Long decay times (110-150 ms in solution and 136-183 mu s in polystyrene) are responsible for efficient quenching of the emission by oxygen. All the complexes act as efficient sensitizers of singlet oxygen (quantum yields of O-1(2) 0.76-0.95). Optical oxygen sensors prepared on the basis...
Scheme 3. General synthesis of fluorescent sensors based on BAPTA. The bipartite nature of the Ca2+ indicator might suggest that its optical and Ca2+-binding properties are entirely governed its the fluorophore and chelating moiety, respectively. However, this is not the case. This is illustrated...
Chapter 16—Probes for Endocytosis, Receptors and Ion Channels Chapter 17—Probes for Signal Transduction Chapter 18—Probes for Reactive Oxygen Species, Including Nitric Oxide Chapter 19—Indicators for Ca2+, Mg2+, Zn2+ and Other Metal Ions Chapter 20—pH Indicators Chapter 21—In...
Oxygen is essential for aerobic life and is required for various oxygen-dependent biochemical reactions. In addition, oxygen plays important roles in multiple intracellular signaling pathways. Thus, to investigate oxygen homeostasis in living cells, we developed a genetically encoded oxygen sensor protein...
Axial ligands were used to change their solubility or to introduce binding groups. In this way, the complexes were rendered soluble in organic solvents, and they were incorporated into polystyrene or other polymers to yield oxygen sensors. In addition, other axialligands, such as an imidazole liga...
after onset. The right shows the optical mini ΔF/F0as a function of time for v82 and v857, calculated one pixel from the center.n = 96 sites, v82;n = 2,862 sites, v857. Shading denotes s.e.m.d1/2is the distance to half-maximum response. FWHM, full-width at half-...
2% oxygen (air replaced with carbon dioxide). Intestinal tissue was sampled immediately after dissection, and each intestinal segment was ligated. Colon contents were collected, subsequently transferred to liquid nitrogen for rapid freezing, and then transferred to a − 80℃ refrigerator for ...
Yosemitech Y504-a Online Optical Dissolved Oxygen Probe Sensor Contact Now Quick View 00:26 Ultrasonic Level Instrument for Water, Oil, Fuel Ultrasonic Level Sensor Contact Now Quick View 00:44 High Quality Water Level Meter 30m Deep Well St...
Continuous monitoring of oxygen concentration is of great importance in many different areas of research which range from medical applications to food packaging. In the last three decades, significant progress has been made in the field of optical sensin
Heat shock proteins (HSPs) are a family of proteins that are expressed by cells in reply to stressors. The changes in concentration of HSPs could be utilized as a bio-indicator of oxidative stress caused by heavy metal. Exposure to the different heavy metals may induce or reduce the expressi...