Abstract
Hybrid aerogels comprising bioderived polymers and metal oxides have been explored in the case of chitosan and silica. The physical properties of homogeneous aerogels have been explored extensively and structural models have been formulated on the basis of the data. One attractive feature of these materials is that the chemically functional groups on chitosan can be employed to develop transparent transition- and lanthanide-containing monolithic aerogels. The functionality and chemical properties also enable formation of aerogels with a range of magnetic properties, with gold and other nanoparticles, and with attached polymeric structures. The structure and chemistry make it possible to explore diffusion control of reactions and physico-chemical control of nanoparticle growth. Some biocompatibility data are described.
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Yao, C.J., Liu, X., Risen, W.M. (2011). Biopolymer-Containing Aerogels: Chitosan-Silica Hybrid Aerogels. In: Aegerter, M., Leventis, N., Koebel, M. (eds) Aerogels Handbook. Advances in Sol-Gel Derived Materials and Technologies. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-7589-8_18
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