title: An yttrium ion-selective fluorescence sensor based on metal ion-controlled photoinduced electron transfer in zinc porphyrin-quinone dyad.
abstract: A highly Y3+-selective fluorescence sensor has been developed using zinc porphyrin-CONH-quinone dyad (ZnP-CONH-Q). The selective binding of the Q moiety of ZnP-CONH-Q with Y3+ retards electron transfer from the singlet excited state (1ZnP*) to Q, leading to a remarkable enhancement of the fluorescence intensity.
authors.affiliation: Department of Material and Life Science, Graduate School of Engineering, Osaka University, CREST, Japan Science and Technology Agency (JST), Suita, Osaka 565-0871, Japan.
authors.forename: Ken
authors.initials: K
authors.lastname: Okamoto
authors.forename: Shunichi
authors.initials: S
authors.lastname: Fukuzumi
mesh_terms: D015374:Biosensing Techniques / Q000379:methods; D005456:Fluorescent Dyes / Q000737:chemistry*; D008665:Metalloporphyrins / Q000737:chemistry*; D010777:Photochemistry; D011809:Quinones / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013816:Thermodynamics; D015019:Yttrium / Q000032:analysis* / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D008665:Metalloporphyrins; D011809:Quinones; D015019:Yttrium; D015032:Zinc