Low-cost fabrication of a pH sensor based on writing directly over parchment-type paper with pencil

• Main Authors: Al-Hardan, Naif H., Hamid, Muhammad Azmi Abdul, Keng, Lim Kar, AL-Khalqi, Ensaf Mohammed, Jalar, Azman, Chiu, Wee Siong
• Format: Article
• Published: Springer 2021
• Subjects: Q Science (General); QC Physics
• Online Access: http://eprints.um.edu.my/28431/

Herein, we introduce a low-cost and straightforward method for preparing pH sensors based on parchment-type paper and pencil traces as a base and electrode, respectively. The hydrophobic feature of the parchment paper supports the relatively long life of the proposed pH sensor. The results indicate...