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3D Printing Technologies in Electrochemical (Bio)Sensing
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3D Printing Technologies in Electrochemical (Bio)Sensing

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (30 June 2020) | Viewed by 9792

Special Issue Editor

Prof. Dr. Christos Kokkinos

E-Mail Website
Guest Editor
Department of Chemistry, National and Kapodistrian University of Athens, 11527 Athens, Greece
Interests: low-cost sensors; 3D printing; microengineering; biosensors; immunosensors; trace metal analysis; electrochemistry; quantum dots; nanoparticles
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

I would like to invite you to participate in a special issue on “3D Printing Technologies in Electrochemical (Bio)Sensing”. Today, a key challenge in the research community is the development of smart analytical (bio)devices which can monitor significant analytes and biomarkers. The adoption of 3D-printing technologies by the research field of electrochemical sensors has gained high levels of interest as they provide the ability to produce customized devices and sensing systems that previously required more complicated and specialized procedures to manufacture.

This Special Issue aims to highlight advances in the fabrication, modification, analytical usefulness of 3D-based sensors.

Contributions to this Special Issue may include, but are not limited to:

  • Sensors produced or modified via 3D Printing Technologies
  • Application of 3D-printed sensors in electrochemistry and bioelectrochemistry
  • Advances in materials for 3D printing including their characterization, modification, activation and their for application in electrochemical (bio)sensing
  • Fabrication and application of 3D-printed electrochemical accessories

Dr. Kokkinos Christos
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • 3D printing
  • electrochemistry
  • sensors
  • biosensors
  • immunosensors
  • trace metals analysis
  • biosensing

Published Papers (2 papers)

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16 pages, 2773 KiB  
Article
3D-Printed Flow Cells for Aptamer-Based Impedimetric Detection of E. coli Crooks Strain
by Ina G. Siller, John-Alexander Preuss, Katharina Urmann, Michael R. Hoffmann, Thomas Scheper and Janina Bahnemann
Sensors 2020, 20(16), 4421; https://doi.org/10.3390/s20164421 - 07 Aug 2020
Cited by 24 | Viewed by 5902
Abstract
Electrochemical spectroscopy enables rapid, sensitive, and label-free analyte detection without the need of extensive and laborious labeling procedures and sample preparation. In addition, with the emergence of commercially available screen-printed electrodes (SPEs), a valuable, disposable alternative to costly bulk electrodes for electrochemical (bio-)sensor [...] Read more.
Electrochemical spectroscopy enables rapid, sensitive, and label-free analyte detection without the need of extensive and laborious labeling procedures and sample preparation. In addition, with the emergence of commercially available screen-printed electrodes (SPEs), a valuable, disposable alternative to costly bulk electrodes for electrochemical (bio-)sensor applications was established in recent years. However, applications with bare SPEs are limited and many applications demand additional/supporting structures or flow cells. Here, high-resolution 3D printing technology presents an ideal tool for the rapid and flexible fabrication of tailor-made, experiment-specific systems. In this work, flow cells for SPE-based electrochemical (bio-)sensor applications were designed and 3D printed. The successful implementation was demonstrated in an aptamer-based impedimetric biosensor approach for the detection of Escherichia coli (E. coli) Crooks strain as a proof of concept. Moreover, further developments towards a 3D-printed microfluidic flow cell with an integrated micromixer also illustrate the great potential of high-resolution 3D printing technology to enable homogeneous mixing of reagents or sample solutions in (bio-)sensor applications. Full article
(This article belongs to the Special Issue 3D Printing Technologies in Electrochemical (Bio)Sensing)
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10 pages, 1281 KiB  
Letter
Voltammetric Determination of Pb(II) by a Ca-MOF-Modified Carbon Paste Electrode Integrated in a 3D-Printed Device
by Evaggelia Vlachou, Antigoni Margariti, Giannis S. Papaefstathiou and Christos Kokkinos
Sensors 2020, 20(16), 4442; https://doi.org/10.3390/s20164442 - 09 Aug 2020
Cited by 11 | Viewed by 3344
Abstract
In this work, a voltammetric method based on a metal organic framework (Ca-MOF)-modified carbon paste electrode for lead determination was developed. The MOF-based electrode was packed in a new type of 3D-printed syringe-type integrated device, which was entirely fabricated by a dual extruder [...] Read more.
In this work, a voltammetric method based on a metal organic framework (Ca-MOF)-modified carbon paste electrode for lead determination was developed. The MOF-based electrode was packed in a new type of 3D-printed syringe-type integrated device, which was entirely fabricated by a dual extruder 3D printer. After optimization of the operational parameters, a limit of detection of 0.26 µg L−1 Pb(II) was achieved, which is lower than that of existing MOF-based lead sensors. The device was used for Pb(II) determination in fish feed and bottled water samples with high accuracy and reliability. The proposed sensor is suitable for on-site analyses and provides a low-cost integrated transducer for the ultrasensitive routine detection of lead in practical applications. Full article
(This article belongs to the Special Issue 3D Printing Technologies in Electrochemical (Bio)Sensing)
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