Ms. Julia Molitor Profile

Julia Molitor

at Univ of North Texas

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 6 June 2024 Presentation + Paper

Inkjet-printed 2-D conductors for electromyography (EMG) electrodes in biosensing applications

Allyson Tesky, Sujan Aryal, Julia Molitor, Anupama Kaul

Proceedings Volume 13059, 1305907 (2024) https://doi.org/10.1117/12.3011853

KEYWORDS: Electrodes, Graphene, Signal to noise ratio, Electromyography, Printing, Biosensing, Inkjet technology, Skin

Read Abstract +

Graphene, a single sheet of carbon atoms arranged in a two-dimensional (2-D) honeycomb lattice extracted from bulk three-dimensional (3-D) graphite, has shown great promise towards low-profile sensing applications. Several studies have demonstrated its potential in acquiring 2-D electrophysiological measurements of the human body including the use of electromyography (EMG). Electromyograms require a minimum of two electrodes, making them a cost-effective option for the study of 2-D conductors interfaced to the human body. Although EMG signals are typically no more than 5 mV, they can be easily visualized through amplification with a gain resistor on a prototype circuit. In this study, preliminary EMG measurements of antagonist-agonist muscle pairs are collected through utilization of commercial electrodes to yield statistically significant results on the effect of gain on the Signal-to-Noise-Ratio (SNR) and on quantitative measurements of muscle force and associated amplitude. This information is then applied towards the exploration of producing graphene electrodes for biosensing. Presently, there have been limited studies on inkjet-printed electrodes for this purpose, with methods typically favoring screen-printing techniques. Therefore, there is value in analyzing reliable fabrication methods with graphene ink towards the production of devices for strain-dependent sensing and biosensing. To do this, graphene ink was processed via liquid-phase exfoliation with a mixture of graphite powder with typical solvents and other additives. This ink was printed on an SiO2/Si substrate to form electrodes for voltage testing in addition to electrode formation on flexible substrates for dynamic strain sensing. Here the conductivity was verified through strain-dependent testing, and the flexible graphene devices demonstrated live current changes at variable bending angles and in opposite profiles which we discuss in this work.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years