Publications by authors named "P Jane Gale"

Article Synopsis
  • Upconversion nanoparticles (UCNPs) are useful in biomedicine due to their stability, tunability, and low toxicity, but their small size can limit brightness due to surface quenching.
  • A new strategy uses sulforhodamine B (SRB) dye to enhance energy transfer efficiency, resulting in up to 98.8% efficiency and a significant increase in SRB emission.
  • Further improvements included adding a pH-responsive dye to create a specialized sensor for protons, making the UCNPs suitable for advanced biomedical sensing and imaging.
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Article Synopsis
  • * Halogen substitutions at the ortho position (chlorine and bromine) were found to decrease QY significantly, with values dropping from 70% for 7-hydroxycoumarin to 61% for ortho-chloro and 30% for ortho-bromo, indicating increased energy dissipation.
  • * The study suggests that the reductions in QY are influenced by factors beyond the heavy-atom effect, involving spin-orbit coupling effects that affect intersystem crossing and phosphorescence rates
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Arriving at the University of Virginia in the autumn of 1969, Donald Hunt began his 50+ year career in academics with the study of organometallic chemistry, on which he had done his PhD thesis work, and mass spectrometry, to which he was introduced while a postdoc in Klaus Biemann's laboratory at the Massachusetts Institute of Technology. In the 1970s, Hunt's lab pioneered the use of negative chemical ionization (CI) to enhance sensitivity for studying organic molecules, developed a system for simultaneously obtaining positive and negative CI spectra to augment structure elucidation, and built a prototype triple quadrupole instrument so effective at collisional dissociation that its commercial counterpart became the analytical instrument of choice for mixture analysis for the next decade and beyond. Foreseeing that the future lay in the analysis of biological molecules, by the end of the decade Hunt shifted his focus to peptides.

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This short review highlights recent examples of small-molecule anion transporters reported in the literature that have potentially useful biological activity. This includes anionophores with antibiotic or antifungal activity, anticancer activity, or the potential to treat channelopathies such as cystic fibrosis. Additionally selective and targeted anion transporters are also discussed.

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Article Synopsis
  • - Lanthanide-doped upconversion nanoparticles (UCNPs) can turn low-energy near-infrared light into high-energy visible light, which is useful for various applications, but they often have poor light-harvesting efficiency.
  • - To improve this, organic dye antennas are added, but these systems face issues with photobleaching when exposed to air.
  • - The study introduces cyclooctatetraene (COT) as a triplet state quencher that reduces singlet oxygen generation, enhancing the stability and lifespan of the dyes, which significantly increases their photostability during continuous laser use.
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