Silver nanoparticles stabilised with cationic single-chain surfactants. Structure-physical properties-biological activity relationship study
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F18%3APU144065" target="_blank" >RIV/00216305:26310/18:PU144065 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:000451494700008" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:000451494700008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molliq.2018.09.042" target="_blank" >10.1016/j.molliq.2018.09.042</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Silver nanoparticles stabilised with cationic single-chain surfactants. Structure-physical properties-biological activity relationship study
Popis výsledku v původním jazyce
Increasing number of biological applications of silver nanoparticles requires a detailed determination of the relationship between nanoparticle structure and its physical and biological properties. In this paper, synthesis, measurements of nanoparticle size and zeta potential and some biological activities of silver nanoparticles stabilised with single-chain cationic surfactants are provided. The main goal of the study is the investigation of the relationship between molecular structure of stabilising agent, physicochemical properties and biological activity of cationic surfactant-stabilised silver nanoparticles. Two structural features, heterocyclic character of hydrophilic part of surfactant molecule and hydrophobicity change of its substituents, were correlated with synthesis, stability and biological activity of silver nanoparticles. Substituted ammonium, pyridinium and piperidinium surfactants were selected as stabilisers of silver nanoparticles. It was found that nanoparticle stabilising effect is improved by increasing the length of hydrophobic substituents on the ammonium polar head which results in the formation of nanoparticles small in size and with sufficiently positive zeta potential. Application of dibutylsubstituted ammonium surfactant molecules resulted in the formation of small silver nanoparticles in the size range 25-30 nm and a zeta potential of +60 mV. Aromatic pyridinium surfactant molecules provide slightly better stabilisation than saturated piperidinium surfactants. Surfactant-stabilised silver nanoparticles were antimicrobially efficient against Gram-positive pathogens and yeast. The highest cytotoxic activity was determined for silver nanoparticles stabilised with dibutyl-substituted ammonium surfactant and pyridinium surfactant which corresponds with small and charged nanoparticles formed by using these surfactants. Maximum cytotoxic activity was found in the surfactant concentration range 16-25 mu M. (C) 2018 Published by Elsevier B.V.
Název v anglickém jazyce
Silver nanoparticles stabilised with cationic single-chain surfactants. Structure-physical properties-biological activity relationship study
Popis výsledku anglicky
Increasing number of biological applications of silver nanoparticles requires a detailed determination of the relationship between nanoparticle structure and its physical and biological properties. In this paper, synthesis, measurements of nanoparticle size and zeta potential and some biological activities of silver nanoparticles stabilised with single-chain cationic surfactants are provided. The main goal of the study is the investigation of the relationship between molecular structure of stabilising agent, physicochemical properties and biological activity of cationic surfactant-stabilised silver nanoparticles. Two structural features, heterocyclic character of hydrophilic part of surfactant molecule and hydrophobicity change of its substituents, were correlated with synthesis, stability and biological activity of silver nanoparticles. Substituted ammonium, pyridinium and piperidinium surfactants were selected as stabilisers of silver nanoparticles. It was found that nanoparticle stabilising effect is improved by increasing the length of hydrophobic substituents on the ammonium polar head which results in the formation of nanoparticles small in size and with sufficiently positive zeta potential. Application of dibutylsubstituted ammonium surfactant molecules resulted in the formation of small silver nanoparticles in the size range 25-30 nm and a zeta potential of +60 mV. Aromatic pyridinium surfactant molecules provide slightly better stabilisation than saturated piperidinium surfactants. Surfactant-stabilised silver nanoparticles were antimicrobially efficient against Gram-positive pathogens and yeast. The highest cytotoxic activity was determined for silver nanoparticles stabilised with dibutyl-substituted ammonium surfactant and pyridinium surfactant which corresponds with small and charged nanoparticles formed by using these surfactants. Maximum cytotoxic activity was found in the surfactant concentration range 16-25 mu M. (C) 2018 Published by Elsevier B.V.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
JOURNAL OF MOLECULAR LIQUIDS
ISSN
0167-7322
e-ISSN
1873-3166
Svazek periodika
272
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
13
Strana od-do
60-72
Kód UT WoS článku
000451494700008
EID výsledku v databázi Scopus
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