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Themed collection Analytical Methods Recent HOT articles

175 items - Showing page 1 of 3
Communication

A fluorescent probe for the specific detection of cysteine in human serum samples

A turn-on fluorescent probe for cysteine with high selectivity was designed and synthetized. The probe can be used for “naked-eye” detection of Cys with an obvious color change from yellow to colorless. The probe could be applied for Cys detection in real human serum.

Graphical abstract: A fluorescent probe for the specific detection of cysteine in human serum samples
From the themed collection: Analytical Methods Recent HOT articles
Communication

A deep-red emission fluorescent probe for detection of viscosity in living cells and mice

A deep-red emission fluorescent probe HY for detecting viscosity in living systems was developed. The probe exhibited ideal properties including good selectivity, high stability and low cytotoxicity. Importantly, the probe HY has been successfully utilized for monitoring viscosity variations in cells and living mice.

Graphical abstract: A deep-red emission fluorescent probe for detection of viscosity in living cells and mice
From the themed collection: Analytical Methods Recent HOT articles
Communication

Monitoring the trans-membrane transport of single fluorescent silicon nanoparticles based on the force tracing technique

Based on the force tracing technique, the dynamic trans-membrane transport process of single SiNPs in living cells was monitored.

Graphical abstract: Monitoring the trans-membrane transport of single fluorescent silicon nanoparticles based on the force tracing technique
From the themed collection: Analytical Methods Recent HOT articles
Communication

Glycerophospholipids and sphingolipids correlate with poor prognostic genotypes of human papillomavirus in cervical cancer: global lipidomics analysis

Human papillomavirus (HPV), an important causative factor for cervical cancer, alters lipid metabolism.

Graphical abstract: Glycerophospholipids and sphingolipids correlate with poor prognostic genotypes of human papillomavirus in cervical cancer: global lipidomics analysis
From the themed collection: Analytical Methods Recent HOT articles
Communication

A non-reductive electrochemical sensor for ultrasensitive detection of pM-level TNT

Most of the current electrochemical sensors for the detection of nitroaromatic explosives directly exploit the reduction of nitro groups at the electrode.

Graphical abstract: A non-reductive electrochemical sensor for ultrasensitive detection of pM-level TNT
From the themed collection: Analytical Methods Recent HOT articles
Communication

Selective turn-on detection of low levels of cysteine and homocysteine based on fluorescent hydroxyapatite nanoparticles

Fluorescence assay of low levels of biothiols, such as cysteine and homocysteine, based on hydroxyapatite nanoparticles is reported.

Graphical abstract: Selective turn-on detection of low levels of cysteine and homocysteine based on fluorescent hydroxyapatite nanoparticles
From the themed collection: Analytical Methods Recent HOT articles
Communication

Label-free colorimetric aptasensor for highly sensitive and selective detection of proteins by using PNA/DNA hybrids and a cyanine dye

A label-free colorimetric aptasensor that uses PNA/DNA hybrids and a cyanine dye (DiSC2(5)) was developed for highly sensitive and selective detection of proteins in aqueous solution.

Graphical abstract: Label-free colorimetric aptasensor for highly sensitive and selective detection of proteins by using PNA/DNA hybrids and a cyanine dye
From the themed collection: Analytical Methods Recent HOT articles
Open Access Communication

Measuring elasticity of wet cellulose fibres with AFM using indentation and a linearized Hertz model

The mechanical properties of different pulp fibres in liquid were measured using an atomic force microscope.

Graphical abstract: Measuring elasticity of wet cellulose fibres with AFM using indentation and a linearized Hertz model
Communication

One-step detection of hexokinase activity using a personal glucose meter

Using commercially available personal glucose meters for the determination of hexokinase activity.

Graphical abstract: One-step detection of hexokinase activity using a personal glucose meter
From the themed collection: Analytical Methods Recent HOT articles
Paper

An electrostatic self-assembly route to prepare C-dots/gold nanoclusters for dual-emission ratiometric optical thermometry in living cells

A simple and facile self-assemble strategy is developed to prepare C-dots/gold nanoclusters dual-emission ratiometric optical thermometry in living cells.

Graphical abstract: An electrostatic self-assembly route to prepare C-dots/gold nanoclusters for dual-emission ratiometric optical thermometry in living cells
From the themed collection: Analytical Methods Recent HOT articles
Paper

A simple camphor based AIE fluorescent probe for highly specific and sensitive detection of hydrazine and its application in living cells

The probe DN exhibited excellent selectivity and sensitivity towards ClO, and it was successfully used for fluorescence imaging of ClO in living cells.

Graphical abstract: A simple camphor based AIE fluorescent probe for highly specific and sensitive detection of hydrazine and its application in living cells
From the themed collection: Analytical Methods Recent HOT articles
Paper

Re-evaluation assessment of a large volume sampling (LVS) system for the determination of petroleum hydrocarbons and their stable carbon isotopes in deep-sea waters

A large volume sampling technique is used to develop and validate a home-made SPE system connected to a particle collector in situ pump for high sample pre-concentration and determination of petroleum hydrocarbons and their 13C/12C isotope ratio.

Graphical abstract: Re-evaluation assessment of a large volume sampling (LVS) system for the determination of petroleum hydrocarbons and their stable carbon isotopes in deep-sea waters
From the themed collection: Analytical Methods Recent HOT articles
Paper

Droplet-based microfluidic synthesis of (Au nanorod@Ag)–polyaniline Janus nanoparticles and their application as a surface-enhanced Raman scattering nanosensor for mercury detection

Monodisperse anisotropic (AuNR@Ag)–PANI JNPs were synthesized by using a droplet-based microfluidic platform, and show a fairly good response to Hg2+ ions and have been successfully applied for quantitative analysis of Hg2+ ions in real water samples.

Graphical abstract: Droplet-based microfluidic synthesis of (Au nanorod@Ag)–polyaniline Janus nanoparticles and their application as a surface-enhanced Raman scattering nanosensor for mercury detection
From the themed collection: Analytical Methods Recent HOT articles
Paper

An ultrasensitive label-free photoelectrochemical sensor based on Ag2O-sensitized WO3/TiO2 acicular composite for AFB1 detection

An ultrasensitive label-free photoelectrochemical sensor based on Ag2O-sensitized WO3/TiO2 acicular composite for AFB1 detection.

Graphical abstract: An ultrasensitive label-free photoelectrochemical sensor based on Ag2O-sensitized WO3/TiO2 acicular composite for AFB1 detection
From the themed collection: Analytical Methods Recent HOT articles
Open Access Paper

In situ silanization for continuous stationary phase gradients on particle packed LC columns

This work describes, for the first time, an in situ silanization process for creating phenyl–butyl gradients on particle LC columns.

Graphical abstract: In situ silanization for continuous stationary phase gradients on particle packed LC columns
Paper

Highly sensitive and selective colorimetric determination of Staphylococcus aureus via chicken anti-protein A IgY antibody

Utilization of chicken anti-protein A IgY as an antibody pair for sensitive and selective detection of S. aureus.

Graphical abstract: Highly sensitive and selective colorimetric determination of Staphylococcus aureus via chicken anti-protein A IgY antibody
From the themed collection: Analytical Methods Recent HOT articles
Paper

Comparison of derivatization methods for the quantitative gas chromatographic analysis of oils

Gas chromatographic (GC) determination of quantitative fatty acid composition: which derivatization reagent is the best?

Graphical abstract: Comparison of derivatization methods for the quantitative gas chromatographic analysis of oils
From the themed collection: Analytical Methods Recent HOT articles
Paper

Synthesis of azonia cyanine derivatives as NIR fluorescent probes for nucleic acid detection and cell imaging

A series of azonia cyanine dyes were designed and synthesized for nucleic acid detection and nucleolus imaging in fixed HeLa cells.

Graphical abstract: Synthesis of azonia cyanine derivatives as NIR fluorescent probes for nucleic acid detection and cell imaging
From the themed collection: Analytical Methods Recent HOT articles
Paper

Calibration strategies to correct for matrix effects in direct analysis of urine by ICP OES: internal standardization and multi-energy calibration

Internal standardization and MEC can be used successfully to correct for matrix effects in direct analysis of urine by ICP OES.

Graphical abstract: Calibration strategies to correct for matrix effects in direct analysis of urine by ICP OES: internal standardization and multi-energy calibration
From the themed collection: Analytical Methods Recent HOT articles
Paper

A novel method based on a Mask R-CNN model for processing dPCR images

The flow of Mask R-CNN model for processing digital polymerase chain reaction (dPCR) fluorescence images.

Graphical abstract: A novel method based on a Mask R-CNN model for processing dPCR images
From the themed collection: Analytical Methods Recent HOT articles
Paper

Rapid quantitative analysis of the acidity of iron ore by the laser-induced breakdown spectroscopy (LIBS) technique coupled with variable importance measures-random forests (VIM-RF)

The LIBS technique coupled with VIM-RF was applied for the rapid analysis of the acidity of iron ore.

Graphical abstract: Rapid quantitative analysis of the acidity of iron ore by the laser-induced breakdown spectroscopy (LIBS) technique coupled with variable importance measures-random forests (VIM-RF)
From the themed collection: Analytical Methods Recent HOT articles
Paper

Facile synthesis of MoS2 quantum dots as fluorescent probes for sensing of hydroquinone and bioimaging

A simple, low-cost and one-step hydrothermal treatment for the synthesis of molybdenum disulfide quantum dots (MoS2 QDs) is proposed. They exhibit excellent PL properties and can be promising probes for sensing of hydroquinone and bioimaging.

Graphical abstract: Facile synthesis of MoS2 quantum dots as fluorescent probes for sensing of hydroquinone and bioimaging
From the themed collection: Analytical Methods Recent HOT articles
Paper

Qualitative discrimination of yeast fermentation stages based on an olfactory visualization sensor system integrated with a pattern recognition algorithm

An olfactory visualization sensor system was developed to verify the feasibility of the in situ monitoring of yeast fermentation stages with a pattern recognition algorithm.

Graphical abstract: Qualitative discrimination of yeast fermentation stages based on an olfactory visualization sensor system integrated with a pattern recognition algorithm
From the themed collection: Analytical Methods Recent HOT articles
Paper

A PET and ESIPT based fluorescent probe for the imaging of hydrogen sulfide (H2S) in live cells and zebrafish

H2S is an important signaling molecule in living systems and participates in a series of physiological and pathological processes.

Graphical abstract: A PET and ESIPT based fluorescent probe for the imaging of hydrogen sulfide (H2S) in live cells and zebrafish
From the themed collection: Analytical Methods Recent HOT articles
Paper

Development of a fluorescence sensor array for the discrimination of metal ions and brands of packaged water based on gallate-modified polymer dots

An efficient method has been found to discriminate different brands of packaged water which achieves to detect counterfeit products in the packaged water market.

Graphical abstract: Development of a fluorescence sensor array for the discrimination of metal ions and brands of packaged water based on gallate-modified polymer dots
From the themed collection: Analytical Methods Recent HOT articles
Paper

Chemiluminescent sensor for hydrogen sulfide in rat brain microdialysis based on target-induced horseradish peroxidase deactivation

The detection of hydrogen sulfide (H2S) is important due to its role in the diagnosis of many diseases since H2S is involved in the protection of neurons from oxidative stress and neuronal transmission modulation in the brain.

Graphical abstract: Chemiluminescent sensor for hydrogen sulfide in rat brain microdialysis based on target-induced horseradish peroxidase deactivation
From the themed collection: Analytical Methods Recent HOT articles
Paper

Selective and rapid detection of mercury ion based on DNA assembly and nicking endonuclease-assisted signal amplification

An I-shaped DNA assembly structure coupled with endonuclease-assisted isothermal amplification strategy was constructed for sensitive and fast detection of Hg(II).

Graphical abstract: Selective and rapid detection of mercury ion based on DNA assembly and nicking endonuclease-assisted signal amplification
From the themed collection: Analytical Methods Recent HOT articles
Paper

A FRET-based ratiometric fluorescent probe for sensing trace water in organic solvents

A new ratiometric fluorescent probe for the detection of water in organic solvents with low limit of detection and large Stokes shift.

Graphical abstract: A FRET-based ratiometric fluorescent probe for sensing trace water in organic solvents
From the themed collection: Analytical Methods Recent HOT articles
Paper

Simultaneous determination of cyanide and thiocyanate in swine plasma by high-performance liquid chromatography with fluorescence detection based on a novel D–π–A carbazole-based turn-on fluorescence labeling reagent

The goal of the current work was to develop a simple and sensitive high-performance liquid chromatography in combination with the fluorescence detection (HPLC-FLD) method for the fluorescence turn-on determination of cyanide and thiocyanate in swine plasma.

Graphical abstract: Simultaneous determination of cyanide and thiocyanate in swine plasma by high-performance liquid chromatography with fluorescence detection based on a novel D–π–A carbazole-based turn-on fluorescence labeling reagent
From the themed collection: Analytical Methods Recent HOT articles
Paper

A two-photon fluorescent probe for imaging of endogenous formaldehyde in HeLa cells and quantitative detection of basal formaldehyde in milk samples

A fluorescent probe NaP which can image endogenous formaldehyde in living cells and quantitatively detect basal formaldehyde in milk samples.

Graphical abstract: A two-photon fluorescent probe for imaging of endogenous formaldehyde in HeLa cells and quantitative detection of basal formaldehyde in milk samples
From the themed collection: Analytical Methods Recent HOT articles
Paper

Ag+-coordinated oligonucleotides on gold nanoparticles for anodic-stripping voltammetric immunoassay of cancer antigen 125 for cervical carcinoma

A simple and enzyme-free electrochemical immunoassay was developed for the sensitive screening of cancer antigen 125 using anodic-stripping voltammetry.

Graphical abstract: Ag+-coordinated oligonucleotides on gold nanoparticles for anodic-stripping voltammetric immunoassay of cancer antigen 125 for cervical carcinoma
From the themed collection: Analytical Methods Recent HOT articles
Paper

A simple strategy for carboxylated MWNTs as a metal-free electrosensor for anchoring the RhB C[double bond, length as m-dash]N group

Organic dye detection requires high sensitivity, low-cost equipment, simplified procedures, and real-time capabilities; thus, electrochemical methods are gradually emerging in this field instead of chromatography.

Graphical abstract: A simple strategy for carboxylated MWNTs as a metal-free electrosensor for anchoring the RhB C [[double bond, length as m-dash]] N group
From the themed collection: Analytical Methods Recent HOT articles
Paper

Fabrication of an antibiotic-sensitive 2D-molecularly imprinted photonic crystal

A 2D-molecularly imprinted colloidal array was fabricated for the visual detection of clindamycin hydrochloride and the LOD is 0.01 mM.

Graphical abstract: Fabrication of an antibiotic-sensitive 2D-molecularly imprinted photonic crystal
From the themed collection: Analytical Methods Recent HOT articles
Paper

The imaging of local glucose levels in tumor periphery via peroxyoxalate chemiluminescent nanoparticle–glucose oxidase–doped alginate hydrogel

A simple, sensitive, and biological safety POCL–GOx–alginate/Ca gel system to detect and image local concentration of glucose in tumor periphery.

Graphical abstract: The imaging of local glucose levels in tumor periphery via peroxyoxalate chemiluminescent nanoparticle–glucose oxidase–doped alginate hydrogel
From the themed collection: Analytical Methods Recent HOT articles
Paper

An “on–off–on” fluorescent nanoprobe for recognition of Cu2+ and GSH based on nitrogen co-doped carbon quantum dots, and its logic gate operation

Novel nitrogen co-doped carbon dots (NCDs) were synthesized as a fluorescent “on–off–on” switch for the highly sensitive and selective sensing of Cu2+ and glutathione (GSH) by a straightforward pyrolysis route.

Graphical abstract: An “on–off–on” fluorescent nanoprobe for recognition of Cu2+ and GSH based on nitrogen co-doped carbon quantum dots, and its logic gate operation
From the themed collection: Analytical Methods Recent HOT articles
Paper

A fluorescent signal-on sensor based on photoinduced electron transfer between copper nanoparticles and G-quadruplex/hemin

A novel fluorescence signal-on biosensing platform was developed by using photoinduced electron transfer (PET) between copper nanoclusters (CuNCs) and G-quadruplex/hemin.

Graphical abstract: A fluorescent signal-on sensor based on photoinduced electron transfer between copper nanoparticles and G-quadruplex/hemin
From the themed collection: Analytical Methods Recent HOT articles
Paper

Fiber-optic evanescent wave spectroscopy (FEWS) of crystals from a urine sample as a tool for evaluating the chemical composition of kidney stones

One in every 20 people develops kidney stones at some point in their life.

Graphical abstract: Fiber-optic evanescent wave spectroscopy (FEWS) of crystals from a urine sample as a tool for evaluating the chemical composition of kidney stones
From the themed collection: Analytical Methods Recent HOT articles
Paper

A turn-on near-infrared fluorescent probe with rapid response and large Stokes shift for the selective and sensitive detection of zinc(II) and its application in living cells

Herein, a new near-infrared turn-on fluorescent probe, YPT, was designed and synthesized for the rapid detection of Zn2+, which exhibited low limit of detection for Zn2+ (12 nM) as well as a favorable large Stokes shift (λemλex = 168 nm).

Graphical abstract: A turn-on near-infrared fluorescent probe with rapid response and large Stokes shift for the selective and sensitive detection of zinc(ii) and its application in living cells
From the themed collection: Analytical Methods Recent HOT articles
Open Access Paper

A methodology for the fast identification and monitoring of microplastics in environmental samples using random decision forest classifiers

A new yet little understood threat to our ecosystems is microplastics.

Graphical abstract: A methodology for the fast identification and monitoring of microplastics in environmental samples using random decision forest classifiers
Paper

Evaluation of glyphosate and AMPA in honey by water extraction followed by ion chromatography mass spectrometry. A pilot monitoring study

Two straightforward methods for glyphosate and AMPA analysis in honey through ion chromatography coupled to Q-Orbitrap accurate high-resolution mass spectrometry as well as their application to real samples are presented.

Graphical abstract: Evaluation of glyphosate and AMPA in honey by water extraction followed by ion chromatography mass spectrometry. A pilot monitoring study
From the themed collection: Analytical Methods Recent HOT articles
Paper

Indirect competitive ELISA and colloidal gold-based immunochromatographic strip for amantadine detection in animal-derived foods

In this research, an indirect competitive enzyme-linked immunosorbent assay (ELISA) and colloidal gold-based immunochromatographic (GICG) strip were developed for the detection of the antiviral drug amantadine (AM) in animal-derived foods.

Graphical abstract: Indirect competitive ELISA and colloidal gold-based immunochromatographic strip for amantadine detection in animal-derived foods
From the themed collection: Analytical Methods Recent HOT articles
Paper

A comparison of serum and plasma specimens in NMR-based metabonomics and its application in chronic atrophic gastritis rats

The choice of blood specimens is still disputable in metabonomic studies due to the great metabolic diversities of serum and plasma.

Graphical abstract: A comparison of serum and plasma specimens in NMR-based metabonomics and its application in chronic atrophic gastritis rats
From the themed collection: Analytical Methods Recent HOT articles
Paper

B,N-Co-doped graphene quantum dots as fluorescence sensor for detection of Hg2+ and F ions

A novel fluorescence sensing platform based on boron and nitrogen co-doped graphene quantum dots (B,N-GQDs) was developed and used to detect the concentration of both Hg2+ and F ions.

Graphical abstract: B,N-Co-doped graphene quantum dots as fluorescence sensor for detection of Hg2+ and F− ions
From the themed collection: Analytical Methods Recent HOT articles
Paper

A turn-on near-infrared fluorescent probe for detection of cysteine over glutathione and homocysteine in vivo

Cysteine (Cys) has emerged as a significant sensing target in recent years.

Graphical abstract: A turn-on near-infrared fluorescent probe for detection of cysteine over glutathione and homocysteine in vivo
From the themed collection: Analytical Methods Recent HOT articles
Paper

Point-of-care monitoring of intracellular glutathione and serum triglyceride levels using a versatile personal glucose meter

Portable, cost-effective and quantitative detection of various targets related to health at home and in the field has the potential to revolutionize medical diagnostics.

Graphical abstract: Point-of-care monitoring of intracellular glutathione and serum triglyceride levels using a versatile personal glucose meter
From the themed collection: Analytical Methods Recent HOT articles
Paper

Informatics analysis of capillary electropherograms of autologously doped and undoped blood

Detection of autologous blood doping using capillary electrophoresis and inverse least squares.

Graphical abstract: Informatics analysis of capillary electropherograms of autologously doped and undoped blood
From the themed collection: Analytical Methods Recent HOT articles
Paper

4′-Aminobenzo-18-crown-6 functionalized magnetic nanoparticles as a solid-phase extraction adsorbent for the determination of Pb2+

A novel magnetic adsorbent for Pb2+ was synthesized based on 4′-aminobenzo-18-crown-6 (AB18C6) and Fe3O4–CHO via the Mannich reaction. It showed excellent adsorption and selectivity for Pb2+, and the established MSPE method had excellent potential, displaying the selective determination of trace Pb2+ from apples, milk and rice.

Graphical abstract: 4′-Aminobenzo-18-crown-6 functionalized magnetic nanoparticles as a solid-phase extraction adsorbent for the determination of Pb2+
From the themed collection: Analytical Methods Recent HOT articles
Paper

A NIR ratiometric fluorescent probe for the ‘naked-eye’ detection of endogenous hypochlorous acid in practical samples

We designed a near-infrared ratiometric (2.1 to 15.3, I608/I735) fluorescent probe with a quick response (20 s) based on cyanine polyene derivatives. This probe can detect endogenous hypochlorous acid in HepG-2 cells and determine the hypochlorous acid content in 84 disinfectant and other actual samples.

Graphical abstract: A NIR ratiometric fluorescent probe for the ‘naked-eye’ detection of endogenous hypochlorous acid in practical samples
From the themed collection: Analytical Methods Recent HOT articles
Paper

Multiwalled carbon nanotube/ionic liquid paste electrode for voltammetric determination of sulfachlorpyridazine

In this study, voltammetric techniques have been applied to rapidly determine residues of sulfachloropyridazine (SCP) in milk samples.

Graphical abstract: Multiwalled carbon nanotube/ionic liquid paste electrode for voltammetric determination of sulfachlorpyridazine
From the themed collection: Analytical Methods Recent HOT articles
Paper

Performance evaluation of enantioseparation materials based on chitosan isobutylurea derivatives

Efficient resolution of chiral analytes was achieved using chiral stationary phases with chitosan isobutylurea derivatives as the chiral selector.

Graphical abstract: Performance evaluation of enantioseparation materials based on chitosan isobutylurea derivatives
From the themed collection: Analytical Methods Recent HOT articles
Paper

A homogeneous fluorescent biosensing strategy for highly sensitive detection of DNA based on a programmed entropy-driven strand displacement reaction and DNAzyme for dual recycling amplification

In this study, a homogeneous fluorescent biosensing strategy is described for the detection of DNA based on an entropy-driven strand displacement reaction and DNAzyme.

Graphical abstract: A homogeneous fluorescent biosensing strategy for highly sensitive detection of DNA based on a programmed entropy-driven strand displacement reaction and DNAzyme for dual recycling amplification
From the themed collection: Analytical Methods Recent HOT articles
Paper

A sensitive electrochemical sensor based on reduced graphene oxide/Fe3O4 nanorod composites for detection of nitrofurantoin and its metabolite

In this work, a reduced graphene oxide/Fe3O4 nanorod composite (rGO/Fe3O4NR) modified glassy carbon electrode was fabricated for nitrofurantoin (NFT) and 1-aminohydantoin (AHD) detection.

Graphical abstract: A sensitive electrochemical sensor based on reduced graphene oxide/Fe3O4 nanorod composites for detection of nitrofurantoin and its metabolite
From the themed collection: Analytical Methods Recent HOT articles
Paper

Chemical investigations of bitumen from Neolithic archaeological excavations in Italy by GC/MS combined with principal component analysis

An analytical protocol involving microwave assisted solvent extraction followed by GC/MS and principal component analysis (PCA) of the chromatographic data was used for the characterization of bituminous residues sampled from Neolithic objects recovered from excavations in Italy.

Graphical abstract: Chemical investigations of bitumen from Neolithic archaeological excavations in Italy by GC/MS combined with principal component analysis
From the themed collection: Analytical Methods Recent HOT articles
Paper

Comparison of GC-MS/MS and LC-MS/MS for the analysis of hormones and pesticides in surface waters: advantages and pitfalls

The occurrence of endocrine disrupting chemicals (EDCs) in aquatic environments has long been a concern because of their threat to human and aquatic health.

Graphical abstract: Comparison of GC-MS/MS and LC-MS/MS for the analysis of hormones and pesticides in surface waters: advantages and pitfalls
From the themed collection: Analytical Methods Recent HOT articles
Paper

Rapid classification of plastics by laser-induced breakdown spectroscopy (LIBS) coupled with partial least squares discrimination analysis based on variable importance (VI-PLS-DA)

Combination of LIBS and VI-PLS-DA is a promising approach to achieve the online analysis and process control of waste plastic recycling.

Graphical abstract: Rapid classification of plastics by laser-induced breakdown spectroscopy (LIBS) coupled with partial least squares discrimination analysis based on variable importance (VI-PLS-DA)
From the themed collection: Analytical Methods Recent HOT articles
Paper

A target-induced and equipment-free biosensor for amplified visual detection of pesticide acetamiprid with high sensitivity and selectivity

An equipment-free and naked-eye biosensor was developed for amplified detection of pesticide acetamiprid using G-quadruplex as the signal reporter.

Graphical abstract: A target-induced and equipment-free biosensor for amplified visual detection of pesticide acetamiprid with high sensitivity and selectivity
From the themed collection: Analytical Methods Recent HOT articles
Paper

A nuclease protection ELISA assay for colorimetric and electrochemical detection of nucleic acids

The NP-ELISA combines traditional nuclease protection with optical and electrochemical enzymatic readout for nucleic acid detection.

Graphical abstract: A nuclease protection ELISA assay for colorimetric and electrochemical detection of nucleic acids
From the themed collection: Analytical Methods Recent HOT articles
Paper

Construction of a novel xanthine biosensor using zinc oxide (ZnO) and the biotemplate method for detection of fish freshness

In the food industry, fish is a product that has a short shelf life, and xanthine has attracted significant attention as an indicator of the freshness of fish.

Graphical abstract: Construction of a novel xanthine biosensor using zinc oxide (ZnO) and the biotemplate method for detection of fish freshness
From the themed collection: Analytical Methods Recent HOT articles
Paper

Enhanced one-step sample pretreatment method for extraction of ginsenosides from rat plasma using tailor-made deep eutectic mixture solvents

Enriching trace amounts of traditional Chinese medicine active components from plasma samples using green and efficient solvents is still challenging.

Graphical abstract: Enhanced one-step sample pretreatment method for extraction of ginsenosides from rat plasma using tailor-made deep eutectic mixture solvents
From the themed collection: Analytical Methods Recent HOT articles
Paper

Enhanced fluorescence detection of enrofloxacin with curved-surface responsive inverse opal polymers and molecular imprinting

Enhanced fluorescence sensing of enrofloxacin has been realized by molecular imprinting on curved-surface responsive inverse opal polymers.

Graphical abstract: Enhanced fluorescence detection of enrofloxacin with curved-surface responsive inverse opal polymers and molecular imprinting
From the themed collection: Analytical Methods Recent HOT articles
Paper

Determination of sample stability for whole blood parameters using formal experimental design

Hematocrit increases with storage time, leading to a decrease in transport distance in our paper-based hematocrit device.

Graphical abstract: Determination of sample stability for whole blood parameters using formal experimental design
From the themed collection: Analytical Methods Recent HOT articles
Paper

An efficient “Ratiometric” fluorescent chemosensor for the selective detection of Hg2+ ions based on phosphonates: its live cell imaging and molecular keypad lock applications

Herein, we have reported the ability of smart chemosensors (L1 and L2) to selectively detect Hg(II) ions over other metal ions and examined this phenomenon by various spectroscopy techniques.

Graphical abstract: An efficient “Ratiometric” fluorescent chemosensor for the selective detection of Hg2+ ions based on phosphonates: its live cell imaging and molecular keypad lock applications
From the themed collection: Analytical Methods Recent HOT articles
Paper

Simple label-free fluorescence detection of apurinic/apyrimidinic endonuclease 1 activity and its inhibitor using the abasic site-binding fluorophore

A label-free fluorescence detection method for apurinic/apyrimidinic endonuclease 1 activity was reported based on the abasic site-binding fluorophore.

Graphical abstract: Simple label-free fluorescence detection of apurinic/apyrimidinic endonuclease 1 activity and its inhibitor using the abasic site-binding fluorophore
From the themed collection: Analytical Methods Recent HOT articles
Paper

Cysteine-rich protein-templated silver nanoclusters as a fluorometric probe for mercury(II) detection

In this paper, we explored a convenient method for preparing stable silver nanoclusters (AgNCs) within 1 h at room temperature using keratin as a template and NaBH4 as a reducing agent.

Graphical abstract: Cysteine-rich protein-templated silver nanoclusters as a fluorometric probe for mercury(ii) detection
From the themed collection: Analytical Methods Recent HOT articles
Paper

Development of a microfluidic device (μPADs) for forensic serological analysis

In this paper, we describe a paper microfluidic device capable of performing a variety of presumptive tests for the presence of biological fluids at crime scenes.

Graphical abstract: Development of a microfluidic device (μPADs) for forensic serological analysis
From the themed collection: Analytical Methods Recent HOT articles
Paper

Allele specific DNAzyme assembly for fast and convenient SNP colorimetric genotyping directly from noninvasive crude samples

An allele specific DNAzyme assembly strategy was developed for fast and simple SNP genotyping directly from crude buccal swab samples without DNA extraction and purification.

Graphical abstract: Allele specific DNAzyme assembly for fast and convenient SNP colorimetric genotyping directly from noninvasive crude samples
From the themed collection: Analytical Methods Recent HOT articles
Open Access Paper

Characterisation of thin boron-doped diamond films using Raman spectroscopy and chemometrics

A non-destructive chemometric method to determine thickness and boron concentration of as-deposited, thin, heavily doped diamond films by Raman microscopy.

Graphical abstract: Characterisation of thin boron-doped diamond films using Raman spectroscopy and chemometrics
Paper

Aluminum-doped NiO nanofibers as chemical sensors for selective and sensitive methanol detection

One-dimensional nanomaterials with controlled morphology have received considerable attention as chemical sensors.

Graphical abstract: Aluminum-doped NiO nanofibers as chemical sensors for selective and sensitive methanol detection
From the themed collection: Analytical Methods Recent HOT articles
Paper

MoS2 QDs co-catalytic Fenton reaction for highly sensitive photoluminescence sensing of H2O2 and glucose

Combing the excellent catalytic and optical properties of MoS2 QDs, the MoS2 QDs-based co-catalytic Fenton system was developed for highly sensitive photoluminescence sensing of H2O2 and glucose.

Graphical abstract: MoS2 QDs co-catalytic Fenton reaction for highly sensitive photoluminescence sensing of H2O2 and glucose
From the themed collection: Analytical Methods Recent HOT articles
Paper

Two-photon fluorescent probe for hypoxic cancer stem cells by responding to endogenous nitroreductase

A two-photon fluorescent probe to detect the NTR in 3D cultured-cancer stem cells and monitor the hypoxic microenvironment in vitro. This novel probe was hoped to apply for disease-relevant hypoxia detection in the biomedical research fields.

Graphical abstract: Two-photon fluorescent probe for hypoxic cancer stem cells by responding to endogenous nitroreductase
From the themed collection: Analytical Methods Recent HOT articles
175 items - Showing page 1 of 3

About this collection

This collection represents the top 10% of research published in Analytical Methods. Featured articles are 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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