Polydopamine-nanocellulose nanocomposites: physical and electrical properties for biomedical electrodes

Sunanda Roy; Swarup Roy; Ruth M. Muthoka; Hyun Chan Kim; Hargsoon Yoon; Jaehwan Kim

doi:10.1117/12.2513875

27 March 2019 Polydopamine-nanocellulose nanocomposites: physical and electrical properties for biomedical electrodes

Sunanda Roy, Swarup Roy, Ruth M. Muthoka, Hyun Chan Kim, Hargsoon Yoon, Jaehwan Kim

Proceedings Volume 10969, Nano-, Bio-, Info-Tech Sensors and 3D Systems III; 1096905 (2019) https://doi.org/10.1117/12.2513875
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

Abstract

Surface-functionalizations are of essential importance for diverse areas from biomedicine to biosensing, nanocomposites, water treatment, and energy harvesting devices. One facile and rapid way to functionalize any materials surface is by mussel inspired polydopamine (PDA) coating. It has been realized that dopamine (DA), the precursor, can be coated virtually on any substrates in presence of a buffer of pH ~ 8.5. Over the past 20 years, an overwhelming interest has been noticed around cellulose based materials specially nanofibers (CNFs) shown due to its many unique characteristics including high stiffness and modulus, great transparency well biodegradability, biocompatibility and low production cost. Despite of the facts, pristine cellulose often suffers from certain characteristic limitations in biomaterial applications due to the lack of appropriate surface functionalities. This research therefore aims to develop cellulose based composite materials suitable for biomedical applications, precisely electrode material for biosensors. The electrodes were made of controlled amount of polydopamine treated cellulose nanofiber composite. When investigated the mechanical properties of the composites, significant improvement was observed. Moreover, the composites exhibited good sensing behaviors under electrochemical investigations, leading them to be a promising material for biosensing applications.

Citation Download Citation

Sunanda Roy, Swarup Roy, Ruth M. Muthoka, Hyun Chan Kim, Hargsoon Yoon, and Jaehwan Kim "Polydopamine-nanocellulose nanocomposites: physical and electrical properties for biomedical electrodes", Proc. SPIE 10969, Nano-, Bio-, Info-Tech Sensors and 3D Systems III, 1096905 (27 March 2019); https://doi.org/10.1117/12.2513875

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available