ORCID Profile
0000-0002-4596-3009
Current Organisations
Inha University
,
Kumoh National Institute of Technology
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Publications
Flexible NO2 sensors from renewable cellulose nanocrystals/iron oxide composites
Publisher: Elsevier BV
Date: 10-2016
Electroactive and Optically Adaptive Bionanocomposite for Reconfigurable Microlens
Publisher: American Chemical Society (ACS)
Date: 17-05-2016
Abstract: This paper introduces an electroactive bionanocomposite based on poly(diethylene glycol adipate) (PDEGA) and cellulose nanocrystals (CNCs). The bionanocomposites were made using CNCs extracted from cotton and by optimizing its concentration in terms of the optical transmittance and viscosity. The characteristic properties of the materials were analyzed using contact angle measurements and Fourier transformation infrared spectra. Using the PDEGA/CNC bionanocomposite at a very low concentration of CNCs, a configurable lens having a robust, self-contained tunable optical structure was developed. The shape and curvature of the soft PDEGA/CNC device were controlled by applying voltage, and the focal length was measured. The simple structure, high optical transparency, biodegradability, thermal stability, high durability, and low power consumption make the new material particularly useful in fabricating a reconfigurable lens for future electronic and optical devices.
Transparent and flexible haptic array actuator made with cellulose acetate for tactile sensation
Publisher: SPIE
Date: 16-04-2014
DOI: 10.1117/12.2044969
A neuronal DNA damage response is detected at the earliest stages of Alzheimer's neuropathology and correlates with cognitive impairment in the Medical Research Council's Cognitive Function and Ageing
Publisher: Wiley
Date: 23-04-2015
DOI: 10.1111/NAN.12202
Transparent and flexible haptic actuator based on cellulose acetate stacked membranes
Publisher: Springer Science and Business Media LLC
Date: 06-2015
Fabrication and finite element analysis of vibrating parallel film actuator made with cellulose acetate for potential haptic application
Publisher: SAGE Publications
Date: 09-08-2016
Abstract: The present study investigates a film actuator made with dielectric cellulose acetate films separated by narrow spacers as a means of electrostatic actuation for potential haptic application. Fabrication process for the actuator is explained along with experiments conducted over a wide frequency range of actuation frequency. A valid finite element simulation of the actuator is made on the quarter section of the actuator by using full 3D finite elements. Vibration characteristics such as fundamental natural frequency, mode shape and output velocity in the frequency range for haptic feeling generation are obtained from the finite element analysis and compared with the experimental results. Experimental results demonstrate that the finite element model is practical and effective enough in predicting the vibration characteristics of the actuator for haptic application. The film actuator shows many promising properties like high transparency, wide range of actuation frequency and high vibration velocity for instance.
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Related Funding Activities
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