초록 |
Drug delivery systems are interested in the controlled release of drugs. In some cases, there is a desire to monitor the status of the drug release in vivo. When the DBR reflectance peak can be tuned at wavelengths corresponding to a region of relatively low absorption in human tissue, such measurements could be possible in vivo. Here, we examine the distributed Bragg reflector (DBR) porous silicon/PMMA composite materials for the controlled release drug delivery application. The free–standing DBR PSi has been treated with the mixture solution of caffeine and PMMA to produce flexible and stable composite materials in which the porous silicon matrix is covered with caffeine–impregmated PMMA. |