Results 131 to 140 of about 233,126 (310)

Microphysiological Systems for Comorbidity Studies: Chronic Kidney Disease and Osteoarthritis

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights the potential of organ‐on‐a‐chip systems for studying comorbidities, using chronic kidney disease (CKD) and osteoarthritis (OA) as examples. It summarizes recent advances in kidney‐on‐a‐chip and joint‐on‐a‐chip models and discusses their current and potential application in investigating CKD, OA, and CKD‐OA comorbidity, aiming to
Mingying Han   +7 more
wiley   +1 more source

Extended Theories of Gravitation

open access: yesEPJ Web of Conferences, 2013
Extended theories of gravitation are naturally singled out by an analysis inspired by the Ehelers-Pirani-Schild framework. In this framework the structure of spacetime is described by a Weyl geometry which is enforced by dynamics.
Fatibene Lorenzo   +3 more
doaj   +1 more source

Conditioned Media from Mechanically Stimulated Macrophages Upregulate Osteogenic Genes in Human Mesenchymal Stromal Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Bone fracture healing is a complex, timely orchestrated scenario involving multiple cell types and a plethora of cytokines and regulatory factors. To gain further insight, an in vitro model to a) study macrophage polarization under mechanical load in a fibrin hydrogel and b) subsequently assess the effect of conditioned media derived from macrophages ...
Anne Géraldine Guex   +4 more
wiley   +1 more source

Toward Noninvasively Imaging pH at the Surface of Implanted Orthopedic Devices in Live Rabbits Using X‐ray Excited Luminescence Chemical Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
Imaging pH in a live rabbit at the surface of a sensor‐coated titanium plate using X‐ray excited luminescent chemical imaging (XELCI). A raster scanning X‐ray beam generates radioluminescence from a spot on the sensor, and the luminescence passes through the tissue and is collected at two wavelengths to determine local pH.
Unaiza Uzair   +6 more
wiley   +1 more source

Safety Evaluation of Repeated Application of Polymeric Microarray Patches in Miniature Pigs

open access: yesAdvanced Healthcare Materials, EarlyView.
This study demonstrates the safety of repeated application of three types of microarray patches (MAPs), hydrogelforming, dissolving, and implantable, over four weeks in miniature pigs. No adverse skin or systemic effects were observed, supporting the clinical potential of MAPs as safe and effective drug delivery platforms.
Qonita Kurnia Anjani   +4 more
wiley   +1 more source

An Organ‐on‐Chip Platform for Strain‐Controlled, Tissue‐Specific Compression of Cartilage and Mineralized Osteochondral Interface to Study Mechanical Overloading in Osteoarthritis

open access: yesAdvanced Healthcare Materials, EarlyView.
A mechanically active OsteoChondral Unit (OCU)‐on‐Chip platform mimicking the OCU's functional anatomy and the strain gradient across the osteochondral interface is presented. Upon compartment‐specific hyperphysiological compression, the model replicates mechanisms observed in osteoarthritis (OA) progression, such as calcium crystal accumulation ...
Andrea Mainardi   +10 more
wiley   +1 more source

Ultra‐Tiny Gelatin Nanoparticles‐Assisted 3D Stem Cell Spheroids for Engineering Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
GNPs effectively guide the formation of structurally compact and functionally enhanced stem cell spheroids. This GNP‐assisted 3D culture system improves cell–cell and cell‐ECM interactions, leading to superior viability and complexity. Time‐dependent regenerative potential is demonstrated in both bone and skin defects, positioning GNP‐spheroids as a ...
Dream Kim   +7 more
wiley   +1 more source

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