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相关概念视频

Photoreceptors and Visual Pathways01:22

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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles
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复合光色材料:机制,进展和应用

Zihe Song1, Jimeng Liao1, Fei Hao2

  • 1State Key Laboratory of Flexible Electronics (LoFE) and Institute of Flexible Electronics (IFE), MIIT Key Laboratory of Flexible Electronics, Shaanxi Key Laboratory of Flexible Electronics, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.

Research (Washington, D.C.)
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PubMed
概括
此摘要是机器生成的。

多重光色材料通过将光与其他刺激 (如pH或电压) 结合来提供先进的控制. 本综述探讨了它们的设计,应用以及智能技术的未来潜力.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 化学 化学 化学
  • 光子学 是一个光子学.

背景情况:

  • 光响应材料通过光能转换使远程控制成为可能.
  • 多重光色系统集成外部刺激 (门) 来加强对光异构的控制.
  • 这些系统克服了单刺激材料的局限性,实现了复杂的行为.

研究的目的:

  • 提供对多色光色材料的全面分析.
  • 建立基于封闭机制的设计策略和分类框架.
  • 为了指导下一代多色光色材料的合理设计.

主要方法:

  • 对多重色光系统的现有文献进行系统审查.
  • 基于封闭机制 (质子,电,机械,热,波长,离子,液体,气体,强度) 的材料分类.
  • 对连接分子结构与性能的设计原则进行批判性评估.

主要成果:

  • 详细分析质子,电,机械,热和波长隔离系统.
  • 讨论新兴的门模式,如离子,液体,气体和强度门的光色学.
  • 对关门模式的比较分析和挑战的识别.

结论:

  • 多重光色材料为先进的应用提供了复杂的,可编程的行为.
  • 未来的方向集中在智能,适应性材料平台上.
  • 关键应用包括传感,防伪,信息技术和适应性设备.