3.4.1 Clinical development direction of biomedical...
Biomedical polymers have developed into one of the important materials indispensables in the field of modern biomedicine.In the past decades，the research and clinical application of biomedical polymer materials have undergone a leap-forward transformation and development from biologically inert materials to biodegradable active materials，smart materials，and electronic information materials.The application of biomedical polymers in the fields of skin cosmetology and the diagnosis and treatment of skin diseases involves various fields such as bioimaging，nanodrug delivery system，transdermal drug delivery technology，immunotherapy，skin repair and regeneration，wearable skin devices and electronic skin，and has obtained remarkable results.Yet，so far，the types of materials involved in biomedical polymers are few，and they cannot adapt to or meet the complex functions of various organs of humans.The ideal goal of curing diseases through biomedical polymer materials is still far away，and in-depth research and exploration are urgently needed.Therefore，expanding the structure and composition of polymers，designing and synthesizing new polymer materials，and expanding new applicable fields are the future development directions.
In the medication fields of many chronic diseases and intractable diseases，natural medicines such as traditional Chinese medicines can give full play to their multi-target therapeutic effects.In addition，through modern technologies that have the systematic screening of natural substances，the effective components of drugs extracted from traditional Chinese medicines（e.g.，camptothecin，paclitaxel）have been widely used in clinical chemotherapy for tumors.The promising modernization of traditional Chinese medicines and the natural polymers extracted from it will receive more and more attention in the industries of the skin beauty and the diagnosis and treatment of skin diseases，and will also be the future development directions.
In addition，in order to meet the needs of more extensive，smarter and more personalized clinical applications of biomedical polymer materials，while adapting and satisfying the complex functions of skin organs，the application of biomedical polymer materials in the skin field is also more diverse.The development of composite functional materials suitable for the special needs of skin beauty and dermatological diagnosis and treatment fields，timing，positioning，and quantitative precise smart drug formulations，the excellent properties of biomedical polymer materials are used.The construction of smart medical materials is another development direction for biomedical polymer materials in the future.(https://www.daowen.com)
In China，the basic polymer research is at the forefront of the world，but the research and application of biomedical polymers in the field of skin beauty and the diagnosis and treatment of skin diseases started decades later than western countries.Therefore，there are not enough varieties，incomplete specifications，and unstable quality that are currently being developed，resulting in a big gap of R & D and production capabilities between China and the international levels.High-end biomedical polymer materials and products are largely dependent on imports.Professional biomedical polymer companies have problems such as small scale，few varieties，low R & D investment，and relatively low technical level.However，in recent years，the development of biomedical materials in China has been changing rapidly.It has demonstrated vigorous vitality and good development prospects，and has a number of international cutting-edge products，such as implantable biochips，tissueinducing bone and cartilage，and tissue engineering products.Therefore，it has become a general trend that imported biomedical polymer material products are replaced by localization，which is another important direction for the development of biomedical polymer materials in the future.At the same time，with the improvement of people's living standards，the upgrading of medical consumption，and the continuous upgrading of medical products，the brand effect of biomedical polymer products will continue to improve and play an important role.