Chemistry at the graphene-SiO2 interface

Hossain, M. Zubaer
October 2009
Applied Physics Letters;10/5/2009, Vol. 95 Issue 14, p143125
Academic Journal
The structure and energetics and the chemistry of graphene on SiO2 surface are studied from first-principles. It is found that the energetic preference for the graphene layer to bind on specific sites on the O-terminated surface differs substantially from that on the Si-terminated surface. Regardless of the location of binding sites on a particular surface, electrons transfer from the graphene layer to the dielectric surface and its quantity is higher for the O-terminated surface. In addition, the electron transfer strongly depends on the type of surface termination but is independent of the binding site.


Related Articles

  • binding site:. Huber, Jeffrey T.; Gillaspy, Mary L. // Encyclopedic Dictionary of AIDS-Related Terminology;2000, p38 

    The article presents an encyclopedia entry for binding site, the reactive part of a macromolecule that directly participates in its specific combination with another molecule.

  • Null allele sequence structure at the DYS448 locus and implications for profile interpretation. Bruce Budowle; Xavier Aranda; Robert Lagace; Lori Hennessy; John Planz; Manuel Rodriguez; Arthur Eisenberg // International Journal of Legal Medicine;Sep2008, Vol. 122 Issue 5, p421 

    Abstract  Null alleles can occur with any PCR-based STR typing system. They generally are due to deletions within the target region or primer binding sites or by primer binding site mutations that destabilize hybridization of at least one of the primers flanking the target region. Although...

  • A Hierarchical Approach to Cooperativity in Macromolecular and Self-Assembling Binding Systems. Garc�s, Josep; Acerenza, Luis; Mizraji, Eduardo; Mas, Francesc // Journal of Biological Physics;Jan2008, Vol. 34 Issue 1/2, p213 

    The study of complex macromolecular binding systems reveals that a high number of states and processes are involved in their mechanism of action, as has become more apparent with the sophistication of the experimental techniques used. The resulting information is often difficult to interpret...

  • The intronic splicing code: multiple factors involved in ATM pseudoexon definition. Dhir, Ashish; Buratti, Emanuele; van Santen, Maria A.; Lührmann, Reinhard; Baralle, Francisco E. // EMBO Journal;2/17/2010, Vol. 29 Issue 4, p749 

    Abundance of pseudo splice sites in introns can potentially give rise to innumerable pseudoexons, outnumbering the real ones. Nonetheless, these are efficiently ignored by the splicing machinery, a process yet to be understood completely. Although numerous 5′ splice site-like sequences...

  • Tonic ubiquitylation controls T-cell receptor:CD3 complex expression during T-cell development. Haopeng Wang; Holst, Jeff; Seng-Ryong Woo; Guy, Cliff; Bettini, Matt; Yao Wang; Shafer, Aaron; Naramura, Mayumi; Mingueneau, Michaël; Leonard L.Dragone; Sandra M.Hayes; Malissen, Bernard; Band, Hamid; Vignali, Dario A. A. // EMBO Journal;4/1/2010, Vol. 29 Issue 7, p1285 

    Expression of the T-cell receptor (TCR):CD3 complex is tightly regulated during T-cell development. The mechanism and physiological role of this regulation are unclear. Here, we show that the TCR:CD3 complex is constitutively ubiquitylated in immature double positive (DP) thymocytes, but not...

  • fdrMotif: identifying cis-elements by an EM algorithm coupled with false discovery rate control. Leping Li; Robert L. Bass; Yu Liang // Bioinformatics;Mar2008, Vol. 24 Issue 5, p629 

    Motivation: Most de novo motif identification methods optimize the motif model first and then separately test the statistical significance of the motif score. In the first stage, a motif abundance parameter needs to be specified or modeled. In the second stage, a Z-score or P-value is used as...

  • Soaking up small RNAs. Hammond, Scott M. // Nature Methods;Sep2007, Vol. 4 Issue 9, p694 

    The article discusses on the genetic knockdown of microRNAs. It was explained that the ectopic expression of mRNAs which has numerous miRNA binding sites can specifically inhibit miRNA function. Such approach assures relevant utility in the functional study of miRNA genes. MiRNA genes are...

  • Lessons for fragment library design: analysis of output from multiple screening campaigns. I-Jen Chen; Hubbard, Roderick E. // Journal of Computer-Aided Molecular Design;Aug2009, Vol. 23 Issue 8, p603 

    Over the past 8 years, we have developed, refined and applied a fragment based discovery approach to a range of protein targets. Here we report computational analyses of various aspects of our fragment library and the results obtained for fragment screening. We reinforce the finding of others...

  • Using Symmetries (Beyond Geometric Symmetries) in Chemical Computations: Computing Parameters of Multiple Binding Sites. Ortiz, Andres; Kreinovich, Vladik // Symmetry (20738994);Mar2014, Vol. 6 Issue 1, p90 

    We show how transformation group ideas can be naturally used to generate efficient algorithms for scientific computations. The general approach is illustrated on the example of determining, from the experimental data, the dissociation constants related to multiple binding sites. We also explain...


Read the Article


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

Try another library?
Sign out of this library

Other Topics