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Sinha RK, Biswas P. Structural elucidation of Levofloxacin and Ciprofloxacin using density functional theory and Raman spectroscopy with inexpensive lab-built setup. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128946] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Bindesri SD, Alhatab DS, Brosseau CL. Development of an electrochemical surface-enhanced Raman spectroscopy (EC-SERS) fabric-based plasmonic sensor for point-of-care diagnostics. Analyst 2018; 143:4128-4135. [DOI: 10.1039/c8an01117f] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A plasmonic fabric-based electrode has been developed for wearable EC-SERS sensing for point-of-care applications.
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3
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Yang L, Gong M, Jiang X, Chen Y, Han X, Song K, Sun X, Zhang Y, Zhao B. SERS investigation and detection of levofloxacin drug molecules on semiconductor TiO2: Charge transfer contribution. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.08.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Baig N, Polisetti S, Morales-Soto N, Dunham SJB, Sweedler JV, Shrout JD, Bohn PW. Label-free molecular imaging of bacterial communities of the opportunistic pathogen Pseudomonas aeruginosa. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2016; 9930:993004. [PMID: 29670306 PMCID: PMC5901720 DOI: 10.1117/12.2236695] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Biofilms, such as those formed by the opportunistic human pathogen Pseudomonas aeruginosa are complex, matrix enclosed, and surface-associated communities of cells. Bacteria that are part of a biofilm community are much more resistant to antibiotics and the host immune response than their free-floating counterparts. P. aeruginosa biofilms are associated with persistent and chronic infections in diseases such as cystic fibrosis and HIV-AIDS. P. aeruginosa synthesizes and secretes signaling molecules such as the Pseudomonas quinolone signal (PQS) which are implicated in quorum sensing (QS), where bacteria regulate gene expression based on population density. Processes such as biofilms formation and virulence are regulated by QS. This manuscript describes the powerful molecular imaging capabilities of confocal Raman microscopy (CRM) and surface enhanced Raman spectroscopy (SERS) in conjunction with multivariate statistical tools such as principal component analysis (PCA) for studying the spatiotemporal distribution of signaling molecules, secondary metabolites and virulence factors in biofilm communities of P. aeruginosa. Our observations reveal that the laboratory strain PAO1C synthesizes and secretes 2-alkyl-4-hydroxyquinoline N-oxides and 2-alkyl-4-hydroxyquinolones in high abundance, while the isogenic acyl homoserine lactone QS-deficient mutant (ΔlasIΔrhlI) strain produces predominantly 2-alkyl-quinolones during biofilm formation. This study underscores the use of CRM, along with traditional biological tools such as genetics, for studying the behavior of microbial communities at the molecular level.
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Affiliation(s)
- Nameera Baig
- Department of Chemistry & Biochemistry and Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Sneha Polisetti
- Department of Chemistry & Biochemistry and Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Nydia Morales-Soto
- Department of Civil and Environmental Engineering and Earth Sciences and Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
- Eck Institute for Global Health, University of Notre Dame, USA
| | - Sage J B Dunham
- Department of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Jonathan V Sweedler
- Department of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Joshua D Shrout
- Department of Civil and Environmental Engineering and Earth Sciences and Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
- Eck Institute for Global Health, University of Notre Dame, USA
| | - Paul W Bohn
- Department of Chemistry & Biochemistry and Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
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5
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Baig NF, Dunham SJB, Morales-Soto N, Shrout JD, Sweedler JV, Bohn PW. Multimodal chemical imaging of molecular messengers in emerging Pseudomonas aeruginosa bacterial communities. Analyst 2015; 140:6544-52. [PMID: 26331158 DOI: 10.1039/c5an01149c] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two label-free molecular imaging techniques, confocal Raman microscopy (CRM) and secondary ion mass spectrometry (SIMS), are combined for in situ characterization of the spatiotemporal distributions of quinolone metabolites and signaling molecules in communities of the pathogenic bacterium Pseudomonas aeruginosa. Dramatic molecular differences are observed between planktonic and biofilm modes of growth for these bacteria. We observe patterned aggregation and a high abundance of N-oxide quinolines in early biofilms and swarm zones of P. aeruginosa, while the concentrations of these secreted components in planktonic cells and agar plate colonies are below CRM and SIMS detection limits. CRM, in conjunction with principal component analysis (PCA) is used to distinguish between the two co-localized isomeric analyte pairs 4-hydroxy-2-heptylquinoline-N-oxide (HQNO)/2-heptyl-3-hydroxyquinolone (PQS) and 4-hydroxy-2-nonylquinoline-N-oxide (NQNO)/2-nonyl-hydroxyquinolone (C9-PQS) based on differences in their vibrational fingerprints, illustrating how the technique can be used to guide tandem-MS and tandem-MS imaging analysis. Because N-oxide quinolines are ubiquitous and expressed early in biofilms, these analytes may be fundamentally important for early biofilm formation and the growth and organization of P. aeruginosa microbial communities. This study underscores the advantages of using multimodal molecular imaging to study complex biological systems.
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Affiliation(s)
- Nameera F Baig
- Department of Chemistry and Biochemistry and Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA.
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6
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Jin R, Song D, Xiong H, Ai L, Ma P, Sun Y. Magnetic core/shell Fe3
O4
/Au nanoparticles for studies of quinolones binding to protein by fluorescence spectroscopy. LUMINESCENCE 2015; 31:499-506. [DOI: 10.1002/bio.2988] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/29/2015] [Accepted: 07/01/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Rui Jin
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Daqian Song
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Huixia Xiong
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Lisha Ai
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Pinyi Ma
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Ying Sun
- College of Chemistry; Jilin University; Changchun People's Republic of China
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7
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Hidi IJ, Jahn M, Weber K, Cialla-May D, Popp J. Droplet based microfluidics: spectroscopic characterization of levofloxacin and its SERS detection. Phys Chem Chem Phys 2015; 17:21236-42. [DOI: 10.1039/c4cp04970e] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The determination of the absorption behavior of levofloxacin (levaquin) on the surface of silver nanoparticles and its determination in aqueous solution by droplet based microfluidics combined with surface enhanced Raman spectroscopy.
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Affiliation(s)
- I. J. Hidi
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
| | - M. Jahn
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
| | - K. Weber
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
| | - D. Cialla-May
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
| | - J. Popp
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
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8
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Lanni EJ, Masyuko R, Driscoll CM, Dunham SJB, Shrout JD, Bohn PW, Sweedler JV. Correlated imaging with C60-SIMS and confocal Raman microscopy: Visualization of cell-scale molecular distributions in bacterial biofilms. Anal Chem 2014; 86:10885-91. [PMID: 25268906 PMCID: PMC4221875 DOI: 10.1021/ac5030914] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 09/30/2014] [Indexed: 01/11/2023]
Abstract
Secondary ion mass spectrometry (SIMS) and confocal Raman microscopy (CRM) are combined to analyze the chemical composition of cultured Pseudomonas aeruginosa biofilms, providing complementary chemical information for multiple analytes within the sample. Precise spatial correlation between SIMS and CRM images is achieved by applying a chemical microdroplet array to the sample surface which is used to navigate the sample, relocate regions of interest, and align image data. CRM is then employed to nondestructively detect broad molecular constituent classes-including proteins, carbohydrates, and, for the first time, quinolone signaling molecules-in Pseudomonas-derived biofilms. Subsequent SIMS imaging at the same location detects quinolone distributions in excellent agreement with the CRM, discerns multiple quinolone species which differ slightly in mass, resolves subtle differences in their distributions, and resolves ambiguous compound assignments from CRM by determining specific molecular identities via in situ tandem MS.
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Affiliation(s)
- Eric J. Lanni
- Department
of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Rachel
N. Masyuko
- Department
of Chemistry and Biochemistry and Department of Chemical and Biomolecular
Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Callan M. Driscoll
- Department
of Civil and Environmental Engineering and Earth Sciences and Department
of Biological Sciences, University of Notre
Dame, Notre Dame, Indiana 46556, United
States
| | - Sage J. B. Dunham
- Department
of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Joshua D. Shrout
- Department
of Civil and Environmental Engineering and Earth Sciences and Department
of Biological Sciences, University of Notre
Dame, Notre Dame, Indiana 46556, United
States
| | - Paul W. Bohn
- Department
of Chemistry and Biochemistry and Department of Chemical and Biomolecular
Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jonathan V. Sweedler
- Department
of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
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9
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Spectroscopic characterization and photoinduced processes of 4-oxoquinoline derivatives. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.09.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Rimarčík J, Punyain K, Lukeš V, Klein E, Dvoranová D, Kelterer AM, Milata V, Lietava J, Brezová V. Theoretical and spectroscopic study of ethyl 1,4-dihydro-4-oxoquinoline-3-carboxylate and its 6-fluoro and 8-nitro derivatives in neutral and radical anion forms. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.02.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Wang Z, Yu X, Pan B, Xing B. Norfloxacin sorption and its thermodynamics on surface-modified carbon nanotubes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:978-984. [PMID: 20030389 DOI: 10.1021/es902775u] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Adsorption on carbon nanotubes (CNTs) may affect the environmental behavior of organic contaminants including antibiotics. In this study, sorption of norfloxacin (NOR) onto graphitized multiwall CNTs (G-CNTs), carboxylated multiwall CNTs (C-CNTs), hydroxylated multiwall CNTs (H-CNTs), and activated carbon (AC) was investigated. All sorption isotherms were highly nonlinear and were fitted well by Freundlich and Polanyi-Manes models. AC showed the highest NOR sorption capacity because of its highest surface area. H-CNTs had much higher NOR sorption than C-CNTs, and the pi-pi electron donor-acceptor (EDA) interactions could explain the distinction between the two types of CNTs. Comparison of sorption coefficients at different pHs indicates that hydrophobic and electrostatic interaction also played major roles in sorption of NOR on CNTs. Furthermore, high sorption capacity and hysteresis of NOR on CNTs were demonstrated in this study, which needs to be considered for predicting environmental risks of CNTs and NOR. The results from thermodynamic analysis show that sorption of NOR on AC and CNTs was thermodynamically favorable and generally endothermic. Sorption site energy analysis illustrates a distribution of sorption energy, consistent with nonlinear isotherms, which indicates the heterogeneous sites on CNTs for NOR adsorption.
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Affiliation(s)
- Zhenyu Wang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
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12
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Limwikrant W, Higashi K, Yamamoto K, Moribe K. Characterization of ofloxacin–oxalic acid complex by PXRD, NMR, and THz spectroscopy. Int J Pharm 2009; 382:50-5. [DOI: 10.1016/j.ijpharm.2009.08.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Accepted: 08/02/2009] [Indexed: 10/20/2022]
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13
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Spectral properties of Eu(III) compound with antibacterial agent ciprofloxacin (cfqH). Crystal structure of [Eu(cfqH)(cfq)(H2O)4]Cl2·4.55H2O. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.01.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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