J 2023

SERS-Tags: Selective Immobilization and Detection of Bacteria by Strain-Specific Antibodies and Surface-Enhanced Raman Scattering

BENEŠOVÁ, M., S. BERNATOVÁ, F. MIKA, Z. POKORNÁ, J. JEŽEK et. al.

Basic information

Original name

SERS-Tags: Selective Immobilization and Detection of Bacteria by Strain-Specific Antibodies and Surface-Enhanced Raman Scattering

Authors

BENEŠOVÁ, M. (203 Czech Republic), S. BERNATOVÁ (203 Czech Republic), F. MIKA (203 Czech Republic), Z. POKORNÁ (203 Czech Republic), J. JEŽEK (203 Czech Republic), M. ŠILER (203 Czech Republic), O. SAMEK (203 Czech Republic), Filip RŮŽIČKA (203 Czech Republic, belonging to the institution), Katarína REBROŠOVÁ (703 Slovakia, belonging to the institution), P. ZEMÁNEK (203 Czech Republic) and Z. PILÁT (203 Czech Republic, guarantor)

Edition

Biosensors, Basel, MDPI, 2023, 2079-6374

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10606 Microbiology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.400 in 2022

RIV identification code

RIV/00216224:14110/23:00134625

Organization unit

Faculty of Medicine

UT WoS

000938961100001

Keywords in English

SERS-tag; Escherichia coli; sandwich immunoassay; single-cell detection

Tags

Tags

International impact, Reviewed
Změněno: 2/5/2023 13:42, Mgr. Tereza Miškechová

Abstract

V originále

Efficient separation and sensitive identification of pathogenic bacterial strains is essential for a prosperous modern society, with direct applications in medical diagnostics, drug discovery, biodefense, and food safety. We developed a fast and reliable method for antibody-based selective immobilization of bacteria from suspension onto a gold-plated glass surface, followed by detection using strain-specific antibodies linked to gold nanoparticles decorated with a reporter molecule. The reporter molecules are subsequently detected by surface-enhanced Raman spectroscopy (SERS). Such a multi-functionalized nanoparticle is called a SERS-tag. The presented procedure uses widely accessible and cheap materials for manufacturing and functionalization of the nanoparticles and the immobilization surfaces. Here, we exemplify the use of the produced SERS-tags for sensitive single-cell detection of opportunistic pathogen Escherichia coli, and we demonstrate the selectivity of our method using two other bacterial strains, Staphylococcus aureus and Serratia marcescens, as negative controls. We believe that the described approach has a potential to inspire the development of novel medical diagnostic tools for rapid identification of bacterial pathogens.

Links

NU21-05-00341, research and development project
Name: Pokročilé metody detekce patogenních mikroorganizmů a hodnocení účinku antimikrobiálních látek Ramanovou spektroskopií a dalšími metodami na úrovni molekul v optofluidních systémech
Investor: Ministry of Health of the CR, Subprogram 1 - standard