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Triple-layered encapsulation through direct droplet impact.
Yin, Shuai; Huang, Yi; Shen, Xinhui; Zhang, Chaoyang; Chen, Xue; Li, Haiwang; Neng Wong, Teck.
Afiliação
  • Yin S; School of Mechanical and Aerospace Engineering, Nanyang Technological University. 50 Nanyang Avenue 639798, Singapore.
  • Huang Y; Research Institute of Aero-Engine, Beihang University, No.37 XueYuan Road, Haidian District, Beijing, 100083, China; School of Mechanical and Aerospace Engineering, Nanyang Technological University. 50 Nanyang Avenue 639798, Singapore. Electronic address: huangyi_buaa@buaa.edu.cn.
  • Shen X; School of Mechanical and Aerospace Engineering, Nanyang Technological University. 50 Nanyang Avenue 639798, Singapore.
  • Zhang C; Paris Elite Institute of Technology, Shanghai Jiao Tong University, 800 Road Dongchuan, Minhang District, Shanghai, 200240, China; School of Mechanical and Aerospace Engineering, Nanyang Technological University. 50 Nanyang Avenue 639798, Singapore.
  • Chen X; School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology. No.1 Jinji Road, Guilin, 541004, China; School of Mechanical and Aerospace Engineering, Nanyang Technological University. 50 Nanyang Avenue 639798, Singapore.
  • Marcos; School of Mechanical and Aerospace Engineering, Nanyang Technological University. 50 Nanyang Avenue 639798, Singapore.
  • Li H; Research Institute of Aero-Engine, Beihang University, No.37 XueYuan Road, Haidian District, Beijing, 100083, China.
  • Neng Wong T; School of Mechanical and Aerospace Engineering, Nanyang Technological University. 50 Nanyang Avenue 639798, Singapore. Electronic address: MTNWONG@ntu.edu.sg.
J Colloid Interface Sci ; 615: 887-896, 2022 Jun.
Article em En | MEDLINE | ID: mdl-35183976
HYPOTHESIS: Multilayer capsules not only provide better protection for the core, but also enable multifunctionalities. However, their fabrication is challenging. Rapid encapsulation by the impact of the droplet is a simplified approach to form the compound droplet with a single shell layer. Therefore, it is worth exploring the potential for multilayer capsule formation with the approach. EXPERIMENTS: We investigate the impact of an aqueous core droplet through a layered liquid pool to form compound droplet and use ultraviolet polymerization to solidify its outer layer. The critical conditions to form the compound droplet are studied. We then explore the protection features of the capsule. FINDINGS: We succeed in fabricating defect-free capsules that featuring a triple-layered structure with a solid outer shell. The corresponding formation dynamics is revealed. We illustrate that the capsule provides reliable protection to the core through fluorescent intensity monitoring, pH level indication and bacteria revival test. Our method can also be adapted to tailor the functionality of the capsule, which is demonstrated by fabricating the magnetically steerable capsule. Our proposed approach offers great potentials for protecting sensitive ingredients and allows great flexibility in customizing capsule functionalities.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Cápsulas Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Cápsulas Idioma: En Ano de publicação: 2022 Tipo de documento: Article