Yahui Xue

Yahui Xue
Southern University of Science and Technology | SUSTech · Department of Mechanics and Aerospace Engineering

PhD
Currently hiring THREE postdocs in low dimensional materials, seperation membrane, and heat and mass transfer.

About

32
Publications
11,637
Reads
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994
Citations
Introduction
Yahui Xue currently serves as an assistant professor in the Department of Mechanics and Aerospace Engineering at Southern University of Science and Technology. His research interests mainly lie at the interface between soft matter, mechanics, and nanoscience. He is interested in exploring the underlying mechanism and physics of unique interactions between soft matter and solid structures at the nanometer scale and even below, targeting at applications in material science, energy and environment.
Additional affiliations
June 2021 - present
Southern University of Science and Technology
Position
  • Professor (Assistant)
February 2016 - February 2021
University of California, Berkeley
Position
  • PostDoc Position
April 2011 - October 2013
Helmholtz-Zentrum Hereon
Position
  • Visting scholar

Publications

Publications (32)
Article
Full-text available
Spontaneous imbibition enables the elegant propelling of nano-flows because of the dominance of capillarity at small length scales. The imbibition kinetics are, however, solely determined by the static host geometry, the capillarity, and the fluidity of the imbibed liquid. This makes active control particularly challenging. Here we show for aqueous...
Article
Bioinspired superhydrophobic surfaces have attracted great interest from fundamental research to engineering applications. The stability, design, and regulation of superhydrophobicity, especially in a submerged environment, have been one of the main focuses of recent efforts. This review is dedicated to illustrating the fundamental characteristics...
Article
Underwater metastability hinders the durable application of superhydrophobic surfaces. In this work, through thermodynamic analysis, we theoretically demonstrate the existence of an ultimate stable state on underwater superhydrophobic surfaces. Such a state is achieved by the synergy of mechanical balance and chemical diffusion equilibrium across t...
Article
Full-text available
Gated ion flow in graphene oxide membranes Cells are adept at fast, gated ion flow through tailored channels, which is key to many biological processes. Xue et al. developed ion transistors from reduced graphene oxide membranes and observed a field-enhanced diffusivity of the ions (see the Perspective by Hinds). By applying electrical gating, the a...
Article
Full-text available
Acoustic cloaks enable exciting object concealment by manipulating sound waves and have attracted research efforts from different approaches such as transformation acoustics. However, the challenge still lies in the practical implementation of those cloaks that require complex material designs. Here, we show that an underwater acoustic cloak can be...
Article
Wastewater is typically complicated with spilled oil, water soluble toxic dyes and microorganisms, making it hard to be processed and causing a significant threat to the environmental safety and human health. In this paper, we demonstrate a simple solution immersion method to obtain a multifunctional cellulose-based membrane (CBM) that possesses bo...
Article
No PDF available ABSTRACT We report on the modeling, fabrication, and characterization of an innovative design for a heterogeneous material consisting of spherical scatterers with asymmetric material distribution embedded in a thin viscoelastic layer. The material properties of the scatterers are uniformly oriented with respect to the layer thickne...
Article
Full-text available
Photonic quantum information processing, one of the leading platforms for quantum technologies1,2,3,4,5, critically relies on optical quantum interference to produce an indispensable effective photon–photon interaction. However, such an effective interaction is fundamentally limited to bunching⁶ due to the bosonic nature of photons⁷ and the restric...
Article
Full-text available
Significance Instability and collapse of the underwater slippery air mattress hinder its applications, after which the air mattress cannot be recovered even on superhydrophobic surfaces like lotus leaves. Beyond superhydrophobicity, we present the underwater superrepellent capacity of Salvinia leaves, which can efficiently and robustly recover the...
Article
Full-text available
Capillary flow has been extensively studied due to its broad applications in both engineering and sciences. Detailed studies have shown that capillary rise in hydrophilic microchannels obeys the Lacus-Washburn law, which illustrates a square-root relationship between the imbibition height and the time. The imbibition kinetics depends on the medium...
Article
Bubbles trapped in the cavities always play important roles in the underwater applications of structuredhydrophobicsurfaces. Air exchange between bubbles and surrounding water has a significant influence on the morphological bubble evolution, which in turn frequently affects the functionalities of the surfaces, such as superhydrophobicity and drag...
Article
Microstructured superhydrophobic surfaces have broad applications such as anti-fouling and drag reduction. The performance of such surfaces strongly depends on the stability of liquid-gas interfaces, which affects physical processes including wetting transition, restoration and bubble evolution. Various physical factors including pressurization and...
Article
Oil adsorption by porous materials is a major strategy for water purification and industrial spill clean-up; it is of great interest if the adsorbed oil can be safely recovered from those porous media. Here, direct oil recovery from fully saturated bulk carbon nanotube (CNT) sponges by displacing oil with water in controlled manner is shown. Surfac...
Article
Superhydrophobic surfaces have attracted great attention for drag reduction application. However, these surfaces are subject to instabilities, especially under fluid flow. In this work, we in situ examine the stability and wetting transition of underwater superhydrophobicity in laminar flow conditions by confocal microscopy. The absolute liquid pre...
Article
The microstructure size on textured surfaces of a given solid fraction exhibits an important effect on their properties. To understand the size effect on the surface adhesion, we study the receding dynamics of the microscopic three-phase contact lines, the adhesive property, and the relation between them on microstructured surfaces. Two types of su...
Article
In this paper, we perform a numerical simulation of the cavitating flow around an underwater hemispherical-head slender body running at a high speed. For the first time, the slip boundary condition is introduced into this problem, and we find that the slip boundary condition has a big influence on the cavitation in the flow-separation zone. By simu...
Article
Carbon nanotube sponges are lightweight, conductive, highly porous, and flexible. An integration of these properties is suitable for constructing high-performance electrocapillary imbibers. Water imbibition into the sponges can be initiated at low potentials with tunable uptake rates and switched on and off reversibly. Our controllable nanoporous i...
Article
Gas cavities trapped on structured hydrophobic surfaces play important roles in realizing functionalities such as superhydrophobicity, drag reduction, and surface cleaning. The morphology of the cavities exhibits strong dependence on system parameters which impact the performance of these surfaces. In this work, a complete theoretical analysis is p...
Article
Air-exposed droplet systems are widely applied in material preparation and experimental design. Recently, a droplet system with unusual properties featured by a liquid-like appearance and solid-like deformability was produced. However, it was then just an interesting and perplexing phenomenon in the absence of basic understandings and clear perspec...
Article
The wetting transition from the Cassie-Baxter to the Wenzel state is a phenomenon critically pertinent to the functionality of micro-structured superhydrophobic surfaces. This work focuses on the last stage of the transition, when the liquid-gas interface touches the bottom of the microstructure, which is also known as the "collapse" phenomenon. Th...
Article
The influence of solid-liquid adhesive property on liquid slippage at solid surfaces has been investigated using experiment approach on well-defined model surfaces as well as theoretical analysis. Based on a classical molecular-kinetic description for molecular and hydrodynamic slip, we propose a simple theoretical model that directly relates the l...
Article
Superhydrophobicity on structured surfaces is frequently achieved via the maintenance of liquid-air interfaces adjacent to the trapped air pockets. These interfaces, however, are subject to instabilities due to the Cassie-Baxter-to-Wenzel transition and total wetting. The current work examines in situ liquid-air interfaces on a submerged surface pa...
Article
Water repellency of hairy surfaces depends on the geometric arrangement of these hairs and enables different applications in both nature and engineering. We investigate the mechanism and optimization of a hairy surface floating on water to obtain its maximum load-carrying capacity by the free energy and force analyses. It is demonstrated that there...
Article
Surface adhesion is regulated by sparsely grafting responsive hydrophilic polymer chains on superhydrophobic surfaces but without obviously changing the wettability. We study experimentally how adhesion of superhydrophobic surfaces affects liquid slip. The slip length of water on such surfaces decays quickly as the adhesive force increases. This in...
Conference Paper
Surface stress is widely used to characterize the adsorption and surface morphology effects on the mechanical response of nanomaterials and nanodevices. In this paper, we will summarize the authors' recent studies of the impacts of surface stress on the static and dynamic properties of microcantilever sensors with topological surfaces. We first ana...
Article
Submersed superhydrophobic surfaces exhibit great potential for reducing flow resistance in microchannels and drag of submersed bodies. However, the low stability of liquid-air interfaces on those surfaces limits the scope of their application, especially under high liquid pressure. In this paper, we first investigate the wetting states on submerse...
Article
We study the effect of surface roughness on the resonance frequency of micro-cantilever sensors. The analysis demonstrates that surface roughness can enhance, decrease or even annul the effect of surface stress on the resonance frequency, depending on the surface inclination angle and the Poisson ratio of the coating film on the cantilever.
Article
There are significant applications of titanium silicides in industry. In this Letter, the mechanical properties of TiSi2 nanowire, including the Young modulus and fracture strength, are investigated based on AFM bending test. The fracture property indicates that the brittle fracture is the dominating character of TiSi2 nanowires. Theoretical analys...

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Projects

Projects (3)
Project
Theoretical analysis on the mechanical behaviors and properties of nanocomposites and nanostructures with surface and interface effects
Project
Mechanical behaviors of metallic materials with irradiation: Irradiation hardening ; Plastic instability; Irradiation embrittlement; Irradiation creep; Irradiation fatigue.