Project's information

Project's title All ink-jet printed FET device using carbonaceous nanomaterials for early diagnosis of Sepsis
Project’s code QTFR01.02/19-20
Research hosting institution Hanoi University of Science & Technology
Coordinating unit, co-chair CNRS- France
Project leader’s name Dr. Nguyen Thi Thanh Ngan
Project duration 01/01/2019 - 31/12/2021
Project’s budget 200 million VND
Classify Excellent
Goal and objectives of the project

To develop field effect transistor (FET) sensor basing on graphene-based material by using ink-jet printer and diagnosis of Sepsis infection.

Main results

This project has synthesized reduced graphene oxide (rGO) material by chemical methods. rGO was then applied in the field effect transistor (FET) sensor to detect the neurotransmitter actetylthiocholine. The sensitivity of FET sensor was enhanced due to the presence of rGO in the FET channel (between drain and source electrodes). The limit of detection (LOD) value was 250 µM and the sensitivity was estimated to be 2.0 µA.

rGO was also formulated with different ink recipes and used for DMP-2831 ink jet printer. This work carried out at the laboratory of our partner (Itodys laboratory, University of Paris Diderot).

All-inkjet-printed has been strongly developed in our partner group. Besides the graphene inks, we are now developing rGO ink. The optimization the synthesis process and also the quality of rGO are mainly duties of our research group.

This project have contributed to results of 02 master theses.

Novelty and actuality and scientific meaningfulness of the results

The sensitivity and electron transfer of FET device were enhanced by rGO modified FET channel. Different ink formulas were developed and can be used for inkjet printer.

Products of the project

- Publications:
[1] Thi Thu Vu, Thi Ngoc Nga Dau, Cong Thanh Ly, Do Chung Pham, Thi Thanh Ngan Nguyen, and Van Trinh Pham, Aqueous electrodeposition of (AuNPs/MWCNT-PEDOT) composite for high-affinity acetylcholinesterase electrochemical sensors, Journal of Materials Science 55 (2020) 9070-9081.
[2] Nguyen Thi Thanh Ngan, Nguyen Danh Thanh, Nguyen Thi Lan, Duong Thanh Tung, Cao Thi Thanh, Nguyen Van Chuc, Vu Thi Thu, Liquid-gated field-effect-transistor based on chemically reduced graphene oxide for sensing neurotransmitter acetylthiocholine, Communications in Physics 32(3) (2022). DOI:
- Training results: 02 master students


Our research group greatly appreciate the support received from Vietnam Academy of Science and Technology for our exchange scientific activities with our partner at Itodys laboratory – University of Paris Diderot.

Images of project