Themed collection Analyst HOT Articles 2024
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Analytical applications of droplet deposition Raman spectroscopy
This review summarizes sensitive analytical detection. Analyte pre-concentration by droplet deposition is combined with SERS enhancement.
Analyst, 2024,149, 3276-3287
https://doi.org/10.1039/D4AN00336E
Impact electrochemistry for biosensing: advances and future directions
This minireview summarizes the recent advancements in impact electrochemistry-based biosensing over the past two to three years and provides insights into the future directions of this field.
Analyst, 2024,149, 2498-2506
https://doi.org/10.1039/D4AN00170B
DNA nanotechnology-based nucleic acid delivery systems for bioimaging and disease treatment
This review aims to introduce the development of DNA nanotechnology and recent advances of DNA nanostructure-based delivery systems for bioimaging, disease diagnosis, and therapeutic applications.
Analyst, 2024,149, 599-613
https://doi.org/10.1039/D3AN01871G
Noble metal-free SERS: mechanisms and applications
Surface-enhanced Raman scattering (SERS) is a very important tool in vibrational spectroscopy.
Analyst, 2024,149, 11-28
https://doi.org/10.1039/D3AN01669B
Recent progress of metal–organic framework-based nanozymes with oxidoreductase-like activity
The research progress of MOF-based nanozymes with oxidoreductase-like activity.
Analyst, 2024,149, 1416-1435
https://doi.org/10.1039/D3AN01995K
A review on recent advances in assays for DNMT1: a promising diagnostic biomarker for multiple human cancers
The abnormal expression of human DNA methyltransferases (DNMTs) is closely related with the occurrence and development of a wide range of human cancers.
Analyst, 2024,149, 1002-1021
https://doi.org/10.1039/D3AN01915B
Shedding light on cellular dynamics: the progress in developing photoactivated fluorophores
Photoactivated fluorophores (PAFs) are highly effective imaging tools that exhibit a removal of caging groups upon light excitation, resulting in the restoration of their bright fluorescence.
Analyst, 2024,149, 689-699
https://doi.org/10.1039/D3AN01994B
Fluorescent probes for neuroscience: imaging ex vivo brain tissue sections
Neurobiological research relies heavily on imaging techniques, such as fluorescence microscopy, to understand neurological function and disease processes.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00663A
Comprehensive review on fluorescent carbon dots and their applications in nucleic acid detection, nucleolus targeted imaging and gene delivery
A comprehensive review on the properties and versatile applications of fluorescent carbon dots in detecting nucleic acids, imaging nucleoli, and delivering genes.
Analyst, 2024,149, 4095-4115
https://doi.org/10.1039/D4AN00630E
Advances in uremic toxin detection and monitoring in the management of chronic kidney disease progression to end-stage renal disease
Patients with end-stage kidney disease (ESKD) rely on dialysis to remove toxins and stay alive.
Analyst, 2024,149, 2784-2795
https://doi.org/10.1039/D4AN00057A
Deciphering biomolecular complexities: the indispensable role of surface-enhanced Raman spectroscopy in modern bioanalytical research
Overview of recent studies on SERS for biomolecular complexities analysis.
Analyst, 2024,149, 2526-2541
https://doi.org/10.1039/D4AN00272E
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Separation and purification of fluorescent carbon dots – an unmet challenge
Different purification techniques for carbon dots.
Analyst, 2024,149, 1680-1700
https://doi.org/10.1039/D3AN02134C
Recent advances of nanopore technique in single cell analysis
Overview of nanopores for single cell detection.
Analyst, 2024,149, 1350-1363
https://doi.org/10.1039/D3AN01973J
Recent advances in biological molecule detection based on a three-dimensional graphene structure
This review summarizes the recent advances in three-dimensional graphene structures, including preparation methods and their detection application in the biomedical field.
Analyst, 2024,149, 1364-1380
https://doi.org/10.1039/D3AN01932B
Carbon dots@noble metal nanoparticle composites: research progress report
Synthesis, characterization, and application of carbon dots@noble metal nanocomposites.
Analyst, 2024,149, 665-688
https://doi.org/10.1039/D3AN01580G
Recent advances in optical biosensing and imaging of telomerase activity and relevant signal amplification strategies
Fluorometric, colorimetry, chemiluminescence, SERS, and dual-mode techniques for biosensing and imaging of telomerase are summerized. Relevant signal amplification strategies are included to provide ideas for exploration of more practicable methods.
Analyst, 2024,149, 290-303
https://doi.org/10.1039/D3AN01900D
A review of electrochemical impedance as a tool for examining cell biology and subcellular mechanisms: merits, limits, and future prospects
Herein the development of cellular impedance biosensors, electrochemical impedance spectroscopy, and the general principles and terms associated with the cell–electrode interface is reviewed.
Analyst, 2024,149, 269-289
https://doi.org/10.1039/D3AN01423A
Optical sensors (optodes) for multiparameter chemical imaging: classification, challenges, and prospects
Seeing is believing - and optical sensors (optodes) are ideal tools to make chemistry visible in real time. Find out how technological and chemical advances enable multiparameter imaging of complex samples.
Analyst, 2024,149, 29-45
https://doi.org/10.1039/D3AN01661G
Characterizing and understanding the photovoltage in n-Si/Au light-addressable electrochemical sensors
The photovoltage (Voc) of n-Si/Au photoelectrodes varies with the solution potential (E0) when E0 falls between the valence and conduction band edges of the semiconductor but is constant when E0 is more positive than the valence band edge.
Analyst, 2024,149, 3716-3720
https://doi.org/10.1039/D4AN00768A
Visual electrochemiluminescence from an all-solid-state electrochemical cell
Visual electrochemiluminescence (ECL) emission from L012 and hydrogen peroxide is generated from an all-solid-state electrochemical cell with a polyacrylamide hydrogel as the solid electrolyte.
Analyst, 2024,149, 3721-3724
https://doi.org/10.1039/D4AN00355A
Preparation and utilization of carbon dots as a nanoprobe for sensitive detection of tartrazine and palladium (II)
A novel green and eco-friendly carbon-based nanoprobe was developed for dual-channel analysis of tartrazine (Trz) and Pd(II) involving, respectively, fluorescence resonance energy transfer (FRET) and electron transfer mechanisms.
Analyst, 2024,149, 3073-3077
https://doi.org/10.1039/D4AN00502C
Preparation of near-infrared photoacoustic imaging and photothermal treatment agent for cancer using a modifiable acid-triggered molecular platform
We report here a tunable proton platform for the tumor micro-acid environment that is used for tumor imaging and treatment.
Analyst, 2024,149, 3064-3072
https://doi.org/10.1039/D4AN00189C
Ultra-clean pure shift NMR with optimal water suppression for analysis of aqueous pharmaceutical samples
Pure shift NMR experiments greatly enhance spectral resolution by collapsing multiplet structures into singlets and, with optimal water suppression, can be used for aqueous samples.
Analyst, 2024,149, 2227-2231
https://doi.org/10.1039/D3AN02150E
Characterization of nanozyme kinetics for highly sensitive detection
Enzymes (1) and nanozymes (2) have significant differences in the Michaelis–Menten constant. Detection of nanozymes using enzyme substrates results in lower catalytic activity and a significantly higher limit of detection.
Analyst, 2024,149, 2223-2226
https://doi.org/10.1039/D4AN00250D
Exploration of glutaredoxin-1 oxidative modification in carbon nanomaterial-induced hepatotoxicity
Graphene oxide can increase the levels of intracellular H2O2 and ˙OH, and cause the irreversible oxidative modification. This leads to the activation of the JNK/p38 signaling pathway and promote hepatocyte apoptosis.
Analyst, 2024,149, 1971-1975
https://doi.org/10.1039/D4AN00051J
Split G-quadruplex based PfAgo sensing platform for nucleotide mutation discrimination and human genotyping
A split G-quadruplex based PfAgo sensing platform was developed for nucleotide mutation discrimination and human genotyping.
Analyst, 2024,149, 707-711
https://doi.org/10.1039/D3AN02090H
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An innovative in situ AFM system for a soft X-ray spectromicroscopy synchrotron beamline
The development of an in situ combination of AFM and soft X-ray μXRF in a single instrument, with AFM integration accomplished without substantial original set-up alteration.
Analyst, 2024,149, 700-706
https://doi.org/10.1039/D3AN01358H
Ultrasensitive electrochemical detection and inhibition evaluation of DNA methyltransferase based on cascade strand displacement amplification
An electrochemical sensing approach for ultrasensitive MTase activity assay is proposed based on cascade strand displacement polymerization after specific cleavage reaction in the methylated state.
Analyst, 2024,149, 59-62
https://doi.org/10.1039/D3AN01780J
A noble metal-enhanced Au@CuO heterostructure with multienzyme-mimicking activities for colorimetric detection of tannic acid
Nanozymes offer several benefits including cost-effectiveness, enzyme-like catalytic abilities, enhanced stability, adjustable catalytic activity, easy recyclability, mild reaction conditions, and environmental friendliness.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN01013B
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Characterization of vaginal Lactobacillus in biologically relevant fluid using surface-enhanced Raman spectroscopy
Surface-enhanced Raman spectroscopy (SERS) and partial least squares regression was utilized to determine the dominant bacteria in mixtures of two common vaginal microbes in both pure and complex fluids.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00854E
A novel NIR fluorescent probe for visualizing hydrogen sulfide in Alzheimer's disease
A novel near-infrared fluorescent probe was developed for selectively monitoring hydrogen sulfide (H2S). This probe was successfully applied to detect H2S in living cells, zebrafish, and hippocampal tissue of Alzheimer's disease (AD) mouse models.
Analyst, 2024,149, 4370-4377
https://doi.org/10.1039/D4AN00819G
Ultrasensitive detection of the H5N1 nucleic acid fragment by ICP-MS using DNA dendrimer-carried silver nanoparticle labeling
Ultrasensitive detection of the H5N1 nucleic acid fragment by ICP-MS using DNA dendrimer-carried AgNP labeling was developed. This approach enabled significant signal amplification, while magnetic separation effectively suppressed background signals.
Analyst, 2024,149, 4363-4369
https://doi.org/10.1039/D4AN00746H
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Corrective protocol to predict interference free sensor response for paper-based solution sampling coupled with heavy metal sensitive ion-selective electrodes
The corrective protocol predicts sensor response from paper-based solution sampling potentiometric measurement, offering a simple method to correct the readout. This eliminates the need to modify the paper substrate for measuring heavy metal ions.
Analyst, 2024,149, 4351-4362
https://doi.org/10.1039/D4AN00841C
Photo-triggered AuAg@g-C3N4 composite nanoplatform for multimodal broad-spectrum antibacterial therapy
Strategies based on nanomaterials for sterilization address the problem of antibiotic resistance faced by conventional antimicrobials, with the contribution of photocatalytic compounds being particularly prominent.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00950A
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Red stains on heritage marbles: application of micro-scale analyses to assess the presence and distribution of lead compounds
Multi-analytical approach to reveal the presence and distribution of lead compounds at the micro-scale level in the red stains on heritage marbles.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00692E
Non-invasive diagnostic test for lung cancer using biospectroscopy and variable selection techniques in saliva samples
Saliva samples are analysed by using infrared (IR) spectroscopy with computational tools to diagnose lung cancer patients in a screening program study.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00726C
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1,4-Dihydropyridine-based FA1 site-specific fluorescent probes for the selective detection and quantification of HSA levels in biofluids
4-methylene-N-alkyl dihydropyridine derivatives bind preferentially to the FA 1 site and are used to quantitatively estimate HSA levels in blood and serum.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00881B
Antenna effect enhanced ECL immunoassay using microfloral europium porphyrin coordination polymers based on Eu3+ and TCPP for the detection of chloramphenicol in foods
The “antenna effect” is one of the most important energy transfer modes in lanthanide light-emitting polymers.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00760C
A robust methodology for PEC performance analysis of photoanodes using machine learning and analytical data
Robust machine learning scheme using analytical data to improve photoanode performance.
Analyst, 2024,149, 4193-4207
https://doi.org/10.1039/D4AN00439F
Electrochromic visualization of latent fingermarks deposited on nonconductive surfaces
Latent fingermarks on non-conducting surfaces such as glass, ceramics, and plastics can be visualized electrochromically using benzyl viologen and with the assistance of gold layer.
Analyst, 2024,149, 4187-4192
https://doi.org/10.1039/D4AN00632A
High-precision Helicobacter pylori infection diagnosis using a dual-element multimodal gas sensor array
A non-invasive, label-free and high-precision diagnosis of Helicobacter pylori (H. pylori) infection is conducted by using a dual-element multimodal gas sensor array.
Analyst, 2024,149, 4168-4178
https://doi.org/10.1039/D4AN00520A
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Forced intercalation-induced light-up peptides as fluorogenic indicators for the HIV-1 TAR RNA-ligand assay
New fluorogenic indicators for HIV-1 TAR RNA have been developed for fluorescence indicator displacement (FID) assay based on forced intercalation of thiazole orange unit integrated into the middle of transactivator of transcription (Tat) peptide.
Analyst, 2024,149, 4179-4186
https://doi.org/10.1039/D4AN00530A
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The impact of zwitterionic surfactants on optode-based nanosensors via different fabrication approaches and sensing mechanisms
We studied the impact of zwitterionic surfactants on three different sensing mechanisms, nanomaterial encapsulation, and compatibility with different fabrication approaches.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00687A
Insights into the terahertz response of L-glutamic acid and its receptor
THz reveals the interaction between L-Glu and the NMDAR involving water molecules.
Analyst, 2024, Advance Article
https://doi.org/10.1039/D4AN00697F
Facile, green and scalable synthesis of single-layer manganese dioxide nanosheets and its application for GSH and cTnI colorimetric detection
A facile, green method and scalable synthesis of MnO2 nanosheets by mixing Shiranui mandarin orange juice and KMnO4. A rapid and robust colorimetric assay was developed for the quantification of GSH and cTnI based on MnO2 nanosheets-TMB system.
Analyst, 2024,149, 3961-3970
https://doi.org/10.1039/D4AN00689E
Qualifying P-glycoprotein in drug-resistant ovarian cancer cells: a dual-mode aptamer probe approach
Our dual-mode FI and FP aptamer probe detects P-glycoprotein in drug-resistant ovarian cancer cells, demonstrating high specificity and sensitivity with detection limits of 1.13 nM and 40 cells per mL, promising improved diagnosis strategies.
Analyst, 2024,149, 3928-3938
https://doi.org/10.1039/D4AN00803K
Degradation and detection of organophosphorus pesticides based on peptides and MXene–peptide composite materials
Schemetic diagram of preparation of MXene–peptide composites.
Analyst, 2024,149, 3951-3960
https://doi.org/10.1039/D4AN00674G
Evaluating early apoptosis-related cellular MiRNAs with an ultrasensitive electrochemiluminescence nanoplatform
It is known that the abnormal expression of specific cellular miRNAs is closely related to cell apoptosis, and so monitoring the level change of these miRNAs can in principle be used to evaluate the process of apoptosis stimulated by drugs.
Analyst, 2024,149, 3971-3979
https://doi.org/10.1039/D4AN00765D
An electrochemical method based on CRISPR-Cas12a and enzymatic reaction for the highly sensitive detection of tumor marker MUC1 mucin
An electrochemical aptamer biosensor based on the CRISPR-Cas12a system was constructed for the detection of cancer tumor biomarker MUC1 mucin, the sensitivity was significantly improved by employing the enzyme catalytic reaction.
Analyst, 2024,149, 3920-3927
https://doi.org/10.1039/D4AN00595C
An extracellular vesicle microRNA-initiated 3D DNAzyme motor for colorectal cancer diagnosis
Combining target-initiated 3D DNAzyme motors with single-molecule imaging enables intuitive, sensitive and rapid detection of different miRNAs. Dual miRNA detection of EVs using this method is effective for clinical diagnosis of colorectal cancer.
Analyst, 2024,149, 3910-3919
https://doi.org/10.1039/D4AN00635F
Identification of new AAV vectors with enhanced blood–brain barrier penetration efficiency via organ-on-a-chip
An organ-on-a-chip in vitro human model of the blood–brain barrier (BBB) was applied to iteratively enrich for AAV variants that efficiently cross the BBB and transduce astrocyte cells.
Analyst, 2024,149, 3980-3988
https://doi.org/10.1039/D4AN00404C
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Understanding dynamic voltammetry in a dissolving microdroplet
We quantified the dissolution rate of sub-nL oil microdroplets in a bulk aqueous phase based on the evolution of cyclic voltammograms recorded for a redox mediation confined in the microdroplet.
Analyst, 2024,149, 3939-3950
https://doi.org/10.1039/D4AN00299G
Magneto-electrochemical method for chiral recognition of amino acid enantiomers
A magneto-electrochemical method for enhanced chiral recognition of amino acid enantiomers has been developed.
Analyst, 2024,149, 3732-3738
https://doi.org/10.1039/D4AN00547C
A binding-triggered hybridization chain reaction cascade multi-site activated CRISPR/Cas12a signal amplification strategy for sensitive detection of α-synuclein
A binding-triggered hybridization chain reaction cascade multi-site activated CRISPR/Cas12a signal amplification strategy for sensitive detection of α-synuclein. This work provides a promising analysis tool for the early diagnosis of Parkinson's disease.
Analyst, 2024,149, 3725-3731
https://doi.org/10.1039/D4AN00453A
Super-assembled periodic mesoporous organosilica membranes with hierarchical channels for efficient glutathione sensing
A periodic mesoporous organosilica (PMO)-based heteromembrane with hierarchical pore architecture and glutathione (GSH)-responsive switchable wettability is synthesized for sensitive and efficient GSH detection.
Analyst, 2024,149, 3522-3529
https://doi.org/10.1039/D4AN00559G
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Acoustic detection of a mutation-specific Ligase Chain Reaction based on liposome amplification
Development of an acoustic methodology for the sensitive detection of LCR-amplified cancer mutations at a single point mutation-level.
Analyst, 2024,149, 3537-3546
https://doi.org/10.1039/D3AN02142D
A bimodal time-gated luminescence–magnetic resonance imaging nanoprobe based on a europium(III) complex anchored on BSA-coated MnO2 nanosheets for highly selective detection of H2O2
A novel nanocomposite, [Eu(BTD)3(DPBT)]–BSA@MnO2, is reported to serve as an effective nanoprobe for bimodal time-gated luminescence (TGL) and magnetic resonance (MR) imaging of H2O2in vitro and in vivo.
Analyst, 2024,149, 3547-3554
https://doi.org/10.1039/D4AN00419A
Fabrication of an all-in-one self-enhanced solid-state electrochemiluminescence sensing platform for the selective detection of spermine
Fabrication of chemically synthesised silica polyethylene nanoparticles acted as an all-in-one solid-state ECL platform for selective sensing of spermine which offers an expediting the miniaturization of sensing devices and point-of-care needs.
Analyst, 2024,149, 3555-3563
https://doi.org/10.1039/D4AN00357H
Electroactive polymer tag modified nanosensors for enhanced intracellular ATP detection
We developed a simple and effective electrochemical signal amplification strategy for intracellular ATP quantification, which replaces the regular ATP aptamer-linked ferrocene monomer to a polymer on electrochemical nanosensors.
Analyst, 2024,149, 3530-3536
https://doi.org/10.1039/D4AN00511B
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A facile method for monitoring sphingomyelin synthase activity in HeLa cells using liquid chromatography/mass spectrometry
An LC-MS/MS-based assay for monitoring sphingomyelin synthase (SMS) activity was developed. The method is highly useful in screening novel inhibitors for SMS.
Analyst, 2024,149, 3293-3301
https://doi.org/10.1039/D4AN00304G
A multi-channel electrochemical biosensor based on polyadenine tetrahedra for the detection of multiple drug resistance genes
PolyA-TDF enables PCR-free qualitative detection of drug-resistant genes, integrating biosensor recognition and probe immobilization via strong adsorption to gold.
Analyst, 2024,149, 3425-3432
https://doi.org/10.1039/D4AN00488D
Shadow electrochemiluminescence imaging of giant liposomes opening at polarized electrodes
In this work, the release of giant liposome (∼100 μm in diameter) content was imaged by shadow electrochemiluminescence (ECL) microscopy.
Analyst, 2024,149, 3317-3324
https://doi.org/10.1039/D4AN00470A
A mesothelin microsensor based on an embedded thionine electronic medium within an imprinted polymer on an acupuncture needle electrode
An electrochemical microsensor of mesothelin was prepared based on surface imprinted nano-interface coordinated embedded thionine, and it was constructed via a green route of electrosynthesis and self-assembly.
Analyst, 2024,149, 3309-3316
https://doi.org/10.1039/D4AN00490F
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Transient theory for scanning electrochemical microscopy of biological membrane transport: uncovering membrane–permeant interactions
The finte element simulation predicts that interactions of a biological membrane with a permeant can be determined quantitatively by employing transient scanning electrochemical microscopy to discriminate between one-step and two-step transport.
Analyst, 2024,149, 3115-3122
https://doi.org/10.1039/D4AN00411F
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Resistive pulse analysis of chiral amino acids utilizing metal–amino acid crystallization differences
Here, we report a proof-of-concept resistive pulse method for analyzing chiral amino acids utilizing metal–amino acid crystallization differences.
Analyst, 2024,149, 3108-3114
https://doi.org/10.1039/D4AN00347K
Photonic–plasmonic resonator for SERS biodetection
We construct a hybrid photonic–plasmonic resonator SERS substrate with high enhancement factor and can be used to detect cancer biomarkers in serum for differentiation of different cancers.
Analyst, 2024,149, 3123-3130
https://doi.org/10.1039/D4AN00384E
Anisotropic growth of gold anchors on CdSe semiconductor quantum platelets for self-assembled architectures with well-connected electronic circuits for the electrochemical detection of enrofloxacin
Anisotropic growth of gold anchors on CdSe semiconductor quantum platelets for self-assembled architectures with well-connected electronic circuits for enrofloxacin electro-oxidation.
Analyst, 2024,149, 3131-3139
https://doi.org/10.1039/D4AN00412D
Maintenance-free antifouling polymeric membrane potentiometric sensors based on self-polishing coatings
For the first time, a novel strategy for fabrication of maintenance-free and contamination-free polymeric membrane potentiometric sensors is proposed.
Analyst, 2024,149, 2855-2863
https://doi.org/10.1039/D4AN00351A
Optical tracking of the heterogeneous solvent diffusion dynamics and swelling kinetics of single polymer microspheres
The upper is a schematic of the swelling kinetics of a single representative PMMA microsphere in solvent at different reaction time nodes. The bottom shows the corresponding optical tracking of the extraction process of edge changes during the swelling of a single PMMA particle.
Analyst, 2024,149, 2826-2832
https://doi.org/10.1039/D4AN00279B
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In situ monitoring of the shikimate pathway: a combinatorial approach of Raman reverse stable isotope probing and hyperspectral imaging
Sensing and visualization of metabolites and metabolic pathways in situ are significant requirements for tracking their spatiotemporal dynamics in a non-destructive manner.
Analyst, 2024,149, 2833-2841
https://doi.org/10.1039/D4AN00203B
About this collection
This themed collection features articles published in Analyst marked as HOT by the handling editor or as recommended by referees. Congratulations to all the authors whose articles are featured.