| Literature DB >> 19130513 |
Donghua H Zhou1, Gautam Shah, Charles Mullen, Dennis Sandoz, Chad M Rienstra.
Abstract
The natural way: A sensitive NMR spectroscopic method is developed to obtain well-resolved two-dimensional spectra ((15)N-(1)H and (13)C-(1)H) for natural-abundance (that is, without the need for isotopic enrichment) large-molecule samples, such as biopharmaceuticals. This method gives structural insights on two lyophilized aprotinin samples and three insulin samples in lyophilized, microcrystalline suspension formulation (red; see picture) and fibril (green) forms.Entities:
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Year: 2009 PMID: 19130513 PMCID: PMC2811381 DOI: 10.1002/anie.200801029
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN: 1433-7851 Impact factor: 15.336