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Coacervate-like microspheres from lysine-rich proteinoidMicrospheres form isothermally from lysine-rich proteinoid when the ionic strength of the solution is increased with NaCl or other salts. Studies with different monovalent anions and with polymers of different amino acid composition indicate that charge neutralization and hydrophobic bonding contribute to microsphere formation. The particles also form in sea water, especially if heated or made slightly alkaline. The microspheres differ from those made from acidic proteinoid but resemble coacervate droplets in some ways (isothermal formation, limited stability, stabilization by quinone, uptake of dyes). Because the constituent lysine-rich proteinoid is of simulated prebiotic origin, the study is interpreted to add emphasis to and suggest an evolutionary continuity for coacervation phenomena.
Document ID
19750035227
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rohlfing, D. L.
(South Carolina, University Columbia, S.C., United States)
Date Acquired
August 8, 2013
Publication Date
April 1, 1975
Subject Category
Life Sciences (General)
Accession Number
75A19299
Funding Number(s)
CONTRACT_GRANT: NGR-41-002-034
Distribution Limits
Public
Copyright
Other

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