Biopolymers of the future
One of the most spectacular breakthroughs in the field of smart materials has been achieved in the area of biopolymer chemistry. These biomaterials have many applications in the fields of biotechnology and medicine.
Silk, collagen, cellulose, elastin, are natural biomaterials that have been known for a long time. Recently, it has been realized that synthetic biomaterials can be used to treat or replace certain tissues, organs, or body functions. For example, certain polymer capsules implanted in the body allow the passage of molecules capable of permanently treating body ailments. Other biomaterials can be used as prostheses or heart valves.
Several laboratories use collagen, cellulose or even coral as a matrix from which natural cells, by dividing, reconstitute a damaged or missing part of an organ. For example, noses have been reconstructed by growing skin cells on such matrices, constituting a biodegradable scaffold.
Advances in chemistry, biotechnology and nanotechnology are opening up new avenues for the materials of the future. The era of smart innovation for the future has only just begun.
DNA, proteins and polysaccharides are intelligent biological materials. They are able to conduct energy at a distance, to react to environmental stimuli, to change shape, to recognize other molecules, to catalyze the fabrication of supramolecular structures. One of the goals of researchers in the field of smart materials is to be able to manufacture DNA biocomputers and mass memories using photosensitive proteins.