Convective assembly of silica colloidal particles inside photonic integrated chip-based microfluidic systems for gas sensing applications

Valeriy Zaytsev; Aleksei Kuzin; Krupamaya Panda; Vasiliy Chernyshev; Irina Florya; Fedor S. Fedorov; Vadim Kovalyuk; Alexander Golikov; Pavel P. An; Boris N. Khlebstov; Margarita Chetyrkina; Albert G. Nasibulin; Gregory Goltsman; Dmitry A. Gorin

doi:10.1039/D4NR02211D

Convective assembly of silica colloidal particles inside photonic integrated chip-based microfluidic systems for gas sensing applications†

Valeriy Zaytsev,

‡*^a Aleksei Kuzin,

‡*^abc Krupamaya Panda,

^a Vasiliy Chernyshev,^d Irina Florya,^b Fedor S. Fedorov,

^a Vadim Kovalyuk,

^bc Alexander Golikov,^be Pavel P. An,^eh Boris N. Khlebstov,

^fg Margarita Chetyrkina,^a Albert G. Nasibulin,

^a Gregory Goltsman^ch and Dmitry A. Gorin

*^a

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* Corresponding authors

^a Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, 30 Bld. 1 Bolshoy Boulevard, Russia
E-mail: v.zaytsev@skoltech.ru, aleksei.kuzin@skoltech.ru, d.gorin@skoltech.ru

^b Laboratory of Photonic Gas Sensors, University of Science and Technology MISIS, Russia

^c National Research University Higher School of Economics, Russia

^d National Medical Research Center for Obstetrics, Gynecology and Perinatology named after Academician V.I. Kulakov, Ministry of Healthcare of the Russian Federation, Moscow, Russia

^e Department of Physics, Moscow State Pedagogical University, Russia

^f Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov 410049, Russia

^g Saratov State University, Saratov 410012, Russia

^h Quantum Photonic Integrated Circuits Group, Russian Quantum Center, Skolkovo, Russia

Abstract

Optofluidics is a new field of modern science that stands at the interface of microfluidics and photonics and has good prospects for application in gas sensors. Microfluidics offers a promising platform for tuning and assembling monolayer structures that are used as sensitive layers for gas detection. Herein, we evaluate the concept of monolayer formation on a silicon nitride substrate enabling a surface coverage up to 59% through a microfluidic convective assembly and couple it with a photonic integrated chip to probe gas sensing performance.

Nanoscale

Convective assembly of silica colloidal particles inside photonic integrated chip-based microfluidic systems for gas sensing applications†

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Convective assembly of silica colloidal particles inside photonic integrated chip-based microfluidic systems for gas sensing applications

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