PMID- 29443890 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240214 IS - 2073-4425 (Print) IS - 2073-4425 (Electronic) IS - 2073-4425 (Linking) VI - 9 IP - 2 DP - 2018 Feb 14 TI - Embedded Disposable Functionalized Electrochemical Biosensor with a 3D-Printed Flow Cell for Detection of Hepatic Oval Cells (HOCs). LID - 10.3390/genes9020089 [doi] LID - 89 AB - Hepatic oval cells (HOCs) are considered the progeny of the intrahepatic stem cells that are found in a small population in the liver after hepatocyte proliferation is inhibited. Due to their small number, isolation and capture of these cells constitute a challenging task for immunosensor technology. This work describes the development of a 3D-printed continuous flow system and exploits disposable screen-printed electrodes for the rapid detection of HOCs that over-express the OV6 marker on their membrane. Multiwall carbon nanotube (MWCNT) electrodes have a chitosan film that serves as a scaffold for the immobilization of oval cell marker antibodies (anti-OV6-Ab), which enhance the sensitivity of the biomarker and makes the designed sensor specific for oval cells. The developed sensor can be easily embedded into the 3D-printed flow cell to allow cells to be exposed continuously to the functionalized surface. The continuous flow is intended to increase capture of most of the target cells in the specimen. Contact angle measurements were performed to characterize the nature and quality of the modified sensor surface, and electrochemical measurements (cyclic voltammetry (CV) and square wave voltammetry (SWV)) were performed to confirm the efficiency and selectivity of the fabricated sensor to detect HOCs. The proposed method is valuable for capturing rare cells and could provide an effective tool for cancer diagnosis and detection. FAU - Damiati, Samar AU - Damiati S AUID- ORCID: 0000-0002-6747-0408 AD - Department of Biochemistry, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia. sdamiati@kau.edu.sa. AD - Institute for Synthetic Bioarchitecture, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria. sdamiati@kau.edu.sa. FAU - Peacock, Martin AU - Peacock M AD - Zimmer and Peacock Ltd., Royston SG8 9JL, UK. martinpeacock@zimmerpeacock.com. FAU - Leonhardt, Stefan AU - Leonhardt S AD - Institute of Medical and Polymer Engineering, Technical University of Munich (TUM), 85748 Garching, Germany. stefan.leonhardt@tum.de. FAU - Damiati, Laila AU - Damiati L AD - Centre for Cell Engineering, University of Glasgow, Glasgow G12 8QQ, UK. l.damiati.1@research.gla.ac.uk. AD - Department of Biology, Jeddah University, Jeddah 23218, Saudi Arabia. l.damiati.1@research.gla.ac.uk. FAU - Baghdadi, Mohammed A AU - Baghdadi MA AD - Research Centre, King Faisal Specialist Hospital & Research Centre, Jeddah 21499, Saudi Arabia. m-baghdadi@hotmail.com. FAU - Becker, Holger AU - Becker H AUID- ORCID: 0000-0002-7678-2518 AD - Microfluidic ChipShop Gmbh, 07747 Jena, Germany. hb@microfluidic-chipshop.com. FAU - Kodzius, Rimantas AU - Kodzius R AUID- ORCID: 0000-0001-9417-8894 AD - Mathematics and Natural Sciences Department, The American University of Iraq, Sulaimani, Sulaymaniyah 46001, Iraq. kodzius@envirola.com. AD - Materials Genome Institute, Shanghai University, Shanghai 200444, China. kodzius@envirola.com. AD - Faculty of Medicine, Ludwig Maximilian University of Munich (LMU), 80539 Munich, Germany. kodzius@envirola.com. AD - Faculty of Medicine, Technical University of Munich (TUM), 81675 Munich, Germany. kodzius@envirola.com. FAU - Schuster, Bernhard AU - Schuster B AD - Institute for Synthetic Bioarchitecture, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria. bernhard.schuster@boku.ac.at. LA - eng GR - P 29399/FWF_/Austrian Science Fund FWF/Austria PT - Journal Article DEP - 20180214 PL - Switzerland TA - Genes (Basel) JT - Genes JID - 101551097 PMC - PMC5852585 OTO - NOTNLM OT - 3D-printed flow-cell OT - cancer diagnosis OT - hepatic oval cells OT - multiwall carbon nanotubes COIS- The authors declare no conflict of interest. EDAT- 2018/02/15 06:00 MHDA- 2018/02/15 06:01 PMCR- 2018/02/01 CRDT- 2018/02/15 06:00 PHST- 2018/01/08 00:00 [received] PHST- 2018/02/06 00:00 [revised] PHST- 2018/02/06 00:00 [accepted] PHST- 2018/02/15 06:00 [entrez] PHST- 2018/02/15 06:00 [pubmed] PHST- 2018/02/15 06:01 [medline] PHST- 2018/02/01 00:00 [pmc-release] AID - genes9020089 [pii] AID - genes-09-00089 [pii] AID - 10.3390/genes9020089 [doi] PST - epublish SO - Genes (Basel). 2018 Feb 14;9(2):89. doi: 10.3390/genes9020089.