Nanoscale tellurium (Te) materials are promising for advanced optoelectronics owing to their outstanding photoelectrical properties. In this work, high-performance optoelectronic nanodevice based on a single tellurium nanotube (NT) was prepared by focused ion beam (FIB)-assisted technique. The individual Te NT photodetector demonstrates a high photoresponsivity of 1.65 × 10 AW and a high photoconductivity gain of 5.0 × 10%, which shows great promise for further optoelectronic device applications.
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http://dx.doi.org/10.3390/mi13010011 | DOI Listing |
Nat Commun
January 2025
College of Energy, Xiamen University, Xiamen, China.
The lack of high-efficiency platinum (Pt)-based nanomaterials remains a formidable and exigent challenge in achieving high formic acid oxidation reaction (FAOR) and membrane electrode assembly (MEA) catalysis for direct formic acid fuel cell (DFAFC) technology. Herein, we report 16 Pt-based heterophase nanotrepang with rare earth (RE)-doped face-centered cubic Pt (fcc-Pt) and trigonal Pt-tellurium (t-PtTe) configurations ((RE-Pt)-PtTe HPNT). Yttrium (Y) is identified as the optimal dopant, existing as single sites and clusters on the surface.
View Article and Find Full Text PDFClin Radiol
December 2024
Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China. Electronic address:
Aim: Coronary artery disease (CAD) is a primary cause of mortality, prompting ongoing research into noninvasive diagnostic modalities. This study aimed to evaluate the diagnostic efficacy of exercise electrocardiography testing (EET) combined with cadmium zinc tellurium cardiac-dedicated single photon emission computed tomography (CZT-SPECT) imaging for CAD.
Materials And Methods: CZT-SPECT and EET were examined in 124 patients aged 20-85 years, followed by coronary angiography to evaluate the sensitivity, specificity, positive predictive value, and negative predictive value of EET/CZT-SPECT alone and in combination.
Cytometry A
December 2024
Mass Cytometry Core, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Barcoding viable cells combined with pooled sample staining is an effective technique that eliminates batch effects from serial cell staining and facilitates uninterrupted data acquisition. We describe three novel and isotopically pure selenium-containing compounds (SeMals) that are useful cellular labeling tools. The maleimide-functionalized selenophenes (SeMal, SeMal, and SeMal) covalently react with cellular sulfhydryl groups and uniquely label cell samples.
View Article and Find Full Text PDFNat Commun
November 2024
Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong SAR, P. R. China.
Understanding precise structures of two-/three- dimensional (2D/3D) covalent organic polymers (COPs) through single-crystal X-ray diffraction (SCXRD) analysis is important. However, how to grow high-quality single crystals for 2D/3D COPs is of challenge due to poor reversibility and difficult self-correction of covalent bonds. In addition, the success of introducing tellurium into the backbone to construct 2D/3D COPs and obtaining their single crystals is rare.
View Article and Find Full Text PDFACS Nano
November 2024
School of Physical Science and Technology and Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Wuhan University, Wuhan 430072, P. R. China.
Defect engineering in the inherently inert basal planes of transition metal dichalcogenides (TMDs), involving the introduction of chalcogen vacancies, represents a pivotal approach to enhance catalytic activity by exposing high-density catalytic metal single-atom sites. However, achieving a single-atom limit spacing between chalcogen vacancies to form ordered superstructures remains challenging for creating uniformly distributed high-density metal single-atom sites on TMDs comparable to carbon-supported single-atom catalysts (SACs). Here we unveil an efficient TMD-based topological catalyst for hydrogen evolution reaction (HER), featuring high-density single-atom reactive centers on a few-layer (7 × 7)-PtTe superstructure.
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