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Fabrication of SiO2/PEGDA Inverse Opal Photonic Crystal with Fluorescence Enhancement Effects.


ABSTRACT: The present paper reports the fabrication of inverse opal photonic crystals (IOPCs) by using SiO2 spherical particles with a diameter of 300?nm as an opal photonic crystal template and poly(ethylene glycol) diacrylate (PEGDA) as an inverse opal material. Characteristics and fluorescence properties of the fabricated IOPCs were investigated by using the Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), reflection spectroscopy, and fluorescence microscopy. The results clearly showed that the IOPCs were formed comprising of air spheres with a diameter of ?270?nm. The decrease in size led to a decrease in the average refractive indexes from 1.40 to 1.12, and a remarkable stopband blue shift for the IOPCs was thus achieved. In addition, the obtained results also showed a fluorescence enhancement over 7.7-fold for the Fluor® 488 dye infiltrated onto the IOPCs sample in comparison with onto the control sample.

SUBMITTER: Dinh VP 

PROVIDER: S-EPMC7932782 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Fabrication of SiO<sub>2</sub>/PEGDA Inverse Opal Photonic Crystal with Fluorescence Enhancement Effects.

Dinh Van-Phuc VP   Nguyen Duy-Khoi DK   Nguyen Quang-Hung QH   Luu Thi-Thuy TT   Pham Thi Hai Yen THY   Vu Thi Thu Ha TTH   Chuang Han-Sheng HS   Pham Hong-Phong HP  

Journal of analytical methods in chemistry 20210223


The present paper reports the fabrication of inverse opal photonic crystals (IOPCs) by using SiO<sub>2</sub> spherical particles with a diameter of 300 nm as an opal photonic crystal template and poly(ethylene glycol) diacrylate (PEGDA) as an inverse opal material. Characteristics and fluorescence properties of the fabricated IOPCs were investigated by using the Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), reflection spectroscopy, a  ...[more]

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