Results 51 to 60 of about 10,603 (209)

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng, Zhicheng Wang, Xin Zhou, Shuya Wang, Xiaojing Shi, Tingli Xiong, Ruishi Li, Yuting Lin, Zhen Chen, Jiawen Wei, Fei Li, Jinwen Ge, Kelong Ai, Chong Liu, Guiming Deng   +14 more
wiley   +1 more source

Vertical multilayer structures based on porous silicon layers for mid-infrared applications

, 2020
International audienceIn this work, the fabrication of a porous silicon Bragg reflector and vertical cavity on P+ silicon substrate is investigated for applications in spectroscopic sensing in the mid-infrared (Mid-IR) wavelength range.
Thomy, V., Charrier, Joël, Lorrain, Nathalie, Pirasteh, Parastesh, Meziani, Sofiane, Raiah, Warda, Coffinier, Yannick, Bodiou, Loïc, Duris, Maxime, Guendouz, Mohammed, Guendouz, Mohamed   +10 more
core   +1 more source

Emerald eco-synthesis: harnessing oleander for green silver nanoparticle production and advancing photocatalytic MB degradation with TiO2&CuO nanocomposite

Scientific Reports
The tertiary composite of TiO2/CuO @ Ag (TCA) were synthesized by the solid state method using different ratios of TiO2/CuO NCs and Ag NPs. The structural, morphological, and optical properties of nanocomposites were analyzed by scanning electron ...
Amira M. Shawky, Rania Elshypany, Heba M. El Sharkawy, Mahmoud F. Mubarak, Hanaa Selim   +4 more
doaj   +1 more source

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

Advanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib, Shan Jiang, Joyce ZX Lee, CW Lim, HL Yeung, Nicki YH Leung, Patrick SC Leung, Ting F Leung, Christine YY Wai   +8 more
wiley   +1 more source

The IR spectrophotometry applications in the study of physical and chemical compatibility of some active substances [PDF]

, 2014
Department of Pharmaceutical and Toxicological chemistry, State Medical and Pharmaceutical University „Nicolae Testemitanu”, Chisinau, Republic of MoldovaIntroduction: The qualitative aspects of infrared spectroscopy are one of the most powerful ...
Gorodețchi, Ecaterina, Donici, Elena
core  

Transmission enhancement through square coaxial apertures arrays in metallic film: when leaky modes filter infrared light

, 2014
We consider arrays of square coaxial apertures in a gold layer and study their diffractive behavior in the far infrared region. These structures exhibit a resonant transmission enhancement that is used to design tunable bandpass filters.
Nicolet, André, Vial, B., Zolla, F., Frédéric, Bedu, Commandré, Mireille, Stéphane, Tisserand, Tisserand, S., Bedu, Frédéric, Demesy, G., Nicolet, A., Tisserand, Stéphane, Hervé, Dallaporta, Vial, Benjamin, Dallaporta, Hervé, Demésy, Guillaume, Dallaporta, H., Commandré, M., Zolla, Frédéric, Roux, Laurent, Bedu, F., Roux, L.   +20 more
core   +1 more source

Evaluation of pH and Optical Properties of Dual Rinse HEDP Irrigating Solution

Applied Sciences
This study investigates the pH values and optical characteristics of Dual Rinse HEDP, either independently or combined with sodium hypochlorite (NaOCl), and compares them to other irrigants used in endodontics.
Andjelka Simic, Mirjana V. Papic, Ana Nikitovic, Aleksandar Kocovic, Renata Petrovic, Irena Melih, Suzana Zivanovic, Milos Papic, Milica Popovic   +8 more
doaj   +1 more source

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

Quantitative analysis of hemoglobin oxygenation state of rat brain in situ by near-infrared spectrophotometry

, 1988
The light in the near-infrared region (700–900 nm) was illuminated on the rat head, and absorption spectra were measured with the transmitted light under various conditions.
M. Tamura, O. Hazeki
core   +1 more source

Nano‐Backpack Engineered Probiotics with Reactive Oxygen Species–Responsive Tungsten Release for Synergistic Therapy of Inflammatory Bowel Disease

Advanced Science, EarlyView.
An integrated probiotic system is engineered to execute a programmed therapeutic cascade against inflammatory bowel disease. Upon pathological signals, the system sequentially performs ROS scavenging, tungsten release, and selective pathogen suppression, thereby breaking the oxidative stress–dysbiosis cycle to remodel gut microbiota and reinforce ...
Yang Yang, Liucan Wang, Guoqing Chen, Yuanling Zhang, Jiarui Shi, Wenzhe Fan, Min Yu, Jixi Zhang, Hua Yang   +8 more
wiley   +1 more source