What polymers are used in pharmaceuticals?
The most common carriers for polymer therapeutics are HPMA (polymer-drug) and PEG (polymer-protein), but other systems studied include poly(glutamic acid), PEI, dextran, dextrin, chitosans, poly(l-lysine), and poly(aspartamides) as polymeric carriers (92).
What are commonly used polymers?
The eight most common types of synthetic organic polymers, which are commonly found in households are:
- Low-density polyethylene (LDPE)
- High-density polyethylene (HDPE)
- Polypropylene (PP)
- Polyvinyl chloride (PVC)
- Polystyrene (PS)
- Nylon, nylon 6, nylon 6,6.
- Teflon (Polytetrafluoroethylene)
- Thermoplastic polyurethanes (TPU)
Why polymers are used in pharmaceutical industry?
In recent years, polymers have been used to develop devices for controlling drug deliv- ery or for replacing failing natural organs. In oral delivery, polymers are used as coatings, binders, taste maskers, pro- tective agents, drug carriers, and release controlling agents.
What are bioactive polymers?
Bioactive polymers are macromolecules that can exhibit biological activity in use areas such as medication, weed control, insect control, etc. Natural bioactive polymers are essential to life and include the proteins, nucleic acids and poly- saccharides.
What are the uses for polymers in medicine industry and society?
Other applications—dental implants, cochlear implants, tissue screws and tacks, burn and wound dressings and artificial skin, tissue adhesives and sealants, drug-delivery systems, matrices for cell encapsulation and tissue engineering, and sutures.
What is the most common polymer?
Polyethylene
Polyethylene is the most commonly produced plastic polymer (Table 1) and this is reflected in what is typically found in the environment. For example, barnacles collected from the North Pacific were found to contain 58 % polyethylene, 5 % polypropylene, and 1 % polystyrene microparticles 49 . …
Is silicone a polymer?
A silicone or polysiloxane is a polymer made up of siloxane (−R2Si−O−SiR2−, where R = organic group). They are typically colorless oils or rubber-like substances. Silicones are used in sealants, adhesives, lubricants, medicine, cooking utensils, thermal insulation, and electrical insulation.
What makes a polymer biodegradable?
Natural polymers are available in large quantities from renewable sources, while synthetic polymers are produced from non renewable petroleum resources. Biodegradation takes place through the action of enzymes and/or chemical deterioration associated with living organisms.
Which polymers are used in pharmaceuticals?
Pharmaceutical polymers include vinyl polymers, cellulose ethers, polyesters, silicones, polysaccharides and other biopolymers. Vaibhav Sihorkar, Thomas Dürig, in Drug Delivery Aspects, 2020
What were the best-performing Pharma stocks of 2018?
The 80% growth registered in the sale of its key cancer drug Keytruda, according to Barrons, helped Merck take the number two spot in the coveted list of best-performing pharma stocks of 2018.
What is the most common biopolymer used in rubber?
The rubber polymers most commonly used are natural, neoprene, and butyl rubber. Butyl rubbers for the manufacturing of closures. release dosage forms. Cellulose is the most abundant naturally occurring biopolymer.
Can pharmaceutical polymers be used for controlled drug delivery?
The review focuses on the use of pharmaceutical polymer for controlled drug delivery applications. Examples of pharmaceutical polymers and the principles of controlled drug delivery are outlined and applications of polymers for controlled drug delivery are described.