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Lv HZ, Chen J, Zhao Y, Li Y, Cao SH, Cai WP, Shen L, Lu Y, Li YQ. A novel derivative synchronous fluorescence method for the rapid, non-destructive and intuitive differentiation of denitrifying bacteria. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120587. [PMID: 38520848 DOI: 10.1016/j.jenvman.2024.120587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/30/2024] [Accepted: 03/10/2024] [Indexed: 03/25/2024]
Abstract
It is challenging to differentiate bacteria residing in the same habitat by direct observation. This difficulty impedes the harvest, application and manipulation of functional bacteria in environmental engineering. In this study, we developed a novel method for rapid differentiation of living denitrifying bacteria based on derivative synchronous fluorescence spectroscopy, as exemplified by three heterotrophic nitrification-aerobic denitrification bacteria having the maximum nitrogen removal efficiencies greater than 90%. The intact bacteria and their living surroundings can be analyzed as an integrated target, which eliminates the need for the complex pre-processing of samples. Under the optimal synchronous scanning parameter (Δλ = 40 nm), each bacterium possesses a unique fluorescence spectral structure and the derivative synchronous fluorescence technique can significantly improve the spectral resolution compared to other conventional fluorescence methods, which enables the rapid differentiation of different bacteria through derivative synchronous fluorescence spectra as fast as 2 min per spectrum. Additionally, the derivative synchronous fluorescence technique can extract the spectral signals contributed by bacterial extracellular substances produced in the biological nitrogen removal process. Moreover, the results obtained from our method can reflect the real-time denitrification properties of bacteria in the biological nitrogen removal process of wastewater. All these merits highlight derivative synchronous fluorescence spectroscopy as a promising analytic method in the environmental field.
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Affiliation(s)
- Huang-Zhou Lv
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Jinliang Chen
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, 361005, PR China
| | - Yan Zhao
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China; Technology Center, China Tobacco Fujian Industrial Co., Ltd., Xiamen, 361021, PR China
| | - Yu Li
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, 361005, PR China
| | - Shuo-Hui Cao
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China; Department of Electronic Science, Xiamen University Xiamen, 361005, PR China
| | - Wei-Peng Cai
- Xiamen Municipal Center for Disease Control and Prevention, Xiamen, 361021, PR China
| | - Liang Shen
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, 361005, PR China.
| | - Yinghua Lu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, The Key Laboratory for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, 361005, PR China
| | - Yao-Qun Li
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China.
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Chae SJ, Kim EJ, Chang HC. A novel NADH fluorescence‐based method for identifying and monitoring lactic acid bacteria growths in kimchi. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.14935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- So Jeong Chae
- Department of Food and Nutrition Kimchi Research Center Chosun University 309 Pilmun‐daero, Dong‐gu Gwangju501‐759Korea
| | - Eun Jeong Kim
- Department of Refrigerator RD/ED Home Appliance & Air Solution Company, LG Electronics 170 Seongsanpaechong‐ro, Seongsan‐gu Changwon‐si, Gyeongsangnam‐do Korea
| | - Hae Choon Chang
- Department of Food and Nutrition Kimchi Research Center Chosun University 309 Pilmun‐daero, Dong‐gu Gwangju501‐759Korea
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Kang SM, de Josselin de Jong E, Higham SM, Hope CK, Kim BI. Fluorescence fingerprints of oral bacteria. JOURNAL OF BIOPHOTONICS 2020; 13:e201900190. [PMID: 31654475 DOI: 10.1002/jbio.201900190] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 06/10/2023]
Abstract
The rapid detection and identification of microorganisms is one of the most important factors in many cases of ill health. The purpose of this study was to determine the fluorescence characteristics of seven oral bacteria using emission spectra with the aim of distinguishing between the bacteria, and to compare fluorescence imaging methods for the direct assessment of oral bacteria. Fluorescence images of each bacterium were obtained under a 405-nm light source using a two-filter system. The emissions of all samples were measured with a fluorescence spectrometer. The complete fluorescence data set collected for each sample employed a three-dimensional data cube. The differences in the autofluorescence characteristics of the seven oral bacteria were determined by principal components analysis (PCA). The fluorescence images of the oral bacteria varied with the genus and the filter system. The three-dimensional excitation-emission matrix fluorescence spectra exhibited distinctive fluorescence features associated with intracellular fluorophores. The seven bacteria could be clearly differentiated on the PCA score plot. The findings of this study indicate that oral bacteria can be identified based on their autofluorescence characteristics. Fluorescence spectroscopy coupled with PCA can be used to detect and classify oral bacteria.
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Affiliation(s)
- Si-Mook Kang
- Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Elbert de Josselin de Jong
- Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Department of Health Services Research, University of Liverpool, Liverpool, UK
- Inspektor Research Systems BV, Amsterdam, the Netherlands
| | - Susan M Higham
- Department of Health Services Research, University of Liverpool, Liverpool, UK
| | - Christopher K Hope
- Department of Health Services Research, University of Liverpool, Liverpool, UK
| | - Baek-Il Kim
- Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
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Quintelas C, Ferreira EC, Lopes JA, Sousa C. An Overview of the Evolution of Infrared Spectroscopy Applied to Bacterial Typing. Biotechnol J 2017; 13. [DOI: 10.1002/biot.201700449] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 10/18/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Cristina Quintelas
- Dr. C. Quintelas, Dr. E. C. Ferreira; CEB − Centro de Engenharia Biológica; Universidade do Minho; Braga Portugal
| | - Eugénio C. Ferreira
- Dr. C. Quintelas, Dr. E. C. Ferreira; CEB − Centro de Engenharia Biológica; Universidade do Minho; Braga Portugal
| | - João A. Lopes
- Dr. J. A. Lopes; Research Institute for Medicines (iMed.ULisboa); Faculdade de Farmácia; Universidade de Lisboa; Lisboa Portugal
| | - Clara Sousa
- Dr. C. Sousa; LAQV/REQUIMTE; Departamento de Ciências Químicas Faculdade de Farmácia; Universidade do Porto; Rua Jorge Viterbo Ferreira, 228 4050-313 Porto Portugal
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Silva AS, Quintelas C, Ferreira EC, Lopes JA, Sousa C. Exploiting intrinsic fluorescence spectroscopy to discriminate between Acinetobacter calcoaceticus–Acinetobacter baumannii complex species. RSC Adv 2017. [DOI: 10.1039/c6ra27531a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Spectroscopy for bacterial typing purposes. Instrisinc fluorescence versus FTIR-ATR and MALDI-TOF MS.
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Affiliation(s)
- Ana Sofia Silva
- CEB-Centre of Biological Engineering
- University of Minho
- Braga
- Portugal
| | | | | | - João A. Lopes
- Research Institute for Medicines (iMed.ULisboa)
- Faculdade de Farmácia
- Universidade de Lisboa
- Lisboa
- Portugal
| | - Clara Sousa
- LAQV/REQUIMTE
- Departamento de Ciências Químicas
- Faculdade de Farmácia
- Universidade do Porto
- 4050-313 Porto
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Fiber optics fluorescence fingerprint measurement for aerobic plate count prediction on sliced beef surface. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.11.065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Aremu BR, Babalola OO. Classification and Taxonomy of Vegetable Macergens. Front Microbiol 2015; 6:1361. [PMID: 26640465 PMCID: PMC4661320 DOI: 10.3389/fmicb.2015.01361] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 11/16/2015] [Indexed: 11/24/2022] Open
Abstract
Macergens are bacteria capable of releasing pectic enzymes (pectolytic bacteria). These enzymatic actions result in the separation of plant tissues leading to total plant destruction. This can be attributed to soft rot diseases in vegetables. These macergens primarily belong to the genus Erwinia and to a range of opportunistic pathogens namely: the Xanthomonas spp., Pseudomonas spp., Clostridium spp., Cytophaga spp., and Bacillus spp. They consist of taxa that displayed considerable heterogeneity and intermingled with members of other genera belonging to the Enterobacteriaceae. They have been classified based on phenotypic, chemotaxonomic and genotypic which obviously not necessary in the taxonomy of all bacterial genera for defining bacterial species and describing new ones These taxonomic markers have been used traditionally as a simple technique for identification of bacterial isolates. The most important fields of taxonomy are supposed to be based on clear, reliable and worldwide applicable criteria. Hence, this review clarifies the taxonomy of the macergens to the species level and revealed that their taxonomy is beyond complete. For discovery of additional species, further research with the use modern molecular methods like phylogenomics need to be done. This can precisely define classification of macergens resulting in occasional, but significant changes in previous taxonomic schemes of these macergens.
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Affiliation(s)
- Bukola R. Aremu
- Department of Biological Sciences, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
| | - Olubukola O. Babalola
- Department of Biological Sciences, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Mmabatho, South Africa
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Yoshimura M, Sugiyama J, Tsuta M, Fujita K, Shibata M, Kokawa M, Oshita S, Oto N. Prediction of Aerobic Plate Count on Beef Surface Using Fluorescence Fingerprint. FOOD BIOPROCESS TECH 2013. [DOI: 10.1007/s11947-013-1167-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Torno K, Wright BK, Jones MR, Digman MA, Gratton E, Phillips M. Real-time analysis of metabolic activity within Lactobacillus acidophilus by phasor fluorescence lifetime imaging microscopy of NADH. Curr Microbiol 2012; 66:365-7. [PMID: 23233088 DOI: 10.1007/s00284-012-0285-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Accepted: 11/14/2012] [Indexed: 11/29/2022]
Abstract
Nicotinamide adenine dinucleotide (NADH) is an endogenous fluorescent molecule commonly used as a metabolic biomarker. Fluorescence lifetime imaging microscopy (FLIM) is a method in which the fluorescence decay is measured at each pixel of an image. While the fluorescence spectrum of free and protein-bound NADH is very similar, free and protein-bound NADH display very different decay profiles. Therefore, FLIM can provide a way to distinguish free/bound NADH at the level of single bacteria within biological samples. The phasor technique is a graphical method to analyse the entire image and to produce a histogram of pixels with different decay profile. In this study, NADH fluorescence decay profiles within Lactobacillus acidophilus samples treated using different protocols indicated discernible variations. Clear distinctions between fluorescence decay profiles of NADH in samples of artificially heightened metabolic activity in comparison to those of samples lacking an accessible carbon source were obtained.
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Affiliation(s)
- Keenan Torno
- School of Science and Health, University of Western Sydney, Richmond, NSW, Australia
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Aït-Kaddour A, Boubellouta T, Chevallier I. Development of a portable spectrofluorimeter for measuring the microbial spoilage of minced beef. Meat Sci 2011; 88:675-81. [DOI: 10.1016/j.meatsci.2011.02.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 02/21/2011] [Accepted: 02/22/2011] [Indexed: 12/01/2022]
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Belal T, Romdhane K, Jean-Louis B, Tahar B, Eric D, Françoise L. Optical fiber-based synchronous fluorescence spectroscopy for bacterial discrimination directly from colonies on agar plates. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:133-143. [PMID: 32938122 DOI: 10.1039/c0ay00135j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of experimental conditions for rapid bacterial discrimination using fluorescence spectroscopy fingerprinting is presented. Colonies of Pseudomonas and related reference strains on agar plates were analyzed directly using an optic fiber coupled to a laboratory spectrofluorimeter. Spectra were collected using either classic fluorescence spectroscopy after excitation at 250 nm and 340 nm for aromatic amino acids and nucleic acids (AAA + NA) and nicotinamide adenine dinucleotide (NADH) respectively, or synchronous scanning in the excitation wavelength range 250-500 nm. Factorial discriminant analysis (FDA) showed 100% correct classification at the genus and species level from NADH spectra and 100% correct classification at the genus and species level for λ = 30, 70, 90 and 110 nm (cross-validation). Analysis of variance (ANOVA) confirmed that culture time (48 or 72 h) colony and optic fiber positioning had non-significant impacts on differences between species. The use of optical fiber-fluorescence spectroscopy for bacterial discrimination directly on colonies is fast, simple and reliable. The results are independent of culture growth phase and neither need reagent addition nor prior manual preparation of cells, thus eliminating all risk of human error or contamination during sample work-up.
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Affiliation(s)
- Tourkya Belal
- UPRES 2008.03.0101 Typicité des Produits alimentaires, VetAgro Sup-Campus Agronomique de Clermont, BP 35, 63370, LEMPDES, France.
| | - Karoui Romdhane
- UPRES 2008.03.0101 Typicité des Produits alimentaires, VetAgro Sup-Campus Agronomique de Clermont, BP 35, 63370, LEMPDES, France.
| | - Berdagué Jean-Louis
- UR370 Qualité des Produits Animaux, Equipe Typicité Aromatique et Authentification, INRA Centre de Clermont-Ferrand/Theix, F-63122, Saint-Genès-Champanelle, France
| | - Boubellouta Tahar
- UPRES 2008.03.0101 Typicité des Produits alimentaires, VetAgro Sup-Campus Agronomique de Clermont, BP 35, 63370, LEMPDES, France.
| | - Dufour Eric
- UPRES 2008.03.0101 Typicité des Produits alimentaires, VetAgro Sup-Campus Agronomique de Clermont, BP 35, 63370, LEMPDES, France.
| | - Leriche Françoise
- UPRES 2008.03.0101 Typicité des Produits alimentaires, VetAgro Sup-Campus Agronomique de Clermont, BP 35, 63370, LEMPDES, France.
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Sahar A, Boubellouta T, Dufour É. Synchronous front-face fluorescence spectroscopy as a promising tool for the rapid determination of spoilage bacteria on chicken breast fillet. Food Res Int 2011. [DOI: 10.1016/j.foodres.2010.09.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Karoui R, Blecker C. Fluorescence Spectroscopy Measurement for Quality Assessment of Food Systems—a Review. FOOD BIOPROCESS TECH 2010. [DOI: 10.1007/s11947-010-0370-0] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Sperandio D, Rossignol G, Guerillon J, Connil N, Orange N, Feuilloley MGJ, Merieau A. Cell-associated hemolysis activity in the clinical strain of Pseudomonas fluorescens MFN1032. BMC Microbiol 2010; 10:124. [PMID: 20416103 PMCID: PMC2871272 DOI: 10.1186/1471-2180-10-124] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Accepted: 04/24/2010] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND MFN1032 is a clinical Pseudomonas fluorescens strain able to grow at 37 degrees C. MFN1032 cells induce necrosis and apoptosis in rat glial cells at this temperature. This strain displays secretion-mediated hemolytic activity involving phospholipase C and cyclolipopeptides. Under laboratory conditions, this activity is not expressed at 37 degrees C. This activity is tightly regulated and is subject to phase variation. RESULTS We found that MFN1032 displays a cell-associated hemolytic activity distinct from the secreted hemolytic activity. Cell-associated hemolysis was expressed at 37 degrees C and was only detected in vitro in mid log growth phase in the presence of erythrocytes. We studied the regulation of this activity in the wild-type strain and in a mutant defective in the Gac two-component pathway. GacS/GacA is a negative regulator of this activity. In contrast to the Pseudomonas fluorescens strains PfO-1 and Pf5, whose genomes have been sequenced, the MFN1032 strain has the type III secretion-like genes hrcRST belonging to the hrpU operon. We showed that disruption of this operon abolished cell-associated hemolytic activity. This activity was not detected in P.fluorescens strains carrying similar hrc genes, as for the P. fluorescens psychrotrophic strain MF37. CONCLUSIONS To our knowledge this the first demonstration of cell-associated hemolytic activity of a clinical strain of Pseudomonas fluorescens. Moreover, this activity seems to be related to a functional hrpU operon and is independent of biosurfactant production. Precise link between a functional hrpU operon and cell-associated hemolytic activity remains to be elucidated.
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Affiliation(s)
- Daniel Sperandio
- Laboratory of cold microbiology signals and the microenvironment, LMDF-SME, UPRES EA 4312, University of Rouen, 55 rue Saint Germain, 27000 Evreux, France
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Peix A, Ramírez-Bahena MH, Velázquez E. Historical evolution and current status of the taxonomy of genus Pseudomonas. INFECTION GENETICS AND EVOLUTION 2009; 9:1132-47. [DOI: 10.1016/j.meegid.2009.08.001] [Citation(s) in RCA: 142] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2009] [Revised: 08/02/2009] [Accepted: 08/18/2009] [Indexed: 10/20/2022]
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Shahzad A, Köhler G, Knapp M, Gaubitzer E, Puchinger M, Edetsberger M. Emerging applications of fluorescence spectroscopy in medical microbiology field. J Transl Med 2009; 7:99. [PMID: 19941643 PMCID: PMC2787503 DOI: 10.1186/1479-5876-7-99] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Accepted: 11/26/2009] [Indexed: 12/03/2022] Open
Abstract
There are many diagnostic techniques and methods available for diagnosis of medically important microorganisms like bacteria, viruses, fungi and parasites. But, almost all these techniques and methods have some limitations or inconvenience. Most of these techniques are laborious, time consuming and with chances of false positive or false negative results. It warrants the need of a diagnostic technique which can overcome these limitations and problems. At present, there is emerging trend to use Fluorescence spectroscopy as a diagnostic as well as research tool in many fields of medical sciences. Here, we will critically discuss research studies which propose that Fluorescence spectroscopy may be an excellent diagnostic as well as excellent research tool in medical microbiology field with high sensitivity and specificity.
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Affiliation(s)
- Aamir Shahzad
- Max F, Perutz Laboratories, Department of Structural Biology and Biomolecular Chemistry, University of Vienna, Vienna, Austria.
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