PMID- 33081162 OWN - NLM STAT- MEDLINE DCOM- 20210415 LR - 20210415 IS - 2079-6374 (Electronic) IS - 2079-6374 (Linking) VI - 10 IP - 10 DP - 2020 Oct 16 TI - Fabrication and Characterization of Simple Structure Fluidic-Based Memristor for Immunosensing of NS1 Protein Application. LID - 10.3390/bios10100143 [doi] LID - 143 AB - Non-structural protein 1 (NS1 protein) is becoming a commonplace biomarker for the diagnostic of early detection of dengue. In this study, we sought to use a label-free approach of detecting NS1 protein by harnessing fluidic-based memristor sensor. The sensor was fabricated using sol-gel spin coating technique, by which TiO(2) thin film is coated on the surface of Indium tin oxide (ITO) and a glass substrate. The sensor was then functionalized with glycidoxypropyl-trimethoxysilane (GPTS), acting as antibody for NS1. The addition of the target NS1 formed an antibody-antigen complex which altered the physical and electrical properties in sensing region. Sensing of the sensor is incumbent upon the measurement of Off-On resistance ratio. Imaging with Field Emission Scanning Electron Microscope (FESEM) evinced the successful immobilization of the antibody and the subsequent capture of the NS1 protein by the immobilized antibody. The detection limit actualized by the developed sensor was 52 nM and the diameter of 2 mm gives the most optimal measurement. The developed sensor demonstrated an immense potential towards the development of label-free diagnostic of early dengue infection. FAU - Mohamad Hadis, Nor Shahanim AU - Mohamad Hadis NS AUID- ORCID: 0000-0001-5517-4276 AD - Collaborative Microelectronic Design Excellence Centre (CEDEC), Sains@USM, Universiti Sains Malaysia, Pulau Pinang 11900, Malaysia. AD - Faculty of Electrical Engineering, Universiti Teknologi MARA Cawangan Pulau Pinang, Kampus Permatang Pauh, Pulau Pinang 13500, Malaysia. FAU - Manaf, Asrulnizam Abd AU - Manaf AA AUID- ORCID: 0000-0002-6198-263X AD - Collaborative Microelectronic Design Excellence Centre (CEDEC), Sains@USM, Universiti Sains Malaysia, Pulau Pinang 11900, Malaysia. FAU - Rahman, Mohamad Faizal Abd AU - Rahman MFA AD - Collaborative Microelectronic Design Excellence Centre (CEDEC), Sains@USM, Universiti Sains Malaysia, Pulau Pinang 11900, Malaysia. AD - Faculty of Electrical Engineering, Universiti Teknologi MARA Cawangan Pulau Pinang, Kampus Permatang Pauh, Pulau Pinang 13500, Malaysia. FAU - Ngalim, Siti Hawa AU - Ngalim SH AUID- ORCID: 0000-0001-7893-926X AD - Regenerative Medicine Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Pulau Pinang 13200, Malaysia. FAU - Hock Tang, Thean AU - Hock Tang T AUID- ORCID: 0000-0001-7652-7923 AD - Infectomics Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Pulau Pinang 13200, Malaysia. FAU - Citartan, Marimuthu AU - Citartan M AD - Infectomics Cluster, Advanced Medical & Dental Institute (AMDI), Universiti Sains Malaysia, Pulau Pinang 13200, Malaysia. FAU - Ismail, Aziah AU - Ismail A AUID- ORCID: 0000-0001-7850-6405 AD - Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia. FAU - Herman, Sukreen Hana AU - Herman SH AUID- ORCID: 0000-0003-1588-557X AD - Nano-Electronics Centre (NET), Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia. LA - eng GR - 203/PCEDEC/6071289/Ministry of Higher Education Malaysia under Fundamental Research Grant Scheme/ GR - 1001/PCEDEC/870050/Top Down Research University (RU) Grant Universiti Sains Malaysia/ GR - 311/CIPPM/4401005/Higher Institution Center of Excellence (HiCoE)/ PT - Journal Article DEP - 20201016 PL - Switzerland TA - Biosensors (Basel) JT - Biosensors JID - 101609191 RN - 0 (Proteins) RN - 0 (Silanes) RN - 0 (Tin Compounds) RN - 71243-84-0 (indium tin oxide) RN - V1J39XPF91 (trimethoxysilane) SB - IM MH - Biosensing Techniques/*methods MH - Proteins MH - Silanes MH - Tin Compounds PMC - PMC7602703 OTO - NOTNLM OT - NS1 protein OT - current-voltage measurement OT - fluidic-based memristor sensor OT - off-on resistance ratio COIS- The authors declare no conflict of interest. EDAT- 2020/10/22 06:00 MHDA- 2021/04/16 06:00 PMCR- 2020/10/01 CRDT- 2020/10/21 01:02 PHST- 2020/09/02 00:00 [received] PHST- 2020/10/05 00:00 [revised] PHST- 2020/10/13 00:00 [accepted] PHST- 2020/10/21 01:02 [entrez] PHST- 2020/10/22 06:00 [pubmed] PHST- 2021/04/16 06:00 [medline] PHST- 2020/10/01 00:00 [pmc-release] AID - bios10100143 [pii] AID - biosensors-10-00143 [pii] AID - 10.3390/bios10100143 [doi] PST - epublish SO - Biosensors (Basel). 2020 Oct 16;10(10):143. doi: 10.3390/bios10100143.