维普期刊资源整合服务平台（V6.5）

维普中文期刊产品整合服务

4篇 您的检索式：作者名="Shiva Gupta"

选中清除导出查看参考文献查看引证文献引用追踪共1页首页上一页第1页下一页末页 /1 跳转

		题名	作者	年代	出处	被引量
	1	Mesoporous Ag nanocubes synthesized via selectively oxidative etching at room temperature for surface- enhanced Raman spectroscopy显示文摘Silver nanocubes enriched with {100} facets have been extensively used for surface-enhanced Raman scattering. Herein, we report a new water-phase synthesis method for weU-defined Ag nanocubes with tunable sizes via a two-step procedure at room temperature. First, irregularly shaped Ag nanoparticles (INPs) were prepared by reducing silver ammonia solution using ethylal. Second, the agglomerated INPs were selectively etched with HNO3 and C1- to yield {100} facet-rich mesoporous Ag nanocubes. The mechanism of Ag-nanocube formation and growth was investigated in detail by elucidating the involved chemical reactions and physical changes at each step during the synthesis. The addition of C1- anions was responsible for facilitating Ag nanoparticle growth by removing surface-adsorbed Ag+ species, thereby eliminating inter-particle repulsive forces. This agglomeration was found crucial for the subsequent selective oxidation of Ag nanoparticles because the protective agent used, polyvinylpyrrolidone (PVP), was the most effective one for adsorption on the surfaces of Ag nanoparticles of size greater than approximately 50 nm. Importantly mesopores were found inside the Ag nanocubes; this can be attributed to the unavoidable imperfect packing during the agglomeration of INPs. The newly prepared Ag nanocubes were further used to enhance the Raman signal of rhodamine 6G, which is capable of reducing the detection limitation to 10-16 mol·L-1.	Lin Gan Meijia Yang Xi Ke Guofeng Cui Xudong Chen Shiva Gupta William Kellogg Drew Higgins Gang Wu	2015	Nano Research2015，8，7：	4
	2	Microbial pectinolytic enzymes: a review 显示文摘	Ranveer Singh Jayani Shiva/ika Saxena Reena Gupta	2005	Process Bio- Chemistry2005，40，：	1
	3	Mercury selective electrochemical sensor based on a double armed crown ether as ionophore 显示文摘	Gupta Vinod K Sudeshna Chandra Shiva Agarwal	2003	INDIAN JOURNAL OF CHEMISTRY SECTION A2003，42，4：	1
	4	Staging, surveillance, and evaluation of response to therapy in renal cell carcinoma: role of MDCT显示文摘	Dhakshinamoorthy Ganeshan Ajay Morani Harshad Ladha Tharakeshwar Bathala Hyunseon Kang Shiva Gupta Neeraj Lalwani Vikas Kundra	2014	Abdominal Imaging2014，，1：	1

返回顶部每页显示：

共1页首页上一页第1页下一页末页 /1 跳转

goolge学术搜索-维普

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费