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Found 839 Results / Page 1 of 56
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Nanosensor-based monitoring of autophagy-associated lysosomal acidification in vivo
2023 / Nature Chemical BiologyAutophagy is a cellular process with important functions that drive neurodegenerative diseases and cancers. Lysosomal hyperacidification is a hallmark of autophagy. Lysosomal pH is currently measured by fluorescent probes in cell culture, but existing methods do not allow for quantitative, transient or in vivo measurements. In the present study, we developed near-i...
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Effects of Heat Treatment on the Microstructure and Optical Properties of Sputtered GeO2 Thin Films
2023 / Advanced Engineering MaterialsMicrostructure and composition significantly influence the physical properties of thin films. Therefore, these can be adapted to enhance the functionality of thin films for practical applications. Herein, the anomalous microstructural evolution of sputtered GeO2 thin films based on postdepositional heat treatments is reported. Temperature-dependent microstructura...
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Ion–Dipole Interaction Enabling Highly Efficient CsPbI3 Perovskite Indoor Photovoltaics
2023 / Advanced MaterialsMetal halide perovskites are ideal candidates for indoor photovoltaics (IPVs) because of their easy-to-adjust bandgaps, which can be designed to cover the spectrum of any artificial light source. However, the serious non-radiative carrier recombination under low light illumination restrains the application of perovskite-based IPVs (PIPVs). Herein, polar molecules...
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Photocrosslinkable Zwitterionic Ligands for Perovskite Nanocrystals: Self-Assembly and High-Resolution Direct Patterning
2023 / Advanced Functional MaterialsPerovskite nanocrystals (PNCs) are attractive photoactive materials in various optoelectronic devices including light-emitting diodes, solar cells, and photodetectors. However, the weakly bound surface ligands on PNCs reduce colloidal stability and cause film formation and patterning difficulties, severely restricting their practical applications. Herein, a ratio...
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Enhanced Förster Energy Transfer Through Horizontal Orientation of Sensitizer Molecules in Hyperfluorescent Organic Light-Emitting Diodes
2023 / Advanced Optical MaterialsFörster resonance energy transfer (FRET) in sensitized fluorescent (SF) organic light-emitting diodes (OLEDs) is an important process for suppressing triplet exciton loss during energy transfer toward the fluorescent dopant. Herein, the contribution of the relative orientation between the sensitizer and emitting dopant to the FRET in state-of-the-art SF OLED...
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High-Performance Silver-Doped Porous CuBi2O4 Photocathode Integrated with NiO Hole-Selective Layer for Improved Photoelectrochemical Water Splitting
2023 / Advanced Sustainable SystemCuBi2O4(CBO) has received considerable attention owing to its ideal optical bandgap and positive photocurrent onset potential. However, CBO photocathodes exhibit poor charge carrier separation and transfer across the conducting substrate interface. Herein, a systematic incorporation of Ag+-cations into nanosized porous CBO network (ACBO) using a simple pulsed-ele...
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Strong Dopant–Dopant Electronic Coupling in Emissive Codoped Two Dimensional Metal Halide Hybrid
2023 / The Journal of Physical Chemistry LettersMultimetallic halide hybrids are attractive for the fundamental understanding of interacting excitons. However, realizing halide hybrids that incorporate multiple heterometal centers has been synthetically challenging. This further limits access to gaining physical insight into the electronic coupling mechanism between the constituent metal halide units. Reported h...
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Co-doped yttria borate glasses: investigation of physical, FTIR spectroscopy, optical and radiation interaction characteristics
2023 / Journal of Materials Science: Materials in ElectronicsCobalt oxide (CoO) doped with yttria zinc borate sodium fluoride glasses with chemical formula 25NaF–10ZnO–0.6Y2O3–(65−y)B2O3– (y)CoO: 0 (Co-0.0 ≤ y ≤ 0.4 (Co-0.4) mol% have been produced using the melt quenching method. Role of CoO mol% on physical, FTIR spectroscopy, linear/nonlinear optical featur...
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Effect of Multiwalled Carbon Nanotube Contents on Photophysical Properties of Poly-TPD/MWCNT Nanocomposites
2023 / Journal of Inorganic and Organometallic Polymers and MaterialsTuning photophysical properties of poly[bis(4-butypheny)-bis(phenyl)benzidine] (poly-TPD) by addition multi walled carbon nanotubes (MWCNTs) with different weight ratios is demonstrated. The solution blending method followed by spin coating technique was used to successfully prepare thin films of poly-TPD/MWCNTs. Fourier transform infrared spectroscopy (FTIR) rev...
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Photoinduced properties of anodized Ti alloys for biomaterial applications
2023 / Scientific ReportsThe photocatalytic properties of anodic oxides on a newly developed TiNbSn and commonly used Ti6Al4V alloys as biomaterials were investigated. The alloys were anodized in an electrolyte of sodium tartrate acid with H2O2 at a high voltage and the mechanism of the photocatalytic and antiviral activities was studied. The anodized TiNbSn and Ti6Al4V exhibited highly ...
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Room temperature valley polarization via spin selective charge transfer
2023 / Nature CommunicationsThe two degenerate valleys in transition metal dichalcogenides can be used to store and process information for quantum information science and technology. A major challenge is maintaining valley polarization at room temperature where phonon-induced intervalley scattering is prominent. Here we demonstrate room temperature valley polarization in heterostructures o...
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Preparation of capsaicin-loaded ultrafine fiber film and its application in the treatment of oral ulcers in rats
2023 / Scientific ReportsA drug-loaded diaphragm is an easy-to-use and effective drug delivery system that is often used to treat mouth ulcers. In this study, an ultrafine fiber film loaded with capsaicin was successfully prepared using the electrospinning technology. poly-L-lactic acid and gelatin were selected as the matrix materials to form the composite fiber, and trifluoroethanol wa...
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Helical-Like Assembly of Nateglinide as Coating for Oral Delivery of Insulin and Their Synergistic Prevention of Diabetes Mellitus
2023 / Advanced ScienceOral delivery of antidiabetic active components promises to free millions of people from daily suffering who require routine injections. However, oral insulin (Ins) and other short-acting compounds such as nateglinide (NG) in harsh gastrointestinal tract still face great challenging, including low bioavailability, and rapid elimination. In this study, inspired by t...
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Chiroptical response inversion and enhancement of room-temperature exciton-polaritons using two-dimensional chirality in perovskites
2023 / Advanced MaterialsAlthough chiral semiconductors have shown promising progress in direct circularly polarized light (CPL) detection and emission, they still face potential challenges. A chirality-switching mechanism or approach integrating two enantiomers is needed to discriminate the handedness of a given CPL; additionally, a large material volume is required for sufficient chiropt...
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The amide derivative of anticopalic acid induces non-apoptotic cell death in triple-negative breast cancer cells by inhibiting FAK activation
2023 / Scientific ReportsAnticopalic acid (ACP), a labdane type diterpenoid obtained from Kaempferia elegans rhizomes, together with 21 semi-synthetic derivatives, were evaluated for their cancer cytotoxic activity. Most derivatives displayed higher cytotoxic activity than the parent compound ACP in a panel of nine cancer cell lines. Among the tested compounds, the amide 4p showed the hi...
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