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https://hdl.handle.net/11499/36894
Title: | A novel sandwich-type SERS immunosensor for selective and sensitive carcinoembryonic antigen (CEA) detection | Authors: | Medetalibeyoglu, H. Kotan, G. Atar, Necip Yola, M.L. |
Keywords: | Application Carcinoembryonic antigen Immunosensor MoS2 nanoflowers@Au nanoparticles SERS magnetic Substrate Antigens Diagnosis Fourier transform infrared spectroscopy Gold compounds Gold nanoparticles High resolution transmission electron microscopy Immunosensors Iron oxides Layered semiconductors Magnetite Molybdenum compounds Nanomagnetics Nanoparticles Plasma stability Raman scattering Raman spectroscopy Scanning electron microscopy Surface scattering Titanium compounds X ray photoelectron spectroscopy 4-mercaptobenzoic acids Analytical method Cancer biomarkers Clinical application Malignant tumors Sandwich-type immunosensors Surface enhanced Raman Scattering (SERS) Substrates antigen detection Article priority journal surface enhanced Raman spectroscopy |
Publisher: | Elsevier B.V. | Abstract: | Monitoring the malignant tumors via cancer biomarkers is very significant process. Nonetheless, the practical clinical applications need selective and sensitive analytical methods/techniques. In this study, a novel sandwich type immunosensor based on surface-enhanced raman scattering (SERS) was presented including 4-mercaptobenzoic acid labeled MoS2 nanoflowers@Au nanoparticles (MoS2 NFs@Au NPs/ MBA) as CEASERS tag and Fe3O4@Au nanoparticles functionalized delaminated Ti3C2Tx MXene (Fe3O4 NPs@Au NPs/d-Ti3C2TX MXene) as SERS magnetic supporting substrate for carcinoembryonic antigen (CEA) detection. Especially, the determination of single molecule by using SERS method enables early diagnosis of major diseases. In addition, this technique can be utilized for multiplex analyzes owing to narrow well-resolved peaks. The prepared CEASERS tag and SERS magnetic supporting substrate were characterized by scanning electron microscope (SEM), x-ray diffraction (XRD) method, x-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and fourier transform infrared spectroscopy (FTIR). A linearity of 0.0001–100.0 ng mL-1 was observed with high sensitivity. Finally, sandwich type immunosensor demonstrated good selectivity and stability for target CEA recognition in plasma sample. © 2020 Elsevier B.V. | URI: | https://hdl.handle.net/11499/36894 https://doi.org/10.1016/j.aca.2020.09.034 |
ISSN: | 0003-2670 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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