A hand‐held fiber‐optic implement for the site‐specific delivery of photosensitizer and singlet oxygen
A Mahendran, Y Kopkalli, G Ghosh… - Photochemistry and …, 2011 - Wiley Online Library
We have constructed a fiber optic device that internally flows triplet oxygen and externally
produces singlet oxygen, causing a reaction at the (Z)‐1, 2‐dialkoxyethene spacer group,
freeing a pheophorbide sensitizer upon the fragmentation of a reactive dioxetane
intermediate. The device can be operated and sensitizer photorelease observed using
absorption and fluorescence spectroscopy. We demonstrate the preference of sensitizer
photorelease when the probe tip is in contact with octanol or lipophilic media. A first‐order …
produces singlet oxygen, causing a reaction at the (Z)‐1, 2‐dialkoxyethene spacer group,
freeing a pheophorbide sensitizer upon the fragmentation of a reactive dioxetane
intermediate. The device can be operated and sensitizer photorelease observed using
absorption and fluorescence spectroscopy. We demonstrate the preference of sensitizer
photorelease when the probe tip is in contact with octanol or lipophilic media. A first‐order …
A Hand-held Fiber-optic Implement for the Site-specific Delivery of Photosensitizer and Singlet Oxygen
We have constructed a fiber optic device that internally flows triplet oxygen and externally
produces singlet oxygen, causing a reaction at the (Z)-1, 2-dialkoxyethene spacer group,
freeing a pheophorbide sensitizer upon the fragmentation of a reactive dioxetane
intermediate. The device can be operated and sensitizer photorelease observed using
absorption and fluorescence spectroscopy. We demonstrate the preference of sensitizer
photorelease when the probe tip is in contact with octanol or lipophilic media. A first-order …
produces singlet oxygen, causing a reaction at the (Z)-1, 2-dialkoxyethene spacer group,
freeing a pheophorbide sensitizer upon the fragmentation of a reactive dioxetane
intermediate. The device can be operated and sensitizer photorelease observed using
absorption and fluorescence spectroscopy. We demonstrate the preference of sensitizer
photorelease when the probe tip is in contact with octanol or lipophilic media. A first-order …
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