Search for effect of longitudinally polarized protons on optically active amino acids
Open accessAbstract
As a test of the Vester-Ulbricht hypothesis that the specific optical activity of contemporary biology arose from a differential action of polarized nuclear particles, DL-leucine has been irradiated with protons of both positive and negative longitudinal polarization. Neither kind of protons caused by measurable decomposition difference in the two optical isomers of the amino acid.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Experimental attempts to validate the Vester-Ulbricht hypothesis only led to poorly conclusive results.
“From the sixties to the eighties, 212-220 many experimental attempts to show the validity of the ''V-U hypothesis'', generally by photolysis of amino acids in the presence of a number of b-emitting radionuclides or through self-irradiation of 14 C-labeled amino acids, only led to poorly conclusive results.”
From Possible chemical and physical scenarios towards biological homochirality (2022) · cites this paper as [220]
Cites
Origin and Role of Optical Isomery in Life
GARAY, A. S. (1968) · Nature · doi:10.1038/219338a0 · Cited by 126 · see citing works
Degradation of DL-leucine with longitudinally polarised electrons
HODGE, L. A., DUNNING, F. B., WALTERS, G. K., WHITE, R. H., & SCHROEPFER, G. J. (1979) · Nature · doi:10.1038/280250a0 · Cited by 48 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Possible chemical and physical scenarios towards biological homochirality
Sallembien, Q., Bouteiller, L., Crassous, J., & Raynal, M. (2022) · Chemical Society Reviews · doi:10.1039/d1cs01179k · Cited by 186 · see citing works
- Authors
- Lemmon, R. M., Conzett, H. E., & Bonner, W. A.
- Affiliations
- Lawrence Berkeley National Laboratory (US)
- Stanford University (US)
- Venue
- Origins of Life
- Published
- 1981-12
- Volume
- 11
- Issue
- 4
- Pages
- 337-341
- ISSN
- 0169-6149 (ISSN-L)
- 0302-1688
- 1573-0875
- OpenAlex
- W2086700205
- Cited by
- 9
- References
- 2
- Citations by year
- 2022: 1
- FWCI
- 2.31
- Type
- journal article
- Language
- en
- Open access
- green
- escholarship.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Origins of Life and Evolution of Biospheres (publishedVersion)
- PubMed (publishedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
- Funders
- U.S. Department of Energy (W-7405, -7405-ENG-48, W‐7405‐ENG‐48)
- National Aeronautics and Space Administration (W-7405-ENG-48)
- Basic Energy Sciences
- SLAC National Accelerator Laboratory
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
- Physical Sciences › Chemistry › Spectroscopy › Molecular spectroscopy and chirality
- Physical Sciences › Chemistry › Spectroscopy › Advanced NMR Techniques and Applications
- Keywords
- amino acids, DL-leucine, proton polarization, enantiomers, amino acid decomposition, origin of homochirality
- MeSH terms
- Chromatography, Gas, Leucine, Protons, Stereoisomerism
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review