Results 101 to 110 of about 114,375,636 (265)

Spatial Control of Light‐Responsive Proteins and Optogenetics Within Hydrogels via Volumetric Bioprinting

open access: yesAdvanced Materials, EarlyView.
Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi   +14 more
wiley   +1 more source

S‐Nitrosothiols as Thiol‐Protecting Groups for Controlled Thiol‐Maleimide Crosslinking of Homogeneous Soft Hydrogels

open access: yesAdvanced Materials, EarlyView.
Rapid thiol‐maleimide addition frequently outpaces mixing, resulting in heterogeneous hydrogels. S‐nitrosothiols act as thiol‐protecting groups, allowing uniform mixing with maleimide‐functionalized polymers before gelation. Sodium thiosulfate or sodium ascorbate then regenerates thiols on demand, triggering controlled thiol‐maleimide crosslinking ...
Julian A. Serna   +7 more
wiley   +1 more source

Distribution pattern and influencing factors of in-situ stress for deep levels in Shoushan No.1 Coal Mine

open access: yesMeitan xuebao
To investigate the distribution pattern and influencing factors of in-situ stress for deep levels in the Shoushan No.1 Mine, according to the measured in-situ stress data of the mine, the tectonophysics and rock mechanics and numerical simulation methods
Deyong GUO   +3 more
doaj   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

open access: yesAdvanced Materials, EarlyView.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain   +25 more
wiley   +1 more source

Research progress on seismic reflection and transmission based on solid acoustoelasticity theory

open access: yes地球与行星物理论评
Multi-stage sedimentation and diagenetic processes lead to complex in situ stresses in subsurface hydrocarbon reservoirs. The in situ stresses have a broad magnitude range and their distribution directions are complicated, significantly impacting the ...
Fubin Chen, Zhaoyun Zong, Xingyao Yin
doaj   +1 more source

Polar Wurtzite NbAlN: A Transition‐Metal Nitride Alloy for Polarization‐Engineered GaN Heterostructures

open access: yesAdvanced Materials, EarlyView.
A novel polar wurtzite alloy, NbAlN, is demonstrated as a transition‐metal‐containing polar barrier for GaN heterostructures. Nb atoms form coherent nanoscale enrichment within the wurtzite lattice without disrupting metal polarity. This study demonstrates that transition metals can be integrated into polar nitrides to enable polarization‐related ...
Atsushi Kobayashi   +12 more
wiley   +1 more source

Correction of Surface Tensile Stress in In-situ Stress Field Inversion Using the Virtual Measuring Point Method

open access: yesJournal of Physics: Conference Series
Abstract Surface tensile stress anomalies frequently arise during in-situ stress field inversion via multiple linear regression, compromising result reliability. To resolve this, we propose a novel method integrating distributed surface virtual measuring points with zero stress components.
Yue Liu   +5 more
openaire   +1 more source

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

open access: yesAdvanced Materials Technologies, EarlyView.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi   +4 more
wiley   +1 more source

Major advances and prospects in in-situ stress measurement and estimation methods over the past 10 years (2014–2025)

open access: yesDizhi lixue xuebao
Objective  The characteristics of the in-situ stress field are fundamental to major strategic underground engineering projects, deep earth resource and energy development, and geohazard prevention and control.
WANG Chenghu, LI Wei
doaj   +1 more source

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