Thick nanoporous matrices of polystyrene nanoparticles and their potential for electrochemical biosensing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F21%3A00119678" target="_blank" >RIV/00216224:14740/21:00119678 - isvavai.cz</a>

Alternative codes found

RIV/68081715:_____/21:00539868

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0013468620320004?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0013468620320004?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2020.137607" target="_blank" >10.1016/j.electacta.2020.137607</a>

Result language

angličtina

Original language name

Thick nanoporous matrices of polystyrene nanoparticles and their potential for electrochemical biosensing

Original language description

Solid-state nanopores with diameter in units of nanometer can be formed by assembling spherical nanoparticles in a dense arrangement. In the current work, the properties of multi-layered highly ordered assemblies of polystyrene nanoparticles were studied, and their feasibility for electrochemical biosensing was probed. These thick matrices were built using a step-by-step deposition technique. Each individual layer of NPs exhibited distinct color which was caused by the thin film interference effect (a color of specific wavelength was characteristic for matrix of specific thickness). The electrochemical characteristics of matrices were investigated with impedance spectroscopy. The impedance spectra of multi-layered matrices exhibited formation of an additional semicircle (RC component additional to the one in a common Randles equivalent circuit). Further, model biosensing based on nanopore blocking was performed using human serum albumin as an antigen and the corresponding monoclonal antibody as an analyte (serology format). Resulting data disfavored the direct employment of the multi-layered matrices for biosensing purposes as the efficiency decreased with increasing thickness of matrices. However, the data revealed highly valuable information about the diffusion and redox processes in the thick nanoporous matrices. (C) 2020 Elsevier Ltd. All rights reserved.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Electrochimica Acta

ISSN

0013-4686

e-ISSN

—

Volume of the periodical

368

Issue of the periodical within the volume

FEB

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

137607

UT code for WoS article

000609069000013

EID of the result in the Scopus database

2-s2.0-85098465851