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Shao M, Li C, Meng C, Liu R, Yu P, Lu F, Zhong Z, Wei X, Zhou J, Zhong MC. Laser-induced microbubble as an in vivo valve for optofluidic manipulation in living Mice's microvessels. LAB ON A CHIP 2024; 24:3480-3489. [PMID: 38899528 DOI: 10.1039/d4lc00095a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Optofluidic regulation of blood microflow in vivo represents a significant method for investigating illnesses linked to abnormal changes in blood circulation. Currently, non-invasive strategies are limited to regulation within capillaries of approximately 10 μm in diameter because the adaption to blood pressure levels in the order of several hundred pascals poses a significant challenge in larger microvessels. In this study, using laser-induced microbubble formation within microvessels of the mouse auricle, we regulate blood microflow in small vessels with diameters in the tens of micrometers. By controlling the laser power, we can control the growth and stability of microbubbles in vivo. This controlled approach enables the achievement of prolonged ischemia and subsequent reperfusion of blood flow, and it can also regulate the microbubbles to function as micro-pumps for reverse blood pumping. Furthermore, by controlling the microbubble, narrow microflow channels can be formed between the microbubbles and microvessels for assessing the apparent viscosity of leukocytes, which is 76.9 ± 11.8 Pa·s in the in vivo blood environment. The proposed design of in vivo microbubble valves opens new avenues for constructing real-time blood regulation and exploring cellular mechanics within living organisms.
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Affiliation(s)
- Meng Shao
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Changxu Li
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China.
| | - Chun Meng
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Rui Liu
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China.
| | - Panpan Yu
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Fengya Lu
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China.
| | - Zhensheng Zhong
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China.
| | - Xunbin Wei
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China.
- Biomedical Engineering Department and Cancer Hospital and Institute, Key Laboratory of Carcinogenesis and Translational Research, Peking University, 100081, Beijing, China.
| | - Jinhua Zhou
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230032, China.
| | - Min-Cheng Zhong
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China.
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2
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Chapman M, Rajagopal V, Stewart A, Collins DJ. Critical review of single-cell mechanotyping approaches for biomedical applications. LAB ON A CHIP 2024; 24:3036-3063. [PMID: 38804123 DOI: 10.1039/d3lc00978e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Accurate mechanical measurements of cells has the potential to improve diagnostics, therapeutics and advance understanding of disease mechanisms, where high-resolution mechanical information can be measured by deforming individual cells. Here we evaluate recently developed techniques for measuring cell-scale stiffness properties; while many such techniques have been developed, much of the work examining single-cell stiffness is impacted by difficulties in standardization and comparability, giving rise to large variations in reported mechanical moduli. We highlight the role of underlying mechanical theories driving this variability, and note opportunities to develop novel mechanotyping devices and theoretical models that facilitate convenient and accurate mechanical characterisation. Moreover, many high-throughput approaches are confounded by factors including cell size, surface friction, natural population heterogeneity and convolution of elastic and viscous contributions to cell deformability. We nevertheless identify key approaches based on deformability cytometry as a promising direction for further development, where both high-throughput and accurate single-cell resolutions can be realized.
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Affiliation(s)
- Max Chapman
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, Australia.
| | - Vijay Rajagopal
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, Australia.
| | - Alastair Stewart
- ARC Centre for Personalised Therapeutics Technologies, The University of Melbourne, Parkville, VIC, Australia
- Department of Biochemistry and Pharmacology, The University of Melbourne, Parkville, VIC, Australia
| | - David J Collins
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, Australia.
- Graeme Clarke Institute University of Melbourne Parkville, Victoria 3052, Australia
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3
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Zhou Y, Cheng W, Dai L, Guo S, Wu J, Wang X, Wu A, Liu L, Jiao N. Novel Operation Mechanism and Multifunctional Applications of Bubble Microrobots. Adv Healthc Mater 2024; 13:e2303767. [PMID: 38230855 DOI: 10.1002/adhm.202303767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Indexed: 01/18/2024]
Abstract
Microrobots have emerged as powerful tools for manipulating particles, cells, and assembling biological tissue structures at the microscale. However, achieving precise and flexible operation of arbitrary-shaped microstructures in 3D space remains a challenge. In this study, three novel operation methods based on bubble microrobots are proposed to enable delicate and multifunctional manipulation of various microstructures. These methods include 3D turnover, fixed-point rotation, and 3D ejection. By harnessing the combined principles of the effect of the heat flow field and surface tension of an optothermally generated bubble, the bubble microrobot can perform tasks such as flipping an SIA humanoid structure, rotating a bird-like structure, and launching a hollow rocket-like structure. The proposed multi-mode operation of bubble microrobots enables diverse attitude adjustments of microstructures with different sizes and shapes in both 2D and 3D spaces. As a demonstration, a biological microenvironment of brain glioblastoma is constructed by the bubble microrobot. The simplicity, versatility, and flexibility of this proposed method hold great promise for applications in micromanipulation, assembly, and tissue engineering.
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Affiliation(s)
- Yuting Zhou
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wen Cheng
- Shengjing Hospital of China Medical University, Shenyang, 110022, China
| | - Liguo Dai
- Henan Provincial Key Laboratory of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Songyi Guo
- Shengjing Hospital of China Medical University, Shenyang, 110022, China
| | - Junfeng Wu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaodong Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Anhua Wu
- Shengjing Hospital of China Medical University, Shenyang, 110022, China
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Niandong Jiao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
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4
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Li Y, Guo Z, Zhao X, Liu S, Chen Z, Dong WF, Wang S, Sun YL, Wu X. An all-optical multidirectional mechano-sensor inspired by biologically mechano-sensitive hair sensilla. Nat Commun 2024; 15:2906. [PMID: 38575578 PMCID: PMC10994919 DOI: 10.1038/s41467-024-47299-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 03/22/2024] [Indexed: 04/06/2024] Open
Abstract
Mechano-sensitive hair-like sensilla (MSHS) have an ingenious and compact three-dimensional structure and have evolved widely in living organisms to perceive multidirectional mechanical signals. Nearly all MSHS are iontronic or electronic, including their biomimetic counterparts. Here, an all-optical mechano-sensor mimicking MSHS is prototyped and integrated based on a thin-walled glass microbubble as a flexible whispering-gallery-mode resonator. The minimalist integrated device has a good directionality of 32.31 dB in the radial plane of the micro-hair and can detect multidirectional displacements and forces as small as 70 nm and 0.9 μN, respectively. The device can also detect displacements and forces in the axial direction of the micro-hair as small as 2.29 nm and 3.65 μN, respectively, and perceive different vibrations. This mechano-sensor works well as a real-time, directional mechano-sensory whisker in a quadruped cat-type robot, showing its potential for innovative mechano-transduction, artificial perception, and robotics applications.
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Affiliation(s)
- Yuxiang Li
- School of Information Science and Technology, Fudan University, Shanghai, China
| | - Zhihe Guo
- School of Information Science and Technology, Fudan University, Shanghai, China
| | - Xuyang Zhao
- School of Information Science and Technology, Fudan University, Shanghai, China
| | - Sheng Liu
- School of Information Science and Technology, Fudan University, Shanghai, China
| | | | - Wen-Fei Dong
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Shixiang Wang
- School of Information Science and Technology, Fudan University, Shanghai, China.
| | - Yun-Lu Sun
- School of Information Science and Technology, Fudan University, Shanghai, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.
| | - Xiang Wu
- School of Information Science and Technology, Fudan University, Shanghai, China.
- State Key Laboratory of Photovoltaic Science and Technology, Fudan University, Shanghai, China.
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5
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Chen Y, Ni C, Jiang L, Ni Z, Xiang N. Inertial Multi-Force Deformability Cytometry for High-Throughput, High-Accuracy, and High-Applicability Tumor Cell Mechanotyping. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2303962. [PMID: 37789502 DOI: 10.1002/smll.202303962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/23/2023] [Indexed: 10/05/2023]
Abstract
Previous on-chip technologies for characterizing the cellular mechanical properties often suffer from a low throughput and limited sensitivity. Herein, an inertial multi-force deformability cytometry (IMFDC) is developed for high-throughput, high-accuracy, and high-applicability tumor cell mechanotyping. Three different deformations, including shear deformations and stretch deformations under different forces, are integrated with the IMFDC. The 3D inertial focusing of cells enables the cells to deform by an identical fluid flow, and 10 parameters, such as cell area, perimeter, deformability, roundness, and rectangle deformability, are obtained in three deformations. The IMFDC is able to evaluate the deformability of different cells that are sensitive to different forces on a single chip, demonstrating the high applicability of the IMFDC in analyzing different cell lines. In identifying cell types, the three deformations exhibit different mechanical responses to cells with different sizes and deformability. A discrimination accuracy of ≈93% for both MDA-MB-231 and MCF-10A cells and a throughput of ≈500 cells s-1 can be achieved using the multiple-parameters-based machine learning model. Finally, the mechanical properties of metastatic tumor cells in pleural and peritoneal effusions are characterized, enabling the practical application of the IMFDC in clinical cancer diagnosis.
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Affiliation(s)
- Yao Chen
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Chen Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Lin Jiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Zhonghua Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Nan Xiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
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6
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Lou C, Yang H, Hou Y, Huang H, Qiu J, Wang C, Sang Y, Liu H, Han L. Microfluidic Platforms for Real-Time In Situ Monitoring of Biomarkers for Cellular Processes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307051. [PMID: 37844125 DOI: 10.1002/adma.202307051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/05/2023] [Indexed: 10/18/2023]
Abstract
Cellular processes are mechanisms carried out at the cellular level that are aimed at guaranteeing the stability of the organism they comprise. The investigation of cellular processes is key to understanding cell fate, understanding pathogenic mechanisms, and developing new therapeutic technologies. Microfluidic platforms are thought to be the most powerful tools among all methodologies for investigating cellular processes because they can integrate almost all types of the existing intracellular and extracellular biomarker-sensing methods and observation approaches for cell behavior, combined with precisely controlled cell culture, manipulation, stimulation, and analysis. Most importantly, microfluidic platforms can realize real-time in situ detection of secreted proteins, exosomes, and other biomarkers produced during cell physiological processes, thereby providing the possibility to draw the whole picture for a cellular process. Owing to their advantages of high throughput, low sample consumption, and precise cell control, microfluidic platforms with real-time in situ monitoring characteristics are widely being used in cell analysis, disease diagnosis, pharmaceutical research, and biological production. This review focuses on the basic concepts, recent progress, and application prospects of microfluidic platforms for real-time in situ monitoring of biomarkers in cellular processes.
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Affiliation(s)
- Chengming Lou
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Hongru Yang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Ying Hou
- Institute for Advanced Interdisciplinary Research (IAIR), University of Jinan, Jinan, 250022, P. R. China
| | - Haina Huang
- Institute for Advanced Interdisciplinary Research (IAIR), University of Jinan, Jinan, 250022, P. R. China
| | - Jichuan Qiu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Chunhua Wang
- Institute for Advanced Interdisciplinary Research (IAIR), University of Jinan, Jinan, 250022, P. R. China
| | - Yuanhua Sang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Hong Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
- Institute for Advanced Interdisciplinary Research (IAIR), University of Jinan, Jinan, 250022, P. R. China
| | - Lin Han
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266000, P. R. China
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7
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Chen Y, Jiang L, Zhang X, Ni Z, Xiang N. Viscoelastic-Sorting Integrated Deformability Cytometer for High-Throughput Sorting and High-Precision Mechanical Phenotyping of Tumor Cells. Anal Chem 2023; 95:18180-18187. [PMID: 38018866 DOI: 10.1021/acs.analchem.3c03792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The counts and phenotypes of circulating tumor cells (CTCs) in whole blood are useful for disease monitoring and prognostic assessment of cancer. However, phenotyping CTCs in the blood is difficult due to the presence of a large number of background blood cells, especially some blood cells with features similar to those of tumor cells. Herein, we presented a viscoelastic-sorting integrated deformability cytometer (VSDC) for high-throughput label-free sorting and high-precision mechanical phenotyping of tumor cells. A sorting chip for removing large background blood cells and a detection chip for detecting multiple cellular mechanical properties were integrated into our VSDC. Our VSDC has a sorting efficiency and a purity of over 95% and over 81% for tumor cells, respectively. Furthermore, multiple mechanical parameters were used to distinguish tumor cells from white blood cells using machine learning. An accuracy of over 97% for identifying tumor cells was successfully achieved with the highest identification accuracy of 99.4% for MCF-7 cells. It is envisioned that our VSDC will open up new avenues for high-throughput and label-free single-cell analysis in various biomedical applications.
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Affiliation(s)
- Yao Chen
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China
| | - Lin Jiang
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China
| | - Xiaozhe Zhang
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China
| | - Zhonghua Ni
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China
| | - Nan Xiang
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China
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8
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Kshetri KG, Nama N. Acoustophoresis around an elastic scatterer in a standing wave field. Phys Rev E 2023; 108:045102. [PMID: 37978594 DOI: 10.1103/physreve.108.045102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/11/2023] [Indexed: 11/19/2023]
Abstract
Acoustofluidic systems often employ prefabricated acoustic scatterers that perturb the imposed acoustic field to realize the acoustophoresis of immersed microparticles. We present a numerical study to investigate the time-averaged streaming and radiation force fields around a scatterer. Based on the streaming and radiation force field, we obtain the trajectories of the immersed microparticles with varying sizes and identify a critical transition size at which the motion of immersed microparticles in the vicinity of a prefabricated scatterer shifts from being streaming dominated to radiation dominated. We consider a range of acoustic frequencies to reveal that the critical transition size decreases with increasing frequency; this result explains the choice of acoustic frequencies in previously reported experimental studies. We also examine the impact of scatterer material and fluid properties on the streaming and radiation force fields, as well as on the critical transition size. Our results demonstrate that the critical transition size decreases with an increase in acoustic contrast factor: a nondimensional quantity that depends on material properties of the scatterer and the fluid. Our results provide a pathway to realize radiation force based manipulation of small particles by increasing the acoustic contrast factor of the scatterer, lowering the kinematic viscosity of the fluid, and increasing the acoustic frequency.
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Affiliation(s)
- Khemraj Gautam Kshetri
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Nitesh Nama
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
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9
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Liu Y, Yin Q, Luo Y, Huang Z, Cheng Q, Zhang W, Zhou B, Zhou Y, Ma Z. Manipulation with sound and vibration: A review on the micromanipulation system based on sub-MHz acoustic waves. ULTRASONICS SONOCHEMISTRY 2023; 96:106441. [PMID: 37216791 PMCID: PMC10213378 DOI: 10.1016/j.ultsonch.2023.106441] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/06/2023] [Accepted: 05/12/2023] [Indexed: 05/24/2023]
Abstract
Manipulation of micro-objects have been playing an essential role in biochemical analysis or clinical diagnostics. Among the diverse technologies for micromanipulation, acoustic methods show the advantages of good biocompatibility, wide tunability, a label-free and contactless manner. Thus, acoustic micromanipulations have been widely exploited in micro-analysis systems. In this article, we reviewed the acoustic micromanipulation systems that were actuated by sub-MHz acoustic waves. In contrast to the high-frequency range, the acoustic microsystems operating at sub-MHz acoustic frequency are more accessible, whose acoustic sources are at low cost and even available from daily acoustic devices (e.g. buzzers, speakers, piezoelectric plates). The broad availability, with the addition of the advantages of acoustic micromanipulation, make sub-MHz microsystems promising for a variety of biomedical applications. Here, we review recent progresses in sub-MHz acoustic micromanipulation technologies, focusing on their applications in biomedical fields. These technologies are based on the basic acoustic phenomenon, such as cavitation, acoustic radiation force, and acoustic streaming. And categorized by their applications, we introduce these systems for mixing, pumping and droplet generation, separation and enrichment, patterning, rotation, propulsion and actuation. The diverse applications of these systems hold great promise for a wide range of enhancements in biomedicines and attract increasing interest for further investigation.
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Affiliation(s)
- Yu Liu
- Institute of Medical Robotics, School of Biomedical Engineering, Shanghai Jiao Tong University, No.800 Dongchuan Road, Shanghai 200240, China; Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau 999078, China
| | - Qiu Yin
- State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yucheng Luo
- Institute of Medical Robotics, School of Biomedical Engineering, Shanghai Jiao Tong University, No.800 Dongchuan Road, Shanghai 200240, China
| | - Ziyu Huang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau 999078, China
| | - Quansheng Cheng
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau 999078, China
| | - Wenming Zhang
- State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bingpu Zhou
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau 999078, China
| | - Yinning Zhou
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau 999078, China.
| | - Zhichao Ma
- Institute of Medical Robotics, School of Biomedical Engineering, Shanghai Jiao Tong University, No.800 Dongchuan Road, Shanghai 200240, China.
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10
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Shen L, Tian Z, Zhang J, Zhu H, Yang K, Li T, Rich J, Upreti N, Hao N, Pei Z, Jin G, Yang S, Liang Y, Chaohui W, Huang TJ. Acousto-dielectric tweezers for size-insensitive manipulation and biophysical characterization of single cells. Biosens Bioelectron 2023; 224:115061. [PMID: 36634509 DOI: 10.1016/j.bios.2023.115061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 10/03/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
The intrinsic biophysical properties of cells, such as mechanical, acoustic, and electrical properties, are valuable indicators of a cell's function and state. However, traditional single-cell biophysical characterization methods are hindered by limited measurable properties, time-consuming procedures, and complex system setups. This study presents acousto-dielectric tweezers that leverage the balance between controllable acoustophoretic and dielectrophoretic forces applied on cells through surface acoustic waves and alternating current electric fields, respectively. Particularly, the balanced acoustophoretic and dielectrophoretic forces can trap cells at equilibrium positions independent of the cell size to differentiate between various cell-intrinsic mechanical, acoustic, and electrical properties. Experimental results show our mechanism has the potential for applications in single-cell analysis, size-insensitive cell separation, and cell phenotyping, which are all primarily based on cells' intrinsic biophysical properties. Our results also show the measured equilibrium position of a cell can inversely determine multiple biophysical properties, including membrane capacitance, cytoplasm conductivity, and acoustic contrast factor. With these features, our acousto-dielectric tweezing mechanism is a valuable addition to the resources available for biophysical property-based biological and medical research.
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Affiliation(s)
- Liang Shen
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA; State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Zhenhua Tian
- Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA.
| | - Jinxin Zhang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Haodong Zhu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Kaichun Yang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Teng Li
- Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Joseph Rich
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Neil Upreti
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Nanjing Hao
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Zhichao Pei
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Geonsoo Jin
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Shujie Yang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Yaosi Liang
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, 27708, USA
| | - Wang Chaohui
- State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China.
| | - Tony Jun Huang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA.
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11
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Rasouli R, Villegas KM, Tabrizian M. Acoustofluidics - changing paradigm in tissue engineering, therapeutics development, and biosensing. LAB ON A CHIP 2023; 23:1300-1338. [PMID: 36806847 DOI: 10.1039/d2lc00439a] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
For more than 70 years, acoustic waves have been used to screen, diagnose, and treat patients in hundreds of medical devices. The biocompatible nature of acoustic waves, their non-invasive and contactless operation, and their compatibility with wide visualization techniques are just a few of the many features that lead to the clinical success of sound-powered devices. The development of microelectromechanical systems and fabrication technologies in the past two decades reignited the spark of acoustics in the discovery of unique microscale bio applications. Acoustofluidics, the combination of acoustic waves and fluid mechanics in the nano and micro-realm, allowed researchers to access high-resolution and controllable manipulation and sensing tools for particle separation, isolation and enrichment, patterning of cells and bioparticles, fluid handling, and point of care biosensing strategies. This versatility and attractiveness of acoustofluidics have led to the rapid expansion of platforms and methods, making it also challenging for users to select the best acoustic technology. Depending on the setup, acoustic devices can offer a diverse level of biocompatibility, throughput, versatility, and sensitivity, where each of these considerations can become the design priority based on the application. In this paper, we aim to overview the recent advancements of acoustofluidics in the multifaceted fields of regenerative medicine, therapeutic development, and diagnosis and provide researchers with the necessary information needed to choose the best-suited acoustic technology for their application. Moreover, the effect of acoustofluidic systems on phenotypic behavior of living organisms are investigated. The review starts with a brief explanation of acoustofluidic principles, the different working mechanisms, and the advantages or challenges of commonly used platforms based on the state-of-the-art design features of acoustofluidic technologies. Finally, we present an outlook of potential trends, the areas to be explored, and the challenges that need to be overcome in developing acoustofluidic platforms that can echo the clinical success of conventional ultrasound-based devices.
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Affiliation(s)
- Reza Rasouli
- Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
| | - Karina Martinez Villegas
- Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
| | - Maryam Tabrizian
- Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Quebec, Canada
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12
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Baumgartner K, Westerhausen C. Recent advances of surface acoustic wave-based sensors for noninvasive cell analysis. Curr Opin Biotechnol 2023; 79:102879. [PMID: 36634534 DOI: 10.1016/j.copbio.2022.102879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 01/12/2023]
Abstract
In the past years, the application of surface acoustic waves (SAWs) as sensors for biological applications has reached high relevance in the field of biotechnology. From rapid advances in designs and materials, new opportunities have emerged, especially for sensing of living cells. Additionally, the combination of SAW sensors with microfluidics and optical microscopy has expanded the market of possible applications. Differentiation of infected and healthy red blood cells or aggressive and nonaggressive tumor cells, and monitoring of wound healing, bacteria, or viral antigen concentrations via SAW-based sensors are only a few examples of recent achievements in cell biology. The rapid growth of this field requires frequent reviewing of the recent progress to maintain high research standards and promote future developments.
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Affiliation(s)
- Kathrin Baumgartner
- Physiology, Institute of Theoretical Medicine, University of Augsburg, 86159 Augsburg, Germany; Hanns-Seidel-Stiftung e.V., 80636 Munich, Germany; Center for NanoScience (CeNS), Ludwig-Maximilians-Universität Munich, 80799 Munich, Germany; Institute of Physics, Experimental Physics I, University of Augsburg, 86159 Augsburg, Germany
| | - Christoph Westerhausen
- Physiology, Institute of Theoretical Medicine, University of Augsburg, 86159 Augsburg, Germany; Center for NanoScience (CeNS), Ludwig-Maximilians-Universität Munich, 80799 Munich, Germany; Institute of Physics, Experimental Physics I, University of Augsburg, 86159 Augsburg, Germany; Augsburg Center for Innovative Technologies (ACIT), 86159 Augsburg, Germany.
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13
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Voß J, Wittkowski R. Acoustic Propulsion of Nano- and Microcones: Dependence on the Viscosity of the Surrounding Fluid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:10736-10748. [PMID: 35998334 DOI: 10.1021/acs.langmuir.2c00603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This article investigates how the acoustic propulsion of cone-shaped colloidal particles that are exposed to a traveling ultrasound wave depends on the viscosity of the fluid surrounding the particles. Using acoustofluidic computer simulations, we found that the propulsion of such nano- and microcones decreases strongly and even changes sign for increasing shear viscosity. In contrast, we found only a weak dependence of the propulsion on the bulk viscosity. The obtained results are in line with the findings of previous theoretical and experimental studies.
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Affiliation(s)
- Johannes Voß
- Institute of Theoretical Physics, Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Raphael Wittkowski
- Institute of Theoretical Physics, Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
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14
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Chen Y, Guo K, Jiang L, Zhu S, Ni Z, Xiang N. Microfluidic deformability cytometry: A review. Talanta 2022; 251:123815. [DOI: 10.1016/j.talanta.2022.123815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 07/23/2022] [Accepted: 08/02/2022] [Indexed: 10/15/2022]
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15
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Zhou Y, Dai L, Jiao N. Review of Bubble Applications in Microrobotics: Propulsion, Manipulation, and Assembly. MICROMACHINES 2022; 13:1068. [PMID: 35888885 PMCID: PMC9324494 DOI: 10.3390/mi13071068] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 02/01/2023]
Abstract
In recent years, microbubbles have been widely used in the field of microrobots due to their unique properties. Microbubbles can be easily produced and used as power sources or tools of microrobots, and the bubbles can even serve as microrobots themselves. As a power source, bubbles can propel microrobots to swim in liquid under low-Reynolds-number conditions. As a manipulation tool, microbubbles can act as the micromanipulators of microrobots, allowing them to operate upon particles, cells, and organisms. As a microrobot, microbubbles can operate and assemble complex microparts in two- or three-dimensional spaces. This review provides a comprehensive overview of bubble applications in microrobotics including propulsion, micromanipulation, and microassembly. First, we introduce the diverse bubble generation and control methods. Then, we review and discuss how bubbles can play a role in microrobotics via three functions: propulsion, manipulation, and assembly. Finally, by highlighting the advantages and current challenges of this progress, we discuss the prospects of microbubbles in microrobotics.
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Affiliation(s)
- Yuting Zhou
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China;
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liguo Dai
- College of Mechanical and Electrical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
| | - Niandong Jiao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China;
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
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16
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17
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Mazalan MB, Noor AM, Wahab Y, Yahud S, Zaman WSWK. Current Development in Interdigital Transducer (IDT) Surface Acoustic Wave Devices for Live Cell In Vitro Studies: A Review. MICROMACHINES 2021; 13:mi13010030. [PMID: 35056195 PMCID: PMC8779155 DOI: 10.3390/mi13010030] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 02/06/2023]
Abstract
Acoustics have a wide range of uses, from noise-cancelling to ultrasonic imaging. There has been a surge in interest in developing acoustic-based approaches for biological and biomedical applications in the last decade. This review focused on the application of surface acoustic waves (SAW) based on interdigital transducers (IDT) for live-cell investigations, such as cell manipulation, cell separation, cell seeding, cell migration, cell characteristics, and cell behaviours. The approach is also known as acoustofluidic, because the SAW device is coupled with a microfluidic system that contains live cells. This article provides an overview of several forms of IDT of SAW devices on recently used cells. Conclusively, a brief viewpoint and overview of the future application of SAW techniques in live-cell investigations were presented.
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Affiliation(s)
- Mazlee Bin Mazalan
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
- Correspondence: (M.B.M.); (W.S.W.K.Z.)
| | - Anas Mohd Noor
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
| | - Yufridin Wahab
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
| | - Shuhaida Yahud
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
| | - Wan Safwani Wan Kamarul Zaman
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Selangor, Malaysia
- Correspondence: (M.B.M.); (W.S.W.K.Z.)
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18
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Zhou Y, Liu J, Yan J, Guo S, Li T. Soft-Contact Acoustic Microgripper Based on a Controllable Gas-Liquid Interface for Biomicromanipulations. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2104579. [PMID: 34738717 DOI: 10.1002/smll.202104579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/05/2021] [Indexed: 06/13/2023]
Abstract
The manipulation of microscale bioentities is desired in many biological and biomedical applications. However, the potential unobservable damage to bioparticles due to rigid contact has always been a source of concern. Herein, a soft-contact acoustic microgripper to handle microparticles to improve the interaction safety is introduced. The system takes advantage of the acoustic-enhanced adhesion of flexible gas-liquid interfaces to capture-release, transport, and rotate the target, such as microbeads (20-65 µm) and zebrafish embryos (from 950 µm to 1.4 mm). The gas-liquid interface generated at the tip of a microcapillary can be precisely controlled by a pneumatic pressure source. The gas-liquid interface oscillation excited by acoustic energy imposes coupled radiation force and drag force on the microparticles, enabling multidimensional movements. Experiments with the microbeads are conducted to evaluate the claimed function and quantify the key parameters that influence the manipulation result. Additionally, 250 zebrafish embryos are captured, transported, and rotated. The hatching rate of the 250 manipulated embryos is approximately 98% similar to that of the nonmanipulated group, which proves the noninvasiveness of the method. The derived theories and experimental data indicate that the developed soft-contact microgripper is functional and beneficial for biological and medical applications.
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Affiliation(s)
- Yidi Zhou
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, 300132, China
- Hebei Key Laboratory of Smart Sensing and Human-Robot Interaction, Hebei University of Technology, Tianjin, 300132, China
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300132, China
| | - Jixiao Liu
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, 300132, China
- Hebei Key Laboratory of Smart Sensing and Human-Robot Interaction, Hebei University of Technology, Tianjin, 300132, China
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300132, China
| | - Junjia Yan
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, 300132, China
- Hebei Key Laboratory of Smart Sensing and Human-Robot Interaction, Hebei University of Technology, Tianjin, 300132, China
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300132, China
| | - Shijie Guo
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, 300132, China
- Hebei Key Laboratory of Smart Sensing and Human-Robot Interaction, Hebei University of Technology, Tianjin, 300132, China
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300132, China
| | - Tiejun Li
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300132, China
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19
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Zevnik J, Dular M. Liposome destruction by a collapsing cavitation microbubble: A numerical study. ULTRASONICS SONOCHEMISTRY 2021; 78:105706. [PMID: 34411844 PMCID: PMC8379499 DOI: 10.1016/j.ultsonch.2021.105706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/16/2021] [Accepted: 07/30/2021] [Indexed: 05/07/2023]
Abstract
Hydrodynamic cavitation poses as a promising new method for wastewater treatment as it has been shown to be able to eradicate bacteria, inactivate viruses, and destroy other biological structures, such as liposomes. Although engineers are already commercializing devices that employ cavitation, we are still not able to answer the fundamental question: What exactly are the damaging mechanisms of hydrodynamic cavitation in various applications? In this light, the present paper numerically addresses the interaction between a single cavitation microbubble and a nearby lipid vesicle of a similar size. A coupled fluid-structure interaction model is employed, from which three critical modes of vesicle deformation are identified and temporally placed in relation to their corresponding driving mechanisms: (a) unilateral stretching at the waist of the liposome during the first bubble collapse and subsequent shock wave propagation, (b) local wrinkling at the tip until the bubble rebounds, and (c) bilateral stretching at the tip of the liposome during the phase of a second bubble contraction. Here, unilateral and bilateral stretching refer to the local in-plane extension of the bilayer in one and both principal directions, respectively. Results are discussed with respect to critical dimensionless distance for vesicle poration and rupture. Liposomes with initially equilibrated envelopes are not expected to be structurally compromised in cases with δ>1.0, when a nearby collapsing bubble is not in their direct contact. However, the critical dimensionless distance for the case of an envelope with pre-existing pores is identified at δ=1.9. Additionally, the influence of liposome-bubble size ratio is addressed, from which a higher potential of larger bubbles for causing stretching-induced liposome destruction can be identified.
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Affiliation(s)
- Jure Zevnik
- University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva cesta 6, Ljubljana, Slovenia.
| | - Matevž Dular
- University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva cesta 6, Ljubljana, Slovenia
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20
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Sun Z, Zhuang L, Wei M, Sun H, Liu F, Tang B, Groenewold J, Zhou G. Bubble Manipulation Driven by Alternating Current Electrowetting: Oscillation Modes and Surface Detachment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6898-6904. [PMID: 34060843 DOI: 10.1021/acs.langmuir.1c00096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this paper, a millimeter-sized bubble in water pending on a substrate is manipulated by applying an alternating current (AC) electric field, known as electrowetting on dielectric. In this setup, standing waves on the bubble surface are observed. The amplitude of these waves varies with frequency, and three resonance peaks (21, 76, and 134 Hz) can be identified. By incorporating the nonlinear friction force for the contact line to an existing surface mode model, a significant improvement to explain the spectrum of the oscillations is obtained, predicting three peak positions, widths, and heights with good accuracy. We also show that bubble detachment correlates with the low-frequency resonance peak. It is found experimentally that if close enough to this peak, then bubbles at sufficiently high voltages are observed to detach from the substrate. This suggests that inertial effects can effectively promote bubble detachment. To confirm this hypothesis, the bubble dynamics is simulated with COMSOL using the full Navier-Stokes equation with a two-phase field and electrostatic stresses. It was found that the bubble experimental detachment process is quite well-reproduced in the simulation, confirming the role of fluid inertia for the detachment process. Given the nice correspondence between the experimental state diagrams and the theoretical modeling, this work contributes to identify a window for precise and reliable bubble manipulation by means of AC electrowetting.
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Affiliation(s)
- Zhongqian Sun
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Lei Zhuang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Miaoyang Wei
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Hailing Sun
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Feilong Liu
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Biao Tang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Jan Groenewold
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Research Institute, Utrecht University, Padualaan 8, Utrecht 3584 CH, The Netherlands
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
- Shenzhen Guohua Optoelectronics Tech. Co., Ltd., Shenzhen 518110, P.R. China
- Academy of Shenzhen Guohua Optoelectronics, Shenzhen 518110, P. R. China
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21
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Li Z, Yang X, Zhang Q, Yang W, Zhang H, Liu L, Liang W. Non-invasive acquisition of mechanical properties of cells via passive microfluidic mechanisms: A review. BIOMICROFLUIDICS 2021; 15:031501. [PMID: 34178202 PMCID: PMC8205512 DOI: 10.1063/5.0052185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/30/2021] [Indexed: 06/13/2023]
Abstract
The demand to understand the mechanical properties of cells from biomedical, bioengineering, and clinical diagnostic fields has given rise to a variety of research studies. In this context, how to use lab-on-a-chip devices to achieve accurate, high-throughput, and non-invasive acquisition of the mechanical properties of cells has become the focus of many studies. Accordingly, we present a comprehensive review of the development of the measurement of mechanical properties of cells using passive microfluidic mechanisms, including constriction channel-based, fluid-induced, and micropipette aspiration-based mechanisms. This review discusses how these mechanisms work to determine the mechanical properties of the cell as well as their advantages and disadvantages. A detailed discussion is also presented on a series of typical applications of these three mechanisms to measure the mechanical properties of cells. At the end of this article, the current challenges and future prospects of these mechanisms are demonstrated, which will help guide researchers who are interested to get into this area of research. Our conclusion is that these passive microfluidic mechanisms will offer more preferences for the development of lab-on-a-chip technologies and hold great potential for advancing biomedical and bioengineering research studies.
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Affiliation(s)
- Zhenghua Li
- School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
| | - Xieliu Yang
- School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
| | - Qi Zhang
- School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
| | - Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Hemin Zhang
- Department of Neurology, The People's Hospital of Liaoning Province, Shenyang 110016, China
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
| | - Wenfeng Liang
- School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
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22
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Li Y, Liu X, Huang Q, Ohta AT, Arai T. Bubbles in microfluidics: an all-purpose tool for micromanipulation. LAB ON A CHIP 2021; 21:1016-1035. [PMID: 33538756 DOI: 10.1039/d0lc01173h] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In recent decades, the integration of microfluidic devices and multiple actuation technologies at the microscale has greatly contributed to the progress of related fields. In particular, microbubbles are playing an increasingly important role in microfluidics because of their unique characteristics that lead to specific responses to different energy sources and gas-liquid interactions. Many effective and functional bubble-based micromanipulation strategies have been developed and improved, enabling various non-invasive, selective, and precise operations at the microscale. This review begins with a brief introduction of the morphological characteristics and formation of microbubbles. The theoretical foundations and working mechanisms of typical micromanipulations based on acoustic, thermodynamic, and chemical microbubbles in fluids are described. We critically review the extensive applications and the frontline advances of bubbles in microfluidics, including microflow patterns, position and orientation control, biomedical applications, and development of bubble-based microrobots. We lastly present an outlook to provide directions for the design and application of microbubble-based micromanipulation tools and attract the attention of relevant researchers to the enormous potential of microbubbles in microfluidics.
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Affiliation(s)
- Yuyang Li
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
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23
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Guo X, Sun M, Yang Y, Xu H, Liu J, He S, Wang Y, Xu L, Pang W, Duan X. Controllable Cell Deformation Using Acoustic Streaming for Membrane Permeability Modulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2002489. [PMID: 33552859 PMCID: PMC7856903 DOI: 10.1002/advs.202002489] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/03/2020] [Indexed: 05/24/2023]
Abstract
Hydrodynamic force loading platforms for controllable cell mechanical deformation play an essential role in modern cell technologies. Current systems require assistance from specific microstructures thus limiting the controllability and flexibility in cell shape modulation, and studies on real-time 3D cell morphology analysis are still absent. This article presents a novel platform based on acoustic streaming generated from a gigahertz device for cell shape control and real-time cell deformation analysis. Details in cell deformation and the restoration process are thoroughly studied on the platform, and cell behavior control at the microscale is successfully achieved by tuning the treating time, intensity, and wave form of the streaming. The application of this platform in cell membrane permeability modulation and analysis is also exploited. Based on the membrane reorganization during cell deformation, the effects of deformation extent and deformation patterns on membrane permeability to micro- and macromolecules are revealed. This technology has shown its unique superiorities in cell mechanical manipulation such as high flexibility, high accuracy, and pure fluid force operation, indicating its promising prospect as a reliable tool for cell property study and drug therapy development.
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Affiliation(s)
- Xinyi Guo
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
| | - Mengjie Sun
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
| | - Yang Yang
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
| | - Huihui Xu
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
| | - Ji Liu
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
| | - Shan He
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
| | - Yanyan Wang
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
| | - Linyan Xu
- College of Precision Instrument and Opto‐electronics EngineeringTianjin UniversityTianjin300072China
| | - Wei Pang
- College of Precision Instrument and Opto‐electronics EngineeringTianjin UniversityTianjin300072China
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology & InstrumentsTianjin UniversityTianjin300072China
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24
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An S, Ranaweera R, Luo L. Harnessing bubble behaviors for developing new analytical strategies. Analyst 2021; 145:7782-7795. [PMID: 33107897 DOI: 10.1039/d0an01497d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Gas bubbles are easily accessible and offer many unique characteristic properties of a gas/liquid two-phase system for developing new analytical methods. In this minireview, we discuss the newly developed analytical strategies that harness the behaviors of bubbles. Recent advancements include the utilization of the gas/liquid interfacial activity of bubbles for detection and preconcentration of surface-active compounds; the employment of the gas phase properties of bubbles for acoustic imaging and detection, microfluidic analysis, electrochemical sensing, and emission spectroscopy; and the application of the mass transport behaviors at the gas/liquid interface in gas sensing, biosensing, and nanofluidics. These studies have demonstrated the versatility of gas bubbles as a platform for developing new analytical strategies.
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Affiliation(s)
- Shizhong An
- School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China
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25
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Li Q, Yang X, Zhang P, Mo F, Si P, Kang X, Wang M, Zhang J. Dasatinib loaded nanostructured lipid carriers for effective treatment of corneal neovascularization. Biomater Sci 2021; 9:2571-2583. [DOI: 10.1039/d0bm01599g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dasa-NLC could significantly inhibit the corneal neovascularization.
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Affiliation(s)
- Qingqing Li
- School of Pharmacy
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Xianwei Yang
- School of Pharmacy
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Peipei Zhang
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Fei Mo
- School of Pharmacy
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Peiru Si
- School of Pharmacy
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Ximeng Kang
- School of Pharmacy
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Menghan Wang
- School of Pharmacy
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Jiye Zhang
- School of Pharmacy
- Health Science Center
- Xi'an Jiaotong University
- Xi'an
- P. R. China
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Dai L, Lin D, Wang X, Jiao N, Liu L. Integrated Assembly and Flexible Movement of Microparts Using Multifunctional Bubble Microrobots. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57587-57597. [PMID: 33301292 DOI: 10.1021/acsami.0c17518] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Industrial robots have been widely used for manufacturing and assembly in factories. However, at the microscale, most assembly technologies can only pattern the micromodules together loosely and can hardly combine the micromodules to directly form an entity that cannot be easily dispersed. In this study, surface bubbles are made to function as microrobots on a chip. These microrobots can move, fix, lift, and drop microparts and integratively assemble them into a tightly connected entity. As an example, the assembly of a pair of microparts with dovetails is considered. A jacklike bubble robot is used to lift and drop a micropart with a tail, whereas a mobile microrobot is used to push the other micropart with the corresponding socket to the proper position so that the tail can be inserted into the socket. The assembled microparts with the tail-socket joint can move as an entity without separation. Similarly, different types of parts are integratively assembled to form various structures such as gears, snake-shaped chains, and vehicles, which are then driven by bubble microrobots to perform different forms of movement. This assembly technology is simple and efficient and is expected to play an important role in micro-operation, modular assembly, and tissue engineering.
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Affiliation(s)
- Liguo Dai
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Daojing Lin
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaodong Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Niandong Jiao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China
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27
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Gao Y, Wu M, Lin Y, Xu J. Trapping and control of bubbles in various microfluidic applications. LAB ON A CHIP 2020; 20:4512-4527. [PMID: 33232419 DOI: 10.1039/d0lc00906g] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
As a simple, clean and effective tool, micro bubbles have enabled advances in various lab on a chip (LOC) applications recently. In bubble-based microfluidic applications, techniques for capturing and controlling the bubbles play an important role. Here we review active and passive techniques for bubble trapping and control in microfluidic applications. The active techniques are categorized based on various types of external forces from optical, electric, acoustic, mechanical and thermal fields. The passive approaches depend on surface tension, focusing on optimization of microgeometry and modification of surface properties. We discuss control techniques of size, location and stability of microbubbles and show how these bubbles are employed in various applications. To finalize, by highlighting the advantages of these approaches along with the current challenges, we discuss the future prospects of bubble trapping and control in microfluidic applications.
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Affiliation(s)
- Yuan Gao
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, USA.
| | - Mengren Wu
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, USA.
| | - Yang Lin
- Department of Mechanical, Industrial and Systems Engineering, University of Rhode Island, Kingston, USA
| | - Jie Xu
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, USA.
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28
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Inserra C, Regnault G, Cleve S, Mauger C, Doinikov AA. Acoustic microstreaming produced by nonspherical oscillations of a gas bubble. IV. Case of modes n and m. Phys Rev E 2020; 102:043103. [PMID: 33212592 DOI: 10.1103/physreve.102.043103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
This paper is the conclusion of work done in our previous papers [A. A. Doinikov et al., Phys. Rev. E 100, 033104 (2019)10.1103/PhysRevE.100.033104; Phys. Rev. E 100, 033105 (2019)10.1103/PhysRevE.100.033105]. The overall aim of the study is to develop a theory for modeling the velocity field of acoustic microstreaming produced by nonspherical oscillations of a gas bubble. In our previous papers, general equations were derived to describe the velocity field of acoustic microstreaming produced by modes m and n of bubble oscillations. Particular cases of mode interaction were derived, such as the 0-n, 1-1, 1-m, and n-n interactions. Here the general case of interaction between modes n and m, n>m, is solved analytically. Solutions are expressed in terms of complex mode amplitudes, meaning that the mode amplitudes are assumed to be known and serve as input data for the calculation of the velocity field of microstreaming. No restrictions are imposed on the ratio of the bubble radius to the viscous penetration depth. The n-m interaction results in specific streaming patterns: At large distance from the bubble interface the pattern exhibits 2|n-m| lobes, while 2min(m,n) lobes exist in the bubble vicinity. The spatial organization of the recirculation zones is unique for the interaction of two distinct nonspherical modes and therefore appears as a signature of the n-m interaction.
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Affiliation(s)
- Claude Inserra
- Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, INSERM, UMR 1032, LabTAU, F-69003 Lyon, France
| | - Gabriel Regnault
- Univ Lyon, École Centrale de Lyon, INSA de Lyon, CNRS, LMFA UMR 5509, F-69134 Écully, France
| | - Sarah Cleve
- Univ Lyon, École Centrale de Lyon, INSA de Lyon, CNRS, LMFA UMR 5509, F-69134 Écully, France
| | - Cyril Mauger
- Univ Lyon, École Centrale de Lyon, INSA de Lyon, CNRS, LMFA UMR 5509, F-69134 Écully, France
| | - Alexander A Doinikov
- Univ Lyon, École Centrale de Lyon, INSA de Lyon, CNRS, LMFA UMR 5509, F-69134 Écully, France
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29
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Voß J, Wittkowski R. On the shape-dependent propulsion of nano- and microparticles by traveling ultrasound waves. NANOSCALE ADVANCES 2020; 2:3890-3899. [PMID: 36132771 PMCID: PMC9417689 DOI: 10.1039/d0na00099j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 07/20/2020] [Indexed: 05/12/2023]
Abstract
We address the propulsion mechanism of ultrasound-propelled nano- and microparticles that are exposed to a traveling ultrasound wave. Based on direct computational fluid dynamics simulations, we study the effect of two important aspects of the particle shape on the propulsion: rounded vs. pointed and filled vs. hollow shapes. We also study the flow field generated around such particles. Our results reveal that pointedness leads to an increase of the propulsion speed, whereas it is not significantly affected by hollowness. Furthermore, we show that the flow field near to ultrasound-propelled particles can look similar to the flow field generated by pusher squirmers.
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Affiliation(s)
- Johannes Voß
- Institut für Theoretische Physik, Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster D-48149 Münster Germany
| | - Raphael Wittkowski
- Institut für Theoretische Physik, Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster D-48149 Münster Germany
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30
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Liu B, Ma Z, Yang J, Gao G, Liu H. A Concentration Gradients Tunable Generator with Adjustable Position of the Acoustically Oscillating Bubbles. MICROMACHINES 2020; 11:mi11090827. [PMID: 32878158 PMCID: PMC7570149 DOI: 10.3390/mi11090827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/26/2020] [Accepted: 08/29/2020] [Indexed: 01/29/2023]
Abstract
It is essential to control concentration gradients at specific locations for many biochemical experiments. This paper proposes a tunable concentration gradient generator actuated by acoustically oscillating bubbles trapped in the bubble channels using a controllable position based on the gas permeability of polydimethylsiloxane (PDMS). The gradient generator consists of a glass substrate, a PDMS chip, and a piezoelectric transducer. When the trapped bubbles are activated by acoustic waves, the solution near the gas–liquid interface is mixed. The volume of the bubbles and the position of the gas–liquid interface are regulated through the permeability of the PDMS wall. The tunable concentration gradient can be realized by changing the numbers and positions of the bubbles that enable the mixing of fluids in the main channel, and the amplitude of the applied voltage. This new device is easy to fabricate, responsive, and biocompatible, and therefore has great application prospects. In particular, it is suitable for biological research with high requirements for temporal controllability.
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Affiliation(s)
- Bendong Liu
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (Z.M.); (J.Y.); (G.G.); (H.L.)
- Correspondence: ; Tel.: +86-010-67396187
| | - Zhigao Ma
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (Z.M.); (J.Y.); (G.G.); (H.L.)
| | - Jiahui Yang
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (Z.M.); (J.Y.); (G.G.); (H.L.)
- Electrical and Mechanical College, Beijing Vocational College of Agriculture, Beijing 102208, China
| | - Guohua Gao
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (Z.M.); (J.Y.); (G.G.); (H.L.)
| | - Haibin Liu
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (Z.M.); (J.Y.); (G.G.); (H.L.)
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31
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Topal T, Fan Z, Deng LY, Krebsbach PH, Deng CX. Integrin-Targeted Cyclic Forces Accelerate Neural Tube-Like Rosette Formation from Human Embryonic Stem Cells. ACTA ACUST UNITED AC 2020; 3:e1900064. [PMID: 32648720 DOI: 10.1002/adbi.201900064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/29/2019] [Indexed: 11/11/2022]
Abstract
Mechanical forces play important roles in human embryonic stem cell (hESC) differentiation. To investigate the impact of dynamic mechanical forces on neural induction of hESCs, this study employs acoustic tweezing cytometry (ATC) to apply cyclic forces/strains to hESCs by actuating integrin-bound microbubbles using ultrasound pulses. Accelerated neural induction of hESCs is demonstrated as the result of combined action of ATC and neural induction medium (NIM). Specifically, application of ATC for 30 min followed by culture in NIM upregulates neuroecdoderm markers Pax6 and Sox1 as early as 6 h after ATC, and induces neural tube-like rosette formation at 48 h after ATC. In contrast, no changes are observed in hESCs cultured in NIM without ATC treatment. In the absence of NIM, ATC application decreases Oct4, but does not increase Pax6 and Sox1 expression, nor does it induce neural rossette formation. The effects of ATC are abolished by inhibition of FAK, myosin activity, and RhoA/ROCK signaling. Taken together, the results reveal a synergistic action of ATC and NIM as an integrated mechanobiology mechanism that requires both integrin-targeted cyclic forces and chemical factors for accelerated neural induction of hESCs.
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Affiliation(s)
- Tuğba Topal
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48105, USA.,Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Zhenzhen Fan
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48105, USA
| | - Laura Y Deng
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Paul H Krebsbach
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48105, USA.,Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA.,UCLA School of Dentistry, Los Angeles, CA, 90095, USA
| | - Cheri X Deng
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48105, USA.,Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
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32
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Chen P, Li S, Guo Y, Zeng X, Liu BF. A review on microfluidics manipulation of the extracellular chemical microenvironment and its emerging application to cell analysis. Anal Chim Acta 2020; 1125:94-113. [PMID: 32674786 DOI: 10.1016/j.aca.2020.05.065] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/22/2022]
Abstract
Spatiotemporal manipulation of extracellular chemical environments with simultaneous monitoring of cellular responses plays an essential role in exploring fundamental biological processes and expands our understanding of underlying mechanisms. Despite the rapid progress and promising successes in manipulation strategies, many challenges remain due to the small size of cells and the rapid diffusion of chemical molecules. Fortunately, emerging microfluidic technology has become a powerful approach for precisely controlling the extracellular chemical microenvironment, which benefits from its integration capacity, automation, and high-throughput capability, as well as its high resolution down to submicron. Here, we summarize recent advances in microfluidics manipulation of the extracellular chemical microenvironment, including the following aspects: i) Spatial manipulation of chemical microenvironments realized by convection flow-, diffusion-, and droplet-based microfluidics, and surface chemical modification; ii) Temporal manipulation of chemical microenvironments enabled by flow switching/shifting, moving/flowing cells across laminar flows, integrated microvalves/pumps, and droplet manipulation; iii) Spatiotemporal manipulation of chemical microenvironments implemented by a coupling strategy and open-space microfluidics; and iv) High-throughput manipulation of chemical microenvironments. Finally, we briefly present typical applications of the above-mentioned technical advances in cell-based analyses including cell migration, cell signaling, cell differentiation, multicellular analysis, and drug screening. We further discuss the future improvement of microfluidics manipulation of extracellular chemical microenvironments to fulfill the needs of biological and biomedical research and applications.
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Affiliation(s)
- Peng Chen
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shunji Li
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yiran Guo
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xuemei Zeng
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Bi-Feng Liu
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
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33
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Ahmed H, Ramesan S, Lee L, Rezk AR, Yeo LY. On-Chip Generation of Vortical Flows for Microfluidic Centrifugation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1903605. [PMID: 31535785 DOI: 10.1002/smll.201903605] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/20/2019] [Indexed: 05/21/2023]
Abstract
Microcentrifugation constitutes an important part of the microfluidic toolkit in a similar way that centrifugation is crucial to many macroscopic procedures, given that micromixing, sample preconcentration, particle separation, component fractionation, and cell agglomeration are essential operations in small scale processes. Yet, the dominance of capillary and viscous effects, which typically tend to retard flow, over inertial and gravitational forces, which are often useful for actuating flows and hence centrifugation, at microscopic scales makes it difficult to generate rotational flows at these dimensions, let alone with sufficient vorticity to support efficient mixing, separation, concentration, or aggregation. Herein, the various technologies-both passive and active-that have been developed to date for vortex generation in microfluidic devices are reviewed. Various advantages or limitations associated with each are outlined, in addition to highlighting the challenges that need to be overcome for their incorporation into integrated microfluidic devices.
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Affiliation(s)
- Heba Ahmed
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Shwathy Ramesan
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Lillian Lee
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Amgad R Rezk
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Leslie Y Yeo
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
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34
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On-chip simultaneous rotation of large-scale cells by acoustically oscillating bubble array. Biomed Microdevices 2020; 22:13. [DOI: 10.1007/s10544-020-0470-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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35
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Huang L, Liang F, Feng Y, Zhao P, Wang W. On-chip integrated optical stretching and electrorotation enabling single-cell biophysical analysis. MICROSYSTEMS & NANOENGINEERING 2020; 6:57. [PMID: 34567668 PMCID: PMC8433418 DOI: 10.1038/s41378-020-0162-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 01/08/2020] [Accepted: 03/31/2020] [Indexed: 05/05/2023]
Abstract
Cells have different intrinsic markers such as mechanical and electrical properties, which may be used as specific characteristics. Here, we present a microfluidic chip configured with two opposing optical fibers and four 3D electrodes for multiphysical parameter measurement. The chip leverages optical fibers to capture and stretch a single cell and uses 3D electrodes to achieve rotation of the single cell. According to the stretching deformation and rotation spectrum, the mechanical and dielectric properties can be extracted. We provided proof of concept by testing five types of cells (HeLa, A549, HepaRG, MCF7 and MCF10A) and determined five biophysical parameters, namely, shear modulus, steady-state viscosity, and relaxation time from the stretching deformation and area-specific membrane capacitance and cytoplasm conductivity from the rotation spectra. We showed the potential of the chip in cancer research by observing subtle changes in the cellular properties of transforming growth factor beta 1 (TGF-β1)-induced epithelial-mesenchymal transition (EMT) A549 cells. The new chip provides a microfluidic platform capable of multiparameter characterization of single cells, which can play an important role in the field of single-cell research.
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Affiliation(s)
- Liang Huang
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing, China
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei, China
| | - Fei Liang
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing, China
| | - Yongxiang Feng
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing, China
| | - Peng Zhao
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing, China
| | - Wenhui Wang
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing, China
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36
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Dai L, Ge Z, Jiao N, Liu L. 2D to 3D Manipulation and Assembly of Microstructures Using Optothermally Generated Surface Bubble Microrobots. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902815. [PMID: 31539203 DOI: 10.1002/smll.201902815] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/15/2019] [Indexed: 06/10/2023]
Abstract
Hydrogel microstructures that encapsulate cells can be assembled into tissues and have broad applications in biology and medicine. However, 3D posture control for a single arbitrary microstructure remains a challenge. A novel 3D manipulation and assembly technique based on optothermally generated bubble robots is proposed. The generation, rate of growth, and motion of a microbubble robot can be controlled by modulating the power of a laser focused on the interface between the substrate and a fluid. In addition to 2D operations, bubble robots are able to perform 3D manipulations. The 3D properties of hydrogel microstructures are adjusted arbitrarily, and convex and concave structures with different heights are designed. Furthermore, annular micromodules are assembled into 3D constructs, including tubular and concentric constructs. A variety of hydrogel microstructures of different sizes and shapes are operated and assembled in both 2D and 3D conformations by bubble robots. The manipulation and assembly methods are simple, rapid, versatile, and can be used for fabricating tissue constructs.
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Affiliation(s)
- Liguo Dai
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhixing Ge
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Niandong Jiao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, 110016, China
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37
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Abstract
Cellular analysis is a central concept for both biology and medicine. Over the past two decades, acoustofluidic technologies, which marry acoustic waves with microfluidics, have significantly contributed to the development of innovative approaches for cellular analysis. Acoustofluidic technologies enable precise manipulations of cells and the fluids that confine them, and these capabilities have been utilized in many cell analysis applications. In this review article, we examine various applications where acoustofluidic methods have been implemented, including cell imaging, cell mechanotyping, circulating tumor cell phenotyping, sample preparation in clinics, and investigation of cell-cell interactions and cell-environment responses. We also provide our perspectives on the technological advantages, limitations, and potential future directions for this innovative field of methods.
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Affiliation(s)
- Yuliang Xie
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Hunter Bachman
- Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27707, USA
| | - Tony Jun Huang
- Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27707, USA
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38
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Fan Z, Xue X, Perera R, Nasr Esfahani S, Exner AA, Fu J, Deng CX. Acoustic Actuation of Integrin-Bound Microbubbles for Mechanical Phenotyping during Differentiation and Morphogenesis of Human Embryonic Stem Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1803137. [PMID: 30427572 PMCID: PMC7228745 DOI: 10.1002/smll.201803137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/18/2018] [Indexed: 05/25/2023]
Abstract
Early human embryogenesis is a dynamic developmental process, involving continuous and concomitant changes in gene expression, structural reorganization, and cellular mechanics. However, the lack of investigation methods has limited the understanding of how cellular mechanical properties change during early human embryogenesis. In this study, ultrasound actuation of functionalized microbubbles targeted to integrin (acoustic tweezing cytometry, ATC) is employed for in situ measurement of cell stiffness during human embryonic stem cell (hESC) differentiation and morphogenesis. Cell stiffness, which is regulated by cytoskeleton structure, remains unchanged in undifferentiated hESCs, but significantly increases during neural differentiation. Further, using the recently established in vitro 3D embryogenesis models, ATC measurements reveal that cells continue to stiffen while maintaining pluripotency during epiblast cyst formation. In contrast, during amniotic cyst formation, cells first become stiffer during luminal cavity formation, but softens significantly when cells differentiate to form amniotic cysts. These results suggest that cell stiffness changes not only due to 3D spatial organization, but also with cell fate change. ATC therefore provides a versatile platform for in situ measurement of cellular mechanical property, and cell stiffness may be used as a mechanical biomarker for cell lineage diversification and cell fate specification during embryogenesis.
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Affiliation(s)
- Zhenzhen Fan
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Xufeng Xue
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Reshani Perera
- Department of Radiology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Sajedeh Nasr Esfahani
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Agata A Exner
- Department of Radiology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Jianping Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Cheri X Deng
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
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39
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Memoli G, Baxter KO, Jones HG, Mingard KP, Zeqiri B. Acoustofluidic Measurements on Polymer-Coated Microbubbles: Primary and Secondary Bjerknes Forces. MICROMACHINES 2018; 9:E404. [PMID: 30424337 PMCID: PMC6187510 DOI: 10.3390/mi9080404] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/05/2018] [Accepted: 08/09/2018] [Indexed: 12/27/2022]
Abstract
The acoustically-driven dynamics of isolated particle-like objects in microfluidic environments is a well-characterised phenomenon, which has been the subject of many studies. Conversely, very few acoustofluidic researchers looked at coated microbubbles, despite their widespread use in diagnostic imaging and the need for a precise characterisation of their acoustically-driven behaviour, underpinning therapeutic applications. The main reason is that microbubbles behave differently, due to their larger compressibility, exhibiting much stronger interactions with the unperturbed acoustic field (primary Bjerknes forces) or with other bubbles (secondary Bjerknes forces). In this paper, we study the translational dynamics of commercially-available polymer-coated microbubbles in a standing-wave acoustofluidic device. At increasing acoustic driving pressures, we measure acoustic forces on isolated bubbles, quantify bubble-bubble interaction forces during doublet formation and study the occurrence of sub-wavelength structures during aggregation. We present a dynamic characterisation of microbubble compressibility with acoustic pressure, highlighting a threshold pressure below which bubbles can be treated as uncoated. Thanks to benchmarking measurements under a scanning electron microscope, we interpret this threshold as the onset of buckling, providing a quantitative measurement of this parameter at the single-bubble level. For acoustofluidic applications, our results highlight the limitations of treating microbubbles as a special case of solid particles. Our findings will impact applications where knowing the buckling pressure of coated microbubbles has a key role, like diagnostics and drug delivery.
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Affiliation(s)
- Gianluca Memoli
- School of Engineering and Informatics, University of Sussex, BN1 9QJ Falmer, UK.
- National Physical Laboratory, TW11 0LW Teddington, UK.
| | - Kate O Baxter
- National Physical Laboratory, TW11 0LW Teddington, UK.
| | - Helen G Jones
- National Physical Laboratory, TW11 0LW Teddington, UK.
| | - Ken P Mingard
- National Physical Laboratory, TW11 0LW Teddington, UK.
| | - Bajram Zeqiri
- National Physical Laboratory, TW11 0LW Teddington, UK.
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Huang PH, Chan CY, Li P, Wang Y, Nama N, Bachman H, Huang TJ. A sharp-edge-based acoustofluidic chemical signal generator. LAB ON A CHIP 2018; 18:1411-1421. [PMID: 29668002 PMCID: PMC6064650 DOI: 10.1039/c8lc00193f] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Resolving the temporal dynamics of cell signaling pathways is essential for regulating numerous downstream functions, from gene expression to cellular responses. Mapping these signaling pathways requires the exposure of cells to time-varying chemical signals; these are difficult to generate and control over a wide temporal range. Herein, we present an acoustofluidic chemical signal generator based on a sharp-edge-based micromixing strategy. The device, simply by modulating the driving signals of an acoustic transducer including the ON/OFF switching frequency, actuation time and duty cycle, is capable of generating both single-pulse and periodic chemical signals that are temporally controllable in terms of stimulation period, stimulation duration and duty cycle. We also demonstrate the device's applicability and versatility for cell signaling studies by probing the calcium (Ca2+) release dynamics of three different types of cells stimulated by ionomycin signals of different shapes. Upon short single-pulse ionomycin stimulation (∼100 ms) generated by our device, we discover that cells tend to dynamically adjust the intracellular level of Ca2+ through constantly releasing and accepting Ca2+ to the cytoplasm and from the extracellular environment, respectively. With advantages such as simple fabrication and operation, compact device design, and reliability and versatility, our device will enable decoding of the temporal characteristics of signaling dynamics for various physiological processes.
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Affiliation(s)
- Po-Hsun Huang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA.
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41
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Jung JH, Destgeer G, Park J, Ahmed H, Park K, Sung HJ. Microfluidic flow switching via localized acoustic streaming controlled by surface acoustic waves. RSC Adv 2018; 8:3206-3212. [PMID: 35541169 PMCID: PMC9077511 DOI: 10.1039/c7ra11194k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 01/04/2018] [Indexed: 11/21/2022] Open
Abstract
Acoustic streaming flow induced by high-frequency surface acoustic waves has been used to switch streams of two immiscible fluids flowing in parallel through a bifurcating microchannel with an H-shaped junction at the centre.
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Affiliation(s)
- Jin Ho Jung
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Korea
| | | | - Jinsoo Park
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Korea
| | - Husnain Ahmed
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Korea
| | - Kwangseok Park
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Korea
| | - Hyung Jin Sung
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Korea
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42
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Xie Y, Zhao C. An optothermally generated surface bubble and its applications. NANOSCALE 2017; 9:6622-6631. [PMID: 28485456 DOI: 10.1039/c7nr01360d] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Under laser illumination, a solid-state surface or nanostructure can turn into a micro/nano heating source with the so-called optothermal effect. This effect allows for non-invasive control of heat at the micro/nanoscale. In the presence of a liquid, a surface bubble can be generated on top of the solid surface or nanostructure at a temperature much higher than the boiling point of the liquid. The high temperature and the fluid flow associated with the optothermally generated surface bubble enable many intriguing applications, ranging from the micro/nano-manipulation of fluids, particles, cells, and light to the synthesis of micro/nano-structures under ambient conditions. In this review article, we present the fundamentals, recent developments, and future perspectives in this emerging field.
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Affiliation(s)
- Yuliang Xie
- Howard Hughes Medical Institute, University of Iowa, Iowa City, IA 52242, USA
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43
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Dai L, Jiao N, Wang X, Liu L. A Micromanipulator and Transporter Based on Vibrating Bubbles in an Open Chip Environment. MICROMACHINES 2017. [PMCID: PMC6189831 DOI: 10.3390/mi8040130] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A novel micromanipulation technique of multi-objectives based on vibrating bubbles in an open chip environment is described in this paper. Bubbles were created in an aqueous medium by the thermal energy converted from a laser. When the piezoelectric stack fixed under the chip vibrated the bubbles, micro-objects (microparticles, cells, etc.) rapidly moved towards the bubbles. Results from numerical simulation demonstrate that convective flow around the bubbles can provide forces to capture objects. Since bubbles can be generated at arbitrary destinations in the open chip environment, they can act as both micromanipulators and transporters. As a result, micro- and bio-objects could be collected and transported effectively as masses in the open chip environment. This makes it possible for scientific instruments, such as atomic force microscopy (AFM) and scanning ion conductive microscopy (SICM), to operate the micro-objects directly in an open chip environment.
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Affiliation(s)
- Liguo Dai
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 10016, China; (L.D.); (X.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Niandong Jiao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 10016, China; (L.D.); (X.W.)
- Correspondence: (N.J.); (L.L.); Tel.: +86-24-2397-0540 (N.J.); +86-24-2397-0181 (L.L.)
| | - Xiaodong Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 10016, China; (L.D.); (X.W.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 10016, China; (L.D.); (X.W.)
- Correspondence: (N.J.); (L.L.); Tel.: +86-24-2397-0540 (N.J.); +86-24-2397-0181 (L.L.)
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Heida T, Neubauer JW, Seuss M, Hauck N, Thiele J, Fery A. Mechanically Defined Microgels by Droplet Microfluidics. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600418] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Thomas Heida
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Jens W. Neubauer
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Maximilian Seuss
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Nicolas Hauck
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
- Leibniz Research Cluster (LRC); Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Julian Thiele
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
- Leibniz Research Cluster (LRC); Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Andreas Fery
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
- Department of Physical Chemistry of Polymeric Materials; Technische Universität Dresden; Hohe Str. 6 01069 Dresden Germany
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