Juan Burgos - Academia.edu (original) (raw)
Papers by Juan Burgos
Sanidad Militar, 2014
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Electric Power Systems Research, 2014
ABSTRACT
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Electric Power Systems Research, 2014
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Progress in Molecular Biology and Translational Science, 2011
Carbon nanotubes (CNTs) are cylinder-shaped allotropic forms of carbon, most widely produced unde... more Carbon nanotubes (CNTs) are cylinder-shaped allotropic forms of carbon, most widely produced under chemical vapor deposition. They possess astounding chemical, electronic, mechanical, and optical properties. Being among the most promising materials in nanotechnology, they are also likely to revolutionize medicine. Among other biomedical applications, after proper functionalization carbon nanotubes can be transformed into sophisticated biosensing and biocompatible drug-delivery systems, for specific targeting and elimination of tumor cells. This chapter provides an introduction to the chemical and electronic structure and properties of single-walled carbon nanotubes, followed by a description of the main synthesis and post-synthesis methods. These sections allow the reader to become familiar with the specific characteristics of these materials and the manner in which these properties may be dependent on the specific synthesis and post-synthesis processes. The chapter ends with a review of the current biomedical applications of carbon nanotubes, highlighting successes and challenges.
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2012 47th International Universities Power Engineering Conference (UPEC), 2012
ABSTRACT
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The Journal of Physical Chemistry C, 2014
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The Journal of Physical Chemistry C, 2013
ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved h... more ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved high degree of orientation and selectivity when specific cuts of quartz surfaces are used as support. In this study we demonstrate that finite-length zigzag nanotubes are adsorbed stronger than armchair tubes on the quartz support. This is done through density functional theory calculations that evaluate the interaction between SWCNTs and the ST-cut surface of the quartz substrate. Among the nanotubes studied, the (7,0) presents the strongest adsorption energy, found along the [010] direction, which is parallel to the y-axis. Unexpectedly, patterns delineated by silicon and oxygen atoms along the [010] direction established the strongest as well as the weakest adsorption energies. This suggests that the nanotube electronic band structure is a key factor on the preferential adsorption of zigzag tubes. Charge analysis demonstrates the role of oxygen atoms on the partial oxidation of nanotube atoms closest to the substrate. Finally, the analysis of the electronic density of states proves that atomic interactions between substrate and nanotubes induce modifications of the occupied states near to the Fermi level, which can potentially modify the metallic or semiconducting character in adsorbed SWCNTs.
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The Journal of Physical Chemistry C, 2009
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IEEE Transactions on Electronic Computers, 2002
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IEEE Transactions on Electronic Computers, 2006
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Sanidad Militar, 2014
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Bookmarks Related papers MentionsView impact
Electric Power Systems Research, 2014
ABSTRACT
Bookmarks Related papers MentionsView impact
Electric Power Systems Research, 2014
Bookmarks Related papers MentionsView impact
Progress in Molecular Biology and Translational Science, 2011
Bookmarks Related papers MentionsView impact
2012 47th International Universities Power Engineering Conference (UPEC), 2012
ABSTRACT
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2014
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The Journal of Physical Chemistry C, 2013
ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved h... more ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved high degree of orientation and selectivity when specific cuts of quartz surfaces are used as support. In this study we demonstrate that finite-length zigzag nanotubes are adsorbed stronger than armchair tubes on the quartz support. This is done through density functional theory calculations that evaluate the interaction between SWCNTs and the ST-cut surface of the quartz substrate. Among the nanotubes studied, the (7,0) presents the strongest adsorption energy, found along the [010] direction, which is parallel to the y-axis. Unexpectedly, patterns delineated by silicon and oxygen atoms along the [010] direction established the strongest as well as the weakest adsorption energies. This suggests that the nanotube electronic band structure is a key factor on the preferential adsorption of zigzag tubes. Charge analysis demonstrates the role of oxygen atoms on the partial oxidation of nanotube atoms closest to the substrate. Finally, the analysis of the electronic density of states proves that atomic interactions between substrate and nanotubes induce modifications of the occupied states near to the Fermi level, which can potentially modify the metallic or semiconducting character in adsorbed SWCNTs.
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2009
Bookmarks Related papers MentionsView impact
Sanidad Militar, 2014
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Electric Power Systems Research, 2014
ABSTRACT
Bookmarks Related papers MentionsView impact
Electric Power Systems Research, 2014
Bookmarks Related papers MentionsView impact
Progress in Molecular Biology and Translational Science, 2011
Carbon nanotubes (CNTs) are cylinder-shaped allotropic forms of carbon, most widely produced unde... more Carbon nanotubes (CNTs) are cylinder-shaped allotropic forms of carbon, most widely produced under chemical vapor deposition. They possess astounding chemical, electronic, mechanical, and optical properties. Being among the most promising materials in nanotechnology, they are also likely to revolutionize medicine. Among other biomedical applications, after proper functionalization carbon nanotubes can be transformed into sophisticated biosensing and biocompatible drug-delivery systems, for specific targeting and elimination of tumor cells. This chapter provides an introduction to the chemical and electronic structure and properties of single-walled carbon nanotubes, followed by a description of the main synthesis and post-synthesis methods. These sections allow the reader to become familiar with the specific characteristics of these materials and the manner in which these properties may be dependent on the specific synthesis and post-synthesis processes. The chapter ends with a review of the current biomedical applications of carbon nanotubes, highlighting successes and challenges.
Bookmarks Related papers MentionsView impact
2012 47th International Universities Power Engineering Conference (UPEC), 2012
ABSTRACT
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2014
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2013
ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved h... more ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved high degree of orientation and selectivity when specific cuts of quartz surfaces are used as support. In this study we demonstrate that finite-length zigzag nanotubes are adsorbed stronger than armchair tubes on the quartz support. This is done through density functional theory calculations that evaluate the interaction between SWCNTs and the ST-cut surface of the quartz substrate. Among the nanotubes studied, the (7,0) presents the strongest adsorption energy, found along the [010] direction, which is parallel to the y-axis. Unexpectedly, patterns delineated by silicon and oxygen atoms along the [010] direction established the strongest as well as the weakest adsorption energies. This suggests that the nanotube electronic band structure is a key factor on the preferential adsorption of zigzag tubes. Charge analysis demonstrates the role of oxygen atoms on the partial oxidation of nanotube atoms closest to the substrate. Finally, the analysis of the electronic density of states proves that atomic interactions between substrate and nanotubes induce modifications of the occupied states near to the Fermi level, which can potentially modify the metallic or semiconducting character in adsorbed SWCNTs.
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2009
Bookmarks Related papers MentionsView impact
IEEE Transactions on Electronic Computers, 2002
Bookmarks Related papers MentionsView impact
IEEE Transactions on Electronic Computers, 2006
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Sanidad Militar, 2014
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Electric Power Systems Research, 2014
ABSTRACT
Bookmarks Related papers MentionsView impact
Electric Power Systems Research, 2014
Bookmarks Related papers MentionsView impact
Progress in Molecular Biology and Translational Science, 2011
Bookmarks Related papers MentionsView impact
2012 47th International Universities Power Engineering Conference (UPEC), 2012
ABSTRACT
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2014
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2013
ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved h... more ABSTRACT Synthesis of horizontally aligned single-walled carbon nanotubes (SWCNTs) has achieved high degree of orientation and selectivity when specific cuts of quartz surfaces are used as support. In this study we demonstrate that finite-length zigzag nanotubes are adsorbed stronger than armchair tubes on the quartz support. This is done through density functional theory calculations that evaluate the interaction between SWCNTs and the ST-cut surface of the quartz substrate. Among the nanotubes studied, the (7,0) presents the strongest adsorption energy, found along the [010] direction, which is parallel to the y-axis. Unexpectedly, patterns delineated by silicon and oxygen atoms along the [010] direction established the strongest as well as the weakest adsorption energies. This suggests that the nanotube electronic band structure is a key factor on the preferential adsorption of zigzag tubes. Charge analysis demonstrates the role of oxygen atoms on the partial oxidation of nanotube atoms closest to the substrate. Finally, the analysis of the electronic density of states proves that atomic interactions between substrate and nanotubes induce modifications of the occupied states near to the Fermi level, which can potentially modify the metallic or semiconducting character in adsorbed SWCNTs.
Bookmarks Related papers MentionsView impact
The Journal of Physical Chemistry C, 2009
Bookmarks Related papers MentionsView impact