Colorimetric Sensor Array Based on Wulff-Type Boronate Functionalized AgNPs at Various pH for Bacteria Identification

Yan, Peng; Ding, Zhi; Li, Xizhe; Dong, Yanhua; Fu, Tao; Wu, Yayan

doi:10.1021/acs.analchem.9b03172

Cited by 69 publications

(50 citation statements)

References 24 publications

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“…As a conventional achiral chemical‐capturing molecule, MPBA undergoes pH‐dependent structural changes, which produces different SERS spectral patterns of MPBA under different pH conditions (Supporting Information, Figure S13 A). It is necessary to investigate the SERS spectra of the mixed‐thiol SAMs on the Au NRs arrays in solution at pH levels ranging from 1 to 13 to elucidate at which pH the chiral discrimination sensing system displays optimal discrimination performance.…”

Section: Resultsmentioning

confidence: 99%

A Chiral‐Label‐Free SERS Strategy for the Synchronous Chiral Discrimination and Identification of Small Aromatic Molecules

Wang

Zhao

et al. 2020

Angewandte Chemie

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Aversatile and robust chiral discrimination strategy for small aromatic compounds is of significant importance in multidisciplinary fields.H owever,m ost current methods lack either the sufficient sensitivity for recognizing the chirality of the target molecules or their molecular specificity information. We have developed av ersatile and chiral-label-free surfaceenhanced Raman scattering (SERS)-based chiral discrimination sensing system for small aromatic molecules,w here the molecular structural specificity and enantioselectivity can be given synchronously in asingle SERS spectrum. More than 10 types of chiral aromatic molecules were successfully identified by using this system. This work has enormous potential for recognizing chiral products effectively in sophisticated systems, especially in the fields of chiral synthesis and chiral catalysis.

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Section: Resultsmentioning

confidence: 99%

A Chiral‐Label‐Free SERS Strategy for the Synchronous Chiral Discrimination and Identification of Small Aromatic Molecules

Wang

Zhao

et al. 2020

Angewandte Chemie

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“…In recent years, with the development of sensor arrays, it has become possible to detect and determine bacteria simultaneously [ 296 , 297 , 298 , 299 , 300 ]. The detection mechanism is based on changes in the optical or electrical properties of the indicator after the interaction with bacteria or metabolites emitted from the bacterial growth.…”

Section: Application Of Paper Biosensors In the Detection Of Toxic Materialsmentioning

confidence: 99%

Disposable Paper-Based Biosensors for the Point-of-Care Detection of Hazardous Contaminations—A Review

Bordbar

Sheini

Hashemi³

et al. 2021

Biosensors

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The fast detection of trace amounts of hazardous contaminations can prevent serious damage to the environment. Paper-based sensors offer a new perspective on the world of analytical methods, overcoming previous limitations by fabricating a simple device with valuable benefits such as flexibility, biocompatibility, disposability, biodegradability, easy operation, large surface-to-volume ratio, and cost-effectiveness. Depending on the performance type, the device can be used to analyze the analyte in the liquid or vapor phase. For liquid samples, various structures (including a dipstick, as well as microfluidic and lateral flow) have been constructed. Paper-based 3D sensors are prepared by gluing and folding different layers of a piece of paper, being more user-friendly, due to the combination of several preparation methods, the integration of different sensor elements, and the connection between two methods of detection in a small set. Paper sensors can be used in chromatographic, electrochemical, and colorimetric processes, depending on the type of transducer. Additionally, in recent years, the applicability of these sensors has been investigated in various applications, such as food and water quality, environmental monitoring, disease diagnosis, and medical sciences. Here, we review the development (from 2010 to 2021) of paper methods in the field of the detection and determination of toxic substances.

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“…The covalent complexes form at a high pH value (basic) and are dissociated at a low pH value (acidic). [28,29] Wu et al [30] reported a sensor array for bacterial detection at various pH values using MPBA-mercaptoethylamine (MA)-cofunctionalized AgNPs (Figure 1B). In this research, Wulff-type boronate that has amines adjacent to boronic acid was selected as the recognition molecule.…”

Section: Boronic Acid With Cis-diol Group Of Saccharidementioning

confidence: 99%

Array‐Based Biosensors for Bacteria Detection: From the Perspective of Recognition

Xianyu

2021

Small

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Array‐based biosensors have shown as effective and powerful tools to distinguish intricate mixtures with infinitesimal differences among analytes such as nucleic acids, proteins, microorganisms, and other biomolecules. In array‐based bacterial sensing, the recognition of bacteria is the initial step that can crucially influence the analytical performance of a biosensor array. Bacteria recognition as well as the signal readout and mathematical analysis are indispensable to ensure the discrimination ability of array‐based biosensors. Strategies for bacteria recognition mainly include the specific interaction between biomolecules and the corresponding receptors on bacteria, the noncovalent interaction between materials and bacteria, and the specific targeting of bacterial metabolites. In this review, recent advances in array‐based bacteria sensors are discussed from the perspective of bacteria recognition relying on the characteristics of different bacteria. Principles of bacteria recognition and signal readout for bacteria detection are highlighted as well as the discussion on future trends in array‐based biosensors.

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Colorimetric Sensor Array Based on Wulff-Type Boronate Functionalized AgNPs at Various pH for Bacteria Identification

Cited by 69 publications

References 24 publications

A Chiral‐Label‐Free SERS Strategy for the Synchronous Chiral Discrimination and Identification of Small Aromatic Molecules

A Chiral‐Label‐Free SERS Strategy for the Synchronous Chiral Discrimination and Identification of Small Aromatic Molecules

Disposable Paper-Based Biosensors for the Point-of-Care Detection of Hazardous Contaminations—A Review

Array‐Based Biosensors for Bacteria Detection: From the Perspective of Recognition

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