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Near-Infrared Trigged Stimulus-Responsive Photonic Crystals with Hierarchical Structures
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-09-19 00:00:00 , DOI: 10.1021/acsami.7b11586 Tao Lu 1 , Hui Pan 1 , Jun Ma 2 , Yao Li 1 , Shenmin Zhu 1, 3 , Di Zhang 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-09-19 00:00:00 , DOI: 10.1021/acsami.7b11586 Tao Lu 1 , Hui Pan 1 , Jun Ma 2 , Yao Li 1 , Shenmin Zhu 1, 3 , Di Zhang 1
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Stimuli-responsive photonic crystals (PCs) trigged by light would provide a novel intuitive and quantitative method for noninvasive detection. Inspired by the flame-detecting aptitude of fire beetles and the hierarchical photonic structures of butterfly wings, we herein developed near-infrared stimuli-responsive PCs through coupling photothermal Fe3O4 nanoparticles with thermoresponsive poly(N-isopropylacrylamide) (PNIPAM), with hierarchical photonic structured butterfly wing scales as the template. The nanoparticles within 10 s transferred near-infrared radiation into heat that triggered the phase transition of PNIPAM; this almost immediately posed an anticipated effect on the PNIPAM refractive index and resulted in a composite spectrum change of ∼26 nm, leading to the direct visual readout. It is noteworthy that the whole process is durable and stable mainly owing to the chemical bonding formed between PNIPAM and the biotemplate. We envision that this biologically inspired approach could be utilized in a broad range of applications and would have a great impact on various monitoring processes and medical sensing.
中文翻译：
具有分级结构的近红外触发刺激响应光子晶体
由光触发的刺激响应光子晶体（PCs）将为无创检测提供一种新颖的直观且定量的方法。受火甲虫的火焰探测能力和蝴蝶翅膀的分层光子结构的启发，我们在本文中通过将光热Fe 3 O 4纳米粒子与热响应性聚（N-异丙基丙烯酰胺（PNIPAM），以分层的光子结构蝴蝶翼鳞片为模板。10 s内的纳米颗粒将近红外辐射转化为热量，从而触发了PNIPAM的相变。这几乎立即对PNIPAM折射率产生了预期的影响，并导致〜26 nm的复合光谱变化，从而实现了直接的视觉读数。值得注意的是，整个过程是持久且稳定的，这主要是由于PNIPAM与生物模板之间形成了化学键。我们设想，这种受生物学启发的方法可以在广泛的应用中使用，并且将对各种监测过程和医学传感产生巨大影响。
更新日期：2017-09-20
中文翻译：
具有分级结构的近红外触发刺激响应光子晶体
由光触发的刺激响应光子晶体（PCs）将为无创检测提供一种新颖的直观且定量的方法。受火甲虫的火焰探测能力和蝴蝶翅膀的分层光子结构的启发，我们在本文中通过将光热Fe 3 O 4纳米粒子与热响应性聚（N-异丙基丙烯酰胺（PNIPAM），以分层的光子结构蝴蝶翼鳞片为模板。10 s内的纳米颗粒将近红外辐射转化为热量，从而触发了PNIPAM的相变。这几乎立即对PNIPAM折射率产生了预期的影响，并导致〜26 nm的复合光谱变化，从而实现了直接的视觉读数。值得注意的是，整个过程是持久且稳定的，这主要是由于PNIPAM与生物模板之间形成了化学键。我们设想，这种受生物学启发的方法可以在广泛的应用中使用，并且将对各种监测过程和医学传感产生巨大影响。
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