Development of Degradable Fibers with Hemostatic Properties

项目总结 止血材料领域的最新进展集中在开发高止血产品上 效率。理想的止血材料应能迅速控制出血，表现出生物相容性和 可降解性，促进伤口愈合，重量轻，价格便宜。电纺可降解材料 胶原蛋白、壳聚糖、聚己内酯等大分子可产生纳米纤维，在伤口中显示出良好的前景 治疗和止血应用。现代止血治疗应该具有可降解性和 再生能力，但很少有研究发表关于利用合成类似物来 生物分子。该项目的长期目标是更好地理解基于聚合物的 止血伤口愈合材料及对这些材料的细胞反应 再生治疗。 作为实现这一目标的一步，必须合成可降解的胶原链类似物，电纺和 并与其他支架进行了体外和体内评价。据推测，一种仿生合成的 聚合物可电纺成价格实惠、生物相容、可降解、止血的创面敷料材料 这不仅会催化凝血，而且不需要手术切除。 这项提议意义重大，因为它代表着首次尝试将以聚酯为基础的 将胶原蛋白模拟成电纺支架，能够控制支架成分以结合所需 用于伤口愈合和止血应用的理想材料的性能和功能。这种方法 是创新的，因为它将决定在这样的应用中使用合成胶原蛋白模拟物的可行性 作为电纺伤口愈合止血材料。预计类胶原蛋白 新型聚酯上的官能团与纤维中壳聚糖的存在将导致 在具有适当降解率的伤口模型中止血。此外，本科生将 进行这项提案中的大部分研究。这将是一次重要的研究经验 并将为他们提供宝贵的实验室和研究技能，这些技能将在他们的 事业。

PROJECT SUMMARY Recent evolutions in the field of hemostatic materials have focused on developing products with high hemostatic efficiency. An ideal hemostatic material should quickly control hemorrhaging, exhibit biocompatibility and degradability, promote wound healing and be lightweight and inexpensive. Electrospinning degradable macromolecules like collagen, chitosan, polycaprolactone yields nanofiber which have shown promise in wound healing and bleeding cessation applications. Modern bleeding cessation treatments should have degradable and regenerative capabilities but little research has been published on the utilization of synthetic analogs to costly biomolecules. The long-term goal of this project is to generate a better understanding of polymer-based hemostatic wound healing materials and cellular responses towards these materials for implementation in regenerative treatments. As a step towards this goal, a degradable collagen strand analog must be synthesized, electrospun, and compared to other scaffolds for in vitro and in vivo evaluation. It is hypothesized that a biomimetic synthetic polymer can be electrospun into an affordable, biocompatible, degradable, hemostatic wound dressing material that will not only catalyze coagulation but also will not require surgical removal. This proposal is significant because it represents the first attempt to incorporate a polyester-based collagen mimic into electrospun scaffolds with the ability to control scaffold composition to combine desired properties and functionalities in an ideal material for wound healing and hemostatic applications. This approach is innovative because it will determine the feasibility of utilizing a synthetic collagen mimic in applications such as electrospun wound healing and bleeding cessation materials. It is anticipated that the collagen-like functional groups on the novel polyester coupled with the presence of chitosan in the fibers will lead to bleeding cessation in wound models with suitable degradation rates. Furthermore, undergraduate students will conduct the majority of the research in this proposal. This will be a significant research experience for these students and will provide them with valuable laboratory and research skills that will be essential in their careers.