Article
Multidisciplinary Sciences
Mingyang Cui, Susan K. Dutcher, Philip V. Bayly, J. Mark Meacham
Summary: We present a label-free acoustic microfluidic method to confine cilia-driven swimming cells in space. Our platform integrates a surface acoustic wave (SAW) actuator and bulk acoustic wave (BAW) trapping array, achieving high spatial resolution and strong trapping forces. We use this platform to study ciliary beating and cell body motion, and investigate the effects of environmental variables. Acoustic confinement offers a compelling alternative to traditional methods of cell holding and allows for mechanical perturbation of cells via rapid acoustic positioning.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Thermodynamics
Nouhayla El Ghani, Sophie Miralles, Valery Botton, Daniel Henry, Hamda Ben Hadid, Benoit Ter-Ovanessian, Sabrina Marcelin
Summary: This study investigates the influence of an impinging acoustic streaming jet on wall mass transfer experimentally and numerically, suggesting that acoustically-driven jets generated by ultrasounds can enhance transfer phenomena by creating localized friction zones. Experimental setup involves a cavity containing electrolytic solution, while numerical simulations of flow and mass transfer in the same configuration are also performed, showing significant enhancement of mass transfer at electrodes with injected acoustic power.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Yuechao Liu, Genshan Jiang, Yanfeng Yang, Qian Kong, Yu Jiang
Summary: Strong sound can induce acoustic streaming and affect heat transfer around tubes. The sound pressure level changes the acoustic streaming velocity without altering the distribution. Low-frequency and high-intensity sound waves enhance heat transfer outside the tubes. The optimal incidence angle for the flow field is 34 degrees, while the optimal angle for heat transfer is 45 degrees in tube arrays.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Multidisciplinary
Xian Chen, Yuan Ning, Shuting Pan, Bohua Liu, Ye Chang, Wei Pang, Xuexin Duan
Summary: A novel acoustic streaming tweezers-enabled microfluidic immunoassay was proposed, allowing for probe particles' purification, reaction, and sensing on the same chip under continuous-flow conditions. The high-speed microscale vortexes enable dynamic trapping and washing of the probe particles and enhance the capture efficiency of heterogeneous particle-based immunoassay through active mixing during trapping. This system achieved a limit of detection of 0.2 ng/mL and a dynamic response range from 0.3 to 10 ng/mL for prostate-specific antigen sensing with only 10 μL of sample in less than 15 minutes total assay time, making it suitable for on-site diagnosis applications.
Article
Acoustics
Gen-shan Jiang, Yan-feng Yang, Wei-long Xu, Miao Yu, Yue-chao Liu
Summary: The study investigates the enhancement of heat transfer by sound waves through nonlinear increase of convective heat transfer coefficient under different sound pressure levels and frequencies. The acoustic streaming contributes significantly to the heat transfer process, with an optimal sound frequency to maximize enhancement. Low-frequency and high-intensity sound waves generate strong acoustic streaming, proving its predominant role in heat and mass transfer.
Article
Multidisciplinary Sciences
Yu Miyazaki, Tomoyuki Yokouchi, Yuki Shiomi
Summary: This study proposes a method of precise manipulation of skyrmions using two-dimensional surface acoustic waves (SAWs). The method creates saddle-shaped local potentials similar to quadrupole ion traps to robustly trap skyrmions. Furthermore, by tuning the frequencies of the SAWs, the trapped skyrmions can not only move in straight lines but also move precisely in any direction in a two-dimensional thin film. These results are significant for the future design of spintronics devices based on skyrmions.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Blazej Baran, Krystian Machaj, Ziemowit Malecha, Krzysztof Tomczuk
Summary: This article presents a numerical study on the large-amplitude, acoustically-driven streaming flow under different frequencies of the acoustic wave and temperature gradients. The research confirms that baroclinic acoustic streaming flow is largely independent of frequency, and its intensity increases with the temperature gradient between the hot and cold surfaces. Additionally, slight maximum values are observed at certain oscillation frequencies.
Article
Chemistry, Analytical
Umar Farooq, Xiufang Liu, Wei Zhou, Muhammad Hassan, Lili Niu, Long Meng
Summary: This method utilizes the collision between nanowires and cells to induce cell lysis efficiently, with advantages of low power consumption, fast processing, reusability, and minimal sample consumption. Ni coated Ag-nanowires show promise for applications in point of care diagnostics.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Multidisciplinary Sciences
Jinhee Yoo, Jinhyuk Kim, Jungwoo Lee, Hyung Ham Kim
Summary: Acoustic tweezers are a promising technology for non-contact manipulation of microparticles or cells using focused ultrasound beams. This study presents a theoretical analysis and experimental demonstration of using acoustic tweezers to trap red blood cells. The results show the successful trapping of non-spherical red blood cells and demonstrate the potential for cell transportation and sorting applications.
Article
Engineering, Electrical & Electronic
Songfei Su, Jinyan Chen, Pengzhan Liu, Mengxin Sun, Huanbo Cheng
Summary: This study presents a method for trapping and collecting airborne particulate matter using an ultrasonic device system, which has been validated through numerical simulations and experiments and investigated the impact of various parameters on collection performance. Due to its contactless and mild handling attributes, this ultrasonic airborne particulate matter sampler can avoid clogging and secondary pollution issues compared to other methods.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2021)
Article
Physics, Applied
Xiao-Lei Tang, Tian-Xue Ma, Yue-Sheng Wang
Summary: In this work, the topological rainbow trapping and energy amplification of acoustic waves in a gradient phononic crystal structure is investigated numerically and experimentally. Topological interface states (TISs) are generated along the interface between two phononic crystals with different topological phases due to the acoustic valley Hall effect. Rainbow trapping is achieved by introducing gradient into a 3D-printed phononic crystal structure by varying the geometrical parameter of scatterers along the interface. Incident acoustic waves at different frequencies split, stop, and are significantly amplified at different positions. Importantly, the rainbow trapping of TISs is immune to random structural disorders. The topological rainbow trapping shows promise for the design of broadband energy harvesters with excellent robustness.
APPLIED PHYSICS LETTERS
(2023)
Article
Thermodynamics
Xingshuo Chen, Bayanheshig, Qingbin Jiao, Xin Tan, Wei Wang
Summary: A new computational model is established to quantitatively calculate the effect of ultrasound on mass transfer coefficient in liquid-solid reaction, showing that the mass transfer coefficient has a maximum value near the center of the silicon wafer and increases with reaction time. The enhancement of mass transfer coefficient is mainly due to acoustic streaming, while the increase with time is attributed to the thermal effect of ultrasound.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Physics, Applied
Hong-Wei Wu, Yun-Qiao Yin, Zong-Qiang Sheng, Yang Li, Dong-Xiang Qi, Ru-Wen Peng
Summary: This paper proposes a subwavelength closed surface structure consisting of radial gradient grooves for achieving localized acoustic rainbow trapping and demonstrates the possibility of realizing rainbow trapping on a deep-subwavelength scale through a closed surface. By utilizing the multi-band response and subwavelength dimension of the structure, an acoustic barrier is proposed for achieving multiband sound insulation and high ventilation simultaneously. The experimental results confirm the theoretical predictions, showing that the material losses can broaden the response bandwidth and form broadband sound insulation, indicating potential applications in infrastructure requiring both air-permeability and sound-proofing.
PHYSICAL REVIEW APPLIED
(2021)
Article
Computer Science, Information Systems
Kaishun Wu, Qiang Yang, Baojie Yuan, Yongpan Zou, Rukhsana Ruby, Mo Li
Summary: EchoWrite is an acoustic-based texts-entry system that allows users to write texts with a finger in the air without wearing additional devices. This system operates in a training-free style, achieving a speed better than touch screen-based method and providing favorable user experience.
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2021)
Article
Acoustics
Bjorn Hammarstrom, Nils R. Skov, Karl Olofsson, Henrik Bruus, Martin Wiklund
Summary: This study introduces a novel concept for acoustic trapping of particles and cells, enabling dynamic trapping patterns in a simple and inexpensive setup by using a modified piezoelectric transducer in direct contact with the liquid sample. The system allows for dynamic arraying of levitated trapping sites at low power with potential applications in cell-based sample preparation and cell culture.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2021)
Article
Materials Science, Multidisciplinary
Satish K. Samal, Sarbasri Halder, Manas Kumar Mallick, R. N. P. Choudhary, Satyanarayan Bhuyan
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Article
Crystallography
Sarbasri Halder, B. B. Arya, S. Bhuyan, R. N. P. Choudhary
Article
Engineering, Electrical & Electronic
Pengzhan Liu, Qiang Tang, Songfei Su, Junhui Hu
Summary: The MMP-type UNM has been proven to be robust and versatile for controllable rotary driving, dynamic trapping, and high-precision orientation of a single 1D nano object. Through numerical simulations, the driving angular velocities of the AgNW at the liquid-substrate interface can be predicted, and the simulation results agree well with experimental results. Additionally, the effects of device parameters and working conditions on the acoustic streaming field and the angular velocity of the AgNW are analyzed and clarified through simulation results and experimental verifications.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Analytical
Zhao Luo, Qiang Tang, Junhui Hu
Summary: This study proposes and demonstrates a method to increase the output power and rating capacity of button zinc-air batteries by applying ultrasonic excitation to induce acoustofluidics in the battery. Experimental results show a substantial improvement in both output power and capacity of the battery with the assistance of ultrasonic excitation.
Article
Engineering, Electrical & Electronic
Hao Xue, Junhui Hu
Summary: A fabrication method for flexible strain sensors using liquid power-ultrasound is developed, resulting in sensors with large stretchability, high sensitivity, and good stability. The process is environmentally friendly and versatile for various flexible nano devices, suggesting great potential for electronic skins and health monitoring systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Multidisciplinary Sciences
Pengzhan Liu, Zhenhua Tian, Kaichun Yang, Ty Downing Naquin, Nanjing Hao, Huiyu Huang, Jinyan Chen, Qiuxia Ma, Hunter Bachman, Peiran Zhang, Xiahong Xu, Junhui Hu, Tony Jun Huang
Summary: Acoustofluidic black holes (AFBHs) are a technology that can slow down and capture acoustic waves, enabling versatile particle manipulation functionalities. This study fills the gap between acoustofluidics and acoustic black holes, leading to potential applications in various fields.
Article
Chemistry, Analytical
Shun Lin, Yuchen Zhou, Junhui Hu, Zhijun Sun, Tianyu Zhang, Mu Wang
Summary: This work explores the application of the BP-ANN model in gas analysis using an ultrasonically radiated catalytic combustion gas sensor. It identifies a model called GWO-DHBP with excellent performance in gas identification and concentration measurement. The model shows high accuracy in gas recognition and low measurement error, with a faster convergence speed compared to other neural networks models.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Acoustics
Huiyu Huang, Pengzhan Liu, Qiuxia Ma, Zihao Tang, Mu Wang, Junhui Hu
Summary: The Al-air flow battery is a promising clean and sustainable energy storage system, which utilizes ultrasonic capillary effect and vibration to recycle electrolyte and agitate the reaction chamber. Experimental and numerical simulation results demonstrate that the acoustofluidic method can greatly enhance the peak power density and reduce energy consumption, weight, and volume of the battery.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Yuchen Zhou, Tianyu Zhang, Junhui Hu
Summary: This article proposes a system design method and Support Vector Machine (SVM) gas identification algorithm for an ultrasonically catalyzed single-sensor E-nose, which has been investigated for the first time. The performance of the integrated E-nose is evaluated using methanol, ethanol, acetone, and hydrogen gases, demonstrating its ability to achieve a gas identification success rate of 100% in concentrations greater than 10% LEL, with a concentration measurement error less than 10%. The SVM algorithm effectively improves the gas identification ability in the low-concentration range (1%-10% LEL).
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
S. N. Das, S. K. Pradhan, S. Bhuyan
Summary: In this work, a (Bi0.6Ni0.2Ba0.2)(Fe0.6Ti0.4)O-3 magnetoelectric composite was synthesized and its crystal structure and properties were investigated for potential applications in magnetic and electric field sensor development.
MATERIALS TODAY-PROCEEDINGS
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
S. K. Pradhan, S. N. Das, S. Bhuyan
Summary: The frequency and temperature dependent structural, morphological, and dielectric features of Neodymium (Nd+3) doped bismuth ferrite (BFO; BiFeO3) and lead titanate (PT; PbTiO3) electronic system were processed using a solid state chemical route. The capacitive properties of the solid ceramic material were experimentally investigated, showing tetragonal crystal structure and high dielectric constant and low tangent loss. The Nd modified BFO-PT compound is considered a promising candidate for electronic device invention.
MATERIALS TODAY-PROCEEDINGS
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
Biswaranjan Swain, Jayshree Halder, Nibedita Swain, P. P. Nayak, S. Bhuyan
Summary: Ferrite encumbered inductive coupling-based energy transmission technique using ferrite materials to enhance efficiency and precision has shown promising results in laboratory testing as a feasible alternative for implantable electronic sensors. The properties of ferrites, including high magnetic permeability and electrical resistance, contribute to the success of the proposed technique.
MATERIALS TODAY-PROCEEDINGS
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
A. Tripathy, S. N. Das, S. Bhuyan, R. N. P. Choudhary
Summary: An effective and simple method was used to synthesize lead-free BiGdMnNiO6 double perovskite electronic material, and its crystal structure and conduction mechanism were studied to provide important insights for the development of next-generation electronic devices.
MATERIALS TODAY-PROCEEDINGS
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
Tanaya Nayak, Praveen Priyaranjan Nayak, Biswaranjan Swain, Satyanarayan Bhuyan
Summary: This paper describes the design and performance evaluation of a contactless electric field transmission framework for exciting piezoelectric components with lead-free piezoelectric material Zinc Oxide. The study highlights the importance of matching operating frequencies for maximum output power and vibrational displacement.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Materials Science, Multidisciplinary
Tanaya Nayak, Biswaranjan Swain, Praveen P. Nayak, Satyanarayan Bhuyan
Summary: The contactless energy transmission through a parallel-plate capacitor-like structure allows for the simultaneous excitation of multiple piezoelectric components, resulting in higher output power. Testing results demonstrate the feasibility of non-contact stimulation/excitation of multiple piezo components through an electric field.
TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS
(2021)
