Comparison of different methods for evaluating the antimicrobial activity of geopolymer composites containing metal microparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F24%3A00011412" target="_blank" >RIV/46747885:24210/24:00011412 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/nanocon/2023/read/4752-comparison-of-different-methods-for-evaluating-the-antimicrobial-activity-of-geopolymer-composites-containing-metal-microparticles.pdf" target="_blank" >https://www.confer.cz/nanocon/2023/read/4752-comparison-of-different-methods-for-evaluating-the-antimicrobial-activity-of-geopolymer-composites-containing-metal-microparticles.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2023.4752" target="_blank" >10.37904/nanocon.2023.4752</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of different methods for evaluating the antimicrobial activity of geopolymer composites containing metal microparticles

Popis výsledku v původním jazyce

This paper investigates the antimicrobial effect of geopolymer composites with metal microparticles (metal powder). The geopolymer matrix was modified with silver, copper, or nickel microparticles in the concentration of 1, 2, 3, or 4 %. The indirect observation included the leaching test, the Kirby-Bauer method, and the cultivating bacteria in a bioreactor with a geopolymer. The direct observation and analysis of bacterial growth were based on the print bacteria from the geopolymer surface on an agar plate or fluorescence assessment of bacterial viability with microscopy (so-called LIVE/DEAD™ BacLight™ bacterial viability Kit). Two types of bacteria cells were tested, Escherichia coli (gram-negative) and Micrococcus luteus (gram-positive). Our study aims to verify and compare different geopolymer composites‘ antimicrobial activity methodologies. Moreover, we uncovered the influence of the metal microparticle concentration (1-4%) as an additive in the geopolymer matrix.

Název v anglickém jazyce

Comparison of different methods for evaluating the antimicrobial activity of geopolymer composites containing metal microparticles

Popis výsledku anglicky

This paper investigates the antimicrobial effect of geopolymer composites with metal microparticles (metal powder). The geopolymer matrix was modified with silver, copper, or nickel microparticles in the concentration of 1, 2, 3, or 4 %. The indirect observation included the leaching test, the Kirby-Bauer method, and the cultivating bacteria in a bioreactor with a geopolymer. The direct observation and analysis of bacterial growth were based on the print bacteria from the geopolymer surface on an agar plate or fluorescence assessment of bacterial viability with microscopy (so-called LIVE/DEAD™ BacLight™ bacterial viability Kit). Two types of bacteria cells were tested, Escherichia coli (gram-negative) and Micrococcus luteus (gram-positive). Our study aims to verify and compare different geopolymer composites‘ antimicrobial activity methodologies. Moreover, we uncovered the influence of the metal microparticle concentration (1-4%) as an additive in the geopolymer matrix.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

15th International Conference on Nanomaterials - Research & Application

ISBN

978-80-88365-15-0

ISSN

2694-930X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

100-105

Název nakladatele

TANGER Ltd.

Místo vydání

OSTRAVA 710 00, CZECH REPUBLIC

Místo konání akce

Brno

Datum konání akce

1. 1. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001234125400016