Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/31097
Title: Influence of diamond crystal orientation on the interaction with biological matter
Authors: Damle, Viraj
Wu, Kaiqi
De Luca, Oreste
Ortí-Casañ, Natalia
Norouzi, Neda
Morita, Aryan
de Vries , Joop
Kaper, Hans
Zuhorn, Inge S.
Eisel, Ulrich
VANPOUCKE, Danny E.P. 
Rudolf, Petra
Schirhagl, Romana
Issue Date: 2020
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Source: CARBON, 162 , p. 1 -12
Abstract: Diamond has been a popular material for a variety of biological applications due to its favorable chemical, optical, mechanical and biocompatible properties. While the lattice orientation of crystalline material is known to alter the interaction between solids and biological materials, the effect of diamond's crystal orientation on biological applications is completely unknown. Here, we experimentally evaluate the influence of the crystal orientation by investigating the interaction between the <100>, <110> and <111> surfaces of the single crystal diamond with biomolecules, cell culture medium, mammalian cells and bacteria. We show that the crystal orientation significantly alters these biological interactions. Most surprising is the two orders of magnitude difference in the number of bacteria adhering on <111> surface compared to <100> surface when both the surfaces were maintained under the same condition. We also observe differences in how small biomolecules attach to the surfaces. Neurons or HeLa cells on the other hand do not have clear preferences for either of the surfaces. To explain the observed differences, we theoretically estimated the surface charge for these three low index diamond surfaces and followed by the surface composition analysis using x-ray photoelectron spectroscopy (XPS). We conclude that the differences in negative surface charge, atomic composition and functional groups of the different surface orientations lead to significant variations in how the single crystal diamond surface interacts with the studied biological entities.
Document URI: http://hdl.handle.net/1942/31097
ISSN: 0008-6223
e-ISSN: 1873-3891
DOI: 10.1016/j.carbon.2020.01.115
ISI #: WOS:000526113000001
Rights: 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Category: A1
Type: Journal Contribution
Validations: ecoom 2021
Appears in Collections:Research publications

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