Drug Delivery Materials
Not only would a network of nanofibers (or nanoparticles) provide a stable 3D scaffold on which cells would attach, they could also be used to encapsulate a drug which would favor the proliferation and avoid de-differentiation of the given cells (ie: chondrocytes). A whole variety of drugs could theoretically be integrated ranging from growth factors to bioactive small molecules.
With a well-thought polymer blend and a suitable drug cocktail, a custom drug-release profile could be created for various tissue engineering applications. For example in the case of cartilage, a multistep drug-release profile is an attractive prospective. A first drug would be released in the days following the implantation and a slower, more sustained release of a second drug lasting several weeks/months.