scholarly journals Nuclear Hyperfine and Quadrupole Tensor Characterization of the Nitrogen Hydrogen Bond Donors to the Semiquinone of the QBSite in Bacterial Reaction Centers: A Combined X- and S-Band14,15N ESEEM and DFT Study

2014 ◽  
Vol 118 (6) ◽  
pp. 1501-1509 ◽  
Author(s):  
Alexander T. Taguchi ◽  
Patrick J. O’Malley ◽  
Colin A. Wraight ◽  
Sergei A. Dikanov
Keyword(s):  
Hydrogen Bond ◽  
Reaction Centers ◽  
Dft Study ◽  
Bacterial Reaction Centers ◽  
Nitrogen Hydrogen Bond ◽  
Hydrogen Bond Donors

scholarly journals Revealing the Involvement of Extended Hydrogen Bond Networks in the Cooperative Function between Distant Sites in Bacterial Reaction Centers

2001 ◽  
Vol 276 (49) ◽  
pp. 45513-45515 ◽  
Author(s):  
Julia Tandori ◽  
Laura Baciou ◽  
Emil Alexov ◽  
Péter Maróti ◽  
Marianne Schiffer ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Reaction Centers ◽  
Bacterial Reaction Centers ◽  
Hydrogen Bond Networks

scholarly journals Nanostructured interfaces between photosynthetic bacterial Reaction Center and Silicon electrodes

MRS Advances ◽  
2019 ◽  
Vol 4 (31-32) ◽  
pp. 1741-1748 ◽  
Author(s):  
Marco Lo Presti ◽  
Danilo Vona ◽  
Gabriella Leone ◽  
Giorgio Rizzo ◽  
Roberta Ragni ◽  
...  
Keyword(s):  
Silicon Film ◽  
Reaction Centers ◽  
Electrode Surfaces ◽  
Bacterial Reaction Centers ◽  
Diatomaceous Silica ◽  
Quaternary Structures ◽  
Silicon Based ◽  
New Generation ◽  
Nanostructured Interfaces

ABSTRACT:Optimizing interfaces between photosynthetic natural photoconverters, like photosynthetic bacterial Reaction Centers (RCs) and electrode surfaces represents a challenge in the progress of bio-optoelectronic devices. The features of the surfaces may result detrimental for the tertiary and quaternary structures of the RC, even resulting in the denaturation of the enzyme. Functional surfaces possessing both confinement capability and conductive features able to preserve the conformation of the biomolecule and its bioelectronic behaviours are highly needed. In this work, the RC is adsorbed on diatomaceous silica and plasma treated hydrophobic silicon based materials. Both the materials are demonstrated to be able to preserve and enhance the RC photoconverting activity. In particular, we evaluate the functioning of isolated bacterial RC interacting with flat pSi electrode through two nanotextured interfaces designed to address the RC: a thin conductive silicon film nanotextured in pillars via plasma treatment, and a cast film of nanostructured dielectric biosilica obtained from diatomaceous earth. The characterization of these interfaces, together with the RC photocurrent production measurements, pave the way to new generation RC based bio-devices for photocurrent investigation.

Pulsed EPR/ENDOR Characterization of the Cu2+Surface Site in Photosynthetic Bacterial Reaction Centers

2004 ◽  
Vol 108 (30) ◽  
pp. 11150-11156 ◽  
Author(s):  
L. M. Utschig ◽  
A. V. Astashkin ◽  
A. M. Raitsimring ◽  
M. C. Thurnauer ◽  
O. G. Poluektov
Keyword(s):  
Reaction Centers ◽  
Surface Site ◽  
Pulsed Epr ◽  
Bacterial Reaction Centers

Synthesis and characterization of photothermal antibacterial hydrogel with enhanced mechanical properties

2021 ◽  
Author(s):  
Shu bin Li ◽  
Xiao Wang ◽  
Jiang Zhu ◽  
Zhenyu Wang ◽  
Lu Wang
Keyword(s):  
Mechanical Properties ◽  
Hydrogen Bond ◽  
Fe3o4 Nanoparticles ◽  
Intermolecular Hydrogen Bond ◽  
Amide Bond ◽  
Synthesis And Characterization

In this work, using carboxyl-modified Fe3O4 nanoparticles as a photothermal agent, combining the chemical amide bond and intermolecular hydrogen bond crosslinking force, a photothermal hydrogel with enhanced mechanical properties was...

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