ToF-SIMS characterization of silk fibroin and polypyrrole composite actuators

Journal Article · Sun Nov 01 00:00:00 EDT 2015 · Synthetic Metals

DOI:https://doi.org/10.1016/j.synthmet.2015.08.031· OSTI ID:1229930

Bradshaw, Nathan P.; Severt, Sean Y.; Wang, Zhaoying; Fengel, Carly V.; Larson, Jesse D.; Zhu, Zihua; Murphy, Amanda R.; Leger., Janelle M.

Biocompatible materials capable of controlled actuation under biologically relevant conditions are in high demand for use in a number of biomedical applications. Recently, we demonstrated that a composite material composed of silk biopolymer and the conducting polymer poly(pyrrole) can bend under an applied voltage using a simple bilayer device. Here we present further characterization of these bilayer actuators using time of flight secondary ion mass spectrometry, and provide clarification on the mechanism of actuation and factors affecting device performance and stability. We will discuss the results of this study in the context of strategies for optimization of device performance.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER)
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1229930
• Report Number(s): PNNL-SA-112903; 48264; KP1704020
• Journal Information: Synthetic Metals, Vol. 209; ISSN 0379-6779
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

Environmental Molecular Sciences Laboratory