The role of metal nanoparticles in remote release of encapsulated materials
The role of metal nanoparticles in remote release of encapsulated materials
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DOI：
10.1021/nl050693n
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发表时间：
2005-07-01
期刊：
影响因子：
10.8
通讯作者：
Sukhorukov, GB
中科院分区：
文献类型：
--
作者：
Skirtach, AG;Dejugnat, C;Sukhorukov, GB
在单个胶囊水平上，在真实的时间内观察到封装的荧光标记的聚合物从在其壁中含有硫化金核/金壳纳米颗粒的纳米工程化的多层胶囊中的激光介导的远程释放。我们已经开发了一种方法来测量温度的增加，并定量研究了金属纳米粒子的吸收，尺寸和表面密度的影响，使用分析模型。实验测量和数值模拟与模型一致。在这项工作中提出的处理是一般性的，它适用于任何系统中的纳米粒子被用作吸收中心。潜在的生物医学应用突出。
Laser mediated remote release of encapsulated fluorescently labeled polymers from nanoengineered polyelectrolyte multilayer capsules containing gold sulfide core/gold shell nanoparticles in their walls is observed in real time on a single capsule level. We have developed a method for measuring the temperature increase and have quantitatively investigated the influence of absorption, size, and surface density of metal nanoparticles using an analytical model. Experimental measurements and numerical simulations agree with the model. The treatment presented in this work is of general nature, and it is applicable to any system where nanoparticles are used as absorbing centers. Potential biomedical applications are highlighted.