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Chícharo A, Caetano DM, Cardoso S, Freitas P. Evolution in Automatized Detection of Cells: Advances in Magnetic Microcytometers for Cancer Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1379:413-444. [DOI: 10.1007/978-3-031-04039-9_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Graybill PM, Bollineni RK, Sheng Z, Davalos RV, Mirzaeifar R. A constriction channel analysis of astrocytoma stiffness and disease progression. BIOMICROFLUIDICS 2021; 15:024103. [PMID: 33763160 PMCID: PMC7968935 DOI: 10.1063/5.0040283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/23/2021] [Indexed: 05/12/2023]
Abstract
Studies have demonstrated that cancer cells tend to have reduced stiffness (Young's modulus) compared to their healthy counterparts. The mechanical properties of primary brain cancer cells, however, have remained largely unstudied. To investigate whether the stiffness of primary brain cancer cells decreases as malignancy increases, we used a microfluidic constriction channel device to deform healthy astrocytes and astrocytoma cells of grade II, III, and IV and measured the entry time, transit time, and elongation. Calculating cell stiffness directly from the experimental measurements is not possible. To overcome this challenge, finite element simulations of the cell entry into the constriction channel were used to train a neural network to calculate the stiffness of the analyzed cells based on their experimentally measured diameter, entry time, and elongation in the channel. Our study provides the first calculation of stiffness for grades II and III astrocytoma and is the first to apply a neural network analysis to determine cell mechanical properties from a constriction channel device. Our results suggest that the stiffness of astrocytoma cells is not well-correlated with the cell grade. Furthermore, while other non-central-nervous-system cell types typically show reduced stiffness of malignant cells, we found that most astrocytoma cell lines had increased stiffness compared to healthy astrocytes, with lower-grade astrocytoma having higher stiffness values than grade IV glioblastoma. Differences in nucleus-to-cytoplasm ratio only partly explain differences in stiffness values. Although our study does have limitations, our results do not show a strong correlation of stiffness with cell grade, suggesting that other factors may play important roles in determining the invasive capability of astrocytoma. Future studies are warranted to further elucidate the mechanical properties of astrocytoma across various pathological grades.
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Affiliation(s)
| | - R. K. Bollineni
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Z. Sheng
- Department of Internal Medicine, Virginia Tech Carilion School of Medicine and Virginia Tech Fralin Biomedical Research Institute, Roanoke, Virginia 24016, USA
| | - R. V. Davalos
- Authors to whom correspondence should be addressed: and
| | - R. Mirzaeifar
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
- Authors to whom correspondence should be addressed: and
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Huang H, Dai C, Shen H, Gu M, Wang Y, Liu J, Chen L, Sun L. Recent Advances on the Model, Measurement Technique, and Application of Single Cell Mechanics. Int J Mol Sci 2020; 21:E6248. [PMID: 32872378 PMCID: PMC7504142 DOI: 10.3390/ijms21176248] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/19/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023] Open
Abstract
Since the cell was discovered by humans, it has been an important research subject for researchers. The mechanical response of cells to external stimuli and the biomechanical response inside cells are of great significance for maintaining the life activities of cells. These biomechanical behaviors have wide applications in the fields of disease research and micromanipulation. In order to study the mechanical behavior of single cells, various cell mechanics models have been proposed. In addition, the measurement technologies of single cells have been greatly developed. These models, combined with experimental techniques, can effectively explain the biomechanical behavior and reaction mechanism of cells. In this review, we first introduce the basic concept and biomechanical background of cells, then summarize the research progress of internal force models and experimental techniques in the field of cell mechanics and discuss the latest mechanical models and experimental methods. We summarize the application directions of cell mechanics and put forward the future perspectives of a cell mechanics model.
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Affiliation(s)
| | | | | | | | | | - Jizhu Liu
- School of Mechanical and Electric Engineering, Jiangsu Provincial Key Laboratory of Advanced Robotics, Soochow University, Suzhou 215123, China; (H.H.); (C.D.); (H.S.); (M.G.); (Y.W.); (L.S.)
| | - Liguo Chen
- School of Mechanical and Electric Engineering, Jiangsu Provincial Key Laboratory of Advanced Robotics, Soochow University, Suzhou 215123, China; (H.H.); (C.D.); (H.S.); (M.G.); (Y.W.); (L.S.)
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Sano M, Kaji N, Rowat AC, Yasaki H, Shao L, Odaka H, Yasui T, Higashiyama T, Baba Y. Microfluidic Mechanotyping of a Single Cell with Two Consecutive Constrictions of Different Sizes and an Electrical Detection System. Anal Chem 2019; 91:12890-12899. [PMID: 31442026 DOI: 10.1021/acs.analchem.9b02818] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The mechanical properties of a cell, which include parameters such as elasticity, inner pressure, and tensile strength, are extremely important because changes in these properties are indicative of diseases ranging from diabetes to malignant transformation. Considering the heterogeneity within a population of cancer cells, a robust measurement system at the single cell level is required for research and in clinical purposes. In this study, a potential microfluidic device for high-throughput and practical mechanotyping were developed to investigate the deformability and sizes of cells through a single run. This mechanotyping device consisted of two different sizes of consecutive constrictions in a microchannel and measured the size of cells and related deformability during transit. Cell deformability was evaluated based on the transit and on the effects of cytoskeleton-affecting drugs, which were detected within 50 ms. The mechanotyping device was able to also measure a cell cycle without the use of fluorescent or protein tags.
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Affiliation(s)
- Mamiko Sano
- Department of Biomolecular Engineering, Graduate School of Engineering , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan.,Institute of Nano-Life-Systems, Institutes of Innovation for Future Society , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan
| | - Noritada Kaji
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan.,Department of Applied Chemistry, Graduate School of Engineering , Kyushu University , Moto-oka 744 , Nishi-ku, Fukuoka 819-0395 , Japan.,Japan Science and Technology Agency, PRESTO , 4-1-8 Honcho , Kawaguchi , Saitama 332-0012 , Japan
| | - Amy C Rowat
- Department of Integrative Biology & Physiology , University of California Los Angeles , 610 Charles E Young Dr. East , Los Angeles , California 90095 , United States
| | - Hirotoshi Yasaki
- Department of Biomolecular Engineering, Graduate School of Engineering , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan.,Institute of Nano-Life-Systems, Institutes of Innovation for Future Society , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan
| | - Long Shao
- AGC Inc. , Suehiro 1-1 , Tsurumi-ku, Yokohama City , Kanagawa 230-0045 , Japan
| | - Hidefumi Odaka
- AGC Inc. , Suehiro 1-1 , Tsurumi-ku, Yokohama City , Kanagawa 230-0045 , Japan
| | - Takao Yasui
- Department of Biomolecular Engineering, Graduate School of Engineering , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan.,Institute of Nano-Life-Systems, Institutes of Innovation for Future Society , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan.,Japan Science and Technology Agency, PRESTO , 4-1-8 Honcho , Kawaguchi , Saitama 332-0012 , Japan
| | - Tetsuya Higashiyama
- Institute of Transformative Bio-Molecules (ITbM) , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8602 , Japan.,Division of Biological Science, Graduate School of Science , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8602 , Japan
| | - Yoshinobu Baba
- Department of Biomolecular Engineering, Graduate School of Engineering , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan.,Institute of Nano-Life-Systems, Institutes of Innovation for Future Society , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan.,Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) , Hayashi-cho 2217-14 , Takamatsu 761-0395 , Japan.,College of Pharmacy , Kaohsiung Medical University , 100, Shih-Chuan First Road , Kaohsiung , 807 , Taiwan, R.O.C
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Li H, Liu W, Kan R. A compact low-noise photodiode detection system for chemiluminescence nitric oxide analyzer. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:046103. [PMID: 31043039 DOI: 10.1063/1.5082400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
A compact, low noise, and high gain photon detector with the size of 50 mm × 50 mm × 48 mm has been developed for a nitric oxide (NO) chemiluminescence analyzer based on a temperature-stabilized photodiode (PD). A deviation of 0.01 °C was realized based on the design of a highly precise temperature control system to avoid signal fluctuation and baseline drift caused by environmental temperature fluctuation. At an optimized temperature of 23 °C, the noise level of 0.088 mV of the PD detector with a gain of 1011 V/A was obtained. The limit of quantitative detection for NO achieved was 25 ppb (S/N = 10), and the coefficient of determination R2 was 0.999 in the range of 0.1-20 ppm.
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Affiliation(s)
- Hang Li
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
| | - Wenqing Liu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
| | - Ruifeng Kan
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
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Lipowsky HH, Bowers DT, Banik BL, Brown JL. Mesenchymal Stem Cell Deformability and Implications for Microvascular Sequestration. Ann Biomed Eng 2018; 46:640-654. [PMID: 29352448 PMCID: PMC5862759 DOI: 10.1007/s10439-018-1985-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/16/2018] [Indexed: 02/07/2023]
Abstract
Mesenchymal stem cells (MSCs) have received considerable attention in regenerative medicine, particularly in light of prospects for targeted delivery by intra-arterial injection. However, little is known about the mechanics of MSC sequestration in the microvasculature and the yield pressure (PY), above which MSCs will pass through microvessels of a given diameter. The objectives of the current study were to delineate the dependency of PY on cell size and the heterogeneity of cell mechanical properties and diameters (DCELL) of cultured MSCs. To this end the transient filtration test was employed to elucidate the mean filtration pressure (〈PY〉) for an ensemble of pores of a given size (DPORE) similar to in vivo microvessels. Cultured MSCs had a log-normal distribution of cell diameters (DCELL) with a mean of 15.8 ± 0.73 SD μm. MSC clearance from track-etched polycarbonate filters was studied for pore diameters of 7.3-15.4 μm. The pressure required to clear cells from filters with 30-85 × 103 pores rose exponentially with the ratio λ = DCELL/DPORE for 1.1 ≤ λ ≤ 2.2. The clearance of cells from each filter was characterized by a log-normal distribution in PY, with a mean filtration pressure of 0.02 ≤ 〈PY〉 ≤ 6.7 cmH2O. For λ ≤ 1.56, the yield pressure (PY) was well represented by the cortical shell model of a cell with a viscous interior encapsulated by a shell under cortical tension τ0 = 0.99 ± 0.42 SD dyn/cm. For λ > 1.56, the 〈PY〉 characteristic of the cell population rose exponentially with λ. Analysis of the mean filtration pressure (〈PY〉) of each sample suggested that the larger diameter cells that skewed the distribution of DCELL contributed to about 20% of the mean filtration pressure. Further, if all cells had the same deformability (i.e., PY as a function of λ) as the average cell population, then 〈PY〉 would have risen an order of magnitude above the average from fivefold at λ = 1.56 to 200-fold at λ = 2.1. Comparison of 〈PY〉 to published microvascular pressures suggested that 〈PY〉 may exceed microvessel pressure drops for λ exceeding 2.1, and rise 14-fold above capillary pressure drop at λ = 3 leading to 100% sequestration. However, due to the large variance of in vivo microvascular pressures entrapment of MSCs may be mitigated. Thus it is suggested that selecting fractions of the MSC population according to cell deformability may permit optimization of entrapment at sites targeted for tissue regeneration.
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Affiliation(s)
- Herbert H Lipowsky
- Department of Biomedical Engineering, The Pennsylvania State University, 215 Hallowell Bldg, University Park, PA, 16802, USA.
| | - Daniel T Bowers
- Department of Biomedical Engineering, The Pennsylvania State University, 215 Hallowell Bldg, University Park, PA, 16802, USA
| | - Brittany L Banik
- Department of Biomedical Engineering, The Pennsylvania State University, 215 Hallowell Bldg, University Park, PA, 16802, USA
| | - Justin L Brown
- Department of Biomedical Engineering, The Pennsylvania State University, 215 Hallowell Bldg, University Park, PA, 16802, USA
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Khan ZS, Kamyabi N, Hussain F, Vanapalli SA. Passage times and friction due to flow of confined cancer cells, drops, and deformable particles in a microfluidic channel. CONVERGENT SCIENCE PHYSICAL ONCOLOGY 2017. [DOI: 10.1088/2057-1739/aa5f60] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Aoyama T, Zoysa AD, Gu Q, Takaki T, Ishii I. Vision-Based Real-Time Microflow-Rate Control System for Cell Analysis. JOURNAL OF ROBOTICS AND MECHATRONICS 2016. [DOI: 10.20965/jrm.2016.p0854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
[abstFig src='/00280006/09.jpg' width='300' text='Snapshots of particle sorting experiment using our system' ] On-chip cell analysis is an important issue for microtechnology research, and microfluidic devices are frequently used in on-chip cell analysis systems. One approach to controlling the fluid flow in microfluidic devices for cell analysis is to use a suitable pumps. However, it is difficult to control the actual flow-rate in a microfluidic device because of the difficulty in placing flow-rate sensors in the device. In this study, we developed a real-time flow-rate control system that uses syringe pumps and high-speed vision to measure the actual fluid flow in microfluidic devices. The developed flow-rate control system was verified through experiments on microparticle velocity control and microparticle sorting.
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Tay A, Pavesi A, Yazdi SR, Lim CT, Warkiani ME. Advances in microfluidics in combating infectious diseases. Biotechnol Adv 2016; 34:404-421. [PMID: 26854743 PMCID: PMC7125941 DOI: 10.1016/j.biotechadv.2016.02.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 12/11/2022]
Abstract
One of the important pursuits in science and engineering research today is to develop low-cost and user-friendly technologies to improve the health of people. Over the past decade, research efforts in microfluidics have been made to develop methods that can facilitate low-cost diagnosis of infectious diseases, especially in resource-poor settings. Here, we provide an overview of the recent advances in microfluidic devices for point-of-care (POC) diagnostics for infectious diseases and emphasis is placed on malaria, sepsis and AIDS/HIV. Other infectious diseases such as SARS, tuberculosis, and dengue are also briefly discussed. These infectious diseases are chosen as they contribute the most to disability-adjusted life-years (DALYs) lost according to the World Health Organization (WHO). The current state of research in this area is evaluated and projection toward future applications and accompanying challenges are also discussed.
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Affiliation(s)
- Andy Tay
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore 138602, Singapore; Department of Biomedical Engineering, National University of Singapore, Singapore 117575, Singapore; Department of Bioengineering, University of California Los Angeles, CA 90025, United States
| | - Andrea Pavesi
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore 138602, Singapore
| | - Saeed Rismani Yazdi
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore 138602, Singapore; Polytechnic University of Milan, Milan 20133, Italy
| | - Chwee Teck Lim
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore 138602, Singapore; Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore; Department of Biomedical Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Majid Ebrahimi Warkiani
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore 138602, Singapore; School of Mechanical and Manufacturing Engineering, Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2052, Australia.
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Sha C, Fan Y, Cheng J, Cheng H. Quantitative determination of dopamine in single rat pheochromocytoma cells by microchip electrophoresis with only one high-voltage power supply. J Sep Sci 2015; 38:2357-62. [DOI: 10.1002/jssc.201500009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/04/2015] [Accepted: 04/09/2015] [Indexed: 01/18/2023]
Affiliation(s)
- Cuicui Sha
- Department of Pharmacy; South-Central University for Nationalities; Wuhan China
| | - Yuejuan Fan
- Department of Pharmacy; South-Central University for Nationalities; Wuhan China
| | - Jieke Cheng
- Department of Chemistry and Molecular Sciences; Wuhan University; Wuhan China
| | - Han Cheng
- Department of Pharmacy; South-Central University for Nationalities; Wuhan China
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Sun D, Lu J, Chen Z. Microfluidic contactless conductivity cytometer for electrical cell sensing and counting. RSC Adv 2015. [DOI: 10.1039/c5ra08371k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An integrated and cost-effective microfluidic contactless conductivity cytometer for cell sensing and counting.
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Affiliation(s)
- Duanping Sun
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
| | - Jing Lu
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
| | - Zuanguang Chen
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
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