| 银纳米颗粒的合成及其与曙红Y的相互作用 |
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| 引用本文： | 李远刚,李华静,马小单,韦萍.银纳米颗粒的合成及其与曙红Y的相互作用[J].理化检验(化学分册),2011(9). |
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| 作者姓名： | 李远刚 李华静 马小单 韦萍 |
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| 作者单位： | 西安科技大学化学与化工学院; |
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| 基金项目： | 国家自然科学基金(20943001)资助项目; 陕西省教育厅科研计划(09JK576)项目 |
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| 摘 要： | 分别制备了以L-半胱氨酸(L-cyst.)或以巯基乙酸(TGA)保护的银纳米颗粒,并用紫外-可见分光光度法和透射电子显微技术(TEM)对两种不同状态的银纳米颗粒的结构作了表征。由其吸收光谱图显示,L-cyst.和TGA保护的银纳米颗粒的吸收峰依次位于384 nm和392 nm波长处;由TEM的检测结果表明:上述2种形态银纳米颗粒的粒度大小依次在10~40 nm和20~30 nm范围内。试验中发现,以L-cyst.保护的银纳米颗粒与曙红Y之间有明显的相互作用,导致其吸收峰从384 nm红移至395 nm;以TGA保护的银纳米颗粒与曙红Y之间未见有相互反应。初步探讨了其作用机理,认为系由于结合于银纳米颗粒表面的L-半胱氨酸分子所带的正电荷与曙红Y分子上的负电荷之间的静电作用的结果。
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| 关 键 词： | 银纳米颗粒 L-半胱氨酸 巯基乙酸 曙红Y 相互作用 |
Preparation of Silver Nanoparticles and its Interaction with Eosin Y |
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| LI Yuan-gang,LI Hua-jing,MA Xiao-dan,WEI Ping.Preparation of Silver Nanoparticles and its Interaction with Eosin Y[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(9). |
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| Authors: | LI Yuan-gang LI Hua-jing MA Xiao-dan WEI Ping |
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| Abstract: | Silver nanoparticles were prepared under the protection of either L-cysteine(L-cyst.) or thioglycollic acid(TGA).The structures of these 2 different states of silver nanoparticles were characterized by UV-VIS spectrophotometry and transmission electron microscope(TEM).As shown by the UV-VIS absorption spectra,absorption maxima at 384 nm and 392 nm were found for the L-cyct.-protected and TGA-protected silver nanoparticles respectively.It was shown by the results of TEM study,the sizes of the L-cyst.-protect... |
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| Keywords: | Silver nanoparticles L-cysteine Thioglycollic acid Eosin Y Interaction |
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