نتایج جستجو برای: novel gold iii compound

تعداد نتایج: 1221757  

2001
Hiroyuki Wariishi Michael H. Gold

Lignin peroxidase compound III (LiPIII) was prepared via three procedures: (a) ferrous LiP + O2 (LiPIIIa), (b) ferric LiP + 0; (LiPIIIb), and (c) LiP compound II + excess HzOz followed by treatment with catalase (LiPIIIc). LiPIIIa, h, and c each have a Soret maximum at -414 nm and visible hands at 543 and 578 nm. LiPIIIa, b, and c each slowly reverted to native ferric Lip, releasing stoichiomet...

Journal: :Cancer research 2005
Ying Wang Qing-Yu He Raymond Wai-Yin Sun Chi-Ming Che Jen-Fu Chiu

Apoptosis is a tightly controlled multistep mechanism of cell death, and mitochondria are considered to play a central role in this process. Mitochondria initiate two distinct apoptosis pathways, one caspase-dependent and the other caspase-independent. In addition, mitochondrial production of reactive oxygen species (ROS) seems to play a role in cell death. Most chemotherapeutic agents induce a...

Journal: :Journal of inclusion phenomena and macrocyclic chemistry 2015
Elżbieta Luboch Mirosław Szarmach Anna Buczkowska Ewa Wagner-Wysiecka Magdalena Kania Witold Danikiewicz

The article presents the synthesis of novel 13- and 16-membered azobenzocrown derivatives with peripheral thiol moieties and preliminary studies assessing their possible application in plasmonic sensors based on gold nanoparticles. The effect of the length of the chain connecting the macrocycle with the thiol group and the effect of the presence of the additional functional compound, i.e. lipoi...

2005
Ying Wang Qing-Yu He Raymond Wai-Yin Sun Chi-Ming Che Jen-Fu Chiu

Apoptosis is a tightly controlled multistep mechanism of cell death, and mitochondria are considered to play a central role in this process. Mitochondria initiate two distinct apoptosis pathways, one caspase-dependent and the other caspaseindependent. In addition, mitochondrial production of reactive oxygen species (ROS) seems to play a role in cell death. Most chemotherapeutic agents induce ap...

2015
Dragoş-Adrian Roşca Joseph A. Wright Manfred Bochmann

Gold, the archetypal "noble metal", used to be considered of little interest in catalysis. It is now clear that this was a misconception, and a multitude of gold-catalysed transformations has been reported. However, one consequence of the long-held view of gold as inert metal is that its organometallic chemistry contains many "unknowns", and catalytic cycles devised to explain gold's reactivity...

Journal: :Transactions of the American Mathematical Society 1955

2014
Ningning Liu Xiaofen Li Hongbiao Huang Chong Zhao Siyan Liao Changshan Yang Shouting Liu Wenbin Song Xiaoyu Lu Xiaoying Lan Xin Chen Songgang Yi Li Xu Lili Jiang Canguo Zhao Xiaoxian Dong Ping Zhou Shujue Li Shunqing Wang Xianping Shi Ping Q. Dou Xuejun Wang Jinbao Liu

Proteasomes are attractive emerging targets for anti-cancer therapies. Auranofin (Aur), a gold-containing compound clinically used to treat rheumatic arthritis, was recently approved by US Food and Drug Administration for Phase II clinical trial to treat cancer but its anti-cancer mechanism is poorly understood. Here we report that (i) Aur shows proteasome-inhibitory effect that is comparable t...

Journal: :Dalton transactions 2004
Isabel Garcia Santos Adelheid Hagenbach Ulrich Abram

Novel thiosemicarbazonato complexes of gold(III) have been prepared from reactions of [Au(damp-C1,N)Cl2(damp- = 2-(N,N-dimethylaminomethyl)phenyl) or [NBu4][AuCl4] with 2-pyridineformamide thiosemicarbazones (HL). The thiosemicarbazones deprotonate and coordinate as mononegative, tridentate NNS ligands to gold to give [Au(Hdamp-C1)(L)]Cl2 or [AuCl(L)]Cl complexes. The organometallic damp- ligan...

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