scholarly journals Dynamical Treatment of Charge Transfer through Duplex Nucleic Acids Containing Modified Adenines

ACS Nano ◽  
2013 ◽  
Vol 7 (10) ◽  
pp. 9396-9406 ◽  
Author(s):  
Giorgia Brancolini ◽  
Agostino Migliore ◽  
Stefano Corni ◽  
Miguel Fuentes-Cabrera ◽  
F. Javier Luque ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Nucleic Acids ◽  
Dynamical Treatment

Luminescence Quenching by Photoinduced Charge Transfer between Metal Complexes in Peptide Nucleic Acids

2014 ◽  
Vol 118 (30) ◽  
pp. 9037-9045 ◽  
Author(s):  
Xing Yin ◽  
Jing Kong ◽  
Arnie De Leon ◽  
Yongle Li ◽  
Zhijie Ma ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Nucleic Acids ◽  
Metal Complexes ◽  
Peptide Nucleic Acids ◽  
Luminescence Quenching ◽  
Photoinduced Charge Transfer ◽  
Photoinduced Charge

Charge Transfer through Modified Peptide Nucleic Acids

Langmuir ◽  
2012 ◽  
Vol 28 (4) ◽  
pp. 1971-1981 ◽  
Author(s):  
Emil Wierzbinski ◽  
Arnie de Leon ◽  
Kathryn L. Davis ◽  
Silvia Bezer ◽  
Matthäus A. Wolak ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Nucleic Acids ◽  
Peptide Nucleic Acids

scholarly journals Sequence-complementarity dependent co-assembly of phosphodiester-linked aromatic donor-acceptor trimers

2021 ◽  
Author(s):  
Nadeema Appukutti ◽  
Alex de Vries ◽  
Prashant Gudeangadi ◽  
Bini Claringbold ◽  
Michelle Garrett ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Nucleic Acids ◽  
Supramolecular Chemistry ◽  
Self Assembly ◽  
Functional Nanomaterials ◽  
Monomer Sequence ◽  
Complementary Sequences ◽  
Sequence Complementarity ◽  
Aromatic Donor ◽  
Donor Acceptor

Development of the interplay between monomer sequence and supramolecular chemistry is critical if chemistry is to recapitulate the properties of proteins and nucleic acids in the synthetic world. We have created sequenced trimers of aromatic donor/acceptor units which participate in charge-transfer interactions, linked by phosphodiesters. Each sequence displays its own characteristic self-assembly, and moreover complementary sequences interact with each other to produce new nanostructures and emergent thermochromism. This finding paves the way towards new functional nanomaterials which make bio-analogous use of sequence to tune structure.

Charge transfer in nucleic acids

2009 ◽  
Vol 22 (S9) ◽  
pp. 213-221 ◽  
Author(s):  
Enrico Clement ◽  
Giorgina Corongiu
Keyword(s):  
Charge Transfer ◽  
Nucleic Acids

Charge Transfer Interaction Between Menadione and Nucleic Acids. A CIDNP Study.

1988 ◽  
pp. 115-116
Author(s):  
J. Marko ◽  
G. Vermeersch ◽  
V. Toebat ◽  
N. Febvay ◽  
A. Lablache-Combier
Keyword(s):  
Charge Transfer ◽  
Nucleic Acids ◽  
Charge Transfer Interaction

scholarly journals Charge Transfer through Modified Peptide Nucleic Acids

Langmuir ◽  
2012 ◽  
Vol 28 (39) ◽  
pp. 14107-14107 ◽  
Author(s):  
Emil Wierzbinski ◽  
Arnie de Leon ◽  
Kathryn L. Davis ◽  
Silvia Bezer ◽  
Matthäus A. Wolak ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Nucleic Acids ◽  
Peptide Nucleic Acids

scholarly journals Low-frequency vibrational modes in G-quadruplexes reveal the mechanical properties of nucleic acids

2021 ◽  
Author(s):  
Mario González Jiménez ◽  
Gopakumar Ramakrishnan ◽  
Nikita Tukachev ◽  
Hans Martin Senn ◽  
Klaas Wynne
Keyword(s):  
Gene Expression ◽  
Mechanical Properties ◽  
Charge Transfer ◽  
Nucleic Acids ◽  
Essential Role ◽  
Low Frequency ◽  
Protein Recognition ◽  
Vibrational Modes

Low-frequency vibrations play an essential role in biomolecular processes involving DNA such as gene expression, charge transfer, drug intercalation, and DNA–protein recognition. However, understanding the vibrational basis of these mechanisms...

Study of charge transfer in FeTi

1983 ◽  
Vol 41 ◽  
pp. 296-297
Author(s):  
J. Taft∅
Keyword(s):  
Charge Transfer ◽  
Charge Distribution ◽  
Electron Scattering ◽  
Periodic System ◽  
Electron Distribution ◽  
Scattering Amplitude ◽  
Transition Elements ◽  
Hartree Fock ◽  
Cscl Structure ◽  
The Right

It is well known that for reflections corresponding to large interplanar spacings (i.e., sin θ/λ small), the electron scattering amplitude, f, is sensitive to the ionicity and to the charge distribution around the atoms. We have used this in order to obtain information about the charge distribution in FeTi, which is a candidate for storage of hydrogen. Our goal is to study the changes in electron distribution in the presence of hydrogen, and also the ionicity of hydrogen in metals, but so far our study has been limited to pure FeTi. FeTi has the CsCl structure and thus Fe and Ti scatter with a phase difference of π into the 100-ref lections. Because Fe (Z = 26) is higher in the periodic system than Ti (Z = 22), an immediate “guess” would be that Fe has a larger scattering amplitude than Ti. However, relativistic Hartree-Fock calculations show that the opposite is the case for the 100-reflection. An explanation for this may be sought in the stronger localization of the d-electrons of the first row transition elements when moving to the right in the periodic table. The tabulated difference between fTi (100) and ffe (100) is small, however, and based on the values of the scattering amplitude for isolated atoms, the kinematical intensity of the 100-reflection is only 5.10-4 of the intensity of the 200-reflection.

Electron Microscopy of Nucleic Acids

1974 ◽  
Vol 32 ◽  
pp. 302-303
Author(s):  
Norman Davidson
Keyword(s):  
Electron Microscopy ◽  
Nucleic Acids ◽  
Basic Protein ◽  
Molecular Biologist ◽  
Topological Properties ◽  
Protein Film ◽  
Polynucleotide Chain

The basic protein film technique for mounting nucleic acids for electron microscopy has proven to be a general and powerful tool for the working molecular biologist in characterizing different nucleic acids. It i s possible to measure molecular lengths of duplex and single-stranded DNAs and RNAs. In particular, it is thus possible to as certain whether or not the nucleic acids extracted from a particular source are or are not homogeneous in length. The topological properties of the polynucleotide chain (linear or circular, relaxed or supercoiled circles, interlocked circles, etc. ) can also be as certained.

mRNA localization by Electron microscopic in situ hybridization

1991 ◽  
Vol 49 ◽  
pp. 430-431
Author(s):  
J. A. Pollock ◽  
M. Martone ◽  
T. Deerinck ◽  
M. H. Ellisman
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Nucleic Acids ◽  
Recombinant Dna ◽  
Light And Electron Microscopy ◽  
Electron Microscopic ◽  
High Voltage Electron Microscopy ◽  
Functional Sites ◽  
Voltage Electron

Localization of specific proteins in cells by both light and electron microscopy has been facilitate by the availability of antibodies that recognize unique features of these proteins. High resolution localization studies conducted over the last 25 years have allowed biologists to study the synthesis, translocation and ultimate functional sites for many important classes of proteins. Recently, recombinant DNA techniques in molecular biology have allowed the production of specific probes for localization of nucleic acids by “in situ” hybridization. The availability of these probes potentially opens a new set of questions to experimental investigation regarding the subcellular distribution of specific DNA's and RNA's. Nucleic acids have a much lower “copy number” per cell than a typical protein, ranging from one copy to perhaps several thousand. Therefore, sensitive, high resolution techniques are required. There are several reasons why Intermediate Voltage Electron Microscopy (IVEM) and High Voltage Electron Microscopy (HVEM) are most useful for localization of nucleic acids in situ.

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