About: Silver Nanoparticles Modified by Gelatin with Extraordinary pH Stability and Long-Term Antibacterial Activity

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About: Silver Nanoparticles Modified by Gelatin with Extraordinary pH Stability and Long-Term Antibacterial Activity Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0103675
Description	Stability of silver nanoparticles (AgNPs) against aggregation is main application parameter because a correlation between size and biological activity has been demonstrated. In the present work, a natural stabilizer, gelatin, was investigated for the stabilization of AgNPs in an aqueous dispersion. The particles were prepared via a modified Tollens process, and the gelatin modifier was added prior to the reducing agent. The stability against aggregation of the AgNPs prepared by this method was more than one order of magnitude higher (on the basis of the critical coagulation concentration (CCC)) than that of AgNPs prepared via a similar method but without the assistance of gelatin. Their high stability against aggregation was confirmed over wide pH range (from 2 to 13) in which the particles did not exhibit rapid aggregation; such stability has not been previously reported for AgNPs. Moreover, the gelatin-stabilized AgNPs exhibited long-term stability against aggregation and maintained high antibacterial activity when stored for several months under ambient conditions. Stability of silver nanoparticles (AgNPs) against aggregation is main application parameter because a correlation between size and biological activity has been demonstrated. In the present work, a natural stabilizer, gelatin, was investigated for the stabilization of AgNPs in an aqueous dispersion. The particles were prepared via a modified Tollens process, and the gelatin modifier was added prior to the reducing agent. The stability against aggregation of the AgNPs prepared by this method was more than one order of magnitude higher (on the basis of the critical coagulation concentration (CCC)) than that of AgNPs prepared via a similar method but without the assistance of gelatin. Their high stability against aggregation was confirmed over wide pH range (from 2 to 13) in which the particles did not exhibit rapid aggregation; such stability has not been previously reported for AgNPs. Moreover, the gelatin-stabilized AgNPs exhibited long-term stability against aggregation and maintained high antibacterial activity when stored for several months under ambient conditions. (en)
Title	Silver Nanoparticles Modified by Gelatin with Extraordinary pH Stability and Long-Term Antibacterial Activity Silver Nanoparticles Modified by Gelatin with Extraordinary pH Stability and Long-Term Antibacterial Activity (en)
skos:prefLabel	Silver Nanoparticles Modified by Gelatin with Extraordinary pH Stability and Long-Term Antibacterial Activity Silver Nanoparticles Modified by Gelatin with Extraordinary pH Stability and Long-Term Antibacterial Activity (en)
skos:notation	RIV/61989592:15110/14:33152113!RIV15-TA0-15110___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0058), P(EE2.3.20.0056), P(TA03010799), S
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Večeřová, Renata
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Lékařská fakulta
http://linked.open...dnocenehoVysledku	44864
http://linked.open...ai/riv/idVysledku	RIV/61989592:15110/14:33152113
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	size; gelatin; polymers; bionanocomposites; stability; green synthesis (en)
http://linked.open.../riv/klicoveSlovo	green synthesis polymers gelatin bionanocomposites stability size
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[9387E0C3B765]
http://linked.open...i/riv/nazevZdroje	PLoS One
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Building of research and education team in regional center of advanced technology and materials. Regional Centre of Advanced Technologies and Materials Use of nanostructures and natural extracts as functional substances in active packaging materials with barrier, antimicrobial, protective and oxygen absorbing effects
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	9
http://linked.open...iv/tvurceVysledku	Kvítek, Libor Panáček, Aleš Prucek, Robert Soukupová, Jana Zbořil, Radek Večeřová, Renata Sivera, Martin
http://linked.open...ain/vavai/riv/wos	000339995100024
issn	1932-6203
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1371/journal.pone.0103675
http://localhost/t...ganizacniJednotka	15110

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