Helical Nanomachines as Mobile Viscometers

Ghosh, Arijit and Dasgupta, Debayan and Pal, Malay and Morozov, Konstantin I and Leshansky, Alexander M and Ghosh, Ambarish (2018) Helical Nanomachines as Mobile Viscometers. In: ADVANCED FUNCTIONAL MATERIALS, 28 (25, SI).

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Abstract

A wide variety of applications are envisioned and demonstrated with artificial micro- and nanomachines, ranging from targeted drug or gene delivery, microsurgery, environmental sensing, and many more. Here, it is demonstrated how helical nanomachines can be used to measure and map the local mechanical properties of a complex heterogeneous environment. The positions of the nanomachines are precisely controlled using externally applied magnetic fields, while their instantaneous orientations provide estimation of the viscosity of the surrounding medium with high spatial and temporal accuracy. The measurement technique can be applied to both Newtonian as well as shear thinning media, and all experimental results are in good agreement with the theoretical analysis. It is believed that this novel application of helical nanomachines can be particularly relevant to biophysical studies and microfluidic technologies.

Item Type:	Journal Article
Publication:	ADVANCED FUNCTIONAL MATERIALS
Publisher:	WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
Additional Information:	Copyright of this article belong to WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering Division of Physical & Mathematical Sciences > Physics
Date Deposited:	16 Jul 2018 15:40
Last Modified:	16 Jul 2018 15:40
URI:	http://eprints.iisc.ac.in/id/eprint/60181

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