Plasmonic nanoparticles tuned thermal sensitive photonic polymer for biomimetic chameleon.
Plasmonic nanoparticles tuned thermal sensitive photonic polymer for biomimetic chameleon.
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用于仿生变色龙的等离子纳米颗粒调谐热敏光子聚合物
DOI：
10.1038/srep31328
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发表时间：
2016-08-09
影响因子：
4.6
通讯作者：
Hu X
中科院分区：
文献类型：
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作者：
Yan Y;Liu L;Cai Z;Xu J;Xu Z;Zhang D;Hu X
在许多热致光变色材料中，温度和光引起的变色行为通常缺乏全色响应。而对可见光刺激下的色响应的研究鲜有报道。在此，我们提出了一种由光子聚（n -异丙基丙烯酰胺-共甲基丙烯酸）共聚物和等离子体纳米粒子组成的热光致变色变色龙仿生材料的设计策略，该材料具有像变色龙一样在温度和光线触发下生动的颜色变化。我们利用等离子体纳米粒子如金纳米粒子和银纳米粒子来提高响应行为的灵敏度，并通过调节聚合物链构象转变来控制热敏膜的低临界溶解温度。最后，通过添加不同的等离子体纳米粒子来调节等离子体激发波长，该薄膜可能对整个VIS光谱具有比色响应。因此，该方法在新型生物传感器、军事和许多其他方面提供了潜在的应用。
Among many thermo-photochromic materials, the color-changing behavior caused by temperature and light is usually lack of a full color response. And the study on visible light-stimuli chromic response is rarely reported. Here, we proposed a strategy to design a thermo-photochromic chameleon biomimetic material consisting of photonic poly(N-isopropylacrylamide-co-methacrylic acid) copolymer and plasmonic nanoparticles which has a vivid color change triggered by temperature and light like chameleons. We make use of the plasmonic nanoparticles like gold nanoparticles and silver nanoparticles to increase the sensitivity of the responsive behavior and control the lower critical solution temperature of the thermosensitive films by tuning the polymer chain conformation transition. Finally, it is possible that this film would have colorimetric responses to the entire VIS spectrum by the addition of different plasmonic nanoparticles to tune the plasmonic excitation wavelength. As a result, this method provides a potential use in new biosensors, military and many other aspects.