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Safi A, Landis JE, Adler HG, Khadem H, Eseller KE, Markushin Y, Honarparvaran S, De Giacomo A, Melikechi N. Enhancing biomarker detection sensitivity through tag-laser induced breakdown spectroscopy with NELIBS. Talanta 2024; 271:125723. [PMID: 38295442 DOI: 10.1016/j.talanta.2024.125723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/12/2024] [Accepted: 01/24/2024] [Indexed: 02/02/2024]
Abstract
Nanoparticle-enhanced laser-induced breakdown spectroscopy and Tag-LIBS are two approaches that have been shown to significantly enhance LIBS sensitivity and specificity. In an effort to combine both of these approaches, we have initiated a study on the effect of the presence of Silver nanoparticle concentrations on Europium (Eu) and Ytterbium (Yb) LIBS signals. These elements are part of metal-loaded polymers conjugated to antibodies. We observe a signal enhancement of the emission lines of about 10 and 12 times for the Europium and Ytterbium lines. This study shows that Europium and Ytterbium are enhanced differently; Europium shows enhancement for both neutral and ionized species while the Ytterbium shows enhancement only for ionized species. Additionally, we found that NPs at 0.1 mg/mL and 0.05 mg/mL achieved maximum enhancement for Eu and Yb, respectively. Based on our findings, the temperature and electron density of Eu and Yb are not significantly different for NPs concentrations, but the total signal intensity is significantly higher for optimum NP concentrations for both Eu and Yb.
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Affiliation(s)
- Ali Safi
- Department of Physics and Applied Physics, Kennedy College of Sciences, University of Massachusetts Lowell, MA, 01854, USA.
| | - Joshua E Landis
- Department of Physics and Applied Physics, Kennedy College of Sciences, University of Massachusetts Lowell, MA, 01854, USA
| | - Helmar G Adler
- Department of Physics and Applied Physics, Kennedy College of Sciences, University of Massachusetts Lowell, MA, 01854, USA
| | - Hossein Khadem
- Institute for Experimental Endocrinology and Oncology "Gaetano Salvatore" (IEOS), Second Unit, National Research Council, 80131, Napoli, Italy
| | - Kemal Efe Eseller
- Department of Physics and Applied Physics, Kennedy College of Sciences, University of Massachusetts Lowell, MA, 01854, USA
| | - Yuri Markushin
- Optical Science Center for Applied Research, Delaware State University, 1200 N. Dupont Highway Dover, DE, 19901, USA
| | - Sara Honarparvaran
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran
| | - Alessandro De Giacomo
- Department of Chemistry, University of Bari, Via Orabona 4, 70126, Bari, Italy; Department of Chemistry, Kennedy College of Sciences, University of Massachusetts Lowell, MA, 01854, USA
| | - Noureddine Melikechi
- Department of Physics and Applied Physics, Kennedy College of Sciences, University of Massachusetts Lowell, MA, 01854, USA
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Melikechi N, Adler HG, Safi A, Landis JE, Pourkamali-Anaraki F, Eseller KE, Berlo K, Bonito D, Chiklis GR, Xia W. Blood metal analysis of plasmas from donors with and without SARS-CoV-2 using laser-induced breakdown spectroscopy and logistic regression. Biomed Opt Express 2024; 15:446-459. [PMID: 38223176 PMCID: PMC10783903 DOI: 10.1364/boe.513558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 01/16/2024]
Abstract
Research on the correlation between metal levels in blood and Covid-19 infection has been conducted primarily by assessing how each individual blood metal is linked to different aspects of the disease using samples from donors with various levels of severity to Covid-19 infection. Using logistics regression on LIBS spectra of plasma samples collected pre- and post- Covid-19 pandemic from donors known to have developed various levels of antibodies to the SARS-Cov-2 virus, we show that relying on the levels of Na, K, and Mg together is more efficient at differentiating the two types of plasma samples than any single blood alone.
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Affiliation(s)
- Noureddine Melikechi
- Kennedy College of Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Helmar G. Adler
- Kennedy College of Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Ali Safi
- Kennedy College of Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Joshua E. Landis
- Kennedy College of Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Farhad Pourkamali-Anaraki
- Kennedy College of Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
- Present address: University of Colorado Denver, Denver, CO 80204, USA
| | - Kemal Efe Eseller
- Kennedy College of Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
- Department of Electrical - Electronics Engineering, Atilim University, 06836, Ankara, Turkey
| | - Kim Berlo
- Department of Earth & Planetary Sciences, McGill University, Montreal H3A 0E, Canada
| | - Danielle Bonito
- MRN Diagnostics, 101 Constitution Blvd, Franklin, MA 02038, USA
| | | | - Weiming Xia
- Kennedy College of Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
- Bedford VA Healthcare System, Bedford, MA 01730, USA
- Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118, USA
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