2_2015_sen_11

Title of the article METHODOLOGICAL ASPECTS OF THE MODULUS OF ELASTOMERIC MATERIALS AND BIOLOGICAL CELLS BY FORCE SPECTROSCOPY MEASUREMENT
Authors

MOHAMMED S.A.A., Postgraduate Student, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.
MELNIKOVA G.D., Junior Researcher, A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus
MAKHANIOK A.A., Cand. Phys.-Math. Sc., Senior Researcher, A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.
CHIZHIK S.A., Academician of the NAS of Belarus, Dr. Techn. Sc., Professor, First Deputy Chairman of the Presidium of the NAS of Belarus, Presidium of the NAS of Belarus, Minsk, Republic of Belarus
In the section BIOMECHANICS
Year 2015 Issue 2 Pages 80-84
Type of article RAR Index UDK 53.088.3 Index BBK  
Abstract In this article some methodological questions probe force spectroscopy at nanoindentation elastomeric materials discuss. They associated with the choice of the contact point and sliding the probe over the surface of the test material. An alternative method for choice of the contact point, in which the depth of probe's penetration into the sample becomes zero when using the model of Johnson-Kendall-Roberts proposes. It has been established that this point is located to the point of maximum adhesion force. According to nanoindentation data of erythrocyte by silicon probe with a radius of curvature of 60 nm and stiffness console 3 N/m is shown that the proposed version of the choice of the contact point provides a smaller variance the modulus of elasticity and access to a constant value of modulus of elasticity in the depth of penetration of 5-15 nm.
Keywords nanoindentation, young's modulus, contact point, Hertzian model, Johnson-Kendall-Roberts model, force spectroscopy
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