由铜纳米颗粒赋能的双聚糖化水凝具有协同抗菌性能,用于表皮伤口治疗
Tingrui Yuan1, Shi Lan1, Jing Yan1
1College of Science, Inner Mongolia Agricultural University, Hohhot, 010018, China.
International journal of biological macromolecules
|January 25, 2026
概括
这项研究开发了一种新型的双多糖化水凝与铜纳米颗粒用于增强抗菌性能. 水凝有效地对抗细菌感染,促进伤口愈合,为现有治疗提供了一个有希望的替代方案.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 传染病治疗方法 传染病治疗方法
背景情况:
- 抗菌水凝对于治疗受感染的皮肤缺陷至关重要.
- 现有的水凝通常具有单一的抗菌机制,导致细菌耐药性.
- 开发具有协同抗菌特性的新型水凝是必不可少的.
研究的目的:
- 为了创建一个双多糖含铜纳米粒子 (SG/SA-Cu NPs水凝) 的双多糖.
- 为了研究新型水凝的协同抗菌机制.
- 为了评估水凝作为感染皮肤缺陷的伤口包裹的有效性.
主要方法:
- 通过协调相互作用和现场化学降解合成 SG/SA-Cu NPs 水凝.
- 研究了对大肠杆菌和金黄色葡萄球菌的协同抗菌活性.
- 评估了铜离子的控制释放,反应性氧物种的产生和光热转换效率.
- 在全厚皮肤缺陷模型中评估水凝性能.
主要成果:
- 该SG/SA-Cu NPs水凝显示出对大肠杆菌和金黄色杆菌的协同抗菌活性.
- 水凝促进了对铜离子的控制释放,增强了反应性氧物种 (ROS) 的产生,并在NIR照射下表现出高效的光热转化.
- 在体内研究表明,在全厚缺陷模型中,水凝有效抵抗细菌感染,并促进伤口愈合.
结论:
- 开发的双聚糖合物水凝与铜纳米颗粒提供了一个新的协同抗菌策略.
- 这种水凝显示出作为感染皮肤缺陷的先进伤口带的巨大潜力.
- 这些发现为设计基于多糖的创新水凝敷料提供了一种新方法.
更多相关视频
06:42Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance
Published on: September 27, 2024
2.7K
07:40Production of Metal Nanoparticles by Pulsed Laser-ablation in Liquids: A Tool for Studying the Antibacterial Properties of Nanoparticles
Published on: June 2, 2017
15.7K
相关概念视频
01:26Biosynthesis of Polysaccharides
594
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
594
01:15Cellulose and Pectic Polysaccharides
4.7K
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...
As a cell matures, its cell wall specializes according to its type. For example, the...
4.7K
00:59Gene Therapy
27.4K
Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
27.4K
01:12Renewal of Skin Epidermal Stem Cells
3.0K
The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
3.0K
01:19Clinical Applications of Epidermal Stem Cells
3.3K
Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
3.3K
01:26Group Therapy
410
Group therapy is a sociocultural approach to psychological treatment, where individuals with shared psychological challenges come together under the guidance of a mental health professional. This therapeutic modality offers unique opportunities for individuals to connect, share, and grow within the context of a supportive group. By fostering mutual understanding and collaboration, group therapy can address a range of psychological concerns effectively, often complementing or surpassing the...
410