A New Water-Soluble Near-Neutral Ratiometric Fluorescent pH Indicator
作者:Sheng Yao、Katherine J. Schafer-Hales、Kevin D. Belfield
DOI:10.1021/ol7026366
日期:2007.12.1
Donor-pi-acceptor fluorene derivative 1c is a near-neutral pHindicator whose pKa of approximately 7.0 was determined by both absorption and fluorescence methods. 1c satisfies important criteria for a sensitive ratiomeric fluorescent pHindicator with a distinctive isoemissive point, good dispersion in cell cytosol, and low cytotoxicity. Furthermore, its 2PA cross section of 100 GM in its neutral form
作者:Moumita Gangopadhyay、Sourav K. Mukhopadhyay、Sree Gayathri、Sandipan Biswas、Shrabani Barman、Satyahari Dey、N. D. Pradeep Singh
DOI:10.1039/c5tb02563j
日期:——
Nanocarrier-mediated photodynamictherapy (PDT) is an effective tool for anti-tumour treatment due to the targeted and image-guided delivery of photosensitizers (PSs) to diseased tissues. These nanocarriers range from inorganic, ceramic, polymeric to biological nanoparticles (NPs). Such PS-grafted bicomponent nanocarriers have limitations like (i) difficulty in surface modification, (ii) lower loading percentages
Two-photon absorbing water soluble fluorescent probe as a near neutral pH indicator
申请人:University of Central Florida Research Foundation, Inc.
公开号:US08232303B1
公开(公告)日:2012-07-31
Disclosed are fluorescent compounds useful as intracellular pH probes. In particular, the invention teaches a two-photon absorbing, water soluble, fluorescent compound, a fluorene derivative, which is effective as a near-neutral pH indicator and particularly as an intracellular probe. A method for chemical synthesis of the claimed compounds is provided.