Results 71 to 80 of about 16,770 (249)

Syntheses of the enantiopure quinones A and A' and their C-1 epimers

, 2002
The 3,4-dihydro-1H-naphtho[2,3-c]pyran ring system is found in many natural products as the 5,10- or 6,9-quinones. These compounds have been synthesized by various research groups as a result of their wide range of biological activities.
Oosthuizen, Francois Jacobus
core  

Biomimetic Polymerization of Tellurocysteine: Breaking the Natural Amino Acid Radioprotection Limitation

Advanced Science, EarlyView.
Inspired by natural amino acid polymer‐melanin systems, this study strategically incorporated tellurocysteine to develop advanced radiation‐shielding materials. This approach transformed the primary interaction mechanism between melanin‐based materials and incident photons from Compton scattering to the photoelectric effect. Tellurocysteine‐polymerized
Wei Chen, Hanjie Zhu, Yue Zhang, Yuqing Qiao, Ruotong Deng, Huaping Xu, Wei Cao   +6 more
wiley   +1 more source

Mrs. Antonio Quinones, age 80, married to Mr. Antonio Quinones of Edna, Texas.

, 1973
Mrs. Antonio Quinones, age 80, married to Mr.

core  

Studies on quinones. Part 38: Synthesis and leishmanicidal activity of sesquiterpene 1,4-quinones [PDF]

, 2003
The reaction of (+)-euryfuran 1 with several benzo-, naphtho- and benzo[b]thiophene-1,4-quinones in acetic acid yields the corresponding euryfuryl-1.4-quinones 3, 5, 7, 8, 10, 12, and 14.
Prina, Eric, Valderrama, JA, Cortes, M, Cortés, Manuel, Benites, J, Fournet, Alain, Benites, Julio, Pessoa Mahana, Hernán, Pessoa Mahana, H, Prina, E, Fournet, A, Valderrama, Jaime A.   +11 more
core   +1 more source

Bioenergetics theory and components: Quinones

, 2021
The reversible oxidation of dihydroxy arenes to the respective quinones is a two-electron process with the intermediate formation of the radical form of semiquinones.
Genova M. L., Lenaz G.
core   +1 more source

Bioadhesive Hydrogel With Polyphenol‐Armored Nanogene Rejuvenates Chondrocyte Senescence for Aged Osteoarthritis Therapy

Advanced Science, EarlyView.
An adhesive hydrogel depot with polyphenol‐armored nanogenes is developed for treating aged osteoarthritis. This system maintains miR‐140 bioactivity, prolongs its intra‐articular retention, and enhances transfection into chondrocytes, leading to the downregulation of senescence‐associated pathways.
Liwei Yan, Runze Yang, Ting Zhou, Tianhao Xu, Yongqi Li, Yuelin Hu, Minghao Ge, Lei Zhang, Xiong Lu, Chaoming Xie, Weili Fu   +10 more
wiley   +1 more source

Mezcla

, 2021
Modern-day colonialism negatively impacts marginalized Americans on a daily basis. Beyond the emotional detriments caused by microaggressions and stereotyping, systems of oppression create unequal access and opportunities for those who fall outside the ...
Quinones, Liz
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Tyrosinase Driven‐Intracellular Polymerization of a Porphyrin Derivative Induced Immunogenic Death of Melanoma Cells and Strengthened Photodynamic Therapy

Advanced Science, EarlyView.
This study uses tyrosinase, which is highly expressed in melanoma, to drive porphyrins to polymerize and self‐assemble within tumor cells to form retented microstructures. This process induces immunogenic death and activates immune responses (M1 macrophages, dendritic cells, CD8+T cells), turning “cold” tumors into “hot” tumors.
Mian Tang, Junteng Qiu, Yunfeng Lu, Yahui Song, Xinyu Zhou, Tianshun Duan, Xuanqi Peng, Caixia Yin, Cheng Gao, Ruibing Wang   +9 more
wiley   +1 more source

The oldest members of the American G.I. Forum from Edna, Texas. Mr. Antonio Quinones (104 years old) and Mrs. Quinones (84 years old) (photograph)

, 1973
The oldest members of the American G.I. Forum from Edna, Texas. Mr. Antonio Quinones (104 years old) and Mrs. Quinones (84 years old)

core  

Simultaneous Wastewater‐to‐Hydrogen Upgrading via Mechanically Driven Piezocatalysis Over Ag‐ZnO Nanorods

Advanced Science, EarlyView.
A piezocatalytic strategy enables simultaneous wastewater purification and hydrogen generation by harnessing mechanical energy. Complementary piezo‐induced charges are selectively directed toward oxidation and reduction pathways, achieving efficient pollutant degradation and continuous H2 evolution.
Yiqing Wei, Jianghai Huang, Yejunchi Zhang, Yang Wang, Dongmei Li, Chaogang Ban, Peng Yu, Jiangping Ma, Zhenxiang Cheng   +8 more
wiley   +1 more source