The clinical trials of absorbable medical suture made of degradable polyester PGLA in plastic surgery and general surgery of Shanghai First People's Hospital show that the suture can be untied after two weeks of implantation and completely absorbed after three months, which is faster than the degradation speed of catgut, and can also accelerate wound healing, greatly reducing the pain and related consumption of patients in the second operation.
2. New materials for photothermal diagnosis and treatment: making minimally invasive treatment of cancer possible.
A series of polymer-coated copper sulfide and tungsten oxide-based photothermal conversion materials. They have excellent biocompatibility and near infrared thermal conversion performance. At present, this series of materials has been successfully applied to the experiment of mouse cancer cell ablation diagnosis and treatment, showing good application value in the field of photothermal diagnosis and treatment, and is expected to bring good news to cancer patients soon.
3. Tissue engineering scaffold: science fiction plot can become a reality.
Silk fibroin extracted from silkworm cocoon is used as raw material, from single fiber to nonwoven fiber felt, from disordered spinning to orderly spinning, and then to the comprehensive application of various post-treatment methods. By effectively adjusting the coagulation structure of silk fibroin, silk fibroin scaffolds with significantly improved mechanical properties were successfully prepared.
Good animal experimental results have been obtained, and it is expected to be applied to human body in the future. Compared with raw materials, the preparation process of this new material is green and environmentally friendly, which can effectively release cell growth factors and promote the construction and repair of long urethra.
Extended data:
The market prospect of basic materials industry is broad;
Both industry and agriculture need materials, and new materials are the foundation and pillar industries. The breakthrough of materials will probably trigger a new industrial revolution.
New materials are the premise of the revitalization and development of many industries, and the production process of any industry needs materials as support. With the progress of science and technology and the rapid development of emerging industries, the demand for the types and quantities of new materials has also increased greatly, and the market prospect of new materials is very promising.
Taking carbon materials as an example, since the beginning of the new century, carbon materials have become the first choice for large-scale development and application in the world. Traditional carbon materials are synthetic diamond and high-temperature resistant graphite, while the most striking new carbon materials in the new century are carbon fiber composites and graphene materials.
Carbon fiber has many excellent properties, such as high strength, high modulus, low specific gravity, high temperature resistance, fatigue resistance, light guide and easy processing. It is gradually replacing traditional materials, widely used in aerospace and military fields, and has begun to penetrate into all aspects of the national economy and people's livelihood.
People's Network-Polymer makes life healthier.
People's Network-New Material Industry: The prospect of realizing leap-forward development can be expected.