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Devkota A, Pandey A, Yadegari Z, Dumenyo K, Taheri A. Glucosamine/β-Alanine Carbon Dots Use as DNA Carriers Into E. coli Cells. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.777810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introducing foreign DNA into bacterial cells is essential in functional genomics and molecular research. Currently, heat shock and electroporation are the two major techniques of gene delivery in bacterial cells. However, both the techniques are time and resource consuming and are limited to a few species or strains of bacteria and there is a need to develop new transformation alternatives. Carbon dots with unique features such as facile synthesis, ease of functionalization, nontoxicity, and biocompatibility are considered novel biomolecule nanocarriers. In this study, we synthesized and evaluated DNA delivery potential of four carbon dots including: 1) amine-coated carbon dots (NH2-FCDs); 2) carboxylate carbon dots (COOH-FCDs); 3) L-arginine and glucose carbon dots (N-CDs), and 4) citric acid and polyethyleneimine (PEI) carbon dots into Escherichia. coli cells. We evaluated the minimum incubation time required for the plasmid DNA delivery and the maximum plasmid size that can be delivered into E. coli cells using these CDs. Bacteria were incubated with carbon dots solution for different lengths of time and plated on selection media. Transformed colonies were counted and data were analyzed to identify the optimum incubation time and measure DNA delivery of these CDs with plasmids of different sizes. Our study demonstrated that among all these CDs, only carboxylate carbon dots (COOH-FCDs) prepared from glucosamine and β-alanine were able to deliver plasmid DNA into E. coli cells and the best incubation time was between 30 and 60 min. The maximum plasmid size that could be delivered using these CDs was approximately 10 kb and transformation efficiency decreased with larger plasmids. This study shows the capacity of COOH-CDs to deliver plasmid DNA into bacteria with an immense potential to combine with modern genome-editing tools. However, further studies are needed to evaluate their potential in DNA delivery in other bacterial strains.
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2
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Zohri M, Arefian E, Akbari Javar H, Gazori T, Aghaee-Bakhtiari SH, Taheri M, Fatahi Y, Azadi A, Khoshayand MR, Ghahremani MH. Potential of chitosan/alginate nanoparticles as a non-viral vector for gene delivery: Formulation and optimization using D-optimal design. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112262. [PMID: 34474821 DOI: 10.1016/j.msec.2021.112262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/03/2021] [Accepted: 06/11/2021] [Indexed: 12/24/2022]
Abstract
Chitosan/alginate (Chi/Alg) nanoparticles as a non-viral vector for the Smad4 encoding plasmid were optimized utilizing D-optimal design based on the nanoparticles/plasmid ratio, Chi/Alg MW, and preparation method type. Following the optimization and validation of the best formula, morphology studies and FTIR measurements were performed to evaluate the optimized Chi/Alg/S NPs. Toxicity (MTT assay) and transfection studies were performed for the best formula in comparison with Lipofectamine 2000, and Polyethyleneimine (PEI) and evaluated using Green Fluorescence Protein (GFP) assay, Flow cytometry, and RT-PCR. The model predicted a particle size of 111 nm, loading efficacy (LE) of 43%, cumulative release (CMR) of 39%, the ζ-potential of +50 mV, and PDI of 0.13. The predicted point condition was as follows: NP ratio = 13, Chi/Alg MW ratio = 2.35, and preparation method type = 1. Microscopic findings revealed that the shape of nanoparticles was spherical. The Chi/Alg/S nanoparticles showed no toxicity and transfection efficacy of 29.9% was observed in comparison with Lipofectamine (35.5%) and PEI (30.9%).
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Affiliation(s)
- Maryam Zohri
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Arefian
- Department of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Hamid Akbari Javar
- Departments of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Taraneh Gazori
- Trita Nanomedicine Research Center (TNRC), Trita Third Millennium Pharmaceuticals, 1917733831 Tehran, Iran
| | - Seyed Hamid Aghaee-Bakhtiari
- Bioinformatics Research Group, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojtaba Taheri
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Yousef Fatahi
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Azadi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Khoshayand
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Ghahremani
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran.
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3
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Huang H, Liu Z, Qiu Y, Wang X, Wang H, Xiao H, Lu Z. Efficient electrotransformation of Rhodococcus ruber YYL with abundant extracellular polymeric substances via a cell wall-weakening strategy. FEMS Microbiol Lett 2021; 368:6273628. [PMID: 33974050 DOI: 10.1093/femsle/fnab049] [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: 12/13/2020] [Accepted: 05/08/2021] [Indexed: 11/14/2022] Open
Abstract
Rhodococcus spp. have broad potential applications related to the degradation of organic contaminants and the transformation or synthesis of useful compounds. However, some Gram-positive bacteria are difficult to manipulate genetically due to low transformation efficiency. In this study, we investigated the effects of chemicals including glycine, isonicotinic acid hydrazide (INH), Tween 80 and penicillin G, as well as cell growth status, competent cell concentration, electroporation field strength, electroporation time and heat shock time, on the electrotransformation efficiency of the tetrahydrofuran-degrading bacterium Rhodococcus ruber YYL with low transformation efficiency. The highest electrotransformation efficiency was 1.60 × 106 CFU/µg DNA after parameter optimization. GmhD (D-glycero-D-manno-heptose 1-phosphate guanosyltransferase) gene, which is important in the biosynthesis of lipopolysaccharide, was deleted via the optimized electrotransformation method. Compared with wild-type strain, YYL ΔgmhD showed extremely high electrotransformation efficiency because the surface of it had no mushroom-like extracellular polymeric substances (EPS). In addition, the results showed that cell wall-weakening reagents might cause some translucent substances like EPS, to detach from the cells, increasing the electrotransformation efficiency of strain YYL. We propose that these results could provide a new strategy for unique bacteria that are rich in EPS, for which genetic manipulation systems are difficult to establish.
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Affiliation(s)
- Hui Huang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Zubi Liu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yiyang Qiu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xuejun Wang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Haixia Wang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hailong Xiao
- Hangzhou Institute for Food and Drug Control, Hangzhou, Zhejiang 310018, China
| | - Zhenmei Lu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
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4
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Ren J, Karna S, Lee HM, Yoo SM, Na D. Artificial transformation methodologies for improving the efficiency of plasmid DNA transformation and simplifying its use. Appl Microbiol Biotechnol 2019; 103:9205-9215. [PMID: 31650193 DOI: 10.1007/s00253-019-10173-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/03/2019] [Accepted: 10/08/2019] [Indexed: 01/23/2023]
Abstract
The uptake of exogenous DNA materials through the cell membrane by bacteria, known as transformation, is essential for the genetic manipulation of bacteria and, thus, plays key roles in biotechnological and biological research. The efficiency of natural transformation is very low; therefore, various artificial transformation methods have been developed for simple and efficient bacterial transformation. The basic bacterial transformation method is based on chemical, physical, and electrical processes and other means to permeabilize the bacterial cell membrane to allow plasmid DNA uptake. With the introduction of novel chemicals, materials, and devices and the optimization of protocols, new transformation methods have become simpler, cheaper, and more reproducible for use in diverse bacterial species compared with conventional methods. In this review, artificial transformation methods have been classified according to the membrane-permeabilizing mechanisms employed by them. Their influential factors, transformation efficiency, advantages, disadvantages, and practical applications are briefly illustrated. Finally, physicochemical transformation as a new bacterial transformation technique has also been described.
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Affiliation(s)
- Jun Ren
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Sandeep Karna
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Hyang-Mi Lee
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Seung Min Yoo
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Dokyun Na
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea.
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5
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Thombre RS, Shivakarthik E, Sivaraman B, Vaishampayan PA, Seuylemezian A, Meka JK, Vijayan S, Kulkarni PP, Pataskar T, Patil BS. Survival of Extremotolerant Bacteria from the Mukundpura Meteorite Impact Crater. ASTROBIOLOGY 2019; 19:785-796. [PMID: 31081685 DOI: 10.1089/ast.2018.1928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Carbonaceous meteorites provide clues with regard to prebiotic chemistry and the origin of life. Geological Survey of India recorded a carbonaceous chondrite meteorite fall in Mukundpura, India, on June 6, 2017. We conducted a study to investigate the microbial community that survived the meteorite impact. 16S rRNA metagenomic sequencing indicates the presence of Actinobacteria, Proteobacteria, and Acidobacteria in meteorite impact soil. Comparative phylogenetic analysis revealed an intriguing abundance of class Bacilli in the impact soil. Bacillus thermocopriae IR-1, a moderately thermotolerant organism, was isolated from a rock, impacted by the Mukundpura meteorite. We investigated the resilience of B. thermocopriae IR-1 to environmental stresses and impact shock in a Reddy shock tube. Bacillus thermocopriae IR-1 survived (28.82% survival) the effect of shock waves at a peak shock pressure of 300 kPa, temperature 400 K, and Mach number of 1.47. This investigation presents the first report on the effect of impact shock on B. thermocopriae IR-1. The study is also the first report on studying the microbial diversity and isolation of bacteria from impact crater soil immediately after meteorite impact event.
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Affiliation(s)
- Rebecca S Thombre
- 1 Department of Biotechnology, Modern College of Arts, Science and Commerce, Pune, India
| | - E Shivakarthik
- 2 Atomic, Molecular and Optical Physics Division, Physical Research Laboratory, Ahmedabad, India
| | - Bhalamurugan Sivaraman
- 2 Atomic, Molecular and Optical Physics Division, Physical Research Laboratory, Ahmedabad, India
| | - Parag A Vaishampayan
- 3 Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California
| | - Arman Seuylemezian
- 3 Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California
| | - J K Meka
- 2 Atomic, Molecular and Optical Physics Division, Physical Research Laboratory, Ahmedabad, India
| | - S Vijayan
- 2 Atomic, Molecular and Optical Physics Division, Physical Research Laboratory, Ahmedabad, India
| | - P P Kulkarni
- 1 Department of Biotechnology, Modern College of Arts, Science and Commerce, Pune, India
| | - T Pataskar
- 1 Department of Biotechnology, Modern College of Arts, Science and Commerce, Pune, India
| | - B S Patil
- 1 Department of Biotechnology, Modern College of Arts, Science and Commerce, Pune, India
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6
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Kant R, Bhatt G, Patel VK, Ganguli A, Singh D, Nayak M, Mishra K, Gupta A, Gangopadhyay K, Gangopadhyay S, Ramanathan G, Bhattacharya S. Synchronized Electromechanical Shock Wave-Induced Bacterial Transformation. ACS OMEGA 2019; 4:8512-8521. [PMID: 31459941 PMCID: PMC6648450 DOI: 10.1021/acsomega.9b00202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 05/06/2019] [Indexed: 05/28/2023]
Abstract
We report a simple device that generates synchronized mechanical and electrical pressure waves for carrying out bacterial transformation. The mechanical pressure waves are produced by igniting a confined nanoenergetic composite material that provides ultrahigh pressure. Further, this device has an arrangement through which a synchronized electric field (of a time-varying nature) is initiated at a delay of ≈85 μs at the full width half-maxima point of the pressure pulse. The pressure waves so generated are incident to a thin aluminum-polydimethylsiloxane membrane that partitions the ignition chamber from the column of the mixture containing bacterial cells (Escherichia coli BL21) and 4 kb transforming DNA. A combination of mechanical and electrical pressure pulse created through the above arrangement ensures that the transforming DNA transports across the cell membrane into the cell, leading to a transformation event. This unique device has been successfully operated for efficient gene (∼4 kb) transfer into cells. The transformation efficacy of this device is found comparable to the other standard methods and protocols for carrying out the transformation.
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Affiliation(s)
- Rishi Kant
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Geeta Bhatt
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Vinay Kumar Patel
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Anurup Ganguli
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Deepak Singh
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Monalisha Nayak
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Keerti Mishra
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Ankur Gupta
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Keshab Gangopadhyay
- Department
of Electrical and Computer Engineering, University of Missouri Columbia, Columbia, Missouri 65211, United States
| | - Shubhra Gangopadhyay
- Department
of Electrical and Computer Engineering, University of Missouri Columbia, Columbia, Missouri 65211, United States
| | - Gurunath Ramanathan
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Shantanu Bhattacharya
- Microsystems
Fabrication Laboratory, Department of Mechanical Engineering and Department of
Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, Uttar Pradesh, India
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7
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Li D, Tang Y, Lin J, Cai W. Methods for genetic transformation of filamentous fungi. Microb Cell Fact 2017; 16:168. [PMID: 28974205 PMCID: PMC5627406 DOI: 10.1186/s12934-017-0785-7] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 09/26/2017] [Indexed: 12/20/2022] Open
Abstract
Filamentous fungi have been of great interest because of their excellent ability as cell factories to manufacture useful products for human beings. The development of genetic transformation techniques is a precondition that enables scientists to target and modify genes efficiently and may reveal the function of target genes. The method to deliver foreign nucleic acid into cells is the sticking point for fungal genome modification. Up to date, there are some general methods of genetic transformation for fungi, including protoplast-mediated transformation, Agrobacterium-mediated transformation, electroporation, biolistic method and shock-wave-mediated transformation. This article reviews basic protocols and principles of these transformation methods, as well as their advantages and disadvantages.
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Affiliation(s)
- Dandan Li
- Institute of Apply Genomics, Fuzhou University, No.2 Xueyuan Road, Fuzhou, 350108 China
- College of Biological Science and Engineering, Fuzhou University, No.2 Xueyuan Road, Fuzhou, 350108 China
| | - Yu Tang
- Triplex International Biosciences (China) Co. LTD, Xiamen, 361100 China
| | - Jun Lin
- Institute of Apply Genomics, Fuzhou University, No.2 Xueyuan Road, Fuzhou, 350108 China
- School of Basic Medical Sciences, Fujian Medical University, No.1 Xuefubei Road, Fuzhou, 350122 China
- College of Biological Science and Engineering, Fuzhou University, No.2 Xueyuan Road, Fuzhou, 350108 China
| | - Weiwen Cai
- Institute of Apply Genomics, Fuzhou University, No.2 Xueyuan Road, Fuzhou, 350108 China
- College of Biological Science and Engineering, Fuzhou University, No.2 Xueyuan Road, Fuzhou, 350108 China
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8
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Mechanism of transformation in Mycobacteria using a novel shockwave assisted technique driven by in-situ generated oxyhydrogen. Sci Rep 2017; 7:8645. [PMID: 28819202 PMCID: PMC5561244 DOI: 10.1038/s41598-017-08542-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 07/11/2017] [Indexed: 12/21/2022] Open
Abstract
We present a novel method for shockwave-assisted bacterial transformation using a miniature oxyhydrogen detonation-driven shock tube. We have obtained transformation efficiencies of about 1.28 × 106, 1.7 × 106, 5 × 106, 1 × 105, 1 × 105 and 2 × 105 transformants/µg of DNA for Escherichia coli, Salmonella Typhimurum, Pseudomonas aeruginosa, Mycobacterium smegmatis, Mycobacterium tuberculosis (Mtb) and Helicobacter pylori respectively using this method which are significantly higher than those obtained using conventional methods. Mtb is the most difficult bacteria to be transformed and hence their genetic modification is hampered due to their poor transformation efficiency. Experimental results show that longer steady time duration of the shockwave results in higher transformation efficiencies. Measurements of Young's modulus and rigidity of cell wall give a good understanding of the transformation mechanism and these results have been validated computationally. We describe the development of a novel shockwave device for efficient bacterial transformation in complex bacteria along with experimental evidence for understanding the transformation mechanism.
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10
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Janardhanraj S, Jagadeesh G. Development of a novel miniature detonation-driven shock tube assembly that uses in situ generated oxyhydrogen mixture. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:085114. [PMID: 27587167 DOI: 10.1063/1.4960961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A novel concept to generate miniature shockwaves in a safe, repeatable, and controllable manner in laboratory confinements using an in situ oxyhydrogen generator has been proposed and demonstrated. This method proves to be more advantageous than existing methods because there is flexibility to vary strength of the shockwave, there is no need for storage of high pressure gases, and there is minimal waste disposal. The required amount of oxyhydrogen mixture is generated using alkaline electrolysis that produces hydrogen and oxygen gases in stoichiometric quantity. The rate of oxyhydrogen mixture production for the newly designed oxyhydrogen generator is found to be around 8 ml/s experimentally. The oxyhydrogen generator is connected to the driver section of a specially designed 10 mm square miniature shock tube assembly. A numerical code that uses CANTERA software package is used to predict the properties of the driver gas in the miniature shock tube. This prediction along with the 1-D shock tube theory is used to calculate the properties of the generated shockwave and matches reasonably well with the experimentally obtained values for oxyhydrogen mixture fill pressures less than 2.5 bars. The miniature shock tube employs a modified tri-clover clamp assembly to facilitate quick changing of diaphragm and replaces the more cumbersome nut and bolt system of fastening components. The versatile nature of oxyhydrogen detonation-driven miniature shock tube opens up new horizons for shockwave-assisted interdisciplinary applications.
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Affiliation(s)
- S Janardhanraj
- Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India
| | - G Jagadeesh
- Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India
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11
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Datey A, Adeeb Thaha CS, Patil SR, Gopalan J, Chakravortty D. Enhancing the efficiency of desensitizing agents with shockwave treatment – a new paradigm in dentinal hypersensitivity management. RSC Adv 2016; 6:68973-68978. [DOI: 10.1039/c6ra12342b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023] Open
Abstract
Micro-shockwave assisted dentin hypersensitivity management.
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Affiliation(s)
- Akshay Datey
- Department of Microbiology & Cell Biology
- Indian Institute of Science
- Bangalore
- India
- Department of Aerospace Engineering
| | - C. S. Adeeb Thaha
- Department of Periodontics
- K.L.E. Society's Institute of Dental Sciences
- Bangalore
- India
| | - Sudhir R. Patil
- Department of Periodontics
- K.L.E. Society's Institute of Dental Sciences
- Bangalore
- India
| | - Jagadeesh Gopalan
- Department of Aerospace Engineering
- Indian Institute of Science
- Bangalore
- India
- Centre for Biosystems Science & Engineering
| | - Dipshikha Chakravortty
- Department of Microbiology & Cell Biology
- Indian Institute of Science
- Bangalore
- India
- Centre for Biosystems Science & Engineering
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12
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Gnanadhas DP, Elango M, Janardhanraj S, Srinandan CS, Datey A, Strugnell RA, Gopalan J, Chakravortty D. Successful treatment of biofilm infections using shock waves combined with antibiotic therapy. Sci Rep 2015; 5:17440. [PMID: 26658706 PMCID: PMC4674795 DOI: 10.1038/srep17440] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 10/29/2015] [Indexed: 12/29/2022] Open
Abstract
Many bacteria secrete a highly hydrated framework of extracellular polymer matrix on suitable substrates and embed within the matrix to form a biofilm. Bacterial biofilms are observed on many medical devices, endocarditis, periodontitis and lung infections in cystic fibrosis patients. Bacteria in biofilm are protected from antibiotics and >1,000 times of the minimum inhibitory concentration may be required to treat biofilm infections. Here, we demonstrated that shock waves could be used to remove Salmonella, Pseudomonas and Staphylococcus biofilms in urinary catheters. The studies were extended to a Pseudomonas chronic pneumonia lung infection and Staphylococcus skin suture infection model in mice. The biofilm infections in mice, treated with shock waves became susceptible to antibiotics, unlike untreated biofilms. Mice exposed to shock waves responded to ciprofloxacin treatment, while ciprofloxacin alone was ineffective in treating the infection. These results demonstrate for the first time that, shock waves, combined with antibiotic treatment can be used to treat biofilm infection on medical devices as well as in situ infections.
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Affiliation(s)
- Divya Prakash Gnanadhas
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India.,Department of Aerospace Engineering, Indian Institute of Science, Bangalore, India
| | - Monalisha Elango
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - S Janardhanraj
- Department of Aerospace Engineering, Indian Institute of Science, Bangalore, India
| | - C S Srinandan
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Akshay Datey
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India.,Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India
| | - Richard A Strugnell
- Department of Microbiology and Immunology, The Peter Doherty Centre for Infection and Immunity at The University of Melbourne, Australia
| | - Jagadeesh Gopalan
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India.,Department of Aerospace Engineering, Indian Institute of Science, Bangalore, India
| | - Dipshikha Chakravortty
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India.,Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India
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13
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Gnanadhas DP, Elango M, Thomas MB, Gopalan J, Chakravortty D. Remotely triggered micro-shock wave responsive drug delivery system for resolving diabetic wound infection and controlling blood sugar levels. RSC Adv 2015; 5:13234-13238. [DOI: 10.1039/c4ra15270k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023] Open
Abstract
A novel, micro-shock wave responsive spermidine and dextran sulfate microparticle was developed.
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Affiliation(s)
- Divya Prakash Gnanadhas
- Department of Microbiology and Cell Biology
- Indian Institute of Science
- Bangalore
- India
- Department of Aerospace Engineering
| | - Monalisha Elango
- Department of Microbiology and Cell Biology
- Indian Institute of Science
- Bangalore
- India
| | - Midhun Ben Thomas
- Department of Microbiology and Cell Biology
- Indian Institute of Science
- Bangalore
- India
- Department of Materials Engineering
| | - Jagadeesh Gopalan
- Department of Aerospace Engineering
- Indian Institute of Science
- Bangalore
- India
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14
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Lu S, Nie Y, Tang YQ, Xiong G, Wu XL. A critical combination of operating parameters can significantly increase the electrotransformation efficiency of a gram-positive Dietzia strain. J Microbiol Methods 2014; 103:144-51. [DOI: 10.1016/j.mimet.2014.05.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 05/22/2014] [Accepted: 05/22/2014] [Indexed: 12/21/2022]
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15
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Physical methods for genetic transformation of fungi and yeast. Phys Life Rev 2014; 11:184-203. [DOI: 10.1016/j.plrev.2014.01.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 01/21/2014] [Indexed: 01/27/2023]
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Arellano-Carbajal F. Fungi learn how to surf big waves: Comment on "Physical methods for genetic transformation of fungi and yeast" by Ana Leonor Rivera, Denis Magaña-Ortíz, Miguel Gómez-Lim, Francisco Fernández, Achim M. Loske. Phys Life Rev 2014; 11:210-1. [PMID: 24698658 DOI: 10.1016/j.plrev.2014.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 03/11/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Fausto Arellano-Carbajal
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias S/N, Juriquilla, Querétaro, Qro., México C.P. 76230, Mexico
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Chatterjee S, Sarkar K. Surface-functionalized gold nanoparticles mediate bacterial transformation: a nanobiotechnological approach. Biotechnol Lett 2013; 36:265-71. [PMID: 24101244 DOI: 10.1007/s10529-013-1360-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 09/16/2013] [Indexed: 10/26/2022]
Abstract
Transformation of bacteria is an important step in molecular biology. Viral and non-virus-based gene delivery techniques, including chemical/biological and physical approaches, have been applied to bacterial, mammalian and plant cells. E. coli is not competent to take up DNA; hence, different methods are used to incorporate plasmid DNA. A novel method has been developed using glutathione-functionalized gold nanoparticles to mediate transformation of plasmid DNA (pUC19) into E. coli DH5α that does not require the preparation of competent cells. The glutathione-functionalized gold nanoparticles acted as a vector and facilitated the entry of DNA into the host cell. The method also gave a higher transformation efficiency (4.2 × 10(7)/μg DNA) compared to 2.3 × 10(5)/μg DNA using the conventional CaCl2-mediated method. It was also non-toxic to the bacterium making it suitable for biotechnological applications.
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Affiliation(s)
- Saptarshi Chatterjee
- Department of Microbiology, University of Kalyani, Calcutta, West Bengal, India,
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Kotnik T. Prokaryotic diversity, electrified DNA, lightning waveforms, abiotic gene transfer, and the Drake equation: assessing the hypothesis of lightning-driven evolution. Phys Life Rev 2013; 10:384-8. [PMID: 23998923 DOI: 10.1016/j.plrev.2013.07.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 07/29/2013] [Indexed: 12/25/2022]
Affiliation(s)
- Tadej Kotnik
- Department of Biomedical Engineering, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, SI-1000 Ljubljana, Slovenia.
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Teissié J. Was Zeus responsible for horizontal gene transfer: a comment on "Lightning-triggered electroporation and electrofusion as possible contributors to natural horizontal gene transfer" by Tadej Kotnik. Phys Life Rev 2013; 10:371-2. [PMID: 23871432 DOI: 10.1016/j.plrev.2013.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 07/03/2013] [Indexed: 12/20/2022]
Affiliation(s)
- J Teissié
- CNRS, IPBS (Institut de Pharmacologie et de Biologie Structurale), 205 route de Narbonne, BP 64182, F-31077 Toulouse, France; Université de Toulouse, UPS, IPBS, F-31077 Toulouse, France.
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Magaña-Ortíz D, Coconi-Linares N, Ortiz-Vazquez E, Fernández F, Loske AM, Gómez-Lim MA. A novel and highly efficient method for genetic transformation of fungi employing shock waves. Fungal Genet Biol 2013; 56:9-16. [DOI: 10.1016/j.fgb.2013.03.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 03/22/2013] [Accepted: 03/26/2013] [Indexed: 01/09/2023]
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Development of micro-shock wave assisted dry particle and fluid jet delivery system. Appl Microbiol Biotechnol 2012; 96:647-62. [PMID: 22763845 DOI: 10.1007/s00253-012-4196-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 05/17/2012] [Accepted: 05/18/2012] [Indexed: 01/10/2023]
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