PMID- 34577681
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20211001
IS  - 2072-666X (Print)
IS  - 2072-666X (Electronic)
IS  - 2072-666X (Linking)
VI  - 12
IP  - 9
DP  - 2021 Aug 28
TI  - Rapid Inkjet-Printed Miniaturized Interdigitated Electrodes for Electrochemical 
      Sensing of Nitrite and Taste Stimuli.
LID - 10.3390/mi12091037 [doi]
LID - 1037
AB  - This paper reports on single step and rapid fabrication of interdigitated 
      electrodes (IDEs) using an inkjet printing-based approach. A commercial 
      inkjet-printed circuit board (PCB) printer was used to fabricate the IDEs on a 
      glass substrate. The inkjet printer was optimized for printing IDEs on a glass 
      substrate using a carbon ink with a specified viscosity. Electrochemical 
      impedance spectroscopy in the frequency range of 1 Hz to 1 MHz was employed for 
      chemical sensing applications using an electrochemical workstation. The IDE 
      sensors demonstrated good nitrite quantification abilities, detecting a low 
      concentration of 1 ppm. Taste simulating chemicals were used to experimentally 
      analyze the ability of the developed sensor to detect and quantify tastes as 
      perceived by humans. The performance of the inkjet-printed IDE sensor was 
      compared with that of the IDEs fabricated using maskless direct laser writing 
      (DLW)-based photolithography. The DLW-photolithography-based fabrication approach 
      produces IDE sensors with excellent geometric tolerances and better sensing 
      performance. However, inkjet printing provides IDE sensors at a fraction of the 
      cost and time. The inkjet printing-based IDE sensor, fabricated in under 2 min 
      and costing less than USD 0.3, can be adapted as a suitable IDE sensor with rapid 
      and scalable fabrication process capabilities.
FAU - Dudala, Sohan
AU  - Dudala S
AUID- ORCID: 0000-0002-5197-330X
AD  - MEMS, Microfluidics and Nanoelectronics Lab, Department of Electrical and 
      Electronics Engineering, Birla Institute of Technology and Science Pilani, 
      Hyderabad Campus, Hyderabad 500078, India.
FAU - Srikanth, Sangam
AU  - Srikanth S
AD  - MEMS, Microfluidics and Nanoelectronics Lab, Department of Electrical and 
      Electronics Engineering, Birla Institute of Technology and Science Pilani, 
      Hyderabad Campus, Hyderabad 500078, India.
AD  - Department of Mechanical Engineering, Birla Institute of Technology and Science 
      Pilani, Hyderabad Campus, Hyderabad 500078, India.
FAU - Dubey, Satish Kumar
AU  - Dubey SK
AD  - MEMS, Microfluidics and Nanoelectronics Lab, Department of Electrical and 
      Electronics Engineering, Birla Institute of Technology and Science Pilani, 
      Hyderabad Campus, Hyderabad 500078, India.
AD  - Department of Mechanical Engineering, Birla Institute of Technology and Science 
      Pilani, Hyderabad Campus, Hyderabad 500078, India.
FAU - Javed, Arshad
AU  - Javed A
AD  - MEMS, Microfluidics and Nanoelectronics Lab, Department of Electrical and 
      Electronics Engineering, Birla Institute of Technology and Science Pilani, 
      Hyderabad Campus, Hyderabad 500078, India.
AD  - Department of Mechanical Engineering, Birla Institute of Technology and Science 
      Pilani, Hyderabad Campus, Hyderabad 500078, India.
FAU - Goel, Sanket
AU  - Goel S
AUID- ORCID: 0000-0002-9739-4178
AD  - MEMS, Microfluidics and Nanoelectronics Lab, Department of Electrical and 
      Electronics Engineering, Birla Institute of Technology and Science Pilani, 
      Hyderabad Campus, Hyderabad 500078, India.
LA  - eng
PT  - Journal Article
DEP - 20210828
PL  - Switzerland
TA  - Micromachines (Basel)
JT  - Micromachines
JID - 101640903
PMC - PMC8470320
OTO - NOTNLM
OT  - inkjet printing
OT  - microfabrication
OT  - nitrite sensing
OT  - taste sensing
COIS- The authors declare no conflict of interest.
EDAT- 2021/09/29 06:00
MHDA- 2021/09/29 06:01
PMCR- 2021/08/28
CRDT- 2021/09/28 01:24
PHST- 2021/07/19 00:00 [received]
PHST- 2021/08/23 00:00 [revised]
PHST- 2021/08/25 00:00 [accepted]
PHST- 2021/09/28 01:24 [entrez]
PHST- 2021/09/29 06:00 [pubmed]
PHST- 2021/09/29 06:01 [medline]
PHST- 2021/08/28 00:00 [pmc-release]
AID - mi12091037 [pii]
AID - micromachines-12-01037 [pii]
AID - 10.3390/mi12091037 [doi]
PST - epublish
SO  - Micromachines (Basel). 2021 Aug 28;12(9):1037. doi: 10.3390/mi12091037.