期刊
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
卷 12, 期 3, 页码 389-399出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s40097-021-00422-9
关键词
Sulfur nanoparticles; Kiwi peel extract; Antimicrobial activity; Enhanced dispersion; Aqueous suspension stability
资金
- Brain Pool Program - Ministry of Science, ICT, and Future Planning through the National Research Foundation of Korea [2019H1D3A1A01070715]
- NRF - Korea government (MIST) [2019R1A2C2084221]
- National Research Foundation of Korea [2019R1A2C2084221, 2019H1D3A1A01070715] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The use of kiwifruit peel polyphenols as natural capping agents to cap sulfur nanoparticles resulted in better dispersion and stability in aqueous solutions, as well as a two-fold increase in antibacterial activity.
Sulfur nanoparticles (SNPs) have recently caught the scientific community's attention due to their improved physicochemical attributes compared to the bulk counterparts. However, the SNPs' high hydrophobicity and instability in aqueous solutions have limited their actual application potential. Here, kiwifruit peel polyphenols were used as natural capping agents obtained from agro-waste to cap SNPs. The capped particles were similar to 90 nm in size, smaller than similar to 130 nm for uncapped particles. After capping, the zeta potential value was - 45 mV, which is way better than - 28 mV for uncapped particles indicating better dispersion and stability in the aqueous suspension. The XPS spectra of SNPs confirmed successful capping by organic kiwi peel polyphenols showing intense peaks for C1s and O1s levels. Besides, the SNPs' functionality was also enhanced as they displayed a two-fold increase in antibacterial activity.
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