J Korean Acad Prosthodont.  2020 Oct;58(4):275-281. 10.4047/jkap.2020.58.4.275.

Characterization of tissue conditioner containing chitosan-doped silver nanoparticles

• Nam KY
• Lee CJ

• KMID: 2508356
• DOI: http://doi.org/10.4047/jkap.2020.58.4.275

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.

Keyword

Characterization; Chitosan; Silver nanoparticles; Tissue conditioner