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On-Chip Encapsulation of Quasi-Amorphous Photonic Materials with Controlled Shell Thickness

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Double emulsion micro-capsules exhibiting photonic colors are fabricated on a microfluidic chip with controlled shell thickness by utilizing a two-stage flow-focusing effect and an in situ UV polymerization technique. The colors of fabricated photonic capsules are controlled by changing the size of nanoparticles. Capsules exhibiting blue, green and red colors are successfully fabricated using quasi-amorphous photonic solution consisting of silica nanoparticles with diameter of d = 152±9.3, 180±9.0 and 225±14.9 nm respectively. The shell thickness of fabricated photonic capsules is controlled from 8.8 to 22.1 μm by adjusting the flow rate ratio injected into a micro fluidic chip.
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Keywords: COLLOID ASSEMBLY; CONTROLLED SHELL THICKNESS; DOUBLE EMULSION; MICROFLUIDIC CHIP; PHOTONIC CRYSTALS

Document Type: Research Article

Publication date: 2017-02-01

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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