Results 131 to 140 of about 103,245 (367)

Detection of excited state absorption cross-section of porphyrin through cw and femto-second laser pump-probe technique [PDF]

arXiv, 2019
We report on direct detection of excited states absorption cross-section using dual wavelength pump-probe technique. Also, we experimentally demonstrate using porphyrin composite molecules (porphyrin derivatives such as 5,10,15,20-meso-tetrakis phenyl porphyrin (H2TPP), 5,10,15,20 - meso-tetrakis(4-hydroxyphenyl) porphyrin (H2TPP(OH)4)).
arxiv  

Ammonia Dynamics in the Human Body: Insights in Biomedical Sensing Technologies

Advanced Sensor Research, EarlyView.
Ammonia (NH3) is a significant biomarker in diagnostics, affecting the respiratory system, stomach, liver, kidneys, bladder, and gastrointestinal tract. NH3 detection, using sensors, has the potential to improve medical diagnosis. This review examines recent advancements in NH3 sensing technologies and explores future research directions, including ...
Annelot Nijkoops, Manuela Ciocca, Martina Aurora Costa Angeli, Silvia Pogliaghi, Soufiane Krik, Enrico Avancini, Niko Münzenrieder, Paolo Lugli, Luisa Petti   +8 more
wiley   +1 more source

High‐Sensitivity Dopamine Detection with Copper Terephthalate‐Modified Carbon Electrode

Advanced Sensor Research, EarlyView.
This work introduces a facile synthesis of a copper‐terephthalate with a flake‐like morphology and layered topology. The Cu‐BDC demonstrates exceptional performance as a glassy carbon electrode modifier, enabling highly sensitive and reliable dopamine detection.
Aleksander Ejsmont, Klaudia Bucoń, Teresa Łuczak, Joanna Goscianska   +3 more
wiley   +1 more source

Low‐Irradiance Antimicrobial Blue Light‐Bathing Therapy for Wound Infection Control

Advanced Science, EarlyView.
Antimicrobial blue light has been shown as an appealing non‐pharmacological antimicrobial alternative. However, its clinical applications have been hindered by high irradiance‐associated photothermal risks. In this work, a low‐irradiance blue light‐bathing concept and a wearable photonic wound patch are established to address this challenge in terms of
Jie Hui, Wonjoon Moon, Pu‐Ting Dong, Carolina dos Anjos, Laisa Negri, Hao Yan, Ying Wang, Joshua Tam, Tianhong Dai, R. Rox Anderson, Jeremy Goverman, Jeffrey A. Gelfand, Seok‐Hyun Yun   +12 more
wiley   +1 more source

Cryo‐EM Analysis of a Tri‐Heme Cytochrome‐Associated RC‐LH1 Complex from the Marine Photoheterotrophic Bacterium Dinoroseobacter Shibae

Advanced Science, EarlyView.
Cryo‐EM reveals a closed 17‐subunit LH ring encircling the RC‐LH1 complex in Dinoroseobacter shibae, featuring a novel helix‐turn‐helix subunit bridging RC and LH. Mg2⁺/Ca2⁺ stabilizes the complex, while periplasmic Cyt c₂ mediates electron transfer via a tri‐heme Cyt to the special pair of bacteriochlorophylls. Insights into energy/electron efficiency
Weiwei Wang, Yanting Liu, Jiayi Gu, Shaoya An, Cheng Ma, Haichun Gao, Nianzhi Jiao, Jian‐Ren Shen, John Thomas Beatty, Michal Koblížek, Xing Zhang, Qiang Zheng, Jing‐Hua Chen   +12 more
wiley   +1 more source

A Porphyrin Nanomaterial for Photoimmunotherapy for Treatment of Melanoma

Advanced Science, EarlyView.
The TPC@OVA NPs are developed as dual‐functional nanomaterials combining phototherapy and immunotherapy for melanoma treatment. This system effectively ablates primary tumors, induces immunogenic cell death, promotes dendritic cell maturation, and enhances T cell activation.
Zhuang Fan, Qing Pei, Haojie Sun, Haiyan Zhang, Zhigang Xie, Tao Zhang, Chong Ma   +6 more
wiley   +1 more source

Hierarchical Regulatory Networks Reveal Conserved Drivers of Plant Drought Response at the Cell‐Type Level

Advanced Science, EarlyView.
This study presents a comprehensive multi‐omics framework to uncover cell‐type‐specific regulatory networks in plant drought responses. By integrating transcriptomic, proteomic, and epigenetic data from nearly 30 000 samples, key regulators such as CIPK23 and NLP7 are identified, revealing insights into conserved drought tolerance mechanisms and ...
Moyang Liu, Yuanyuan Xu, Yue Song, Dongying Fan, Junpeng Li, Zhen Zhang, Lujia Wang, Juan He, Cheng Chen, Chao Ma   +9 more
wiley   +1 more source

Electrochemical Generation of Porphyrin-Porphyrin and Porphyrin-C60 Polymeric Photoactive Organic Heterojunctions

Electrochimica Acta, 2014
Abstract Photoactive organic-organic interfaces are formed by electrochemical synthesis. The generation of porphyrin/porphyrin and porphyrin/C60 heterojunctions over indium tin oxide electrodes by successive electropolymerization steps is described. Functionalized C60 buckminsterfullerene holding a carbazol residue and porphyrins containing carbazol ...
Suárez Ramanzin, Maria Belen, Durantni, Javier, Otero, Luis Alberto, Dittrich, Thomas, Santo, Marisa Rosana, Milanesio, María Elisa, Durantini, Edgardo Néstor, Gervaldo, Miguel Andres   +7 more
openaire   +3 more sources

Structural and Biochemical Characterization of a Widespread Enterobacterial Peroxidase Encapsulin

Advanced Science, EarlyView.
Encapsulins are self‐assembling bacterial protein compartments loaded with cargo enzymes. The most abundant encapsulin cargo class are Dye‐decolorizing Peroxidases (DyPs). In this study, we structurally and biochemically characterize a DyP encapsulin found in many enterobacteria.
Natalia C. Ubilla‐Rodriguez, Michael P. Andreas, Tobias W. Giessen   +2 more
wiley   +1 more source

Studies on the biosynthesis of blood pigments. 2. Haem and porphyrin formation in intact chicken erythrocytes [PDF]

, 1956
E. I. B. Dresel, J. E. Falk
openalex   +1 more source