Results 61 to 70 of about 40,631 (243)

Synthesis and properties of zirconium-based porphyrin metal organic frameworks

上海师范大学学报. 自然科学版
Porphyrins are ubiquitous in nature and are of great interest due to their excellent photophysical and electrochemical properties. However, intrinsic defects of porphyrins, such as instabilities, self-quenching, and poor water solubility, limit its ...
PENG Longxuan, ZHANG Fengjuan, HUANG Yan, CHEN Nan, LYU Min   +4 more
doaj   +1 more source

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 more
wiley   +1 more source

Radical‐Mediated In Situ Fluorescence Dye Deposition: A Simple Interfacial Signal Amplification Reaction for Ultrasensitive Immunoassay on Barcode Beads

Advanced Science, EarlyView.
A radical‐mediated in situ fluorescence dye deposition (RIFD) reaction containing merely three elements of beads, dyes, and radicals is discovered for the first time, and its underlying mechanism is elucidated. This simple RIFD enables the interfacial and ultrafast deposition of free dyes onto barcode beads, serving as a powerful signal amplification ...
Jiayu Zhang, Yao Wang, Xinyi Huang, Haiyu Wu, Qiuning Lin, Hongchen Gu, Li Jiang, Linyong Zhu, Hong Xu   +8 more
wiley   +1 more source

Porphyrins as Theranostic Agents from Prehistoric to Modern Times

Theranostics, 2012
Long before humans roamed the planet, porphyrins in blood were serving not only as indispensable oxygen carriers, but also as the bright red contrast agent that unmistakably indicates injury sites.
Yumiao Zhang, Jonathan F. Lovell
doaj  

Entropy analysis of nickel(II) porphyrins network via curve fitting techniques

Scientific Reports, 2023
Nickel(II) porphyrins typically adopt a square planar coordination geometry, with the nickel atom located at the center of the porphyrin ring and the coordinating atoms arranged in a square plane.
Muhammad Talha Farooq, Thiradet Jiarasuksakun, Pawaton Kaemawichanurat   +2 more
doaj   +1 more source

Structural stabilities of N-permethylated tetracations of meso-tetrakis(4-pyridyl)porphyrin, meso-tetrakis[4-(dimethylamino)phenyl]porphyrin, and their manganese(III) complexes toward hydrogen peroxide, tert-butylhydroperoxide, and sodium hypochlorite

, 2004
WOS: 000228199400003The degradation rate constants of the tetracations 5,10,15,20-tetrakis(N-methylpyridinium-4-yl)porphyrin and 5,10,15,20-tetrakis(N,N,N-trimethylanilinium-4-yl)porphyrin as well as their manganese(III) complexes toward the oxidants ...
Erdem, Murat, Türk, Hayrettin
core   +1 more source

Synthesis, characterization, electrical and dielectric permittivity measurements of 2,9,16,23-tetra(4-ferrocenylimino-3-nitrophenoxy)phthalocyanines [PDF]

, 2006
2,9,16,23-tetra(4-amino-3-nitrophenoxy)phthalocyanines were synthesized from 4-(4-amino-3-nitrophenoxy)phthalonitrile which was obtained from 4-nitro-1,2-dicyanobenzene and 4-amino-3-nitrophenol.

core   +1 more source

Black Hole Quencher‐Enhanced Plasmonic Photothermal Conversion

Advanced Science, EarlyView.
Researchers have developed a universal method to boost plasmonic photothermal conversion by attaching black hole quencher (BHQ) molecules to matched metal nanostructures. This hybrid approach increases efficiency by roughly threefold, reaching up to 69.1% in the near‐infrared‐II window.
Ruiyuan Zhang, Xinru Chen, Lin Shen, Jin Li   +3 more
wiley   +1 more source

Synthesis and properties of novel phthalocvanines and related N-containing macrocycles. [PDF]

, 2007
Phthalocyanines and other closely related compounds are an important class of macrocycles with many commercial applications. They display interesting optoelectronic and coordination properties, which has resulted in their utilisation in a wide range of ...
Barker, Carl A.
core  

Harmonizing Rigidity and Flexibility: Embedding COF Quantum Dots Into Extracellular Matrix Gel as Carbon Monoxide Depot for Acoustically Triggered Time‐Programmable Anti‐Infective Therapy

Advanced Science, EarlyView.
A rigid‑flexible integrated CO depot is engineered by embedding rigid COFQDs into a flexible ECM gel network. The rigid framework enables high‑capacity CO storage and sonodynamic bacterial killing, while the flexible ECM gel controls sustained CO release, collectively eradicating multidrug‑resistant infection and promoting scarless healing.
Baohong Sun, Fang Han, Chunxiao Zhu, Zhiyuan Yang, Haoru Wang, Jinpei Mei, Jie Chen, Jingwen Zhu, Zihan Bo, Taju Wu, Xiaogang Zhou, Tao Ma, Yutian Su, Youhui Lin   +13 more
wiley   +1 more source