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Wang K, Xia Z, Yu R, Zhang W, Wang Z, Zhu M, Li R, Hu Z, Chen Z, Xu K, Mu C. Novel Hydrogel Adjuvant of Chinese Medicine External Preparations for Accelerated Healing of Deep Soft Tissue Injuries. ACS Biomater Sci Eng 2024; 10:4425-4436. [PMID: 38597148 DOI: 10.1021/acsbiomaterials.4c00165] [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] [Indexed: 04/11/2024]
Abstract
Traditional Chinese medicine external prescriptions have displayed excellent clinical effects for treating deep soft tissue injuries. However, the effects cannot be fully utilized due to the limitations of their dosage forms and usage methods. It is still a challenge to develop a satisfactory adjuvant of traditional Chinese medicine external prescriptions. Herein, a hydrogel adjuvant was prepared based on gallic acid coupled ε-poly-l-lysine and partially oxidized hyaluronic acid. The resulting adjuvant shows great physicochemical properties, low hemolysis rate (still much less than 5% at 5 mg/mL), excellent antibacterial ability (about 95% at 2 mg/mL), strong antioxidant ability (1.687 ± 0.085 mmol FeSO4/(g hydrogel) at 1 mg/mL), as well as outstanding biocompatibility. A clinically used Chinese medicine external preparation was selected as an example to investigate the effectiveness of the adjuvant in treating deep soft tissue injuries. The results show that the prescription can be evenly dispersed in the adjuvant. Moreover, the introduction of the prescription has not significantly changed these advanced properties of the adjuvant. Importantly, the hydrogel adjuvant significantly improves the effectiveness of the prescription in treating deep soft tissue injuries. This work offers an alternative approach to the development of a new-type adjuvant of Chinese medicine external preparations and also provides a new strategy for the combination of traditional Chinese medicine and hydrogel to treat clinical diseases.
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Affiliation(s)
- Kai Wang
- The First Clinical Medical School of Anhui University of Chinese Medicine, Hefei 230038, Anhui, P. R. China
| | - Zuyan Xia
- The First Clinical Medical School of Anhui University of Chinese Medicine, Hefei 230038, Anhui, P. R. China
| | - Rui Yu
- School of Life Sciences, Anhui University of Chinese Medicine, Hefei 230012, Anhui, P. R. China
| | - Wendi Zhang
- College of Acumox and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui, P. R. China
| | - Zijian Wang
- School of Life Sciences, Anhui University of Chinese Medicine, Hefei 230012, Anhui, P. R. China
| | - Minshun Zhu
- The First Clinical Medical School of Anhui University of Chinese Medicine, Hefei 230038, Anhui, P. R. China
| | - Renzhong Li
- The First Clinical Medical School of Anhui University of Chinese Medicine, Hefei 230038, Anhui, P. R. China
| | - Zhimu Hu
- The First Clinical Medical School of Anhui University of Chinese Medicine, Hefei 230038, Anhui, P. R. China
| | - Zhaohui Chen
- College of Acumox and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui, P. R. China
| | - Kui Xu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, Anhui, P. R. China
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, Anhui, P. R. China
| | - Caiyun Mu
- College of Acumox and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui, P. R. China
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Pourshahrestani S, Zeimaran E, Fauzi MB. Antibacterial polylysine-containing hydrogels for hemostatic and wound healing applications: preparation methods, current advances and future perspectives. Biomater Sci 2024; 12:3293-3320. [PMID: 38747970 DOI: 10.1039/d3bm01792c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
The treatment of various types of wounds such as dermal wounds, multidrug resistant bacteria-infected wounds, and chronic diabetic wounds is one of the critical challenges facing healthcare systems. Delayed wound healing can impose a remarkable burden on patients and health care professionals. In this case, given their unique three-dimensional porous structure, biocompatibility, high hydrophilicity, capability to provide a moist environment while absorbing wound exudate, permeability to both gas and oxygen, and tunable mechanical properties, hydrogels with antibacterial function are one of the most promising candidates for wound healing applications. Polylysine is a cationic polymer with the advantages of inherent antibacterial properties, biodegradability, and biocompatibility. Therefore, its utilization to engineer antibacterial hydrogels for accelerating wound healing is of great interest. In this review, we initially discuss polylysine properties, and then focus on the most recent advances in polylysine-containing hydrogels (since 2016) prepared using various chemical and physical crosslinking methods for hemostasis and wound healing applications. Finally, the challenges and future directions in the engineering of these antibacterial hydrogels for wound healing are discussed.
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Affiliation(s)
- Sara Pourshahrestani
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia.
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Ehsan Zeimaran
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia.
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Liu Q, Wang C, Cheng M, Hu L, Zhang Z, Sun Q, Wang S, Fan Y, Pan P, Chen J. Self-Healing Conductive Hydrogels with Dynamic Dual Network Structure Accelerate Infected Wound Healing via Photothermal Antimicrobial and Regulating Inflammatory Response. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30776-30792. [PMID: 38848491 DOI: 10.1021/acsami.4c04113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
Wound infections are an escalating clinical challenge with continuous inflammatory response and the threat of drug-resistant bacteria. Herein, a series of self-healing conductive hydrogels were designed based on carboxymethyl chitosan/oxidized sodium alginate/polymerized gallic acid/Fe3+ (CMC/OSA/pGA/Fe3+, COGFe) for promoting infected wound healing. The Schiff base and catechol-Fe3+ chelation in the dynamical dual network structure of the hydrogels endowed dressings with good toughness, conductivity, adhesion, and self-healing properties, thus flexibly adapting to the deformation of skin wounds. In terms of ultraviolet (UV) resistance and scavenging of reactive oxygen species (ROS), the hydrogels significantly reduced oxidative stress at the wound site. Additionally, the hydrogels with photothermal therapy (PTT) achieved a 95% bactericidal rate in 5 min of near-infrared (NIR) light radiation by disrupting the bacterial cell membrane structure through elevated temperature. Meanwhile, the inherent antimicrobial properties of GA could reduce healthy tissue damage caused by excessive heat. The composite hydrogels could effectively promote the proliferation and migration of fibroblasts and possess good biocompatibility and hemostatic effect. In full-thickness infected wound repair experiments in rats, the COGFe5 hydrogel combined with NIR effectively killed bacteria, modulated macrophage polarization (M1 to M2 phenotype) to improve the immune microenvironment of the wound, and shortened the repair time by accelerating the expression of collagen deposition (TGF-β) and vascular factors (CD31). This combined therapy might provide a prospective strategy for infectious wound treatment.
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Affiliation(s)
- Qing Liu
- Marine College, Shandong University, Weihai 264209, China
| | - Chunxiao Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Meiqi Cheng
- Marine College, Shandong University, Weihai 264209, China
| | - Le Hu
- Marine College, Shandong University, Weihai 264209, China
| | - Ziyue Zhang
- Marine College, Shandong University, Weihai 264209, China
| | - Qisen Sun
- Marine College, Shandong University, Weihai 264209, China
| | - Shaoshen Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Yinuo Fan
- Marine College, Shandong University, Weihai 264209, China
| | - Panpan Pan
- Marine College, Shandong University, Weihai 264209, China
| | - Jingdi Chen
- Marine College, Shandong University, Weihai 264209, China
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Yang Y, Ma Y, Wu M, Wang X, Zhao Y, Zhong S, Gao Y, Cui X. Fe 3+-induced coordination cross-linking gallic acid-carboxymethyl cellulose self-healing hydrogel. Int J Biol Macromol 2024; 267:131626. [PMID: 38631590 DOI: 10.1016/j.ijbiomac.2024.131626] [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: 07/21/2023] [Revised: 04/01/2024] [Accepted: 04/13/2024] [Indexed: 04/19/2024]
Abstract
Self-healing hydrogel is a promising soft material for applications in wound dressings, drug delivery, tissue engineering, biomimetic electronic skin, and wearable electronic devices. However, it is a challenge to fabricate the self-healing hydrogels without external stimuli. Inspired by mussel, the metal-catechol complexes were introduced into the hydrogel systems to prepare the mussel-inspired hydrogels by regulating the gelation kinetics of Fe3+ crosslinkers with gallic acid (GA) in this research. The amine-functionalized carboxymethyl cellulose (CMC) was grafted with GA and then chelated with Fe3+ to form a multi-response system. The crosslinking of carboxymethyl cellulose-ethylenediamine-gallic acid (CEG) hydrogel was controlled by adjusting the pH to affect the iron coordination chemistry, which could enhance the self-healing properties and mechanical strength of hydrogels. In addition, the CEG hydrogel exhibited great antibacterial and antioxidant properties. And the CEG hydrogel could strongly adhere to the skin tissue. The adhesion strength of CEG hydrogel on pigskin was 11.44 kPa, which is higher than that of commercial wound dressings (∼5 kPa). Moreover, the thixotropy of the CEG hydrogel was confirmed with rheological test. In summary, it has great potential in the application field of wound dressing.
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Affiliation(s)
- Yongyan Yang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Ying Ma
- College of Veterinary Medicine, Jilin University, Changchun 130012, PR China
| | - Meiliang Wu
- Department of Ophthalmology, Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xueping Wang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Yuan Zhao
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Shuangling Zhong
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, PR China
| | - Yan Gao
- College of Chemistry, Jilin University, Changchun 130012, PR China; State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China; Weihai Institute for Bionics-Jilin University, Weihai 264400, PR China
| | - Xuejun Cui
- College of Chemistry, Jilin University, Changchun 130012, PR China; Weihai Institute for Bionics-Jilin University, Weihai 264400, PR China.
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Omidian H, Wilson RL, Gill EJ. Advancements and Challenges in Self-Healing Hydrogels for Wound Care. Gels 2024; 10:241. [PMID: 38667660 PMCID: PMC11048759 DOI: 10.3390/gels10040241] [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: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
This manuscript explores self-healing hydrogels as innovative solutions for diverse wound management challenges. Addressing antibiotic resistance and tailored wound care, these hydrogels exhibit promising outcomes, including accelerated wound closure and tissue regeneration. Advancements in multifunctional hydrogels with controlled drug release, antimicrobial properties, and real-time wound assessment capabilities signal a significant leap toward patient-centered treatments. However, challenges such as scalability, long-term safety evaluation, and variability in clinical outcomes persist. Future directions emphasize personalized medicine, manufacturing innovation, rigorous evaluation through clinical trials, and interdisciplinary collaboration. This manuscript features the ongoing pursuit of effective, adaptable, and comprehensive wound care solutions to transform medical treatments and improve patient outcomes.
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Affiliation(s)
- Hossein Omidian
- Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; (R.L.W.); (E.J.G.)
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Weian W, Yunxin Y, Ziyan W, Qianzhou J, Lvhua G. Gallic acid: design of a pyrogallol-containing hydrogel and its biomedical applications. Biomater Sci 2024; 12:1405-1424. [PMID: 38372381 DOI: 10.1039/d3bm01925j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Polyphenol hydrogels have garnered widespread attention due to their excellent adhesion, antioxidant, and antibacterial properties. Gallic acid (GA) is a typical derivative of pyrogallol that is used as a hydrogel crosslinker or bioactive additive and can be used to make multifunctional hydrogels with properties superior to those of widely studied catechol hydrogels. Furthermore, compared to polymeric tannic acid, gallic acid is more suitable for chemical modification, thus broadening its range of applications. This review focuses on multifunctional hydrogels containing GA, aiming to inspire researchers in future biomaterial design. We first revealed the interaction mechanisms between GA molecules and between GA and polymers, analyzed the characteristics GA imparts to hydrogels and compared GA hydrogels with hydrogels containing catechol. Subsequently, in this paper, various methods of integrating GA into hydrogels and the applications of GA in biomedicine are discussed, finally assessing the current limitations and future development potential of GA. In summary, GA, a natural small molecule polyphenol with excellent functionality and diverse interaction modes, has great potential in the field of biomedical hydrogels.
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Affiliation(s)
- Wu Weian
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, China.
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, China
| | - Ye Yunxin
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, China.
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, China
| | - Wang Ziyan
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, China.
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, China
| | - Jiang Qianzhou
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, China.
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, China
| | - Guo Lvhua
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, China.
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, China
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Qu H, Yao Q, Chen T, Wu H, Liu Y, Wang C, Dong A. Current status of development and biomedical applications of peptide-based antimicrobial hydrogels. Adv Colloid Interface Sci 2024; 325:103099. [PMID: 38330883 DOI: 10.1016/j.cis.2024.103099] [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: 10/19/2023] [Revised: 01/24/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
Microbial contamination poses a serious threat to human life and health. Through the intersection of material science and modern medicine, advanced bionic hydrogels have shown great potential for biomedical applications due to their unique bioactivity and ability to mimic the extracellular matrix environment. In particular, as a promising antimicrobial material, the synthesis and practical biomedical applications of peptide-based antimicrobial hydrogels have drawn increasing research interest. The synergistic effect of peptides and hydrogels facilitate the controlled release of antimicrobial agents and mitigation of their biotoxicity while achieving antimicrobial effects and protecting the active agents from degradation. This review reports on the progress and trends of researches in the last five years and provides a brief outlook, aiming to provide theoretical background on peptide-based antimicrobial hydrogels and make suggestions for future related work.
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Affiliation(s)
- Huihui Qu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Quanfu Yao
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, People's Republic of China; College of Chemistry and Environment, Hohhot Minzu College, Hohhot 010051, People's Republic of China
| | - Ting Chen
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Haixia Wu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China.
| | - Ying Liu
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, People's Republic of China.
| | - Cong Wang
- Center of Experimental Instrument, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China.
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China.
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Chitosan-Based Hemostatic Hydrogels: The Concept, Mechanism, Application, and Prospects. Molecules 2023; 28:molecules28031473. [PMID: 36771141 PMCID: PMC9921727 DOI: 10.3390/molecules28031473] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/19/2023] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
The design of new hemostatic materials to mitigate uncontrolled bleeding in emergencies is challenging. Chitosan-based hemostatic hydrogels have frequently been used for hemostasis due to their unique biocompatibility, tunable mechanical properties, injectability, and ease of handling. Moreover, chitosan (CS) absorbs red blood cells and activates platelets to promote hemostasis. Benefiting from these desired properties, the hemostatic application of CS hydrogels is attracting ever-increasing research attention. This paper reviews the recent research progress of CS-based hemostatic hydrogels and their advantageous characteristics compared to traditional hemostatic materials. The effects of the hemostatic mechanism, effects of deacetylation degree, relative molecular mass, and chemical modification on the hemostatic performance of CS hydrogels are summarized. Meanwhile, some typical applications of CS hydrogels are introduced to provide references for the preparation of efficient hemostatic hydrogels. Finally, the future perspectives of CS-based hemostatic hydrogels are presented.
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