Aggregation-free DNA nanocage/Quantum Dot complexes based on electrostatic adsorption

Amphiphile-DNA complexes: adsorption, delivery and release

A theory is presented which quantitatively accounts for the cooperative adsorption of cationic surfactants to anionic polyelectrolyte [1,2]. For high salt concentrations, we find that the critical adsorption concentration (CAC) is a bilinear function of the polyion monomer and salt concentrations, with the coefficients dependent only on the type of surfactant used. Motivated by the theory, we h...

Detection of mercury(II) based on Hg2+ -DNA complexes inducing the aggregation of gold nanoparticles.

A DNA-Au NP probe for sensing Hg2+ using the formation of DNA-Hg2+ complexes through thymidine (T)-Hg2+ -T coordination to control the negative charge density of the DNA strands-thereby varying their structures-adsorbed onto Au NPs.

Surprising roles of electrostatic interactions in DNA-ligand complexes.

The positions of cations in x-ray structures are modulated by sequence, conformation, and ligand interactions. The goal here is to use x-ray diffraction to help resolve structural and thermodynamic roles of specifically localized cations in DNA-anthracycline complexes. We describe a 1.34 A resolution structure of a CGATCG(2)-adriamycin(2) complex obtained from crystals grown in the presence of ...

Opposites Attract: Shape and Electrostatic Complementarity in Protein-DNA Complexes

Department of Physics and b Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306, USA; Molecular and Computational Biology Program, Departments of Biological Sciences and Chemistry, University of Southern California, 1050 Childs Way, Los Angeles, CA 90089, USA; Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA *Email...

Electrostatic Free - Free Beam