Results 101 to 110 of about 129,557 (299)

Electrochemistry and spectroelectrochemistry of iron porphyrins in the presence of nitrite [PDF]

, 2001
The reaction of nitrite with ferric and ferrous porphyrins was examined using visible, infrared and NMR spectroscopy. Solutions of either ferric or ferrous porphyrin were stable in the presence of nitrite, with only complexation reactions being observed.
Ryan, Michael D., Wei, Zhongcheng
core   +1 more source

Suppressing Metal–Molecule Charge Transfer With a Phosphorus Interlayer

Advanced Materials Interfaces, EarlyView.
Phosphorus forms stable reconstructions with remarkable properties on various metal substrates. Here, using a spectroscopic approach, its role as an effective buffer layer on Cu(110) is demonstrated, preventing charge transfer to adsorbed Zn‐tetraphenylporphyrins (ZnTPP).
Mattia Bassotti, Luca Floreano, Luca Schio, Sergio Salaverria, Dimas G. de Oteyza, Giacomo Giorgi, Frederik Schiller, Alberto Verdini   +7 more
wiley   +1 more source

Radiotherapy Enhancement by Gold Nanocluster‐functionalized Nanoliposomes Using Polychromatic Orthovoltage X‐ray Irradiation

Advanced Materials Interfaces, EarlyView.
Lipid drug carriers to which ultra‐small gold nanoparticles were added enabled more efficient radiotherapy of cultured pancreatic cancer tumors. These nanoparticles boosted radiation‐induced damage to tumors by generating more reactive molecules, though higher gold levels are needed for strong benefits.
Nazareth Milagros Carigga Gutierrez, Eaazhisai Kandiah, Sofia Leo, Erwan Dupont, Fabrizio Johnson‐Corrales, Marc‐André Hograindleur, Sarvenaz Keshmiri, Hélène Elleaume, Benoit Busser, Romain Haudecoeur, Véronique Jacob, Anthony Vella, Véronique Josserand, Maxime Henry, Jean‐Luc Coll, Amandine Hurbin, Xavier Le Guével, Mans Broekgaarden   +17 more
wiley   +1 more source

Probing the origin of fluorescence quenching of a graphene-porphyrin hybrid material

EPJ Web of Conferences, 2013
We report transient absorption spectroscopic studies on the hybrid material composed of porphyrin molecules covalently attached to graphene for investigating the mechanism underlying the reported fluorescence quenching of porphyrin in the hybrid [1 ...
Huijser Annemarie, Herek Jennifer L., Browne Wesley R., Feringa Ben L., Zhang Xiaoyan, Sharma Divya   +5 more
doaj   +1 more source

Do's and Don'ts When Visiting Circularly Polarized Luminescence

Advanced Optical Materials, EarlyView.
This perspective presents our insights into the principles, challenges, and opportunities of circularly polarized luminescence (CPL). Highlighting key concepts such as the dissymmetry factor (glum) and molecular design strategies, we discuss advances in CPL efficiency, emerging NIR emitters, solid‐state applications, and the growing role of theory and ...
Rafael G. Uceda, Sandra Míguez‐Lago, Carlos M. Cruz, Sara P. Morcillo, Luis Álvarez de Cienfuegos, Víctor Blanco, Araceli G. Campaña, Maria Ribagorda, Delia Miguel, Juan M. Cuerva   +9 more
wiley   +1 more source

Phosphine-porphyrin conjugates : a thesis presented in partial fulfilment of the requirements for the degree of Masterate of Science in Chemistry at Massey University, New Zealand [PDF]

, 2000
The research carried out in this thesis comprises an investigation into the synthesis and characterisation of a variety of complexed phosphine-aldehydes, complexed phosphinoporphyrins, and phosphinoferrocene conjugates.
Lun, David James
core  

Thienyl‐Bridged Fused Porphyrin Tapes for Enhanced Heterogeneous Electrocatalytic Activity

ChemElectroChem
The development of highly conjugated metalloporphyrin assemblies is a crucial step to improve their catalytic activity for optimal energy conversion processes.
Hadi Ghahramanzadehasl, Deepak Bansal, Drialys Cardenas Morcoso, Nicolas D. Boscher   +3 more
doaj   +1 more source

Substantially Altered Local and Systemic Immunity in Ischemia‐Free Versus Conventional Liver Transplantation

Advanced Science, EarlyView.
This study investigates how ischemia‐free liver transplantation (IFLT) shapes both local and systemic immune responses compared with conventional liver transplantation (CLT). Our findings demonstrate that IFLT confers significant immunological protection by attenuating the STAT3‐HIF‐1α axis and enhancing the Heme‐HMOX1 pathway, two regulatory networks ...
Tao Luo, Shuai He, Shirui Chen, Dongmei Ye, Shibo Zhang, Di Liu, Dawei Zou, Linhe Wang, Huadi Chen, Jinghong Xu, Huanjie Liu, Ruiting Liu, Xi Tan, Yitong Wang, Jiayi Zeng, Runbing Mo, Yuexin Li, Yuyi Zhang, Tanyiyang Ruan, Tielong Wang, Zehua Jia, Yu Jia, Tongdi Fang, Yimou Lin, Xiaorui Liu, Yunhua Tang, Maogen Chen, Qiang Zhao, Anbin Hu, Weiqiang Ju, Yi Ma, Dongping Wang, Xiaofeng Zhu, Schlegel Andrea, Yuan Zhai, Kwan Man, Tullius G. Stefan, Yifang Gao, Jinxin Bei, Xiaoshun He, Zhiyong Guo   +40 more
wiley   +1 more source

Dynamics of the Mammalian Placental Metabolome in Placentogenesis and Embryonic Development

Advanced Science, EarlyView.
This study identifies three metabolic stages (E8.5, E9.5–10.5, E11.5–14.5) and two transition periods (E8.5–9.5, E10.5–11.5) in mouse placental development. NAD(H) emerges as a key dynamic metabolite that enhances embryonic growth through accelerated segmentation and increased proliferation of mouse embryonic stem cell (mESC)‐induced presomitic ...
Gang Chen, Zichen Liu, Mengyi Wei, Qian Li, Liang Wu, Kunyuan Yu, Yanhong Xu, Dainan Yu, Wenwu Ma, Hongmei Wang, Ng Shyh‐Chang, Jinglei Zhai   +11 more
wiley   +1 more source

The porphyrin metabolism in liver cirrhosis

Терапевтический архив, 2013
AIM: To comparatively study porphyrin metabolic disturbances in liver cirrhosis (LC) of varying etiology and to estimate the diagnostic and prognostic value of the detected disorders/MATERIAL AND METHODS: Seventy-one patients were examined; among them 34,
A B Krivosheev, M A Kondratova, T A Krivosheeva, L Ia Kupriianova, L A Khvan   +4 more
doaj