Insight of ZnS nanoparticles contribution in different biological uses

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• 作者：Houcine Labiadh¹ ; ^{labiadhhoucine1983@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Karima Lahbib² ; Slah Hidouri³ ; Soufiane Touil² ; Tahar BEN Chaabane¹
• 关键词：Nanoparticles ; Semiconductors ; Antioxidant activity ; Antibacterial activity ; Antifungal activity
• 刊名：Asian Pacific Journal of Tropical Medicine
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：9
• 期：8
• 页码：757-762
• 全文大小：668 K

文摘

To evaluate the contributions of the some quantum dots in different biological uses in order to valorizes such nanomaterials for further applications.

Methods

Zinc sulfide ZnS nanoparticles were synthesized in aqueous medium at pH constant, the obtained nanoparticles has been characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier Transform Infra-red (FTIR) spectroscopies. Zinc sulfide nanoparticles were screened for their antibacterial and antifungal profiling and tested for antioxidant activity using 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl radical (OH^{class="glyphImg imgLazyJSB">}) and hydrogen peroxide (H₂O₂) scavenging activity, ferric reducing power (FRP) assay and ferrous ion chelating (FIC) methods.

Results

The sizes of the crystallites were estimated to 3 nm using the Debye-Scherrer formula based on the XRD data. The shape was identified to be quasi-spherical with agglomerated particles. The obtained ZnS quantum dots present an antioxidant activity especially in oxido-reduction power, and can be used for species profiling either for bacteria and fungus.

Conclusion

It was found that ZnS nanoparticles showed relatively higher antioxidant activities and antibacterial with an antifungal behavior which proves that this nanomaterials can react at the interface with the life entities.