Next Article in Journal
Fast Thermal Calibration of Low-Grade Inertial Sensors and Inertial Measurement Units
Next Article in Special Issue
A Silicon Nanomembrane Detector for Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) of Large Proteins
Previous Article in Journal
Temperature Stability of the Sky Quality Meter
Previous Article in Special Issue
Improved Adhesion of Gold Thin Films Evaporated on Polymer Resin: Applications for Sensing Surfaces and MEMS
Article

Determination of the Elastic Properties of Tomato Fruit Cells with an Atomic Force Microscope

Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4, Lublin 20-290, Poland
*
Author to whom correspondence should be addressed.
Sensors 2013, 13(9), 12175-12191; https://doi.org/10.3390/s130912175
Received: 9 July 2013 / Revised: 23 August 2013 / Accepted: 5 September 2013 / Published: 11 September 2013
(This article belongs to the Special Issue Nanomechanical Sensors)
Since the mechanical properties of single cells together with the intercellular adhesive properties determine the macro-mechanical properties of plants, a method for evaluation of the cell elastic properties is needed to help explanation of the behavior of fruits and vegetables in handling and food processing. For this purpose, indentation of tomato mesocarp cells with an atomic force microscope was used. The Young’s modulus of a cell using the Hertz and Sneddon models, and stiffness were calculated from force-indentation curves. Use of two probes of distinct radius of curvature (20 nm and 10,000 nm) showed that the measured elastic properties were significantly affected by tip geometry. The Young’s modulus was about 100 kPa ± 35 kPa and 20 kPa ± 14 kPa for the sharper tip and a bead tip, respectively. Moreover, large variability regarding elastic properties (>100%) among cells sampled from the same region in the fruit was observed. We showed that AFM provides the possibility of combining nano-mechanical properties with topography imaging, which could be very useful for the study of structure-related properties of fruits and vegetables at the cellular and sub-cellular scale. View Full-Text
Keywords: AFM; indentation; tomato; cell; Young’s modulus; Hertz; Sneddon; stiffness; texture; biomechanics AFM; indentation; tomato; cell; Young’s modulus; Hertz; Sneddon; stiffness; texture; biomechanics
Show Figures

MDPI and ACS Style

Zdunek, A.; Kurenda, A. Determination of the Elastic Properties of Tomato Fruit Cells with an Atomic Force Microscope. Sensors 2013, 13, 12175-12191. https://doi.org/10.3390/s130912175

AMA Style

Zdunek A, Kurenda A. Determination of the Elastic Properties of Tomato Fruit Cells with an Atomic Force Microscope. Sensors. 2013; 13(9):12175-12191. https://doi.org/10.3390/s130912175

Chicago/Turabian Style

Zdunek, Artur, and Andrzej Kurenda. 2013. "Determination of the Elastic Properties of Tomato Fruit Cells with an Atomic Force Microscope" Sensors 13, no. 9: 12175-12191. https://doi.org/10.3390/s130912175

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop