Showing papers in "Analytica Chimica Acta in 2022"

TL;DR: An effective extraction procedure based dispersive solid phase extraction was developed for the extraction of different pesticides (dimethoate, imidacloprid, pirimicarb, carbaryl, fenitrothion, hexythiazox, and phosalone) from milk samples as mentioned in this paper .

TL;DR: This review provides more insights into the fabrication of high-efficiency immunosensor, and special attention has been devoted to the well-orientation of full-length IgGs onto the sensing platform.

TL;DR: In this paper , the authors classified the stepwise strategy into two parts based on the different noncovalent interactions, namely adhesive layer-mediated interaction onto homofunctional support and layer-free interaction onto heter-of-functional support (which displays several different functionalities on its surface that are capable to interact with IgGs).

TL;DR: In this paper , an electrochemical NSE immunosensor based on gold nanoparticles modified molybdenum disulfide and reduced graphene oxide (AuNPs@MoS2/rGO) as the electrode platform and CoFe2O4@Ag nanocomposite as the signal amplification was developed.

TL;DR: In this article , the implementation of the QEPAS technique for multi-gas detection will be discussed for three main areas of applications: i) multi gas trace sensing by exploiting non-interfering absorption features; ii) multi-ga detection dealing with overlapping absorption bands; iii) multiga detection in fluctuating backgrounds.

TL;DR: In this article , a simple method to produce an efficient conductive filament, containing graphite within the polymer matrix of PLA, and applied in conjunction with 3D printing technology to generate (bio)sensors without the need for surface activation was reported.

TL;DR: In this paper , a three-dimensional g-C3N4/MWNTs/GO hybrid modified electrode was constructed as an electrochemical sensor for the simultaneous determination of ascorbic acid (AA), dopamine (DA) and uric acid(UA).

TL;DR: In this article , the use of nanomaterials for improving the performance of aflatoxins of interest for food control has been discussed, and some examples of relevant approaches are highlighted, together with future prospects and challenges.

TL;DR: A detailed overview of relevant developments in separation and analysis of proteins by capillary electromigration (CE) methods in the period 2017-mid 2021 can be found in this paper , where several novel applications of CE methods, such as quality control and characterization of protein biopharmaceuticals, determination of proteins in complex biomatrices, investigation of posttranslational modification, peptide mapping, interactions of proteins with other (bio)molecules and determination of their physicochemical and biochemical characteristics.

TL;DR: In this article , electropolymerized molecularly imprinted polymers (E-MIPs) were used for the selective recognition of SARS-CoV-2 whole virus.

TL;DR: Li et al. as mentioned in this paper proposed a hybrid scan approach, namely HDDIDDA, which involves three scan events: 1) IM-enabled full scan (MS1), 2) high-definition MSE (HDMSE) of all precursor ions (MS2); and 3) highdefinition DDA (HDDDA) of top N precursors (MS 2).

TL;DR: In this paper , a dual-emission Eu-MOF with dual-ligand strategy, denoted as EuDATA/BDC, was designed for the diagnosis of Wilson's disease.

TL;DR: In this paper , a stable chitosan cross-linked graphene oxide (GOCS) aerogel was reported as a novel coating for solid phase microextraction.

TL;DR: In this article , a simple electrochemical biosensor based on a highly specific synthetic peptide to detect SARS-CoV-2 Spike protein was reported, which used screen-printed gold electrodes functionalized with the thiolated peptide, whose interaction with the Spike protein is directly followed by electrochemical impedance spectroscopy.

TL;DR: Wang et al. as mentioned in this paper developed a droplet digital reverse transcription loop-mediated isothermal amplification (RT-LAMP) enhanced Cas12b-based RNA detection platform (RECD), for quantitative detection of viral RNA.

TL;DR: In this article , the authors reported a promising approach to design ratiometric fluorescent nanoprobes for multiplexed determination of Hg2+, Cu2+, and Ag+ ions.

TL;DR: In this paper , a novel ionic sensor based on nitrogen-doped carbon quantum dots (N-CQDs) was developed for sensitive detection of hypochlorite ions (ClO-) and dichromate ions (Cr(Ⅵ)) by fluorescence spectrometry.

TL;DR: In this paper , a screen-printed electrode was modified by a bimetallic Mn2+/Fe3+ metal-organic framework (MnFe-MOF) for the direct determination of organophosphate pesticide chlorpyrifos.

TL;DR: In this paper , a review of the aptamers in SELEX experiments is presented and compared with the natural RNA aptamer from riboswitches and with some of the best naturally occurring protein based recognition elements for proteins and small molecules.

TL;DR: In this paper , the authors applied Raman spectroscopy coupled with multivariate analysis to develop a new and robust analytical method to comprehensively interrogate the spectral profiles of seven micro-plastic references and real microplastic samples post-exposure to environmental stresses.

TL;DR: In this paper , a review article mainly focuses on the development of surface enhanced Raman scattering based glucose sensors in recent 10 years and summarizes the sensing mechanisms, rational design and sensing properties to glucose.

TL;DR: In this paper, morphology-controlled Cu-Sn alloy nanosheet arrays supported on carbon fiber paper (CP) substrate (Cu-Sn/CP) have been developed by a facile one-step electrodeposition technique at room temperature for the first time.

TL;DR: Wang et al. as discussed by the authors presented CASCADE (CRISPR/CAS-based Colorimetric nucleic acid DEtection), a sensing system for fast and specific naked-eye detection of SARS-CoV-2 RNA.

TL;DR: In this paper , morphology-controlled Cu-Sn alloy nanosheet arrays supported on carbon fiber paper (CP) substrate (Cu-Sn/CP) have been developed by a facile one-step electrodeposition technique at room temperature for the first time.

TL;DR: In this paper , the authors highlight the potential of EC-SERS sensors to be implemented for point-of-need (PON) analyses as miniaturized devices, and their ability to revolutionize fields like quality control, diagnosis or environmental and food safety.

TL;DR: In this article , a new synergistic strategy that combined surface covalent modification and alkaline etching was developed to synthesize hydrophilic hollow zirconium-organic frameworks (HHZr-MOFs) for simultaneous recognition and capture of phospho- and N-glycopeptides.

TL;DR: In this article , the authors designed MoS2 QDs and Eu3+ to construct ratiometric fluorescent probe to detect tetracycline (TC) residues in the environments.

TL;DR: In this article , a signal on-off fluorescence sensor based on the self-assembly DNA tetrahedron was developed for the rapid simultaneous detection of ochratoxin A (OTA) and aflatoxin B1 (AFB1).

TL;DR: In this article , a review of QDs-based ECL bioanalysis by using QDs as ECL emitters, coreactants, or ECL resonance energy transfer donors/acceptors, mainly focused on their optical and electrochemical properties and ECL reaction mechanism is presented.

TL;DR: In this paper , a novel VBN-responsive tag using glutathione capped copper nanoclusters (GSH-CuNCs) aggregates was developed as a fluorescent probe for in situ and real-time visual monitoring of salmon freshness.