What polymers are used for drug delivery?
Table of Contents
What polymers are used for drug delivery?
Among the synthetic and biodegradable polymers, aliphatic polyesters such as poly (glycolic acid), poly (lactic acid), poly (caprolactone) and polydioxanone, are most commonly used and applied to drug delivery systems.
What is amphiphilic polymer?
Amphiphilic polymers are macromolecules that simultaneously contain hydrophobic and hydrophilic components. These molecules not only attract much attention in academic research but also are important materials in industry.
What are pharmaceutical polymers?
Pharmaceutical Polymers are the heart of Pharmaceutical formulations either in conventional and novel drug delivery system. The drug release is sustaining, extending, modifying, controlling and targeting based on the use of polymer in different dosage forms and drug delivery system.
Why are polymers used as biomaterials?
Polymers have been used for designing biomaterials mainly because of their chemical structure flexibility, biocompatibility, biodegradability, and can be functionalized with desired biomolecules [1,2]. Polymeric biomaterials are categorized on the basis of their origin such as natural or synthetic [3].
What is biomedical polymers?
Biomedical polymers are a special class of materials that are designed to work in harmony with the body, and for the basis of a growing number of artificial organs and replacement parts intended for fitting into the human body.
What do amphiphiles do?
Biological role Phospholipids, a class of amphiphilic molecules, are the main components of biological membranes. The amphiphilic nature of these molecules defines the way in which they form membranes. They arrange themselves into lipid bilayers, by forming a sheet composed of two layers of lipids.
Why polymers are used in biomedical devices?
Polymeric materials are used because of the ease of fabrication, flexibility, and their biocompatible nature as well as their wide range of mechanical, electrical, chemical, and thermal behaviors when combined with different materials as composites.
What are the types of biomedical polymers?
Natural polymers such as collagen, gelatin, hyaluronic acid, silk fibroin, chitosan, alginate, and PHBV are now frequently used for different biomedical devices because of their excellent biocompatibility.
What are amphiphiles in physical pharmaceutics?
Amphiphiles are molecules containing a nonpolar hydrophobic region and a polar hydrophilic region will self-assemble in aqueous solution to form distinct structures such as micelles, vesicles and tubules.
What is an amphipathic substance?
Amphipathic molecules are chemical compounds that have both polar and nonpolar regions, giving them both hydrophilic (water-loving) and lipophilic (fat-loving) properties. Amphipathic molecules are also known as amphiphilic molecules or amphiphiles.
