A cyanine dye having the structure
has an overall positive charge greater than +1, by virtue of the presence of one to five positively charged N or P or S atoms, and also has a reactive or functional group by which it may be linked to a biomolecule or a solid surface.
from pink to pale green. Moreover, the probes’ fluorescence responses toward pH fluctuations were reversible and stable, and the pseudo-linear relationship between the fluorescence intensity and pH value can be used to detect pH value in 2.76–6.45 range quantitatively. Finally, probe 6 and 7 were successfully applied to monitor the fluctuation of intracellular pH by a fluorescence turn-on mode, and the
Provided herein is a drug delivery (DD) system for ratiometric luminescence determination of drug release degree in drug delivery monitoring, which includes a drug, a switchable reporter and non-switchable reporter providing two distinguishable signals for detection; or a single switchable reporter providing two distinguishable signals for detection, and a cleavable linker connecting a drug to a switchable reporter, as well as a method for ratiometric luminescence determination of drug release in a target in vivo or in vitro), which is effected by administering the DD system provided herein that is capable of releasing a drug from the DD system, measuring two luminescent signals provided by the switchable reporter and the non-switchable reporter, or the single switchable reporter, determining the ratio between these two luminescence signals, and determining the drug release degree through the ratio between the two luminescence signals.
Comparative Study of Novel Fluorescent Cyanine Nucleotides: Hybridization Analysis of Labeled PCR Products Using a Biochip
作者:V. E. Shershov、S. A. Lapa、V. E. Kuznetsova、M. A. Spitsyn、T. O. Guseinov、S. A. Polyakov、A. A. Stomahin、A. S. Zasedatelev、A. V. Chudinov
DOI:10.1007/s10895-017-2139-6
日期:2017.11
efficiency of nucleotideincorporation during PCR was assessed with a multi-parameter hybridization analysis using a diagnostic DNA microarray. The hybridization analysis indirectly estimates the incorporation efficiency of dye-labeled nucleotides in multiplex PCR. Our results demonstrated higher efficiencies of substrates with electrically neutral dyes than electropositive and electronegative Cy5 residues
MEANS AND METHODS FOR VISUALIZATION OF TISSUE STRUCTURES
申请人:GRETZ Norbert
公开号:US20190353565A1
公开(公告)日:2019-11-21
The present invention relates to a chemical compound comprising (i) a polycationic polymer, coupled to (ii) a dye. The present invention further relates to a method for visualizing a glycosamine-containing structure in a biological sample comprising a) contacting an inner lumen of said biological sample with a dye-conjugated polycationic polymer, preferably with the chemical compound according to the present invention; b) tissue-clearing said biological sample; and, thereby, c) visualizing an internal glycosamine-containing structure in said biological sample. The present invention also relates to a method for determining the number and/or size of glomeruli in a kidney or a sample thereof making use of the method for visualizing a glycosamine-containing structure; and also relates to kits and uses related to said chemical compounds and said methods.