Characterization of tissue conditioner containing chitosan-doped silver nanoparticles
남기영, 이철재,
소속 상세정보
남기영 ( Nam Ki-Young ) - Keimyung University School of Medicine Department of Dentistry
이철재 ( Lee Chul-Jae ) - Yeungnam College of Science and Technology Division of Cosmetics Chemistry
Abstract
Purpose: Development of a latent antimicrobial soft liner is strongly needed to overcome a possible inflammation related with its dimensional degrade or surface roughness. Modified tissue conditioner (TC) containing chitosan-doped silver nanoparticles (ChSN) complexes were synthesized and assessed for their characterizations.
Materials and methods: ChSN were preliminarily synthesized from silver nitrate (AgNO3), sodium borohydride (NaBH4) as a reducing agent and chitosan biopolymer as a capping agent. Ultraviolet-visible and Fourier transform infrared spectroscopy were conducted to confirm the stable reduction of nanoparticles with chitosan. Modified TC blended with ChSN by 0 (control), 1.0, 3.0 and 5.0 % mass fraction were mechanically tested by ultimate tensile strength (UTS), silver ion elution and color stability (n=7).
Results: At 24 hour and 7 day storage periods, UTS values were not significant (P>.05) as compared with pristine TC (control) and silver ion was detected with the dose-dependent values of ChSN incorporated. Color stability of TC were influenced by ChSN add, with the higher doses, the significantly greater color changes (P<.05).
Conclusion: A stable synthesized ChSN was acquired and modified TC loading ChSN was characterized as silver ion releasing without detrimental physical property. For its clinical application, antimicrobial test, color control and multifactor investigations are still required.
키워드
Characterization; Chitosan; Silver nanoparticles; Tissue conditioner
원문 및 링크아웃 정보
등재저널 정보