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Controlling phase separations and reactions in trapped microfluidic droplets.
Sci Rep
September 2024
Experimental Physics I, University of Bayreuth, Universitätsstr. 30, 95447, Bayreuth, Germany.
Microfluidics and droplet-based assays are the basis for numerous high-throughput experiments, including bio-inspired microreactors and selection platforms for directed evolution. While elaborate techniques are available for the production of picoliter-sized droplets, there is an increasing demand for subsequent manipulation and control of the droplet interior. Here, we report on a straightforward method to rapidly adjust the size of single to several hundred double-emulsion droplets in a microfluidic sieve by varying the carrier fluid's salt concentration.
View Article and Find Full Text PDFBioinspired Hierarchical T Structures for Tunable Wettability and Droplet Manipulation by Facile and Scalable Nanoimprinting.
ACS Appl Mater Interfaces
October 2024
College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, P. R. China.
Developing surfaces that effectively repel low-surface-tension liquids with tunable adhesive properties remains a pivotal challenge. Micronano hierarchical re-entrant structures emerge as a promising solution, offering a robust structural defense against liquid penetration, minimizing area fraction, and creating narrow gaps that generate substantial upward Laplace pressure. However, the absence of an efficient, scalable, and tunable construction method has impeded their widespread applications.
View Article and Find Full Text PDFMultiscale Approach for Tuning Communication among Chemical Oscillators Confined in Biomimetic Microcompartments.
Acc Chem Res
September 2024
Sorbonne Université, CNRS, PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX (PHENIX), F-75005 Paris, France.
ConspectusInspired by the biological world, new cross-border disciplines and technologies have emerged. Relevant examples include systems chemistry, which offers a bottom-up approach toward chemical complexity, and bio/chemical information and communication technology (bio/chemical ICT), which explores the conditions for propagating signals among individual microreactors separated by selectively permeable membranes. To fabricate specific arrays of microreactors, microfluidics has been demonstrated as an excellent method.
View Article and Find Full Text PDFBiocompatible Janus microparticle synthesis in a microfluidic device.
Biomed Microdevices
July 2024
Mechanical Engineering Department, Bilkent University, Ankara, Türkiye.
Janus particles are popular in recent years due to their anisotropic physical and chemical properties. Even though there are several established synthesis methods for Janus particles, microfluidics-based methods are convenient and reliable due to low reagent consumption, monodispersity of the resultant particles and efficient control over reaction conditions. In this work a simple droplet-based microfluidic technique is utilized to synthesize magnetically anisotropic TiO2-Fe2O3 Janus microparticles.
View Article and Find Full Text PDFSoluto-thermal Marangoni convection in stationary micro-bioreactors on heated substrates: Tool for diagnosis of PSA.
Biomicrofluidics
March 2024
Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, UP 208 016, India.
The investigation of antigen-laden droplet deposition patterns on antibody-immobilized substrates has potential for disease detection. Stationary droplets that contain antigens on surfaces immobilized with antibodies can function as microreactors. Temperature modulation enhances reaction efficiency and reduces detection time in droplet-based systems.
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