Results 171 to 180 of about 5,478 (212)

NANOMECHANICAL PROPERTIES OF EPOXY COMPOSITES WITH CARBON FILLERS

Physics, Chemistry and Applications of Nanostructures, 2013
The key point of this study is investigation of nanomechanical properties of epoxy-based nanocomposites filled with different kinds of carbon nanofillers like exfoliated graphite, high surface-area carbon black, single-walled carbon nanotubes and multi-walled carbon ...
Ivanov, E, Kotsilkova, R, Paddubskaya, A, Pliushch, A, Stefanutti, E, CATALDO, Antonino, Celzard, A, Fierro, V.   +7 more
openaire   +2 more sources

Nanomechanical Properties of Globular Proteins:  Lactate Oxidase

Langmuir, 2007
We report on the study of the nanomechanical properties of a lactate oxidase (LOx) monolayer immobilized on gold substrates by atomic force microscopy techniques operating under buffer conditions. Topographical contact mode imaging evidenced the protein deformation under the applied tip load.
Ana, Parra, Elena, Casero, Encarnación, Lorenzo, Félix, Pariente, Luis, Vázquez   +4 more
openaire   +2 more sources

Nanomechanical Properties of Hydrated Carious Human Dentin

Journal of Dental Research, 2001
Most restorative materials are bonded to caries-affected dentin that has altered structure. We tested the hypothesis that hydrated dentin of the transparent zone did not have increased hardness or elastic modulus. Nanoindentation by modified AFM was used to determine site-specific elastic modulus and hardness for components of hydrated dentin from 8 ...
G W, Marshall, S, Habelitz, R, Gallagher, M, Balooch, G, Balooch, S J, Marshall   +5 more
openaire   +2 more sources

Nanomechanical Properties of Brittle Matter

2001
The paper focuses on inelastic deformation of brittle materials, quasicrystals in particular. It is shown, that quasicrystals exhibit the normal indentation size effect (ISE) at room temperature, and the inverse one at elevated temperatures. Load-depth-curves exhibit distinct discontinuities, and unloading hysteresis was observed.
Bodo Wolf, Peter Paufler
openaire   +1 more source

Nanomechanical properties of a Ni nanodot-patterned surface

Nanotechnology, 2008
Nanomechanical properties of a Ni nanodot-patterned surface (NDPS) on a Si substrate were investigated using nanoindentation. The Ni NDPS was fabricated by thermal evaporation of Ni through a porous anodized aluminum oxide template onto a Si substrate. Plan-view transmission electron microscopy and nanobeam diffraction were used to characterize the Ni ...
H, Wang, M, Zou, P R, Larson, E S, Sanchez, K L, Hobbs, M E, Curtis, M B, Johnson, O K, Awitor   +7 more
openaire   +2 more sources

Ultrastructure and nanomechanical properties of cementum dentin junction

Journal of Biomedical Materials Research Part A, 2003
AbstractThe attachment between cementum and dentin has been given several definitions and nomenclature, including: interzonal layer, intermediate cementum, collagen hiatus, Hopewell‐Smith's hyaline layer, and more commonly, cementum–dentin junction (CDJ).
S P, Ho, M, Balooch, H E, Goodis, G W, Marshall, S J, Marshall   +4 more
openaire   +2 more sources

Effect of bracket bonding on nanomechanical properties of enamel

American Journal of Orthodontics and Dentofacial Orthopedics, 2010
In this study, we investigated the nanohardness and elastic modulus of enamel after debonding metal brackets.The surfaces of 3 maxillary premolars were subdivided into 3 regions. Two regions were exposed to a conventional etching system (Transbond XT, 3M Unitek, Monrovia, Calif) and a self-etching system (Transbond Plus primer, 3M Unitek); the third ...
Masahiro, Iijima, Takeshi, Muguruma, William A, Brantley, Shuichi, Ito, Toshihiro, Yuasa, Takashi, Saito, Itaru, Mizoguchi   +6 more
openaire   +2 more sources

Direct Observation of Nanomechanical Properties of Chromatin in Living Cells

Nano Letters, 2007
Precise manipulation of nanometer-sized magnetic particles using magnetic tweezers has yielded insights into the rheology of the cell cytoplasm. We present first results using this approach to study the nanomechanics of the cell nucleus. Using a custom-designed micro-magnetic-tweezers instrument, we can achieve sufficiently high magnetic forces ...
de Vries, A.H., Krenn, B.E., van Driel, R., Subramaniam, V., Kanger, J.S.   +4 more
openaire   +4 more sources

Nanomechanical properties of molecular deposition film

Journal of Wuhan University of Technology-Mater. Sci. Ed., 2005
Two nanomechanical properties of the molecular deposition (MD) film deposited on the Au substrate were studied. The first is its nanotribological property investigated by an atomic force microscope, which indicates that the deposition of the MD film could reduce the frictional force.
Lan Huiqing, Li Decai, Zhang Siwei
openaire   +1 more source

Nanomechanical properties of hafnium nitride coating

Scripta Materialia, 2008
Nanomechanical properties of plasma-sprayed HfN coating with and without hot isostatic pressing (HIP) treatment were evaluated using nanoindentation. For HIPed HfN coating, the elastic modulus (E) and yield strength increase whereas the hardness (H), H/E ratio and fraction of the elastic work decrease.
Yao Chen, Tapas Laha, Kantesh Balani, Arvind Agarwal   +3 more
openaire   +1 more source