نتایج جستجو برای: iridium nanoparticles

تعداد نتایج: 111183  

2015
Anna Markowska Bartosz Kasprzak Karolina Jaszczyńska-Nowinka Jolanta Lubin Janina Markowska

Worldwide research groups are searching for anticancer compounds, many of them are organometalic complexes having platinum group metals as their active centers. Most commonly used cytostatics from this group are cisplatin, carboplatin and oxaliplatin. Cisplatin was used fot the first time in 1978, from this time many platinum derivatives were created. In this review we present biological proper...

2015
Wen Lv Tianshe Yang Qi Yu Qiang Zhao Kenneth Yin Zhang Hua Liang Shujuan Liu Fuyou Li Wei Huang

Oxygen plays a crucial role in many biological processes. Accurate monitoring of oxygen level is important for diagnosis and treatment of diseases. Autofluorescence is an unavoidable interference in luminescent bioimaging, so that an amount of research work has been devoted to reducing background autofluorescence. Herein, a phosphorescent iridium(III) complex-modified nanoprobe is developed, wh...

Journal: :Chemical science 2015
Kenneth Yin Zhang Jie Zhang Yahong Liu Shujuan Liu Pinglin Zhang Qiang Zhao Yan Tang Wei Huang

We report a ratiometric phosphorescence sensory system for hypochlorite (ClO-) based on core-shell structured silica nanoparticles. Two phosphorescent iridium(iii) complexes were immobilised in the inner solid core and outer mesoporous layer of the nanoparticles, respectively. The former is insensitive to ClO- and thus serves as an internal standard to increase the accuracy and precision, while...

2015
Kenneth Yin Zhang Jie Zhang Yahong Liu Shujuan Liu Pinglin Zhang Qiang Zhao Yan Tang Wei Huang

We report a ratiometric phosphorescence sensory system for hypochlorite (ClO ) based on core–shell structured silica nanoparticles. Two phosphorescent iridium(III) complexes were immobilised in the inner solid core and outer mesoporous layer of the nanoparticles, respectively. The former is insensitive to ClO and thus serves as an internal standard to increase the accuracy and precision, while ...

Journal: :Chemistry 2010
Christian Vollmer Engelbert Redel Khalid Abu-Shandi Ralf Thomann Haresh Manyar Christopher Hardacre Christoph Janiak

Stable chromium, molybdenum, tungsten, manganese, rhenium, ruthenium, osmium, cobalt, rhodium, and iridium metal nanoparticles (M-NPs) have been reproducibly obtained by facile, rapid (3 min), and energy-saving 10 W microwave irradiation (MWI) under an argon atmosphere from their metal-carbonyl precursors [M(x)(CO)(y)] in the ionic liquid (IL) 1-butyl-3-methylimidazolium tetrafluoroborate ([BMI...

Journal: :Dalton transactions 2011
Huazhou Wu Tianshe Yang Qiang Zhao Jing Zhou Chunyan Li Fuyou Li

Iridium(III) complexes with intense phosphorescence in solution have been widely applied in organic light-emitting diodes, chemosensors and bioimaging. However, little attention has been paid to iridium(III) complexes showing weak phosphorescence in solution and enhanced phosphorescence emission in the solid state (EPESS). In the present study, two β-diketonate ligands with different degrees of...

Journal: :Inorganic chemistry 2016
Aaron J Bloomfield Adam J Matula Brandon Q Mercado Victor S Batista Robert H Crabtree

A pentamethylcyclopentadienyl-iridium complex containing a tricyclic, dianionic, tridentate, scorpionate (facial binding), mixed organic-inorganic ligand was synthesized and characterized by single-crystal X-ray crystallography, as well as polynuclear NMR, UV-vis, and IR spectroscopies. The central cycle of the tridentate ligand consists of a modified boroxine in which two of the boron centers ...

Journal: :Journal of The Japan Petroleum Institute 2021

Anion exchange membrane fuel cells (AEMFCs) are important alternatives to proton (PEMFCs). However, AEMFCs involve slow hydrogen oxidation reaction (HOR) on the anode. Catalysts improve HOR were developed by control of ruthenium nanoparticle size, alloying with iridium, and surface modification metal nanoparticles, resulting in enhanced catalytic activity optimizing binding energy bifunctionali...

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