ie1c03981_si_003.mp4 (25.15 MB)
Magnetoresponsive Photonic Micromotors and Wireless Sensing Microdevices Based on Robust Magnetic Photonic Microspheres
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posted on 2021-11-19, 16:54 authored by Yunpeng Wang, Yu Zheng, Kai Zhao, Suli Wu, Benzhi Ju, Shufen Zhang, Wenbin NiuMagnetic
photonic crystal microspheres (MPCMs), featuring the optical
performances of photonic crystals (PCs) and magnetic properties of
magnetic materials, have attracted increasing interest in biomedical
separation and detection, micro-/nano-motors, magnetic displays, and
so forth. Herein, we present a robust strategy for the fabrication
of new generation MPCMs with angle-independent structural color and
extraordinary mechanical stability, by chemically growing an inorganic
PC shell onto a strongly magnetic micro inner core. The magnetic micro
inner core introduces strong magnetism, allowing the assembly and
motion of the MPCMs for magnetoresponsive photonic micromotors. Furthermore,
by virtue of the unique pyroelectric and photoelectric effects of
a ZnO layer compositing a PC shell, the MPCMs can be used to construct
a multifunctional microsensor with quadruple sensing capabilities,
including ultraviolet light, heating, infrared light, and an alternating
magnetic field. Such a microsensor is further integrated with a Bluetooth
transmitter to construct a wireless sensing microdevice, achieving
the remote transmission of the stimulus to a mobile device. This work
not only provides a novel strategy for fabricating robust, magnetic
photonic microspheres but also opens a new avenue for their use as
magnetoresponsive photonic micromotors and multifunctional sensing
platforms.
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zno layer compositingwireless sensing microdevicequadruple sensing capabilitiesmicro -/ nanoindependent structural colorextraordinary mechanical stabilityattracted increasing interestmagnetoresponsive photonic micromotorsmultifunctional sensing platformsincluding ultraviolet lightalternating magnetic fieldmpcms ), featuringmagnetic photonic microspheresnew generation mpcmsphotonic crystalsnew avenueinfrared lightmagnetic propertiesmagnetic materialsmagnetic displaysunique pyroelectricrobust strategyremote transmissionphotoelectric effectspc shelloptical performancesnovel strategymultifunctional microsensormobile devicefabricating robustchemically growingbluetooth transmitterbiomedical separationalso opens