Research Article

Nanoscale detection of ovarian cancer biomarker

Volume: 42 Number: 6 December 9, 2024
  • Marwah Al-ogaidi *
  • Nuha Nihad A. Aburahma
  • Ansam M. Salman
  • Haider Raad

Nanoscale detection of ovarian cancer biomarker

Abstract

It is estimated that over 2,000 women globally are impacted by ovarian cancer (OC). Unfortunately, every year, over half of the cases end in death. This underscores the critical importance of better early detection and diagnosis of OC. Research into improving a sensitive, dependable, and rapid cancer serum antigen (CA-125) detector is essential for medical diagnosis. This antigen may signal the earliest stages of ovarian cancer. The typical crystalline size of the Cadmium selenide (CdSe) quantum dots (QDs) that we synthesized and coated is adjusted in this study to be 8 ± 0.2 nm. Multiple characterization methods, including X-ray diffraction, Z-scan, and transmission electron microscopy, were utilized to verify their properties. We used these QDs as optical tags for a sandwich assay, which was used to test a high-binding surface where the capture antibody was immobilized. Popular optical tags (QDs), semiconductor nanoparticles with size-dependent fluorescence spectra, brightness, and photostability, were used and can be detected by a microplate spectrophotometer. A linear curve was observed within a range of 5–1000 U/ml CA-125, which is suitable for quantitative work, and the detection limit was 4.5 U/ml. The interference with the detection of CA-125 was tested in human serum, and the results showed no significant difference in the fluorescence spectra. Third-order nonlinear optical parameter analysis of conjugated CdSe QDs under an excitation beam power level of approximately 120 W and a wavelength of 532 nm was determined in detail. The third-order optical susceptibility (χ3) was 2.746 × 10-7 esu with a sound absorption coefficient of 4.68556 × 10-5 cm/W and nonlinear refractive index -5.6132 × 10-9 cm2/W. Finally, the resulting CdSe QDs have been effectively employed in the labeling and, hence, detection of ovarian cancer antigen (CA-125).

Keywords

References

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Details

Primary Language

English

Subjects

Clinical Sciences (Other)

Journal Section

Research Article

Authors

Marwah Al-ogaidi * This is me
0000-0002-5991-1162
Iraq

Nuha Nihad A. Aburahma This is me
0000-0003-4606-1004
Iraq

Haider Raad This is me
0000-0002-1124-1753
United States

Publication Date

December 9, 2024

Submission Date

September 4, 2023

Acceptance Date

January 2, 2024

Published in Issue

Year 2024 Volume: 42 Number: 6

APA
Al-ogaidi, M., Nihad A. Aburahma, N., M. Salman, A., & Raad, H. (2024). Nanoscale detection of ovarian cancer biomarker. Sigma Journal of Engineering and Natural Sciences, 42(6), 1884-1891. https://izlik.org/JA36PU55LU
AMA
1.Al-ogaidi M, Nihad A. Aburahma N, M. Salman A, Raad H. Nanoscale detection of ovarian cancer biomarker. SIGMA. 2024;42(6):1884-1891. https://izlik.org/JA36PU55LU
Chicago
Al-ogaidi, Marwah, Nuha Nihad A. Aburahma, Ansam M. Salman, and Haider Raad. 2024. “Nanoscale Detection of Ovarian Cancer Biomarker”. Sigma Journal of Engineering and Natural Sciences 42 (6): 1884-91. https://izlik.org/JA36PU55LU.
EndNote
Al-ogaidi M, Nihad A. Aburahma N, M. Salman A, Raad H (December 1, 2024) Nanoscale detection of ovarian cancer biomarker. Sigma Journal of Engineering and Natural Sciences 42 6 1884–1891.
IEEE
[1]M. Al-ogaidi, N. Nihad A. Aburahma, A. M. Salman, and H. Raad, “Nanoscale detection of ovarian cancer biomarker”, SIGMA, vol. 42, no. 6, pp. 1884–1891, Dec. 2024, [Online]. Available: https://izlik.org/JA36PU55LU
ISNAD
Al-ogaidi, Marwah - Nihad A. Aburahma, Nuha - M. Salman, Ansam - Raad, Haider. “Nanoscale Detection of Ovarian Cancer Biomarker”. Sigma Journal of Engineering and Natural Sciences 42/6 (December 1, 2024): 1884-1891. https://izlik.org/JA36PU55LU.
JAMA
1.Al-ogaidi M, Nihad A. Aburahma N, M. Salman A, Raad H. Nanoscale detection of ovarian cancer biomarker. SIGMA. 2024;42:1884–1891.
MLA
Al-ogaidi, Marwah, et al. “Nanoscale Detection of Ovarian Cancer Biomarker”. Sigma Journal of Engineering and Natural Sciences, vol. 42, no. 6, Dec. 2024, pp. 1884-91, https://izlik.org/JA36PU55LU.
Vancouver
1.Marwah Al-ogaidi, Nuha Nihad A. Aburahma, Ansam M. Salman, Haider Raad. Nanoscale detection of ovarian cancer biomarker. SIGMA [Internet]. 2024 Dec. 1;42(6):1884-91. Available from: https://izlik.org/JA36PU55LU

IMPORTANT NOTE: JOURNAL SUBMISSION LINK https://eds.yildiz.edu.tr/sigma/