The connection of fluorescent chromophores to switchable heterocycles translates into molecular probes with ratiometric response to temperature. The opening and closing of their heterocyclic component equilibrates two emissive species with resolved fluorescence. Their relative emission intensities change monotonically with temperature to enable the visualization of thermal distributions at the microscale.
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http://dx.doi.org/10.1039/c8cc09482a | DOI Listing |
Molecules
January 2025
College of Chemistry and Chemical Engineering, Central South University, Changsha 410017, China.
Ratiometric lanthanide coordination polymers (Ln-CPs) are advanced materials that combine the unique optical properties of lanthanide ions (e.g., Eu, Tb, Ce) with the structural flexibility and tunability of coordination polymers.
View Article and Find Full Text PDFPlant Cell Environ
January 2025
Department of Biotechnology, University of Verona, Verona, Italy.
Calcium (Ca)-dependent signalling plays a well-characterised role in the perception and response mechanisms to environmental stimuli in plant cells. In the context of a constantly changing environment, it is fundamental to understand how crop yield and microalgal biomass productivity are affected by external factors. Ca signalling is known to be important in different physiological processes in microalgae but many of these signal transduction pathways still need to be characterised.
View Article and Find Full Text PDFNanomaterials (Basel)
January 2025
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Environmental changes, such as applied medication, nutrient depletion, and accumulation of metabolic residues, affect cell culture activity. The combination of these factors reflects on the local temperature distribution and local oxygen concentration towards the cell culture scaffold. However, determining the temporal variation of local temperature, independent of local oxygen concentration changes in biological specimens, remains a significant technological challenge.
View Article and Find Full Text PDFBiosensors (Basel)
January 2025
Laboratory of Biochemistry, Molecular Biology and Bioluminescent Systems Technology, Department of Physics, Chemistry and Mathematics, Federal University of Sao Carlos (UFSCAR), Rodovia João Leme dos Santos, km 110, Sorocaba 18052-780, SP, Brazil.
Firefly luciferases have been extensively used for bioanalytical applications, including their use as bioluminescent reporters, biosensors, and for bioimaging biological and pathological processes. Due to their intrinsic pH- sensitivity, in recent years we have demonstrated that firefly luciferases can also be harnessed as color- tuning sensors of intracellular pH. However, it is known that mammalian cells require temperatures higher than 36 °C, which red-shift the bioluminescence spectra of most firefly luciferases, decreasing their activities and the resolution of ratiometric pH analysis.
View Article and Find Full Text PDFMethods Appl Fluoresc
January 2025
Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, Liaoning Province, China, Shenyang, 110004, CHINA.
Molybdenum disulfide quantum dots (MoS2 QDs) is a new type of graphite like nanomaterial, which exhibited well chemical stability, unique fluorescence characteristics, and excellent biocompatibility. The conventional hydrothermal synthesis of MoS2 generally requires a long-term reaction at high temperature and high pressure. Herein, we have developed a simple and fast MoS2 QDs synthesis scheme using microwave heating, and further modified the surface of MoS2 QDs using 3-aminophenylboronic acid.
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