Results 71 to 80 of about 2,923,916 (288)

Surface modification and photosensitisation of TiO2 nanocrystalline films with ascorbic acid

, 2000
International audienceemi-transparent microporous TiO2 films on SnO2-coated conductive glass were prepared by applying a sol–gel process. Surface topography analysis was conducted with atomic force microscopy, which revealed a highly textured and rough ...
Bernard, Marie Claude, Hugot-Le Goff, A, Xagas, A.P, A Hugot-Le Goff, P Falaras, Hugot-Le Goff, Anne, N Spyrellis, Loizos, Z, M.C Bernard, Z Loizos, Spyrellis, N, Xagas, AP, Falaras, P, A.P Xagas, Bernard, MC   +14 more
core   +1 more source

Vascularized Liver‐on‐a‐Microsphere Reveals Alanine‐Glucose Metabolism‐Driven Regulation of Liver Function and Injury

Advanced Science, EarlyView.
A vascularized liver‐on‐a‐microsphere system is developed to recreate lobule‐like cellular organization and endothelial barrier function within compartmentalized hydrogel particles. The platform enhances hepatic performance and reveals alanine‐glucose cycle activation linked to improved detoxification capacity, offering a high‐throughput microscale ...
Jingyang Li, Zengnan Wu, Yingrui Zhang, Shulang Chen, Yongning Lin, Shiyu Chen, Tong Xu, Xianli Meng, Yi Zhang, Jin‐Ming Lin   +9 more
wiley   +1 more source

Cerebral monoamine metabolism in guinea-pigs with ascorbic acid deficiency

, 1975
Guinea-pigs kept on a diet deficient in vitamin C showed, after 3 weeks, a marked decrease of ascorbic acid in brain and blood leucocytes as well as of the activity of alkaline phosphatase in blood plasma.
A Pletscher, A Saner, M da Prada, D Hornig, H Weiser   +4 more
core   +1 more source

ROS‐Targeted Nanomotor Therapy in OA: Cartilage Protection and Pain Relief

Advanced Science, EarlyView.
ROS‐responsive NM@MET nanomotors utilize elevated ROS in osteoarthritic joints to promote deep penetration into cartilage and synovium and enable sustained metformin release. By scavenging ROS, regulating NRF2/KEAP1 signaling, protecting chondrocytes, suppressing synovial inflammation, and attenuating nociceptive signaling, NM@MET alleviates pain and ...
Meng Zheng, Changyu Liu, Qin Xia, Arndt F. Schilling, Jiawei Jiang, Renpeng Peng, Zixing Shu, Tian Ma, Danni Luo, Yaoyu Zhang, Yibo Fan, Xuyuan Zhang, Song Li, Kai Wang, Wentao Ke, Yuan Xiong, Yuanli Zhu, Fangzhi Mou, Jun Xiao, Hao Zhu   +19 more
wiley   +1 more source

High Tree Species Diversity Promotes Thermal Enhancement Response of Microbial Carbon Use Efficiency

Advanced Science, EarlyView.
ABSTRACT Predicting soil carbon dynamics under warming is constrained by limited understanding of microbial thermal adaptation, particularly whether microbial carbon use efficiency (CUE) can adapt to warming and how plant diversity modulates this response. Using soils from a natural tree species diversity gradient in a subtropical forest, we combined a
Pengpeng Duan, Changqing Ye, Xinyi Yang, Chaoqun Wang, Wolfgang Wanek, Jian‐sheng Ye, Hongzhao Yuan, Hu Du, Kongcao Xiao, Xunyang He, Kelin Wang, Dejun Li   +11 more
wiley   +1 more source

Blood levels of vitamin C, carotenoids and retinol are inversely associated with cataract in a north Indian population [PDF]

, 2008
PURPOSE.
Price, Gill M., Young, Ian S, Gupta, Sanjeev K., Murthy, Gudlavalleti V. S., Murthy, Gudlavalleti VS, Chakravarthy, Usha, Maraini, Giovanni, Fletcher, Astrid E, John, Neena, Gupta, Sanjeev K, Dherani, Mukesh, Camparini, Monica, Price, Gill M, Young, Ian S., Fletcher, Astrid E., Young, Ian, Price, G.M., Fletcher, Hugh, Dherani, M., Camparini, M., Murthy, Krishna, John, Dai, Gupta, S.K., Maraini, G.   +23 more
core   +1 more source

Deep Learning Network‐Tailored Microenvironment Matching of 4D Bioprinting Bioactive Scaffolds for Bone Regeneration

Advanced Science, EarlyView.
A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang, Yuechi Zhang, Weifeng Hu, Shiyan Lv, Fan Jia, Yan Zhang, Feng Wu, Changjiang Yang, Guanqi Zhen, Jinglong Yan, Xu Cui, Wei Zhao, Guanghua Chen   +12 more
wiley   +1 more source

ASCORBIC ACID STATUS IN DIFFERENT POPULATION CATEGORIES DURING THE RUSSIAN-UKRAINIAN WAR

Проблеми екології та медицини
Our study aimed to examine the ascorbic acid (AA) status of the Ukrainian population during wartime conditions. Ascorbic acid is one of the most essential vitamins in human nutrition.
N.D. Gerasymenko, Ya.M. Avramenko, O.V. Bielan, A.V. Lavrenko, I.A. Mormol, I.P. Kaidashev   +5 more
doaj   +1 more source

NIR‐II Light‐Triggered Electron Flow Initiates Cuproptosis‐Centered Thermoelectric‐Immunotherapy for Breast Cancer

Advanced Science, EarlyView.
A NIR‐II light‐activatable thermoelectric nanoreactor converts surface‐bound Cu2+ into bioactive Cu+ via directed electron flow. This spatiotemporally controlled reduction triggers potent cuproptosis and immunogenic cell death, eradicating primary tumors and, together with aPD‐1 therapy, suppressing metastases while establishing durable immune memory ...
Boyu Yuan, Qin Fan, Shushu Chu, Shining Yang, Yuechao Yang, Chenxi Zhang, Jinqiao Zhang, Xinran Qu, Yiju Wei, Xin Wang, Ziliang Dong   +10 more
wiley   +1 more source

EpCAM+ Extracellular Vesicle PD‐L1 Dynamics as a Predictive Biomarker of Immune Checkpoint Blockade Response

Advanced Science, EarlyView.
A highly sensitive SERS‐based platform measures PD‐L1 expression on EpCAM+ circulating EVs from cancer patients undergoing immunotherapy. Monitoring dynamic changes after treatment reveals that reduced EpCAM+ EV PD‐L1 levels associate with improved long‐term clinical outcomes, establishing a non‐invasive approach for tracking immune checkpoint ...
Byeonggeol Mun, Jinyoung Kim, Chang Gon Kim, Seokhyeong Go, Mina Han, Yujin Ouck, Soojin Jang, Seong Uk Son, Gamin Kim, Wonrak Son, Eunjung Kim, Min Hee Hong, Ja Hyun Yeo, Eun‐Kyung Lim, Hye Ryun Kim, Seungjoo Haam   +15 more
wiley   +1 more source