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Volumn 9, Issue 6, 2008, Pages 853-856

BODIPY-based fluorescent redox potential sensors that utilize reversible redox properties of flavin

Author keywords

Biosensors; Emission spectroscopy; Flavins; Redox chemistry

Indexed keywords

BORA 3A,4A DIAZA S INDACENE; QUERCETIN; RIBOFLAVIN; THIOPHENE; UNCLASSIFIED DRUG; 4,4 DIFLUORO 4 BORA 3A,4A DIAZA S INDACENE; 4,4-DIFLUORO-4-BORA-3A,4A-DIAZA-S-INDACENE; BORON DERIVATIVE; FLUORESCENT DYE; RIBOFLAVIN DERIVATIVE;

EID: 44049090983     PISSN: 14394227     EISSN: 14397633     Source Type: Journal    
DOI: 10.1002/cbic.200700718     Document Type: Article
Times cited : (40)

References (39)
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    • E. Kimura, T. Koike, M. Shionoya in Structure and Bonding, 89: Metal Sites in Proteins and Models (Eds.: H. A. O. Hill, J. P. Sadler, A. J. Thompson), Springer, Berlin, 1997, pp. 1-28;
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    • 3CN/toluene): C. Trieflinger, K. Rurak, J. Daub, Angew. Chem. 2005, 117, 2328-2331; Angew. Chem. Int. Ed. 2005, 44, 2288-2291.
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  • 31
    • 54349084028 scopus 로고    scopus 로고
    • Negligible interaction between oxidized flavin and BODIPY units of 2ox was observed in the 1H NMR spectra. We could not the measure 1H NMR spectra of 2red, because 2red was easily oxidized. We cannot exclude the possibility that the low emission intensity of 2red is due to some interactions, such as π-π stacking between BODIPY and the reduced flavin unit
    • red is due to some interactions, such as π-π stacking between BODIPY and the reduced flavin unit.
  • 32
    • 54349111836 scopus 로고    scopus 로고
    • red ratio value; details will be described elsewhere.
    • red ratio value; details will be described elsewhere.
  • 33
    • 54349114899 scopus 로고    scopus 로고
    • red (ca. 13-fold) was obtained by excitation at 440 nm in 100 mm HEPES (pH 7.0) containing 30% DMSO. In this work, we chose a common wavelength (450 nm) to excite 1-4 for comparison.
    • red (ca. 13-fold) was obtained by excitation at 440 nm in 100 mm HEPES (pH 7.0) containing 30% DMSO. In this work, we chose a common wavelength (450 nm) to excite 1-4 for comparison.
  • 34
    • 54349117701 scopus 로고    scopus 로고
    • Redox potentials of the DTT-based redox buffer were calculated from the Nernst equation, as described in the Supporting Information. Redox equilibria of 2 in DT7-based redox buffer were obtained in 2 h.
    • Redox potentials of the DTT-based redox buffer were calculated from the Nernst equation, as described in the Supporting Information. Redox equilibria of 2 in DT7-based redox buffer were obtained in 2 h.
  • 35
    • 54349098703 scopus 로고    scopus 로고
    • 0, value obtained from CV (-0.24 V vs. SHE calculated from -0.44 V vs. Ag/AgCl; Table 1) was attributed to the different electrodes and solvents used in CV.
    • 0, value obtained from CV (-0.24 V vs. SHE calculated from -0.44 V vs. Ag/AgCl; Table 1) was attributed to the different electrodes and solvents used in CV.
  • 36
    • 54349103964 scopus 로고    scopus 로고
    • 0, = 30 mV) of 2 and 3 listed in Table 1.
    • 0, = 30 mV) of 2 and 3 listed in Table 1.
  • 37
    • 54349120487 scopus 로고    scopus 로고
    • 0, values of 3 in CV experiments (data not shown).
    • 0, values of 3 in CV experiments (data not shown).
  • 38
    • 54349087986 scopus 로고    scopus 로고
    • We could not detect the formation of superoxide anion radicals, which might be generated upon photoirradiation of 2, in aqueous solutions and in living cells, due to lack of appropriate sensors for ROS with a fluorescence emission that can be distinguished from that of 2.
    • We could not detect the formation of superoxide anion radicals, which might be generated upon photoirradiation of 2, in aqueous solutions and in living cells, due to lack of appropriate sensors for ROS with a fluorescence emission that can be distinguished from that of 2.
  • 39
    • 54349101557 scopus 로고    scopus 로고
    • ox was slightly (5-10%) quenched (Figure S8), possibly due to photoreduction of the flavin unit. Improvements with respect to this point are now underway.
    • ox was slightly (5-10%) quenched (Figure S8), possibly due to photoreduction of the flavin unit. Improvements with respect to this point are now underway.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.