Jon M. Goetz
Washington University in St. Louis
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Publication
Featured researches published by Jon M. Goetz.
Biophysical Journal | 1998
April H. Baugher; Jon M. Goetz; Lynda M. McDowell; Haiyong Huang; Karen L. Wooley; Jacob Schaefer
Rotational-echo double-resonance (REDOR) 13C NMR spectra (with 19F dephasing) have been obtained of 6-fluorotryptophan complexed by a polymeric amphiphilic nanosphere consisting of a polystyrene core covalently attached to a poly(acrylic acid)-polyacrylamide shell. The REDOR spectra show that aromatic carbons from the polystyrene core and oxygenated carbons in the poly(acrylic acid)-polyacrylamide shell are both proximate to the 19F of 6-fluorotryptophan. Molecular modeling restrained by distances inferred from the REDOR spectra suggests that all of the 6-fluorotryptophans are in the shell but within 10 A of the core-shell interface.
Solid State Nuclear Magnetic Resonance | 1998
Jon M. Goetz; Jin H Wu; Albert F. Yee; Jacob Schaefer
A two-dimensional version of the transferred-echo double resonance (TEDOR) experiment is introduced to measure strong heteronuclear magnetic dipolar interactions between rare spins. A quantitative description of this 2D-TEDOR experiment is given for an I-S pair of spins undergoing relative motion. 2D-TEDOR calculations are consistent with data for a calibration model: the directly bound 13C-31P pair in [3-13C]glyphosate, HO31(3)P13CH2NHCH2COOH. Analysis shows that the indirect spin-spin interaction and the dipole-dipole interaction have opposite signs in this system. The 2D-TEDOR experiment is then used to measure heteronuclear 13C-19F interactions in a fluorinated polycarbonate in which an aromatic proton is replaced by a fluorine on every fourth ring. Results from the 2D-TEDOR experiment show that the aromatic ring flips that occur in ordinary polycarbonate are blocked for a fluorinated ring.
Journal of Magnetic Resonance | 1997
Jon M. Goetz; Jacob Schaefer
Macromolecules | 1998
Lisa P. Chen; Albert F. Yee; Jon M. Goetz; Jacob Schaefer
Journal of Magnetic Resonance | 1997
Jon M. Goetz; Jacob Schaefer
Macromolecules | 1998
Matthew Merritt; Jon M. Goetz; Duane Whitney; † Chang-Po Paul Chang; Laurent Heux; and Jean Louis Halary; Jacob Schaefer
Macromolecules | 1997
April H. Baugher; Matt P. Espe; Jon M. Goetz; Jacob Schaefer; Ruth H. Pater
Macromolecules | 1998
Joel R. Garbow; Jon M. Goetz; Jawed Asrar
Macromolecules | 2002
Robert D. O'Connor; Barbara Poliks; Daniel H. Bolton; Jon M. Goetz; Jeffery A. Byers; and Karen L. Wooley; Jacob Schaefer
Macromolecules | 2000
Jinhuang Wu; Chaodong Xiao; Albert F. Yee; Jon M. Goetz; Jacob Schaefer