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Manufacturing Technology Insights | Tuesday, January 31, 2023
The mechanical properties of the advanced biomaterials, the use of biotechnology to engineer the proteins, and specific biomedical applications of these protein-based advanced biomaterials provide the healthcare industries with emerging solutions to effective patient care.
FREMONT, CA: There are several main goals of sustained drug delivery, including delivering the drug within the therapeutically desired range, maintaining the constant drug concentration without peaks and valleys, and extending the intervals between doses for chronic medications. In addition to reducing or eliminating unwanted side effects, low toxic thresholds, improved convenience for patients, and a more cost-effective approach, it also offers improved benefits. The controlled degradation and release of drugs after accumulation at a specific site is the most important property of regenerative medicine and drug delivery systems. Physiological signals, such as pH, temperature, and ionic strength, can trigger the release of the encapsulated drugs.
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Researchers and developers can benefit from the emerging applications of advanced materials by integrating the following solutions in patient care.
Gene delivery and gene therapy: Many diseases can be treated with gene therapy, namely cancer, AIDS, and cardiovascular diseases. In treating various diseases, naked DNA or viral vectors can deliver therapeutic genes to target cells in the patient. Advancing gene delivery systems need to be small enough to pass into cells, to pass into the nuclei, to bypass endosome-lysosome processing, and finally to be protected until they reach the target site. Various approaches have been developed to improve gene delivery's safety and efficacy, including targeting it to specific tissues, protecting DNA from degradation, and controlling the release profile.
Tissue regeneration and tissue engineering: A significant limitation of organ transplantation is the lack of donor organs and the increase in morbidity. Additionally, it is difficult to mimic the physiological microenvironment of the in vivo environment for cellular regeneration in a laboratory. It is crucial to ensure good communication between the host and implanted system if a human body part is to be replaced with a material. An important goal of tissue engineering is to regenerate tissue within a scaffold that can be implanted at a target site after the tissue has been constructed. A key approach to treating tissue or organ failure is using cells, scaffolds, and appropriate growth factors. In 3D tissue engineering, advanced biomaterials scaffolds act as architectural templates and provide a suitable microenvironment. A unique combination of elasticity and strength, along with mammalian cell compatibility, makes silk protein fibroin an attractive advanced biomaterial for tissue engineering, allowing its use as a scaffolding material to develop advanced biomedical devices.
Wounds and burns dressing: Biopolymers such as polysaccharides and fibrous proteins can be used widely for wound dressings and burns since they are biocompatible, biodegradable, and similar to the extracellular matrix (ECM), providing a microenvironment conducive to cell proliferation, migration, and differentiation, speeding up wound healing. These biopolymer wounds and burn dressings maintain sufficient moisture and oxygen at the wound level, prevent and keep the wound free from microbes, and improve wound healing.
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