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Unusual Temperature-Dependent Photoluminescence Due to Competing Excited-State Energy Transfer in Rare Earth Double Perovskites.
J Phys Chem Lett
January 2025
Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States.
Lead-free halide double perovskites (DPs) have become a research hotspot in the field of photoelectrons due to their unique optical properties and flexible compositional tuning. However, the luminescence of DPs exhibits thermal quenching at high temperatures, which severely affects their further application. Herein, we synthesized the rare earth Dy and transition metal Mn codoped CsNaYCl rare earth DPs and characterized the optical properties using temperature-dependent photoluminescence spectra and time-resolved photoluminescence decay profiles at different temperatures.
View Article and Find Full Text PDFThickness Dependent Structural Transition in Ph-BTBT-10 Thin Films and Stabilization of the Ubiquitous Interface Bilayer.
ACS Appl Mater Interfaces
January 2025
Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, Carrer dels Til·lers, s/n, Bellaterra, 08193 Barcelona, Spain.
The influence of the film/substrate interface and the role of film thickness on the structural transition temperature for thin films of the asymmetric BTBT derivative 7-decyl-2-phenyl[1]benzothieno[3,2-][1]-benzothiophene (Ph-BTBT-10) have been addressed by using Kelvin probe force microscopy (KPFM) and synchrotron grazing incidence wide angle X-ray scattering (GIWAXS). Our data strongly suggest that the structural transformation from a single-layer phase to the thermodynamically stable bilayer structure develops from the bottom of the film to its surface. Contrary to observations in other organic semiconductor films, notably, the thinner the Ph-BTBT-10 film, the lower is the transition temperature.
View Article and Find Full Text PDFCase report: High-grade serous tubo-ovarian carcinoma with fusion and insights into targetability.
Front Oncol
December 2024
Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.
fusion is one of the classes of emerging therapeutic targets of precision oncology and is observed in many solid tumor types. Our understanding of oncogenic mechanisms and therapy effects of molecular targets tends to reflect those occurring in overrepresented tumor types, posing a challenge in therapy planning of the same targets occurring in unusual tumor types. We present a case of a primary high-grade serous tubo-ovarian carcinoma with a novel fusion, an exceedingly rare combination of tumor type and fusion class, with an unusually short-lived response to futibatinib.
View Article and Find Full Text PDFStructure similarity based screening coupled to integrated structural biochemistry approach for exploring the high affinity inhibitors against histone deacetylase (HDAC)-6.
In Silico Pharmacol
January 2025
School of Chemical and Biotechnology, SASTRA University, Thanjavur, 613401 Tamil Nadu India.
Histone deacetylase (HDAC)-6 has overwhelming implications in multiple cancers and neurodegenerative disorders. Unusual HDAC6 expression modulates various signalling mechanisms which in turn forms the aetiology of the above-mentioned disorders. Thus, restoring the typical activity of HDAC6 through small molecules may prove as a promising approach to beat these disorders.
View Article and Find Full Text PDFControlling the Spatiotemporal Self-Organization of Stimuli-Responsive Nanocrystals under Out-of-Equilibrium Conditions.
J Am Chem Soc
January 2025
Department of Chemistry, Burke Laboratory, Dartmouth College, Hanover, New Hampshire 03755, United States.
Self-organization under out-of-equilibrium conditions is ubiquitous in natural systems for the generation of hierarchical solid-state patterns of complex structures with intricate properties. Efforts in applying this strategy to synthetic materials that mimic biological function have resulted in remarkable demonstrations of programmable self-healing and adaptive materials. However, the extension of these efforts to multifunctional stimuli-responsive solid-state materials across defined spatial distributions remains an unrealized technological opportunity.
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