Results 31 to 40 of about 4,898 (179)

Identification of hazardous nanoparticles present in the Caribbean Sea for the allocation of future preservation projects [PDF]

, 2023
The deposition of remaining nanoparticles in the Caribbean Sea generates the formation of potentially dangerous elements, which influence at the imbalance of ecosystems.
Gonçalves, Janaína, Silva Oliveira, Luis Felipe, Neckel, Alcindo, Silva Oliveira, Marcos Leandro, Lozano, Liliana P., Oliveira, Marcos, da Boit, Kátia   +6 more
core   +1 more source

Oxygen Vacancy‐Enriched Platinum Single‐Atom Nanozyme Wrapped in Nanoislands: Unlocking Catalytic Activity and Reprogramming Redox Microenvironment for Osteonecrosis Repair

Advanced Science, EarlyView.
CeO2‐x/Pt single‐atom nano‐island is constructed via low‐temperature reduction, featuring abundant oxygen vacancies and an island–sea structure. It delivers outstanding multi‐enzyme‐mimetic activity and ROS‐scavenging efficiency. Density functional theory reveals optimized electronic structures and reaction pathways.
Yang Zhu, Zehui Lv, Xuejie Cai, Penghui Wei, Dengliang Wang, Zhao Wang, Ruoying Wang, Yingjie Wang, Xingdong Yang, Yixin Bian, Jiawei Xu, Xisheng Weng, Liangfeng Wei   +12 more
wiley   +1 more source

Not all that glitters is gold - Electron microscopy study on uptake of gold nanoparticles in Daphnia magna and related artefacts [PDF]

, 2017
Increasing use of engineered nanoparticles has led to extensive research into their potential hazards to the environment and human health. Cellular uptake from the gut is sparsely investigated and microscopy techniques applied for uptake studies can ...
Sara Nørgaard Sørensen, Mølhave, Kristian, Jensen, Louise Helene Søgaard, Thit, Amalie, Carsten Købler, Jensen, Amalie Thit, Anders Baun, Baun, Anders, Louise Helene Søgaard Jensen, Skjolding, Lars Michael, Lars Michael Skjolding, Sørensen, Sara Nørgaard, Amalie Thit, Kristian Mølhave, Købler, Carsten   +14 more
core   +1 more source

Engineered Exosomal miR‐146a‐5p Reprograms BMSC Fate and Restores Mitochondrial Homeostasis in Glucocorticoid‐Induced Osteonecrosis of Femoral Head

Advanced Science, EarlyView.
Exosomal miR‐146a‐5p is identified as a pivotal regulator in steroid‐induced osteonecrosis. Its reduction activates NF‐κB signaling, compromises mitophagy, and disrupts mitochondrial bioenergetics, resulting in autophagic disequilibrium. Engineered exosomes delivering miR‐146a‐5p reinstate mitochondrial function, augment oxidative phosphorylation and ...
Zehui Lv, Xuejie Cai, Yiming Xu, Xingdong Yang, Ruoying Wang, Han Wang, Yixin Bian, Jiawei Xu, Jiao Lu, Lulu Liu, Yingjie Wang, Jibin Song, Bin Feng, Xisheng Weng   +13 more
wiley   +1 more source

Microwave Irradiation for the Facile Synthesis of Transition-Metal Nanoparticles (NPs) in Ionic Liquids (ILs) from Metal-Carbonyl Precursors and Ru-, Rh-, and Ir-NP/IL Dispersions as Biphasic Liquid-Liquid Hydrogenation Nanocatalysts for Cyclohexene [PDF]

, 2010
Stable chromium, molybdenum, tungsten, manganese, rhenium, ruthenium, osmium, cobalt, rhodium, and iridium metal nanoparticles (MNPs) have been reproducibly obtained by facile, rapid (3 min), and energysaving 10 W microwave irradiation (MWI) under an ...
Abu-Shandi, Khalid, Redel, Engelbert, Hardacre, Christopher; id_orcid, Janiak, Christoph, Vollmer, Christian, Hardacre, Christopher, Thomann, Ralf, Manyar, Haresh, Abu-Shandi, Khalid Hamad   +8 more
core   +1 more source

Radiation‐Induced Tumor‐Intrinsic LTβR N‐Glycosylation Suppresses Pyroptosis Through TRIM28‐Mediated PCBP2 SUMOylation to Promote Gastric Cancer Radioresistance

Advanced Science, EarlyView.
Radiotherapy triggers LTβR N‐glycosylation, enhancing its overall protein stability and nuclear retention. This accumulation drives TRIM28‐mediated PCBP2 SUMOylation, suppressing pyroptosis and conferring gastric cancer radioresistance. Therapeutically, a targeted nanoplatform (cRGD‐Lipo@EMD) effectively disrupts this regulatory axis, offering a highly
Weijie Zang, Yunlong Ji, Chunwang Zhou, Xiwen Li, Zhuang Lu, Guangze Zhang, Yu Chen, Wanjiang Xue, Yilin Hu   +8 more
wiley   +1 more source

Fully Enzymatic Membraneless Glucose|Oxygen Fuel Cell That Provides 0.275 mA cm-?2 in 5 mM Glucose, Operates in Human Physiological Solutions, and Powers Transmission of Sensing Data [PDF]

, 2016
Coimmobilization of pyranose dehydrogenase as an enzyme catalyst, osmium redox polymers [Os(4,​4'-​dimethoxy-​2,​2'-​bipyridine)​2(poly(vinylimidazole)​)​10Cl]​+ or [Os(4,​4'-​dimethyl-​2,​2'-​bipyridine)​2(poly(vinylimidazole)​)​10Cl]​+ as mediators ...
Maria E. Yakovleva (1301283), Peterbauer, Clemens, Gonaus, Christoph, Magnus Falk (643494), Dónal Leech (1301280), Lo Gorton (643497), O'Conghaile, Peter, MacAodha, Domhnall, Leech, Donal, Peter Ó Conghaile (1405429), Gorton, Lo, Sergey Shleev (643519), Domhnall MacAodha (1301298), Shleev, Sergey, Clemens K. Peterbauer (104841), Christoph Gonaus (1301292), Yakovleva, Maria, Falk, Magnus   +17 more
core   +1 more source

Biomimetic Macrophage Cell Membrane‐Based Nanoparticles for Effective Treatment of Glioblastoma Through Boron Neutron Capture Therapy Combined With Immunotherapy

Advanced Science, EarlyView.
ABSTRACT Glioblastoma multiforme (GBM) remains largely incurable due to the blood‐brain barrier (BBB) and immunosuppressive microenvironment. While boron neutron capture therapy (BNCT) selectively eradicates tumor cells via 10B(n, α)‐7Li reactions, its clinical potential in GBM is unrealized because of the suboptimal pharmacokinetics of conventional ...
Jiawen Chen, Haoyu You, Hefa Huang, Huihui Chai, Ruize Zhu, Yun Guan, Qisheng Tang, Tianwen Li, Shan Jiang, Houshi Xu, Peng Wang, Yue Wang, Maoyuan Sun, Beining Liu, Zhen Li, Yulai Zeng, Weiqiu Ping, Yanlin Teng, Songlin Yan, Qinghui Li, Long Gu, Tao Sun, Zhifeng Shi   +22 more
wiley   +1 more source

Electrochemical Method for Detecting Hippuric Acid Using Osmium-antigen Conjugate on the Gold Nanoparticles Modified Screen-printed Carbon Electrodes [PDF]

Journal of Electrochemical Science and Technology, 2011
This paper describes an electrochemical immunoassay for simple, fast and quantitative detection of a urinary hippuric acid which is one of major biological indicator in toluene-exposed humans. The electrochemical system of immunoassay was based on the directly osmium complex conjugated with hippuric acid. With the competition between free hippuric acid
Young-Bong Choi, Hyug-Han Kim
openaire   +2 more sources

Multi‐Component Functionalized Bifidobacterium Longum Hydrogel for Multi‐Target Integrated Therapy of Colitis‐Associated Anxiety and Depression

Advanced Science, EarlyView.
A pH/MMP dual‐responsive Bifidobacterium longum (BL) hydrogel (INPs@BL@Gel) functionalized with baicalin, tyrosine, and inulin is constructed. It enables gastric protection, inflammation‐targeted release, and prolonged intestinal colonization. By remodeling gut microbiota, elevating beneficial neuroactive metabolites (homovanillic acid, short‐chain ...
Shuo Zhang, Yujie Zhang, Jiansheng He, Shunlian Li, Qingyan Ma, Qiao Li, Yudan Zhang, Yiyang Wang, Shaobo Ma, Songyan Jin, Chune Li, Xueyong Xie, Hang Zhang, Junze Deng, Xueqin Song, Daocheng Wu, Xiancang Ma, Feng Zhu   +17 more
wiley   +1 more source