Results 131 to 140 of about 544,006 (376)

Direct Characterization of Bulk Samples by Internal Extractive Electrospray Ionization Mass Spectrometry

Scientific Reports, 2013
A straight-forward analytical strategy called internal extractive electrospray ionization mass spectrometry (iEESI-MS), which combines solvent extraction of chemicals inside a bulk sample with in situ electrospray ionization mass spectrometry, has been ...
Hua Zhang, Haiwei Gu, Feiyan Yan, N. Wang, Yiping Wei, Jianjun Xu, Huanwen Chen   +6 more
semanticscholar   +1 more source

Espectrometria de massas com ionização por "electrospray": processos químicos envolvidos na formação de íons de substâncias orgânicas de baixo peso molecular

Química Nova, 2006
An overview of the current literature on the chemical processes involved in the ion formation from low molecular weight organic compounds by electrospray ionization mass spectrometry is given.
Crotti Antônio Eduardo Miller, Vessecchi Ricardo, Lopes João Luis Callegari, Lopes Norberto Peporine   +3 more
doaj  

Characterization of Anticancer Drug Protomers Using Electrospray Ionization and Ion Mobility Spectrometry–Mass Spectrometry [PDF]

We used electrospray ionization and ion mobility spectrometry–mass spectrometry to detect and characterize the three anticancer drugs palbociclib, copanlisib, and olaparib.
Basuri, Pallab, Kovacevic, Borislav, Pagel, Kevin, Riedel, Jerome, Safferthal, Marc, Schorr, Pascal, Volmer, Dietrich A.   +6 more
core   +1 more source

Quantification of sirolimus by liquid chromatography-tandem mass spectrometry using on-line solid-phase extraction [PDF]

, 2002
Quantification of the new immunosuppressant sirolimus (syn. rapamycin; Rapamune((R))) in whole blood by chromatography is essential for its clinical use since no immunoassay is available although monitoring is mandatory.
Fleischer, Claudia, Groetzner, Jan, Meiser, Bruno, Seidel, Dietrich, Spöhrer, Ute, Vogeser, Michael   +5 more
core   +1 more source

HDAC6 and USP9X Control Glutamine Metabolism by Stabilizing GS to Promote Glioblastoma Tumorigenesis

Advanced Science, EarlyView.
Glioblastoma (GBM) growth relies on glutamine synthetase (GS), which is stabilized by histone deacetylase 6 (HDAC6) and deubiquitinated by ubiquitin‐specific peptidase 9, X‐linked (USP9X). HDAC6 promotes GS deacetylation, while USP9X removes its K48‐linked polyubiquitination, enhancing GS stability.
Go Woon Kim, Minhae Cha, Hien Thi My Ong, Jung Yoo, Yu Hyun Jeon, Sang Wu Lee, Soo Yeon Oh, Min‐Jung Kang, Youngsoo Kim, So Hee Kwon   +9 more
wiley   +1 more source

Structural Plasticity and Noncovalent Substrate Binding in the GroEL Apical Domain. A study using electrospray ionization mass spectrometry and fluorescence binding studies [PDF]

, 2002
Advances in understanding how GroEL binds to non-native proteins are reported. Conformational flexibility in the GroEL apical domain, which could account for the variety of substrates that GroEL binds, is illustrated by comparison of several independent ...
Adams, Boisvert, Braig, Braig, Brinker, Brocchierei, Brunger, Brunger, Buckle, Bukau, Chatellier, Chatellier, Chatellier, Chen, Collaborative Computational Project, N., Coyle, Dessauer, Ewalt, Feltham, Fenton, Ferrige, Grallert, Hartl, Hartl, HayerHartl, Hemmingsen, Hlodan, Houry, Hunt, Hutchinson, Jancarik, Jones, Jones, Kobayashi, Konermann, Kraunsoe, Kusmierczyk, Landry, Landry, Leslie, Loo, Ma, Murshudov, Navaza, Pace, Pflugrath, Ploegman, Raftery, Ranson, Robinson, Romano, Roseman, Rye, Sigler, Smith, Smote, Tanaka, Wang, Weber, Weber, Weissman, Xu, Zahn   +62 more
core   +1 more source

Trimerization of 1,2‐Diaminocyclohexane Catalyzed by a Metal–Organic Cage Tandem Catalyst with Dual Biomimetic Active Sites

Advanced Science, EarlyView.
Dual biomimetic active sites, i.e., mononuclear {ZnII(L)(H2O)} and dinuclear {L2ZnII(CHO2)(OH)ZnIIL2}, have been successfully intergrated into a metal–organic cage, Zn20‐MOC. These two different active sites in Zn20‐MOC catalyze different steps of cascade trimerization of 1,2‐diaminocyclohexane. The mononuclear {ZnII(L)(H2O)} site catalyzes the initial
Xiao‐Jun Chai, Zhu Zhuo, Zi‐Ang Nan, Shiqiang Mu, Zhong‐Yu Peng, Ting Chen, Wei Wang, Li‐Feng Lin, Xi Meng, Mao‐Chun Hong, You‐Gui Huang   +10 more
wiley   +1 more source

Ambient Ionization Mass Spectrometry for Cancer Diagnosis and Surgical Margin Evaluation.

Clinical Chemistry, 2016
BACKGROUND There is a clinical need for new technologies that would enable rapid disease diagnosis based on diagnostic molecular signatures. Ambient ionization mass spectrometry has revolutionized the means by which molecular information can be obtained ...
D. Ifa, L. Eberlin
semanticscholar   +1 more source

Characterization of Cell Glycocalyx with Mass Spectrometry Methods. [PDF]

, 2019
The cell membrane plays an important role in protecting the cell from its extracellular environment. As such, extensive work has been devoted to studying its structure and function.
Lebrilla, Carlito B, Li, Qiongyu, Wong, Maurice, Xie, Yixuan   +3 more
core   +2 more sources

Novel Cyano‐Artemisinin Dimer ZQJ29 Targets PARP1 to Induce Ferroptosis in Pancreatic Cancer Treatment

Advanced Science, EarlyView.
A novel artemisinin derivative dimer has been synthesized, and its significant potential as an anti‐cancer agent. The study indicated that ZQJ29 effectively inhibited the proliferation of pancreatic cancer cells in vitro and in vivo. Additionally, these investigations have unveiled ZQJ29 as a new potent PARP1 inhibitor, with the capability to induce ...
Jianping Chen, Lingyun Yue, Yanna Pan, Bingying Jiang, Junfeng Wan, Haixia Lin, Fujiang Guo, Huiyu Li, Yajuan Li, Qingjie Zhao   +9 more
wiley   +1 more source