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2021, vol. 76, br. 2, str. 137-143
Uticaj stabilizatora na fizičkohemijska svojstva nanočestica selena dobijenih hemijskom redukcijom
Srpska akademija nauke i umetnosti (SANU), Institut tehničkih nauka, Beograd

e-adresanenad.filipovic@itn.sanu.ac.rs
Projekat:
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije (institucija: Institut tehničkih nauka SANU, Beograd) (MPNTR - 451-03-68/2020-14/200175)

Ključne reči: nanočestice selena; nanotehnologija; sinteza nanočestica; karakterizacija nanočestica
Sažetak
Nanočestice selena (SeNPs) su specifična forma ovog elementa koja je u poslednje vreme postala predmet brojnih istraživanja, pogotovo u oblasti biomedicine. Do sada je razvijeno više metoda sinteze SeNPs, među kojima se najčešće koriste one koje podrazumevaju redukciju iz njegovih jedinjenja. U ovom radu ispitan je uticaj dva stabilizatora na morfologiju, veličinu i kristalno uređenje SeNPs dobijenih redukcijom natrijum selenita askorbinskom kiselinom. Kao stabilizatori SeNPs korišćeni su goveđi serum albumin (BSA) ili poliglutaminska kiselina (PGA). Na osnovu rezultata dobijenih metodama skenirajuće elektronske mikroskopije (FESEM), transmisione elektronske mikroskopije (TEM), energetske disperzione spektroskopije (EDS), elektronske difrakcije sa selektovane površine (SAED) i merenjem zeta potencijala, utvrđeno je da mehanizam stabilizacije tj. izbor stabilizatora može prouzrokovati različito kristalno uređenje unutar SeNPs. BSA se pokazao kao efikasniji stabilizator jer omogućuje dobijanje uniformnijih, manjih i amorfnih nanočestica selena.
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O članku

jezik rada: srpski
vrsta rada: izvorni naučni članak
DOI: 10.5937/tehnika2102137F
primljen: 06.04.2021.
prihvaćen: 09.04.2021.
objavljen u SCIndeksu: 07.05.2021.
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