Biosilica-nanogold composite: Easy-to-prepare catalyst for soman degradation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F19%3A10236589" target="_blank" >RIV/61989100:27640/19:10236589 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/19:10401455 RIV/61989100:27740/19:10236589

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1878535217301508" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1878535217301508</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.arabjc.2017.08.003" target="_blank" >10.1016/j.arabjc.2017.08.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Biosilica-nanogold composite: Easy-to-prepare catalyst for soman degradation

Popis výsledku v původním jazyce

A very fast single-step biosynthesis of gold nanoparticles (AuNPs) using algal cells of Mallomonas kalinae (MK) is introduced. The average particle size of crystalline AuNPs was approximately 10 nm. Subsequently, the catalytic activity of two systems - MK-biosilica scales and MK-biosilica scales with AuNPs - was compared with a control hydrolysis of soman (GD) performed in demineralized water. The kinetics of GD degradation was studied using a gas chromatography with mass detector (GC-MS) and solid-phase microextraction. The residual content of GD was 3.8% and 3.5% for both initial concentrations of GD (68 µg mLMINUS SIGN 1 and 340 µg mLMINUS SIGN 1, respectively) after 48 h of testing when nanogold was used as a catalyst. Experimental results confirmed the catalytic activity of biosynthesized AuNPs, as well as the role of biosilica itself in the degradation of GD.

Název v anglickém jazyce

Biosilica-nanogold composite: Easy-to-prepare catalyst for soman degradation

Popis výsledku anglicky

A very fast single-step biosynthesis of gold nanoparticles (AuNPs) using algal cells of Mallomonas kalinae (MK) is introduced. The average particle size of crystalline AuNPs was approximately 10 nm. Subsequently, the catalytic activity of two systems - MK-biosilica scales and MK-biosilica scales with AuNPs - was compared with a control hydrolysis of soman (GD) performed in demineralized water. The kinetics of GD degradation was studied using a gas chromatography with mass detector (GC-MS) and solid-phase microextraction. The residual content of GD was 3.8% and 3.5% for both initial concentrations of GD (68 µg mLMINUS SIGN 1 and 340 µg mLMINUS SIGN 1, respectively) after 48 h of testing when nanogold was used as a catalyst. Experimental results confirmed the catalytic activity of biosynthesized AuNPs, as well as the role of biosilica itself in the degradation of GD.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Projekt

<a href="/cs/project/ED1.1.00%2F02.0109" target="_blank" >ED1.1.00/02.0109: Biotechnologické a biomedicínské centrum Akademie věd a Univerzity Karlovy</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Arabian Journal of Chemistry

ISSN

1878-5352

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

262-271

Kód UT WoS článku

000456822900010

EID výsledku v databázi Scopus

2-s2.0-85028365085