Results 61 to 70 of about 84,971 (337)

Cold Quad‐Modal Nanocomplex for Precise and Quantitative In Vivo Stem Cell Tracking

open access: yesAdvanced Functional Materials, EarlyView.
Multimodal albumin–bismuth sulfide–superparamagnetic iron oxide (ABS) nanocomplexes are developed for stem cell tracking across four different imaging modalities: MRI, MPI, MSOT, and CT. Combining its flexibility with high sensitivity, this quad‐modal imaging agent enables a robust quantification of ABS‐labeled stem cells in vivo.
Ali Shakeri‐Zadeh   +4 more
wiley   +1 more source

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee   +5 more
wiley   +1 more source

Staining and Embedding of Human Chromosomes for 3-D Serial Block-Face Scanning Electron Microscopy

open access: yesBioTechniques, 2014
The high-order structure of human chromosomes is an important biological question that is still under investigation. Studies have been done on imaging human mitotic chromosomes using mostly 2-D microscopy methods.
Mohammed Yusuf   +5 more
doaj   +1 more source

Multiscale Hybrid Surface Topographies Orchestrate Immune Regulation, Antibacterial Defense, and Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Hybrid wrinkled topographies coordinate immune, tissue, and bacterial interactions. The surfaces promote osteointegration, tune macrophage polarization, and inhibit biofilm formation, highlighting a multifunctional strategy for next‐generation implant design.
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

Ascorbic Acid Modulates Collagen Properties in Glucocorticoid‐Induced Osteoporotic Bone: Insights into Chemical, Mechanical, and Biological Regulation

open access: yesAdvanced Healthcare Materials, EarlyView.
Osteoporosis from long‐term glucocorticoid (GIOP) use elevates susceptibility to fracture. This study shows GCs impair ascorbic acid (AA) metabolism in osteoblasts, collagen synthesis and extracellular matrix integrity. AA enhanced collagen biochemical and mechanical properties and restored osteoblast and endothelial function. These findings underscore
Micaila DE Curtis   +19 more
wiley   +1 more source

Spherical Skin Model: Stratified Co‐Culture of Fibroblasts and Keratinocytes on Spherical Beads Toward Compound Screening

open access: yesAdvanced Healthcare Materials, EarlyView.
Models of the human skin must combine the relevant biological contents and suitable biomaterials with the correct spatial organization. Performing compound screening on such in vitro models also requires fast and reproducible production methods of the models.
Elisa Lenzi   +7 more
wiley   +1 more source

Efecto comparativo del tetróxido de osmio y del tetróxido de rutenio como fijadores sobre la ultraestructura de la pared celular de hongos

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2003
Al microscopio electrónico, la pared celular de los hongos es de apariencia translúcida en especímenes procesados mediante la posfijación convencional con tetróxido de osmio.
Orlando Torres-Fernández   +1 more
doaj   +1 more source

A NEW STAINING METHOD (OTO) FOR ENHANCING CONTRAST OF LIPID-CONTAINING MEMBRANES AND DROPLETS IN OSMIUM TETROXIDE-FIXED TISSUE WITH OSMIOPHILIC THIOCARBOHYDRAZIDE (TCH)

open access: yesJournal of Cell Biology, 1966
Al though the in t roduct ion of fixation of tissue with osmium tetroxide by Palade (8) ushered in the modern era of electron microscopy of biological materials, a need for greater contrast and greater resolution in visualizing membranous structures has ...
A. Seligman, H. Wasserkrug, J. Hanker
semanticscholar   +1 more source

Enhancing Magnetic Hyperthermia at the Cell Membrane by Anchoring 92R‐Functionalized Magnetic Nanoparticles to Low‐Endocytic CCR9 Surface Receptors

open access: yesAdvanced Healthcare Materials, EarlyView.
We present a strategy to enhance magnetic hyperthermia therapy by modulating nanoparticle–cell interactions. Antibody‐functionalized magnetic nanoparticles targeting the low‐internalizing CCR9 receptor enable spatially controlled membrane anchoring, reducing aggregation and maximizing heat generation under alternating magnetic fields.
David Egea‐Benavente   +5 more
wiley   +1 more source

Essai d'un Nouveau Traitement dans I'Arthrite Septique du Genou: La synovectomy Chimiaue par le Tetroxide d Osmium (Rapport Preliminaire)

open access: yesActa Medica Iranica, 1972
A chemical synovectomy by osmium tetroxide was done for 3 patients with septic arthritis of the knee joint. Antibiotics were given in the same time. The result was excellent and a total recovery obtained in 2 weeks.
F. DAVATCHI   +1 more
doaj  

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