Results 351 to 360 of about 25,360,752 (379)
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Electrical Conduction through Poly(dA)-Poly(dT) and Poly(dG)-Poly(dC) DNA Molecules
Physical Review Letters, 2001We report direct measurements of electrical transport through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules containing identical base pairs. The observed experimental results suggest that electrical transport through DNA molecules occurs by polaron hopping. We have also investigated the effect of gate voltage on the current-voltage curve.
Ju Jin Kim +9 more
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Synthetic Metals, 1993
Abstract With the aim of improving the processability of some electrochromic polymers, dithienopyrrole and dithienthiophene were polymerized by a potentiodynamic technique on platinum electrode coated by poly(vinylchloride). A composite was obtained in both cases, characterized by a good processability, typical for poly(vinylchloride), and by ...
BEGGIATO G +5 more
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Abstract With the aim of improving the processability of some electrochromic polymers, dithienopyrrole and dithienthiophene were polymerized by a potentiodynamic technique on platinum electrode coated by poly(vinylchloride). A composite was obtained in both cases, characterized by a good processability, typical for poly(vinylchloride), and by ...
BEGGIATO G +5 more
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A circular dichroism study of poly dG, poly dC, and poly dG:dC
Biopolymers, 1974AbstractWe have measured the ultraviolet circular dichroism spectra of oligo d(pG)5, poly dN AcG, poly dI, poly dC, two samples of poly dG, and four samples containing double‐stranded poly dG:dC. We find that oligo d(pG)5 and poly dG exist in self‐complexed forms as well as in single‐stranded forms. Unlike the self‐complexed form of poly dG, the single‐
F. J. Bollum, Donald M. Gray
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Poly(ethylene glycol) in drug delivery: pros and cons as well as potential alternatives.
Angewandte Chemie, 2010Poly(ethylene glycol) (PEG) is the most used polymer and also the gold standard for stealth polymers in the emerging field of polymer-based drug delivery. The properties that account for the overwhelming use of PEG in biomedical applications are outlined
K. Knop +3 more
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Molecular Immunology, 1986
Eight monoclonal antibodies were prepared from a C57/black mouse which had been immunized with poly(rI).poly(dC). Two of the antibodies were specific for the RNA-DNA duplex but bound about 100-fold better to poly(rI).poly(dC) than to poly(rA).poly(dT). The other six antibodies were single-strand specific and bound to poly(rI) and in most cases to poly ...
Ralph P. Braun +2 more
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Eight monoclonal antibodies were prepared from a C57/black mouse which had been immunized with poly(rI).poly(dC). Two of the antibodies were specific for the RNA-DNA duplex but bound about 100-fold better to poly(rI).poly(dC) than to poly(rA).poly(dT). The other six antibodies were single-strand specific and bound to poly(rI) and in most cases to poly ...
Ralph P. Braun +2 more
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Journal of Lesbian Studies, 1999
SUMMARY In contrast to the monogamous model for sexual relationships (including those of lesbians) in western society, friendships are permitted to be polyamorous. However, friendships do not receive the level of salience and priority that sexual relationships do. This article focuses on three issues that keep lesbians from prioritizing friendships: (1)
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SUMMARY In contrast to the monogamous model for sexual relationships (including those of lesbians) in western society, friendships are permitted to be polyamorous. However, friendships do not receive the level of salience and priority that sexual relationships do. This article focuses on three issues that keep lesbians from prioritizing friendships: (1)
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Proton exchange and base-pair kinetics of poly(rA) · poly(rU) and poly(rI) · poly(rC)
Journal of Molecular Biology, 1985Proton exchange of poly(rA).poly(rU) and poly(rI).poly(rC) has been studied by nuclear magnetic resonance line broadening and saturation transfer from H2O. Five exchangeable peaks are observed. They are assigned to the imino, amino and 2'-OH ribose protons. The aromatic spectrum is also assigned.
Daniel Broseta +2 more
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High frequency vibrational modes of poly(dA) · poly(dT) and poly(dAT) · poly(dAT)
Journal of Raman Spectroscopy, 1979AbstractThe Raman and infrared spectra of poly(dA) · poly(dT) and poly(dAT) · poly(dAT) have been recorded. Normal coordinate analyses have been performed for these two polymers to obtain the fundamental modes. We use a valence force field deduced from literature values and from a refinement of a diethyl phosphate potential. Non‐bonded interactions are
J. Sturm +3 more
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Macromolecular Rapid Communications, 2009
AbstractPoly(aryleneethynylene)s (PAE) are easily synthesized, chemically stable, and color‐responsive towards their surroundings. These superbly chromic polymers are attractive as active transducers in sensors and advanced organic electronic devices. PAEs are generally fluorescent with emission maxima ranging from 420–600 nm, and can be either water ...
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AbstractPoly(aryleneethynylene)s (PAE) are easily synthesized, chemically stable, and color‐responsive towards their surroundings. These superbly chromic polymers are attractive as active transducers in sensors and advanced organic electronic devices. PAEs are generally fluorescent with emission maxima ranging from 420–600 nm, and can be either water ...
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