1
|
Deng K, Huang Q, Yan X, Dai Y, Zhao J, Xiong X, Wang H, Chen X, Chen P, Liu L. Facile fabrication of a novel, photodetachable salecan-based hydrogel dressing with self-healing, injectable, and antibacterial properties based on metal coordination. Int J Biol Macromol 2024; 264:130551. [PMID: 38431010 DOI: 10.1016/j.ijbiomac.2024.130551] [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: 10/29/2023] [Revised: 02/05/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Achieving the controllable detachment of polysaccharide-based wound dressings is challenging. In this study, a novel, photodetachable salecan-based hydrogel dressing with injectable, self-healing, antibacterial, and wound healing properties was developed using a green and facile approach. A salecan hydrogel with a uniform porous structure and water content of 90.4 % was prepared by simply mixing salecan and an Fe3+-citric acid complexing solution in an acidic D-(+)-glucono-1,5-lactone environment. Metal coordinate interactions were formed between the released Fe3+ ions and carboxyl groups on the salecan polysaccharide, inducing homogeneous gelation. Benefiting from this dynamic and reversible crosslinking, the salecan hydrogel exhibited self-healing and injectable behavior, facilitating the formation of the desired shapes in situ. The exposure of Fe3+-citric acid to UV light (365 nm) resulted in the reduction of Fe3+ to Fe2+ through photochemical reactions, enabling phototriggered detachment. Moreover, the hydrogel exhibited excellent biocompatibility and satisfactory antibacterial efficacy against Escherichia coli and Staphylococcus aureus of 72.5 % and 85.3 %, respectively. The adhesive strength of the salecan hydrogel to porcine skin was 1.06 ± 0.12 kPa. In vivo wound healing experiments further highlighted the advantages of the prepared hydrogel in alleviating the degree of wound inflammation and promoting tissue regeneration within 12 days.
Collapse
Affiliation(s)
- Ke Deng
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Qin Huang
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Xiaotong Yan
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yan Dai
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Juan Zhao
- Sichuan Synlight Biotech Ltd., 88 Keyuan South Road, Chengdu 610000, China
| | - Xia Xiong
- Department of Dermatology, The Affiliated Hospital, Southwest Medical University, Luzhou 646000, China
| | - Hailan Wang
- Department of Dermatology, The Affiliated Hospital, Southwest Medical University, Luzhou 646000, China
| | - Xianggui Chen
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Pengfei Chen
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China.
| | - Li Liu
- Department of Dermatology, The Affiliated Hospital, Southwest Medical University, Luzhou 646000, China.
| |
Collapse
|
2
|
Wan XY, Pan YP, Shu M, Geng JT, Wu GP, Zhong C. Paramyosin from field snail (Bellamya quadrata): Structural characteristics and its contribution to enhanced the gel properties of myofibrillar protein. Int J Biol Macromol 2024; 262:130097. [PMID: 38342265 DOI: 10.1016/j.ijbiomac.2024.130097] [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: 11/15/2023] [Revised: 01/30/2024] [Accepted: 02/08/2024] [Indexed: 02/13/2024]
Abstract
To assess the blending effect of field snails with grass carp muscle, the effects of paramyosin (PM) and actomyosin (AM) with different mixture ratios on the gel properties of the binary blend system were investigated in our work. The purified PM from field snail muscle was about 95 kDa on SDS-PAGE. Its main secondary structure was α-helix, which reached to 97.97 %. When the amount of PM increased in the binary blend system, their rheological indices and gel strength were improved. The water holding capacity (WHC) increased to 86.30 % at a mixture ratio of 2:8. However, the WHC and the area of immobile water (P22) dramatically decreased, and the area of free water (P23) increased when the mixture ratio exceeded 4:6. The low level of PM in binary blend system promoted the formation of a homogenous and dense gel network through non-covalent interactions as observed results of SEM and FTIR. When there were redundant PM molecules, the development of heterostructure via hydrophobic interaction of tail-tail contributed to the reduced gel properties of the binary blend system. These findings provided new insight into the binary blend system of PM and AM with different ratios to change the gel properties of myofibrillar protein.
Collapse
Affiliation(s)
- Xuan-Ying Wan
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China
| | - Yu-Ping Pan
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China
| | - Mei Shu
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China
| | - Jie-Ting Geng
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Konan, Minato-ku, Tokyo 108-8477, Japan
| | - Guo-Ping Wu
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China.
| | - Chan Zhong
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China.
| |
Collapse
|