A red fluorescent probe (Mito-V) with a long lifetime was designed to monitor viscosity changes with high selectivity and sensitivity. The fluorescence intensity and lifetime of Mito-V displayed a good relationship with the viscosity value, and Mito-V was successfully applied to sensing mitochondrial viscosity changes in living cells under different biological processes.
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http://dx.doi.org/10.1039/c9cc03977e | DOI Listing |
Cryobiology
January 2025
Yanbian University College of Agriculture, Yanbian Korean Autonomous Prefecture, 133000, China. Electronic address:
Vitrification is a conventional and mature method for embryo cryo-preservation, but ice crystals formed during the vitrification process can damage embryos. HPC has the property of forming a high-viscosity gel under low-temperature conditions, so it can be added to vitrification solutions to investigate whether it improves the negative impact of vitrification on embryos. The results showed that the addition of HPC (50 μg/ml) to the vitrification solution significantly increased the post-warming survival rate of sheep morula embryos.
View Article and Find Full Text PDFACS Appl Bio Mater
January 2025
Department of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States.
This paper presents the development of near-infrared (NIR) fluorescent probes, and , engineered from hemicyanine dyes with 1,8-naphthalic and rhodamine derivatives for optimized photophysical properties and precise mitochondrial targeting. Probes and exhibit absorption peaks at 737 nm and low fluorescence in phosphate-buffered saline (PBS) buffer. Notably, their fluorescence intensities, peaking at 684 () and 702 nm (), increase significantly with viscosity, as demonstrated through glycerol-to-PBS ratio experiments.
View Article and Find Full Text PDFChemistry
January 2025
Shiv Nadar University, CHEMISTRY, NH 91, TEHSIL DADRI, GAUSTAM BUDHA NAGAR, 201314, GREATER NOIDA, INDIA.
Since death is an inevitable phenomenon, exploring cell deaths holds importance. During this process, the cellular microenvironment within cells such as pH, polarity, viscosity etc alter. One such microenvironment, viscosity elevates during different cell deaths.
View Article and Find Full Text PDFTalanta
December 2024
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China. Electronic address:
The intracellular viscosity plays a pivotal role as a physicochemical factor and an important indicator of organelles performance. Abnormal changes in subcellular viscosity are often associated with cellular malfunction and various diseases. Nonalcoholic steatohepatitis (NASH) is the most common liver disease related with type 2 diabetes mellitus (T2DM), and both are linked to aberrant mitochondrial viscosity.
View Article and Find Full Text PDFTalanta
December 2024
State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Institute of Artificial Intelligence Biomedicine, Nanjing University, Nanjing, 210023, PR China; Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake/ Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huai'an, 223300, PR China. Electronic address:
Abnormal mitochondrial viscosity is closely associated with a wide range of diseases and cellular dysfunction. It is crucial to develop fluorescent probes for precisely monitoring changes of mitochondrial viscosity in the detection and treatment of associated diseases. However, mitochondria-targeted fluorescent probes currently faced off-target problems because their high water-solubility could hinder the accurate detection of mitochondrial viscosity.
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