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Qi H, Yang L, Ma R, Xiang Y, Dai Y, Ren J, Xu BB, El-Bahy ZM, Thabet HK, Huang Z, Ben W, Yu H, Guo Z. Amoxicillin-laded sodium alginate/cellulose nanocrystals/polyvinyl alcohol composite nanonetwork sponges with enhanced wound healing and antibacterial performance. Int J Biol Macromol 2024:135701. [PMID: 39288864 DOI: 10.1016/j.ijbiomac.2024.135701] [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: 02/25/2024] [Revised: 09/01/2024] [Accepted: 09/13/2024] [Indexed: 09/19/2024]
Abstract
Wound healing is a complex process and reuires a long repair process. Poor healing effect is normally a challenge for wound healing. Designing sponge dressings with drug-assisted therapy, good breathability, and multiple functional structures effectively promotes wound healing. In this work, a flexible amoxicillin-laded (AMX) sodium alginate (SA)/cellulose nanocrystals (CNCS)/ polyvinyl alcoho (PVA) (SA/CNCS/PVA-AMX, SCP-AMX) wound dressing was designed and built with an excellent porous structure, suitable porosity, and anti-bacterial properties for promoting wound tissue reparation. The porous structure of the wound dressing was fabricated by freeze-thawing cyclic and freeze-dried molding process. This wound dressing exhibited a 3D porous structure for soft-tissue-engineering application, including high porosity (84.2 %), swelling ratio (1513 %), tensile strength (1.79 MPA), and flexibility. With the inhibition zones of Escherichia Coli (E. coli) and Staphylococcus Aureus (S, Aureus) being 1.96 and4.58 cm, respectively, this wound dressing demonstrated good antibacterial activity against E. coli and S. aureus. More importantly, wound healing Assay in vivo indicates that SCP-AMX could inhibit wound infection, promote collagen deposition, reduce inflammation, and accelerate granulation tissue and wound healing. Thus, the reported wounding dressings present excellent biocompatibility, high antibacterial activities, and excellent biosafety with great potential in wound healing applications.
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Affiliation(s)
- Houjuan Qi
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Lifei Yang
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Rongxiu Ma
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Yushuang Xiang
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Yuxin Dai
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Juanna Ren
- Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Ben Bin Xu
- Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK
| | - Zeinhom M El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt
| | - Hamdy Khamees Thabet
- Department of Chemistry, College of Sciences and Arts, Northern Border University, Rafha 91911, Saudi Arabia
| | - Zhanhua Huang
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Wei Ben
- The First Affiliated Hospital of Harbin Medical University, Harbin 150040, China.
| | - Huimin Yu
- Chinese Medicine Department of the 2nd Affiliated Hospital of Harbin Medical University, Harbin 150086, China.
| | - Zhanhu Guo
- Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.
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Sopanrao KS, Sreedhar I. Sustainable Zn 2+ removal using highly efficient, novel, and cost-effective chitosan-magnetic biochar composite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33727-7. [PMID: 38771536 DOI: 10.1007/s11356-024-33727-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
This study focused on the development of a sustainable and low-cost adsorbent derived from the chitosan-biochar composite for the removal of Zn2+ from an aqueous solution. Biochar was prepared from cotton stalk residue by pyrolysis at 600 °C for 2 h, modified with FeCl3, and composed with chitosan in various ratios (1:3, 1:1, 3:1), leading to the formation of an efficient, thermally stable, and rich with functional groups chitosan-biochar composite denoted as CHB-Fe-CS. Functional groups (hydroxyl, carboxyl, and amine) were identified as key contributors to the adsorption mechanism. Langmuir isotherm (R2 = 0.99) and Pseudo-Second order (R2 = 0.99) were best fitted models with the experimental results indicating chemisorption-driven monolayer adsorption. The results revealed CHB-Fe-CS (3:1) composite obtained the highest adsorption capacity of 117.50 mg/g for Zn2+ under optimal conditions viz., 180 min batch time, 500 mg/l metal concentration, 4 g/l adsorbent dosage, 40 °C solution temperature, and 5.0 pH. Regeneration of the used adsorbent was performed using 0.2 mol/l HCl and obtained desorption efficiency of 67.48% and 51.48% after the 4th and 8th cycles. The adsorption mechanisms were dominated by ion exchange, surface complexation, and electrostatic attraction compared to intra-particle diffusion and physisorption. The CHB-Fe-CS demonstrated an economical, environment friendly, and good performing adsorbent for water decontamination.
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Affiliation(s)
- Khandgave Santosh Sopanrao
- Department of Chemical Engineering, Birla Institute of Technology & Science, Pilani Hyderabad Campus, Hyderabad, 500078, India
| | - Inkollu Sreedhar
- Department of Chemical Engineering, Birla Institute of Technology & Science, Pilani Hyderabad Campus, Hyderabad, 500078, India.
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Ghosh D, De S, Deka D, Das G. Amphiphilic polyphenol incorporated hydrogel derived from mucoadhesive of Dillenia indica: Potential antioxidant and adsorbent. Int J Biol Macromol 2024; 254:127759. [PMID: 38287597 DOI: 10.1016/j.ijbiomac.2023.127759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 01/31/2024]
Abstract
In this work, the mucoadhesive substances from the fruits and seeds of Dillenia indica (DI), a plant present abundantly in India, have been extracted and utilised to prepare a hydrogel. A synthetically prepared amphiphilic polyphenol (L) has been incorporated within the hydrogel network to enhance the hydrogelation property. Moreover, the DI-L hydrogel's total phenolic content and radical scavenging prospects have been investigated. The DI-L hydrogel has shown good, sensitive, and efficient adsorptive removal of Fe(III) from the aqueous medium with an adsorption capacity of 6.157 mg/g for an initial concentration of 10 mg/L of Fe(III) solution. As a result, these findings elucidate the most innovative application of transforming fruit mucoadhesive into sustainable environmental solutions.
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Affiliation(s)
- Debolina Ghosh
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Sagnik De
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Deepmoni Deka
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Gopal Das
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam 781039, India; Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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