1
|
Zhang S, Qi Y, Tan SPH, Bi R, Olivo M. Molecular Fingerprint Detection Using Raman and Infrared Spectroscopy Technologies for Cancer Detection: A Progress Review. BIOSENSORS 2023; 13:bios13050557. [PMID: 37232918 DOI: 10.3390/bios13050557] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023]
Abstract
Molecular vibrations play a crucial role in physical chemistry and biochemistry, and Raman and infrared spectroscopy are the two most used techniques for vibrational spectroscopy. These techniques provide unique fingerprints of the molecules in a sample, which can be used to identify the chemical bonds, functional groups, and structures of the molecules. In this review article, recent research and development activities for molecular fingerprint detection using Raman and infrared spectroscopy are discussed, with a focus on identifying specific biomolecules and studying the chemical composition of biological samples for cancer diagnosis applications. The working principle and instrumentation of each technique are also discussed for a better understanding of the analytical versatility of vibrational spectroscopy. Raman spectroscopy is an invaluable tool for studying molecules and their interactions, and its use is likely to continue to grow in the future. Research has demonstrated that Raman spectroscopy is capable of accurately diagnosing various types of cancer, making it a valuable alternative to traditional diagnostic methods such as endoscopy. Infrared spectroscopy can provide complementary information to Raman spectroscopy and detect a wide range of biomolecules at low concentrations, even in complex biological samples. The article concludes with a comparison of the techniques and insights into future directions.
Collapse
Affiliation(s)
- Shuyan Zhang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
| | - Yi Qi
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
| | - Sonia Peng Hwee Tan
- Department of Biomedical Engineering, National University of Singapore (NUS), 4 Engineering Drive 3 Block 4, #04-08, Singapore 117583, Singapore
| | - Renzhe Bi
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
| | - Malini Olivo
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #07-01, Singapore 138634, Singapore
| |
Collapse
|
2
|
Zniber M, Vahdatiyekta P, Huynh TP. Analysis of urine using electronic tongue towards non-invasive cancer diagnosis. Biosens Bioelectron 2023; 219:114810. [PMID: 36272349 DOI: 10.1016/j.bios.2022.114810] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 04/27/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
Electronic tongues (e-tongues) have been broadly employed in monitoring the quality of food, beverage, cosmetics, and pharmaceutical products, and in diagnosis of diseases, as the e-tongues can discriminate samples of high complexity, reduce interference of the matrix, offer rapid response. Compared to other analytical approaches using expensive and complex instrumentation as well as required sample preparation, the e-tongue is non-destructive, miniaturizable and on-site method with little or no preparation of samples. Even though e-tongues are successfully commercialized, their application in cancer diagnosis from urine samples is underestimated. In this review, we would like to highlight the various analytical techniques such as Raman spectroscopy, infrared spectroscopy, fluorescence spectroscopy, and electrochemical methods (potentiometry and voltammetry) used as e-tongues for urine analysis towards non-invasive cancer diagnosis. Besides, different machine learning approaches, for instance, supervised and unsupervised learning algorithms are introduced to analyze extracted chemical data. Finally, capabilities of e-tongues in distinguishing between patients diagnosed with cancer and healthy controls are highlighted.
Collapse
Affiliation(s)
- Mohammed Zniber
- Laboratory of Molecular Science and Engineering, Åbo Akademi University, 20500, Turku, Finland
| | - Parastoo Vahdatiyekta
- Laboratory of Molecular Science and Engineering, Åbo Akademi University, 20500, Turku, Finland
| | - Tan-Phat Huynh
- Laboratory of Molecular Science and Engineering, Åbo Akademi University, 20500, Turku, Finland.
| |
Collapse
|
3
|
Rehman HU, Tafintseva V, Zimmermann B, Solheim JH, Virtanen V, Shaikh R, Nippolainen E, Afara I, Saarakkala S, Rieppo L, Krebs P, Fomina P, Mizaikoff B, Kohler A. Preclassification of Broadband and Sparse Infrared Data by Multiplicative Signal Correction Approach. Molecules 2022; 27:2298. [PMID: 35408697 PMCID: PMC9000438 DOI: 10.3390/molecules27072298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 02/04/2023] Open
Abstract
Preclassification of raw infrared spectra has often been neglected in scientific literature. Separating spectra of low spectral quality, due to low signal-to-noise ratio, presence of artifacts, and low analyte presence, is crucial for accurate model development. Furthermore, it is very important for sparse data, where it becomes challenging to visually inspect spectra of different natures. Hence, a preclassification approach to separate infrared spectra for sparse data is needed. In this study, we propose a preclassification approach based on Multiplicative Signal Correction (MSC). The MSC approach was applied on human and the bovine knee cartilage broadband Fourier Transform Infrared (FTIR) spectra and on a sparse data subset comprising of only seven wavelengths. The goal of the preclassification was to separate spectra with analyte-rich signals (i.e., cartilage) from spectra with analyte-poor (and high-matrix) signals (i.e., water). The human datasets 1 and 2 contained 814 and 815 spectra, while the bovine dataset contained 396 spectra. A pure water spectrum was used as a reference spectrum in the MSC approach. A threshold for the root mean square error (RMSE) was used to separate cartilage from water spectra for broadband and the sparse spectral data. Additionally, standard noise-to-ratio and principle component analysis were applied on broadband spectra. The fully automated MSC preclassification approach, using water as reference spectrum, performed as well as the manual visual inspection. Moreover, it enabled not only separation of cartilage from water spectra in broadband spectral datasets, but also in sparse datasets where manual visual inspection cannot be applied.
Collapse
Affiliation(s)
- Hafeez Ur Rehman
- Faculty of Science and Technology, Norwegian University of Life Sciences, 1430 Ås, Norway; (V.T.); (B.Z.); (J.H.S.); (A.K.)
| | - Valeria Tafintseva
- Faculty of Science and Technology, Norwegian University of Life Sciences, 1430 Ås, Norway; (V.T.); (B.Z.); (J.H.S.); (A.K.)
| | - Boris Zimmermann
- Faculty of Science and Technology, Norwegian University of Life Sciences, 1430 Ås, Norway; (V.T.); (B.Z.); (J.H.S.); (A.K.)
| | - Johanne Heitmann Solheim
- Faculty of Science and Technology, Norwegian University of Life Sciences, 1430 Ås, Norway; (V.T.); (B.Z.); (J.H.S.); (A.K.)
| | - Vesa Virtanen
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, 90570 Oulu, Finland; (V.V.); (S.S.); (L.R.)
| | - Rubina Shaikh
- Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland; (R.S.); (E.N.); (I.A.)
- Department of Orthopedics, Traumatology, Hand Surgery, Kuopio University Hospital, 70210 Kuopio, Finland
| | - Ervin Nippolainen
- Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland; (R.S.); (E.N.); (I.A.)
| | - Isaac Afara
- Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland; (R.S.); (E.N.); (I.A.)
| | - Simo Saarakkala
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, 90570 Oulu, Finland; (V.V.); (S.S.); (L.R.)
| | - Lassi Rieppo
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, 90570 Oulu, Finland; (V.V.); (S.S.); (L.R.)
| | - Patrick Krebs
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89081 Ulm, Germany; (P.K.); (P.F.); (B.M.)
| | - Polina Fomina
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89081 Ulm, Germany; (P.K.); (P.F.); (B.M.)
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89081 Ulm, Germany; (P.K.); (P.F.); (B.M.)
| | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, 1430 Ås, Norway; (V.T.); (B.Z.); (J.H.S.); (A.K.)
| |
Collapse
|
4
|
Bogomolov AY. Optical Multisensor Systems in Analytical Spectroscopy. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822030030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
5
|
Ochoa M, Algorri JF, Roldán-Varona P, Rodríguez-Cobo L, López-Higuera JM. Recent Advances in Biomedical Photonic Sensors: A Focus on Optical-Fibre-Based Sensing. SENSORS (BASEL, SWITZERLAND) 2021; 21:6469. [PMID: 34640788 PMCID: PMC8513032 DOI: 10.3390/s21196469] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 01/22/2023]
Abstract
In this invited review, we provide an overview of the recent advances in biomedical photonic sensors within the last five years. This review is focused on works using optical-fibre technology, employing diverse optical fibres, sensing techniques, and configurations applied in several medical fields. We identified technical innovations and advancements with increased implementations of optical-fibre sensors, multiparameter sensors, and control systems in real applications. Examples of outstanding optical-fibre sensor performances for physical and biochemical parameters are covered, including diverse sensing strategies and fibre-optical probes for integration into medical instruments such as catheters, needles, or endoscopes.
Collapse
Affiliation(s)
- Mario Ochoa
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
| | - José Francisco Algorri
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
| | - Pablo Roldán-Varona
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
- CIBER-bbn, Institute of Health Carlos III, 28029 Madrid, Spain;
| | | | - José Miguel López-Higuera
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
- CIBER-bbn, Institute of Health Carlos III, 28029 Madrid, Spain;
| |
Collapse
|
6
|
Kazarian SG. Perspectives on infrared spectroscopic imaging from cancer diagnostics to process analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119413. [PMID: 33461133 DOI: 10.1016/j.saa.2020.119413] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 05/20/2023]
Abstract
This perspective paper discusses the recent and potential developments in the application of infrared spectroscopic imaging, with a focus on Fourier transform infrared (FTIR) spectroscopic imaging. The current state-of-the-art has been briefly reported, that includes recent trends and advances in applications of FTIR spectroscopic imaging to biomedical systems. Here, some new opportunities for research in the biomedical field, particularly for cancer diagnostics, and also in the engineering field of process analysis; as well as challenges in FTIR spectroscopic imaging are discussed. Current and future prospects that will bring spectroscopic imaging technologies to the frontier of advanced medical diagnostics and to process analytics in engineering applications will be outlined in this opinion paper.
Collapse
Affiliation(s)
- Sergei G Kazarian
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom.
| |
Collapse
|
7
|
Bogomolov A, Sakharova T, Usenov I, Mizaikoff C, Belikova V, Perevoschikov S, Artyushenko V, Bibikova O. Fiber Probe for Simultaneous Mid-Infrared and Fluorescence Spectroscopic Analysis. Anal Chem 2021; 93:6013-6018. [PMID: 33821623 DOI: 10.1021/acs.analchem.1c00080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A multispectral fiber optic probe has been developed that enables simultaneous analysis of various liquid and solid samples using attenuated total reflection mid-infrared spectroscopy and fluorimetry. The probe design was optimized using ray-tracing simulation of the light propagation. Technical evaluation of the probe has confirmed its output signal quality that was comparable to that of respective probes for single methods. The capability of the probe to deliver complementary chemical information from the same measurement point has been illustrated using model samples of biological tissue. Qualitative analysis of the biological tissue is one of the most important applications of the developed multispectral probe.
Collapse
Affiliation(s)
- Andrey Bogomolov
- Samara State Technical University, Molodogvardeyskaya 244, 443100 Samara, Russia
| | | | - Iskander Usenov
- art photonics GmbH, Rudower Chaussee 46, Berlin 12489, Germany.,Technische Universität Berlin, Institute of Optics and Atomic Physics, Straße des 17, Juni 135, 10623 Berlin, Germany
| | | | - Valeria Belikova
- Samara State Technical University, Molodogvardeyskaya 244, 443100 Samara, Russia
| | - Stanislav Perevoschikov
- Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, Building 1, Moscow 121205, Russia
| | | | - Olga Bibikova
- art photonics GmbH, Rudower Chaussee 46, Berlin 12489, Germany
| |
Collapse
|
8
|
Basov S, Dankner Y, Weinstein M, Katzir A, Platkov M. Technical Note: Noninvasive mid-IR fiber-optic evanescent wave spectroscopy (FEWS) for early detection of skin cancers. Med Phys 2020; 47:5523-5530. [PMID: 32970830 DOI: 10.1002/mp.14471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/20/2020] [Accepted: 08/31/2020] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Melanoma is the most lethal of the three primary skin cancers, including also basal cell carcinoma (BCC) and squamous cell carcinoma (SCC), which are less lethal. The accepted diagnosis process involves manually observing a suspicious lesion through a Dermascope (i.e., a magnifying glass), followed by a biopsy. This process relies on the skill and the experience of a dermatologist. However, to the best of our knowledge, there is no accepted automatic, noninvasive, and rapid method for the early detection of the three types of skin cancer, distinguishing between them and noncancerous lesions, and identifying each of them. It is our aim to develop such a system. METHODS We developed a fiber-optic evanescent wave spectroscopy (FEWS) system based on middle infrared (mid-IR) transmitting AgClBr fibers and a Fourier-transform infrared spectrometer (FTIR). We used the system to perform mid-IR spectral measurements on suspicious lesions in 90 patients, before biopsy, in situ, and in real time. The lesions were then biopsied and sent for pathology. The spectra were analyzed and the differences between pathological and healthy tissues were found and correlated. RESULTS Five of the lesions measured were identified as melanomas, seven as BCC, and three as SCC. Using mathematical analyses of the spectra of these lesions we were able to tell that all were skin cancers and we found specific and easily identifiable differences between them. CONCLUSIONS This FEWS method lends itself to rapid, automatic and noninvasive early detection and characterization of skin cancers. It will be easily implemented in community clinics and has the potential to greatly simplify the diagnosis process.
Collapse
Affiliation(s)
- Svetlana Basov
- Department of Biomedical Engineering, Tel Aviv University, 30 Haim Levanon, Tel Aviv, 6997801, Israel
| | - Yair Dankner
- Shenkar College of Engineering and Design, 12 Anne Frank, Ramat Gan, 52526, Israel
| | - Marcelo Weinstein
- Nuclear Research Center Negev, P.O.B. 9001, Beer Sheva, 8419001, Israel
| | - Abraham Katzir
- School of Physics and Astronomy, Tel Aviv University, 30 Haim Levanon, Tel Aviv-Yafo, 6997801, Israel
| | - Max Platkov
- Nuclear Research Center Negev, P.O.B. 9001, Beer Sheva, 8419001, Israel
| |
Collapse
|
9
|
Budidha K, Mamouei M, Baishya N, Qassem M, Vadgama P, Kyriacou PA. Identification and Quantitative Determination of Lactate Using Optical Spectroscopy-Towards a Noninvasive Tool for Early Recognition of Sepsis. SENSORS 2020; 20:s20185402. [PMID: 32967189 PMCID: PMC7570541 DOI: 10.3390/s20185402] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/13/2020] [Accepted: 09/18/2020] [Indexed: 12/13/2022]
Abstract
Uninterrupted monitoring of serum lactate levels is a prerequisite in the critical care of patients prone to sepsis, cardiogenic shock, cardiac arrest, or severe lung disease. Yet there exists no device to continuously measure blood lactate in clinical practice. Optical spectroscopy together with multivariate analysis is proposed as a viable noninvasive tool for estimation of lactate in blood. As an initial step towards this goal, we inspected the plausibility of predicting the concentration of sodium lactate (NaLac) from the UV/visible, near-infrared (NIR), and mid-infrared (MIR) spectra of 37 isotonic phosphate-buffered saline (PBS) samples containing NaLac ranging from 0 to 20 mmol/L. UV/visible (300–800 nm) and NIR (800–2600 nm) spectra of PBS samples were collected using the PerkinElmer Lambda 1050 dual-beam spectrophotometer, while MIR (4000–500 cm−1) spectra were collected using the Spectrum two FTIR spectrometer. Absorption bands in the spectra of all three regions were identified and functional groups were assigned. The concentration of lactate in samples was predicted using the Partial Least-Squares (PLS) regression analysis and leave-one-out cross-validation. The regression analysis showed a correlation coefficient (R2) of 0.926, 0.977, and 0.992 for UV/visible, NIR, and MIR spectra, respectively, between the predicted and reference samples. The RMSECV of UV/visible, NIR, and MIR spectra was 1.59, 0.89, and 0.49 mmol/L, respectively. The results indicate that optical spectroscopy together with multivariate models can achieve a superior technique in assessing lactate concentrations.
Collapse
Affiliation(s)
- Karthik Budidha
- Research Centre for Biomedical Engineering, School of Engineering and Mathematical Sciences, University of London, Northampton Square, London EC1V 0HB, UK; (M.M.); (N.B.); (M.Q.); (P.A.K.)
- Correspondence: ; Tel.: +44-2070403878
| | - Mohammad Mamouei
- Research Centre for Biomedical Engineering, School of Engineering and Mathematical Sciences, University of London, Northampton Square, London EC1V 0HB, UK; (M.M.); (N.B.); (M.Q.); (P.A.K.)
| | - Nystha Baishya
- Research Centre for Biomedical Engineering, School of Engineering and Mathematical Sciences, University of London, Northampton Square, London EC1V 0HB, UK; (M.M.); (N.B.); (M.Q.); (P.A.K.)
| | - Meha Qassem
- Research Centre for Biomedical Engineering, School of Engineering and Mathematical Sciences, University of London, Northampton Square, London EC1V 0HB, UK; (M.M.); (N.B.); (M.Q.); (P.A.K.)
| | - Pankaj Vadgama
- Interdisciplinary Research Centre (IRC) in Biomedical Materials, Queen Mary University of London (QMUL), Mile End Road, London E1 4NS, UK;
| | - Panayiotis A. Kyriacou
- Research Centre for Biomedical Engineering, School of Engineering and Mathematical Sciences, University of London, Northampton Square, London EC1V 0HB, UK; (M.M.); (N.B.); (M.Q.); (P.A.K.)
| |
Collapse
|
10
|
Katiyi A, Zorea J, Halstuch A, Elkabets M, Karabchevsky A. Surface roughness-induced absorption acts as an ovarian cancer cells growth sensor-monitor. Biosens Bioelectron 2020; 161:112240. [PMID: 32365013 DOI: 10.1016/j.bios.2020.112240] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/13/2020] [Accepted: 04/23/2020] [Indexed: 02/07/2023]
Abstract
Uncontrolled growth of ovarian cancer cells is the fifth leading cause of female cancer deaths since most ovarian cancer patients are diagnosed at an advanced stage of metastatic disease. Here, we report on the sensor for monitoring the cancer treatment efficiency in real-time. We measure the optical interaction between the evanescent fields of microfiber and ovarian cancer inter-cellular medium at different treatment stages. Spectral absorption signatures are correlated with optical micrographs and western blot tests. We found that the treatment of tumor cells with induces both cells growth arrest and alter the spectral lines in a dose-dependent manner. These observations are mediated by surface roughness out of silica glass material, form an essential step toward the development of early detection of response to cancer therapy.
Collapse
Affiliation(s)
- Aviad Katiyi
- School of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel; Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Jonathan Zorea
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Aviran Halstuch
- School of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel; Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Moshe Elkabets
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Alina Karabchevsky
- School of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel; Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.
| |
Collapse
|
11
|
Song Y, Cong Y, Wang B, Zhang N. Applications of Fourier transform infrared spectroscopy to pharmaceutical preparations. Expert Opin Drug Deliv 2020; 17:551-571. [PMID: 32116058 DOI: 10.1080/17425247.2020.1737671] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Introduction: Various pharmaceutical preparations are widely used for clinical treatment. Elucidation of the mechanisms of drug release and evaluation of drug efficacy in biological samples are important in drug design and drug quality control.Areas covered: This review classifies recent applications of Fourier transform infrared (FTIR) spectroscopy in the field of medicine to comprehend drug release and diffusion. Drug release is affected by many factors of preparations, such as drug delivery system and microstructure polymorphism. The applications of FTIR imaging and nano-FTIR technique in biological samples lay a foundation for studying drug mechanism in vivo.Expert opinion: FTIR spectroscopy meets the research needs on preparations to understand the processes and mechanisms underlying drug release. The combination of attenuated total reflectance-FTIR imaging and nano-FTIR accompanied by chemometrics is a potent tool to overcome the deficiency of conventional infrared detection. FTIR shows an enormous potential in drug characterization, drug quality control, and bio-sample detection.
Collapse
Affiliation(s)
- Yijie Song
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuanhua Cong
- Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai, China
| | - Bing Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai, China
| | - Ning Zhang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| |
Collapse
|
12
|
Sharaha U, Rodriguez-Diaz E, Sagi O, Riesenberg K, Salman A, Bigio IJ, Huleihel M. Fast and reliable determination of Escherichia coli susceptibility to antibiotics: Infrared microscopy in tandem with machine learning algorithms. JOURNAL OF BIOPHOTONICS 2019; 12:e201800478. [PMID: 30916881 DOI: 10.1002/jbio.201800478] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/12/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Antimicrobial drugs have an important role in controlling bacterial infectious diseases. However, the increasing resistance of bacteria to antibiotics has become a global health care problem. Rapid determination of antimicrobial susceptibility of clinical isolates is often crucial for the optimal antimicrobial therapy. The conventional methods used in medical centers for susceptibility testing are time-consuming (>2 days). Two bacterial culture steps are needed, the first is used to grow the bacteria from urine on agar plates to determine the species of the bacteria (~24 hours). The second culture is used to determine the susceptibility by growing colonies from the first culture for another 24 hours. Here, the main goal is to examine the potential of infrared microscopy combined with multivariate analysis, to reduce the time it takes to identify Escherichia coli susceptibility to antibiotics and to determine the optimum choice of antibiotic to which the bacteria will respond. E coli colonies of the first culture from patients with urinary tract infections (UTI) were examined for the bacterial susceptibility using Fourier-transform infrared (FTIR). Our results show that it is possible to determine the optimum choice of antibiotic with better than 89% sensitivity, in the time span of few minutes, following the first culture.
Collapse
Affiliation(s)
- Uraib Sharaha
- Department of Microbiology, Immunology and Genetic, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eladio Rodriguez-Diaz
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts
- Section of Gastroenterology, VA Boston Healthcare System, Boston, Massachusetts
| | - Orli Sagi
- Microbiology Laboratory, Soroka University Medical Center, Beer-Sheva, Israel
| | - Klaris Riesenberg
- Infectious Diseases Department, Soroka University Medical Center, Beer-Sheva, Israel
| | - Ahmad Salman
- Department of Physics, SCE-Shamoon College of Engineering, Beer-Sheva, Israel
| | - Irving J Bigio
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts
- Department of Electrical & Computer Engineering, Boston University, Boston, Massachusetts
| | - Mahmoud Huleihel
- Department of Microbiology, Immunology and Genetic, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| |
Collapse
|
13
|
Predictive Value of Opto-magnetic Imaging Spectroscopy in Discriminating Oral Squamous Cell Carcinoma from Non-tumor Tissue in Surgical Margins. J Med Biol Eng 2019. [DOI: 10.1007/s40846-019-00473-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
14
|
|
15
|
Old OJ, Lloyd GR, Nallala J, Isabelle M, Almond LM, Shepherd NA, Kendall CA, Shore AC, Barr H, Stone N. Rapid infrared mapping for highly accurate automated histology in Barrett's oesophagus. Analyst 2018; 142:1227-1234. [PMID: 27713951 DOI: 10.1039/c6an01871h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Barrett's oesophagus (BE) is a premalignant condition that can progress to oesophageal adenocarcinoma. Endoscopic surveillance aims to identify potential progression at an early, treatable stage, but generates large numbers of tissue biopsies. Fourier transform infrared (FTIR) mapping was used to develop an automated histology tool for detection of BE and Barrett's neoplasia in tissue biopsies. 22 oesophageal tissue samples were collected from 19 patients. Contiguous frozen tissue sections were taken for pathology review and FTIR imaging. 45 mid-IR images were measured on an Agilent 620 FTIR microscope with an Agilent 670 spectrometer. Each image covering a 140 μm × 140 μm region was measured in 5 minutes, using a 1.1 μm2 pixel size and 64 scans per pixel. Principal component fed linear discriminant analysis was used to build classification models based on spectral differences, which were then tested using leave-one-sample-out cross validation. Key biochemical differences were identified by their spectral signatures: high glycogen content was seen in normal squamous (NSQ) tissue, high glycoprotein content was observed in glandular BE tissue, and high DNA content in dysplasia/adenocarcinoma samples. Classification of normal squamous samples versus 'abnormal' samples (any stage of Barrett's) was performed with 100% sensitivity and specificity. Neoplastic Barrett's (dysplasia or adenocarcinoma) was identified with 95.6% sensitivity and 86.4% specificity. Highly accurate pathology classification can be achieved with FTIR measurement of frozen tissue sections in a clinically applicable timeframe.
Collapse
Affiliation(s)
- O J Old
- Gloucestershire Hospitals NHS Foundation Trust, Gloucester, GL1 3NN, UK
| | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Laimer J, Henn R, Helten T, Sprung S, Zelger B, Zelger B, Steiner R, Schnabl D, Offermanns V, Bruckmoser E, Huck CW. Amalgam tattoo versus melanocytic neoplasm - Differential diagnosis of dark pigmented oral mucosa lesions using infrared spectroscopy. PLoS One 2018; 13:e0207026. [PMID: 30399191 PMCID: PMC6219804 DOI: 10.1371/journal.pone.0207026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 10/22/2018] [Indexed: 12/14/2022] Open
Abstract
Background Dark pigmented lesions of the oral mucosa can represent a major diagnostic challenge. A biopsy is usually required to determine the nature of such intraoral discolorations. This study investigates the potential use of infrared spectroscopy for differential diagnosis of amalgam tattoos versus benign or malignant melanocytic neoplasms. Materials and methods For this retrospective study, formalin-fixed paraffin-embedded tissue (FFPE) specimens of dark pigmented lesions concerning the oral mucosa or the lip were investigated using mid infrared spectroscopy. The samples were chosen from patients who had undergone a mucosal biopsy at the University Hospital Innsbruck (Austria) between the years 2000 and 2017. Principal component analysis was used for data exploration. Evaluation was based on the superimposition of the recorded spectra and the corresponding histologic slides. Results In total, 22 FFPE specimens were analyzed. Clear differences were found between amalgam and non-amalgam samples. A general weakening of the penetrating infrared radiation allowed for unspecific discrimination between these two classes. An overall accuracy in predicting the correct class of 95.24% was achieved. Conclusion Infrared spectroscopy appears to be a suitable technique to differentiate between amalgam tattoos and melanocytic lesions in FFPE samples. It could potentially be applied in vivo, too, serving as a non-invasive diagnostic tool for intraoral dark pigmented lesions.
Collapse
Affiliation(s)
- Johannes Laimer
- University Hospital for Craniomaxillofacial and Oral Surgery, Innsbruck, Austria
| | - Raphael Henn
- Institute of Analytical Chemistry and Radiochemistry, Innsbruck, Austria
| | - Tom Helten
- University Hospital for Craniomaxillofacial and Oral Surgery, Innsbruck, Austria
| | - Susanne Sprung
- Institute of Pathology, Medical University, Innsbruck, Austria
| | - Bettina Zelger
- Institute of Pathology, Medical University, Innsbruck, Austria
| | - Bernhard Zelger
- University Hospital for Dermatology, Venereology and Allergology, Innsbruck, Austria
| | - René Steiner
- University Hospital for Dental Prosthetics and Restorative Dentistry, Innsbruck, Austria
| | - Dagmar Schnabl
- University Hospital for Dental Prosthetics and Restorative Dentistry, Innsbruck, Austria
| | - Vincent Offermanns
- University Hospital for Craniomaxillofacial and Oral Surgery, Innsbruck, Austria
| | | | - Christian W. Huck
- Institute of Analytical Chemistry and Radiochemistry, Innsbruck, Austria
| |
Collapse
|
17
|
Classification of Healthy and Cancer States of Colon Epithelial Tissues Using Opto-magnetic Imaging Spectroscopy. J Med Biol Eng 2018. [DOI: 10.1007/s40846-018-0414-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
18
|
Torres C, Grippo PJ. Pancreatic cancer subtypes: a roadmap for precision medicine. Ann Med 2018; 50:277-287. [PMID: 29537309 PMCID: PMC6151873 DOI: 10.1080/07853890.2018.1453168] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/25/2018] [Accepted: 03/09/2018] [Indexed: 12/16/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is projected to become the second cause of cancer-related deaths by 2020. Although it has traditionally been approached as a disease, accumulated evidences point to the clinical heterogeneity of this disease, which translate into disparity in outcomes among the patients. Much emphasis has been put into patient classification introducing a platform for more tailored therapies. In the last 10 years, there have been important advances in the understanding of the molecular pathogenesis of PDAC, which has culminated with a comprehensive integrated genomic analysis from RNA expression profiles. Bailey et al. defined four subtypes and the different transcriptional networks underlying them. Firstly, we briefly describe and compare different subtyping approaches, which are mostly based on tissue mRNA expression analysis. We propose that these latest approaches to disease classification embrace not only those patients that are surgically resectable (20%), but even patients ineligible for surgery. Such considerations will include possible reclassification of these specific subtypes, enabling more personalized diagnosis and individualized treatment. The ultimate goal of this review is to identify current challenges in this area and summarize current efforts in developing clinical modalities that can effectively identify these subtypes in order to advance Precision Medicine. KEY MESSAGES • Pancreatic cancer can no longer be considered as one disease. • The heterogeneity underlying pancreatic cancer patients makes therapeutic options based on one-size-fits-all approach ineffective. • Identifying patients that could benefit from a specific treatment would help to avoid futile therapy approaches and to improve outcomes and quality of life of those whose long-term survival is unpromising.
Collapse
Affiliation(s)
- Carolina Torres
- a Department of Medicine , University of Illinois at Chicago , Chicago , IL , USA
| | - Paul J Grippo
- a Department of Medicine , University of Illinois at Chicago , Chicago , IL , USA
| |
Collapse
|
19
|
IDH1 mutation in human glioma induces chemical alterations that are amenable to optical Raman spectroscopy. J Neurooncol 2018; 139:261-268. [PMID: 29761368 DOI: 10.1007/s11060-018-2883-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/23/2018] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Mutations in the isocytrate dehydrogenase 1 (IDH1) gene are early genetic events in glioma pathogenesis and cause profound metabolic changes. Because this genotype is found in virtually every tumor cell, therapies targeting mutant IDH1 protein are being developed. The intraoperative administration of those therapies would require fast technologies for the determination of IDH1 genotype. As of today, there is no such diagnostic test available. Recently, infrared spectroscopy was shown to bridge this gap. Here, we tested Raman spectroscopy for analysis of IDH1 genotype in glioma, which constitutes an alternative contact-free technique with the potential of being applicable in situ. METHODS Human glioma samples (n = 36) were obtained during surgery and cryosections were prepared. IDH1 mutations were assessed using DNA sequencing and 100 Raman spectra were obtained for each sample. RESULTS Analysis of Raman spectra revealed increased intensities in spectral bands related to DNA in IDH1 mutant glioma while bands assigned to molecular vibrations of lipids were significantly decreased. Moreover, intensities of Raman bands assigned to proteins differed in IDH1 mutant and IDH1 wild-type glioma, suggesting alterations in the protein profile. The selection of five bands (498, 826, 1003, 1174 and 1337 cm-1) allowed the classification of Raman spectra according to IDH1 genotype with a correct rate of 89%. CONCLUSION Raman spectroscopy constitutes a simple, rapid and safe procedure for determination of the IDH1 mutation that shows great promise for clinically relevant in situ diagnostics.
Collapse
|
20
|
Pucetaite M, Velicka M, Urboniene V, Ceponkus J, Bandzeviciute R, Jankevicius F, Zelvys A, Sablinskas V, Steiner G. Rapid intra-operative diagnosis of kidney cancer by attenuated total reflection infrared spectroscopy of tissue smears. JOURNAL OF BIOPHOTONICS 2018; 11:e201700260. [PMID: 29316381 DOI: 10.1002/jbio.201700260] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 01/06/2018] [Indexed: 05/13/2023]
Abstract
Herein, a technique to analyze air-dried kidney tissue impression smears by means of attenuated total reflection infrared (ATR-IR) spectroscopy is presented. Spectral tumor markers-absorption bands of glycogen-are identified in the ATR-IR spectra of the kidney tissue smear samples. Thin kidney tissue cryo-sections currently used for IR spectroscopic analysis lack such spectral markers as the sample preparation causes irreversible molecular changes in the tissue. In particular, freeze-thaw cycle results in degradation of the glycogen and reduction or complete dissolution of its content. Supervised spectral classification was applied to the recorded spectra of the smears and the test spectra were classified with a high accuracy of 92% for normal tissue and 94% for tumor tissue, respectively. For further development, we propose that combination of the method with optical fiber ATR probes could potentially be used for rapid real-time intra-operative tissue analysis without interfering with either the established protocols of pathological examination or the ordinary workflow of operating surgeon. Such approach could ensure easier transition of the method to clinical applications where it may complement the results of gold standard histopathology examination and aid in more precise resection of kidney tumors.
Collapse
Affiliation(s)
- Milda Pucetaite
- Department of General Physics and Spectroscopy, Vilnius University, Vilnius, Lithuania
| | - Martynas Velicka
- Department of General Physics and Spectroscopy, Vilnius University, Vilnius, Lithuania
| | - Vidita Urboniene
- Department of General Physics and Spectroscopy, Vilnius University, Vilnius, Lithuania
| | - Justinas Ceponkus
- Department of General Physics and Spectroscopy, Vilnius University, Vilnius, Lithuania
| | - Rimante Bandzeviciute
- Department of General Physics and Spectroscopy, Vilnius University, Vilnius, Lithuania
| | - Feliksas Jankevicius
- Faculty of Medicine, Vilnius University, Vilnius, Lithuania
- Lithuanian National Cancer Institute, Vilnius, Lithuania
| | - Arunas Zelvys
- Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Valdas Sablinskas
- Department of General Physics and Spectroscopy, Vilnius University, Vilnius, Lithuania
| | - Gerald Steiner
- Department of General Physics and Spectroscopy, Vilnius University, Vilnius, Lithuania
- Faculty of Medicine Carl Gustav Carus, Clinical Sensoring and Monitoring, Dresden University of Technology, Dresden, Germany
| |
Collapse
|
21
|
Bhattacharjee TT, Nicodemo MC, Sant'Anna LB, Lo Schiavo Arisawa EA, Raniero L. Tendinopathy diagnosis and treatment monitoring using attenuated total reflectance-Fourier transform infrared spectroscopy. JOURNAL OF BIOPHOTONICS 2018; 11:e201700256. [PMID: 29160619 DOI: 10.1002/jbio.201700256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/19/2017] [Indexed: 06/07/2023]
Abstract
Tendinopathy, an important sports injury afflicting athletes and general public, is associated with huge economic losses. The currently used diagnostic tests are subjective, show moderate sensitivity and specificity; while treatment failures persist despite advances in therapy. This highlights the need for tendinopathy diagnostic and treatment monitoring tools. This study investigates tendon injury, natural healing and effect of treatment using ATR-FTIR complemented with histopathology. Control (C), injured (I) and treated (T) rat tendons were extracted 3, 7, 14 and 28 days post-injury/treatment, representing phases of healing; and subjected to hematoxylin & eosin staining as well as spectroscopy. While C showed no change, I- and T-related histological changes could be clearly observed in stained sections. ATR-FTIR spectra highlighted the biochemical changes within groups. Multivariate analysis could classify C, I and T with 75%; different days between groups with 84%; and different days within group with 65% efficiency. Results suggest that such analysis can not only identify C, I or T but also different phases of healing. Difference between I and T at different time points also suggest change in rate of healing. Further studies may help develop this technique for clinical diagnosis and treatment monitoring in future.
Collapse
Affiliation(s)
- Tanmoy T Bhattacharjee
- Laboratory of Nanosensors, Research and Development Institute (IPD), University of Paraíba Valley (UNIVAP), São Paulo, Brazil
| | - Mariana C Nicodemo
- Biostimulation and Tissue Repair Laboratory, Research and Development Institute (IPD), University of Paraíba Valley (UNIVAP), São Paulo, Brazil
| | - Luciana B Sant'Anna
- Histology and Regenerative Therapy Laboratory, Research and Development Institute (IPD), University of Paraíba Valley (UNIVAP), São Paulo, Brazil
| | - Emilia A Lo Schiavo Arisawa
- Biostimulation and Tissue Repair Laboratory, Research and Development Institute (IPD), University of Paraíba Valley (UNIVAP), São Paulo, Brazil
| | - Leandro Raniero
- Laboratory of Nanosensors, Research and Development Institute (IPD), University of Paraíba Valley (UNIVAP), São Paulo, Brazil
| |
Collapse
|
22
|
Gomes RNS, Bhattacharjee TT, Carvalho LFCS, Soares LES. ATR-FTIR spectroscopy and μ-EDXRF spectrometry monitoring of enamel erosion caused by medicaments used in the treatment of respiratory diseases. Microsc Res Tech 2017; 81:220-227. [DOI: 10.1002/jemt.22970] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/05/2017] [Accepted: 10/23/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Raimundo Nonato Silva Gomes
- Laboratory of Dentistry and Applied Materials (LDAM); Research and Development Institute (IP&D), Universidade do Vale do Paraíba; São José dos Campos São Paulo Brazil
| | - Tanmoy T. Bhattacharjee
- Laboratory of Nanosensors; Research and Development Institute (IP&D), Universidade do Vale do Paraíba; São José dos Campos São Paulo Brazil
| | - Luis Felipe C. S. Carvalho
- Laboratory of Dentistry and Applied Materials (LDAM); Research and Development Institute (IP&D), Universidade do Vale do Paraíba; São José dos Campos São Paulo Brazil
- Programa de Pós Graduação em Odontologia, Departamento de Odontologia; Universidade de Taubaté; São Paulo Brazil
| | - Luís Eduardo Silva Soares
- Laboratory of Dentistry and Applied Materials (LDAM); Research and Development Institute (IP&D), Universidade do Vale do Paraíba; São José dos Campos São Paulo Brazil
- Health Sciences College, Dentistry Course; Universidade do Vale do Paraíba; São José dos Campos São Paulo Brazil
| |
Collapse
|
23
|
Gomes RNS, Bhattacharjee TT, Carvalho LFCS, Soares LES. Fast monitoring of tooth erosion caused by medicaments used in the treatment of respiratory diseases by ATR-FTIR and μ-EDXRF analysis. Lasers Med Sci 2017; 32:2063-2072. [DOI: 10.1007/s10103-017-2328-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 09/13/2017] [Indexed: 11/29/2022]
|
24
|
Protti S, Albini A, Viswanathan R, Greer A. Targeting Photochemical Scalpels or Lancets in the Photodynamic Therapy Field—The Photochemist's Role. Photochem Photobiol 2017; 93:1139-1153. [DOI: 10.1111/php.12766] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 02/20/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Stefano Protti
- PhotoGreen Lab Department of Chemistry University of Pavia Pavia Italy
| | - Angelo Albini
- PhotoGreen Lab Department of Chemistry University of Pavia Pavia Italy
| | | | - Alexander Greer
- Department of Chemistry Brooklyn College Brooklyn NY
- Ph.D. Program in Chemistry The Graduate Center of the City University of New York New York City NY
| |
Collapse
|
25
|
Krasznai DJ, Champagne Hartley R, Roy HM, Champagne P, Cunningham MF. Compositional analysis of lignocellulosic biomass: conventional methodologies and future outlook. Crit Rev Biotechnol 2017; 38:199-217. [PMID: 28595468 DOI: 10.1080/07388551.2017.1331336] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The composition and structural properties of lignocellulosic biomass have significant effects on its downstream conversion to fuels, biomaterials, and building-block chemicals. Specifically, the recalcitrance to modification and compositional variability of lignocellulose make it challenging to optimize and control the conditions under which the conversion takes place. Various characterization protocols have been developed over the past 150 years to elucidate the structural properties and compositional patterns that affect the processing of lignocellulose. Early characterization techniques were developed to estimate the relative digestibility and nutritional value of plant material after ingestion by ruminants and humans alike (e.g. dietary fiber). Over the years, these empirical techniques have evolved into statistical approaches that give a broader and more informative analysis of lignocellulose for conversion processes, to the point where an entire compositional and structural analysis of lignocellulosic biomass can be completed in minutes, rather than weeks. The use of modern spectroscopy and chemometric techniques has shown promise as a rapid and cost effective alternative to traditional empirical techniques. This review serves as an overview of the compositional analysis techniques that have been developed for lignocellulosic biomass in an effort to highlight the motivation and migration towards rapid, accurate, and cost-effective data-driven chemometric methods. These rapid analysis techniques can potentially be used to optimize future biorefinery unit operations, where large quantities of lignocellulose are continually processed into products of high value.
Collapse
Affiliation(s)
- Daniel J Krasznai
- a Department of Chemical Engineering , Queen's University , Kingston , Ontario , Canada
| | | | - Hannah M Roy
- b Department of Civil Engineering & Department of Chemical Engineering , Queen's University , Kingston , Ontario , Canada
| | - Pascale Champagne
- a Department of Chemical Engineering , Queen's University , Kingston , Ontario , Canada
| | - Michael F Cunningham
- a Department of Chemical Engineering , Queen's University , Kingston , Ontario , Canada
| |
Collapse
|
26
|
Naurecka ML, Sierakowski BM, Kasprzycka W, Dojs A, Dojs M, Suszyński Z, Kwaśny M. FTIR-ATR and FT-Raman Spectroscopy for Biochemical Changes in Oral Tissue. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/ajac.2017.83015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
27
|
Wang W, Zhao J, Short M, Zeng H. Real-time in vivo cancer diagnosis using Raman spectroscopy. JOURNAL OF BIOPHOTONICS 2015; 8:527-45. [PMID: 25220508 DOI: 10.1002/jbio.201400026] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 07/25/2014] [Accepted: 08/12/2014] [Indexed: 05/02/2023]
Abstract
Raman spectroscopy has becoming a practical tool for rapid in vivo tissue diagnosis. This paper provides an overview on the latest development of real-time in vivo Raman systems for cancer detection. Instrumentation, data handling, as well as oncology applications of Raman techniques were covered. Optic fiber probes designs for Raman spectroscopy were discussed. Spectral data pre-processing, feature extraction, and classification between normal/benign and malignant tissues were surveyed. Applications of Raman techniques for clinical diagnosis for different types of cancers, including skin cancer, lung cancer, stomach cancer, oesophageal cancer, colorectal cancer, cervical cancer, and breast cancer, were summarized. Schematic of a real-time Raman spectrometer for skin cancer detection. Without correction, the image captured on CCD camera for a straight entrance slit has a curvature. By arranging the optic fiber array in reverse orientation, the curvature could be effectively corrected.
Collapse
Affiliation(s)
- Wenbo Wang
- Imaging Unit - Integrative Oncology Department, British Columbia Cancer Agency Research Centre, 675 West 10th Avenue, Vancouver, B.C., V5Z 1L3, Canada
- Photomedicine Institute, Department of Dermatology and Skin Science, University of British Columbia and Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
| | - Jianhua Zhao
- Imaging Unit - Integrative Oncology Department, British Columbia Cancer Agency Research Centre, 675 West 10th Avenue, Vancouver, B.C., V5Z 1L3, Canada
- Photomedicine Institute, Department of Dermatology and Skin Science, University of British Columbia and Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
| | - Michael Short
- Imaging Unit - Integrative Oncology Department, British Columbia Cancer Agency Research Centre, 675 West 10th Avenue, Vancouver, B.C., V5Z 1L3, Canada
| | - Haishan Zeng
- Imaging Unit - Integrative Oncology Department, British Columbia Cancer Agency Research Centre, 675 West 10th Avenue, Vancouver, B.C., V5Z 1L3, Canada
- Photomedicine Institute, Department of Dermatology and Skin Science, University of British Columbia and Vancouver Coastal Health Research Institute, Vancouver, BC, Canada
| |
Collapse
|
28
|
Tiwari S, Reddy VB, Bhargava R, Raman J. Computational chemical imaging for cardiovascular pathology: chemical microscopic imaging accurately determines cardiac transplant rejection. PLoS One 2015; 10:e0125183. [PMID: 25932912 PMCID: PMC4416885 DOI: 10.1371/journal.pone.0125183] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 03/10/2015] [Indexed: 02/06/2023] Open
Abstract
Rejection is a common problem after cardiac transplants leading to significant number of adverse events and deaths, particularly in the first year of transplantation. The gold standard to identify rejection is endomyocardial biopsy. This technique is complex, cumbersome and requires a lot of expertise in the correct interpretation of stained biopsy sections. Traditional histopathology cannot be used actively or quickly during cardiac interventions or surgery. Our objective was to develop a stain-less approach using an emerging technology, Fourier transform infrared (FT-IR) spectroscopic imaging to identify different components of cardiac tissue by their chemical and molecular basis aided by computer recognition, rather than by visual examination using optical microscopy. We studied this technique in assessment of cardiac transplant rejection to evaluate efficacy in an example of complex cardiovascular pathology. We recorded data from human cardiac transplant patients’ biopsies, used a Bayesian classification protocol and developed a visualization scheme to observe chemical differences without the need of stains or human supervision. Using receiver operating characteristic curves, we observed probabilities of detection greater than 95% for four out of five histological classes at 10% probability of false alarm at the cellular level while correctly identifying samples with the hallmarks of the immune response in all cases. The efficacy of manual examination can be significantly increased by observing the inherent biochemical changes in tissues, which enables us to achieve greater diagnostic confidence in an automated, label-free manner. We developed a computational pathology system that gives high contrast images and seems superior to traditional staining procedures. This study is a prelude to the development of real time in situ imaging systems, which can assist interventionists and surgeons actively during procedures.
Collapse
Affiliation(s)
- Saumya Tiwari
- Department of Bioengineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana Champaign, Urbana, Illinois, 61801, United States of America
| | - Vijaya B. Reddy
- Department of Pathology, Rush University Medical Center, 1725 West Harrison St, Chicago, Illinois, 60612, United States of America
| | - Rohit Bhargava
- Department of Bioengineering, Chemistry, Mechanical Science and Engineering, Chemical and Biomolecular Engineering, Electrical and Computer Engineering, Beckman Institute for Advanced Science and Technology and University of Illinois Cancer Center, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801, United States of America
| | - Jaishankar Raman
- Cardiac Surgery, Advanced Heart Failure Transplantation & Mechanical Circulatory Support, Rush University Medical Center, 1725 West Harrison St, Chicago, Illinois, 60612, United States of America
- * E-mail:
| |
Collapse
|
29
|
Near-infrared spectroscopy as a diagnostic tool for distinguishing between normal and malignant colorectal tissues. BIOMED RESEARCH INTERNATIONAL 2015; 2015:472197. [PMID: 25654106 PMCID: PMC4309295 DOI: 10.1155/2015/472197] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 12/26/2014] [Indexed: 12/04/2022]
Abstract
Cancer diagnosis is one of the most important tasks of biomedical research and has become the main objective of medical investigations.
The present paper proposed an analytical strategy for distinguishing between normal and malignant colorectal tissues
by combining the use of near-infrared (NIR) spectroscopy with chemometrics. The successive projection algorithm-linear discriminant analysis
(SPA-LDA) was used to seek a reduced subset of variables/wavenumbers and build a diagnostic model of LDA. For comparison, the partial least
squares-discriminant analysis (PLS-DA) based on full-spectrum classification was also used as the reference. Principal component analysis (PCA)
was used for a preliminary analysis. A total of 186 spectra from 20 patients with partial colorectal resection were collected and divided into three subsets for training,
optimizing, and testing the model. The results showed that, compared to PLS-DA, SPA-LDA provided more parsimonious model using only three
wavenumbers/variables (4065, 4173, and 5758 cm−1) to achieve the sensitivity of 84.6%, 92.3%, and 92.3%
for the training, validation, and test sets, respectively, and the specificity of 100% for each subset. It indicated that the combination of
NIR spectroscopy and SPA-LDA algorithm can serve as a potential tool for distinguishing between normal and malignant colorectal tissues.
Collapse
|
30
|
Fein MR, Egeblad M. Caught in the act: revealing the metastatic process by live imaging. Dis Model Mech 2013; 6:580-93. [PMID: 23616077 PMCID: PMC3634643 DOI: 10.1242/dmm.009282] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The prognosis of metastatic cancer in patients is poor. Interfering with metastatic spread is therefore important for achieving better survival from cancer. Metastatic disease is established through a series of steps, including breaching of the basement membrane, intravasation and survival in lymphatic or blood vessels, extravasation, and growth at distant sites. Yet, although we know the steps involved in metastasis, the cellular and molecular mechanisms of dissemination and colonization of distant organs are incompletely understood. Here, we review the important insights into the metastatic process that have been gained specifically through the use of imaging technologies in murine, chicken embryo and zebrafish model systems, including high-resolution two-photon microscopy and bioluminescence. We further discuss how imaging technologies are beginning to allow researchers to address the role of regional activation of specific molecular pathways in the metastatic process. These technologies are shedding light, literally, on almost every step of the metastatic process, particularly with regards to the dynamics and plasticity of the disseminating cancer cells and the active participation of the microenvironment in the processes.
Collapse
Affiliation(s)
- Miriam R Fein
- Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA
| | | |
Collapse
|
31
|
Optical spectroscopic methods for intraoperative diagnosis. Anal Bioanal Chem 2013; 406:21-5. [PMID: 24136252 DOI: 10.1007/s00216-013-7401-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/12/2013] [Accepted: 09/25/2013] [Indexed: 10/26/2022]
Abstract
Molecular analytical methods are increasingly needed for a quick and reliable analysis of tissue in an operating room to provide more information during operations. In this Trends article, we highlight the current state and the developments of optical spectroscopic methods as intra operative tools. The clinical problem and challenges are illustrated on the example of brain tumor surgery. While fluorescence microscopy is already used, vibrational spectroscopy techniques will complement the standard method for brain tissue diagnostics. New portable instruments are currently available and can be stationed in the operating room for quick evaluation of tissue. The promise and limitations of fluorescence and vibrational spectroscopy as intraoperative tools are surveyed in this report.
Collapse
|
32
|
Hassan M, Tan X, Welle E, Ilev I. Fiber-optic Fourier transform infrared spectroscopy for remote label-free sensing of medical device surface contamination. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:053101. [PMID: 23742526 DOI: 10.1063/1.4803182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
As a potential major source of biochemical contamination, medical device surfaces are of critical safety concerns in the clinical practice and public health. The development of innovative sensing methods for accurate and real-time detection of medical device surface contamination is essential to protect patients from high risk infection. In this paper, we demonstrate an alternative fiber-optic Fourier Transform Infrared (FTIR) spectroscopy based sensing approach for remote, non-contact, and label-free detection of biochemical contaminants in the mid-infrared (mid-IR) region. The sensing probe is designed using mid-IR hollow fibers and FTIR measurements are carried out in reflection mode. Bovine Serum Albumin (BSA) and bacterial endotoxin of different concentrations under thoroughly dry condition are used to evaluate the detection sensitivity. The devised system can identify ≤0.0025% (≤4 × 10(11) molecules) BSA and 0.5% (0.5 EU/ml) endotoxin concentration. The developed sensing approach may be applied to detect various pathogens that pose public health threats.
Collapse
Affiliation(s)
- Moinuddin Hassan
- Optical Therapeutics and Medical Nanophotonics Laboratory, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, USA.
| | | | | | | |
Collapse
|
33
|
Stelling AL, Toher D, Uckermann O, Tavkin J, Leipnitz E, Schweizer J, Cramm H, Steiner G, Geiger KD, Kirsch M. Infrared spectroscopic studies of cells and tissues: triple helix proteins as a potential biomarker for tumors. PLoS One 2013; 8:e58332. [PMID: 23526977 PMCID: PMC3604012 DOI: 10.1371/journal.pone.0058332] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 01/30/2013] [Indexed: 11/18/2022] Open
Abstract
In this work, the infrared (IR) spectra of living neural cells in suspension, native brain tissue, and native brain tumor tissue were investigated. Methods were developed to overcome the strong IR signal of liquid water so that the signal from the cellular biochemicals could be seen. Measurements could be performed during surgeries, within minutes after resection. Comparison between normal tissue, different cell lineages in suspension, and tumors allowed preliminary assignments of IR bands to be made. The most dramatic difference between tissues and cells was found to be in weaker IR absorbances usually assigned to the triple helix of collagens. Triple helix domains are common in larger structural proteins, and are typically found in the extracellular matrix (ECM) of tissues. An algorithm to correct offsets and calculate the band heights and positions of these bands was developed, so the variance between identical measurements could be assessed. The initial results indicate the triple helix signal is surprisingly consistent between different individuals, and is altered in tumor tissues. Taken together, these preliminary investigations indicate this triple helix signal may be a reliable biomarker for a tumor-like microenvironment. Thus, this signal has potential to aid in the intra-operational delineation of brain tumor borders.
Collapse
Affiliation(s)
- Allison L. Stelling
- Clinical Sensing and Monitoring, Faculty of Medicine, Dresden University of Technology, Dresden, Germany
- * E-mail: (ALS); (KDG)
| | - Deirdre Toher
- Department of Engineering Design and Mathematics, Faculty of Environment and Technology, University of the West of England, Bristol, England
| | - Ortrud Uckermann
- Department of Neurosurgery, Faculty of Medicine and University Hospital, Dresden University of Technology, Dresden, Germany
| | - Jelena Tavkin
- Clinical Sensing and Monitoring, Faculty of Medicine, Dresden University of Technology, Dresden, Germany
| | - Elke Leipnitz
- Department of Neurosurgery, Faculty of Medicine and University Hospital, Dresden University of Technology, Dresden, Germany
| | - Julia Schweizer
- Clinical Sensing and Monitoring, Faculty of Medicine, Dresden University of Technology, Dresden, Germany
| | - Holger Cramm
- Clinical Sensing and Monitoring, Faculty of Medicine, Dresden University of Technology, Dresden, Germany
| | - Gerald Steiner
- Clinical Sensing and Monitoring, Faculty of Medicine, Dresden University of Technology, Dresden, Germany
| | - Kathrin D. Geiger
- Department of Neuropathology, Institute of Pathology, Faculty of Medicine and University Hospital, Dresden University of Technology, Dresden, Germany
- * E-mail: (ALS); (KDG)
| | - Matthias Kirsch
- Department of Neurosurgery, Faculty of Medicine and University Hospital, Dresden University of Technology, Dresden, Germany
- Center for Regenerative Therapies Dresden, Dresden University of Technology, Dresden, Germany
| |
Collapse
|
34
|
Sheng D, Liu X, Li W, Wang Y, Chen X, Wang X. Distinction of leukemia patients' and healthy persons' serum using FTIR spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 101:228-232. [PMID: 23099176 DOI: 10.1016/j.saa.2012.09.072] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 09/18/2012] [Accepted: 09/22/2012] [Indexed: 06/01/2023]
Abstract
In this paper, FTIR spectroscopy was applied to compare the serum from leukemia patients with the serum from healthy persons. IR spectra of leukemia patients' serum were similar with IR spectra of healthy persons' serum, and they were all made up of proteins, lipids and nucleic acids, etc. In order to identify leukemia patients' serum and healthy persons' serum, the H1075/H1542, H1045/H1467, H2959/H2931 ratios were measured. The H2959/H2931 ratio had the highest significant difference among these ratios and might be a useful factor for identifying leukemia patients' serum and healthy persons' serum. Furthermore, from curve fitting, the RNA/DNA (A1115/A1028) ratios were observed to be lower in leukemia patients' serum than those in healthy persons' serum. The results indicated FTIR spectroscopic study of serum might be a useful tool in the field of leukemia research and diagnosis.
Collapse
Affiliation(s)
- Daping Sheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, and The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China
| | | | | | | | | | | |
Collapse
|
35
|
Hanifi A, Bi X, Yang X, Kavukcuoglu B, Lin PC, DiCarlo E, Spencer RG, Bostrom MP, Pleshko N. Infrared fiber optic probe evaluation of degenerative cartilage correlates to histological grading. Am J Sports Med 2012; 40:2853-61. [PMID: 23108637 PMCID: PMC4235670 DOI: 10.1177/0363546512462009] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Osteoarthritis (OA), a degenerative cartilage disease, results in alterations of the chemical and structural properties of tissue. Arthroscopic evaluation of full-depth tissue composition is limited and would require tissue harvesting, which is inappropriate in daily routine. Fourier transform infrared (FT-IR) spectroscopy is a modality based on molecular vibrations of matrix components that can be used in conjunction with fiber optics to acquire quantitative compositional data from the cartilage matrix. PURPOSE To develop a model based on infrared spectra of articular cartilage to predict the histological Mankin score as an indicator of tissue quality. STUDY DESIGN Comparative laboratory study. METHODS Infrared fiber optic probe (IFOP) spectra were collected from nearly normal and more degraded regions of tibial plateau articular cartilage harvested during knee arthroplasty (N = 61). Each region was graded using a modified Mankin score. A multivariate partial least squares algorithm using second-derivative spectra was developed to predict the histological modified Mankin score. RESULTS The partial least squares model derived from IFOP spectra predicted the modified Mankin score with a prediction error of approximately 1.4, which resulted in approximately 72% of the Mankin-scored tissues being predicted correctly and 96% being predicted within 1 grade of their true score. CONCLUSION These data demonstrate that IFOP spectral parameters correlate with histological tissue grade and can be used to provide information on tissue composition. CLINICAL RELEVANCE Infrared fiber optic probe studies have significant potential for the evaluation of cartilage tissue quality without the need for tissue harvest. Combined with arthroscopy, IFOP analysis could facilitate the definition of tissue margins in debridement procedures.
Collapse
Affiliation(s)
- Arash Hanifi
- Department of Bioengineering, Temple University, Philadelphia, PA 19122
| | - Xiaohong Bi
- Research Division, Hospital for Special Surgery, New York, NY10021
| | - Xu Yang
- Research Division, Hospital for Special Surgery, New York, NY10021
| | - Beril Kavukcuoglu
- Department of Bioengineering, Temple University, Philadelphia, PA 19122
| | - Ping Chang Lin
- The National Institute on Aging, National Institutes of Health, Baltimore, MD 21224
| | - Edward DiCarlo
- Research Division, Hospital for Special Surgery, New York, NY10021
| | - Richard G. Spencer
- The National Institute on Aging, National Institutes of Health, Baltimore, MD 21224
| | | | - Nancy Pleshko
- Department of Bioengineering, Temple University, Philadelphia, PA 19122
| |
Collapse
|
36
|
Label-free differentiation of human pituitary adenomas by FT-IR spectroscopic imaging. Anal Bioanal Chem 2012; 403:727-35. [DOI: 10.1007/s00216-012-5824-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 01/29/2012] [Accepted: 02/01/2012] [Indexed: 01/13/2023]
|
37
|
Nazeer Shaiju S, Ariya S, Asish R, Salim Haris P, Anita B, Arun Kumar G, Jayasree RS. Habits with killer instincts: in vivo analysis on the severity of oral mucosal alterations using autofluorescence spectroscopy. JOURNAL OF BIOMEDICAL OPTICS 2011; 16:087006. [PMID: 21895333 DOI: 10.1117/1.3608923] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Oral habits like chewing and smoking are main causes of oral cancer, which has a higher mortality rate than many other cancer forms. Currently, the long term survival rate of oral cancer is less than 50%, as a majority of cases are detected very late. The clinician's main challenge is to differentiate among a multitude of red, white, or ulcerated lesions. Hence, new noninvasive, reliable, and fast techniques for the discrimination of oral cavity disorders are to be developed. This study includes autofluorescence spectroscopic screening of normal volunteers with and without lifestyle oral habits and patients with oral submucous fibrosis (OSF). The spectra from different sites of habitués, non-habitués, and OSF patients were analyzed using the intensity ratio, redox ratio, and linear discriminant analysis (LDA). The spectral disparities among these groups are well demonstrated in the emission regions of collagen and Flavin adenine dinucleotide. We observed that LDA gives better efficiency of classification than the intensity ratio technique. Even the differentiation of habitués and non-habitués could be well established with LDA. The study concludes that the clinical application of autofluorescence spectroscopy along with LDA, yields spontaneous screening among individuals, facilitating better patient management for clinicians and better quality of life for patients.
Collapse
Affiliation(s)
- S Nazeer Shaiju
- Sree Chitra Tirunal Institute for Medical Sciences & Technology, Biophotonics and Molecular Imaging Lab, Biomedical Technology Wing, Poojappura, Thiruvananthapuram - 695 012, Kerala, India
| | | | | | | | | | | | | |
Collapse
|
38
|
Khanmohammadi M, Garmarudi AB. Infrared spectroscopy provides a green analytical chemistry tool for direct diagnosis of cancer. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2011.02.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
39
|
Stelling A, Salzer R, Kirsch M, Sobottka SB, Geiger K, Koch E, Schackert G, Steiner G. Intra-operative optical diagnostics with vibrational spectroscopy. Anal Bioanal Chem 2011; 400:2745-53. [DOI: 10.1007/s00216-011-5022-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 04/11/2011] [Accepted: 04/12/2011] [Indexed: 11/25/2022]
|
40
|
Sahu RK, Mordechai S. Spectral signatures of colonic malignancies in the mid-infrared region: from basic research to clinical applicability. Future Oncol 2011; 6:1653-67. [PMID: 21062162 DOI: 10.2217/fon.10.120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The process of carcinogenesis in the colon progresses through several overlapping stages, making the evaluation process challenging, as well as subjective. Owing to the complexity of colonic tissues and the search for a technique that is rapid and foolproof for precise grading and evaluation of biopsies, many spectroscopic techniques have been evaluated in the past few decades for their efficiency and clinical compatibility. Fourier-transform infrared spectroscopy, being quantitative and objective, has the capacity for automation and relevance to cancer diagnosis. This article highlights investigations on the application of Fourier-transform infrared spectroscopy (particularly microscopy) in colon cancer diagnosis and parallel developments in data analysis techniques for the characterization of spectral signatures of malignant tissues in the colon.
Collapse
Affiliation(s)
- Ranjit K Sahu
- Center for Autoimmune & Musculoskeletal Disease, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | | |
Collapse
|
41
|
Lipid and Membrane Dynamics in Biological Tissues—Infrared Spectroscopic Studies. ADVANCES IN PLANAR LIPID BILAYERS AND LIPOSOMES 2011. [DOI: 10.1016/b978-0-12-387721-5.00001-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|