Results 111 to 120 of about 167,152 (283)

Inelastic electron tunneling spectroscopy of difurylethene-based photochromic single-molecule junctions

Beilstein Journal of Nanotechnology, 2017
Diarylethene-derived molecules alter their electronic structure upon transformation between the open and closed forms of the diarylethene core, when exposed to ultraviolet (UV) or visible light.
Youngsang Kim, Safa G. Bahoosh, Dmytro Sysoiev, Thomas Huhn, Fabian Pauly, Elke Scheer   +5 more
doaj   +1 more source

Functionality in single-molecule devices: Model calculations and applications of the inelastic electron tunneling signal in molecular junctions

, 2012
We analyze how functionality could be obtained within single-molecule devices by using a combination of non-equilibrium Green's functions and ab-initio calculations to study the inelastic transport properties of single-molecule junctions.
Dash, L. K., Godby, R. W., Ness, H., Verstraete, M. J.   +3 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Optical probes of molecules as nano-mechanical switches

Nature Communications, 2020
The development of molecular electronics at single molecule level calls for new tools beyond electrical characterisation. Kos et al. show an optical probe of molecular junctions in a plasmonic nanocavity geometry, which supports in situ interrogation of ...
Dean Kos, Giuliana Di Martino, Alexandra Boehmke, Bart de Nijs, Dénes Berta, Tamás Földes, Sara Sangtarash, Edina Rosta, Hatef Sadeghi, Jeremy J. Baumberg   +9 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Role of solvents in the electronic transport properties of single-molecule junctions

Beilstein Journal of Nanotechnology, 2016
We report on an experimental study of the charge transport through tunnel gaps formed by adjustable gold electrodes immersed into different solvents that are commonly used in the field of molecular electronics (ethanol, toluene, mesitylene, 1,2,4 ...
Katharina Luka-Guth, Sebastian Hambsch, Andreas Bloch, Philipp Ehrenreich, Bernd Michael Briechle, Filip Kilibarda, Torsten Sendler, Dmytro Sysoiev, Thomas Huhn, Artur Erbe, Elke Scheer   +10 more
doaj   +1 more source

Large-Scale Atomistic Simulations of Environmental Effects on the Formation and Properties of Molecular Junctions

, 2012
Using an updated simulation tool, we examine molecular junctions comprised of benzene-1,4-dithiolate bonded between gold nanotips, focusing on the importance of environmental factors and inter-electrode distance on the formation and structure of bridged ...
Andrews D. Q., Asar J. A. O., Bandyopadhyay A., Bratkovsky A. M., Cao H., Chen F., Christopher R. Iacovella, Cleri F., Cossaro A., Cui X. D., Di Ventra M., Emberly E. G., Fatemi V., Fischer D., Frei M., French W. R., Frenkel D., Haiss W., Haiss W., Haiss W., Haiss W., Horiguchi K., Hostetler M. J., Huang Z., Humphrey W., Iacovella C. R., Iacovella C. R., Kim H. S., Kim Y., Kim Y., Kofke D. A., Kruger D., Kushmerick J. G., Leng Y. S., Li C., Lin L.-L., Lindsay S. M., Maul R., Mishchenko A., Nichols R. J., Nitzan A., Paulsson M., Peter T. Cummings, Plimpton S., Pontes R. B., Pontes R. B., Pu Q., Pu Q., Pu Q., Pu Q., Rappe A. K., Reed M. A., Selzer Y., Sen A., Sergueev N., Strange M., Strange M., Tao N. J., Toher C., Tsutsui M., Tsutsui M., Velez P., Venkataraman L., Venkataraman L., Wan L. J., Weber H. B., William R. French, Xiao X. Y., Xu B. Q.   +68 more
core   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Rational Design of High-Performance Photocontrolled Molecular Switches Based on Chiroptical Dimethylcethrene: A Theoretical Study

Molecules
The reversible photo-induced conformation transition of a single molecule with a [5]helicene backbone has garnered considerable interest in recent studies.
Li Han, Mei Wang, Yifan Zhang, Bin Cui, Desheng Liu   +4 more
doaj   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source