Results 121 to 130 of about 9,142,015 (290)

Wafer‐Scale Direct Growth of Ultraclean Monolayer Amorphous Carbon on c‐Sapphire by Remote Catalytic Dehydrogenation

open access: yesAdvanced Materials, EarlyView.
Remote catalytic dehydrogenation enables the direct growth of monolayer amorphous carbon on a 2‐inch sapphire wafer by thermal CVD. Spatial separation of the catalyst from the growth substrate eliminates metallic residue and post‐growth processing, yielding a wafer‐scale uniform film with a random polygonal sp2‐hybridized carbon network that exhibits ...
Muhammad Sabbtain Abbas   +8 more
wiley   +1 more source

Comparative evaluation of Stone Cone and NTrap for prevention of stone retropulsion during ureteroscopic lithotripsy for upper and mid-ureteric calculi

open access: yesAfrican Journal of Urology
Background Stone retropulsion during ureteroscopic lithotripsy (URSL) adversely affects stone-free rates and may increase the need for auxiliary procedures, particularly in upper and mid-ureteric calculi.
Vignesh Vivekanandam   +3 more
doaj   +1 more source

Programmable Microgel Degradation in Dynamic Granular Hydrogels Guides Extracellular Matrix Assembly During Tissue Repair

open access: yesAdvanced Materials, EarlyView.
This study reports on the chemical modification of hyaluronic acid to create hydrogels with hydrolytic degradability ranging from 2–28 days. Granular hydrogels that undergo timed degradation to increase porosity enhance cell invasion and provisional ECM remodeling in a muscle injury model, leading to reduced fibrosis and improved regeneration ...
Zhiyuan Chen   +7 more
wiley   +1 more source

Comparison of STONE, Guy’s Stone, and Seoul National University Renal Stone Complexity (S-ReSC) Scoring Systems for PCNL Monotherapy in Staghorn Stones

open access: yesUrology Research and Practice
Objective: Accurate evaluation of staghorn stones is crucial for predicting the likeli hood of achieving stone-free status through percutaneous nephrolithotomy. Scoring systems such as the Stone size, Tract length, Obstruction, Number of calyces, Essence
Santhosh Srinivasan   +4 more
doaj   +1 more source

Reduced Graphene Oxide Enhances the Vascular Organization and Contractile Performance of Fibrin‐Gelatin‐Based Engineered Cardiac Tissue

open access: yesAdvanced Materials Interfaces, EarlyView.
Fibrin–gelatin hydrogels functionalized with reduced graphene oxide create a mechanically stable and bioactive 3D environment for engineered cardiac tissue. The composite matrix promotes endothelial lumen formation, enhances sarcomeric protein expression, and increases contractile performance of embedded cardiomyocytes.
Christoph Kuckelkorn   +5 more
wiley   +1 more source

The Swiss Kidney Stone Cohort: An Observational Study to Unravel the Cause of Renal Stone Formation.

open access: yes, 2017
Its nationwide character, standardized and extensive patient work-up, long-term follow-up, and significant number of patients recruited make the Swiss Kidney Stone Cohort a valuable tool to better understand the pathophysiology of kidney stone ...
Olivier Bonny   +7 more
core   +1 more source

Microfluidic Droplet Plate Preserving Single Human Induced Pluripotent Stem Cell‐Derived Cardiomyocytes Morphology and Function

open access: yesAdvanced Materials Technologies, EarlyView.
We introduce a novel method combining microfluidics, optogenetics, and human induced pluripotent stem cell (iPSC) technology to encapsulate single iPSC‐derived cardiomyocytes (iPSC‐CMs) in an optimal environment for functional characterization. This method enables direct genotype‐phenotype correlation for genetic studies and high‐throughput screening ...
Xiao‐Ting Wang   +7 more
wiley   +1 more source

Concerns about stone free rate and procedure events of percutaneous nephrolithotripsy (PCNL) for 2-4 cm kidney stones by standard-PCNL vs mini-PCNL- comparative randomised study. [PDF]

open access: yesBMC Urol, 2023
Wishahi M   +12 more
europepmc   +1 more source

Self‐Sealing Microneedles Improve Precision and Reduce Reflux in Subretinal Cell Transplantation

open access: yesAdvanced Materials Technologies, EarlyView.
Ultrafine 49G microneedles enable subretinal delivery of induced pluripotent stem cell‐derived retinal pigment epithelial cells through a 50 µm outer diameter tip. Compared with conventional 38G microcannulas, these microneedles reduce cell suspension reflux in a rabbit model, highlighting the potential of microinvasive delivery instruments to improve ...
Jared Ching   +9 more
wiley   +1 more source

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