4-Mercaptophenylboronic acid-induced in situ formation of silver nanoparticle aggregates as labels on an electrode surface

Xia, Ning; Liu, Lin; Chang, Yong Keun; Hao, Yuanqiang; Wang, Xiaojin

doi:10.1016/j.elecom.2016.11.013

Cited by 32 publications

(5 citation statements)

References 42 publications

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“…The UV–Vis absorption spectrum of Ag (AMPSA) NPs presented in Fig. 1(a) demonstrates a strong absorption peak at 390 nm, which is ascribed to the surface plasmon resonance (SPR) of Ag NPs 11,12 . The shape of the plasmon band is symmetrical and narrow confirming that Ag (AMPSA) NPs have a narrow size distribution 13 .…”

Section: Resultsmentioning

confidence: 99%

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Shokry

Khalil

Ibrahim

et al. 2019

Sci Rep

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Quantum dots (QDs) with photostability show a potential application in optical sensing and biological imaging. In this work, ternary nanocomposite (NC) of high fluorescent polyaniline (PANI)/2-acrylamido-2-methylpropanesulfonic acid (AMPSA) capped silver nanoparticles (NPs)/graphene oxide quantum dots (PANI/Ag (AMPSA)/GO QDs) have been synthesized by in situ chemical oxidative polymerization of aniline in the presence of Ag (AMPSA) NPs and GO QDs. Ag (AMPSA) NPs and GO QDs were prepared by AgNO3 chemical reduction and glucose carbonization methods, respectively. The prepared materials were characterized using UV-visible, Fourier transform infrared (FTIR), photoluminescence and Raman spectroscopies, X-Ray diffractometer (XRD) and high- resolution transmission electron microscopy (HRTEM). HRTEM micrographs confirmed the preparation of GO QDs with an average size of 15 nm and Ag (AMPSA) NPs with an average size of 20 nm. PANI/Ag (AMPSA)/GO QDs NC showed high and stable emission peak at 348 nm. This PANI/Ag (AMPSA)/GO QDs NC can emerge as a new class of fluorescence materials that could be suitable for practical sensing applications.

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Section: Resultsmentioning

confidence: 99%

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Shokry

Khalil

Ibrahim

et al. 2019

Sci Rep

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“…[47][48][49][50][51][52][53][54][55][56][57][58][59] In particular, silver nanoparticles (AgNPs) offer clear advantages for the design of electrochemical (bio) sensors, such as a simple preparation procedure, a size-dependent optical property, facile surface modification, a high surface area and a low oxidation potential. [55][56][57][58][59] Based on the specific Aβ oligomer/PrP 95-110 interaction and the well-defined and signal-amplified electrochemical signal of AgNP aggregates, Xia et al 59 have developed an electrochemical biosensor for the determination of Aβ oligomer by using adamantine …”

Section: Introductionmentioning

confidence: 99%

A sensitive and selective electrochemical biosensor for the determination of beta-amyloid oligomer by inhibiting the peptide-triggered in situ assembly of silver nanoparticles

Xing¹,

Feng²,

Zhang³

et al. 2017

IJN

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Soluble beta-amyloid (Aβ) oligomer is believed to be the most important toxic species in the brain of Alzheimer’s disease (AD) patients. Thus, it is critical to develop a simple method for the selective detection of Aβ oligomer with low cost and high sensitivity. In this paper, we report an electrochemical method for the detection of Aβ oligomer with a peptide as the bioreceptor and silver nanoparticle (AgNP) aggregates as the redox reporters. This strategy is based on the conversion of AgNP-based colorimetric assay into electrochemical analysis. Specifically, the peptide immobilized on the electrode surface and presented in solution triggered together the in situ formation of AgNP aggregates, which produced a well-defined electrochemical signal. However, the specific binding of Aβ oligomer to the immobilized peptide prevented the in situ assembly of AgNPs. As a result, a poor electrochemical signal was observed. The detection limit of the method was found to be 6 pM. Furthermore, the amenability of this method for the analysis of Aβ oligomer in serum and artificial cerebrospinal fluid (aCSF) samples was demonstrated.

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“…The strategy based on MPBA-induced in-situ formation of AgNP aggregates on the electrode surface was further used to detect glycoproteins and enzymes [ 131 , 132 ]. For instance, Xia et al reported electrochemical bioassays of tyrosinase and protease (thrombin) based on the MPBA-induced in-situ formation of AgNPs aggregates [ 133 ]. As displayed in Figure 6 B, tyrosinase could catalyze the hydroxylation of tyrosine residue in the peptide modified on the electrode surface.…”

Section: Boronate-affinity-based Electrochemical Biosensorsmentioning

confidence: 99%

“…Copyright 2017, Elsevier. ( B ) Schematic illustration of the proposed electrochemical strategy for tyrosinase and protease detection based on MPBA-induced in situ formation of AgNPs aggregates as labels [ 133 ]. Copyright 2017, Elsevier.…”

Section: Boronate-affinity-based Electrochemical Biosensorsmentioning

confidence: 99%

Biosensors with Boronic Acid-Based Materials as the Recognition Elements and Signal Labels

Liu

Chang

et al. 2023

Biosensors

Self Cite

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It is of great importance to have sensitive and accurate detection of cis-diol-containing biologically related substances because of their important functions in the research fields of metabolomics, glycomics, and proteomics. Boronic acids can specifically and reversibly interact with 1,2- or 1,3-diols to form five or six cyclic esters. Based on this unique property, boronic acid-based materials have been used as synthetic receptors for the specific recognition and detection of cis-diol-containing species. This review critically summarizes the recent advances with boronic acid-based materials as recognition elements and signal labels for the detection of cis-diol-containing biological species, including ribonucleic acids, glycans, glycoproteins, bacteria, exosomes, and tumor cells. We also address the challenges and future perspectives for developing versatile boronic acid-based materials with various promising applications.

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4-Mercaptophenylboronic acid-induced in situ formation of silver nanoparticle aggregates as labels on an electrode surface

Cited by 32 publications

References 42 publications

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

A sensitive and selective electrochemical biosensor for the determination of beta-amyloid oligomer by inhibiting the peptide-triggered in situ assembly of silver nanoparticles

Biosensors with Boronic Acid-Based Materials as the Recognition Elements and Signal Labels

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