Article
Chemistry, Multidisciplinary
Daegeun Kim, Jiwoo Hong, Sang Kug Chung
Summary: This article proposes a new cleaning strategy for particle contamination on semiconductor wafer surfaces using the jet flow created by bubble oscillation. The authors designed and constructed a wafer cleaning apparatus based on this strategy and achieved a high cleaning efficiency.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Mechanics
Alexander A. Doinikov, Gabriel Regnault, Cyril Mauger, Philippe Blanc-Benon, Claude Inserra
Summary: An analytical theory is developed to describe acoustic microstreaming produced by interactions between two bubbles, involving complex oscillation modes and velocity fields. The theory shows strong applicability in calculating the interactions between bubbles and their effects on the velocity field.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Acoustics
Tianquan Tang, Chao Shen, Lixi Huang
Summary: Acoustic radiation force and torque can be used for biocompatible, contact-free, and precise translation and rotation of micro-objects. By utilizing the shape asymmetry of an object, a simple standing wavefield is used to trap and rotate micro-objects. The conformal transformation approach is employed to facilitate fast analysis and real-time computer-controlled manipulation. A low-cost, simple rotational tweezing system is built to confirm the theoretical predictions.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Chemistry, Analytical
Zenghua Fan, Zixiao Liu, Congcong Huang, Wei Zhang, Zhe Lv, Lefeng Wang
Summary: This study investigates capillary bridges and forces between spherical concave grippers and spherical particles. The analysis includes parameters such as contact angle, radius ratio, and liquid bridge volume to discuss the influence on dimensionless capillary force. The effectiveness of the theoretical approach is verified through simulation models and experiments.
Article
Biochemical Research Methods
Wei Zhang, Bin Song, Xue Bai, Lina Jia, Li Song, Jingli Guo, Lin Feng
Summary: This study introduces a versatile bubble-based acoustofluidic device that allows for flexible switching between multiple oscillatory modes to achieve stable transportation, trapping, 3D rotation, and circular revolution of micro-objects. The device can handle particles, cells, and organisms of various sizes, shapes, and quantities, while also enabling 3D cell reconstruction for quantifying basic cell properties accurately. The mode-switchable acoustofluidic device offers a versatile, controllable, and contactless method for manipulating micro-objects, providing an efficient solution for biomedical applications.
Article
Acoustics
Xianmei Zhang, Fan Li, Chenghui Wang, Jianzhong Guo, Runyang Mo, Jing Hu, Shi Chen, Jiaxin He, Honghan Liu
Summary: This study simplified the growth process of a gas nucleus in a micro-cavity and considered the full confinement effect of the surrounding medium. The numerical results showed that the initial position of the gas nucleus, cavity size, and properties of the surrounding medium have significant impacts on the nucleation time, radial oscillation, and translational motion of the cavitation bubble.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Nuclear Science & Technology
Haidong Liu, Wei Liu, Deqi Chen, Hanzhou Liu, Jiang Qin, Peigang Yan, Peiying Li
Summary: This paper investigates the mechanism of flow oscillations in a single rod channel through visual experimental study, identifying different types of flow oscillations and their characteristics in relation to bubble behavior. Furthermore, the analysis and discussion on the effect of thermal conditions on flow oscillation are discussed in detail.
ANNALS OF NUCLEAR ENERGY
(2021)
Article
Multidisciplinary Sciences
Rafal Rakowski, Ping Zhang, Kyle Jensen, Brendan Kettle, Tim Kawamoto, Sudeep Banerjee, Colton Fruhling, Grigory Golovin, Daniel Haden, Matthew S. Robinson, Donald Umstadter, B. A. Shadwick, Matthias Fuchs
Summary: A new method has been demonstrated to significantly enhance the emitted photon number in laser-wakefield accelerated betatron X-ray radiation, resulting in improved radiation parameters. This method holds promise for optimizing X-ray parameters for time-resolved investigations with spatial and temporal atomic resolution or high-resolution imaging.
SCIENTIFIC REPORTS
(2022)
Article
Acoustics
Qinxin Zhou, Meiying Li, Chiyuan Fu, Xuemei Ren, Zheng Xu, Xiaojun Liu
Summary: This study introduces a method to generate tunable bottle beams using an ultrasonic lens, allowing precise adjustment of bottle position with changes in acoustic frequency. The method enables manipulation of single particles or bubbles in liquid, providing a basis for accurate control of bubbles and particles.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Thermodynamics
Daniel Klembt, Heiko Meironke, Antonio Delgado
Summary: This experimental research aims to measure and simulate a biological multiphase flow in a fermentation tank, focusing on the complex interactions between three phases and the disturbance of natural convection by rising gas bubbles in high turbid fluid. The study uses acoustic sensors instead of optical measurement, and improves measurement technique for direct correlation between temperature and flow fields.
APPLIED THERMAL ENGINEERING
(2021)
Article
Mechanics
Fu-qiang Deng, Di Zhao, Ling-xin Zhang, Xue-ming Shao
Summary: Direct numerical simulations are conducted to investigate the behavior of a single gas/vapor bubble and spherical bubble clusters containing multiple bubbles in compressible flow fields. The collapse process of a single bubble remains spherical, while the collapse of a bubble cluster occurs layer by layer due to strong bubble coupling. The size and volume fraction of the bubble cluster significantly influence collapse time and sound pressure distribution. This study sheds light on the mechanism of bubble cluster collapse and sound generation, offering a theoretical basis for cavitation noise modeling.
JOURNAL OF HYDRODYNAMICS
(2023)
Article
Chemistry, Analytical
Aleksei Titov, Yilin Fan, Kagan Kutun, Ge Jin
Summary: Slug flow is a common flow type encountered in various facilities, and the commonly used point flow sensors have limitations for flow analysis. Distributed acoustic sensing (DAS) can turn optical fibers into distributed strain rate sensors, providing insights into flow characterization. In this study, a laboratory flow loop equipped with fiber optic cables was used to study the DAS response of rising Taylor bubbles. The DAS data allowed for velocity tracking of Taylor bubbles and measurement of the wake region and bubble merging. DAS is a promising tool for understanding Taylor bubble properties and monitoring destructive flow.
Article
Mechanics
I Eizenberg, D. Liberzon, I Jacobi
Summary: This study investigated the underwater release of air from a sudden rupture of a finite canister through time-resolved pressure and interfacial geometry measurements. Two distinct dynamical regimes for the air were identified: an inertial regime and a capillary pinch-off regime. The behavior of these regimes in frequency-space was modeled by a modified Rayleigh-Plesset equation.
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
(2022)
Article
Acoustics
Jie Huang, Xuemei Ren, Qinxin Zhou, Junhe Zhou, Zheng Xu
Summary: This paper introduces a new method that combines surface acoustic waves (SAWs) with microfluidics technology to efficiently manipulate substances on the surface of a substrate. By designing appropriate acoustic lenses, nonplanar SAWs can be generated, and directional particle transport can be achieved. This method has the potential for flexible cell manipulation in microfluidics and biomedical applications.
Article
Engineering, Industrial
J. F. Wang, Y. Y. Chen, Q. J. Sun, T. Zhang, X. H. Zhan
Summary: The effect of acoustic radiator configuration on bubble-acoustic interaction was investigated through numerical simulation. The results show that the degree of bubble-acoustic interaction relies on the synergic effects of acoustic radiator configuration and the resonant mode of the acoustic field, which can be achieved by adjusting the radiator height. A concave surface acoustic radiator outperforms cylinder and stepped-plate configurations in enhancing the acoustic radiation force, with a dimensionless maximum value of 93.7 attained at a curvature radius of 38 mm. The simulated results agree well with experimental observations on bubble behavior and welding stability. When the resonant height is 50 mm and the curvature radius is 38 mm, the inverse of the variation coefficient of arc voltage is increased to maximum values of 4.3 and 4.9, respectively, indicating superior welding stability. The mechanism of bubble-acoustic interaction provides vital clues for the design of ultrasonic systems.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Thermodynamics
Young Kwon Kim, Jiwoo Hong, Kwan Hyoung Kang, Sang Joon Lee, Joonwon Kim
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2016)
Article
Multidisciplinary Sciences
Taewoong Um, Jiwoo Hong, Do Jin Im, Sang Joon Lee, In Seok Kang
SCIENTIFIC REPORTS
(2016)
Article
Engineering, Mechanical
Jeong Jae Kim, Jiwoo Hong, Sang Joon Lee
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2017)
Article
Chemistry, Analytical
Kang Yong Lee, Jiwoo Hong, Sang Kug Chung
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Multidisciplinary
Dong In Yu, Ho Jae Kwak, Chulmin Park, Chiwoong Choi, Narayan Pandurang Sapkal, Jiwoo Hong, Moo Hwan Kim
Article
Green & Sustainable Science & Technology
Jinpyo Jeon, Jiwoo Hong, Sang Joon Lee, Sang Kug Chung
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2019)
Article
Chemistry, Multidisciplinary
Dong In Yu, Seungwoo Doh, Ho Jae Kwak, Jiwoo Hong, Narayan Pandurang Sapkal, Moo Hwan Kim
Article
Instruments & Instrumentation
Deasung Jang, Jeongmin Lee, Hyeonseok Song, Heebum Park, Jiwoo Hong, Sang Kug Chung
REVIEW OF SCIENTIFIC INSTRUMENTS
(2019)
Article
Materials Science, Multidisciplinary
Yoon-Ho Hwang, Taewoong Um, Jiwoo Hong, Gwang-Noh Ahn, Juan Qiao, In Seok Kang, Li Qi, Hyomin Lee, Dong-Pyo Kim
ADVANCED MATERIALS TECHNOLOGIES
(2019)
Article
Chemistry, Multidisciplinary
Kyungjin Park, Jong Hyun Kim, Byoung Jae Kim, Seong J. Cho, Jiwoo Hong, Geunbae Lim
Article
Physics, Applied
Yuna Park, Kang Yong Lee, Taegyu Won, Myonghun Kim, Hyunseok Song, Jiwoo Hong, Sang Kug Chung
Summary: The study introduces a three-dimensional manipulation strategy for magnetic droplets in biochemical applications by manipulating magnetic fields, enabling stable droplet transport without extracting magnetic particles. Additionally, particle extraction from magnetic droplets can be facilitated by introducing a chemically modified surface energy trap.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Taeyung Kim, Jaewook Kim, Jeon Woong Kang, Sun Beom Kwon, Jiwoo Hong
Summary: This study presents a compact and low-cost 3D digital microfluidics (DMF) platform constructed using 3D printing technology, which can be used for various biological, chemical, and medicinal research. The platform allows for basic 3D droplet manipulation and has been validated for chemical reaction-based analysis and synthesis. The proposed 3D DMF platform offers ease of manufacturing and flexibility for programmable 3D droplet manipulation in biochemical and medical applications.
Article
Chemistry, Multidisciplinary
Kyungjin Park, Dongyun Lee, Jae-Hong Lim, Jiwoo Hong, Geunbae Lim
Summary: Although oil-water separation technology via wettability-controlled membranes is promising for treating oily wastewater, membrane fouling by faulents severely reduces filtration efficiency. Direct visualization of the oil infiltration process in hydrophilic membranes is still challenging, despite previous studies on oil-fouled membranes.
Proceedings Paper
Engineering, Electrical & Electronic
Kang Yong Lee, Jiwoo Hong, Dea Sung Jang, Sung Jin Hong, Sang Joon Lee, Sang Kug Chung
2016 IEEE 29TH INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS)
(2016)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
