Results 21 to 30 of about 1,216,317 (141)

Dual‐Bioactive Lignin‐Based Microcarrier Hydrogel Platform via Metal Salt Crosslinking for Synchronized Infection Eradication and Bone Regeneration

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Infected bone defects represent a dual therapeutic challenge demanding concurrent infection inhibition and osteogenesis promotion. Systemic antibiotic administration is taken as a classical treatment protocol but often yields inadequate local antibiotic concentrations and delayed bone repair.
Xucai Wang   +8 more
wiley   +1 more source

Pinus armandii ectomycorrhizas mobilize aluminium‐bound phosphorus via carboxylates along a subtropical altitudinal gradient

open access: yesJournal of Ecology, Volume 114, Issue 8, August 2026.
Ectomycorrhizal roots of Pinus armandii release more carboxylates than non‐mycorrhizal root segments, mobilizing Al‐bound inorganic P. Under the lowest available P conditions, they also secrete more phosphatase, promoting the mineralization of Al‐bound organic P.
Jun Zhou   +7 more
wiley   +1 more source

Electric Field‐Induced Dark Current Steering in MAPbI3/Nb2CTx Photodetector Toward Weak‐Light Single‐Pixel Imaging

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT In conventional photoconductive detectors, the shared collection path for dark current and photocurrent imposes a fundamental compromise between noise suppression and signal responsivity. To break this trade‐off, we introduce a device architecture featuring a strategically integrated third electrode within a MAPbI3/Nb2CTx heterostructure. This
Yan‐Wei Lv   +7 more
wiley   +1 more source

Multi‐Site Chelation Enabled by 3D‐Printed TiO2 Hydrogel Monoliths for Dynamic Ge(IV) Recovery in Fixed Beds

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo   +6 more
wiley   +1 more source

钙化物对HCl的脱除动力学研究

open access: yes, 2000
采用热重法对氢氧化钙在空气下脱除HCl过程进行了研究,结果表明,钙化物脱氯的最佳温度为600~700℃,钙化物脱氯过程为一级反应,钙化物脱氯的动力学行为可用收缩核模型加以表征,钙化物脱氯的过程存在控制段的转移,反应初期化学反应占主导地位,但随着反应的进行,逐渐受产物层的扩散控制,表面反应活化能及固体扩散活化能分别为58.8kJ/mol及105.73kJ ...
郭小汾, 谢克昌
core   +2 more sources

维持性血液透析患者血清OPN和iPTH水平与血管钙化的相关性研究

open access: yesZhongguo shiyan zhenduanxue, 2021
心血管并发症是维持性血液透析(MHD)患者首要的死亡原因,其血管相关性研究已经成为热点[1-2]。血清骨桥蛋白(OPN)、血清全段甲状旁腺素(iPTH)的变化可能参与了维持性血液透析(MHD)患者的血管钙化发生发展,本研究通过观察血清OPN、iPTH、钙、磷等指标与MHD患者血管钙化程度的关系,旨在探讨MHD患者血管钙化的可能诱发因素,报道如下。
王颜   +8 more
doaj  

La3+ Vacancy Mediated Enhancement of Near‐Infrared Emission in Cr3+‐Activated La2MgTiO6 Phosphors for Multifunctional Applications

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Near‐infrared (NIR) phosphors with broadband and efficient emission are pivotal for the performance of NIR phosphor‐converted light emitting diodes (pc‐LEDs). In this study, the double perovskite phosphor La2MgTiO6:Cr3+ phosphor with broadband emission in the range of 650–950 nm was prepared.
Xu Qian   +7 more
wiley   +1 more source

Efficient Double Perovskite Cs2NaGdCl6: Sb3+/Pr3+ for Plant‐Cultivation Lighting, Advanced Optical Anti‐Counterfeiting, and WLED Applications

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Developing multifunctional luminescent materials with tunable spectra is crucial for plant lighting and information–security applications. To address the critical requirement of plant photosynthesis for blue and red spectral components, a novel lead‐free double perovskite Cs2NaGdCl6: Sb3+, Pr3+ phosphor was designed and synthesized via a ...
Huangyao Chen   +7 more
wiley   +1 more source

稳定型与不稳定型心绞痛患者电子束CT冠状动脉钙化检测的比较

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2001
【目的】比较稳定型心绞痛(SAP)与不稳定型心绞痛(UAP)患者冠状动脉(冠脉)钙化(CAC)的不同模式。【方 法】67 例SAP 与94 例UAP 患者, 行选择性冠脉造影和电子束CT(EBCT)检查, 分析两组CAC 积分(CS)的差异及其与冠脉 狭窄程度之间的关系。【结果】①SAP 组CAC 检测阳性率(100%)显著高于UAP 组(87.23%)(P
杜志民   +6 more
doaj  

Cs2SnI6: A Perovskite‐Based Electromagnetic Wave Absorbing Material

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Lead halide perovskites and carbon‐based materials are interesting, high‐performing electromagnetic wave absorbing materials. However, only a few studies have been carried out to examine in detail the electromagnetic wave absorption properties of these materials.
Fei Han   +11 more
wiley   +1 more source

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