FREEMAN, WILLIAM R.,SAILOR, MICHAEL J.,CHENG, LINGYUN
申请号：
CA2696139
公开号：
CA2696139C
申请日:
2008.07.09
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
This invention relates to devices, systems and methods for deliveringpreprogrammed quantities of an active ingredient to a biological system overtime without the need for external power or electronics. In particular, theinvention provides compositions and devices comprising: a silicon dioxidematerial obtained by heating porous silicon at a temperature above400°C inan oxidizing environment comprising a plurality of pores； and a drug or anactive ingredient within the pores. Also provided are pharmaceuticalcompositions comprising the compositions, uses thereof for treatment of adisease or disorder of the eye and methods of production.
