Characterization of interface properties of fluids by evaporation of a capillary bridge

Tadrist, Loïc; Motte, Laurence; Rahli, Ouamar

doi:10.1098/rsos.191608

Cited by 10 publications

(2 citation statements)

References 29 publications

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“…Assuming that the amount of evaporation of the resin is negligible, the numerator can be treated as a constant. Therefore, adhesion is most affected by the gap between the vat and build plate, and adhesion F decreases as the build plate rises 51 .…”

Section: Resultsmentioning

confidence: 99%

Sequential process optimization for a digital light processing system to minimize trial and error

Choi

Kim

Hong

et al. 2022

Sci Rep

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In additive manufacturing, logical and efficient workflow optimization enables successful production and reduces cost and time. These attempts are essential for preventing fabrication problems from various causes. However, quantitative analysis and integrated management studies of fabrication issues using a digital light processing (DLP) system are insufficient. Therefore, an efficient optimization method is required to apply several materials and extend the application of the DLP system. This study proposes a sequential process optimization (SPO) to manage the initial adhesion, recoating, and exposure energy. The photopolymerization characteristics and viscosity of the photocurable resin were quantitatively analyzed through process conditions such as build plate speed, layer thickness, and exposure time. The ability of the proposed SPO was confirmed by fabricating an evaluation model using a biocompatible resin. Furthermore, the biocompatibility of the developed resin was verified through experiments. The existing DLP process requires several trials and errors in process optimization. Therefore, the fabrication results are different depending on the operator’s know-how. The use of the proposed SPO enables a systematic approach for optimizing the process conditions of a DLP system. As a result, the DLP system is expected to be more utilized.

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Section: Resultsmentioning

confidence: 99%

Sequential process optimization for a digital light processing system to minimize trial and error

Choi

Kim

Hong

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Therefore, for the sake of simplicity, here, we consider that the volume of the squeezed droplet forms an effective cylinder, being r d the cylinder-equivalent radius for the drop base. More accurate calculations accounting for either the concavity [22] or the convexity [23] of the liquid-air interfacial area can be found in recent papers. On the other hand, for ideal gases ( )…”

Section: The Evaporation Kinetics Of Confined Dropletsmentioning

confidence: 99%

Extending Lifetime of Water Droplets Using Mirror‐Nanoporous Surfaces

Bellino

2020

Adv Materials Inter

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to integrate versatile platforms, the low reagent/sample consumption, and the high throughput that can be achieved via automation. [5] To perform assays on such small liquid volumes (i.e., microliter range), especially in many bioapplications that require operation at physiological temperature (37 °C), it is critical to reduce the evaporation rate of the droplets to expand their lifetime. Physiological temperature is indeed necessary in the operation of a wide range of biochemical assays, such as in most cell culture techniques [6] (from single [7] to 3D cell culture [8]) and several enzymebased analysis. [9] To date, methods to slow down droplet evaporation generally use high-humidity chambers or put the droplets under an oxygen-permeable biocompatible oil barrier.

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Reversible Perspiring Artificial “Fingertips”

et al. 2023

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Fingertip perspiration is a vital process within human predation, to which the species owes its survival and its biological success. In this paper, the unique human ability of extensive perspiration and controlled friction in self‐assembled cholesteric liquid crystals is recreated, mimicking the natural processes that occur in the dermis and epidermis of human skin. This is achieved by inducing porosity in responsive, liquid‐bearing material through the controlled‐polymerization phase‐separation process. The unique topography of human fingerprints is further emulated in the materials by balancing the parallel chirality‐induced force and the perpendicular substrate‐anchoring force during synthesis. As a result, artificial fingertips are capable of secreting and re‐absorbing liquid upon light illumination. By demonstrating the function of the soft material in a tribological aspect, it exhibits a controllable anti‐sliding property comparable to human fingertips and subsequently attains a higher degree of biomimicry. This biomimetic fingertip is envisioned being applied in a multitude of fields, ranging from biomedical instruments to interactive, human‐like soft robotic devices.

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Characterization of interface properties of fluids by evaporation of a capillary bridge

Cited by 10 publications

References 29 publications

Sequential process optimization for a digital light processing system to minimize trial and error

Sequential process optimization for a digital light processing system to minimize trial and error

Extending Lifetime of Water Droplets Using Mirror‐Nanoporous Surfaces

Reversible Perspiring Artificial “Fingertips”

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