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DNA strands robed with ionic liquid moiety

Paper ID Volume ID Publish Year Pages File Format Full-Text
12011 772 2005 6 PDF Available
Title
DNA strands robed with ionic liquid moiety
Abstract

An ionic liquid domain was successfully prepared outside double-stranded DNA by fixing 1-alkyl-3-methyl-imidazolium (CnMI) cations on the phosphate groups of DNA. First, four species of ionic liquid were made using phosphoric acid di-n-butyl ester and CnMI (n=2,4,8, and 12) as a low molecular weight model. They were obtained as liquid salts, and their ionic conductivity ranged up to 10−5 S cm−1 at 50 °C. Based on this model study, counter cations of the phosphate groups of DNA were exchanged for four kinds of imidazolium cations. The resulting ionic liquid-robed DNA (IL-robed DNA) was soluble in ordinary organic solvents such as methanol or ethanol. Ionic conductivity was low, because the ion density was insufficient to form a continuous ionic liquid domain around the DNA strands. When 11 mol% 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4), which is a typical ionic liquid, was mixed with the IL-robed DNA, an ionic conductivity of 5.4×10−5 S cm−1 at 30 °C was observed because a continuous ionic liquid domain was successfully formed.

Keywords
DNA; Ionic liquid; Ion conduction; Biofilm
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DNA strands robed with ionic liquid moiety
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 27, September 2005, Pages 5558–5563
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us