101
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Du Y, Li D, Liu L, Gai G. Recent Achievements of Self-Healing Graphene/Polymer Composites. Polymers (Basel) 2018; 10:E114. [PMID: 30966150 PMCID: PMC6415098 DOI: 10.3390/polym10020114] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/21/2018] [Accepted: 01/22/2018] [Indexed: 02/07/2023] Open
Abstract
Self-healing materials have attracted much attention because that they possess the ability to increase the lifetime of materials and reduce the total cost of systems during the process of long-term use; incorporation of functional material enlarges their applications. Graphene, as a promising additive, has received great attention due to its large specific surface area, ultrahigh conductivity, strong antioxidant characteristics, thermal stability, high thermal conductivity, and good mechanical properties. In this brief review, graphene-containing polymer composites with self-healing properties are summarized including their preparations, self-healing conditions, properties, and applications. In addition, future perspectives of graphene/polymer composites are briefly discussed.
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Affiliation(s)
- Yongxu Du
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Dong Li
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Libin Liu
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Guangjie Gai
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
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102
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Zhu M, Liu P, Shi H, Tian Y, Ju X, Jiang S, Li Z, Wu M, Niu Z. Balancing antimicrobial activity with biological safety: bifunctional chitosan derivative for the repair of wounds with Gram-positive bacterial infections. J Mater Chem B 2018; 6:3884-3893. [DOI: 10.1039/c8tb00620b] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Because of the balance between antimicrobial activity and biological safety, the bifunctional chitosan derivative could control infections and promote healing simultaneously.
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Affiliation(s)
- Meng Zhu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Peng Liu
- TEDA Institute of Biological Sciences and Biotechnology
- Nankai University
- Tianjin 300457
- China
| | - Haigang Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Ye Tian
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xiaoyan Ju
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Shidong Jiang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Zhuang Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Man Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Zhongwei Niu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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103
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Kalita H, Hazarika A, Kandimalla R, Kalita S, Devi R. Development of banana (Musa balbisiana) pseudo stem fiber as a surgical bio-tool to avert post-operative wound infections. RSC Adv 2018; 8:36791-36801. [PMID: 35558952 PMCID: PMC9089245 DOI: 10.1039/c8ra04470h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 10/14/2018] [Indexed: 11/21/2022] Open
Abstract
The search to develop an ideal suture material encourages us to explore novel suture biomaterials with superior characteristics to the current commercially available products. Surgical sutures play a crucial role in the development of post-operative wound infection by acting as a substrate for biofilm formation which leads to dehisced wounds. In this context, the present invention meets this need by fabricating banana (Musa balbisiana) fibre into an advanced antimicrobials releasing suture biomaterial (BSc) for the prevention of post-operative wound infection. Suture material developed from banana pseudo stem fiber was impregnated with chloramphenicol, clotrimazole and growth factors with the aid of a hydro-gel system. The fabricated suture material was found to be biocompatible towards human erythrocytes and L929 mouse fibroblast cells. BSc exhibited promising physico-chemical characteristics which were comparable to the commercially available Bombyx mori silk fibroin (BMSF) suture. BSc displayed a biphasic release pattern with sustained release of chloramphenicol for up to 140 h. Apart from being environment friendly and having a facile fabrication method, this advanced suture biomaterial showed broad spectrum in vitro antimicrobial activity against bacterial and fungal pathogens. BSc successfully impeded biofilm formation on its surface, as is evident from the confocal microscopy analysis. This contributes to superior wound healing efficacy in terms of reduced microbial burden and a subsequent decrease in the inflammatory cytokine levels. Histopathological observations further supported the pronounced healing efficacy of BSc sutured wounds. The findings of this study establish the banana pseudo stem fiber as a novel advanced suture biomaterial to prevent post-operative wound infections. A novel antimicrobial suture biomaterial developed from banana waste fibers to avert post operative wound infections.![]()
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Affiliation(s)
- Himadri Kalita
- Life Sciences Division
- Institute of Advanced Study in Science and Technology
- Guwahati
- India
| | - Ankita Hazarika
- Life Sciences Division
- Institute of Advanced Study in Science and Technology
- Guwahati
- India
| | - Raghuram Kandimalla
- Drug Discovery Laboratory
- Institute of Advanced Study in Science and Technology
- Guwahati
- India
| | - Sanjeeb Kalita
- Drug Discovery Laboratory
- Institute of Advanced Study in Science and Technology
- Guwahati
- India
| | - Rajlakshmi Devi
- Life Sciences Division
- Institute of Advanced Study in Science and Technology
- Guwahati
- India
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104
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Masteri‐Farahani M, Modarres M. Heterogenized peroxopolyoxotungstate catalyst on the surface of clicked magnetite‐graphene oxide nanocomposite: Magnetically recoverable epoxidation catalyst. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | - M. Modarres
- Faculty of ChemistryKharazmi University Tehran Islamic Republic of Iran
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105
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Choudhary P, Parandhaman T, Ramalingam B, Duraipandy N, Kiran MS, Das SK. Fabrication of Nontoxic Reduced Graphene Oxide Protein Nanoframework as Sustained Antimicrobial Coating for Biomedical Application. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38255-38269. [PMID: 29053255 DOI: 10.1021/acsami.7b11203] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bacterial colonization on medical devices is a major concern in the healthcare industry. In the present study, we report synthesis of environmental sustainable reduced graphene oxide (rGO) on the large scale through biosynthetic route and its potential application for antibacterial coating on medical devices. HRTEM image depicts formation of graphene nanosheet, while DLS and ζ potential studies reveal that in aqueous medium the average hydrodynamic size and surface charge of rGO are 4410 ± 116 nm and -25.2 ± 3.2 mV, respectively. The Raman, FTIR, and XPS data suggest in situ conjugation of protein with rGO. The as-synthesized rGO protein nanoframework exhibits dose-dependent antibacterial activity and potential of killing of 94% of Escherichia coli when treated with 80 μg/mL of rGO for 4 h. The hemolytic and cytotoxicity studies demonstrate that rGO protein nanoframework is highly biocompatible at the same concentration showing significant antimicrobial properties. The rGO coated on the glass surface obtained through covalent bonding exhibits potent antibacterial activity. Antibacterial mechanism further demonstrates that rGO-protein nanoframework in dispersed state (rGO solution) exerts bactericidal effect through physical disruption accompanied by ROS-mediated biochemical responses. The rGO subsequently entering into the cytoplasm through the damaged membrane causes metabolic imbalance in the cells. In sharp contrast, physical damage of the cell membrane is the dominant antibacterial mechanism of rGO in the immobilized state (rGO coated glass). The obtained results help indepth understanding of the antibacterial mechanism of the biosynthesized rGO and a novel way to develop nontoxic antibacterial coating on medical devices to prevent bacterial infection.
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Affiliation(s)
- Priyadarshani Choudhary
- Biological Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Reserach Institute (CLRI) , Chennai 600020, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
| | - Thanusu Parandhaman
- Biological Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Reserach Institute (CLRI) , Chennai 600020, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
| | - Baskaran Ramalingam
- Biological Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Reserach Institute (CLRI) , Chennai 600020, India
| | - Natarajan Duraipandy
- Biological Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Reserach Institute (CLRI) , Chennai 600020, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
| | - Manikantan Syamala Kiran
- Biological Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Reserach Institute (CLRI) , Chennai 600020, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
| | - Sujoy K Das
- Biological Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Reserach Institute (CLRI) , Chennai 600020, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
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106
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Chitosan oligosaccharide-N-chlorokojic acid mannich base polymer as a potential antibacterial material. Carbohydr Polym 2017; 182:225-234. [PMID: 29279119 DOI: 10.1016/j.carbpol.2017.11.019] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 08/22/2017] [Accepted: 11/03/2017] [Indexed: 01/12/2023]
Abstract
Here, a nontoxic antibacterial material based on Chitosan Oligosaccharide-N-Chlorokojic acid Mannich base (COS-N-MB) that was synthesized by using the selective partial alkylation reaction displaying excellent activity against bacterial infection. The proposed mechanism of the action of COS-N-MB is that this antibacterial material with positive charge and synergistic antibacterial effects can promote it's adsorption to bacterial cell wall through electrostatic interaction and chelating metal cations. It changed the permeability of the membrane, caused cellular leakage, and destroyed the membrane integrity, leading to complete membrane disruption and eventually death of the bacteria. Besides, COS-N-MB can interact with membrane proteins, causing deformation in the structure and functionality. The good biocompatibility, noncytotoxic, and low hemolysis made this novel material a promising and effective compound for antibacterial applications.
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107
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Sanmugam A, Vikraman D, Park HJ, Kim HS. One-Pot Facile Methodology to Synthesize Chitosan-ZnO-Graphene Oxide Hybrid Composites for Better Dye Adsorption and Antibacterial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E363. [PMID: 29099076 PMCID: PMC5707580 DOI: 10.3390/nano7110363] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 11/24/2022]
Abstract
Novel chitosan-ZnO-graphene oxide hybrid composites were prepared using a one-pot chemical strategy, and their dye adsorption characteristics and antibacterial activity were demonstrated. The prepared chitosan and the hybrids such as chitosan-ZnO and chitosan-ZnO-graphene oxide were characterized by UV-Vis absorption spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. The thermal and mechanical properties indicate a significant improvement over chitosan in the hybrid composites. Dye adsorption experiments were carried out using methylene blue and chromium complex as model pollutants with the function of dye concentration. The antibacterial properties of chitosan and the hybrids were tested against Gram-positive and Gram-negative bacterial species, which revealed minimum inhibitory concentrations (MICs) of 0.1 µg/mL.
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Affiliation(s)
- Anandhavelu Sanmugam
- Department of Chemistry (S&H), Vel Tech Multitech Dr.Rangarajan Dr.Sakunthala Engineering College, Chennai 600062, India.
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea.
| | - Hui Joon Park
- Department of Electrical and Computer Engineering, Ajou University, Suwon 16499, Korea.
- Department of Energy Systems Research, Ajou University, Suwon 16499, Korea.
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea.
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108
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Magnetic polyaniline-chitosan nanocomposite decorated with palladium nanoparticles for enhanced catalytic reduction of 4-nitrophenol. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.06.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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109
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Panwar D, Kaira GS, Kapoor M. Cross-linked enzyme aggregates (CLEAs) and magnetic nanocomposite grafted CLEAs of GH26 endo-β-1,4-mannanase: Improved activity, stability and reusability. Int J Biol Macromol 2017; 105:1289-1299. [PMID: 28768184 DOI: 10.1016/j.ijbiomac.2017.07.154] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/19/2017] [Accepted: 07/26/2017] [Indexed: 01/09/2023]
Abstract
A comparative study on immobilization of recombinant endo-β-1,4-mannanase (ManB-1601), using cross-linked aggregated form (MB-C) and novel chitosan magnetic nanocomposites of MB-C (MB-Mag-C) was carried out. FT-IR and Raman spectroscopy were used to confirm the surface modifications while, scanning electron and atomic force microscopy were performed to demonstrate the surface topology and magnetic nature of MB-C and MB-Mag-C. Among MB-C and MB-Mag-C, the former showed better activity and stability in broad range of pH, thermo-stability and kinetic parameters while, the latter showed higher temperature optima and solvent stability. MB-C and MB-Mag-C when compared with free enzyme showed up to 73.2% higher activity (pH 4-9), up to 95.6% higher stability (pH 3-10, 9h incubation at room temperature), up to 15°C higher optimal temperature, higher stability (up to 83%) in the presence of solvents and up to 1.62-fold higher deactivation energy (Ed). Immobilized enzymes were able to repeatedly hydrolyze locust bean gum till 12 cycles and generated predominantly di-, tri- and tetra- species of β-manno-oligosaccharides.
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Affiliation(s)
- Deepesh Panwar
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru 570 020, India
| | - Gaurav Singh Kaira
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru 570 020, India
| | - Mukesh Kapoor
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru 570 020, India.
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110
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Yuan Y, Yan Z, Mu RJ, Wang L, Gong J, Hong X, Haruna MH, Pang J. The effects of graphene oxide on the properties and drug delivery of konjac glucomannan hydrogel. J Appl Polym Sci 2017. [DOI: 10.1002/app.45327] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yi Yuan
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
| | - Zhiming Yan
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
| | - Ruo-Jun Mu
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
| | - Lin Wang
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
| | - Jingni Gong
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
| | - Xin Hong
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
| | - Maryam Hajia Haruna
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
| | - Jie Pang
- College of Food Science; Fujian Agriculture and Forestry University; Fuzhou 350002 China
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111
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Hoque J, Haldar J. Direct Synthesis of Dextran-Based Antibacterial Hydrogels for Extended Release of Biocides and Eradication of Topical Biofilms. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15975-15985. [PMID: 28422484 DOI: 10.1021/acsami.7b03208] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Cationic small molecular biocides have been developed as promising antibiofilm agents because of their tunability in chemical structures and their ability to disrupt established biofilms. However, the impact of biocides in antibiofilm treatment is largely limited due to the lack of an effective delivery system that can ensure sustained release of biocides at the target site. Herein we report a biocide-encapsulated antibacterial and antibiofilm hydrogel that acts as an efficient delivery vehicle for the biocide and eradicates matured bacterial biofilm. The hydrogels are prepared using dextran methacrylate (Dex-MA), a biocompatible and photopolymerizable polymer, and a nontoxic cationic biocide with two cationic charges, two nonpeptidic amide bonds, and optimized amphiphilicity, which is capable of eradicating established bacterial biofilms. The gels, prepared via direct loading of the biocide and with highly controllable amounts, display 100% activity against both drug-sensitive and drug-resistant bacteria such as methicillin-resistant Staphylococcus aureus (MRSA). Importantly, the gels are shown to release the biocide and kill bacteria for an extended period of time (until day 5). When being treated with the established bacterial biofilms, the released biocide from the gel is shown to completely eradicate establishedS. aureus, Escherichia coli, and MRSA biofilms, the most common biofilm forming bacteria that cause severe infections (e.g., skin infections, urinary tract infections, etc.) in humans. Moreover, the gels were shown to annihilate preformed MRSA biofilm with >99.99% bacterial reduction under in vitro and in vivo conditions in a superficial MRSA infection model in mice. Notably, when tested, excellent skin compatibility is observed for these materials in various animal models such as a rat model of acute dermal toxicity, guinea pig model of skin sensitization, and rabbit model of skin irritation. The biocompatible antibacterial and antibiofilm hydrogels developed herein thus might be useful in treating bacterial biofilm associated infections, especially topical infections.
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Affiliation(s)
- Jiaul Hoque
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur,Bengaluru 560064, India
| | - Jayanta Haldar
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur,Bengaluru 560064, India
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112
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Holt BD, Arnold AM, Sydlik SA. Peptide-functionalized reduced graphene oxide as a bioactive mechanically robust tissue regeneration scaffold. POLYM INT 2017. [DOI: 10.1002/pi.5375] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Brian D Holt
- Department of Chemistry; Carnegie Mellon University; Pittsburgh USA
| | - Anne M Arnold
- Department of Chemistry; Carnegie Mellon University; Pittsburgh USA
| | - Stefanie A Sydlik
- Department of Chemistry; Carnegie Mellon University; Pittsburgh USA
- Department of Biomedical Engineering; Carnegie Mellon University; Pittsburgh USA
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113
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Liu G, Li K, Luo Q, Wang H, Zhang Z. PEGylated chitosan protected silver nanoparticles as water-borne coating for leather with antibacterial property. J Colloid Interface Sci 2017; 490:642-651. [DOI: 10.1016/j.jcis.2016.11.103] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/29/2016] [Accepted: 11/29/2016] [Indexed: 10/20/2022]
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114
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Kalita H, Hazarika A, Kalita S, Kandimalla R, Devi R. Antimicrobials tethering on suture surface through a hydrogel: a novel strategy to combat postoperative wound infections. RSC Adv 2017. [DOI: 10.1039/c7ra04888b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study aimed to develop a novel biocompatible suture biomaterial from Eri silk waste to avoid surgical site infections.
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Affiliation(s)
- Himadri Kalita
- Life Sciences Division
- Institute of Advanced Study in Science and Technology (IASST)
- Guwahati-781035
- India
| | - Ankita Hazarika
- Life Sciences Division
- Institute of Advanced Study in Science and Technology (IASST)
- Guwahati-781035
- India
| | | | | | - Rajlakshmi Devi
- Life Sciences Division
- Institute of Advanced Study in Science and Technology (IASST)
- Guwahati-781035
- India
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115
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Pramanik A, Jones S, Gao Y, Sweet C, Begum S, Shukla MK, Buchanan JP, Moser RD, Ray PC. A bio-conjugated chitosan wrapped CNT based 3D nanoporous architecture for separation and inactivation of Rotavirus and Shigella waterborne pathogens. J Mater Chem B 2017; 5:9522-9531. [DOI: 10.1039/c7tb02815f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The multifunctional bio-conjugated 3D architecture reported here represents huge advances in the fields of environmental remediation and sustainable remediation.
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Affiliation(s)
- Avijit Pramanik
- Department of Chemistry and Biochemistry
- Jackson State University
- Jackson
- USA
| | - Stacy Jones
- Department of Chemistry and Biochemistry
- Jackson State University
- Jackson
- USA
| | - Ye Gao
- Department of Chemistry and Biochemistry
- Jackson State University
- Jackson
- USA
| | - Carrie Sweet
- Department of Chemistry and Biochemistry
- Jackson State University
- Jackson
- USA
| | - Salma Begum
- Department of Chemistry and Biochemistry
- Jackson State University
- Jackson
- USA
| | - Manoj K. Shukla
- US Army Engineer Research and Development Center
- Vicksburg
- USA
| | | | - Robert D. Moser
- US Army Engineer Research and Development Center
- Vicksburg
- USA
| | - Paresh Chandra Ray
- Department of Chemistry and Biochemistry
- Jackson State University
- Jackson
- USA
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116
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Kandimalla R, Dash S, Kalita S, Choudhury B, Malampati S, Kalita K, Kalita B, Devi R, Kotoky J. Protective Effect of Bioactivity Guided Fractions of Ziziphus jujuba Mill. Root Bark against Hepatic Injury and Chronic Inflammation via Inhibiting Inflammatory Markers and Oxidative Stress. Front Pharmacol 2016; 7:298. [PMID: 27656145 PMCID: PMC5013132 DOI: 10.3389/fphar.2016.00298] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 08/23/2016] [Indexed: 11/13/2022] Open
Abstract
The tribal communities of North Eastern India rely on herbal medicine to cure various disease conditions. Ziziphus jujuba Mill. (Rhamnaceae) is one of such medicinal plants used for curing liver ailments, insomnia, anemia, diarrhea, diabetic complications, cancer, and loss of appetite. The present study was aimed to describe the protective ability of Z. jujuba root bark (ZJRB) against hepatic injury and chronic inflammation. Bioactivity guided fractionation of Z. jujuba methanol extract (ZJME) was performed using different solvents of increasing polarity viz. hexane (ZJHF), chloroform (ZJCF), ethyl acetate (ZJEAF), water (ZJWF), and residue (ZJMR). In vitro antioxidant results revealed that both ZJME and ZJWF possess strong antioxidant activity among all the fractions and mother extract tested. Further, ZJME and ZJWF showed significant protection against CCl4 intoxicated HepG2 cell lines by means of increased cell viability and decreased LDH levels compared to control group. ZJME at 200, 400 mg/kg and ZJWF at 50, 100 mg/kg inhibited the lipid peroxidation and significantly restored the liver function markers (AST, ALT, ALP, LDH, SOD, and CAT) and cytokine levels (TNF-α, Il-1β, and Il-10) in CCl4 induced acute liver damage in rats. All the results were comparable with standard drug silymarin which was further confirmed by histopathology analysis of liver. Similarly, inflammation and increase inflammatory cytokines levels of carrageenan induced paw edema in rats have been refurbished to normal levels on par with the standard drug indomethacin. ZJWF demonstrated potent response than ZJME in all the biological tests conducted. The results of the study signify the ability of ZJRB as good therapeutic agent for liver toxicity and chronic inflammation.
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Affiliation(s)
- Raghuram Kandimalla
- Drug Discovery Laboratory, Institute of Advanced Study in Science and TechnologyGuwahati, India
| | - Suvakanta Dash
- Girijananda Chowdhury Institute of Pharmaceutical ScienceGuwahati, India
| | - Sanjeeb Kalita
- Drug Discovery Laboratory, Institute of Advanced Study in Science and TechnologyGuwahati, India
| | - Bhaswati Choudhury
- Drug Discovery Laboratory, Institute of Advanced Study in Science and TechnologyGuwahati, India
| | - Sandeep Malampati
- School of Chinese Medicine, Hong Kong Baptist UniversityHong Kong, China
| | | | - Bhupalee Kalita
- Jawaharlal Nehru Centre for Advanced Scientific ResearchBengaluru, India
| | - Rajlakshmi Devi
- Drug Discovery Laboratory, Institute of Advanced Study in Science and TechnologyGuwahati, India
| | - Jibon Kotoky
- Drug Discovery Laboratory, Institute of Advanced Study in Science and TechnologyGuwahati, India
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