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Lin D, Gong T, Hong ZY, Qiu S, Pan J, Tseng CY, Feng S, Chen R, Kong KV. Metal Carbonyls for the Biointerference-Free Ratiometric Surface-Enhanced Raman Spectroscopy-Based Assay for Cell-Free Circulating DNA of Epstein-Barr Virus in Blood. Anal Chem 2018; 90:7139-7147. [PMID: 29808995 DOI: 10.1021/acs.analchem.8b01931] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
By taking advantage of the spectral properties of metal carbonyls, we have designed a surface-enhanced Raman spectroscopy (SERS) ratiometric assay for measuring cell-free circulating DNA (cfDNA) from Epstein-Barr virus in blood for nasopharyngeal carcinoma (NPC). This assay consists of a rhenium carbonyl (Re-CO) to serve as a DNA probe, an osmium carbonyl (Os-CO) embedded within the SERS-active substrate as an internal reference, and a streptavidin layer on the surface of the substrate. Hybridization of cfDNA with biotinylated-capture sequence leads to immobilization of cfDNA on the substrate. The binding of Re-CO via daunorubicin (DNR) to cfDNA is accompanied by an appearance of a strong symmetry stretching vibrations peak at 2113 cm-1, which has spectral overlap with Os-CO (2025 cm-1). This results in an increase in the I2113/ I2025 ratio and quantitatively correlates with cfDNA. This SERS assay can be readily used to detect cfDNA in blood samples from patients due to the intensity ratio of I2113/ I2025 lying in a silent region (1780-2200 cm-1) in the SERS spectrum of the biomolecules.
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Affiliation(s)
- Duo Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education , Fujian Normal University , Fuzhou , Fujian 350007 , China.,College of Integrated Traditional Chinese & Western Medicine , Fujian University of Traditional Chinese Medicine , Fuzhou , Fujian 350122 , China
| | - Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices , University of Electronic Science and Technology of China , Chengdu , Sichuan 610054 China
| | - Zi-Yao Hong
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Sufang Qiu
- Department of Radiation Oncology , Fujian Provincial Cancer Hospital and Fujian Medical University Cancer Hospital , Fuzhou , Fujian 350014 , China
| | - Jianji Pan
- Department of Radiation Oncology , Fujian Provincial Cancer Hospital and Fujian Medical University Cancer Hospital , Fuzhou , Fujian 350014 , China
| | - Chinh-Yu Tseng
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Shangyuan Feng
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education , Fujian Normal University , Fuzhou , Fujian 350007 , China
| | - Rong Chen
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education , Fujian Normal University , Fuzhou , Fujian 350007 , China
| | - Kien Voon Kong
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
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Gong T, Hong ZY, Chen CH, Tsai CY, Liao LD, Kong KV. Optical Interference-Free Surface-Enhanced Raman Scattering CO-Nanotags for Logical Multiplex Detection of Vascular Disease-Related Biomarkers. ACS NANO 2017; 11:3365-3375. [PMID: 28245103 DOI: 10.1021/acsnano.7b00733] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Matrix metalloproteinases (MMPs), specifically MMP-2, MMP-7, and MMP-9, have been discovered to be linked to many forms of vascular diseases such as stroke, and their detection is crucial to facilitate clinical diagnosis. In this work, we prepared a class of optical interference-free SERS nanotags (CO-nanotags) that can be used for the purpose of multiplex sensing of different MMPs. Multiplex detection with the absence of cross-talk was achieved by using CO-nanotags with individual tunable intrinsic Raman shifts of CO in the 1800-2200 cm-1 region determined by the metal core and ligands of the metal carbonyl complex. Boolean logic was used as well to simultaneously probe for two proteolytic inputs. Such nanotags offer the advantages of convenient detection of target nanotags and high sensitivity as validated in the ischemia rat model.
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Affiliation(s)
- Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu, 610054, P. R. China
| | - Zi-Yao Hong
- Department of Chemistry, National Taiwan University , Taipei, 10617, Taiwan
| | - Ching-Hsiang Chen
- Sustainable Energy Development Center, National Taiwan University of Science and Technology , Taipei, 10607, Taiwan
| | - Cheng-Yen Tsai
- Department of Chemistry, National Taiwan University , Taipei, 10617, Taiwan
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes , 35 Keyen Road, Zhunan, Miaoli Country, 35053, Taiwan
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University , Taipei, 10617, Taiwan
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Lam Z, Kong KV, Olivo M, Leong WK. Vibrational spectroscopy of metal carbonyls for bio-imaging and -sensing. Analyst 2016; 141:1569-86. [DOI: 10.1039/c5an02191j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Transition metal carbonyls exhibit strong CO absorptions in the 2200–1800 cm−1 region, which is free of interference from other functional groups. This feature has led to their applications in bio-imaging and -sensing, in particular through mid-IR, Raman and more recently, surface-enhanced Raman spectroscopy (SERS).
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Affiliation(s)
- Zhiyong Lam
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
- Bio-Optical Imaging Group
- Singapore Bioimaging Consortium
| | | | - Malini Olivo
- Bio-Optical Imaging Group
- Singapore Bioimaging Consortium
- Agency for Science
- Technology and Research (A*STAR)
- Singapore
| | - Weng Kee Leong
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
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Kong KV, Leong WK, Lam Z, Gong T, Goh D, Lau WKO, Olivo M. A rapid and label-free SERS detection method for biomarkers in clinical biofluids. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:5030-5034. [PMID: 25111592 DOI: 10.1002/smll.201401713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 07/16/2014] [Indexed: 06/03/2023]
Abstract
A metal carbonyl-functionalized nanostructured substrate can be used in a rapid and simple assay for the detection of A1AT, a potential biomarker for bladder cancer, in clinical urine samples. The assay involves monitoring changes in the carbonyl stretching vibrations of the metal carbonyl via surface-enhanced Raman spectroscopy (SERS). These vibrations lie in the absorption spectral window of 1800-2200 cm(-1), which is free of any spectral interference from biomolecules.
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Affiliation(s)
- Kien Voon Kong
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 138667, Singapore
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Kong KV, Lam Z, Lau WKO, Leong WK, Olivo M. A Transition Metal Carbonyl Probe for Use in a Highly Specific and Sensitive SERS-Based Assay for Glucose. J Am Chem Soc 2013; 135:18028-31. [DOI: 10.1021/ja409230g] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kien Voon Kong
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
| | - Zhiyong Lam
- Division of Chemistry & Biological Chemistry, Nanyang Technological University, Singapore
| | | | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry, Nanyang Technological University, Singapore
| | - Malini Olivo
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
- Department
of Pharmacy, National University of Singapore, Singapore
- School
of Physics, National University of Ireland, Galway, Ireland
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Kong KV, Dinish US, Lau WKO, Olivo M. Sensitive SERS-pH sensing in biological media using metal carbonyl functionalized planar substrates. Biosens Bioelectron 2013; 54:135-40. [PMID: 24269755 DOI: 10.1016/j.bios.2013.10.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 10/25/2013] [Accepted: 10/25/2013] [Indexed: 10/26/2022]
Abstract
Conventional nanoparticle based Surface enhanced Raman scattering (SERS) technique for pH sensing often fails due to the aggregation of particles when detecting in acidic medium or biosamples having high ionic strength. Here, We develop SERS based pH sensing using a novel Raman reporter, arene chromium tricarbonyl linked aminothiophenol (Cr(CO)3-ATP), functionalized onto a nano-roughened planar substrates coated with gold. Unlike the SERS spectrum of the ATP molecule that dominates in the 400-1700 cm(-1) region, which is highly interfered by bio-molecules signals, metal carbonyl-ATP (Cr(CO)3)-ATP) offers the advantage of monitoring the pH dependent strong CO stretching vibrations in the mid-IR (1800-2200 cm(-1)) range. Raman signal of the CO stretching vibrations at ~1820 cm(-1) has strong dependency on the pH value of the environment, where its peak undergo noticeable shift as the pH of the medium is varied from 3.0 to 9.0. The sensor showed better sensitivity in the acidic range of the pH. We also demonstrate the pH sensing in a urine sample, which has high ionic strength and our data closely correlate to the value obtained from conventional sensor. In future, this study may lead to a sensitive chip based pH sensing platform in bio-fluids for the early diagnosis of diseases.
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Affiliation(s)
- Kien Voon Kong
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A(⁎)STAR), 11 Biopolis Way, Singapore 138667, Singapore
| | - U S Dinish
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A(⁎)STAR), 11 Biopolis Way, Singapore 138667, Singapore
| | - Weber Kam On Lau
- Department of Urology, Singapore General Hospital, Singapore, Singapore
| | - Malini Olivo
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A(⁎)STAR), 11 Biopolis Way, Singapore 138667, Singapore; Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore; School of Physics, National University of Ireland Galway, Galway, Ireland.
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Vessières A. Metal carbonyl tracers and the ferrocifen family: Two facets of bioorganometallic chemistry. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.12.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Affiliation(s)
- Gilles Gasser
- Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Ingo Ott
- Institute of Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
| | - Nils Metzler-Nolte
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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Kneipp J, Miller LM, Joncic M, Kittel M, Lasch P, Beekes M, Naumann D. In situ identification of protein structural changes in prion-infected tissue. Biochim Biophys Acta Mol Basis Dis 2003; 1639:152-8. [PMID: 14636946 DOI: 10.1016/j.bbadis.2003.08.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Transmissible spongiform encephalopathies (TSE) are fatal neurodegenerative disorders characterized by the conversion of the normal prion protein (PrP(C)) into aggregates of its pathological conformer (PrP(Sc)). The mechanism behind this structural conversion is unclear. We report the identification of disease-related protein structural differences directly within the tissue environment. Utilizing a synchrotron infrared (IR) light source, IR images of protein structure were obtained at a subcellular resolution, revealing regions of decreased alpha-helical content and elevated beta-sheet structure in and around infected neurons in the 263 K scrapie hamster model. PrP(Sc) immunostaining of the same tissue demonstrated that the elevated beta-sheet regions correspond to regions where the misfolded structure of PrP(Sc) is located. No evidence of these structural changes was observed in normal neurons.
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Affiliation(s)
- Janina Kneipp
- Robert-Koch-Institut, Nordufer 20, 13353 Berlin, Germany.
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Anson CE, Creaser CS, Malkov AV, Mojovic L, Stephenson G. Flavonoid derivatives as organometallic bioprobes. J Organomet Chem 2003. [DOI: 10.1016/s0022-328x(02)02146-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Anson CE, Creaser CS, Downie JA, Egyed O, Malkov AV, Mojovic L, Stephenson GR, Turner AT, Wilson KE. Organometallic flavonoid derivatives as spectroscopic probes. Bioorg Med Chem Lett 1998; 8:3549-54. [PMID: 9934469 DOI: 10.1016/s0960-894x(98)00638-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Derivatives of naringenin have been synthesized with organometalcarbonyl reporting groups for IR spectroscopy attached at C-2, C-3', or C-6, and the products have been tested for the induction of nod gene expression using a Rhizobium leguminosarum strain which contains the Escherichia coli lacZ (beta-galactosidase) gene fused to nodABC. Derivatives with an OMe substituent within the reporting group moiety showed residual gene induction activity.
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Affiliation(s)
- C E Anson
- School of Chemical Sciences, University of East Anglia, Norwich, UK
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MARCO M, GEE S, HAMMOCK B. Immunochemical techniques for environmental analysis II. Antibody production and immunoassay development. Trends Analyt Chem 1995. [DOI: 10.1016/0165-9936(95)90920-i] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Philomin V, Vessières A, Jaouen G. New applications of carbonylmetalloimmunoassay (CMIA): a non-radioisotopic approach to cortisol assay. J Immunol Methods 1994; 171:201-10. [PMID: 8195589 DOI: 10.1016/0022-1759(94)90040-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A non-isotopic heterogeneous competitive immunoassay procedure, carbonylmetalloimmunoassay (CMIA) has been applied to the assay of cortisol. The organometallic tracers employed were two stereoisomers (Z and E) of certain cobalt carbonyl complexes of cortisol which have strong, characteristic v(CO) absorptions in the infrared, detectable by Fourier transform infrared (FT-IR) spectroscopy at the femtomole level. The separation of the free and bound organometallic-labelled fractions was achieved by solvent extraction with isopropyl ether. Complete characterization (i.e., dilution, competition and standard curves) of two different polyclonal anticortisol antibodies was possible using the CMIA method. Identical titre values were obtained for the two different stereoisomers used as tracers. In terms of the standard curves, however, the isomers behaved differently depending on which batch of antibody was used. When the best antibody/tracer pair (30 pmol of E isomer; anticortisol 1 antibody) was employed, we obtained a B/B(o)value at 50% of 42 +/- 2.12 pmol and a coefficient of variation of 5%. Finally, preliminary results of a CMIA analysis of plasma cortisol from a patient indicated that reliable and reproducible assays are possible for amounts as small as 50 microliters of serum.
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Affiliation(s)
- V Philomin
- Ecole Nationale Supérieure de Chimie de Paris, U.R.A.C.N.R.S. 403, France
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