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Oshin EA, Minhas Z, Biancatelli RMLC, Catravas JD, Heller R, Guo S, Jiang C. Synergistic effects of nanosecond pulsed plasma and electric field on inactivation of pancreatic cancer cells in vitro. Sci Rep 2024; 14:885. [PMID: 38195698 PMCID: PMC10776738 DOI: 10.1038/s41598-024-51298-y] [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: 07/05/2023] [Accepted: 01/03/2024] [Indexed: 01/11/2024] Open
Abstract
Nanosecond pulsed atmospheric pressure plasma jets (ns-APPJs) produce reactive plasma species, including charged particles and reactive oxygen and nitrogen species (RONS), which can induce oxidative stress in biological cells. Nanosecond pulsed electric field (nsPEF) has also been found to cause permeabilization of cell membranes and induce apoptosis or cell death. Combining the treatment of ns-APPJ and nsPEF may enhance the effectiveness of cancer cell inactivation with only moderate doses of both treatments. Employing ns-APPJ powered by 9 kV, 200 ns pulses at 2 kHz and 60-nsPEF of 50 kV/cm at 1 Hz, the synergistic effects on pancreatic cancer cells (Pan02) in vitro were evaluated on the metabolic activities of cells and transcellular electrical resistance (TER). It was observed that treatment with ns-APPJ for > 2 min disrupts Pan02 cell stability and resulted in over 30% cell death. Similarly, applying nsPEF alone, > 20 pulses resulted in over 15% cell death. While the inactivation activity from the individual treatment is moderate, combined treatments resulted in 80% cell death, approximately 3-to-fivefold increase compared to the individual treatment. In addition, reactive oxygen species such as OH and O were identified at the plasma-liquid interface. The gas temperature of the plasma and the temperature of the cell solution during treatments were determined to be near room temperature.
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Affiliation(s)
- Edwin A Oshin
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, 23455, USA
- Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, USA
| | - Zobia Minhas
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, 23455, USA
| | | | - John D Catravas
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, 23455, USA
- School of Medical Diagnostic and Translational Sciences, College of Health Sciences, Old Dominion University, Norfolk, VA, USA
| | - Richard Heller
- Department of Medical Engineering, University of South Florida, Tampa, FL, 33612, USA
| | - Siqi Guo
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, 23455, USA
| | - Chunqi Jiang
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, 23455, USA.
- Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, USA.
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Oshin EA, Minhas Z, Biancatelli RMLC, Catravas JD, Heller R, Guo S, Jiang C. Synergistic effects of nanosecond pulsed plasma and electric field on inactivation of pancreatic cancer cells in vitro. RESEARCH SQUARE 2023:rs.3.rs-3143506. [PMID: 37546947 PMCID: PMC10402252 DOI: 10.21203/rs.3.rs-3143506/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Nanosecond pulsed atmospheric pressure plasma jets (ns-APPJs) produce reactive plasma species, including charged particles and reactive oxygen and nitrogen species (RONS), which can induce oxidative stress in biological cells. Nanosecond pulsed electric field (nsPEF) has also been found to cause permeabilization of cell membranes and induce apoptosis or cell death. Combining the treatment of ns-APPJ and nsPEF may enhance the effectiveness of cancer cell inactivation with only moderate doses of both treatments. Employing ns-APPJ powered by 9 kV, 200 ns pulses at 2 kHz and 60-nsPEF of 50 kV/cm at 1 Hz, the synergistic effects on pancreatic cancer cells (Pan02) in vitro were evaluated on cell viability and transcellular electrical resistance (TER). It was observed that treatment with ns-APPJ for >2 min disrupts Pan02 cell stability and resulted in over 30% cell death. Similarly, applying nsPEF alone, >20 pulses resulted in over 15% cell death. While the inactivation activity from the individual treatment is moderate, combined treatments resulted in 80% cell death, approximately 3-to-5-fold increase compared to the individual treatment. In addition, reactive oxygen species such as OH and O were identified at the plasma-liquid interface. The gas temperature of the plasma and the temperature of the cell solution during treatments were determined to be near room temperature.
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Affiliation(s)
- Edwin A Oshin
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA 23455 USA
- Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, USA
| | - Zobia Minhas
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA 23455 USA
| | | | - John D Catravas
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA 23455 USA
- School of Medical Diagnostic and Translational Sciences, College of Health Sciences, Old Dominion University, Norfolk, VA, USA
| | - Richard Heller
- Department of Medical Engineering, University of South Florida, FL-33612 Tampa, USA
| | - Siqi Guo
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA 23455 USA
| | - Chunqi Jiang
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA 23455 USA
- Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, USA
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Erdem A, Yildiz E, Senturk H, Maral M. Implementation of 3D printing technologies to electrochemical and optical biosensors developed for biomedical and pharmaceutical analysis. J Pharm Biomed Anal 2023; 230:115385. [PMID: 37054602 DOI: 10.1016/j.jpba.2023.115385] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 04/05/2023]
Abstract
Three-dimensional (3D) printing technology has been applied in many areas. In recent years, new generation biosensorshave been emerged with the progress on 3D printing technology (3DPT) . Especially in the development of optical and electrochemical biosensors, 3DPT provides many advantages such as low cost, easy to manufacturing, being disposable and allow point of care testing. In this review, recent trends in the development of 3DPT based electrochemical and optical biosensors with their applications in the field of biomedical and pharmaceutical are examined. In addition, the advantages, disadvantages and future opportunities of 3DPT are discussed.
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Wlodkowic D, Karpiński TM. Live-Cell Systems in Real-Time Biomonitoring of Water Pollution: Practical Considerations and Future Perspectives. SENSORS 2021; 21:s21217028. [PMID: 34770335 PMCID: PMC8588540 DOI: 10.3390/s21217028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/14/2022]
Abstract
Continuous monitoring and early warning of potential water contamination with toxic chemicals is of paramount importance for human health and sustainable food production. During the last few decades there have been noteworthy advances in technologies for the automated sensing of physicochemical parameters of water. These do not translate well into online monitoring of chemical pollutants since most of them are either incapable of real-time detection or unable to detect impacts on biological organisms. As a result, biological early warning systems have been proposed to supplement conventional water quality test strategies. Such systems can continuously evaluate physiological parameters of suitable aquatic species and alert the user to the presence of toxicants. In this regard, single cellular organisms, such as bacteria, cyanobacteria, micro-algae and vertebrate cell lines, offer promising avenues for development of water biosensors. Historically, only a handful of systems utilising single-cell organisms have been deployed as established online water biomonitoring tools. Recent advances in recombinant microorganisms, cell immobilisation techniques, live-cell microarrays and microfluidic Lab-on-a-Chip technologies open new avenues to develop miniaturised systems capable of detecting a broad range of water contaminants. In experimental settings, they have been shown as sensitive and rapid biosensors with capabilities to detect traces of contaminants. In this work, we critically review the recent advances and practical prospects of biological early warning systems based on live-cell biosensors. We demonstrate historical deployment successes, technological innovations, as well as current challenges for the broader deployment of live-cell biosensors in the monitoring of water quality.
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Affiliation(s)
- Donald Wlodkowic
- The Neurotox Laboratory, School of Science, RMIT University, Plenty Road, P.O. Box 71, Bundoora, VIC 3083, Australia
- Correspondence: ; Tel.: +61-3-9925-7157; Fax: +61-3-9925-7110
| | - Tomasz M. Karpiński
- Chair and Department of Medical Microbiology, Poznań University of Medical Sciences, Wieniawskiego 3, 61-712 Poznań, Poland;
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Clarke GA, Hartse BX, Niaraki Asli AE, Taghavimehr M, Hashemi N, Abbasi Shirsavar M, Montazami R, Alimoradi N, Nasirian V, Ouedraogo LJ, Hashemi NN. Advancement of Sensor Integrated Organ-on-Chip Devices. SENSORS (BASEL, SWITZERLAND) 2021; 21:1367. [PMID: 33671996 PMCID: PMC7922590 DOI: 10.3390/s21041367] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 02/10/2021] [Accepted: 02/11/2021] [Indexed: 02/06/2023]
Abstract
Organ-on-chip devices have provided the pharmaceutical and tissue engineering worlds much hope since they arrived and began to grow in sophistication. However, limitations for their applicability were soon realized as they lacked real-time monitoring and sensing capabilities. The users of these devices relied solely on endpoint analysis for the results of their tests, which created a chasm in the understanding of life between the lab the natural world. However, this gap is being bridged with sensors that are integrated into organ-on-chip devices. This review goes in-depth on different sensing methods, giving examples for various research on mechanical, electrical resistance, and bead-based sensors, and the prospects of each. Furthermore, the review covers works conducted that use specific sensors for oxygen, and various metabolites to characterize cellular behavior and response in real-time. Together, the outline of these works gives a thorough analysis of the design methodology and sophistication of the current sensor integrated organ-on-chips.
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Affiliation(s)
- Gabriel A. Clarke
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Brenna X. Hartse
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Amir Ehsan Niaraki Asli
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Mehrnoosh Taghavimehr
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Niloofar Hashemi
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran 11365, Iran;
| | - Mehran Abbasi Shirsavar
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Reza Montazami
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Nima Alimoradi
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Vahid Nasirian
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Lionel J. Ouedraogo
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
| | - Nicole N. Hashemi
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA; (G.A.C.); (B.X.H.); (A.E.N.A.); (M.T.); (M.A.S.); (R.M.); (N.A.); (V.N.); (L.J.O.)
- Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, USA
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MEMS biosensor for monitoring water toxicity based on quartz crystal microbalance. Biointerphases 2020; 15:021006. [PMID: 32216379 DOI: 10.1116/1.5142722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This paper presents the use of a commercial quartz crystal microbalance (QCM) to investigate live-cell activity in water-based toxic solutions. The QCM used in this research has a resonant frequency of 10 MHz and consists of an AT-cut quartz crystal with gold electrodes on both sides. This QCM was transformed into a functional biosensor by integrating with polydimethylsiloxane culturing chambers. Rainbow trout gill epithelial cells were cultured on the resonators as a sensorial layer. The fluctuation of the resonant frequency, due to the change of cell morphology and adhesion, is an indicator of water toxicity. The shift in the resonant frequency provides information about the viability of the cells after exposure to toxicants. The toxicity result shows distinct responses after exposing cells to 0.526 μM of pentachlorophenol (PCP) solution, which is the Military Exposure Guidelines concentration. This research demonstrated that the QCM is sensitive to a low concentration of PCP and no further modification of the QCM surface was required.
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Xia S, Zhu P, Pi F, Zhang Y, Li Y, Wang J, Sun X. Development of a simple and convenient cell-based electrochemical biosensor for evaluating the individual and combined toxicity of DON, ZEN, and AFB 1. Biosens Bioelectron 2017. [DOI: 10.1016/j.bios.2017.06.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Pennington MR, Curtis TM, Divers TJ, Wagner B, Ness SL, Tennant BC, Van de Walle GR. Equine Mesenchymal Stromal Cells from Different Sources Efficiently Differentiate into Hepatocyte-Like Cells. Tissue Eng Part C Methods 2016; 22:596-607. [PMID: 27113698 DOI: 10.1089/ten.tec.2015.0403] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Adult equine hepatocytes have proven challenging to culture long term in vitro as they rapidly lose their morphology and functionality, thus limiting studies on liver function and response to disease. In this study, we describe for the first time the differentiation of equine mesenchymal stromal cells (MSC) from a variety of sources into functional hepatocyte-like cells (HLC). First, we differentiated equine umbilical cord blood (UCB)-derived MSC into HLC and found that these cells exhibited a distinct polygonal morphology, stored glycogen as visualized by periodic acid Schiff's reagent staining, and were positive for albumin and other hepatocyte-specific genes. Second, we demonstrated that UCB-HLC could be revived following cryopreservation and retained their phenotype for at least 10 days. Third, we differentiated three sets of MSC from bone marrow (BM), adipose tissue (AT), and peripheral blood (PB), matched within the same horse. We achieved a 100% differentiation success rate with BM, 0% with AT, and 66% with PB. An additional set of nine PB-MSC samples resulted in an overall success rate of 42% (n = 12), and age or gender did not seem to have an effect on the success of hepatic differentiation from that source. In a final set of experiments, we evaluated the use of these HLC as tools in different fields of biomedical research like virology, to study viral growth, and toxicology, to study chemicals with hepatic toxicity. Equine HLC were found susceptible for infection with the equine herpesviruses type 1 (EHV-1), -2, and -5, and exhibited a more sensitive dose-dependent response to arsenic toxicity than the commonly used human hepatocellular cell line HepG2. Taken together, these data indicate that equine MSC can be efficiently differentiated into HLC and these equine HLC could be a useful tool for in vitro studies.
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Affiliation(s)
- Matthew R Pennington
- 1 Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - Theresa M Curtis
- 1 Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University , Ithaca, New York.,2 Department of Biological Sciences, State University of New York at Cortland , Cortland, New York
| | - Thomas J Divers
- 3 Department of Clinical Sciences, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - Bettina Wagner
- 4 Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - SallyAnne L Ness
- 1 Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University , Ithaca, New York.,3 Department of Clinical Sciences, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - Bud C Tennant
- 3 Department of Clinical Sciences, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - Gerlinde R Van de Walle
- 1 Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University , Ithaca, New York
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A quantitative cell modeling and wound-healing analysis based on the Electric Cell-substrate Impedance Sensing (ECIS) method. Comput Biol Med 2016; 69:134-43. [PMID: 26773459 DOI: 10.1016/j.compbiomed.2015.12.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/25/2015] [Accepted: 12/26/2015] [Indexed: 01/01/2023]
Abstract
In this paper, a quantitative modeling and wound-healing analysis of fibroblast and human keratinocyte cells is presented. Our study was conducted using a continuous cellular impedance monitoring technique, dubbed Electric Cell-substrate Impedance Sensing (ECIS). In fact, we have constructed a mathematical model for quantitatively analyzing the cultured cell growth using the time series data directly derived by ECIS in a previous work. In this study, the applicability of our model into the keratinocyte cell growth modeling analysis was assessed first. In addition, an electrical "wound-healing" assay was used as a means to evaluate the healing process of keratinocyte cells at a variety of pressures. Two innovative and new-defined indicators, dubbed cell power and cell electroactivity, respectively, were developed for quantitatively characterizing the biophysical behavior of cells. We then employed the wavelet transform method to perform a multi-scale analysis so the cell power and cell electroactivity across multiple observational time scales may be captured. Numerical results indicated that our model can well fit the data measured from the keratinocyte cell culture for cell growth modeling analysis. Also, the results produced by our quantitative analysis showed that the wound healing process was the fastest at the negative pressure of 125mmHg, which consistently agreed with the qualitative analysis results reported in previous works.
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10
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Zhang X, Li F, Nordin AN, Tarbell J, Voiculescu I. Toxicity studies using mammalian cells and impedance spectroscopy method. SENSING AND BIO-SENSING RESEARCH 2015. [DOI: 10.1016/j.sbsr.2015.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Ramasamy S, Bennet D, Kim S. Drug and bioactive molecule screening based on a bioelectrical impedance cell culture platform. Int J Nanomedicine 2014; 9:5789-809. [PMID: 25525360 PMCID: PMC4266242 DOI: 10.2147/ijn.s71128] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
This review will present a brief discussion on the recent advancements of bioelectrical impedance cell-based biosensors, especially the electric cell-substrate impedance sensing (ECIS) system for screening of various bioactive molecules. The different technical integrations of various chip types, working principles, measurement systems, and applications for drug targeting of molecules in cells are highlighted in this paper. Screening of bioactive molecules based on electric cell-substrate impedance sensing is a trial-and-error process toward the development of therapeutically active agents for drug discovery and therapeutics. In general, bioactive molecule screening can be used to identify active molecular targets for various diseases and toxicity at the cellular level with nanoscale resolution. In the innovation and screening of new drugs or bioactive molecules, the activeness, the efficacy of the compound, and safety in biological systems are the main concerns on which determination of drug candidates is based. Further, drug discovery and screening of compounds are often performed in cell-based test systems in order to reduce costs and save time. Moreover, this system can provide more relevant results in in vivo studies, as well as high-throughput drug screening for various diseases during the early stages of drug discovery. Recently, MEMS technologies and integration with image detection techniques have been employed successfully. These new technologies and their possible ongoing transformations are addressed. Select reports are outlined, and not all the work that has been performed in the field of drug screening and development is covered.
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Affiliation(s)
- Sakthivel Ramasamy
- Department of Bionanotechnology, Gachon University, Gyeonggi-Do, Republic of Korea
| | - Devasier Bennet
- Department of Bionanotechnology, Gachon University, Gyeonggi-Do, Republic of Korea
| | - Sanghyo Kim
- Department of Bionanotechnology, Gachon University, Gyeonggi-Do, Republic of Korea ; Graduate Gachon Medical Research Institute, Gil Medical Center, Incheon, Republic of Korea
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Rakers S, Imse F, Gebert M. Real-time cell analysis: sensitivity of different vertebrate cell cultures to copper sulfate measured by xCELLigence(®). ECOTOXICOLOGY (LONDON, ENGLAND) 2014; 23:1582-1591. [PMID: 25001081 DOI: 10.1007/s10646-014-1279-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/17/2014] [Indexed: 06/03/2023]
Abstract
In this study, we report the use of a real-time cell analysis (RTCA) test system, the xCELLigence(®) RTCA, as efficient tool for a fast cytotoxicity analysis and comparison of four different vertebrate cell cultures. This new dynamic real-time monitoring and impedance-based assay allows for a combined measurement of cell adhesion, spreading and proliferation. Cell cultures were obtained from mouse, rat, human and fish, all displaying a fibroblast-like phenotype. The measured impedance values could be correlated to characteristic cell culture behaviours. In parallel, relative cytotoxicity of a commonly used but due to its very good water solubility highly hazardous pesticide, copper sulfate, was evaluated under in vitro conditions through measurements of cell viability by classical end-point based assays MTT and PrestoBlue(®). Cell line responses in terms of viability as measured by these three methods were variable between the fish skin cells and cells from higher vertebrates and also between the three methods. The advantage of impedance-based measurements is mainly based on the continuous monitoring of cell responses for a broad range of different cells, including fish cells.
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Affiliation(s)
- S Rakers
- LG Aquatic Cell Technology, Fraunhofer Research Institution for Marine Biotechnology, Paul-Ehrlich-Str. 1-3, 23562, Lübeck, Germany,
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Widder MW, Brennan LM, Hanft EA, Schrock ME, James RR, van der Schalie WH. Evaluation and refinement of a field-portable drinking water toxicity sensor utilizing electric cell-substrate impedance sensing and a fluidic biochip. J Appl Toxicol 2014; 35:701-8. [DOI: 10.1002/jat.3017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 03/19/2014] [Accepted: 03/19/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Mark W. Widder
- US Army Center for Environmental Health Research; 568 Doughten Drive Fort Detrick MD 21702-5010 USA
| | - Linda M. Brennan
- US Army Center for Environmental Health Research; 568 Doughten Drive Fort Detrick MD 21702-5010 USA
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14
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Experimental tools to monitor the dynamics of endothelial barrier function: a survey of in vitro approaches. Cell Tissue Res 2014; 355:485-514. [DOI: 10.1007/s00441-014-1810-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/13/2014] [Indexed: 02/05/2023]
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15
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Gu W, Zhao Y. Cellular electrical impedance spectroscopy: an emerging technology of microscale biosensors. Expert Rev Med Devices 2014; 7:767-79. [DOI: 10.1586/erd.10.47] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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A microfluidic device for continuous sensing of systemic acute toxicants in drinking water. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2013; 10:6748-63. [PMID: 24300075 PMCID: PMC3881139 DOI: 10.3390/ijerph10126748] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 11/18/2013] [Accepted: 11/27/2013] [Indexed: 12/20/2022]
Abstract
A bioluminescent-cell-based microfluidic device for sensing toxicants in drinking water was designed and fabricated. The system employed Vibrio fischeri cells as broad-spectrum sensors to monitor potential systemic cell toxicants in water, such as heavy metal ions and phenol. Specifically, the chip was designed for continuous detection. The chip design included two counter-flow micromixers, a T-junction droplet generator and six spiral microchannels. The cell suspension and water sample were introduced into the micromixers and dispersed into droplets in the air flow. This guaranteed sufficient oxygen supply for the cell sensors. Copper (Cu2+), zinc (Zn2+), potassium dichromate and 3,5-dichlorophenol were selected as typical toxicants to validate the sensing system. Preliminary tests verified that the system was an effective screening tool for acute toxicants although it could not recognize or quantify specific toxicants. A distinct non-linear relationship was observed between the zinc ion concentration and the Relative Luminescence Units (RLU) obtained during testing. Thus, the concentration of simple toxic chemicals in water can be roughly estimated by this system. The proposed device shows great promise for an early warning system for water safety.
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Suitability of invertebrate and vertebrate cells in a portable impedance-based toxicity sensor: Temperature mediated impacts on long-term survival. Toxicol In Vitro 2013; 27:2061-6. [DOI: 10.1016/j.tiv.2013.07.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 06/25/2013] [Accepted: 07/15/2013] [Indexed: 11/16/2022]
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18
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Liu F, Li F, Nordin AN, Voiculescu I. A novel cell-based hybrid acoustic wave biosensor with impedimetric sensing capabilities. SENSORS 2013; 13:3039-55. [PMID: 23459387 PMCID: PMC3658730 DOI: 10.3390/s130303039] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 01/28/2013] [Accepted: 02/20/2013] [Indexed: 11/16/2022]
Abstract
A novel multiparametric biosensor system based on living cells will be presented. The biosensor system includes two biosensing techniques on a single device: resonant frequency measurements and electric cell-substrate impedance sensing (ECIS). The multiparametric sensor system is based on the innovative use of the upper electrode of a quartz crystal microbalance (QCM) resonator as working electrode for the ECIS technique. The QCM acoustic wave sensor consists of a thin AT-cut quartz substrate with two gold electrodes on opposite sides. For integration of the QCM with the ECIS technique a semicircular counter electrode was fabricated near the upper electrode on the same side of the quartz crystal. Bovine aortic endothelial live cells (BAECs) were successfully cultured on this hybrid biosensor. Finite element modeling of the bulk acoustic wave resonator using COMSOL simulations was performed. Simultaneous gravimetric and impedimetric measurements performed over a period of time on the same cell culture were conducted to validate the device's sensitivity. The time necessary for the BAEC cells to attach and form a compact monolayer on the biosensor was 35~45 minutes for 1.5 × 10(4) cells/cm2 BAECs; 60 minutes for 2.0 × 10(4) cells/cm2 BAECs; 70 minutes for 3.0 × 10(4) cells/cm2 BAECs; and 100 minutes for 5.0 × 104 cells/cm2 BAECs. It was demonstrated that this time is the same for both gravimetric and impedimetric measurements. This hybrid biosensor will be employed in the future for water toxicity detection.
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Affiliation(s)
- Fei Liu
- Mechanical Engineering Department, City College of New York, New York, NY 10031, USA; E-Mail:
| | - Fang Li
- Mechanical Engineering Department, New York Institute of Technology, Old Westbury, NY 11568, USA; E-Mail:
| | - Anis Nurashikin Nordin
- Electrical and Computer Engineering, International Islamic University Malaysia, Jalan Gombak, Kuala Lumpur 53100, Malaysia; E-Mail:
| | - Ioana Voiculescu
- Mechanical Engineering Department, City College of New York, New York, NY 10031, USA; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-212-650-5210; Fax: +1-212-650-8013
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Long-term storage and impedance-based water toxicity testing capabilities of fluidic biochips seeded with RTgill-W1 cells. Toxicol In Vitro 2012; 26:736-45. [DOI: 10.1016/j.tiv.2012.03.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 03/07/2012] [Accepted: 03/16/2012] [Indexed: 12/19/2022]
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Cell-based sensor system using L6 cells for broad band continuous pollutant monitoring in aquatic environments. SENSORS 2012; 12:3370-93. [PMID: 22737014 PMCID: PMC3376625 DOI: 10.3390/s120303370] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 02/28/2012] [Accepted: 03/05/2012] [Indexed: 12/28/2022]
Abstract
Pollution of drinking water sources represents a continuously emerging problem in global environmental protection. Novel techniques for real-time monitoring of water quality, capable of the detection of unanticipated toxic and bioactive substances, are urgently needed. In this study, the applicability of a cell-based sensor system using selected eukaryotic cell lines for the detection of aquatic pollutants is shown. Readout parameters of the cells were the acidification (metabolism), oxygen consumption (respiration) and impedance (morphology) of the cells. A variety of potential cytotoxic classes of substances (heavy metals, pharmaceuticals, neurotoxins, waste water) was tested with monolayers of L6 cells (rat myoblasts). The cytotoxicity or cellular effects induced by inorganic ions (Ni2+ and Cu2+) can be detected with the metabolic parameters acidification and respiration down to 0.5 mg/L, whereas the detection limit for other substances like nicotine and acetaminophen are rather high, in the range of 0.1 mg/L and 100 mg/L. In a close to application model a real waste water sample shows detectable signals, indicating the existence of cytotoxic substances. The results support the paradigm change from single substance detection to the monitoring of overall toxicity.
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Lin CY, Teng NC, Hsieh SC, Lin YS, Chang WJ, Hsiao SY, Huang HS, Huang HM. Real-time detection of β1 integrin expression on MG-63 cells using electrochemical impedance spectroscopy. Biosens Bioelectron 2011; 28:221-6. [PMID: 21816605 DOI: 10.1016/j.bios.2011.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 07/11/2011] [Accepted: 07/11/2011] [Indexed: 12/01/2022]
Abstract
Beta 1 integrin is a membrane protein responsible for attachment and migration of osteosarcoma cells. In this study, expression of β1 integrin on MG-63 cells, a human osteogenic sarcoma cell line, was monitored using electrochemical impedance spectroscopy (EIS). ITO-based biochips were developed using a semiconductor technique. Differences in electric resistance (ΔR) were measured continuously when cells binding with anti-β1 integrin antibody coagulated with nano-scale gold particles. The results of the EIS system were compared with traditional immunofluorescence staining. We found that sample chambers with higher cell densities had larger ΔR values. When the cell densities increased from 5 × 10(4) cells/ml to 5 × 10(5) cells/ml, the ΔR value dose-dependently increased from 14 Ω to 37 Ω. In addition, a highly linear relationship (correlation coefficient, 0.921) was found between the ΔR values and the corresponding fluorescence intensities (p<0.05). These results suggest that electrochemical impedance spectroscopy can be a useful tool for evaluating β1 integrin expression on cell membranes.
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Affiliation(s)
- Chun-Yen Lin
- School of Dentistry, College of Oral Medicine, Taipei Medical University, 250, Wu-Hsing Street, Taipei, Taiwan
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Hong J, Kandasamy K, Marimuthu M, Choi CS, Kim S. Electrical cell-substrate impedance sensing as a non-invasive tool for cancer cell study. Analyst 2010; 136:237-45. [PMID: 20963234 DOI: 10.1039/c0an00560f] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cell-substrate interactions are investigated in a number of studies for drug targets including angiogenesis, arteriosclerosis, chronic inflammatory diseases and carcinogenesis. One characteristic of malignant cancerous cells is their ability to invade tissue. Cell adhesion and cytoskeletal activity have served as valuable indicators for understanding the cancer cell behaviours, such as proliferation, migration and invasion. This review focuses on bio-impedance based measurement for monitoring the behaviours in real time and without using labels. Electric cell-substrate impedance sensing (ECIS) provides rich information about cell-substrate interactions, cell-cell communication and cell adhesion. High sensitivity of the ECIS method allows for observing events down to single-cell level and achieving nanoscale resolution of cell-substrate distances. Recently, its miniaturization and integration with fluorescent detection techniques have been highlighted as a new tool to deliver a high-content platform for anticancer drug development.
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Affiliation(s)
- Jongin Hong
- Department of Chemistry and Institute of Biomedical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ United Kingdom.
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Hsu CC, Tsai WC, Chen CPC, Lu YM, Wang JS. Effects of negative pressures on epithelial tight junctions and migration in wound healing. Am J Physiol Cell Physiol 2010; 299:C528-34. [DOI: 10.1152/ajpcell.00504.2009] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Negative-pressure wound therapy has recently gained popularity in chronic wound care. This study attempted to explore effects of different negative pressures on epithelial migration in the wound-healing process. The electric cell-substrate impedance sensing (ECIS) technique was used to create a 5 × 10−4 cm2 wound in the Madin-Darby canine kidney (MDCK) and human keratinocyte (HaCaT) cells. The wounded cells were cultured in a negative pressure incubator at ambient pressure (AP) and negative pressures of 75 mmHg (NP75), 125 mmHg (NP125), and 175 mmHg (NP175). The effective time (ET), complete wound healing time ( Tmax), healing rate ( Rheal), cell diameter, and wound area over time at different pressures were evaluated. Traditional wound-healing assays were prepared for fluorescent staining of cells viability, cell junction proteins, including ZO-1 and E-cadherin, and actins. Amount of cell junction proteins at AP and NP125 was also quantified. In MDCK cells, the ET (1.25 ± 0.27 h), Tmax (1.76 ± 0.32 h), and Rheal (2.94 ± 0.62 × 10−4 cm2/h) at NP125 were significantly ( P < 0.01) different from those at three other pressure conditions. In HaCaT cells, the Tmax (7.34 ± 0.29 h) and Rheal (6.82 ± 0.26 × 10−5 cm2/h) at NP125 were significantly ( P < 0.01) different from those at NP75. Prominent cell migration features were identified in cells at the specific negative pressure. Cell migration activities at different pressures can be documented with the real-time wound-healing measurement system. Negative pressure of 125 mmHg can help disassemble the cell junction to enhance epithelial migration and subsequently result in quick wound closure.
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Affiliation(s)
- Chih-Chin Hsu
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Keelung, Keelung
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan
- Graduate Institute of Rehabilitation Science, College of Medicine, Chang Gung University, Taoyuan, and
| | - Wen-Chung Tsai
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan
- Graduate Institute of Rehabilitation Science, College of Medicine, Chang Gung University, Taoyuan, and
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Carl Pai-Chu Chen
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Yun-Mei Lu
- Graduate Institute of Rehabilitation Science, College of Medicine, Chang Gung University, Taoyuan, and
| | - Jong-Shyan Wang
- Graduate Institute of Rehabilitation Science, College of Medicine, Chang Gung University, Taoyuan, and
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