Functionalized fiber optic probe for monitoring fruit ripening

. Shwinky; Girish Chandra Mohanta; Sudipta S. Pal

doi:10.1117/12.2669804

11 May 2023 Functionalized fiber optic probe for monitoring fruit ripening

. Shwinky, Girish Chandra Mohanta, Sudipta S. Pal

Proceedings Volume 12638, Women in Optics and Photonics in India 2022; 1263809 (2023) https://doi.org/10.1117/12.2669804
Event: Women in Optics and Photonics in India, 2022, Bangalore, India

Abstract

Calcium carbide has been long used as artificial fruit ripening agent. However, calcium carbide is not only highly toxic, but also carcinogenic in nature leading to its ban in the most of the countries. Furthermore, to prevent its use, various government regulatory bodies recommended adopting the natural ripening agent ethylene in artificial ripening centers. Generally, 10-150 ppm of ethylene is utilized in ripening centers. Gas sensing using optical fiber sensors is becoming increasingly important in many areas due to the advantage of fast response, high sensitivity, lower cost, possibility for remote sensing. Accordingly, in this work, we have integrated a fiber optic probe with sensing material for the detection of ethylene vapors in the permissible range. The ethylene gas is known to exhibit sensitivity towards coinage metals specifically copper (Cu). We therefore utilized Cu-salt impregnated fluorescent polymers and Cu-based metal-organicframeworks (MOFs) as sensing materials to detect ethylene in different sensing modes; fluorescence, evanescent wave absorption sensor.

Citation Download Citation

. Shwinky, Girish Chandra Mohanta, and Sudipta S. Pal "Functionalized fiber optic probe for monitoring fruit ripening", Proc. SPIE 12638, Women in Optics and Photonics in India 2022, 1263809 (11 May 2023); https://doi.org/10.1117/12.2669804

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