Reusable, Noninvasive, and Sensitive Fluorescence Enhanced ZnO-Nanorod-Based Microarrays for Quantitative Detection of AFP in Human Serum

The fabrication of sensitive protein microarrays such as PCR used in DNA microarray is challenging due to lack of signal amplification. The development of microarrays is utilized to improve the sensitivity and limitations of detection towards primal cancer detection. The sensitivity is enhanced by t...

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Veröffentlicht in:BioMed research international 2021, Vol.2021, p.1-11, Article 9916909
Hauptverfasser: Rafique, Saima, Kiyani, Farukh, Jawaid, Sumbal, Nasir, Rubina, Ahmad, Mahmoosh, Bashir, Shazia, Idress, Muhammad, Khan, Jan Sher, Akram, Rizwan
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container_title BioMed research international
container_volume 2021
creator Rafique, Saima
Kiyani, Farukh
Jawaid, Sumbal
Nasir, Rubina
Ahmad, Mahmoosh
Bashir, Shazia
Idress, Muhammad
Khan, Jan Sher
Akram, Rizwan
description The fabrication of sensitive protein microarrays such as PCR used in DNA microarray is challenging due to lack of signal amplification. The development of microarrays is utilized to improve the sensitivity and limitations of detection towards primal cancer detection. The sensitivity is enhanced by the use of ZnO-nanorods and is investigated as a substrate which enhance the florescent signal to diagnose the hepatocellular carcinoma (HCC) at early stages. The substrate for deposition of ZnO-nanorods is prepared by the conventional chemical bath deposition method. The resultant highly dense ZnO-nanorods enhance the fluorescent signal 7.2 times as compared to the substrate without ZnO-nanorods. The microarray showed sensitivity of 1504.7 ng ml-1 and limit of detection of 0.1 pg ml-1 in wide dynamic range of 0.05 pg-10 μg ml-1 for alpha fetoprotein (AFP) detection in 10% human serum. This immunoassay was successfully applied for human serum samples to detect tumor marker with good recoveries. The ZnO-nanorod substrate is a simple protein microarray which showed a great promise for developing a low-cost, sensitive, and high-throughput protein assay platform for several applications in both fundamental research and clinical diagnosis.
doi_str_mv 10.1155/2021/9916909
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subjects Antibodies
Antigens
Arrays
Biotechnology & Applied Microbiology
Calibration
Cancer
Cancer therapies
Deposition
DNA chips
DNA microarrays
Fabrication
Fluorescence
Glycerol
Hepatocellular carcinoma
Immunoassay
Life Sciences & Biomedicine
LITAF protein
Liver cancer
Medicine, Research & Experimental
Nanoparticles
Nanorods
Protein arrays
Proteins
Research & Experimental Medicine
Science & Technology
Sensitivity enhancement
Silicon nitride
Substrates
Tumor markers
Zinc oxide
title Reusable, Noninvasive, and Sensitive Fluorescence Enhanced ZnO-Nanorod-Based Microarrays for Quantitative Detection of AFP in Human Serum
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