Jendrlin, M, Khumngern, S, Numnuam, A, Thavarungkul, P, Kanatharana, P, Kirsanov, D, Zholobenko, VL, Mendecki, L and Radu, A (2021) Ion sensing pencil: Draw your own sensor. Sensors and Actuators B: Chemical, 337. ISSN 0925-4005

[thumbnail of ISP-paper (1).pdf] Text
ISP-paper (1).pdf - Accepted Version
Restricted to Repository staff only until 15 March 2023.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (1MB)


We demonstrate for the first time the concept of ion sensing pencil (ISP). The pencil’s lead carries chemical sensing functionality and is constructed by compression of graphite and zeolite, while the clutch is prepared by 3D printing. The ISP can be used to draw a chemical sensor by simple abrasion onto a hydrophobic surface. The ISP can be stored at home, used immediately off-the-shelf without any handling prior to measurements. It’s simple preparation, handling, and measuring protocols offer the possibility of integration into large scale sensor networks or to be offered to the general public for use at home using readout devices already present at many homes. We demonstrate the chemical functionality of ISP by producing 14 ISPs prepared by compression of graphite and one of 14 different zeolites individually in 60:40 wt%. These ISPs are then used to draw electrodes which were characterized in analogy to ion-selective electrodes. The ISP-drawn electrodes were utilized as a multi-sensor array for the determination of water quality in a model sample, which is a first reported case of using zeolite-based electrodes in multisystem arrays, followed by the demonstration of their potential to be used by non-trained personnel. The implementation ISPs in potentiometric detection holds promise for further development of inexpensive and accessible tools for obtaining chemical information in areas where utilization of chemical sensors is currently limited.

Item Type: Article
Additional Information: This is the accepted author manuscript (AAM). The final published version (version of record) is available online via Elsevier at - Please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: Zeolite; Chemometrics; Multi-sensor system; Analysis of complex mixturesa
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 28 May 2021 14:21
Last Modified: 04 Jun 2021 13:31

Actions (login required)

View Item
View Item