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5,176 Newest Publications in journal of physical chemistry b
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Well-Defined and Sequence-Specific Noncovalent Binding Forces of DNA
14-06-2013 | Lashan De Silva; Li Yao; Yuhong Wang; Shoujun Xu, Journal of Physical Chemistry B, 2013
The specific binding between the two DNA strands in a double helix is one of the most fundamental and influential molecular interactions in biochemistry. Using force-induced remnant magnetization spectroscopy (FIRMS), we obtained well-defined binding forces of DNA oligomers, with a narrow ...
Evolutionary Pressure on the Topology of Protein Interface Interaction Networks
14-06-2013 | Margaret E. Johnson; Gerhard Hummer, Journal of Physical Chemistry B, 2013
The densely connected structure of protein–protein interaction (PPI) networks reflects the functional need of proteins to cooperate in cellular processes. However, PPI networks do not adequately capture the competition in protein binding. By contrast, the interface interaction network (IIN) ...
Regarding the Universality of Some Consequences of the van der Waals Equation in the Supercritical Domain
13-06-2013 | E. M. Apfelbaum; V. S. Vorob’ev, Journal of Physical Chemistry B, 2013
We show that some of the thermodynamic regularities, following from the van der Waals (VDW) equation, are valid for the real substances and models described by completely different equations of state. These regularities relate to lines of ideal enthalpy, enthalpy minima, and isothermal ...
Formation of Rigid Organic Nanotubes with Controlled Internal Cavity Based on Frustrated Aggregate Internal Rearrangement Mechanism
13-06-2013 | Minwoo Han; Jungin Hyun; Eunji Sim, Journal of Physical Chemistry B, 2013
We introduce frustrated aggregate internal rearrangement (FAIR) mechanism for anisotropic higher-order structure formations, in which the anisotropy arose due to the structural frustration. We demonstrate the FAIR mechanism by investigating the recently observed rigid organic nanotube ...
Incorporation of Ubiquinone in Supported Lipid Bilayers on ITO
13-06-2013 | Javier Hoyo; Ester Guaus; Gerard Oncins; Juan Torrent-Burgués; Fausto Sanz, Journal of Physical Chemistry B, 2013
Ubiquinone (UQ) is one of the main electron and proton shuttle molecules in biological systems, and dipalmitoylphosphatidylcholine (DPPC) is one of the most used model lipids. Supported planar bilayers (SPBs) are extensively accepted as biological model membranes. In this study, SPBs have ...
Conformational Study of GSH and GSSG Using Constant-pH Molecular Dynamics Simulations
12-06-2013 | Diogo Vila-Viçosa; Vitor H. Teixeira; Hugo A. F. Santos; Miguel Machuqueiro, Journal of Physical Chemistry B, 2013
Glutathione is a small peptide with a crucial role in living organisms. This molecule is found in Nature in both reduced (GSH) and oxidized (GSSG) forms and a high GSH/GSSG ratio is essential to the cell. Glutathione is also present in several enzymatic reactions and can be found in many ...
Chain Length Dependent Excited-State Decay Processes of Diluted PF2/6 Solutions
12-06-2013 | João Pina; J. Sérgio Seixas de Melo; Niels Koenen; Ulli Scherf, Journal of Physical Chemistry B, 2013
The excited-state dynamics of a series of four poly[2,7-(9,9-bis(2-ethylhexyl)fluorene] fractions, PF2/6, with different chain length (degrees of polymerization DP: 5, 10, 39, and 205) was investigated in dilute solutions by steady-state and time-resolved fluorescence techniques. Two decay ...
Self-Aggregation of MEGA-9 (N-Nonanoyl-N-methyl-d-glucamine) in Aqueous Medium: Physicochemistry of Interfacial and Solution Behaviors with Special Reference to Formation Energetics and Micelle Microenvironment
12-06-2013 | Animesh Pan; Soumya Sundar Mati; Bappaditya Naskar; Subhash Chandra Bhattacharya; Satya Priya Moulik, Journal of Physical Chemistry B, 2013
Self-aggregation of MEGA-9 (N-nonanoyl-N-methyl-d-glucamine), a nonionic sugar-based surfactant, was studied with respect to the effect of salt (NaCl) and ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) on its critical micelle concentration (cmc), aggregation number, hydrodynamic ...
On the Shape of the Phonon Spectral Density in Photosynthetic Complexes
11-06-2013 | Adam Kell; Ximao Feng; Mike Reppert; Ryszard Jankowiak, Journal of Physical Chemistry B, 2013
We provide a critical assessment of typical phonon spectral densities, J(ω), used to describe linear and nonlinear optical spectra in photosynthetic complexes. Evaluation is based on a more careful comparison to experiment than has been provided in the past. J(ω) describes the ...
Shear Thinning Three-Dimensional Colloidal Assemblies of Chitosan and Poly(lactic acid) Nanoparticles
11-06-2013 | Rémi Roux; Catherine Ladavière; Alexandra Montembault; Laurent David; Thierry Delair, Journal of Physical Chemistry B, 2013
In this study, new materials capable of reversible self-assembly, based on concentrated negatively charged poly(lactic acid) nanoparticles and chitosan, a natural polycationic polymer, were successfully fabricated. Electrostatic interactions between oppositely charged components along with ...
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