Mechanical behavior of microstructures from a chemo-responsive polymer nanocomposite based on cotton cellulose nanofibers

A. E. Hess; K. Shanmuganathan; J. R. Capadona; L. Hsu; S. Rowan; C. Weder; D. J. Tyler; C. A. Zorman

doi:10.1109/MEMSYS.2011.5734459

Mechanical behavior of microstructures from a chemo-responsive polymer nanocomposite based on cotton cellulose nanofibers

A. E. Hess, K. Shanmuganathan, J. R. Capadona, L. Hsu, S. Rowan, C. Weder, D. J. Tyler, C. A. Zorman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

This paper reports on the fabrication and characterization of MEMS-scale devices from a mechanically dynamic polymer nanocomposite, consisting of a cotton-derived cellulose nanofibers encased in a poly(vinyl acetate) matrix, with a stiffness modulated by the presence or absence of water. Microtensile testing showed that the Young's modulus (E) of the nanocomposite is initially ∼2.7 GPa, but reduces to ∼4 MPa upon immersion in water for 7 minutes. A combination of laser-micromachining and lithographic processing was used to produce an intracortical probe with switchable stiffness based on the dynamic nanocomposite. An electrode with area 2800 μm² was found to have an impedance of 156 kΩ at 1 kHz. This investigation was the first time that a chemoresponsive nanocomposite based on cotton cellulose nanofibers was used in MEMS-scale structures.

Original language	English
Title of host publication	2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, MEMS 2011
Pages	453-456
Number of pages	4
DOIs	https://doi.org/10.1109/MEMSYS.2011.5734459
Publication status	Published - 2011
Externally published	Yes
Event	24th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2011 - Cancun Duration: 2011 Jan 23 → 2011 Jan 27

Other

Other	24th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2011
City	Cancun
Period	11/1/23 → 11/1/27

ASJC Scopus subject areas

Electrical and Electronic Engineering
Mechanical Engineering
Condensed Matter Physics
Electronic, Optical and Magnetic Materials

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10.1109/MEMSYS.2011.5734459

Cite this

Hess, A. E., Shanmuganathan, K., Capadona, J. R., Hsu, L., Rowan, S., Weder, C., Tyler, D. J., & Zorman, C. A. (2011). Mechanical behavior of microstructures from a chemo-responsive polymer nanocomposite based on cotton cellulose nanofibers. In 2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, MEMS 2011 (pp. 453-456). [5734459] https://doi.org/10.1109/MEMSYS.2011.5734459

Mechanical behavior of microstructures from a chemo-responsive polymer nanocomposite based on cotton cellulose nanofibers. / Hess, A. E.; Shanmuganathan, K.; Capadona, J. R. et al.

2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, MEMS 2011. 2011. p. 453-456 5734459.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hess, AE, Shanmuganathan, K, Capadona, JR, Hsu, L, Rowan, S, Weder, C, Tyler, DJ & Zorman, CA 2011, Mechanical behavior of microstructures from a chemo-responsive polymer nanocomposite based on cotton cellulose nanofibers. in 2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, MEMS 2011., 5734459, pp. 453-456, 24th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2011, Cancun, 11/1/23. https://doi.org/10.1109/MEMSYS.2011.5734459

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abstract = "This paper reports on the fabrication and characterization of MEMS-scale devices from a mechanically dynamic polymer nanocomposite, consisting of a cotton-derived cellulose nanofibers encased in a poly(vinyl acetate) matrix, with a stiffness modulated by the presence or absence of water. Microtensile testing showed that the Young's modulus (E) of the nanocomposite is initially ∼2.7 GPa, but reduces to ∼4 MPa upon immersion in water for 7 minutes. A combination of laser-micromachining and lithographic processing was used to produce an intracortical probe with switchable stiffness based on the dynamic nanocomposite. An electrode with area 2800 μm2 was found to have an impedance of 156 kΩ at 1 kHz. This investigation was the first time that a chemoresponsive nanocomposite based on cotton cellulose nanofibers was used in MEMS-scale structures.",

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AU - Tyler, D. J.

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AB - This paper reports on the fabrication and characterization of MEMS-scale devices from a mechanically dynamic polymer nanocomposite, consisting of a cotton-derived cellulose nanofibers encased in a poly(vinyl acetate) matrix, with a stiffness modulated by the presence or absence of water. Microtensile testing showed that the Young's modulus (E) of the nanocomposite is initially ∼2.7 GPa, but reduces to ∼4 MPa upon immersion in water for 7 minutes. A combination of laser-micromachining and lithographic processing was used to produce an intracortical probe with switchable stiffness based on the dynamic nanocomposite. An electrode with area 2800 μm2 was found to have an impedance of 156 kΩ at 1 kHz. This investigation was the first time that a chemoresponsive nanocomposite based on cotton cellulose nanofibers was used in MEMS-scale structures.

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Mechanical behavior of microstructures from a chemo-responsive polymer nanocomposite based on cotton cellulose nanofibers

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