Synthesis and physical performance of indole and benzimidazole cyanine dyes
作者:Zheng-Hong Peng、Li Qun、Xiang-Feng Zhou、Suzanne Carroll、Herman. J. Geise、Bi-xian Peng、Roger Dommisse、Robert Carleer
DOI:10.1039/jm9960600559
日期:——
Nine indole and benzimidazole cyanine dyes, used as green-sensitizing dyes in photographic emulsions, are synthesized. The compounds are characterized from mass spectrometric and NMR spectroscopic data, and elemental analysis. FAB mass spectrometry proved to be an efficient method for determining the structure of the compounds. From UV–VIS data of the compounds the sensitizing properties of the cyanine dyes are predicted. The reflection spectrum of Gs2-9 coated in photographic emulsions showed J-aggregation behaviour at λ= 560 nm. Unsymmetric benzimidazole–indole cyanine dyes showed good to excellent green sensitizing properties in photographic emulsions, whereas symmetric indole cyanine dyes showed heavy residual colour and no sensitizing properties.
Design, Synthesis and Biological Evaluation of Trimethine Cyanine Dyes as Fluorescent Probes for the Detection of Tau Fibrils in Alzheimer’s Disease Brain and Olfactory Epithelium
Shedding light on grey matter: Fluorescenttrimethinecyanines were evaluated as imaging probes for neurofibrillary tangles in post‐mortem brain sections of Alzheimer'sdisease patients. These probes bind to neurofibrillary tangles with high contrast and selectivity over amyloid β plaques.
Supramolecular control of photophysical properties of cyanine dyes
作者:Tata Venkata S. Rao、Jeffrey B. Huff、Christopher Bieniarz
DOI:10.1016/s0040-4020(98)00597-3
日期:1998.9
intramolecular complexation of cyanine dyes and cyclodextrins with the objective of modifying the photophysical behaviour of the dyes. We demonstrate that dye inclusion complex formation with cyclodextrins serves to inhibit dimer formation as well as enhance photostability of cyanines. We also show that the modification of the physicochemical properties of cyanine dyes by cyclodextrin complexation is a
COMPOUNDS FOR THE DIAGNOSIS OF NEURODEGENERATIVE DISORDERS ON THE OLFACTORY EPITHELIUM
申请人:Schmidt Boris
公开号:US20130287700A1
公开(公告)日:2013-10-31
Subject of the present invention are compounds with high affinity for the Aβ protein, α-synuclein or for Tau-PHF aggregates, which are suitable as preferably fluorescent probes for the in vivo diagnosis of neurodegenerative disorders like e.g. Alzheimer's disease and Parkinson's disease. The compounds are characterized by suitable physicochemical properties (excitation wavelength, emission wavelength, Stokes shift, extinction) as well as a high affinity and selectivity for the target proteins.