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Uğurlu Ö, Man E, Gök O, Ülker G, Soytürk H, Özyurt C, Evran S. A review of aptamer-conjugated nanomaterials for analytical sample preparation: Classification according to the utilized nanomaterials. Anal Chim Acta 2024; 1287:342001. [PMID: 38182359 DOI: 10.1016/j.aca.2023.342001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Sample extraction before detection is a critical step in analysis. Since targets of interest are often found in complex matrices, the sample can not be directly introduced to the analytical instrument. Nanomaterials with unique physical-chemical properties are excellent supports for use in sorbent-based extraction. However, they lack selectivity and thus need to be functionalized with target-capturing molecules. Antibodies and molecularly imprinted polymers (MIPs) can be used for this purpose, but they have some problems that limit their practical applications. Hence, functionalization of nanomaterials for selectivity remains a problem. RESULTS Nucleic acid aptamers are affinity reagents that can provide superiority to antibodies since they can be selected in vitro and at a lower cost. Moreover, aptamers can be chemically synthesized and easily modified with different functional groups. Hence, aptamers are good candidates to impart selectivity to the nanomaterials. Recent studies focus on the integration of aptamers with magnetic nanoparticles, carbon-based nanomaterials, metal-organic frameworks, gold nanoparticles, gold nanorods, silica nanomaterials, and nanofibers. The unique properties of nanomaterials and aptamers make the aptamer-conjugated nanomaterials attractive for use in sample preparation. Aptamer-functionalized nanomaterials have been successfully used for selective extraction of proteins, small molecules, and cells from different types of complex samples such as serum, urine, and milk. In particular, magnetic nanoparticles have a wider use due to the rapid extraction of the sample under magnetic field. SIGNIFICANCE In this review, we aim to emphasize how beneficial features of nanomaterials and aptamers could be combined for extraction or enrichment of the analytes from complex samples. We aim to highlight that the benefits are twofold in terms of selectivity and efficiency when employing nanomaterials and aptamers together as a single platform.
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Affiliation(s)
- Özge Uğurlu
- Department of Medical Services and Techniques, Hatay Vocational School of Health Services, Hatay Mustafa Kemal University, Tayfur Sökmen Campus, 31060, Alahan-Antakya, Hatay, Turkey; Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Ezgi Man
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey; EGE SCIENCE PRO Scientific Research Inc., Ege University, IdeEGE Technology Development Zone, 35100, İzmir, Turkey
| | - Oğuz Gök
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Gözde Ülker
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Hakan Soytürk
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Canan Özyurt
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Serap Evran
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey.
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