Correlating in vivo imaging of neurons and their synaptic connections with electron microscopy combines dynamic and ultrastructural information. Here we describe a semi-automated technique whereby volumes of brain tissue containing axons and dendrites, previously studied in vivo, are subsequently imaged in three dimensions with focused ion beam scanning electron microcopy. These neurites are then identified and reconstructed automatically from the image series using the latest segmentation algorithms. The fast and reliable imaging and reconstruction technique avoids any specific labeling to identify the features of interest in the electron microscope, and optimises their preservation and staining for 3D analysis.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3585404 | PMC |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0057405 | PLOS |
Adv Sci (Weinh)
January 2025
Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Department of Orthopedic Surgery, Hangzhou Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, 310000, China.
Osteoarthritis (OA) is a globally prevalent degenerative joint disease. Recent studies highlight the role of ferroptosis in OA progression. Targeting ferroptosis regulation presents a promising therapeutic strategy for OA; however, current research primarily focuses on single targets associated with ferroptosis.
View Article and Find Full Text PDFSmall
January 2025
Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China.
The reasonable design of advanced anode materials for electrochemical energy storage (EES) devices is crucial in expediting the progress of renewable energy technologies. NbO has attracted increasing research attention as an anode candidate. Defect engineering is regarded as a feasible approach to modulate the local atomic configurations within NbO.
View Article and Find Full Text PDFJ Taibah Univ Med Sci
February 2025
Department of Prosthodontics/Dental Material, Dr. Ziauddin Ahmad Dental College, Aligarh Muslim University, India.
Objectives: Calcium ions (Ca) play crucial role in tooth development, particularly in maintaining enamel density during amelogenesis. Ameloblasts require specific proteins such as amelogenin, ameloblastin, enamelin, kallikrein, and collagen for enamel growth. Recent research has highlighted the importance of calcium and fluoride ions, as well as the TRPM7, STIM, and SOCE pathways, in regulating various stages of enamel formation.
View Article and Find Full Text PDFNanoscale
January 2025
College of Science, China Agricultural University, Beijing, 100083, China.
Aqueous zinc-ion batteries are an appealing electrochemical energy storage solution due to their affordability and safety. Significant attention has been focused on vanadium oxide cathode materials for ZIBs, owing to their high specific capacity, unique layered or tunnel structures, and low cost. Compared to traditional methods for preparing and assembling electrode materials, direct current (DC) magnetron sputtering allows direct synthesis and uniform deposition on current collectors, offering advantages such as simplicity, mild reaction conditions, and strong film adhesion.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
January 2025
Institute of Intelligent Machines, Hefei Institute of Intelligent Agriculture, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; Science Island Branch of Graduate School, University of Science & Technology of China, Hefei 230026, China. Electronic address:
The out-of-plane (OOP) deformations of metalloporphyrins macrocycle are closely related to their biological functions, and Raman spectroscopy is a powerful tool for investigating OOP deformations. However, due to the interplay of electronic structure, substituents, porphyrin macrocycle in-plane (IP) and OOP deformations, it is challenging to measure the OOP deformations directly, or, establish a confirmative correlation between the frequency shifts of characteristic peaks and specific OOP deformation changes. In this work, we first selected the model porphyrin Ni-P and employed DFT calculations to explore the relationship between the ruffling and saddling deformation changes and their corresponding Raman spectral differences.
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