Determination of Mechanical Properties of Biocompatible Three-Dimensional Nanocomposites Manufactured Using Laser Methods

Андреева, И. В.; Баграташвили, В. Н.; Ичкитидзе, Л. П.; Podgaetsky, Vitaly M.; Пономарева, О. В.; Savranskiĭ, V. V.; Селищев, С. В.

doi:10.1007/s10527-010-9134-4

Cited by 2 publications

(4 citation statements)

References 13 publications

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“…According to the data of 16 , the relative volume of nanopores in such BNCs is 30-55% with their diameters ranging from 25 to 65 nm. The presence of nanopores in the nanocomposites makes them more attractive for medical applications, providing favorable conditions for fusion, migration, and proliferation of cells and channels for blood vessels, as in porous bone tissue 17 .…”

Section: Fig 2: Afm Topographs Of Nanocomposite Samples Obtained Fromentioning

confidence: 99%

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2018

IJPSR

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Bulk nanocomposites prepared from aqueous albumin dispersion with carbon nanotubes by removing the liquid component from the dispersion have been investigated. The composites were obtained by thermostating and exposure to LED and IR diode laser radiation. The nanocomposites obtained under laser irradiation retain their shape and properties for several years, in contrast to the composites fabricated in different ways (which decompose into small fragments immediately after preparation). The low density of the composites under study (~1200 kg/m 3 ), which is close to the density of water, is due to their high porosity. The hardness of stable nanocomposites (~300 MPa) was found to be at the same level as the hardness of polymethylmethacrylate, aluminium, and iron and close to the hardness of human bone tissue. The cluster quasi ordering of the inner structure of nanocomposites revealed by atomic force microscopy indicates the possibility of forming a bulk nanotube framework in them, which can be caused by the effect of the electric field of laser radiation and ensure their stability and hardness. The presence of a framework in nanocomposites provides conditions for self-assembly of biological tissues and makes it possible to apply laser-prepared nanocomposites as a component of surgical implants.

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Section: Fig 2: Afm Topographs Of Nanocomposite Samples Obtained Fromentioning

confidence: 99%

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2018

IJPSR

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“…In this work, we used the methods of obtaining the CNT, which are described in [8][9][10][11], where the combined nano-and laser technologies were used. At that, numerous technological parameter as stirring duration, power and duration of the ultrasonic treatment, values of C, power density and duration of the laser treatment, temperature and time of the additional drying of fabricated CNT, etc.…”

Section: Samples Preparation and Measurment Techniquesmentioning

confidence: 99%

“…In this study, we used the methods for obtaining bulk CNM, which are described in [8][9][10][11], where nanotechnology and laser technology are used in combination. During preparation of the samples, numerous technological parameters were varied including the power density, the duration time of laser irradiation, parameters of preparation of aqueous solutions BSA + MWCNT (the duration time of mixing, the power level and duration time of ultrasonic treatment, etc.…”

Section: Samples Preparation and Measurment Techniquesmentioning

confidence: 99%

“…According to the latter conclusion, it is obvious that preference should be given to the functionalized CNT when creating nanomaterials based on CNT for biomedical applications. Partly this approach was used in [8][9][10][11] for obtaining bulk composite materials BSA + MWCNT and studying their mechanical properties since albumin functionalizes CNT [12]. On the other hand, bulk composite nanomaterials BSA + MWCNT are of independent interest, when the used MWCNT are preexposed to functionalization.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bulk Composite Nanomaterial with Multiwall Carbon Nanotubes

Ичкитидзе¹,

Podgaetsky²,

Prihodko³

et al. 2012

MSA

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The properties of the composite nanomaterials (CNM) based on bovine serum albumin (BSA) and multi-walled carbon nanotubes (MWCNT), both functionalized and non-functionalized, were investigated. In order to obtain the solid-state bulk CNM from the ultradispersed aqueous solutions of 25 wt.% BSA and (0.0015 - 0.04) wt.% MWCNT, the methods of nanotechnology and laser technology were used. It is revealed that the CNM density is 10% - 20% higher than that of water and the hardness is higher than that of BSA by a factor of 3 - 6 times. An increase in hardness Hv (by Vickers) of CNM correlated with an increase in the concentration of MWCNT, and Hyreached ~300 MPa for the case of the non-functionalized MWCNT, while for the case of the functionalized MWCNT, i.e. MWCNTf, Hy was 25% lower

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Determination of Mechanical Properties of Biocompatible Three-Dimensional Nanocomposites Manufactured Using Laser Methods

Cited by 2 publications

References 13 publications

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Bulk Composite Nanomaterial with Multiwall Carbon Nanotubes

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