Raman radial breathing mode frequency of boron nitride nanotubes with bounded uncertain material properties

2015 ◽  
Vol 10 (11) ◽  
pp. 617-620 ◽  
Author(s):  
Esmaeal Ghavanloo ◽  
S. Ahmad Fazelzadeh
Keyword(s):  
Boron Nitride ◽  
Material Properties ◽  
Radial Breathing Mode ◽  
Boron Nitride Nanotubes ◽  
Mode Frequency ◽  
Breathing Mode ◽  
Uncertain Material Properties

Radial breathing-mode frequency of elastically confined spherical nanoparticles subjected to circumferential magnetic field

2015 ◽  
Vol 66 ◽  
pp. 228-233 ◽  
Author(s):  
E. Ghavanloo ◽  
S.A. Fazelzadeh ◽  
T. Murmu ◽  
S. Adhikari
Keyword(s):  
Magnetic Field ◽  
Radial Breathing Mode ◽  
Mode Frequency ◽  
Spherical Nanoparticles ◽  
Breathing Mode

The radial breathing mode frequency in double-walled carbon nanotubes: an analytical approximation

2003 ◽  
Vol 237 (2) ◽  
pp. R7-R10 ◽  
Author(s):  
E. Dobardžić ◽  
J. Maultzsch ◽  
I. Milošević ◽  
C. Thomsen ◽  
M. Damnjanović
Keyword(s):  
Carbon Nanotubes ◽  
Radial Breathing Mode ◽  
Analytical Approximation ◽  
Mode Frequency ◽  
Breathing Mode ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Synthesis of Boron Nitride Nanotubes Using Plasma-Assisted CVD Catalyzed by Cu Nanoparticles and Oxygen

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 651
Author(s):  
Tatsuya Shiratori ◽  
Ichiro Yamane ◽  
Shoto Nodo ◽  
Ryo Ota ◽  
Takashi Yanase ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Chemical Vapor ◽  
Radial Breathing Mode ◽  
Boron Nitride Nanotubes ◽  
Shell Structures ◽  
Core Shell ◽  
Cu Nanoparticles ◽  
Transmission Electron ◽  
Mode Vibration

We found that oxidized Cu nanoparticles can catalyze the growth of boron nitride nanotubes from borazine via plasma-assisted chemical vapor deposition. The Raman spectra suggest that the formation of thin-walled nanotubes show a radial breathing mode vibration. The presence of oxygen in the plasma environment was necessary for the growth of the nanotubes, and a part of the nanotubes had a core shell structure with a cupper species inside it. In atomic resolution transmission electron microscope (TEM) images, Cu2O was found at the interface between the Cu-core and turbostratic BN-shell. The growth mechanism seemed different from that of carbon nanotube core-shell structures. Therefore, we pointed out the important role of the dynamic morphological change in the Cu2O-Cu system.

scholarly journals Nature of the constant factor in the relation between radial breathing mode frequency and tube diameter for single-wall carbon nanotubes

2008 ◽  
Vol 77 (24) ◽  
Author(s):  
P. T. Araujo ◽  
I. O. Maciel ◽  
P. B. C. Pesce ◽  
M. A. Pimenta ◽  
S. K. Doorn ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Radial Breathing Mode ◽  
Constant Factor ◽  
Mode Frequency ◽  
Tube Diameter ◽  
Single Wall Carbon Nanotubes ◽  
Breathing Mode ◽  
Single Wall Carbon

Molecular insights on the dynamic stability of peptide nucleic acid functionalized carbon and boron nitride nanotubes

2021 ◽  
Vol 23 (1) ◽  
pp. 219-228
Author(s):  
Nabanita Saikia ◽  
Mohamed Taha ◽  
Ravindra Pandey
Keyword(s):  
Nucleic Acid ◽  
Boron Nitride ◽  
Nucleic Acids ◽  
Dynamic Stability ◽  
Peptide Nucleic Acid ◽  
Rational Design ◽  
Peptide Nucleic Acids ◽  
Boron Nitride Nanotubes ◽  
Molecular Hybrids ◽  
Single Wall Nanotubes

The rational design of self-assembled nanobio-molecular hybrids of peptide nucleic acids with single-wall nanotubes rely on understanding how biomolecules recognize and mediate intermolecular interactions with the nanomaterial's surface.

Density Functional Theory Study of Antioxidant Adsorption onto Single- Wall Boron Nitride Nanotubes: Design of New Antioxidant Delivery Systems

2019 ◽  
Vol 22 (7) ◽  
pp. 470-482
Author(s):  
Samereh Ghazanfary ◽  
Fatemeh Oroojalian ◽  
Rezvan Yazdian-Robati ◽  
Mehdi Dadmehr ◽  
Amirhossein Sahebkar
Keyword(s):  
Density Functional Theory ◽  
Boron Nitride ◽  
Vitamin C ◽  
Electric Field ◽  
External Electric Field ◽  
Lipoic Acid ◽  
Density Functional ◽  
Cell Interaction ◽  
Boron Nitride Nanotubes ◽  
Functional Theory

Background: Boron Nitride Nanotubes (BNNTs) have recently emerged as an interesting field of study, because they could be used for the realization of developed, integrated and compact nanostructures to be formulated. BNNTs with similar surface morphology, alternating B and N atoms completely substitute for C atoms in a graphitic-like sheet with nearly no alterations in atomic spacing, with uniformity in dispersion in the solution, and readily applicable in biomedical applications with no obvious toxicity. Also demonstrating a good cell interaction and cell targeting. Aim and Objective: With a purpose of increasing the field of BNNT for drug delivery, a theoretical investigation of the interaction of Melatonin, Vitamin C, Glutathione and lipoic acid antioxidants using (9, 0) zigzag BNNTs is shown using density functional theory. Methods: The geometries corresponding to Melatonin, Vitamin C, Glutathione and lipoic acid and BNNT with different lengths were individually optimized with the DMOL3 program at the LDA/ DNP (fine) level of theory. Results: In the presence of external electric field Melatonin, Vitamin C, Glutathione and lipoic acid could be absorbed considerably on BNNT with lengths 22 and 29 Å, as the adsorption energy values in the presence of external electric field are considerably increased. Conclusion: The external electric field is an appropriate technique for adsorbing and storing antioxidants on BNNTs. Moreover, it is believed that applying the external electric field may be a proper method for controlling release rate of drugs.

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