Results 91 to 100 of about 529,333 (243)

Implantable Systems for Cardiovascular Treatment and Monitoring: Comparative Insights From Intracardiovascular and Extracardiovascular Technologies

open access: yesAdvanced Intelligent Systems, EarlyView.
A unifying device–cardiovascular interface framework is presented to classify implantable cardiovascular technologies as intracardiovascular blood‐contacting systems or extracardiovascular tissue‐only and blood‐handling architectures. Cross‐class comparison across shared semiquantitative criteria, including blood‐contact burden, biomimicry ...
Bergo Nicolò   +7 more
wiley   +1 more source

Experimental comparison of osseointegration of titanium Grade 4 and hyperelastic titanium alloy Ti-22Nb-6Zr [PDF]

open access: yes, 2019
According to biomechanical studies, a superelastic titanium-nickel alloy of titanium is more favorable as dental implants in comparison with titanium because of its physical and mechanical properties closer to bone tissue. However, the presence of nickel
Ryjova, I. P.   +4 more
core  

Analysis of Salivary Levels of Titanium and Nickel Levels among Patients Treated with Dental Implants Therapy

open access: yesJournal of Pharmacy and Bioallied Sciences
Background: The present investigation aimed to evaluate salivary concentrations of titanium and nickel in individuals subjected to endosseous implant therapy. Materials and Methods: A total cohort of 100 participants was recruited.
Sahil Sarin   +5 more
doaj   +1 more source

Regeneration‐Optimized Chemisorbents: Evaluating Hybrid Coordination Networks for Atmospheric Water Harvesting

open access: yesAngewandte Chemie, EarlyView.
Atmospheric water harvesting (AWH) under arid conditions requires desiccants that load water below 30% RH and regenerate below 60°C, a performance regime traditionally limited to physisorbents. Here, we show that the inherent hydrolytic instability of M′FSIX‐25‐M coordination networks enable regeneration‐optimized chemisorbents (ROCs) with projected ...
Xiang‐Jing Kong   +15 more
wiley   +1 more source

Plasma surface modification of nickel titanium shape memory alloys

open access: yes, 2009
Nickel-titanium (NiTi) shape memory alloys are very potential for surgical implantation due to two unique properties: super-elasticity and shape memory effect. These advantages cannot be seen in current biomedical metallic materials such as medical grade
Wu, SL   +7 more
core   +1 more source

Tackling cancer stemness with nanotechnology in the era of precision medicine

open access: yesBMEMat, EarlyView.
Precise customization of nanoparticles (NPs) enables active targeting of cancer stem cells (CSCs), thereby improving drug delivery and therapeutic efficacy. NP‐based probing enhances CSC detection through imaging and liquid biopsy, whereas diverse therapeutic payloads improve therapeutic outcomes.
Shaolei Guo   +9 more
wiley   +1 more source

A narrow bandgap Schottky heterojunction Fe2N/CeO2 microneedle triggering sonodynamic reactive oxygen species storm for drug‐resistance‐free skin fungal infection

open access: yesBMEMat, EarlyView.
Inorganic sonosensitizers suffer from inefficient electron‐hole separation, rapid recombination, and wide bandgaps in anti‐fungal applications. We propose MN@Fe2N/CeO2 to directly eliminate fungi without drug resistance. Combining semiconductor CeO2's advantages with Fe2N's high work function and activity enables efficient Schottky heterojunctions ...
Li Wang   +13 more
wiley   +1 more source

A biomechanical optimized Zr58Cu25Al14Nb3 bulk metallic glass dental implant improves peri‐implant stress distribution and bone quality under physiological loading

open access: yesBMEMat, EarlyView.
This study reports a novel Zr58Cu25Al14Nb3 bulk metallic glass that possesses high mechanical strength and low elastic modulus, which further promotes efficient mechanotransduction and significantly improves peri‐implant bone quality upon cyclic occlusal loading.
Yunshu Wu   +10 more
wiley   +1 more source

Dynamic properties of nickel-titanium instruments

open access: yes, 2004
Deposited with permission of the author. © 1997 Boonrat Sattapan.Root canal preparation in narrow, curved canals is a challenge even for experienced endodontists.
Sattapan, Boonrat
core   +1 more source

Beyond Compliance: The Role of Climate Policy Stringency and Financial Institutions in Cleantech Startup Entry

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines how environmental regulations can drive technological change, drawing on the innovation systems perspective and the strong Porter hypothesis (SPH). The SPH suggests that well‐designed stringent regulations can foster innovation and enhance firm competitiveness, performance, and survival, yet prior research remains largely ...
Muhammad Zubair Khan   +3 more
wiley   +1 more source

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