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de Souza FFP, Castro-Silva II, Andrade FK, Mattos ALA, de Sousa Lopes M, da Silva Barroso W, de Souza BWS, de Sá Moreira de Souza-Filho M, da Silva ALC. Emulgel based on fish skin collagen-microalgae-silver increased neovascularization and re-epithelialization of full thickness burn in rats. J Biomed Mater Res B Appl Biomater 2024; 112:e35399. [PMID: 38533823 DOI: 10.1002/jbm.b.35399] [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: 10/02/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/28/2024]
Abstract
Deep skin burn represents a global morbidity and mortality problem, and the limitation of topical treatment agents has motivated research to development new formulations capable of preventing infections and accelerating healing. The aim of this work was to develop and characterize an emulgel based on collagen (COL) and gelatin (GEL) extracted from fish skin associated with Chlorella vulgaris extract (CE) and silver nitrate (AgNO3). COL and GEL were characterized by physicochemical and thermal analyses; and CE by electrophoresis and its antioxidant capacity. Three emulgels formulations were developed: COL (0.5%) + GEL (2.5%) (E1), COL+GEL+CE (1%) (E2), and COL+GEL+CE + AgNO3 (0.1%) (E3). All formulations were characterized by physicochemical, rheology assays, and preclinical analyses: cytotoxicity (in vitro) and healing potential using a burn model in rats. COL and GEL showed typical physicochemical characteristics, and CE presented 1.3 mg/mL of proteins and antioxidant activity of 76%. Emulgels presented a coherent physicochemical profile and pseudoplastic behavior. Preclinical analysis showed concentration-dependent cytotoxicity against fibroblast and keratinocytes. In addition, all emulgels induced similar percentages of wound contraction and complete wound closure in 28 days. The histopathological analysis showed higher scores for polymorphonuclear cells to E1 and greater neovascularization and re-epithelialization to E3. Then, E3 formulation has potential to improve burn healing, although its use in a clinical setting requires further studies.
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Affiliation(s)
- Francisco Fábio Pereira de Souza
- Molecular Biotechnology Laboratory, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do PIci, Fortaleza, Ceará, Brazil
| | | | - Fábia Karine Andrade
- Biomaterials and Bioproducts Research Laboratory, Department of Chemical Engineering, Federal University of Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | | | | | - Wallady da Silva Barroso
- Molecular Biotechnology Laboratory, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do PIci, Fortaleza, Ceará, Brazil
| | | | | | - André Luis Coelho da Silva
- Molecular Biotechnology Laboratory, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do PIci, Fortaleza, Ceará, Brazil
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Improved pharmacodynamics of epidermal growth factor via microneedles-based self-powered transcutaneous electrical stimulation. Nat Commun 2022; 13:6908. [PMID: 36376334 PMCID: PMC9663450 DOI: 10.1038/s41467-022-34716-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 11/03/2022] [Indexed: 11/16/2022] Open
Abstract
Epidermal growth factor is an excellent drug for promoting wound healing; however, its conventional administration strategies are associated with pharmacodynamic challenges, such as low transdermal permeability, reduction, and receptor desensitization. Here, we develop a microneedle-based self-powered transcutaneous electrical stimulation system (mn-STESS) by integrating a sliding free-standing triboelectric nanogenerator with a microneedle patch to achieve improved epidermal growth factor pharmacodynamics. We show that the mn-STESS facilitates drug penetration and utilization by using microneedles to pierce the stratum corneum. More importantly, we find that it converts the mechanical energy of finger sliding into electricity and mediates transcutaneous electrical stimulation through microneedles. We demonstrate that the electrical stimulation applied by mn-STESS acts as an "adjuvant" that suppresses the reduction of epidermal growth factor by glutathione and upregulates its receptor expression in keratinocyte cells, successfully compensating for receptor desensitization. Collectively, this work highlights the promise of self-powered electrical adjuvants in improving drug pharmacodynamics, creating combinatorial therapeutic strategies for traditional drugs.
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Rawooth M, Qureshi D, Hoque M, Prasad MPJG, Mohanty B, Alam MA, Anis A, Sarkar P, Pal K. Synthesis and characterization of novel tamarind gum and rice bran oil-based emulgels for the ocular delivery of antibiotics. Int J Biol Macromol 2020; 164:1608-1620. [PMID: 32763397 DOI: 10.1016/j.ijbiomac.2020.07.231] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 11/20/2022]
Abstract
In this study, we developed tamarind gum (TG) and rice bran oil (RBO)-based emulgels. The control formulation (TR0), did not contain RBO. The emulgels were named as TR1, TR2, TR3, and TR4, which contained 5% (w/w), 10% (w/w), 15% (w/w), and 20% (w/w/) of RBO, respectively. The microscopic studies showed that the emulgels were biphasic in nature. FTIR spectroscopy revealed the reduction in the hydrogen bonding with an increase in the RBO content. Impedance profiles suggested that the resistive component of the emulgels was increased as the RBO content was increased. The thermal analysis suggested that the addition of RBO reduced the water holding capacity of the emulgels. Stress relaxation studies revealed that the fluidic component was considerably higher in TG/RBO-based emulgels as compared to TR0. In vitro release study of the model drug (ciprofloxacin HCl; a hydrochloride salt of ciprofloxacin) suggested a significantly lower release from the emulgel matrices (TR1-TR4) in comparison to TR0. However, ex vivo corneal permeation of the drug increased with an increase in the RBO content. Since the emulgels were able to improve the corneal permeation of the model drug, the emulgels can be explored to deliver drugs to the internal structures of the eye.
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Affiliation(s)
- Madhusmita Rawooth
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India
| | - Dilshad Qureshi
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India
| | - Monjurul Hoque
- Department of Food Process Engineering, National Institute of Technology, Rourkela, India
| | | | | | - Mohammad Asif Alam
- Centre of Excellence for Research in Engineering Materials (CEREM), King Saud University, P.O. Box 800, Riyadh, Saudi Arabia
| | - Arfat Anis
- SABIC Polymer Research Center (SPRC), Department of Chemical Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Preetam Sarkar
- Department of Food Process Engineering, National Institute of Technology, Rourkela, India
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India.
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Chen BZ, Zhang LQ, Xia YY, Zhang XP, Guo XD. A basal-bolus insulin regimen integrated microneedle patch for intraday postprandial glucose control. SCIENCE ADVANCES 2020; 6:eaba7260. [PMID: 32832606 PMCID: PMC7439566 DOI: 10.1126/sciadv.aba7260] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/27/2020] [Indexed: 05/02/2023]
Abstract
Multiple daily insulin injections have been a common regimen worldwide for the management of diabetes mellitus but involved potential safety and compliance problems. In this context, a single integrated microneedle patch (IMP) with multiple release kinetics is demonstrated to provide better physiologic insulin coverage for postprandial glycemic excursion in a convenient and pain-free manner. The combination of rapid separating technique and multiple individual microneedle arrays provides the combined ability to efficiently deliver insulin into the skin within seconds and to independently control insulin release kinetics. In addition, the diabetic rats with a traditional breakfast-lunch-dinner lifestyle exhibit obvious intraday glucose fluctuations, while the hypoglycemic experiments indicate that the IMP is capable of simultaneous bolus and sustained insulin delivery to closely match the glucose rise that occurs in response to meals and efficiently minimize excessive fluctuations, suggesting the potential of this new transdermal insulin delivery system as substitutes for multiple daily injections.
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Affiliation(s)
- Bo Zhi Chen
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Li Qin Zhang
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yi Yun Xia
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xiao Peng Zhang
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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Mallick SP, Suman DK, Singh BN, Srivastava P, Siddiqui N, Yella VR, Madhual A, Vemuri PK. Strategies toward development of biodegradable hydrogels for biomedical applications. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1719135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | | | - Bhisham Narayan Singh
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Pradeep Srivastava
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Nadeem Siddiqui
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, India
| | - Venkata Rajesh Yella
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, India
| | | | - Praveen Kumar Vemuri
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, India
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Satapathy M, Quereshi D, Hanh Nguyen TT, Pani D, Mohanty B, Anis A, Maji S, Kim D, Sarkar P, Pal K. Preparation and characterization of cocoa butter and whey protein isolate based emulgels for pharmaceutical and probiotics delivery applications. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2019.1583577] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Monalisha Satapathy
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India
| | - Dilshad Quereshi
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India
| | - Thi Thanh Hanh Nguyen
- Department of International Agricultural Technology & Institute of Green Bioscience and Technology, Seoul National University, Seoul, Republic of Korea
| | | | | | - Arfat Anis
- Department of Chemical Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Samarendra Maji
- Department of Chemistry and Research Institute, SRM Institute of Science and Technology (SRMIST), Kattankulathur, Chennai, India
| | - Doman Kim
- Department of International Agricultural Technology & Institute of Green Bioscience and Technology, Seoul National University, Seoul, Republic of Korea
| | - Preetam Sarkar
- Department of Food Process Engineering, National Institute of Technology, Rourkela, India
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India
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Singh B, Varshney L, Francis S, Rajneesh. Synthesis and characterization of tragacanth gum based hydrogels by radiation method for use in wound dressing application. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2017.01.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Heterocycles of Natural Origin as Non-Toxic Reagents for Cross-Linking of Proteins and Polysaccharides. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2016-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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