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Soliman C, Faircloth J, Tu D, Mabbott S, Maitland K, Coté G. Exploring the Clinical Utility of Raman Spectroscopy for Point-of-Care Cardiovascular Disease Biomarker Detection. APPLIED SPECTROSCOPY 2023; 77:1181-1193. [PMID: 37487187 DOI: 10.1177/00037028231187963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
A variety of innovative point-of-care (POC) solutions using Raman systems have been explored. However, the vast effort is in assay development, while studies of the characteristics required for Raman spectrometers to function in POC applications are lacking. In this study, we tested and compared the performance of eight commercial Raman spectrometers ranging in size from benchtop Raman microscopes to portable and handheld Raman spectrometers using paper fluidic cartridges, including their ability to detect cardiac troponin I and heart fatty acid binding protein, both of which are well-established biomarkers for evaluating cardiovascular health. Each spectrometer was evaluated in terms of excitation wavelength, laser characteristics, and ease of use to investigate POC utility. We found that the Raman spectrometers equipped with 780 and 785 nm laser sources exhibited a reduced background signal and provided higher sensitivity compared to those with 633 and 638 nm laser sources. Furthermore, the spectrometer equipped with the single acquisition line readout functionality showed improved performance when compared to the point scan spectrometers and allowed measurements to be made faster and easier. The portable and handheld spectrometers also showed similar detection sensitivity to the gold standard instrument. Lastly, we reduced the laser power for the spectrometer with single acquisition line readout capability to explore the system performance at a laser power that change the classification from a Class 3B laser device to a Class 3R device and found that it showed comparable performance. Overall, these findings show that portable Raman spectrometers have the potential to be used in POC settings with accuracy comparable to laboratory-grade instruments, are relatively low-cost, provide fast signal readout, are easy to use, and can facilitate access for underserved communities.
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Affiliation(s)
- Cyril Soliman
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | | | - Dandan Tu
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | - Samuel Mabbott
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
- Texas A&M Engineering Experiment Station, Center for Remote Health Technologies and Systems, College Station, Texas, USA
| | - Kristen Maitland
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
- Texas A&M Engineering Experiment Station, Center for Remote Health Technologies and Systems, College Station, Texas, USA
- Imaging Program, Chan Zuckerberg Initiative, Redwood City, California, USA
| | - Gerard Coté
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
- Texas A&M Engineering Experiment Station, Center for Remote Health Technologies and Systems, College Station, Texas, USA
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2
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Soliman C, Tu D, Mabbott S, Coté G, Maitland K. Portable, multi-modal Raman and fluorescence spectroscopic platform for point-of-care applications. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:095006. [PMID: 36163635 PMCID: PMC9510839 DOI: 10.1117/1.jbo.27.9.095006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
SIGNIFICANCE Point-of-care (POC) platforms utilizing optical biosensing strategies can achieve on-site detection of biomarkers to improve the quality of care for patients in low-resource settings. AIM We aimed to develop a portable, multi-modal spectroscopic platform capable of performing Raman and fluorescence measurements from a single sample site. APPROACH We designed the spectroscopic platform in OpticStudio using commercial optical components and built the system on a portable optical breadboard. Two excitation and collection arms were utilized to detect the two optical signals. The multi-modal functionality was validated using ratiometric Raman/fluorescence samples, and the potential utility was demonstrated using a model bioassay for cardiac troponin I. RESULTS The designed spectroscopic platform achieved a spectral resolution of 0.67 ± 0.2 nm across the Raman detection range (660 to 770 nm). The ratiometric Raman/fluorescence samples demonstrated no crosstalk between the two detector arms across a gradient of high molar concentrations. Testing of the model bioassay response showed that the integrated approach improved the linearity of the calibration curve from (R2 = 0.977) for the Raman only and (R2 = 0.972) for the fluorescence only to (R2 = 0.988) for the multi-modal approach. CONCLUSION These findings demonstrate the potential impact of a multi-modal POC spectroscopic platform to improve the sensitivity and robustness necessary for biomarker detection.
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Affiliation(s)
- Cyril Soliman
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
| | - Dandan Tu
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
| | - Samuel Mabbott
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
- Texas A&M Engineering Experiment Station, Center for Remote Health Technologies and Systems, College Station, Texas, United States
| | - Gerard Coté
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
- Texas A&M Engineering Experiment Station, Center for Remote Health Technologies and Systems, College Station, Texas, United States
| | - Kristen Maitland
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
- Texas A&M Engineering Experiment Station, Center for Remote Health Technologies and Systems, College Station, Texas, United States
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3
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Whitaker DA, Munshi T, Scowen IJ, Edwards HGM. Development of a Surface-Enhanced Raman Spectroscopic Methodology to Detect Immobilized Organic Materials in Biogeological Contexts. ASTROBIOLOGY 2021; 21:1089-1098. [PMID: 34129380 DOI: 10.1089/ast.2020.2278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The likelihood of finding intact cellular structures on the surface or in the near subsurface of the martian regolith is slim, due in part to the intense bombardment of the surface by ionizing radiation from outer space. Given that this radiation is predicted to be so intense that it would render a living cell inactive within minutes, it is logical to search for evidence of microbial life by looking for molecules produced by the breakdown of cellular matter. This "pool" of molecules, known as biomarkers, consists of a range of species with various functionalities that make them likely to interact with minerals in the martian regolith. Raman spectroscopy, a molecularly specific analysis method utilized for detecting organic biomarkers among inorganic geomaterials, suffers from low signal intensity when the concentration of organics is as low as it appears to be on the martian surface. This article describes the utility of a surface-enhanced Raman spectroscopy (SERS) method used to detect extremely low levels of biomarkers that were passively adhered to mineral surfaces in a method that represents how this interaction would take place in a natural environment on Mars. The methodology showed promise for the detection of multiple classes of biomarkers.
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Affiliation(s)
- Darren A Whitaker
- Department of Chemical and Forensic Sciences, University of Bradford, Bradford, UK
| | - Tasnim Munshi
- School of Chemistry, Joseph Banks Laboratories, University of Lincoln, Lincoln, UK
| | - Ian J Scowen
- School of Chemistry, Joseph Banks Laboratories, University of Lincoln, Lincoln, UK
| | - Howell G M Edwards
- Department of Chemical and Forensic Sciences, University of Bradford, Bradford, UK
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4
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Mencaglia AA, Osticioli I, Ciofini D, Gallo L, Siano S. Raman spectrometer for the automated scan of large painted surfaces. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:053101. [PMID: 31153252 DOI: 10.1063/1.5088039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
In this work, a novel Raman scanner capable of performing point-to-point mapping of relatively large surface of paintings is presented. This device employs an excitation wavelength of 1064 nm, and it is equipped with a high efficiency probe in order to collect the back-scattered light from each point of analysis. The use of long depth-of-field optics as well as an autofocus system allowed maintaining the best conditions for the Raman signal acquisition during the scanning, regardless of the surface irregularities. The small dimension of the optical components and the reasonable size of mechanical parts made this instrumentation particularly suitable for on-site measurements. Finally, the Raman scanner was also equipped with an online temperature control using a thermal sensor, which allows modulating automatically the output power of the laser source in order to prevent overheating and alteration effects during the scanning process. The capabilities of the Raman scanner were evaluated scanning two valuable paintings one attributed to Ambrogio Lorenzetti and the other to Duccio da Buoninsegna of the fourteenth century.
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Affiliation(s)
| | - Iacopo Osticioli
- Institute of Applied Physics "Nello Carrara" (IFAC-CNR), Florence, Italy
| | - Daniele Ciofini
- Institute of Applied Physics "Nello Carrara" (IFAC-CNR), Florence, Italy
| | | | - Salvatore Siano
- Institute of Applied Physics "Nello Carrara" (IFAC-CNR), Florence, Italy
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5
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Raman mapping and time-resolved photoluminescence imaging for the analysis of a cross-section from a modern gypsum sculpture. Microchem J 2018. [DOI: 10.1016/j.microc.2017.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lauwers D, Brondeel P, Moens L, Vandenabeele P. In situ Raman mapping of art objects. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2016; 374:rsta.2016.0039. [PMID: 27799424 PMCID: PMC5095520 DOI: 10.1098/rsta.2016.0039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/08/2016] [Indexed: 06/06/2023]
Abstract
Raman spectroscopy has grown to be one of the techniques of interest for the investigation of art objects. The approach has several advantageous properties, and the non-destructive character of the technique allowed it to be used for in situ investigations. However, compared with laboratory approaches, it would be useful to take advantage of the small spectral footprint of the technique, and use Raman spectroscopy to study the spatial distribution of different compounds. In this work, an in situ Raman mapping system is developed to be able to relate chemical information with its spatial distribution. Challenges for the development are discussed, including the need for stable positioning and proper data treatment. To avoid focusing problems, nineteenth century porcelain cards are used to test the system. This work focuses mainly on the post-processing of the large dataset which consists of four steps: (i) importing the data into the software; (ii) visualization of the dataset; (iii) extraction of the variables; and (iv) creation of a Raman image. It is shown that despite the challenging task of the development of the full in situ Raman mapping system, the first steps are very promising.This article is part of the themed issue 'Raman spectroscopy in art and archaeology'.
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Affiliation(s)
- D Lauwers
- Department of Analytical Chemistry, Raman Spectroscopy Research Group, Ghent University, Krijgslaan 281, S12, 9000 Ghent, Belgium
| | - Ph Brondeel
- Department of Analytical Chemistry, Raman Spectroscopy Research Group, Ghent University, Krijgslaan 281, S12, 9000 Ghent, Belgium
| | - L Moens
- Department of Analytical Chemistry, Raman Spectroscopy Research Group, Ghent University, Krijgslaan 281, S12, 9000 Ghent, Belgium
| | - P Vandenabeele
- Department of Archaeology, Archaeometry Research Group, Ghent University, Sint-Pietersnieuwstraat 35, 9000 Ghent, Belgium
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7
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Raman Spectroscopy of cultural heritage Materials: Overview of Applications and New Frontiers in Instrumentation, Sampling Modalities, and Data Processing. Top Curr Chem (Cham) 2016; 374:62. [DOI: 10.1007/s41061-016-0061-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 07/30/2016] [Indexed: 12/31/2022]
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Mosca S, Frizzi T, Pontone M, Alberti R, Bombelli L, Capogrosso V, Nevin A, Valentini G, Comelli D. Identification of pigments in different layers of illuminated manuscripts by X-ray fluorescence mapping and Raman spectroscopy. Microchem J 2016. [DOI: 10.1016/j.microc.2015.10.038] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Dallongeville S, Garnier N, Rolando C, Tokarski C. Proteins in Art, Archaeology, and Paleontology: From Detection to Identification. Chem Rev 2015; 116:2-79. [PMID: 26709533 DOI: 10.1021/acs.chemrev.5b00037] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sophie Dallongeville
- Miniaturisation pour la Synthèse, l'Analyse & la Protéomique (MSAP), USR CNRS 3290, Université de Lille 1 Sciences et Technologies , 59655 Villeneuve d'Ascq Cedex, France
| | - Nicolas Garnier
- SARL Laboratoire Nicolas Garnier , 63270 Vic le Comte, France
| | - Christian Rolando
- Miniaturisation pour la Synthèse, l'Analyse & la Protéomique (MSAP), USR CNRS 3290, Université de Lille 1 Sciences et Technologies , 59655 Villeneuve d'Ascq Cedex, France
| | - Caroline Tokarski
- Miniaturisation pour la Synthèse, l'Analyse & la Protéomique (MSAP), USR CNRS 3290, Université de Lille 1 Sciences et Technologies , 59655 Villeneuve d'Ascq Cedex, France
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10
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Bellei S, Nevin A, Cesaratto A, Capogrosso V, Vezin H, Tokarski C, Valentini G, Comelli D. Multianalytical Study of Historical Luminescent Lithopone for the Detection of Impurities and Trace Metal Ions. Anal Chem 2015; 87:6049-56. [PMID: 26020448 DOI: 10.1021/acs.analchem.5b00560] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sara Bellei
- Istituto di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche (CNR-IFN), Piazza Leonardo
da Vinci 32, Milano, 20133 Italy
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, 20133 Italy
| | - Austin Nevin
- Istituto di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche (CNR-IFN), Piazza Leonardo
da Vinci 32, Milano, 20133 Italy
| | - Anna Cesaratto
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, 20133 Italy
| | - Valentina Capogrosso
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, 20133 Italy
| | - Hervé Vezin
- Laboratoire
de Spectrochimie Infrarouge et Raman (LASIR), UMR CNRS 8516, Université de Lille 1 Sciences et Technologies, 59655 Villeneuve
d’Ascq Cedex, France
| | - Caroline Tokarski
- Miniaturisation pour la Synthèse, l’Analyse & la Protéomique (MSAP), USR CNRS 3290, Université de Lille 1 Sciences et Technologies, 59655 Villeneuve d’Ascq Cedex, France
| | - Gianluca Valentini
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, 20133 Italy
| | - Daniela Comelli
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, 20133 Italy
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11
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Femtosecond pump-probe microscopy generates virtual cross-sections in historic artwork. Proc Natl Acad Sci U S A 2014; 111:1708-13. [PMID: 24449855 DOI: 10.1073/pnas.1317230111] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The layering structure of a painting contains a wealth of information about the artist's choice of materials and working methods, but currently, no 3D noninvasive method exists to replace the taking of small paint samples in the study of the stratigraphy. Here, we adapt femtosecond pump-probe imaging, previously shown in tissue, to the case of the color palette in paintings, where chromophores have much greater variety. We show that combining the contrasts of multispectral and multidelay pump-probe spectroscopy permits nondestructive 3D imaging of paintings with molecular and structural contrast, even for pigments with linear absorption spectra that are broad and relatively featureless. We show virtual cross-sectioning capabilities in mockup paintings, with pigment separation and nondestructive imaging on an intact 14th century painting (The crucifixion by Puccio Capanna). Our approach makes it possible to extract microscopic information for a broad range of applications to cultural heritage.
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12
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Vandenabeele P, Edwards HGM, Jehlička J. The role of mobile instrumentation in novel applications of Raman spectroscopy: archaeometry, geosciences, and forensics. Chem Soc Rev 2014; 43:2628-49. [PMID: 24382454 DOI: 10.1039/c3cs60263j] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The applications of analytical Raman spectroscopy in the characterisation of materials associated with archaeologically excavated artefacts, forensic investigations of drugs of abuse, security and crime scenes, minerals and rocks and future astrobiological space missions are now well established; however, these applications have emphasised the need for new developments in the area of miniaturised instrumentation which extends the concept and breadth of the analytical requirement to facilitate the provision of data from 'in field' studies. In this respect, the apparently unrelated themes of art and archaeology, forensic science, geological science and astrobiology as covered by this review are unified broadly by the ability to record data nondestructively and without resorting to sampling and the subsequent transfer of samples to the analytical laboratory. In studies of works of art there has long been a requirement for on-site analysis, especially for valuable paintings held under strict museum security and for wall paintings which cannot physically be removed from their setting; similarly, the use of portable Raman spectroscopy in archaeological and geological field work as a first-pass screening device which obviates the necessity of multiple and wasteful specimen collection is high on the wish-list of practicing spectroscopists. As a first-pass screening probe for forensic crime scenes, Raman spectroscopy has proved to be of inestimable value for the early detection of dangerous and prohibited materials such as drugs of abuse, explosives and their chemical precursors, and banned contraband biomaterials such as ivories and animal products; in these applications the advantage of the Raman spectroscopic technique for the recognition of spectral signatures from mixtures of inorganic and organic compounds is paramount and not afforded by other less portable instrumental techniques. Finally, in astrobiological work, these requirements also apply but with the additional prerequisite for system operation remotely - often over distances of several hundred million kilometres - as part of instrumental suites on robotic spacecraft and planetary landers; this necessitates robust and reliable instrumentation for the observation of unique and characteristic spectral features from the planetary geological surface and subsurface which are dependent on the assignment of both biological and geological band signatures.
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Affiliation(s)
- P Vandenabeele
- Department of Archaeology, Ghent University, Sint-Pietersnieuwstraat 35, B-9000 Ghent, Belgium.
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13
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Cesaratto A, Nevin A, Valentini G, Brambilla L, Castiglioni C, Toniolo L, Fratelli M, Comelli D. A novel classification method for multispectral imaging combined with portable Raman spectroscopy for the analysis of a painting by Vincent Van Gogh. APPLIED SPECTROSCOPY 2013; 67:1234-1241. [PMID: 24160874 DOI: 10.1366/13-07032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this work, a novel combination of portable micro-Raman spectroscopy and semi-automatic methods of data treatment are proposed for the classification and mapping of visible multispectral imaging data for the analysis of a painting on paper by Vincent Van Gogh. Analysis of multispectral imaging data with the sequential maximum-angle convex cone (SMACC) and spectral angle mapper (SAM) algorithms differentiated the surface into areas on the basis of the presence of pigment mixtures. Complementary analytical information was obtained through portable Raman spectroscopy was performed on a few selected points of the painting, allowing for the determination of Van Gogh's palette and the mapping of pigment mixtures on the painting's surface; the number of mixtures employed is varied and at least two different blues are present. The results obtained were integrated with the information from prior ultraviolet (UV)-induced luminescence analysis performed on the same painting to better understand the materials used by the artist. The mathematical treatment of multispectral data using the proposed methods could be extended to the analysis of other painted surfaces.
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Affiliation(s)
- Anna Cesaratto
- Politecnico di Milano, Dipartimento di Fisica, Piazza Leonardo da Vinci 32, Milano 20133 Italy
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A small animal Raman instrument for rapid, wide-area, spectroscopic imaging. Proc Natl Acad Sci U S A 2013; 110:12408-13. [PMID: 23821752 DOI: 10.1073/pnas.1301379110] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Raman spectroscopy, amplified by surface enhanced Raman scattering (SERS) nanoparticles, is a molecular imaging modality with ultra-high sensitivity and the unique ability to multiplex readouts from different molecular targets using a single wavelength of excitation. This approach holds exciting prospects for a range of applications in medicine, including identification and characterization of malignancy during endoscopy and intraoperative image guidance of surgical resection. The development of Raman molecular imaging with SERS nanoparticles is presently limited by long acquisition times, poor spatial resolution, small field of view, and difficulty in animal handling with existing Raman spectroscopy instruments. Our goal is to overcome these limitations by designing a bespoke instrument for Raman molecular imaging in small animals. Here, we present a unique and dedicated small-animal Raman imaging instrument that enables rapid, high-spatial resolution, spectroscopic imaging over a wide field of view (> 6 cm(2)), with simplified animal handling. Imaging of SERS nanoparticles in small animals demonstrated that this small animal Raman imaging system can detect multiplexed SERS signals in both superficial and deep tissue locations at least an order of magnitude faster than existing systems without compromising sensitivity.
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Brambilla A, Philippidis A, Nevin A, Comelli D, Valentini G, Anglos D. Adapting and testing a portable Raman spectrometer for SERS analysis of amino acids and small peptides. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.12.060] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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