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The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

Cancer Biomarker Detection in Serum Samples Using Surface Plasmon Resonance and Quartz Crystal Microbalance Sensors with Nanoparticle Signal Amplification

Uludag, Yildiz, Tothill, Ibtisam E.·2012·Analytical Chemistry

Abstract

Early detection of cancer is vital for the successful treatment of the disease. Hence, a rapid and sensitive diagnosis is essential before the cancer is spread out to the other body organs. Here we describe the development of a point-of-care immunosensor for the detection of the cancer biomarker (total prostate-specific antigen, tPSA) using surface plasmon resonance (SPR) and quartz crystal microbalance (QCM) sensor platforms in human serum samples. K(D) of the antibody used toward PSA was calculated as 9.46 × 10(-10) M, indicating high affinity of the antibody used in developing the assay. By performing a sandwich assay using antibody-modified nanoparticles concentrations of 2.3 ng mL(-1) (Au, 20 nm) and 0.29 ng mL(-1) (8.5 pM) (Au, 40 nm) tPSA in 75% human serum were detected using the developed assay on an SPR sensor chip. The SPR sensor results were found to be comparable to that achieved using a QCM sensor platform, indicating that both systems can be applied for disease biomarkers screening. The clinical applicability of the developed immunoassay can therefore be successfully applied to patient's serum samples. This demonstrates the high potential of the developed sensor devices as platforms for clinical prostate cancer diagnosis and prognosis.

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Metadata

Authors
Uludag, Y., & Tothill, I. E.
Venue
Analytical Chemistry
Published
2012-06-25
Volume
84
Issue
14
Pages
5898-5904
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W1998230670
Cited by
290
References
19
FWCI
9.99
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Cancer Biomarker Detection in Serum Samples Using Surface Plasmon Resonance and Quartz Crystal Microbalance Sensors with Nanoparticle Signal Amplification. https://app.cochat.ai/papers/10.1021/ac300278p
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Uludag, Y., & Tothill, I. E. (2012). Cancer Biomarker Detection in Serum Samples Using Surface Plasmon Resonance and Quartz Crystal Microbalance Sensors with Nanoparticle Signal Amplification. Analytical Chemistry. https://doi.org/10.1021/ac300278p

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.