Article
Physics, Applied
Marko Simic, Doris Auer, Christian Neuper, Nikola Simic, Gerhard Prossliner, Ruth Prassl, Christian Hill, Ulrich Hohenester
Summary: This article proposes and demonstrates a scheme for optical nanoparticle characterization, which achieves real-time optical counting with single-particle sensitivity and high throughput. By monitoring the trajectories and velocity changes of each tracked particle, detailed information about the particle size distribution can be obtained. The experimental results show that this method is suitable for various applications.
PHYSICAL REVIEW APPLIED
(2022)
Article
Optics
Merit Sieben, Daniel Sauter, Hans Zappe
Summary: This article presents two phase retrieval algorithms based on neural networks and least-squares optimization, which are used to determine the necessary phase profile for generating arbitrary complex intensity distributions using an optofluidic phase shifter.
Article
Physics, Multidisciplinary
Dmitry K. Demskoi, Wolfgang K. Schief
Summary: The study focuses on the kinematic equations governing steady motions of an ideal fibre-reinforced fluid in a curved stratum, expressed in terms of the intrinsic Gauss equation. Integrable cases are obtained by ensuring compatibility between the Gauss equation and another third-order hyperbolic differential equation, leading to non-classical orthogonal coordinate systems on surfaces of constant Gaussian curvature. The formalism developed is illustrated by examining the simplest 'fluid sheets' with constant Gaussian curvature, such as the plane, sphere, and pseudosphere.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2021)
Article
Materials Science, Multidisciplinary
Bannur N. Shivananju, Lu Zhou, Yuefeng Yin, Wenzhi Yu, Babar Shabbir, Haoran Mu, Xiaozhi Bao, Yiqiu Zhang, Sun Tian, Qingdong Ou, Shaojuan Li, Mohammad M. Hossain, Yupeng Zhang, Huaiyu Shao, Guichuan Xing, Nikhil V. Medhekar, Chang-Ming Li, Jian Liu, Qiaoliang Bao
Summary: The study presents a novel approach using a photonic integrated graphene-optofluidic device to monitor DNA structural changes.
Article
Biochemical Research Methods
Petra Paie, Gianmaria Calisesi, Alessia Candeo, Andrea Comi, Federico Sala, Francesco Ceccarelli, Ada De Luigi, Pietro Veglianese, Korbinian Muhlberger, Michael Fokine, Gianluca Valentini, Roberto Osellame, Mark Neil, Andrea Bassi, Francesca Bragheri
Summary: Heterogeneity investigation at the single-cell level is crucial in clinical research. The combination of light sheet fluorescence microscopy and structured illumination microscopy in an optofluidic platform enables high throughput super-resolution imaging, allowing comprehensive evaluation of cellular heterogeneity at high resolution.
Article
Engineering, Chemical
Annika R. Voelp, Lisa Kagerbauer, Jan Engmann, Deniz Z. Gunes, Cecile Gehin-Delval, Norbert Willenbacher
Summary: The study presented an experimental setup for in-situ characterization of physical parameters of food foams, showing reliable determination of yield stress, gas volume fraction, and bubble size distribution at different heights. It was found that the gas volume fraction and bubble size increase monotonically during free drainage, and gradients of structural and rheological parameters along the direction of gravity increase over time. The yield stresses in milk foams were as predicted from phenomenological modeling, emphasizing the reliability of the measurement setup.
JOURNAL OF FOOD ENGINEERING
(2021)
Article
Optics
Angzhen Li, Ke Tian, Jibo Yu, Rashmi A. Minz, Jonathan M. Ward, Samir Mondal, Pengfei Wang, Sile Nic Chormaic
Summary: This work presents a packaged whispering gallery mode (WGM) device using an optical nanoantenna as the coupler and a glass microsphere as the resonator, achieving high-quality lasing emission with environmental isolation and small size.
Article
Optics
Zhengming Liu, Jian Xu, Zijie Lin, Jia Qi, Xiaolong Li, Aodong Zhang, Jintian Lin, Jianfang Chen, Zhiwei Fang, Yunpeng Song, Wei Chu, Ya Cheng
Summary: Single-mode circular optofluidic waveguides were fabricated on fused silica glass substrates using femtosecond laser-assisted chemical etching based on slit beam shaping. The fabrication process involved four steps, resulting in uniform circular microchannels with diameters around 10μm and lengths at the centimeter scale. Vacuum-assisted filling of liquid paraffin and decane mixture into the microchannel structure enabled the creation of a single-mode circular optofluidic waveguide embedded in glass.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Xian Wei, Rui Zhao, Zhongcheng Liang, Meimei Kong, Tao Chen
Summary: In this paper, an optofluidic phase modulator array based on the piezoelectric effect is designed, fabricated, and characterized. The array consists of three piezoelectric ceramics arranged on the vertices of an equilateral triangle. By changing the length of a transparent liquid filled in the ceramics through the inverse piezoelectric effect, optical phase modulation is achieved. Experimental results show that our modulator arrays have the ability to continuously adjust optical phase. The relative length variation can reach up to 9.286 μm when the voltage ranges from 0 to 135 V, resulting in approximately 9.685π optical phase modulation.
Article
Mechanics
S. Talik, M. Claeys, J. -j. Sinou, J. -p. Lambelin
Summary: In linear vibration studies, the statistical description of multipoint random excitations is sufficient. For nonlinear vibrations, it is necessary to model each excitation point separately and consider the correlation between them. This paper presents an original method to reduce the number of excitation terms by projecting them onto the eigenmodes of the structure.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Microbiology
Archana D. Siddam, Shari J. Zaslow, Yi Wang, K. Scott Phillips, Matthew D. Silverman, Patrick M. Regan, Jayaleka J. Amarasinghe
Summary: Non-tuberculous mycobacteria (NTM) are a public health concern due to their resistance to antimicrobial agents. Mycobacterium chimaera, a species of NTM, has been found to colonize surgical heater-cooler devices and form biofilms on medical device materials. Understanding the colonization and biofilm formation of M. chimaera on surfaces has implications for research into novel antimicrobial materials and approaches to reduce infection risk.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Jiaqi Song, Jianhua Zhang, Sanjana Krishna Mani, Ayusman Sen
Summary: This study introduces a new method for controlling the movement and merging of droplets using either ultraviolet or visible light. By utilizing photothermal conversion, efficient density-driven convective flows are achieved, enabling fast navigation and collective merging. Furthermore, the study demonstrates the potential of these moving droplets as carriers and reaction chambers.
Article
Physics, Fluids & Plasmas
S. S. Vybin, V. A. Skalyga, I. Izotov, S. Golubev, S. Razin, R. A. Shaposhnikov, M. Yu Kazakov, A. F. Bokhanov, S. P. Shlepnev
Summary: The high efficiency of a new ion beam extraction system with a strongly inhomogeneous electric field has been experimentally demonstrated. The system allows for increased ion acceleration rate and expands the available range of current densities with effective ion beam formation. The main advantages of this system include a significant decrease in optimal accelerating voltage under certain current density values, the possibility of ion beam formation with previously inaccessible current densities, and a significant decrease in ion flux to the puller in non-optimal modes of ion beam formation.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Jiyuan Yang, An-An Lu, Yan Chen, Xiqi Gao, Xiang-Gen Xia, Dirk T. M. Slock
Summary: This paper investigates the channel estimation problem for massive multi-input multi-output orthogonal frequency division multiplexing (MINIO-OFDM) systems. It proposes a statistical channel model based on space-frequency beam and solves the channel estimation problem by calculating the solutions of projections. Simulation results demonstrate the accuracy of the proposed method in estimating the channel.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2022)
Article
Acoustics
Yikun Li, Zhiming Hao, Qiang Du, Minglu Xing, Linlong Dou, Yifei Li
Summary: The study revealed that rough surfaces dissipate more energy than smooth surfaces, and specimens with more bolts dissipate relatively more energy. When the number of bolts is consistent, the series type dissipates more energy than the parallel type.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Engineering, Chemical
Anton B. Kornberg, Michael R. Thompson, Shiping Zhu
Summary: An approach using controlled crazing and post-polymerization was used to incorporate a nanoscaled conductive co-continuous network into commercial ENGAGE(TM) Polyolefin Elastomers (POEs). This approach involved stretching POE films in a reactive mixture of acrylic polymerization precursors to promote crazing and grow a rigid acrylic hydrogel phase. The hydrogel phase provided ion conductivity to the POE.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Editorial Material
Engineering, Chemical
Andrew Nick Hrymak, Robert Pelton, Shiping Zhu
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Yichen Wan, Wenlian Qiu, He Zhu, Qi Zhang, Shiping Zhu
Summary: Adhesive materials are extensively used in various industries, and the design principles for high-performance adhesives involve regulating adhesion and cohesion strengths. Compared to permanent covalent bonds, dynamic bonds, such as dynamic covalent and noncovalent bonds, are vulnerable to mechanical stimuli but rebuildable, making them promising for manipulating internal and interfacial energy. This review mainly focuses on discussing the application of dynamic bonds in adhesive materials to regulate adhesion and cohesion, and provides a perspective on future research directions for engineered construction of advanced adhesive materials.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Engineering, Chemical
Kaka Zhang, Shuaishuai Huang, Qi Zhang, He Zhu, Shiping Zhu
Summary: POSS-based coatings have gained significant attention for their unique structure and desirable properties. The integration of the inorganic POSS cage with organic functional groups allows for different approaches to blend them with polymers. The resulting coatings exhibit excellent mechanical, anti-wetting, anti-corrosive, icephobic, and fire-retardant properties. This review focuses on the latest developments in POSS-based functional coatings and discusses their challenges and future research directions.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Jierui Wang, Jialin Yang, He Zhu, Bo-Geng Li, Shiping Zhu
Summary: The construction of MOF monoliths can overcome the limitations of MOF powders, such as pressure drop, mass transfer inefficiency, and operational complexities. However, challenges still exist in terms of pore clogging, pore structure tuning, and mechanical properties. In this study, nearly pure ZIF-8 monoliths with hierarchical pore structure were successfully prepared by converting amorphous ZIF-8/ZnO nanoparticles into continuous ZIF-8 skeleton. These monoliths exhibited low bulk densities, high BET surface areas, and good mechanical properties. They also demonstrated high catalytic activity and stability in a continuous flow reactor for the Knoevenagel reaction. This work presents a valuable approach for the application of MOF-based monoliths in adsorption, separation, catalysis, and effluent treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Guoqing Chen, Xiwei Guo, Chang Yang, He Zhu, Qi Zhang, Shiping Zhu
Summary: This paper reports the preparation of a novel type of underwater adhesive through in situ coacervation using commercially available materials. The adhesive exhibits superstrong underwater adhesion and excellent water-resistant performance, making it suitable for versatile applications in different environments.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xiwei Guo, Jiaheng Liang, Zhifen Wang, Jianliang Qin, Qi Zhang, Shiping Zhu, Kun Zhang, He Zhu
Summary: A polycaprolactone-based polyurethane elastomer is designed and prepared to meet the demand for tough, recyclable, and degradable elastomers. It exhibits high toughness and fracture energy, can be recycled multiple times without losing mechanical properties, and can be degraded by lipase. The elastomer also possesses good biocompatibility and promotes wound healing, making it suitable for applications in biomedicine, flexible electronics, and robotics.
ADVANCED MATERIALS
(2023)
Editorial Material
Engineering, Chemical
Joao B. P. Soares, Alexander Penlidis, Hidetaka Tobita, Shiping Zhu
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Jierui Wang, He Zhu, Shiping Zhu
Summary: Metal-organic frameworks (MOFs) have garnered much attention for their unique properties, but their powder form limits their industrial applications. This review explores the use of interfacial techniques to shape MOFs into ordered superstructures, such as 0D, 1D, 2D, and 3D structures. The advancements in gas-solid, gas-liquid, liquid-solid, and liquid-liquid interfaces are comprehensively summarized, and future research directions and challenges are discussed briefly.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaoqing Ming, Yifeng Sheng, Le Yao, Xiangrui Li, Yangyu Huang, He Zhu, Qi Zhang, Shiping Zhu
Summary: In this study, an anti-swelling conductive hydrogel was developed based on a polyampholyte copolymer. The hydrogel exhibited high transparency, remarkable mechanical properties, and good ionic conductivity. It was capable of sensing accurate and stable electro-mechanic responses, making it suitable for strain sensors in monitoring human motions both in air and underwater. Furthermore, the unique material allowed for dynamic information storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yang Xiang, Xiwei Guo, He Zhu, Qi Zhang, Shiping Zhu
Summary: Previous research has mainly focused on improving the Seebeck coefficient and electrical conductivity while neglecting thermal conductivity. In this study, an aqueous biphasic system is introduced as a solvent to fabricate electrolytes for liquid-state thermocells. The aqueous biphasic electrolytes can provide different solvation environments and suppress thermal convection, leading to an increase in the Seebeck coefficient and a decrease in thermal conductivity. Experimental results show that using the aqueous biphasic electrolyte leads to a doubling of the Seebeck coefficient and an over 5 times improvement in output power for the thermocell. Furthermore, using porous graphite felt as the electrode material can further improve the output power by over 7 times.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Computer Science, Artificial Intelligence
Qinyao Chang, Shiping Zhu
Summary: Inspired by human vision attention mechanism, this study proposes a saliency detection model, TSFP-Net, which utilizes multilevel features and time information to improve accuracy. The model extracts multiscale temporal-spatial features from input video frames and generates a saliency map through hierarchical decoding. Experimental results demonstrate that the proposed method outperforms state-of-the-art methods on video saliency benchmarks.
COGNITIVE COMPUTATION
(2023)
Article
Materials Science, Multidisciplinary
Xiangyang Liu, Qi Zhang, He Zhu, Shiping Zhu
Summary: The increase in CO2 concentration in the atmosphere has led to global warming, and adsorption is considered an effective method for CO2 capture and stabilization. Metal-organic frameworks (MOFs) are promising materials for carbon capture, but using MOF powders directly may lead to practical issues. A phase inversion strategy is reported here to prepare SIFSIX-3-Ni@PAN composite beads with hierarchically porous structure and good mechanical stability. The obtained materials have high CO2 capture capacity even at low CO2 concentrations.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Editorial Material
Polymer Science
Tian-Tian Wang, Yin-Ning Zhou, Zheng-Hong Luo, Shiping Zhu
Summary: This article introduces the importance of dispersity in the field of polymerization and traces the development of explicit equations for calculating dispersity. It highlights the application and mathematical manipulations of these equations in reversible-deactivation radical polymerization. Additionally, it showcases their role in emerging applications.
Article
Polymer Science
Wenlian Qiu, Yi Huang, He Zhu, Qi Zhang, Shiping Zhu
Summary: We report a biomimetic dry underwater adhesive that is free of catechol chemistry and can adhere well to various substrate surfaces underwater. The adhesive is prepared by ternary copolymerization of monomers with nonphenolic aromatic groups, cations, and polar side chains, and exhibits hydrophobicity, mechanical toughness, and good interfacial bonding in water.
