Cai Xiaoqing, Zhou Zhitao, Tao Tiger H
State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China.
School of Graduate Study University of Chinese Academy of Sciences Beijing 100049 China.
Adv Sci (Weinh). 2018 Dec 27;6(4):1801746. doi: 10.1002/advs.201801746. eCollection 2019 Feb 20.
Physically transient optics, a form of optics that can physically disappear with precisely controlled degradation behaviors, has widespread applications including information security, drug release, and degradable implants. Here, a set of silk-based programmable vanishing, biologically functional, multichromatic diffractive optical elements (MC-DOEs) is reported. Silk proteins produced by silkworms and spiders are mechanically robust, biocompatible, biodegradable, and importantly, optically transparent, which open up new opportunities for a set of fully degradable transient optical devices with no need of metallic or semiconductor components. Compared with monochromatic DOEs, MC-DOEs carry out richer information for more practical applications such as encryption and decryption of multilevel information, quantitative sensing/monitoring of chemical/biological cascade reactions, and effective treatment of infections caused by multiple pathogens.
物理瞬态光学是一种光学形式，能够通过精确控制的降解行为在物理上消失，具有广泛的应用，包括信息安全、药物释放和可降解植入物。在此，报道了一组基于丝绸的可编程消失、具有生物功能的多色衍射光学元件（MC-DOEs）。蚕和蜘蛛产生的丝蛋白具有机械强度高、生物相容性好、可生物降解的特点，重要的是，具有光学透明性，这为一系列无需金属或半导体组件的完全可降解瞬态光学器件开辟了新机遇。与单色DOEs相比，MC-DOEs能承载更丰富的信息，适用于更多实际应用，如多级信息的加密和解密、化学/生物级联反应的定量传感/监测以及多种病原体引起感染的有效治疗。
