Results 181 to 190 of about 175,207 (387)

TLC of Porphyrins [PDF]

Clinical Chemistry, 1972
openaire   +2 more sources

A pH‐Sensitive Nanosized Covalent–Organic Polymer for Enhanced Tumor Photodynamic Immunotherapy by Hypoxia Relief and STAT3 Inhibition

Advanced Science, EarlyView.
The nanosized covalent organic polymer composed of photosensitizer porphyrin, pyruvate kinase inhibitor vitamin K3, and STAT3 inhibitor WP1066 is prepared for enhanced photodynamic immunotherapy by simultaneous hypoxia relief and STAT3 inhibition. Abstract Photodynamic therapy (PDT) is a promising cancer therapy modality by generating reactive oxygen ...
Lei Lei, Wenbin Dai, Jinchao Zhao, Angfeng Jiang, Haisheng Peng, Qiao Jin, Xiaojing Li, Zhe Tang   +7 more
wiley   +1 more source

The Enzymatic Synthesis of Porphyrins from Porphobilinogen

, 1958
Lawrence Bogorad
openalex   +1 more source

Exploration of Oxygen Reduction Reaction Catalyzed by FePPc and Pz‐FeTPr Conjugated Organic Polymer: Insights From Grand‐Canonical Density Functional Theory

Advanced Science, EarlyView.
At alkaline conditions (pH = 13), for FePPc and Pz‐FeTPr at low potential (less than 0.5 V), the ORR mechanism is the *O2 mechanism (O2→∗O2→∗OOH→∗O→∗OH→H2O${{\rm{O}}_2} \to ^*{O_2} \to ^*OOH \to ^*O \to ^*OH \to {H_2}O$), Fe is the active site; for Pz‐FeTPr at high potential (larger than 0.5 V), the Fe site is covered by O2−$O_2^ - $, the nearby C site
Pengfei Yuan, Chong Li, Jianan Zhang, Fei Wang, Ying Zhao, Xuebo Chen   +5 more
wiley   +1 more source

Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction

Advanced Science, EarlyView.
The encapsulation of C70 into COF has improved the efficiency of photocatalytic CO2 reduction significantly. The introduction of C70 drives multistep charge transfer and forms a long‐lived charge‐separated state. It also thermodynamically lowers the energy barrier of the rate‐determining step.
Ying Jiang, Chong Wang, Tianyang Dong, Yupeng Song, Tao Wang, Haibing Che, Hua Sheng, Bo Wu, Chunru Wang   +8 more
wiley   +1 more source

PORPHYRIN FORMATION AND HEMOGLOBIN METABOLISM IN CONGENITAL PORPHYRIA

, 1950
Irving M. London, Randolph West, David Shemin, D. Rittenberg   +3 more
openalex   +1 more source

Porphyrin Excretion following Antipyretics [PDF]

, 1939
George G. Brownlee
openalex   +1 more source

Biomimetic Analysis of Neurotransmitters for Disease Diagnosis through Light‐Driven Nanozyme Sensor Array and Machine Learning

Advanced Science, EarlyView.
A novel photoresponsive nanozyme sensor array, combining metal‐organic frameworks (MOFs) with advanced machine learning algorithms, provides a breakthrough in rapid neurotransmitter detection and disease diagnostics. This sensor array is capable of accurately identifying neurotransmitter profiles associated with neurological disorders, offering ...
Kun Yu, Siyuan Lu, Kaiwen Qiu, Yuanzun Zhang, Aobing Sun, Shiqi Gong, Kai Wang, Xuzhu Gao, Xiangyu Xu, Hao Wang   +9 more
wiley   +1 more source

Electron spin polarization in the triplet state of methoxy-substituted phosphorus(V) tetraphenyl porphyrins

Journal of Magnetic Resonance Open
Photoexcited triplet states of porphyrins are of great relevance in various applications due to their high yield, long lifetime, and strong electron spin polarization.
D. Panariti, B.J. Bayard, A. Barbon, Y.E. Kandrashkin, P.K. Poddutoori, A. van der Est, M. Di Valentin   +6 more
doaj  

Stereochemistry and chiroptic properties of pheophorbides and related compounds [PDF]

, 1973
Scheer, Hugo, Wolf, H.
core   +1 more source