Fabrication of Polymeric Microcapsules in a Microchannel using Formation of Double Emulsion

남진오,; 최창형,; 김종민,; 강성민,; 이창수,

doi:10.9713/kcer.2013.51.5.597

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…We illuminate the drops with UV light to polymerize DDMA and TPM. This photoploymerization enables rapid production of monodisperse particles at room temperature 39 , 41 , 42 .…”

Section: Resultsmentioning

confidence: 99%

“…This result indicates that the narrow size distribution with a CV < 5% agrees well with the US National Institute of Standards and Technology (NIST) definition of monodispersity 39 , 48 . Therefore, in situ microfluidic method efficiently synthesizes monodisperse microparticles although other microfluidic approaches for the generation of hydrogels or microparticles mainly depend on a post-polymerization processes 42 .…”

Section: Resultsmentioning

confidence: 99%

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Microfluidic preparation of monodisperse polymeric microspheres coated with silica nanoparticles

Kim

Jin

Jeong

et al. 2018

Sci Rep

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The synthesis of organic-inorganic hybrid particles with highly controlled particle sizes in the micrometer range is a major challenge in many areas of research. Conventional methods are limited for nanometer-scale fabrication because of the difficulty in controlling the size. In this study, we present a microfluidic method for the preparation of organic-inorganic hybrid microparticles with poly (1,10-decanediol dimethacrylate-co-trimethoxysillyl propyl methacrylate) (P (DDMA-co-TPM)) as the core and silica nanoparticles as the shell. In this approach, the droplet-based microfluidic method combined with in situ photopolymerization produces highly monodisperse organic microparticles of P (DDMA-co-TPM) in a simple manner, and the silica nanoparticles gradually grow on the surface of the microparticles prepared via hydrolysis and condensation of tetraethoxysilane (TEOS) in a basic ammonium hydroxide medium without additional surface treatment. This approach leads to a reduction in the number of processes and allows drastically improved size uniformity compared to conventional methods. The morphology, composition, and structure of the hybrid microparticles are analyzed by SEM, TEM, FT-IR, EDS, and XPS, respectively. The results indicate the inorganic shell of the hybrid particles consists of SiO2 nanoparticles of approximately 60 nm. Finally, we experimentally describe the formation mechanism of a silica-coating layer on the organic surface of polymeric core particles.

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“…We illuminate the drops with UV light to polymerize DDMA and TPM. This photoploymerization enables rapid production of monodisperse particles at room temperature 39 , 41 , 42 .…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Microfluidic preparation of monodisperse polymeric microspheres coated with silica nanoparticles

Kim

Jin

Jeong

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

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“…액적 접촉충전 현상 기반의 미세 유체 기술은 개별 액적을 전기를 이용해 다루는 디지털 미세유체 기 술의 한 분야로 [13,14], 채널 내 액적을 다루는 액적 미세유체 (Droplet Microfluidics) [15,16] 기술과는 다르며 기존 미세유체 기술 들의 단점을 극복할 수 있어 새로운 대안 기술로 제시되고 있는 신 기술 이다 [17,18]. [24,25].…”

Section: 서 론 최근 새로운 미세유체 기술로써 액적 접촉충전 현상이 여러 분야unclassified

Contact Charging and Electrphoresis of a Glassy Carbon Microsphere

Choi¹,

Im²

2016

Korean Chemical Engineering Research

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− We investigated the charging characteristics of a conducting solid sphere (glassy carbon sphere) comparing with that of a water droplet and check the applicability of the perfect conductor theory. For the systematic research, sphere size, applied voltages, viscosity of the medium were changed and the results were compared with that of corresponding water droplets and the perfect conductor theory. Basically, a glassy carbon sphere follows the perfect conductor theory but the charging amount was lower as much as 70~80% of theoretical prediction value due to oil film formed between electrode and a carbon sphere. We hope this result provides basic understandings on the solid sphere contact charging phenomenon and related applications.

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Recent progress in the synthesis of all-aqueous two-phase droplets using microfluidic approaches

Daradmare

Lee

2022

Colloids and Surfaces B: Biointerfaces

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Fabrication of Polymeric Microcapsules in a Microchannel using Formation of Double Emulsion

Cited by 8 publications

References 24 publications

Microfluidic preparation of monodisperse polymeric microspheres coated with silica nanoparticles

Microfluidic preparation of monodisperse polymeric microspheres coated with silica nanoparticles

Contact Charging and Electrphoresis of a Glassy Carbon Microsphere

Recent progress in the synthesis of all-aqueous two-phase droplets using microfluidic approaches

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