae
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Direct detection of dithiocarbamate fungicides by SALDI/MS using porous TiC ceramic powder as a substrate

Direct detection of dithiocarbamate fungicides (DTCs) has been achieved by SALDI/MS using porous titanium carbide (TiC) ceramic powder as a substrate.

Graphical abstract: Direct detection of dithiocarbamate fungicides by SALDI/MS using porous TiC ceramic powder as a substrate
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Metabolomic approaches to explore chemodiversity in seeds of guaraná (Paullinia cupana) using UPLC-QTOF-MSE and NMR analysis

Non-targeted and targeted metabolomic approach method for determination of metabolic profile and chemical composition of guaraná seeds.

Graphical abstract: Metabolomic approaches to explore chemodiversity in seeds of guaraná (Paullinia cupana) using UPLC-QTOF-MSE and NMR analysis
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

Scanning ion conductance microscopy revealed cisplatin-induced morphological changes related to apoptosis in single adenocarcinoma cells

SICM is employed as a non-invasive method for mapping the 3D topography of single A549 cells treated with an anticancer drug, to provide information about changes in cell width, height and volume, and monitor membrane blebbing during apoptosis.

Graphical abstract: Scanning ion conductance microscopy revealed cisplatin-induced morphological changes related to apoptosis in single adenocarcinoma cells
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Self-assembly of Au nanocubes for ultrasensitive detection of Alzheimer's disease biomarkers by SERS

Schematic illustration of SERS detection of AD biomarkers using self-assembly Au nanocubes.

Graphical abstract: Self-assembly of Au nanocubes for ultrasensitive detection of Alzheimer's disease biomarkers by SERS
From the themed collection: Analytical Methods HOT Articles 2023
Paper

CsPbBr3 perovskite quantum dot decorated ZIF-8 MOF: a selective dual recognition fluorometric visual probe for 4-nitroaniline and rhodamine blue

Stable and fluorescent ZIF-8 confined CsPbBr3 perovskite were synthesized to act as a dual functional luminescent probe for the sensing of 4-nitroaniline and rhodamine blue dye. The paper sensor shows visual recognition ability of the analytes.

Graphical abstract: CsPbBr3 perovskite quantum dot decorated ZIF-8 MOF: a selective dual recognition fluorometric visual probe for 4-nitroaniline and rhodamine blue
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A homogeneous label-free electrochemical aptasensor based on an omega-like DNA nanostructure for progesterone detection

A novel homogeneous label-free electrochemical aptamer sensor for the detection of progesterone was prepared by combining the omega-like DNA nanostructure, with an isothermal cycling amplification strategy based on the exonuclease III.

Graphical abstract: A homogeneous label-free electrochemical aptasensor based on an omega-like DNA nanostructure for progesterone detection
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

Molecular beacon decorated silver nanowires for quantitative miRNA detection by a SERS approach

To overcome the issues connected to the need of multiple steps in amplification methods for SERS biosensors, we propose a strategy for microRNA detection based on a signal-off mechanism of a labelled molecular beacon immobilized on the SERS substrate.

Graphical abstract: Molecular beacon decorated silver nanowires for quantitative miRNA detection by a SERS approach
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Determination of vitamin D metabolites in various biological samples through an improved chemical derivatization assisted liquid chromatography-tandem mass spectrometry approach

A PTAD derivatization assisted LC-MS/MS method for the simultaneous determination of seven vitamin D metabolites was established, enabling the quantification of the vitamin D metabolism pathway in various biological samples.

Graphical abstract: Determination of vitamin D metabolites in various biological samples through an improved chemical derivatization assisted liquid chromatography-tandem mass spectrometry approach
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Discrimination of cis-diol-containing molecules using fluorescent boronate affinity probes by principal component analysis

By integrating phenylboronic acid-functionalized fluorescent probe with principal component analysis, it is feasible and easy to discriminate different types of cis-diol containing molecules including nucleosides, sugars and glycoproteins.

Graphical abstract: Discrimination of cis-diol-containing molecules using fluorescent boronate affinity probes by principal component analysis
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Highly sensitive determination of L-glutamic acid in pig serum with an enzyme-free molecularly imprinted polymer on a carbon-nanotube modified electrode

An enzyme-free molecularly imprinted sensor with MWCNTs was developed through electrochemical polymerization using L-Glu as a template and 4,6-diaminoresorcinol as a monomer, providing a simple and accurate way for assay of L-Glu in life science.

Graphical abstract: Highly sensitive determination of l-glutamic acid in pig serum with an enzyme-free molecularly imprinted polymer on a carbon-nanotube modified electrode
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Development of highly selective and sensitive molecularly imprinted polymer-based electrochemical sensors for tolvaptan assay in tablets and serum

In this work we report a comparatives study on the design of MIP-based electrochemical sensors for the determination of TOL by PP and TP methods.

Graphical abstract: Development of highly selective and sensitive molecularly imprinted polymer-based electrochemical sensors for tolvaptan assay in tablets and serum
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A dihydro-benzo[4,5]imidazo[1,2-c]quinazoline-based probe with aggregation-induced ratiometric emission for the ratiometric fluorescent detection of peroxynitrite in living cells and zebrafish

A dihydro-benzo[4,5]imidazo[1,2-c]quinazoline-based probe with aggregation-induced ratiometric emission was developed for the ratiometric fluorescent detection of ONOO, which was applied for imaging ONOO in HeLa cells and zebrafish.

Graphical abstract: A dihydro-benzo[4,5]imidazo[1,2-c]quinazoline-based probe with aggregation-induced ratiometric emission for the ratiometric fluorescent detection of peroxynitrite in living cells and zebrafish
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Nitrocellulose membranes in situ grown with Prussian blue nanoparticles as stable nanozyme pads for colorimetric detection of dopamine

Nitrocellulose (NC) membranes were exploited as synthesis hosts of Prussian blue nanoparticles (PB NPs) to develop a new type of 3D porous peroxidase-mimicking nanozyme pad for colorimetric detection of dopamine (DA) in urine.

Graphical abstract: Nitrocellulose membranes in situ grown with Prussian blue nanoparticles as stable nanozyme pads for colorimetric detection of dopamine
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A highly efficient and portable laser-scribed graphene-based electrochemical system for forensic-oriented determination of acepromazine

Acepromazine (ACP) is a tranquilizer veterinary medication that has emerged as a drug of abuse and is associated with drug-facilitated sexual assaults. Therefore, portable and reliable methods for its detection are of utmost importance.

Graphical abstract: A highly efficient and portable laser-scribed graphene-based electrochemical system for forensic-oriented determination of acepromazine
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Rapid diagnosis of acute myocardial infarction based on reverse transcription-accelerated strand exchange amplification of miR-208a

A novel reverse transcription-accelerated strand exchange amplification (RT-ASEA) method to detect the early biomarker miR-208a of AMI in 15 minutes was developed with high sensitivity, strong specificity and a wide linear range.

Graphical abstract: Rapid diagnosis of acute myocardial infarction based on reverse transcription-accelerated strand exchange amplification of miR-208a
Paper

Electrochemical detection of glycoproteins using boronic acid-modified metal–organic frameworks as dual-functional signal reporters

Dual-functional metal–organic frameworks were prepared and used for glycoprotein detection based on the boronate-affinity interactions.

Graphical abstract: Electrochemical detection of glycoproteins using boronic acid-modified metal–organic frameworks as dual-functional signal reporters
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A portable test strip fabricated of luminescent lanthanide-functionalized metal–organic frameworks for rapid and visual detection of tetracycline antibiotics

A facile visualization method for the tetracycline antibiotics (TCs) detection was developed not only in the laboratory but also in a point-of-care setting using Ag+/Tb3+@UiO-66-(COOH)2 as an optical probe.

Graphical abstract: A portable test strip fabricated of luminescent lanthanide-functionalized metal–organic frameworks for rapid and visual detection of tetracycline antibiotics
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Biosensor model based on single hairpin structure for highly sensitive detection of multiple targets

Nowadays, due to the genetic information carried by nucleic acids, they can serve as a biomarker for the early diagnosis of diseases, including tumors and cardiovascular disease, among others, making genetic testing a hotspot of biomedicine.

Graphical abstract: Biosensor model based on single hairpin structure for highly sensitive detection of multiple targets
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Effects of targeted lung cancer drugs on cardiomyocytes studied by atomic force microscopy

The atomic force microscopy was used to analyze the physical properties of cardiomyocytes under the actions of EGFR-TKIs, which provides a new method for screening drugs and exploring the principle of cancer treatment at the cellular level.

Graphical abstract: Effects of targeted lung cancer drugs on cardiomyocytes studied by atomic force microscopy
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Designing of a unique bioreceptor and fabrication of an efficient genosensing platform for neonatal sepsis detection

Gene-based DNA oligonucleotides are combined with graphene oxide for electrochemical genosensing of neonatal sepsis. The genosensor shows improved, specific and rapid performance and opens a window to developing a miniaturized point-of-care device for neonatal sepsis detection.

Graphical abstract: Designing of a unique bioreceptor and fabrication of an efficient genosensing platform for neonatal sepsis detection
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Extraction and determination of aflatoxin B1 in cereal samples using pH-switchable hydrophobic deep eutectic solvents followed by HPLC-FL analysis

A liquid-phase microextraction procedure based on pH-switchable hydrophobic deep eutectic solvents and HPLC-FL analysis. The method was used for the quantitative study of aflatoxin B1 in eight widely consumed cereal samples.

Graphical abstract: Extraction and determination of aflatoxin B1 in cereal samples using pH-switchable hydrophobic deep eutectic solvents followed by HPLC-FL analysis
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

On the use of Carbograph 5TD as an adsorbent for sampling VVOCs: validation of an analytical method

This paper reports the usability of the adsorbent Carbograph 5TD for the analysis of VVOCs in indoor air. It includes the whole validation chain from the determination of recovery, LOD/LOQ and robustness to measurement uncertainty.

Graphical abstract: On the use of Carbograph 5TD as an adsorbent for sampling VVOCs: validation of an analytical method
From the themed collection: Analytical Methods HOT Articles 2023
Paper

An outlier detection algorithm based on segmentation and pruning of competitive network for glioma identification using Raman spectroscopy

A label-free SPCN algorithm detects glioma using Raman spectroscopy. It segments and prunes competitive networks, eliminating the need for outlier threshold estimation or data distribution density. Effective for non-compact manifold data sets.

Graphical abstract: An outlier detection algorithm based on segmentation and pruning of competitive network for glioma identification using Raman spectroscopy
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A simple and rapid strategy for monitoring vancomycin concentration in serum using a multicolor immunosensor based on the ratio of gold nanobipyramids and a product of cetyltrimethylammonium bromide-blue oxide of 3,3′,5,5′-tetramethylbenzidine interaction

A rapid and simple multicolor immunosensor was developed for monitoring of vancomycin concentration, and the immunosensor presented good color stability, user friendliness and portability.

Graphical abstract: A simple and rapid strategy for monitoring vancomycin concentration in serum using a multicolor immunosensor based on the ratio of gold nanobipyramids and a product of cetyltrimethylammonium bromide-blue oxide of 3,3′,5,5′-tetramethylbenzidine interaction
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Introduction of a multilayered fluorescent nanofilm into lateral flow immunoassay for ultrasensitive detection of Salmonella typhimurium in food samples

An ultrasensitive LFIA based on multilayered fluorescent nanofilm-guided signal amplification was developed for the rapid and quantitative determination of Salmonella typhimurium in complex food samples.

Graphical abstract: Introduction of a multilayered fluorescent nanofilm into lateral flow immunoassay for ultrasensitive detection of Salmonella typhimurium in food samples
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Supramolecular recognition enhanced electrochemical sensing: β-cyclodextrin and Pd nanoparticle co-decorated 3D reduced graphene oxide nanocomposite-modified glassy carbon electrode for the quantification of ractopamine

A novel supramolecular recognition-enhanced electrochemical sensing platform based on a 3D-rGO/Pd/β-CD-modified glassy carbon electrode (GCE) is proposed for application in the electrochemical detection of RAC.

Graphical abstract: Supramolecular recognition enhanced electrochemical sensing: β-cyclodextrin and Pd nanoparticle co-decorated 3D reduced graphene oxide nanocomposite-modified glassy carbon electrode for the quantification of ractopamine
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

Simultaneous determination of intracellular reduced and oxidized glutathiones by the König reaction

The König reaction is newly applied to the simultaneous determination of reduced and oxidized glutathione.

Graphical abstract: Simultaneous determination of intracellular reduced and oxidized glutathiones by the König reaction
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Serum metabolomic analysis revealed potential metabolite biomarkers for diabetes mellitus with coronary heart disease

IC-MS based metabolomic analysis identified signature metabolites, which may serve as biomarkers for the clinical detection of T2DM or CHD–T2DM and for the prediction of developing CHD in T2DM patients.

Graphical abstract: Serum metabolomic analysis revealed potential metabolite biomarkers for diabetes mellitus with coronary heart disease
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A facile ratiometric near-infrared fluorescent probe using conjugated 1,8-naphthalimide and dicyanoisophorone with a vinylene linker for detection and bioimaging of hypochlorite

A new ratiometric near-infrared fluorescent probe 3 for detecting ClO using conjugated 1,8-naphthalimide and dicyanoisophorone with a vinylene linker was reported.

Graphical abstract: A facile ratiometric near-infrared fluorescent probe using conjugated 1,8-naphthalimide and dicyanoisophorone with a vinylene linker for detection and bioimaging of hypochlorite
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Biosensors based on DNA-functionalized CdTe quantum dots for the enhanced electrochemical detection of human-IgG

Strategy for detecting human IgG using DNA-functionalized CdTe quantum dots as biosensors.

Graphical abstract: Biosensors based on DNA-functionalized CdTe quantum dots for the enhanced electrochemical detection of human-IgG
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Stability and spectroscopic analysis of CsPbBr3 quantum dots modified with 2-n-octyl-1-dodecanol

This manuscript utilizes 2-n-octyl-1-dodecanol as a surface ligand to passivate surface defects of perovskite quantum dots, ultimately improving the performance and stability of the perovskite quantum dots.

Graphical abstract: Stability and spectroscopic analysis of CsPbBr3 quantum dots modified with 2-n-octyl-1-dodecanol
From the themed collection: Analytical Methods HOT Articles 2023
Paper

In vivo bioimaging and detection of endogenous hypochlorous acid in lysosome using a near-infrared fluorescent probe

The phagocyte's lysosome is the primary site of hypochlorous acid (HOCl) synthesis, and HOCl can be used as a biomarker for osteoarthritis diagnosis and treatment evaluation.

Graphical abstract: In vivo bioimaging and detection of endogenous hypochlorous acid in lysosome using a near-infrared fluorescent probe
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A cell-surface-anchored DNA probe coupled with hybridization chain reaction enzyme-free dual signal amplification for sensitive electrochemical detection of the cellular microenvironment

A novel electrochemical sensing platform based on a DNAzyme anchored cell membrane and hybridization chain reaction enzyme-free dual signal amplification strategy was developed for sensitive metal ion detection in the cell microenvironment.

Graphical abstract: A cell-surface-anchored DNA probe coupled with hybridization chain reaction enzyme-free dual signal amplification for sensitive electrochemical detection of the cellular microenvironment
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Integration of metabolomics and network pharmacology for enhancing mechanism understanding and medication combination recommendation for diabetes mellitus and diabetic nephropathy

With the increasing prevalence of diabetes mellitus (DM) and diabetic nephropathy (DN), effective treatment is particularly important for the recovery of patients.

Graphical abstract: Integration of metabolomics and network pharmacology for enhancing mechanism understanding and medication combination recommendation for diabetes mellitus and diabetic nephropathy
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Electrochemical sensing of methotrexate in the presence of folic acid using PAMAM dendrimer-functionalized multiwalled carbon nanotube-modified electrode

This work presents a novel electrochemical sensor based on the third-generation poly(amidoamine) dendrimer (G3 PAMAM)-functionalized multiwalled carbon nanotube-modified screen-printed graphite electrode (SPGE) for the simple and sensitive detection of methotrexate.

Graphical abstract: Electrochemical sensing of methotrexate in the presence of folic acid using PAMAM dendrimer-functionalized multiwalled carbon nanotube-modified electrode
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A fluorescent probe based on an enhanced ICT effect for Hg2+ detection and cell imaging

The mercury ion (Hg2+) has hindered society to some extent due to its high biological toxicity, and a rapid method for Hg2+ detection is urgently needed.

Graphical abstract: A fluorescent probe based on an enhanced ICT effect for Hg2+ detection and cell imaging
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Quantitative SERS detection of multiple breast cancer miRNAs based on duplex specific nuclease-mediated signal amplification

Simultaneous and ultrasensitive detection of multiple microRNA (miRNA) biomarkers is an essential precondition for early cancer diagnosis and treatment.

Graphical abstract: Quantitative SERS detection of multiple breast cancer miRNAs based on duplex specific nuclease-mediated signal amplification
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

Advantages of using biologically generated 13C-labelled multiple internal standards for stable isotope-assisted LC-MS-based lipidomics

An in vivo multiple labelling strategy using P. pastoris to generate 300 + 13C-labelled internal standards was shown to significantly reduce technical variations introduced in typical human lipidomics analyses using >100 samples and >70 h run time.

Graphical abstract: Advantages of using biologically generated 13C-labelled multiple internal standards for stable isotope-assisted LC-MS-based lipidomics
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Paper microzone assay embedded on a 3D printed support for colorimetric quantification of proteins in different biological and food samples

We show an inexpensive and reliable approach to extend the areas of application of paper-based analytical devices for protein quantification.

Graphical abstract: Paper microzone assay embedded on a 3D printed support for colorimetric quantification of proteins in different biological and food samples
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Real-time monitoring of the contractile properties of H9C2 cardiomyocytes by double resonator piezoelectric cytometry

Here we describe the double resonator piezoelectric cytometry to simultaneously measure the H9C2 cardiomyocytes’ generated force and viscoelasticity towards the goal of studying the systolic and diastolic function of the cardiovascular system.

Graphical abstract: Real-time monitoring of the contractile properties of H9C2 cardiomyocytes by double resonator piezoelectric cytometry
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Structural identification of in vitro metabolites for 23-nordeoxycholic acid by structural analogue matching

23-Nordeoxycholic acid was deployed to probe metabolism pathways of endogenous bile acids, and metabolite identification was achieved by applying the rule that C23–CH2 defect quantitatively modifies both MS2 spectrum and retention time features.

Graphical abstract: Structural identification of in vitro metabolites for 23-nordeoxycholic acid by structural analogue matching
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Rational design of a functionalized metal–organic framework for ratiometric fluorimetric sensing of Hg2+ in environmental water

An arylboronic acid with the capability of Hg2+ recognition response was coordinated to Eu-MOF to construct a novel target-responsive dual-emission fluorescence nanoprobe for the ratiometric sensing detection of Hg2+ in environmental water.

Graphical abstract: Rational design of a functionalized metal–organic framework for ratiometric fluorimetric sensing of Hg2+ in environmental water
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A sensitive enzyme-free electrochemical sensor based on a rod-shaped bimetallic MOF anchored on graphene oxide nanosheets for determination of glucose in huangshui

Illustration of the fabrication of NiCo-MOF/GO and its application in glucose determination.

Graphical abstract: A sensitive enzyme-free electrochemical sensor based on a rod-shaped bimetallic MOF anchored on graphene oxide nanosheets for determination of glucose in huangshui
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Lipidest: a lipid profile screening test under extreme point of care settings using a portable spinning disc and an office scanner

We present a low-cost and portable point-of-care lipid profile measurement device based on centrifugal microfluidics principles. We validate our device with venous and capillary bloods.

Graphical abstract: Lipidest: a lipid profile screening test under extreme point of care settings using a portable spinning disc and an office scanner
From the themed collection: Analytical Methods HOT Articles 2023
Paper

The electrochemical quantitation method for sugammadex via a molecularly imprinted polymer-based sensor

Sugammadex (SUG) is a synthetically modified γ-cyclodextrin derivative used in hospitals after surgeries to reverse the neuromuscular blockade induced by rocuronium or vecuronium.

Graphical abstract: The electrochemical quantitation method for sugammadex via a molecularly imprinted polymer-based sensor
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A DNA polymerase-powered self-propelled DNA walking strategy for one-step, amplified and dual-signal electrochemical target detection

A DNA polymerase-powered self-propelled DNA walking strategy is proposed for dual-signal, amplified electrochemical detection of nucleic acids.

Graphical abstract: A DNA polymerase-powered self-propelled DNA walking strategy for one-step, amplified and dual-signal electrochemical target detection
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Rapid detection of urine chloride enabled by ion exchange in hydrophilic lead halide perovskite nanocrystals

Colloidal GA-capped PNC ethanol solution shows a continuous PL shift once aqueous Cl with different concentrations is added. This fluorescent sensor shows a wide linear detection range (2–200 mM) of Cl, short response time (∼1 s), and low limit of detection (1.82 mM).

Graphical abstract: Rapid detection of urine chloride enabled by ion exchange in hydrophilic lead halide perovskite nanocrystals
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Machine learning methods for the detection of explosives, drugs and precursor chemicals gathered using a colorimetric sniffer sensor

The detection of explosives, drugs and precursor chemicals from data derived using colorimetric sensing experiments can be done effectively using machine learning methods.

Graphical abstract: Machine learning methods for the detection of explosives, drugs and precursor chemicals gathered using a colorimetric sniffer sensor
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Development and evaluation of RPA-NFO-LFT and RPA-Cas12a-LFT systems for the detection of Candida albicans

Recently, the growing number of medical interventions has led to the risk of invasive candidiasis.

Graphical abstract: Development and evaluation of RPA-NFO-LFT and RPA-Cas12a-LFT systems for the detection of Candida albicans
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Two Fe(III)/Eu(III) Salophen complex-based optical sensors for determination of organophosphorus pesticide monocrotophos

Two Fe(III)/Eu(III) Salophen complex-based optical sensors for determination of organophosphorus pesticide monocrotophos in camellia oil and tap water.

Graphical abstract: Two Fe(iii)/Eu(iii) Salophen complex-based optical sensors for determination of organophosphorus pesticide monocrotophos
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Real-time monitoring of atmospheric ammonia based on modifier-enhanced vacuum ultraviolet photoionization ion mobility spectrometry

Butanone-enhanced vacuum ultraviolet photoionization ion mobility spectrometry provides a new method for monitoring the spatial distribution of atmospheric ammonia and supporting the air quality assessment.

Graphical abstract: Real-time monitoring of atmospheric ammonia based on modifier-enhanced vacuum ultraviolet photoionization ion mobility spectrometry
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A ratiometric electrochemical sensor for detecting lead in fish based on the synergy of semi-complementary aptamer pairs and Ag nanowires@zeolitic imidazolate framework-8

This sensor uses IFc as the conformation change signals and IMB as the internal reference signal. AgNWs@ZIF-8 is used to generate an internal reference signal. The sensor shows a range of 20 nM to 9 μM with a detection limit of 10 nM (S/N = 3).

Graphical abstract: A ratiometric electrochemical sensor for detecting lead in fish based on the synergy of semi-complementary aptamer pairs and Ag nanowires@zeolitic imidazolate framework-8
From the themed collection: Analytical Methods HOT Articles 2023
Paper

On-line monitoring of a recirculating-flow fluorescent capillary system for exploring the interaction mechanism of carbon dots/metal ions

The interaction mechanism of CDs with metal ions was explored by using fluorescence kinetics.

Graphical abstract: On-line monitoring of a recirculating-flow fluorescent capillary system for exploring the interaction mechanism of carbon dots/metal ions
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Determination of sugar content in honey using LC-Raman and programmable pump-Raman methods

LC-Raman spectrometry, which is enabled with the aid of a vertical flow method, is applied to an analysis of sugar contents in a honey sample. Experimental apparatus, data analysis method, and error estimation are discussed.

Graphical abstract: Determination of sugar content in honey using LC-Raman and programmable pump-Raman methods
From the themed collection: Analytical Methods HOT Articles 2023
Paper

A highly sensitive and selective detection of 2,4,6-trinitrotoluene (TNT) using a peptide-functionalized silicon nanowire array sensor

A peptide-based silicon nanowire array sensor for the specific detection of TNT was developed, and the effect of the biointerfacing linker was investigated.

Graphical abstract: A highly sensitive and selective detection of 2,4,6-trinitrotoluene (TNT) using a peptide-functionalized silicon nanowire array sensor
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Solvent-assisted dispersive micro-solid phase extraction of bisphenols using iron(III) thenoyltrifluoroacetonate complex (Fe(TTA)3) as a new nanostructured sorbent: a proof of concept

Iron(III) thenoyltrifluoroacetonate (Fe(TTA))3 was used as a mobile-phase soluble and nanostructured sorbent for solvent-assisted dispersive solid phase extraction for the enrichment of bisphenols from surface waters prior to HPLC analysis.

Graphical abstract: Solvent-assisted dispersive micro-solid phase extraction of bisphenols using iron(iii) thenoyltrifluoroacetonate complex (Fe(TTA)3) as a new nanostructured sorbent: a proof of concept
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

Thermal desorption gas chromatography-mass spectrometry for investigating the thermal degradation of polyurethanes

TD GC-MS can be used as an additional tool for determining polyurethane degradation products, closing the low-molecular mass gap.

Graphical abstract: Thermal desorption gas chromatography-mass spectrometry for investigating the thermal degradation of polyurethanes
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

A green methodology for the determination of cocaine in camouflaged samples

The procedure developed, based on an ultrasound probe assisted extraction followed by DFATR-MIR analysis, offers a fast, simple and efficient way for the determination of cocaine camouflaged in different types of solid samples.

Graphical abstract: A green methodology for the determination of cocaine in camouflaged samples
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Ratiometric detection of Cu2+ in water and drinks using Tb(III)-functionalized UiO-66-type metal–organic frameworks

A ratiometric fluorescent probe for Cu2+ based on Tb(III)-functionalized UiO-66-type MOFs has been synthesized via a facile post-synthetic modification method by employing mixed linkers containing terephthalic acid and 2,6-pyridinedicarboxylic acid.

Graphical abstract: Ratiometric detection of Cu2+ in water and drinks using Tb(iii)-functionalized UiO-66-type metal–organic frameworks
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Data augmentation method based on the Gaussian kernel density for glioma diagnosis with Raman spectroscopy

In this study, a data augmentation algorithm GKIM based on the Gaussian kernel density is proposed for the data augmentation of normal tissue spectra. It can effectively solve the class imbalance problem.

Graphical abstract: Data augmentation method based on the Gaussian kernel density for glioma diagnosis with Raman spectroscopy
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

Fast and simple analysis of the content of Zn, Mg, Ca, Na, and K in selected beverages widely consumed by athletes by flowing liquid cathode atmospheric pressure glow discharge optical emission spectrometry

A novel atmospheric pressure glow discharge (APGD) microplasma system was applied for the determination of Zn, Mg, Ca, Na, and K in selected beverages by optical emission spectrometry (OES), with a simplified sample preparation procedure.

Graphical abstract: Fast and simple analysis of the content of Zn, Mg, Ca, Na, and K in selected beverages widely consumed by athletes by flowing liquid cathode atmospheric pressure glow discharge optical emission spectrometry
From the themed collection: Analytical Methods HOT Articles 2023
Paper

The fabrication of N-doped carbon dots by methionine and their utility in sensing Cu2+ in real water

The fabrication and sensing process of Met-CDs.

Graphical abstract: The fabrication of N-doped carbon dots by methionine and their utility in sensing Cu2+ in real water
From the themed collection: Analytical Methods HOT Articles 2023
Open Access Paper

Exploration of utility of combined optical photothermal infrared and Raman imaging for investigating the chemical composition of microcalcifications in breast cancer

We aim to develop a protocol for efficiently analysing breast microcalcifications and their microenvironment in detail by combining O-PTIR and Raman spectroscopy at the same time, the same location and the same high resolution (0.5 μm).

Graphical abstract: Exploration of utility of combined optical photothermal infrared and Raman imaging for investigating the chemical composition of microcalcifications in breast cancer
From the themed collection: Analytical Methods HOT Articles 2023
Paper

Electrostatic assemblies of molecularly imprinted polymers on the surface of electrospun nanofiber membranes for the point-of-care detection of thiodiglycol, a sulfur mustard poisoning metabolic marker

In this study, a new method for the point-of-care testing of thiodiglycol (TDG) using molecularly imprinted polymer (MIP)-coated electrospun nanofiber membranes is reported.

Graphical abstract: Electrostatic assemblies of molecularly imprinted polymers on the surface of electrospun nanofiber membranes for the point-of-care detection of thiodiglycol, a sulfur mustard poisoning metabolic marker
From the themed collection: Analytical Methods HOT Articles 2023
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About this collection

This themed collection features articles published in Analytical Methods marked as HOT by the handling editor or as recommended by referees. Congratulations to all the authors whose articles are featured.

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