Nanopatterning of micro sensor arrays for pH monitoring

O. Korostynska; K. Arshak; A. Arshak; E. Gill

doi:10.1117/12.818353

11 May 2009 Nanopatterning of micro sensor arrays for pH monitoring

O. Korostynska, K. Arshak, A. Arshak, E. Gill

Proceedings Volume 7318, Micro- and Nanotechnology Sensors, Systems, and Applications; 731810 (2009) https://doi.org/10.1117/12.818353
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

There is a need for accurate and instant measurement of pH values in a wide range of applications. The research on miniaturized polymer based pH sensors has recently emerged due to the progress made in polymer materials science. Novel method of manufacturing micro sensors arrays for biomedical applications using BioForce NanoeNabler^TM is reported. This nanopatterning system uses a liquid dispensing process via specially designed surface patterning tool (SPT), which is microfabricated cantilever with an integrated passive microfluidic system. During the deposition process, which typically takes less than 100 msec, SPT end touches the surface and a volume of fluid is instantly transferred. The NanoeNabler^TM can deliver attoliter to picoliter volumes of liquid with a high degree of spatial accuracy, which resulted in sensor heads measuring 1-2.5 μm to 30 μm. These sensors were developed for biomedical applications, in particular pH monitoring. It is envisaged that findings of this work would form the basis for miniaturised point-of-care diagnostic system. The operation of the sensing elements is based on the properties of polymers, which exhibit a change in their electrical characteristics (such as resistance or capacitance) on exposure to solutions with different concentrations of pH value.

Citation Download Citation

O. Korostynska, K. Arshak, A. Arshak, and E. Gill "Nanopatterning of micro sensor arrays for pH monitoring", Proc. SPIE 7318, Micro- and Nanotechnology Sensors, Systems, and Applications, 731810 (11 May 2009); https://doi.org/10.1117/12.818353

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