Hydrogels with novel antimicrobial properties and accelerated wound healing are of great interest in the field of wound dressings because they not only prevent bacterial infections but also fulfill the essential needs of wound healing. In this study, multifunctional hydrogel dressings consisting of black phosphorus nanosheets(BPNS) surface-modified Zinc oxide (BP@ZnO heterojunction) based on gelatin (Gel), sodium alginate (SA), glutamine transferase (mTG), and calcium ions with a three-dimensional crosslinked network were prepared. The BP@ZnO-Gel/SA hydrogel has excellent mechanical properties, hemocompatibility (hemolysis rate: 3.29 %), swelling rate(832.8 ± 19.2 %), cytocompatibility, photothermal and photodynamic antibacterial properties(Sterilization rate: 96.4 ± 3.3 %). In addition, the hydrogel accelerates wound healing by promoting cell migration, immune regulation and angiogenesis. Thus, this hydrogel achieves the triple effect of antimicrobial, immunomodulation and angiogenesis, and is a tissue engineering strategy with great potential.
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http://dx.doi.org/10.1016/j.ijbiomac.2024.133456 | DOI Listing |
Colloids Surf B Biointerfaces
December 2024
Department of Plastic and Cosmetic Surgery, The Second Affiliated Hospital of Army Medical University, Chongqing 400038, China. Electronic address:
The chronic diabetic wounds represented by diabetes foot ulcers (DFUs) are a worldwide challenge. Excessive production of reactive oxygen species (ROS) and persistent inflammation caused by the impaired phenotype switch of macrophages from M1 to M2 during wound healing are the main culprits of non-healing diabetic wounds. Therefore, an injectable DMM/GelMA hydrogel as a promising wound dressing was designed to regulate the mitochondrial metabolism of macrophages via inhibiting succinate dehydrogenase (SDH) activity and to promote macrophage repolarization towards M2 type.
View Article and Find Full Text PDFAfr J Reprod Health
December 2024
Department of Cardiology, The First Affiliated Hospital,Hengyang Medical School, University of South China.
Anaemia is a common phenomenon in patients with malignant gynecological tumors. The occurrence of anaemia in the perioperative period leads to an increased probability of blood transfusion, increased surgical complications,poor wound healing, prolonged hospitalization, increased medical costs, and increased mortality. Intravenous iron, which is known for its rapid onset and lack of gastrointestinal side effects, has become increasingly prevalent in clinical practice.
View Article and Find Full Text PDFJ Eval Clin Pract
February 2025
Ordos Hospital of Traditional Chinese Medicine, Ordos City, China.
Background: To investigate the effect of Midnight-noon Ebb-flow combined with five-element music therapy in the continuous nursing of patients with chronic wounds.
Methods: From March 2022 to November 2023, we recruited 50 eligible chronic wound patients and randomly divided them into two groups according to a random number table: the experimental group (n = 25) and the control group (n = 25). The control group was treated with conventional nursing measures.
Macromol Biosci
January 2025
Universidade Estadual de Campinas (UNICAMP), School of Chemical Engineering (FEQ), Albert Einstein Avenue, 500, Campinas, São Paulo, 13083-852, Brazil.
Annually, thousands of individuals suffer from skin injuries resulting from trauma, surgeries, or diabetes. Inadequate wound treatment can delay healing and increase the risk of severe infections. In this context, a promising synthetic polymer with potent antimicrobial properties, Poly{2-[(methacryloyloxy)ethyl]trimethylammonium chloride} (PMETAC), is synthesized and crosslinked with N,N'-Methylenebis(acrylamide) (BIS) in the presence of Chitosan (CH), a natural, biocompatible polysaccharide that promotes cell regeneration and provides additional beneficial properties.
View Article and Find Full Text PDFJ Cosmet Dermatol
January 2025
Clinical Research Center of the Carolinas, Charleston, South Carolina, USA.
Background: Exosomes are nanoscale vesicles derived from various cell types and tissues that have many potential applications, generating great interest from researchers. One particularly intriguing application of exosomes is their use as a direct therapeutic for aesthetic indications. Several studies and case reports have explored the impact of exosomes for numerous cosmetic concerns but a consensus on the outcomes of these studies has not been established.
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