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A new, simple, green, and one-pot four-component synthesis of bare and poly(α,γ,l-glutamic acid)-capped silver nanoparticles

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2012
paper752-484.pdf (953.1Kb)
Аутори
Stevanović, Magdalena
Savanović, Igor
Uskoković, Vuk
Škapin, Srečo Davor
Bračko, Ines
Jovanović, Uroš
Uskoković, Dragan
Чланак у часопису
Метаподаци
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Апстракт
A simple and green chemical method has been developed to synthesize stable bare and capped silver nanoparticles based on the reduction of silver ions by glucose and capping by poly(α,γ,l-glutamic acid) (PGA). The use of ammonia during synthesis was avoided. PGA has had a dual role in the synthesis and was used as a capping agent to make the silver nanoparticle more biocompatible and to protect the nanoparticles from agglomerating in the liquid medium. The synthesized PGA-capped silver nanoparticles in the size range 5–45 nm were stable over long periods of time, without signs of precipitation. Morphological examination has shown that the silver nanoparticles had a nearly spherical, multiply twinned structure. The effects of the reaction temperature and the reaction time during the synthesis were investigated too. The biocompatibility of the PGA-capped silver nanoparticles is discussed in terms of in vitro toxicity with human intestinal Caco-2 cells. The samples were characterized by UV...–Visible spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, and zeta potential measurements.

Кључне речи:
poly(α,γ,l-glutamic acid) / silver nanoparticles
Извор:
Colloid and Polymer Science, 2012, 221-231
Издавач:
  • Springer-Verlag
Пројекти:
  • Молекуларно дизајнирање наночестица контролисаних морфолошких и физичко-хемијских карактеристика и функционалних материјала на њиховој основи (RS-45004)
  • NIH grant K99-DE021416

DOI: 10.1007/s00396-011-2540-7

ISSN: 0303-402X (Print) 1435-1536 (Online)

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URI
http://dais.sanu.ac.rs/123456789/487
http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/752
Колекције
  • Glavna kolekcija
Институција
Институт техничких наука САНУ

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