International Journal of Smart and Nano Materials, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 13
Published: Oct. 21, 2024
Language: Английский
Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 103490 - 103490
Published: March 1, 2025
Language: Английский
Citations
1
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: April 3, 2025
Regulation of liquid adhesion on functional surfaces has attracted increasing attention due to its significant implications for fundamental research in manipulation and a wide array applications. Inspired by the slippery peristomes Nepenthes pitcher plants, concept with regulatable under external stimuli was proposed demonstrated. This review concentrates advancements regulation these bioinspired surfaces. Initially, we provide concise introduction basic theory design criteria stable Following this, summarize characterization methods influence factors We then categorize smart modes into four key aspects: modulating lubricant's phase, thickness, structure, interactions between lubricant repellent liquid. Additionally, systematically emphasize multibehavioral strategies, such as movement, merging, splitting, bouncing, rotating, along emerging applications surfaces, including pipetting devices, fog collection, microreactors, biochips, nanogenerators. Finally, discuss remaining challenges future perspectives regulating potential
Language: Английский
Citations
1
Device, Journal Year: 2024, Volume and Issue: 2(10), P. 100465 - 100465
Published: July 25, 2024
Manipulating objects using physical tweezers is crucial in physics, chemistry, and biology. Despite significant advancements, however, these are still limited by the need for complex electrode arrays, external power sources, restricted charge-generation capability. Here, we report an innovative self-powered electrostatic tweezer (SET) that harnesses unique capability of accumulation tunability triboelectric charges poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))-based during sliding triboelectrification, imparting unprecedented flexibility adaptivity object manipulation. The SET enables precise manipulation with diverse materials, including bubbles, solid balls, liquid droplets, a superior high velocity 353 mm s−1. Notably, adaptive to open-to-closed platforms, single-to-multiple objects, two-dimensional (2D)-to-3D surfaces, thereby extending various applications droplet robots, cell assembly, pump-free microfluidics. By eliminating heat generation, holds great potential next-generation
Language: Английский
Citations
8
Nano Letters, Journal Year: 2024, Volume and Issue: 24(23), P. 7116 - 7124
Published: June 4, 2024
Controllable droplet manipulation has diverse applications; however, limited methods exist for externally manipulating droplets in confined spaces. Herein, we propose a portable triboelectric electrostatic tweezer (TET) by integrating forces with superhydrophobic surface that can even manipulate an enclosed space. Electrostatic induction causes the to be subjected force field so moved freely TET on platform. Characterized its high precision, flexibility, and robust binding strength, under various conditions achieve wide range of representative fluid applications such as microreactors, precise self-cleaning, cargo transportation, targeted delivery chemicals, liquid sorting, soft robotics, cell labeling. Specifically, demonstrated ability internal from outside closed system, performing labeling experiments within sealed Petri dish without opening culture system.
Language: Английский
Citations
7
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 7, 2025
It has been discovered during the last decade that when water drops slide on hydrophobic surfaces, they spontaneously leave negative charges along drop path. The become positively charged with a potential of 1 kV. This process, called electrification, influences motion and alters contact angles. Here, third effect electrification is demonstrated: preferential deposition dissolved solutes positive charges. To illustrate this, containing fluorophore ions are allowed to down tilted surface, their track imaged. Two perylene derivatives applied as fluorophores, one chromophore carrying charges, PDI+, PDI─. PDI+ deposited at concentration low 0.5 µm. In contrast, PDI─ only above 5 Experiments using grounded or coating conducting substrate indicate electric field generated from surface behind causes near interface. hypothesis also agrees Kelvin probe measurements. Complex biomolecules e.g. DNA can be affected by this. These findings contribute better understanding mass transfer processes interfaces.
Language: Английский
Citations
0
Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(2)
Published: Jan. 13, 2025
Previous studies on light-driven droplet transport often use light to heat the substrate generate a temperature difference, thereby changing wettability or surface tension at two ends of droplet, propel forward, and not much attention has been paid droplets with photothermal properties. Herein, we introduce method ink manipulation via near infrared lubricant infused surfaces. Rather than heating itself, this uses near-infrared irradiate one end an creating gradient inside it forming Marangoni flow that pushes forward. It is demonstrated would experience stages during sliding, movement ability depends their absorbance size; specifically, average acceleration steady velocity are both positively correlated negatively volume. The work only proves can realize conventional individual such as controllable along arbitrary paths, but also proposes unique customized merging strategy for multiple droplets. This investigation offers simple versatile approach droplets, relevant results have potential applications in fields precise maneuver droplet-based inkjet printing.
Language: Английский
Citations
0
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: May 5, 2025
Abstract Human civilization hinges on the capability to manipulate continuous flows. However, flows are often regulated in closed‐pipe configurations address their instability, isolating from environment and considerably restricting functionality. Manipulating open systems remains challenging. Here, capillary‐driven 3D fluidic networks (OFNs) composed of connected polyhedral frames reported. Each frame acts as a fluid chamber with free interfaces that enable entry exit; connecting rods function valves, allowing precise control over direction, velocity, path flow. The OFNs seamlessly adapt various systems, enabling manipulation multiple Leveraging these distinctive features, series applications, including selective metallization, programmable mixing diagnostics, spatiotemporal multi‐step reactions, achieved. OFNs’ also facilitate controlled drug release efficient heat exchange. These versatile will significantly advance technological innovations engineering, microfluidics, interfacial chemistry, biomedicine.
Language: Английский
Citations
0
Langmuir, Journal Year: 2024, Volume and Issue: 40(24), P. 12721 - 12728
Published: June 6, 2024
Improving the hydrophobic properties of aluminum alloys is crucial for industry. In previous reports, researchers prepared superhydrophobic surfaces by fabricating micro–nanostructures on metal surface with a nanosecond laser. However, no have formed microquadrangular groove structures surface. this article, inspired bamboo leaf, structure designed and processed using laser technology to form functional The effects processing parameters, such as power, scanning speed, time, defocus fill spacing size, morphology features, wettability structure, are investigated single-factor experimental method. results show optimal size obtained from experiment an error 1.28% design where has greatest effect defocus, great influence morphology. contact angle water drops can reach 154.7°, power wettability. Laser parameters distinct materials. Therefore, regulation formation microstructure be availably controlled result hydrophobicity achieved.
Language: Английский
Citations
1
The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(34), P. 8877 - 8895
Published: Aug. 22, 2024
Optofluidics, which utilizes the interactions between light and fluids to realize various functions, has garnered increasing attention owing advantages of operational simplicity, exceptional flexibility, rapid response, etc. As one typical light–fluid interactions, localized photothermal effect serving as a stimulus been widely used for fluid manipulation. Particularly, significant progress on photothermal-driven droplet manipulation made. In this perspective, recent advancements in driven are summarized. First, droplets open surfaces is outlined. An attractive levitation above gas–liquid interface via then discussed. Besides, an immiscible liquid phase also Although promising, further development still needed. The challenges perspectives strategy broad implementation summarized, will help future studies applications.
Language: Английский
Citations
1
Small, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 9, 2024
As an open microfluidic technology with excellent anti-fouling and energy-saving properties, liquid gating can selectively separate or transfer multiphase fluids, which has shown great application value in the field of biomedical engineering. However, no study demonstrated that ability to high-viscosity fluids biologically active substances, current valves are unable realize smart-responsive pulsed-patterned transfer, severely limits their scope. In this paper, is combined magnetically responsive materials prepare a liquid-based magnetic porous membrane (LMPM) magnetostatic deformation capability antifouling properties. On basis, valve terminal (MLGVT) patterning developed, feasibility for transferring hydrogel bioinks explored. Meanwhile, flexible MLGVT prepared realized targeted drug delivery. This expands potential delivery, cellular transport smart patches.
Language: Английский
Citations
1