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紫外光下明胶稳定的银纳米颗粒的制备与表征

Fabrication and characterization of gelatin stabilized silver nanoparticles under UV-light.

作者信息

Darroudi Majid, Ahmad Mansor B, Zak Ali Khorsand, Zamiri Reza, Hakimi Mohammad

机构信息

Department of Chemistry, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; E-Mail:

出版信息

Int J Mol Sci. 2011;12(9):6346-56. doi: 10.3390/ijms12096346. Epub 2011 Sep 23.

DOI:10.3390/ijms12096346
PMID:22016663
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3189787/
Abstract

Silver nanoparticles (Ag-NPs) were successfully synthesized using the UV irradiation of aqueous solutions containing AgNO(3) and gelatin as a silver source and stabilizer, respectively. The UV irradiation times influence the particles' diameter of the Ag-NPs, as evidenced from surface plasmon resonance (SPR) bands and transmission electron microscopy (TEM) images. When the UV irradiation time was increased, the mean size of particles continuously decreased as a result of photoinduced Ag-NPs fragmentation. Based on X-ray diffraction (XRD), the UV-irradiated Ag-NPs were a face-centered cubic (fcc) single crystal without any impurity. This study reveals that the UV irradiation-mediated method is a green chemistry and promising route for the synthesis of stable Ag-NPs for several applications (e.g., medical and surgical devices). The important advantages of this method are that it is cheap, easy, and free of toxic materials.

摘要

分别以硝酸银和明胶作为银源和稳定剂，通过对含硝酸银和明胶的水溶液进行紫外线照射，成功合成了银纳米颗粒（Ag-NPs）。表面等离子体共振（SPR）谱带和透射电子显微镜（TEM）图像表明，紫外线照射时间会影响Ag-NPs的粒径。随着紫外线照射时间的增加，由于光诱导Ag-NPs碎片化，颗粒的平均尺寸持续减小。基于X射线衍射（XRD），紫外线照射的Ag-NPs为面心立方（fcc）单晶，无任何杂质。该研究表明，紫外线照射介导的方法是一种绿色化学方法，是合成适用于多种应用（如医疗和外科器械）的稳定Ag-NPs的有前景的途径。该方法的重要优点是成本低、操作简便且无毒。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/09db/3189787/6ba49cc4a1b5/ijms-12-06346f7.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/09db/3189787/e0c16ad06f0c/ijms-12-06346f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/09db/3189787/8e10b8d7407f/ijms-12-06346f3.jpg
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