Surface behaviors of droplet manipulation in microfluidics devices

Wu, Linshan; Guo, Zhiguang; Liu, Weimin

doi:10.1016/j.cis.2022.102770

Cited by 11 publications

(3 citation statements)

References 105 publications

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“…Whereas several electrons respond to lattice metal ions to create surface-trapped electrons, which are called Zn + defective sites [67]:…”

Section: Wettability Behavior Under Uv Illuminationmentioning

confidence: 99%

Correlation between the optical and microstructural characteristics and surface wettability transition of In₂O₃:Sn/ZnO nanostructured bilayer system for self-cleaning application

Soltanian,

Ghasemi,

Eftekhari

et al. 2023

Phys. Scr.

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In this research, in the Glass/In2O3: Sn/ZnO nanostructured bilayers system, In2O3: Sn and ZnO thin films were deposited onto glass using thermal evaporation and spray pyrolysis, respectively. The thin films were annealed at 350, 400‚ 450‚ 500‚ and 550 °C for 90 min. The primitive purpose of this study was to explain the effect of annealing temperature on the wettability, optical, microstructural, and morphological properties of the bilayers using UV–vis spectrophotometer, advanced x-ray diffraction (XDA) analysis, atomic force microscope (AFM), and scanning electron microscope (SEM). Various parameters were determined, including the transmission and reflection coefficients, optical energy band gap, extinction coefficient, refractive index, lattice strain, dislocation density, root mean square roughness, and water contact angle for the samples before UV exposure. The wettability results showed that the hydrophobicity of the In2O3: Sn/ZnO nanostructured thin films without UV radiation was improved by increasing the annealing temperature due to the increase in root mean square (RMS) roughness. Microstructural analysis indicated that increasing the annealing temperature increased crystallite size and decreased the lattice strain. The contact angles of the samples were significantly reduced, and the surface wettability of the layers changed from hydrophobic to hydrophilic after the UV treatment. Finally, the correlation between the optical, microstructural, morphological, and wettability features of the samples was determined. The effective optical band gap was observed to have a linear, inverse square, and quadratic correlation with strain, crystallite size, and dislocation density, respectively.

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“…Whereas several electrons respond to lattice metal ions to create surface-trapped electrons, which are called Zn + defective sites [67]:…”

Section: Wettability Behavior Under Uv Illuminationmentioning

confidence: 99%

Correlation between the optical and microstructural characteristics and surface wettability transition of In₂O₃:Sn/ZnO nanostructured bilayer system for self-cleaning application

Soltanian,

Ghasemi,

Eftekhari

et al. 2023

Phys. Scr.

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“…The fluid behavior in droplet microfluidics is mainly divided into laminar flow and droplets [ 167 ]. Hence, it is necessary to introduce a driving force to push the fluid into a microchannel.…”

Section: Droplet Microfluidics For Micro-/nanoemulsions and Capsulesmentioning

confidence: 99%

Recent Trends of Microfluidics in Food Science and Technology: Fabrications and Applications

Pang

et al. 2022

Foods

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The development of novel materials with microstructures is now a trend in food science and technology. These microscale materials may be applied across all steps in food manufacturing, from raw materials to the final food products, as well as in the packaging, transport, and storage processes. Microfluidics is an advanced technology for controlling fluids in a microscale channel (1~100 μm), which integrates engineering, physics, chemistry, nanotechnology, etc. This technology allows unit operations to occur in devices that are closer in size to the expected structural elements. Therefore, microfluidics is considered a promising technology to develop micro/nanostructures for delivery purposes to improve the quality and safety of foods. This review concentrates on the recent developments of microfluidic systems and their novel applications in food science and technology, including microfibers/films via microfluidic spinning technology for food packaging, droplet microfluidics for food micro-/nanoemulsifications and encapsulations, etc.

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“…Therefore, it has elicited ever-increasing interest in its potential application in the COVID-19 pandemic and cancer investigation, diagnosis, environment monitoring, combinatorial chemistry, ondemand chemical feed, etc. [1][2][3][4][5][6][7][8][9][10][11][12] Nowadays, inspired by the "dorsum of the Namib desert beetle," creating droplet arrays with a specific geometry and volume on heterogeneous patterned surfaces has been developed as an efficient method to facilitate high-throughput and programmable on-surface droplets processing. [13][14][15][16][17] The droplet repellency from the superhydrophobic (SHB) or superamphiphobic (SAB) backgrounds and the droplet anchoring property from the hydrophilic or amphiphilic regions can be integrated into a surface.…”

Section: Introductionmentioning

confidence: 99%

Mosaic Patterned Surfaces toward Generating Hardly‐Volatile Capsular Droplet Arrays for High‐Precision Droplet‐Based Storage and Detection

Jiao

et al. 2023

Small

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Precise detection involving droplets based on functional surfaces is promising for the parallelization and miniaturization of platforms and is significant in epidemic investigation, analyte recognition, environmental simulation, combinatorial chemistry, etc. However, a challenging and considerable task is obtaining mutually independent droplet arrays without cross‐contamination and simultaneously avoiding droplet evaporation‐caused quick reagent loss, inaccuracy, and failure. Herein, a strategy to generate mutually independent and hardly‐volatile capsular droplet arrays using innovative mosaic patterned surfaces is developed. The evaporation suppression of the capsular droplet arrays is 1712 times higher than the naked droplet. The high evaporation suppression of the capsular droplet arrays on the surfaces is attributed to synergistic blocking of the upper oil and bottom mosaic gasproof layer. The scale‐up of the capsular droplet arrays, the flexibility in shape, size, component (including aqueous, colloidal, acid, and alkali solutions), liquid volume, and the high‐precision hazardous substance testing proves the concept's high compatibility and practicability. The mutually independent capsular droplet arrays with amazingly high evaporation suppression are essential for the new generation of high‐performance open‐surface microfluidic chips used in COVID‐19 diagnosis and investigation, primary screening, in vitro enzyme reactions, environmental monitoring, nanomaterial synthesis, etc.

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Surface behaviors of droplet manipulation in microfluidics devices

Cited by 11 publications

References 105 publications

Correlation between the optical and microstructural characteristics and surface wettability transition of In₂O₃:Sn/ZnO nanostructured bilayer system for self-cleaning application

Correlation between the optical and microstructural characteristics and surface wettability transition of In₂O₃:Sn/ZnO nanostructured bilayer system for self-cleaning application

Recent Trends of Microfluidics in Food Science and Technology: Fabrications and Applications

Mosaic Patterned Surfaces toward Generating Hardly‐Volatile Capsular Droplet Arrays for High‐Precision Droplet‐Based Storage and Detection

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Surface behaviors of droplet manipulation in microfluidics devices

Cited by 11 publications

References 105 publications

Correlation between the optical and microstructural characteristics and surface wettability transition of In2O3:Sn/ZnO nanostructured bilayer system for self-cleaning application

Correlation between the optical and microstructural characteristics and surface wettability transition of In2O3:Sn/ZnO nanostructured bilayer system for self-cleaning application

Recent Trends of Microfluidics in Food Science and Technology: Fabrications and Applications

Mosaic Patterned Surfaces toward Generating Hardly‐Volatile Capsular Droplet Arrays for High‐Precision Droplet‐Based Storage and Detection

Contact Info

Product

Resources

About

Correlation between the optical and microstructural characteristics and surface wettability transition of In₂O₃:Sn/ZnO nanostructured bilayer system for self-cleaning application

Correlation between the optical and microstructural characteristics and surface wettability transition of In₂O₃:Sn/ZnO nanostructured bilayer system for self-cleaning application