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Ojah N, Borah R, Ahmed GA, Mandal M, Choudhury AJ. Surface modification of electrospun silk/AMOX/PVA nanofibers by dielectric barrier discharge plasma: physiochemical properties, drug delivery and in-vitro biocompatibility. Prog Biomater 2020; 9:219-237. [PMID: 33206319 PMCID: PMC7718379 DOI: 10.1007/s40204-020-00144-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/27/2020] [Indexed: 12/22/2022] Open
Abstract
The naturally obtained protein Bombyxmori silk is a biocompatible polymer with excellent mechanical properties and have the potential in controlled drug delivery applications. In this work, we have demonstrated dielectric barrier discharge (DBD) oxygen (O2) plasma surface modified electrospun Bombyxmori silk/Amoxicillin hydrochloride trihydrate (AMOX)/polyvinyl alcohol (PVA) nanofibers for drug release applications with controlled plasma treatment duration (1-10 min). The findings indicate that plasma treated electrospun nanofibers for 1-3 min exhibited significant enhancement in tensile strength, Young's modulus, wettability and surface energy. The plasma treated electrospun nanofibers for 1-5 min showed remarkable increase in AMOX released rate, whereas the electrospun nanofibers treated with plasma irradiation beyond 5 min showed only marginal increase. Moreover, the plasma treated nanofibers also exhibited good antibacterial activity against both E. coli (gram negative) and S. aureus (gram positive) bacteria. The untreated and the plasma treated silk/AMOX/PVA electrospun nanofibers for 1-3 min showed enhanced viability of primary adipose derived mesenchymal stem cells (ADMSCs) growth on them and much less hemolysis activity (< 5%). The in vitro biocompatibility of various electrospun nanofibers were further corroborated by live/dead imaging and cytoskeletal architecture assessment demonstrating enhanced cell adhesion and spreading on the plasma treated nanofibers for 1-3 min. The findings of the present study suggest that the silk/AMOX/PVA electrospun nanofibers with plasma treatment (1-3 min) due to their enhanced drug release ability and biocompatibility can be used as potential wound dressing applications.
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Affiliation(s)
- Namita Ojah
- Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, 784028, India
| | - Rajiv Borah
- Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, Assam, 781035, India
| | - Gazi Ameen Ahmed
- Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, 784028, India
| | - Manabendra Mandal
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, 784028, India
| | - Arup Jyoti Choudhury
- Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, 784028, India.
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Akasapu K, Ojah N, Gupta AK, Choudhury AJ, Mishra P. An innovative approach for iron fortification of rice using cold plasma. Food Res Int 2020; 136:109599. [PMID: 32846623 DOI: 10.1016/j.foodres.2020.109599] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 11/28/2022]
Abstract
In the present study, an innovative cold plasma treatment was used as a tool to fortify the white rice. The amounts of ferrous sulphate and ascorbic acid were optimized for improving the bioavailability of iron. White rice samples were treated with plasma at a constant voltage of 20 kV for varying time (10 min and 15 min). The exposure time of plasma was selected based on the surface characteristics, hydrophilicity and thermal properties. Significant improvement was observed in the characteristics of hydrophilicity, surface energy, cooking time and hardness of plasma-treated rice. Plasma treated rice was fortified with the optimum concentrations of iron and ascorbic acid solution. Optimum concentrations of iron and ascorbic acid per 100 g of rice (862.93 mg and 1398.27 mg) were found by conducting experiments using Central Composite Design of Response Surface Methodology. Further, rice was blended with untreated rice in the ratio of 1:100 and 1:200 and was packed in LDPE and PP pouches and was stored at ambient temperature for further storage analysis. The in vitro bioavailability of iron was significantly higher in the plasma-treated fortified rice at both 1.35 and 7.5 pH than in the control sample, and plasma treatment significantly reduced the rate of oxidation of iron during storage.
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Affiliation(s)
- Kumudhini Akasapu
- Department of Food Engineering and Technology, Tezpur University, Tezpur, Assam 784028, India
| | - Namita Ojah
- Department of Physics, Tezpur University, Tezpur, Assam 784028, India
| | - Arun Kumar Gupta
- Department of Food Engineering and Technology, Tezpur University, Tezpur, Assam 784028, India
| | | | - Poonam Mishra
- Department of Food Engineering and Technology, Tezpur University, Tezpur, Assam 784028, India.
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Chutia H, Mahanta CL, Ojah N, Choudhury AJ. Fuzzy logic approach for optimization of blended beverage of cold plasma treated TCW and orange juice. Food Measure 2020. [DOI: 10.1007/s11694-020-00440-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Ojah N, Deka J, Haloi S, Kandimalla R, Gogoi D, Medhi T, Mandal M, Ahmed GA, Choudhury AJ. Chitosan coated silk fibroin surface modified by atmospheric dielectric-barrier discharge (DBD) plasma: a mechanically robust drug release system. Journal of Biomaterials Science, Polymer Edition 2019; 30:1142-1160. [DOI: 10.1080/09205063.2019.1622844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Namita Ojah
- Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, India
| | - Jyotishikha Deka
- Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, India
| | - Saurav Haloi
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, India
| | - Raghuram Kandimalla
- Drug Discovery Laboratory, Institute of Advanced study in Science and Technology, Guwahati, Assam, India
| | - Dolly Gogoi
- Central Instruments Facility, Indian Institute of Technology, Guwahati, Assam, India
| | - Tapas Medhi
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, India
| | - Manabendra Mandal
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, India
| | - Gazi Ameen Ahmed
- Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, India
| | - Arup Jyoti Choudhury
- Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, India
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Chutia H, Kalita D, Mahanta CL, Ojah N, Choudhury AJ. Kinetics of inactivation of peroxidase and polyphenol oxidase in tender coconut water by dielectric barrier discharge plasma. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.11.071] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Das P, Ojah N, Kandimalla R, Mohan K, Gogoi D, Dolui SK, Choudhury AJ. Surface modification of electrospun PVA/chitosan nanofibers by dielectric barrier discharge plasma at atmospheric pressure and studies of their mechanical properties and biocompatibility. Int J Biol Macromol 2018; 114:1026-1032. [DOI: 10.1016/j.ijbiomac.2018.03.115] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 02/06/2018] [Accepted: 03/21/2018] [Indexed: 12/01/2022]
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Gogoi D, Choudhury AJ, Chutia J, Pal AR, Khan M, Choudhury M, Pathak P, Das G, Patil DS. Development of advanced antimicrobial and sterilized plasma polypropylene grafted muga (Antheraea assama) silk as suture biomaterial. Biopolymers 2016; 101:355-65. [PMID: 23913788 DOI: 10.1002/bip.22369] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 07/11/2013] [Accepted: 07/28/2013] [Indexed: 11/09/2022]
Abstract
Surface modification of silk fibroin (SF) materials using environmentally friendly and non-hazardous process to tailor them for specific application as biomaterials has drawn a great deal of interest in the field of biomedical research. To further explore this area of research, in this report, polypropylene (PP) grafted muga (Antheraea assama) SF (PP-AASF) suture is developed using plasma treatment and plasma graft polymerization process. For this purpose, AASF is first sterilized in argon (Ar) plasma treatment followed by grafting PP onto its surface. AASF is a non-mulberry variety having superior qualities to mulberry SF and is still unexplored in the context of suture biomaterial. AASF, Ar plasma treated AASF (AASFAr) and PP-AASF are subjected to various characterization techniques for better comparison and the results are attempted to correlate with their observed properties. Excellent mechanical strength, hydrophobicity, antibacterial behavior, and remarkable wound healing activity of PP-AASF over AASF and AASFAr make it a promising candidate for application as sterilized suture biomaterial.
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Affiliation(s)
- Dolly Gogoi
- Physical Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, 781035, India
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Choudhury AJ, Gogoi D, Chutia J, Kandimalla R, Kalita S, Kotoky J, Chaudhari YB, Khan MR, Kalita K. Controlled antibiotic-releasing Antheraea assama silk fibroin suture for infection prevention and fast wound healing. Surgery 2015; 159:539-47. [PMID: 26328475 DOI: 10.1016/j.surg.2015.07.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 06/22/2015] [Accepted: 07/10/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND The quest for developing silk fibroin as a biomaterial for drug release systems continues to draw research interest owing to its impressive mechanical properties as well as biocompatibility and biodegradability. The aim of this study is to develop low-temperature O2 plasma-treated muga (Antheraea assama) silk fibroin (AASF) yarn impregnated with amoxicillin trihydrate as controlled antibiotic-releasing suture (AASF/O2/AMOX) for preventing postoperative site bacterial infection and fast wound healing. METHODS In this experimental study, AASF and AASF/O2/AMOX sutures are used to close the surgical wounds of adult male Wistar rats of 4 months old and weighing 200-230 g. RESULTS Surface hydrophilicity induced by O2 plasma results in an increase in drug-impregnation efficiency of AASF/O2 yarn by 16.7%. In vitro drug release profiles show continuous and prolonged release of AMOX from AASF/O2/AMOX yarn up to 336 hours. In vitro hemolysis assay reveals that O2 plasma treatment and subsequent impregnation of AMOX do not affect the heertetmocompatibility of AASF yarn. The AASF/O2/AMOX yarn proves to be effective for in vitro growth inhibition of Staphylococcus aureus and Escherichia coli, whereas AASF offers no antibacterial activity against both types of bacteria. In vivo histopathology studies and colony-forming unit count data revealed accelerated wound healing activity of AASF/O2/AMOX over AASF yarn through rapid synthesis and proliferation of collagen, hair follicle, and connective tissues. CONCLUSION Outcomes of this work clearly demonstrate the potential use of AASF/O2/AMOX yarn as a controlled antibiotic-releasing suture biomaterial for superficial surgical applications.
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Affiliation(s)
| | - Dolly Gogoi
- Physical Sciences Division, Institute of Advanced Study in Science and Technology, Assam, India
| | - Joyanti Chutia
- Physical Sciences Division, Institute of Advanced Study in Science and Technology, Assam, India
| | - Raghuram Kandimalla
- Drug Discovery Laboratory, Institute of Advanced Study in Science and Technology, Assam, India
| | - Sanjeeb Kalita
- Drug Discovery Laboratory, Institute of Advanced Study in Science and Technology, Assam, India
| | - Jibon Kotoky
- Drug Discovery Laboratory, Institute of Advanced Study in Science and Technology, Assam, India
| | - Yogesh B Chaudhari
- Molecular Biology and Microbial Biotechnology Laboratory, Institute of Advanced Study in Science and Technology, Assam, India
| | - Mojibur R Khan
- Molecular Biology and Microbial Biotechnology Laboratory, Institute of Advanced Study in Science and Technology, Assam, India
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