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Paul A. Keifer
Researcher at Varian, Inc.
Publications - 54
Citations - 5457
Paul A. Keifer is an academic researcher from Varian, Inc.. The author has contributed to research in topics: Nuclear magnetic resonance spectroscopy & Proton NMR. The author has an hindex of 23, co-authored 54 publications receiving 5287 citations. Previous affiliations of Paul A. Keifer include University of Nebraska Medical Center & Eppley Institute for Research in Cancer and Allied Diseases.
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Pure absorption gradient enhanced heteronuclear single quantum correlation spectroscopy with improved sensitivity
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WET Solvent Suppression and Its Applications to LC NMR and High-Resolution NMR Spectroscopy
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Ecteinascidins 729, 743, 745, 759A, 759B, and 770: potent antitumor agents from the Caribbean tunicate Ecteinascidia turbinata
Kenneth L. Rinehart,Tom G. Holt,N. L. Fregeau,Justin G. Stroh,Paul A. Keifer,Furong Sun,Li H. Li,David G. Martin +7 more
TL;DR: Ecteinascidins 729, 743, 745, 759A,759B, and 770, tris(tetrahydroisoquinolines) with potent in vivo antitumor activity, have been isolated from the colonial tunicate EctEinascidia turbinata, and their structures have been assigned.
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Polymer micelle with cross-linked ionic core.
TL;DR: The design of polymer micelles with cross-linked ionic cores that display high stability are reported, which represent hydrophilic nanospheres of core-shell morphology.
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Seaweed resistance to microbial attack: A targeted chemical defense against marine fungi
Julia Kubanek,Paul R. Jensen,Paul A. Keifer,M. Cameron Sullards,Dwight O. Collins,William Fenical +5 more
TL;DR: It is suggested that seaweeds use targeted antimicrobial chemical defense strategies and that secondary metabolites important in the ecological interactions between marine macroorganisms and microorganisms could be a promising source of novel bioactive compounds.