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Thermally activated delayed fluorescence (TADF) materials have attracted great potential in the field of organic light-emitting diodes (OLEDs). Among thousands of TADF materials, highly twisted TADF emitters have become a hotspot in recent years. Compared with traditional TADF materials, highly twisted TADF emitters tend to show multi-channel charge-transfer characters and form rigid molecular structures. This is advantageous for TADF materials, as non-radiative decay processes can be suppressed to facilitate efficient exciton utilization. Accordingly, OLEDs with excellent device performances have also been reported. In this Review, we have summarized recent progress in highly twisted TADF materials and related devices, and give an overview of the molecular design strategies, photophysical studies, and the performances of OLED devices. In addition, the challenges and perspectives of highly twisted TADF molecules and the related OLEDs are also discussed.
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http://dx.doi.org/10.1002/anie.202301896 | DOI Listing |
Org Lett
September 2025
Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany.
Helical nanographenes (NGs) play a crucial role in the development of chiral nanomaterials due to their distinctive optoelectronic and chiroptical properties. Herein, we report the efficient synthesis of two unprecedented azulene-embedded asymmetric triple helical NGs ( and ) with controllable helicene subunit lengths and π-extension. The crystallographic analysis confirms their highly twisted and asymmetric geometries.
View Article and Find Full Text PDFCurr Mol Med
August 2025
Department of Biochemistry, Dow International Medical College, Dow University of Health Sciences, OJHA Campus, Karachi, Pakistan.
Introduction: Glioblastoma multiforme (GBM) is a highly aggressive brain tumor with a poor prognosis, primarily due to therapy resistance mediated by CD133+ glioblastoma stem cells (GSCs). The BCL3 gene contributes to this resistance and is potentially regulated by Carbonic Anhydrase II (CA II). Additionally, BCL3 enhances β-catenin-mediated transcription, promoting tumor growth.
View Article and Find Full Text PDFJ Transl Med
August 2025
Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany.
Background: Circulating tumour DNA (ctDNA) in liquid biopsies has emerged as a powerful biomarker in cancer patients. Its relative abundance in cell-free DNA serves as a proxy for the overall tumour burden. Here we present GeneBits, a method for cancer therapy monitoring and relapse detection.
View Article and Find Full Text PDFWe study whispering gallery modes (WGMs) of a ring resonator formed by a highly elliptical two-mode fiber. By imparting the twist to the fiber, one can make this system's topology similar to a Möbius stripe's topology. We show that WGMs of such a Möbius ring resonator (MRR) carry intrinsic orbital angular momentum (OAM).
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
August 2025
Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
A mitochondria-immobilized fluorescent probe Mito-CDM was designed and synthesized for viscosity sensing via the twisted intramolecular charge transfer (TICT) mechanism. The N,N-diethylaminophenyl group is the viscosity-sensitive unit in the prepared Mito-CDM molecular structure, while the pyridinium cation is the mitochondria-targeting group that is responsible for monitoring mitochondrial viscosity. As the viscosity increased from 0.
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