Results 171 to 180 of about 322,728 (311)

Injectable Porous Microspheres Loaded With Biomimetic Preconditioned Bone Marrow Mesenchymal Stem Cell‐Derived Exosomes for Vascularized Bone Regeneration

open access: yesAdvanced Science, EarlyView.
Schematic illustration of injectable PDA‐modified GelMA microspheres loaded with BioPre‐Exos for vascularized bone regeneration. ABSTRACT Critical‐sized bone defects remain a highly challenging clinical problem due to insufficient intrinsic self‐healing capacity.
Lijun Li   +9 more
wiley   +1 more source

Gel‐Amin for Improving Extracellular Recordings of Cardiomyocytes in a 3D Microphysiological System

open access: yesAdvanced Electronic Materials, EarlyView.
This work combines a conductive collagen‐based hydrogel with a laser‐cut and assembly technique to fabricate microphysiological systems that improve extracellular recordings of cardiomyocytes in 3D on microelectrode arrays. The inclusion of choline acrylate into GelMA imparts a higher electrical conductivity and improves the signal‐to‐noise ratio of on‐
Dominic Pizzarella   +4 more
wiley   +1 more source

Robot‐Assisted Doppler Optical Coherence Tomography for Intraoperative Evaluation of Microvascular Anastomoses

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a robot‐assisted Doppler optical coherence tomography system for autonomous, wide‐field intraoperative assessment of microvascular anastomoses. Machine‐vision–guided probe positioning and adaptive scan planning enable three‐dimensional structural and hemodynamic imaging over extended vessel segments.
Xiaochen Li   +10 more
wiley   +1 more source

Compression suture: A method for simulating intervertebral disc degeneration in rats induced by excessive loading

open access: yesAnimal Models and Experimental Medicine, EarlyView.
In the compression suture group, a 5‐mm‐wide tail skin was removed, and then the defect was sutured to apply compressive force to the intervertebral disc. In the sham group, only the 5‐mm‐wide tail skin was removed without a compression suture. Compression suturing triggers apoptosis, inflammatory response, and imbalance of extracellular matrix ...
Xuening Liu   +4 more
wiley   +1 more source

Establishment and multifaceted characterization of a graded spinal cord injury model based on graduated impact depth

open access: yesAnimal Models and Experimental Medicine, EarlyView.
We established a graded spinal cord injury (SCI) model based on graduated impact depth, which was subsequently characterized across multiple dimensions, including locomotor function, imaging, histology, and transcriptomic profiles. We further identified transcriptomic changes in graded SCI at different time points postinjury and investigated the ...
Gang Zhou   +6 more
wiley   +1 more source

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