Results 121 to 130 of about 104,171 (282)

Carbon isotopes and carbon cycling [PDF]

Nature, 1992
openaire   +1 more source

Fabrication of Superinsulating Poly(Urethane‐Isocyanurate) Aerogels Derived from Upcycled Polycarbonate

Advanced Sustainable Systems, EarlyView.
Bisphenol‐A polycarbonate is upcycled via a simple one‐pot reaction into an aromatic Mannich polyol, which serves as a precursor for fabricating poly(urethane‐isocyanurate) (PUR‐PIR) aerogels. PUR‐PIR aerogels, prepared with different isocyanate indices, exhibit high porosities, high specific surface areas, ultralow thermal conductivity, and excellent ...
Ivona Glišić, Keita Saito, Chang‐lin Wang, Christos Pantazidis, Fabian Eisenreich, Željko Tomović   +5 more
wiley   +1 more source

Authenticity and traceability of vanilla flavors by analysis of stable isotopes of carbon and hydrogen.

Journal of Agricultural and Food Chemistry, 2014
A. M. Hansen, A. Fromberg, H. Frandsen
semanticscholar   +1 more source

Nicotine Reprograms Aging‐Related Metabolism and Protects Against Motor Decline in Mice

Advanced Science, EarlyView.
Long‐term oral nicotine intake protects against age‐related motor decline in mice without eliciting systemic toxicity. Integrated multi‐organ metabolomic profiling and longitudinal gut microbiota analyses reveal that nicotine induces coordinated remodeling of glycolipid and sphingolipid metabolism, enhances NAD⁺ bioavailability, and suppresses ceramide
Shuhui Jia, Xiaoyuan Jing, Ruoxi Wang, Mengke Su, Pei Wang, Yingxin Feng, Xiaohu Ren, Longfang Tu, Ping Wei, Zhen Lu, Yicong Jia, Feng Hong, Zhizhun Mo, Jiemeng Zou, Kang Huang, Caiyun Yan, Qianhui Zou, Liang Wang, Guoping Zhong, Zhi Zeng, Qiuliyang Yu, Wen Su, Xifei Yang, Fan Pan, Jianzhi Wang, Liping Wang, Lijun Kang, Paul J. Kenny, Zuxin Chen, Xin‐an Liu   +29 more
wiley   +1 more source

Homeostasis of Gut Microbiota Protects against Susceptibility to Fungal Pneumonia

Advanced Science, EarlyView.
Fungal pneumonia induces inflammation, shown by heightened IL‐6, IL‐1β, TNF‐α levels and a growth in Staphylococcus in the alveolar flora. The gut microbiota, acting through the gut‐lung axis via blood, impacts fungal pneumonia susceptibility by altering lung metabolism and inflammatory responses.
Jian Ji, Yongli Ye, Jiadi Sun, Lina Sheng, Jinyou Li, Jin Yang, Bing Wu, Yuting Wang, Xingxing Gao, Liang Luo, Jianfeng Ping, Yinzhi Zhang, Xiulan Sun   +12 more
wiley   +1 more source

Strong evidence for terrestrial support of zooplankton in small lakes based on stable isotopes of carbon, nitrogen, and hydrogen

Proceedings of the National Academy of Sciences of the United States of America, 2011
J. Cole, S. Carpenter, J. Kitchell, M. Pace, C. Solomon, B. Weidel   +5 more
semanticscholar   +1 more source

Skullcapflavone II Inhibits SLC1A4‐Mediated L‐Serine Uptake and Promotes Mitochondrial Damage in Gastric Cancer

Advanced Science, EarlyView.
Skullcapflavone II (SkII) significantly alters serine metabolism in gastric cancer cells by directly targeting the L‐serine transporter SLC1A4, thereby inhibiting L‐serine uptake rather than de novo synthesis. This disruption of serine metabolism by SkII leads to increased oxidative stress and consequent mitochondrial damage.
Jing Zhao, Yu‐Bo Ma, Rui‐Hong Xia, Zheng‐Chen Jiang, Ying Zhou, Ya‐Nan Wang, Meng‐Yan Yang, Jing‐Jie Dai, Tao Zhu, Li‐Bin Pan, Li Yuan   +10 more
wiley   +1 more source

Minimally Invasive Chemical Biopsy Needle with Self‐Wettable Extraction Phase For In Vivo Tissue Sampling During Medical Procedures

Advanced Science, EarlyView.
A new tissue sampling device using an acupuncture needle with bio‐compatible extraction sorbents in the recessed section is developed. The coating material using self‐wettable particles doesn't require solvent activation after sterilization. This device is applied for the anti‐cancer drug concentration monitoring during the in vivo lung perfusion ...
Runshan Will Jiang, Wei Zhou, Marcelo Cypel, Todd L. Demmy, Gal Shafirstein, Guillermo Garza, Emily Gawrys, Joanna Bogusiewicz, Barbara Bojko, Janusz Pawliszyn   +9 more
wiley   +1 more source

MicroRNA‐Enriched Plant‐Derived Exosomes Alleviate Colitis by Modulating Systemic Immunity, Metabolic Homeostasis, and Gut Microbiota

Advanced Science, EarlyView.
Herbal medicine, with its multicomponent and multitarget potential, is often studied primarily for traditional forms, especially phytochemicals. Currently, ulcerative colitis lacks natural, low‐toxicity therapies, yet emerging research highlights plant‐derived exosomes as a promising option.
Ruipeng Shi, Wen Tan, Haochun Jin, Sio I Chan, Wei Li, Si San Lei, Guozhen Cui, Yitao Wang, Dong‐Hua Yang, Zhangfeng Zhong   +9 more
wiley   +1 more source

Stable isotopes of carbon and nitrogen help to predict the belowground communities at a regional scale. [PDF]

Sci Rep, 2017
Wang B, Wu Y, Chen D.
europepmc   +1 more source