TITLE

Electrostatic self-aligned placement of single nanodots by protein supramolecules

AUTHOR(S)
Yoshii, Shigeo; Kumagai, Shinya; Nishio, Kazuaki; Kadotani, Ayako; Yamashita, Ichiro
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/28/2009, Vol. 95 Issue 13, p133702
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Electrostatic self-aligned positioning of a single 7 nm nanoparticle in the cage-shaped protein ferritin onto an aminosilane disk pattern as large as next-generation photolithography can produce is demonstrated. Genetic modification of the ferritin increased its surface charge density and therefore improved its electrostatic interaction. Single molecules of the recombinant ferritin could achieve self-aligned placement on 32–45 nm disks under the optimal solution condition, which was calculated by numerical analysis. This biological self-aligned placement, incorporated into next-generation photolithography techniques, will be a useful wafer-scale nanofabrication tool.
ACCESSION #
44449119

 

Related Articles

  • Spontaneous formation of vesicles by weakly charged membranes. Kumaran, V. // Journal of Chemical Physics;10/1/1993, Vol. 99 Issue 7, p5490 

    The formation of vesicles by an amphiphilic bilayer at equilibrium due to spontaneous curvature and due to the difference in the charge densities in the two layers is analyzed. In the latter case, there is a decrease in the electrostatic energy when the membrane forms a vesicle with the surface...

  • One-dimensional Brownian Motion of Charged Particles along Microtubules: A Model System for Weak, Nonspecific Interactions. MINOURA, Itsushi; MUTO, Etsuko // Seibutsu Butsuri;2012, Vol. 52 Issue 1, p10 

    To understand the mechanism underlying the one-dimensional (1D) Brownian motion of proteins, we analyzed the behaviors of counterions along microtubules using the electroorientation method and compared these with the 1D Brownian motion of charged nanoparticles. Both results demonstrated that...

  • Electric field inside a 'Rossky cavity' in uniformly polarized water. Martin, Daniel R.; Friesen, Allan D.; Matyushov, Dmitry V. // Journal of Chemical Physics;8/28/2011, Vol. 135 Issue 8, p084514 

    Electric field produced inside a solute by a uniformly polarized liquid is strongly affected by dipolar polarization of the liquid at the interface. We show, by numerical simulations, that the electric 'cavity' field inside a hydrated non-polar solute does not follow the predictions of standard...

  • Electrostatic placement of single ferritin molecules. Kumagai, Shinya; Yoshii, Shigeo; Yamada, Kiyohito; Matsukawa, Nozomu; Fujiwara, Isamu; Iwahori, Kenji; Yamashita, Ichiro // Applied Physics Letters;4/10/2006, Vol. 88 Issue 15, p153103 

    We electrostatically placed a single ferritin molecule on a nanometric 3-aminopropyltriethoxysilane (APTES) pattern that was on an oxidized Si substrate. The numerical analysis of the total interaction free energy for ferritin predicted that a quadrilateral array of 15 nm diameter APTES...

  • Quantitative measurement of the surface charge density. Johann, Florian; Soergel, Elisabeth // Applied Physics Letters;12/7/2009, Vol. 95 Issue 23, p232906 

    We present a method of measuring the charge density on dielectric surfaces. Similar to electrostatic force microscopy we record the electrostatic interaction between the probe and the sample surface, but at large tip-sample distances. For calibration we use a pyroelectric sample which allows us...

  • Nanoparticle surface charge density in ionic magnetic fluids: The effect of particle–particle interaction. Fanyao, Qu; Morais, P. C. // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p7385 

    In this study, particle-particle interaction in ionic magnetic fluids is systematically investigated by self-consistently solving the coupled Schrö dinger and Poisson equations. It was found that particle-particle interaction changes the colloid characteristics by changing the energy level...

  • Adsorption of N-Allylthiourea on a Mercury Electrode: Dependence on the Supporting Electrolyte Concentration. Dalmata, Grażyna; Nosal-Wiercińska, Agnieszka // Croatica Chemica Acta;Dec2008, Vol. 81 Issue 4, p529 

    Adsorption of N-allylthiourea at the interface mercury/NaClO4 was studied as a function of electrode charge density, adsorbate, and the supporting electrolyte bulk concentration. Experimental data from measurements of the double layer differential capacity, zero charge potential, and surface...

  • A periodic charge-dipole electrostatic model. II. A kinetic-exchange-correlation correction. Bodrenko, I. V.; Della Sala, F. // Journal of Chemical Physics;Oct2013, Vol. 139 Issue 14, p144109 

    We extend the periodic charge-dipole electrostatic model, see I. V. Bodrenko, M. Sierka, E. Fabiano, and F. Della Sala, J. Chem. Phys. 137, 134702 (2012), to include a kinetic-exchange-correlation (KXC) correction. The KXC correction is approximated by means of an extended-Hückel-type...

  • Dust ion-acoustic solitary waves in a dusty plasma with arbitrarily charged dust and flat-trapped electrons. Alinejad, H. // Astrophysics & Space Science;Aug2011, Vol. 334 Issue 2, p331 

    The properties of arbitrary amplitude dust ion-acoustic (DIA) solitary waves (SWs) in a dusty plasma containing warm adiabatic ions, electrons following flat-topped velocity distribution, and arbitrarily (positively or negatively) charged immobile dust is studied by the pseudo-potential...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics