Several areas of medical care are already benefiting from the advantages of nanotechnology. One of them is drug delivery, which is one of the key priorities in nanomedicine research along with diagnostics and regenerative medicine.
Drug delivery is being approached by nanomedicine by developing nanoscale particles or molecules to improve the bioavailability of a drug. Bioavailability of a drug is the presence of drug particles/molecules there where they are needed in the body and where they will do their best. The main focus of drug delivery is increasing the bioavailability to the maximum both at certain places in the body and over a period of time. This can be achieved by nanotechnology-based devices. Estimated 65 billion dollars per year are being wasted because of the poor bioavailability.
Drug delivery systems (nanoparticles) can be designed to improve the threapeutic and pharmaceutical properties of a drug. Nanoparticles have those unusual properties that significantly improve the drug delivery. Nanoparticles are small in size, so the cells accept them unlike other elements which are much bigger and they’re being rejected.
Drug delivery mechanisms are constantly being developed, including the ability to transfer drugs through cell membranes into the cytoplasm. This is important because many diseases can only be impeded by drugs that make it through the membrane. It’s simple, but the same can be applied to green stool or black poop.
Drug molecules can be used more efficiently by triggered response. Molecules are placed in the patient’s body and they activate themselves only when encountering a particular signal.