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Related papers: Binding Group of Oligonucleotides on TiO 2 Surface…

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We investigate the adsorption of the nucleic acid bases, adenine (A), guanine (G), cytosine (C), thymine (T) and uracil (U) on the outer wall of a high curvature semiconducting single-walled boron nitride nanotube (BNNT) by first principles…

Biological Physics · Physics 2014-11-20 Saikat Mukhopadhyay , S. Gowtham , Ralph H. Scheicher , Ravindra Pandey , Shashi P. Karna

We report the results of our first-principles study based on density functional theory on the interaction of the nucleic acid base molecules adenine (A), cytosine (C), guanine (G), thymine (T), and uracil (U), with a single-walled carbon…

Soft Condensed Matter · Physics 2008-02-21 S. Gowtham , Ralph H. Scheicher , Ravindra Pandey , Shashi P. Karna , Rajeev Ahuja

We report the results of our first-principles investigation on the interaction of the nucleobases adenine (A), cytosine (C), guanine (G), thymine (T), and uracil (U) with graphene, carried out within the density functional theory framework,…

Materials Science · Physics 2007-07-05 S. Gowtham , Ralph H. Scheicher , Rajeev Ahuja , Ravindra Pandey , Shashi P. Karna

The presence of small hematite (Fe2O3) clusters at low coverage on titanium dioxide (TiO2) surface has been observed to enhance photocatalytic activity, while excess loading of hematite is detrimental. We conduct a comprehensive density…

Materials Science · Physics 2024-04-09 Kati Asikainen , Matti Alatalo , Marko Huttula , Bernardo Barbiellini , S. Assa Aravindh

Structural and electronic properties comparison between anatase, rutile and monoclinic TiO2(B) titania polymorphs in bulk and related nanostructures simulated by two-dimensional slabs has been performed by means of density functional theory…

Materials Science · Physics 2011-08-16 Luciana Fernández-Werner , Ricardo Faccio , Helena Pardo , Álvaro W. Mombrú

Adsorption of monovalent and multivalent cat- and anions on a deoxyribose nucleic acid (DNA) molecule from a salt solution is investigated by computer simulation. The ions are modelled as charged hard spheres, the DNA molecule as a point…

Soft Condensed Matter · Physics 2009-11-10 E. Allahyarov , H. Löwen , G. Gompper

We present a comparative study of DNA nucleobases [guanine (G), adenine (A), thymine (T), and cytosine (C)] adsorbed on hexagonal boron nitride (\textit{h}-BN) sheet and graphene, using local, semilocal, and van der Waals (vdW)…

Mesoscale and Nanoscale Physics · Physics 2013-07-04 Jun-Ho Lee , Yun-Ki Choi , Hyun-Jung Kim , Ralph H. Scheicher , Jun-Hyung Cho

The adsorption of two different organic molecules cyanidin glucoside (C$_{21}$O$_{11}$H$_{20}$) and TA-St-CA on anatase (101) and (001) nanowires have been investigated using the standard and the range separated hybrid density functional…

Mesoscale and Nanoscale Physics · Physics 2020-05-20 Hatice Unal , Deniz Gunceler , Oguz Gulseren , Sinasi Ellialtioglu , Ersen Mete

Hybrid materials of MXenes (2D carbides and nitrides) and transition-metal oxides (TMOs) have shown great promise in electrical energy storage and 2D heterostructures have been proposed as the next-generation electrode materials to expand…

Materials Science · Physics 2021-07-21 Lihua Xu , Tao Wu , Paul R. C. Kent , De-en Jiang

Water absorption and dissociation processes on pristine low-index TiO$_2$ interfaces are important but poorly understood outside the well-studied anatase (101) and rutile (110). To understand these, we construct three sets of machine…

Materials Science · Physics 2023-03-15 Zezhu Zeng , Felix Wodaczek , Keyang Liu , Frederick Stein , Jürg Hutter , Ji Chen , Bingqing Cheng

In the course of our investigations of the adsorption of ions to the air-water interface, we previously reported the surprising result that doubly-charged carbonate anions exhibit a stronger surface affinity than do singly-charged…

The adsorption and dissociation of H$_2$, O$_2$, and H$_2$O on Ni-Fe alloys with variable Fe:Ni ratio are studied by means of Density Functional Theory calculations. The alloy composition deeply influences the thermochemistry of the…

Materials Science · Physics 2024-10-28 Changyuan Li , Sergio Tosoni

Interaction between engineered nanoparticles and natural organic matter is investigated by measuring the exchanged heat during binding process with isothermal titration calorimetry. TiO2 anatase nanoparticles and alginate are used as…

Materials Science · Physics 2021-09-21 Frédéric Loosli , Letícia Vitorazi , Jean-François Berret , Serge Stoll

The electronic properties of TiO$_2$ nanostructure are explored using density functional theory. The adsorption properties of acetone on TiO$_2$ nanostructure are studied in terms of adsorption energy, average energy gap variation and…

Mesoscale and Nanoscale Physics · Physics 2017-12-15 V. Nagarajan , S. Sriram , R. Chandiramouli

The interaction of water with oxide surfaces is of great interest for both fundamental science and applications. We present a combined theoretical [density functional theory (DFT)] and experimental [Scanning Tunneling Microscopy (STM),…

In this work, using theoretical calculations within the framework of the density functional theory, taking into account the dispersive VDW interaction, the processes of adsorption and interaction of a water molecule with a TiO2 surface in…

The adsorption of cytosine on the Au(111) and Au(110) surfaces has been studied using both aqueous deposition and evaporation in vacuum to prepare the samples. Soft X-ray photoelectron spectroscopy (XPS) and near edge X-ray absorption fine…

Chemical Physics · Physics 2013-05-21 M. Iakhnenko , V. Feyer , N. Tsud , O. Plekan , F. Wang , M. Ahmed , O. Slobodyanyuk , R. G. Acres , V. Matolín , K. C. Prince

Strategies based on the active targeting of tumor cells are emerging as smart and efficient nanomedical procedures. Folic acid (FA) is a vitamin and a well-established tumor targeting agent because of its strong affinity for the folate…

Materials Science · Physics 2022-08-22 Edoardo Donadoni , Paulo Siani , Giulia Frigerio , Cristiana Di Valentin

Electrodes in dye sensitised solar cells (DSSCs) are typically nanocrystalline anatase TiO2 with a majority (101) surface exposed. Generally the sensitising dye employs a carboxylic anchoring moiety through which it adheres to the TiO2…

Materials Science · Physics 2014-03-20 Conn O'Rourke , David R. Bowler

Understanding the atomic-scale interaction mechanism of CO$_2$ and H$_2$O on TiO$_2$ surface is crucial to establish a correlation between the catalytic efficiency with its exposed facet. Here, with the aid of a three-state model, nudged…

Materials Science · Physics 2020-08-07 Shashi B. Mishra , B. R. K. Nanda
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