NanoWorld AG CEO Manfred Detterbeck is attending @nanokorea , the 17th International Nanotech Symposium & Exhibition , which is currently being held from July 2-5 2019 at KINTEX, Korea. Will we meet you there too?
Meet us at NanoKorea 2019
Tag: AFM cantilever
Piezoelectricity of green carp scales
Today is Children’s Day in Japan and many mulit-colored carp-shaped koinobori streamers will flutter in the wind.
So it is the perfect day to share the publication “Piezoelectricity of green carp scales” by Y. Jiang et al. with you.
Piezoelectricity takes part in multiple important functions and processes in biomaterials often vital to the survival of organisms. In their publication , “Piezoelectricity of green carp scales” Y. Jiang et al. investigate the piezoelectric properties of fish scales of green carp by directly examining their morphology at nanometer levels. From the clear distinctions between the composition of the inner and outer surfaces of the scales that could be found, the authors identified the piezoelectricity to originate from the presence of hydroxyapatite which only exists on the surface of the fish scales.*
These findings reveal a different mechanism of how green carp are sensitive to their surroundings and should be helpful to studies related to the electromechanical properties of marine life and the development of bio-inspired materials. As easily accessible natural polymers, fish scales can be employed as highly sensitive piezoelectric materials in high sensitive and high speed devices as well as be exploited for invasive diagnostics and other biomedical implications.*
For the harmonic responses of both 1st order and 2nd order described in this publication, NanoWorld Arrow-CONTPt AFM probes were used.
*Y. Jiang, F. Yen, C. W. Huang, R. B. Mei, and L. Chen
Piezoelectricity of green carp scales
AIP Advances 7, 045215 (2017)
DOI: https://doi.org/10.1063/1.4979503
Please follow this external link to access the full article: https://aip.scitation.org/doi/full/10.1063/1.4979503
Open Access The article “Piezoelectricity of green carp scales” by Y. Jiang, F. Yen, C. W. Huang, R. B. Mei and L. Chen is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Rapid changes in tissue mechanics regulate cell behaviour in the developing embryonic brain
In their short report “Rapid changes in tissue mechanics regulate cell behaviour in the developing embryonic brain” published in January 2019, Amelia J Thompson, Eva K Pillai, Ivan B Dimov, Sarah K Foster, Christine E Holt, and Kristian Franze describe how they used time-lapse in vivo atomic force microscopy (tiv-AFM), a method that combines sensitive upright epi-fluorescence imaging of opaque samples, with iterated AFM indentation measurements of in vivo tissue at cellular resolution and at a time scale of tens of minutes, in order to enable time-resolved measurements of developmental tissue mechanics.*
The technique developed by Thompson, Pillai et al. is a useful tool that can help elucidate how variations in stiffness control the brain wiring process. It could also be used to look into how other developmental or regenerative processes, such as the way neurons reconnect after injuries to thebrain or spinal cord, may be regulated by mechanical tissue properties.*
NanoWorld Arrow-TL1 tipless cantilevers were used for the AFM-based stiffness measurements. (Monodisperse spherical polystyrene beads were glued to the cantilever ends as probes.)
*Amelia J Thompson, Eva K Pillai, Ivan B Dimov, Sarah K Foster, Christine E Holt, Kristian Franze
Rapid changes in tissue mechanics regulate cell behaviour in the developing embryonic brain
eLife 2019; 8:e39356
DOI: https://doi.org/10.7554/eLife.39356
Please follow this external link to the full article: https://cdn.elifesciences.org/articles/39356/elife-39356-v1.pdf
Open Access: The article « Rapid changes in tissue mechanics regulate cell behaviour in the developing embryonic brain » by Amelia J Thompson et al. is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.