New Silica-Coatings incl. Photopigments

Invention
Entrapping sensitive material, e.g. immobilization of biomolecules or immobilization of
other light-, pH- and/or temperature sensitive material is a demanding task in the art.
That is, immobilization of biomolecules within polymer matrices has gained
considerable importance in various fields of
biotechnical processes.
For example photosynthetically active
components which can absorb light and
transfer energy, may be immobilized
(entrapped) within suitable immobilization
compounds, like polymer matrices for
biotechnical processes.
However, photosynthetically active
components are extremely unstable and need
to be stabilised outside of the cell, in order to
use these highly effective components e.g. in
third generation photovoltaics and artificial
photosynthesis, respectively.

However, photosynthetically active
components are extremely unstable and need
to be stabilised outside of the cell, in order to
use these highly effective components e.g. in
third generation photovoltaics and artificial
photosynthesis, respectively.
The immobilized sensitive material includes
active components, like the mentioned
photosynthetically active components, but
also optically and electrochemically active
material.
Beside encapsulation of whole cells, cell
compartments or cell organelles as well as
biological macromolecules including proteins,
enzymes or other sensitive materials have
been entrapped or encapsulated.
In addition, systems have been described wherein the sensitive materials have been
encapsulated in biopolymers first and said encapsulated sensitive materials are
coated with e.g. silica allowing to associate soft biocompatible components, like
alginate, with a tough thermostable non-swelling component like silica. The present
invention describes new transparent silica-based gel and “glass” with entrapped
sensitive material which is in particular light-, pH- and/or temperature- sensitive and
furthermore a method of its preparation.

Commercial Opportunities
On behalf of the University of Applied Sciences ………. ……… is offering
access for commercial use in terms of a license as well as research collaboration to
innovative companies.
Current Status
A European patent application has been filed so far.

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