نتایج جستجو برای: bnnt

تعداد نتایج: 125  

The monitoring and controlling of environmental pollutions are very important in biological and industrial processes, and a great interest is growing with the development of suitable gas–sensitive materials and hazardous chemical removal devices. In this work, the highly parameterized, empirical exchange–correlation functional M06–2X were employed to investigate the electronic sensitivity of pe...

In this research, the nonlinear buckling analysis of Functionally Graded (FG) nano-composite beam reinforced by various distributions of Boron Nitrid Nanotube (BNNT) is investigated under electro-thermodynamical loading with considering initial geometrical imperfection. The analysis is performed based on nonlocal elasticity theory and using the Finite Element Method (FEM). Various distribu...

2012
Gianni Ciofani Serena Danti Giada Graziana Genchi Delfo D’Alessandro Jean-Luc Pellequer Michaël Odorico Virgilio Mattoli Mario Giorgi

Boron nitride nanotubes (BNNTs) have attracted huge attention in many different research fields thanks to their outstanding chemical and physical properties. During recent years, our group has pioneered the use of BNNTs for biomedical applications, first of all assessing their in vitro cytocompatibility on many different cell lines. At this point, in vivo investigations are necessary before pro...

2010
Zhaohui Dong Yang Song

Multiwalled boron nitride nanotubes (BNNTs) were compressed at room temperature in diamond anvil cells up to 35 GPa, followed by decompression. For the first time, in situ infrared absorption spectroscopy was used to monitor BNNT structural transformations. These BNNTs were found to undergo pressure-induced transformations from a hexagonal to a more closely packed wurtzite structure at 11 GPa, ...

Ghahremani, Sahar, Khaleghian, Mehrnoosh, Samadizadeh, Marjaneh,

Background: The purpose of using nano-carriers for drugs delivery, such as nanotubes, is slow release of drug and reducing side effects of drugs. Drugs are very active due to their many functional groups. Therefore, reactivity of drug is reduced by being in nanotube field due to electronic resonance of drug with nanotube and it stays longer in body. As a result, less amount of drug is used and ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده شیمی 1392

با توجه به مطالعات انجام شده در این پایان نامه نتایج زیر را بدست می آوریم: انرژی برهم کنش متوسط اسیدهای آمینه در فاز گازی به دلیل اثر برهم کنش های واندروالس با افزایش جرم مولکولی اسیدهای آمینه افزایش می یابد. انرژی برهم کنش متوسط سامانه های آبی با توجه به ممانعت فضایی اسیدهای آمینه برای آلانین در مقایسه با سرین و گلایسین بیشترین مقدار را دارد. با افزایش دما انرژی برهم کنش متوسط سامانه ی آب-bnnt...

2010
G Ciofani L Ricotti S Danti S Moscato C Nesti D D’Alessandro D Dinucci F Chiellini A Pietrabissa M Petrini A Menciassi

Boron nitride nanotubes (BNNTs) have generated considerable interest within the scientific community by virtue of their unique physical properties, which can be exploited in the biomedical field. In the present in vitro study, we investigated the interactions of poly-l-lysine-coated BNNTs with C2C12 cells, as a model of muscle cells, in terms of cytocompatibility and BNNT internalization. The l...

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