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Chang H, Ohno PE, Liu Y, Lozier EH, Dalchand N, Geiger FM. Direct Measurement of Charge Reversal on Lipid Bilayers Using Heterodyne-Detected Second Harmonic Generation Spectroscopy. J Phys Chem B 2020; 124:641-649. [DOI: 10.1021/acs.jpcb.9b09341] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- HanByul Chang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60660, United States
| | - Paul E. Ohno
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60660, United States
| | - Yangdongling Liu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60660, United States
| | - Emilie H. Lozier
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60660, United States
| | - Naomi Dalchand
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60660, United States
| | - Franz M. Geiger
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60660, United States
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2
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Fearon AD, Stokes GY. Thermodynamics of Indomethacin Adsorption to Phospholipid Membranes. J Phys Chem B 2017; 121:10508-10518. [PMID: 29064244 DOI: 10.1021/acs.jpcb.7b08359] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Using second-harmonic generation, we directly monitored adsorption of indomethacin, a nonsteroidal anti-inflammatory drug, to supported lipid bilayers composed of phospholipids of varying phase, cholesterol content, and head group charge without the use of extrinsic labels at therapeutically relevant aqueous concentrations. Indomethacin adsorbed to gel-phase lipids with a high binding affinity, suggesting that like other arylacetic acid-containing drugs, it preferentially interacts with ordered lipid domains. We discovered that adsorption of indomethacin to gel-phase phospholipids was endothermic and entropically driven, whereas adsorption to fluid-phase phospholipids was exothermic and enthalpically driven. As temperature increased from 19 to 34 °C, binding affinities to gel-phase lipids increased by 7-fold but relative surface concentration decreased to one-fifth of the original value. We also compared our results to the entropies reported for indomethacin adsorbed to surfactant micelles, which are used in drug delivery systems, and assert that adsorbed water molecules in the phospholipid bilayer may be buried deeper into the acyl chains and less accessible for disruption. The thermodynamic studies reported here provide mechanistic insight into indomethacin interactions with mammalian plasma membranes in the gastrointestinal tract and inform studies of drug delivery, where indomethacin is commonly used as a prototypical, hydrophobic small-molecule drug.
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Affiliation(s)
- Amanda D Fearon
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
| | - Grace Y Stokes
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
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3
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Suzuki Y, Nojima Y, Yamaguchi S. Vibrational Coupling at the Topmost Surface of Water Revealed by Heterodyne-Detected Sum Frequency Generation Spectroscopy. J Phys Chem Lett 2017; 8:1396-1401. [PMID: 28294626 DOI: 10.1021/acs.jpclett.7b00312] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Unraveling vibrational coupling is the key to consistently interpret vibrational spectra of complex molecular systems. The vibrational spectrum of the water surface heavily suffers from vibrational coupling, which hinders complete understanding of the molecular structure and dynamics of the water surface. Here we apply heterodyne-detected sum frequency generation spectroscopy to the water surface and accomplish the assignment of a weak vibrational band located at the lower energy side of the free OH stretch. We find that this band is due to a combination mode of the hydrogen-bonded OH stretch and a low-frequency intermolecular vibration, and this combination band appears in the surface vibrational spectrum through anharmonic vibrational coupling that takes place exclusively at the topmost surface.
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Affiliation(s)
- Yudai Suzuki
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University , 255 Shimo-Okubo, Sakura, Saitama 338-8570, Japan
| | - Yuki Nojima
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University , 255 Shimo-Okubo, Sakura, Saitama 338-8570, Japan
| | - Shoichi Yamaguchi
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University , 255 Shimo-Okubo, Sakura, Saitama 338-8570, Japan
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4
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Calkins AL, Yin J, Rangel JL, Landry MR, Fuller AA, Stokes GY. A Thermodynamic Description of the Adsorption of Simple Water-Soluble Peptoids to Silica. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11690-11697. [PMID: 27756123 DOI: 10.1021/acs.langmuir.6b02804] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The first report of a water-soluble peptoid adsorbed to silica monitored by second harmonic generation (SHG) at the liquid/solid interface is presented here. The molecular insights gained from these studies will inform the design and preparation of novel peptoid coatings. Simple 6- and 15-residue peptoids were dissolved in phosphate buffered saline and adsorbed to bare silica surfaces. Equilibrium binding constants and relative surface concentrations of adsorbed peptoids were determined from fits to the Langmuir model. Complementary fluorescence spectroscopy studies were used to quantify the maximum surface excess. Binding constants, determined here by SHG, were comparable to those previously reported for cationic proteins and small molecules. Enthalpies and free energies of adsorption were determined to elucidate thermodynamic driving forces. Circular dichroism spectra confirm that minimal conformational changes occur when peptoids are adsorbed to silica while pH studies indicate that electrostatic interactions impact adsorption.
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Affiliation(s)
- Anna L Calkins
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
| | - Jennifer Yin
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
| | - Jacenda L Rangel
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
| | - Madeleine R Landry
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
| | - Amelia A Fuller
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
| | - Grace Y Stokes
- Department of Chemistry and Biochemistry, Santa Clara University , 500 El Camino Real, Santa Clara, California 95053, United States
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Williams TA, Lee J, Diemler CA, Subir M. Magnetic vs. non-magnetic colloids – A comparative adsorption study to quantify the effect of dye-induced aggregation on the binding affinity of an organic dye. J Colloid Interface Sci 2016; 481:20-7. [DOI: 10.1016/j.jcis.2016.07.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/15/2016] [Accepted: 07/17/2016] [Indexed: 11/28/2022]
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6
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Jacobson KH, Gunsolus IL, Kuech TR, Troiano JM, Melby ES, Lohse SE, Hu D, Chrisler WB, Murphy CJ, Orr G, Geiger FM, Haynes CL, Pedersen JA. Lipopolysaccharide Density and Structure Govern the Extent and Distance of Nanoparticle Interaction with Actual and Model Bacterial Outer Membranes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:10642-10650. [PMID: 26207769 PMCID: PMC4643684 DOI: 10.1021/acs.est.5b01841] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Design of nanomedicines and nanoparticle-based antimicrobial and antifouling formulations and assessment of the potential implications of nanoparticle release into the environment requires understanding nanoparticle interaction with bacterial surfaces. Here we demonstrate the electrostatically driven association of functionalized nanoparticles with lipopolysaccharides of Gram-negative bacterial outer membranes and find that lipopolysaccharide structure influences the extent and location of binding relative to the outer leaflet-solution interface. By manipulating the lipopolysaccharide content in Shewanella oneidensis outer membranes, we observed the electrostatically driven interaction of cationic gold nanoparticles with the lipopolysaccharide-containing leaflet. We probed this interaction by quartz crystal microbalance with dissipation monitoring (QCM-D) and second harmonic generation (SHG) using solid-supported lipopolysaccharide-containing bilayers. The association of cationic nanoparticles increased with lipopolysaccharide content, while no association of anionic nanoparticles was observed. The harmonic-dependence of QCM-D measurements suggested that a population of the cationic nanoparticles was held at a distance from the outer leaflet-solution interface of bilayers containing smooth lipopolysaccharides (those bearing a long O-polysaccharide). Additionally, smooth lipopolysaccharides held the bulk of the associated cationic particles outside of the interfacial zone probed by SHG. Our results demonstrate that positively charged nanoparticles are more likely to interact with Gram-negative bacteria than are negatively charged particles, and this interaction occurs primarily through lipopolysaccharides.
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Affiliation(s)
- Kurt H. Jacobson
- Department of Civil and Environmental Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Ian L. Gunsolus
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Thomas R. Kuech
- Environmental Chemistry and Technology Program, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Julianne M. Troiano
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Eric S. Melby
- Environmental Chemistry and Technology Program, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Samuel E. Lohse
- Department of Chemistry, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, United States
| | - Dehong Hu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - William B. Chrisler
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Catherine J. Murphy
- Department of Chemistry, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801, United States
| | - Galya Orr
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Franz M. Geiger
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Corresponding Authors: Phone: 608-263-4971; . Phone: 612-626-1096,
| | - Joel A. Pedersen
- Department of Civil and Environmental Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
- Environmental Chemistry and Technology Program, University of Wisconsin, Madison, Wisconsin 53706, United States
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
- Corresponding Authors: Phone: 608-263-4971; . Phone: 612-626-1096,
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Ebben CJ, Shrestha M, Martinez IS, Corrigan AL, Frossard AA, Song WW, Worton DR, Petäjä T, Williams J, Russell LM, Kulmala M, Goldstein AH, Artaxo P, Martin ST, Thomson RJ, Geiger FM. Organic constituents on the surfaces of aerosol particles from Southern Finland, Amazonia, and California studied by vibrational sum frequency generation. J Phys Chem A 2012; 116:8271-90. [PMID: 22734593 DOI: 10.1021/jp302631z] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This article summarizes and compares the analysis of the surfaces of natural aerosol particles from three different forest environments by vibrational sum frequency generation. The experiments were carried out directly on filter and impactor substrates, without the need for sample preconcentration, manipulation, or destruction. We discuss the important first steps leading to secondary organic aerosol (SOA) particle nucleation and growth from terpene oxidation by showing that, as viewed by coherent vibrational spectroscopy, the chemical composition of the surface region of aerosol particles having sizes of 1 μm and lower appears to be close to size-invariant. We also discuss the concept of molecular chirality as a chemical marker that could be useful for quantifying how chemical constituents in the SOA gas phase and the SOA particle phase are related in time. Finally, we describe how the combination of multiple disciplines, such as aerosol science, advanced vibrational spectroscopy, meteorology, and chemistry can be highly informative when studying particles collected during atmospheric chemistry field campaigns, such as those carried out during HUMPPA-COPEC-2010, AMAZE-08, or BEARPEX-2009, and when they are compared to results from synthetic model systems such as particles from the Harvard Environmental Chamber (HEC). Discussions regarding the future of SOA chemical analysis approaches are given in the context of providing a path toward detailed spectroscopic assignments of SOA particle precursors and constituents and to fast-forward, in terms of mechanistic studies, through the SOA particle formation process.
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Affiliation(s)
- Carlena J Ebben
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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8
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Jena KC, Covert PA, Hore DK. Phase measurement in nondegenerate three-wave mixing spectroscopy. J Chem Phys 2011; 134:044712. [DOI: 10.1063/1.3548840] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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9
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Walsh MA, Walter SR, Bevan KH, Geiger FM, Hersam MC. Phenylacetylene One-Dimensional Nanostructures on the Si(100)-2 × 1:H Surface. J Am Chem Soc 2010; 132:3013-9. [DOI: 10.1021/ja909139n] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Michael A. Walsh
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, and Centre for the Physics of Materials and Department of Physics, McGill University, Montreal, PQ, H3A 2T8, Canada
| | - Stephanie R. Walter
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, and Centre for the Physics of Materials and Department of Physics, McGill University, Montreal, PQ, H3A 2T8, Canada
| | - Kirk H. Bevan
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, and Centre for the Physics of Materials and Department of Physics, McGill University, Montreal, PQ, H3A 2T8, Canada
| | - Franz M. Geiger
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, and Centre for the Physics of Materials and Department of Physics, McGill University, Montreal, PQ, H3A 2T8, Canada
| | - Mark C. Hersam
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, and Centre for the Physics of Materials and Department of Physics, McGill University, Montreal, PQ, H3A 2T8, Canada
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10
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Jena KC, Hore DK. Water structure at solid surfaces and its implications for biomolecule adsorption. Phys Chem Chem Phys 2010; 12:14383-404. [DOI: 10.1039/c0cp00260g] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Geiger FM. Second Harmonic Generation, Sum Frequency Generation, and χ(3): Dissecting Environmental Interfaces with a Nonlinear Optical Swiss Army Knife. Annu Rev Phys Chem 2009; 60:61-83. [DOI: 10.1146/annurev.physchem.59.032607.093651] [Citation(s) in RCA: 234] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Franz M. Geiger
- Department of Chemistry, International Institute for Nanotechnology, and Institute for Catalysis in Energy Processes, Northwestern University, Evanston, Illinois 60208;
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12
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Boman FC, Gibbs-Davis JM, Heckman LM, Stepp BR, Nguyen ST, Geiger FM. DNA at aqueous/solid interfaces: chirality-based detection via second harmonic generation activity. J Am Chem Soc 2009; 131:844-8. [PMID: 19140801 DOI: 10.1021/ja808007b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We present electronic spectra of single-strand and duplex DNA oligonucleotides covalently attached to fused quartz/aqueous interfaces and demonstrate that a strong nonlinear optical linear dichroism response is obtained when adenine and thymine bases undergo Watson-Crick base pairing to form a double helix. Complementary chi(3) charge screening studies indicate that the signal originates from 5 x 10(11) strands per square centimeter, or 6 attomoles of surface-bound oligonucleotides. The label-free, molecular-specific nature afforded by nonlinear optical studies of DNA at aqueous/solid interfaces allows for the real-time tracking of interfacial DNA hybridization for the first time.
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Affiliation(s)
- Faith C Boman
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
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13
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Hayes PL, Chen EH, Achtyl JL, Geiger FM. An Optical Voltmeter for Studying Cetyltrimethylammonium Interacting with Fused Silica/Aqueous Interfaces at High Ionic Strength. J Phys Chem A 2009; 113:4269-80. [DOI: 10.1021/jp810891v] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Patrick L. Hayes
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Ehow H. Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Jennifer L. Achtyl
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Franz M. Geiger
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
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14
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Hayes PL, Malin JN, Konek CT, Geiger FM. Interaction of Nitrate, Barium, Strontium and Cadmium Ions with Fused Quartz/Water Interfaces Studied by Second Harmonic Generation. J Phys Chem A 2008; 112:660-8. [DOI: 10.1021/jp076976g] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Patrick L. Hayes
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Jessica N. Malin
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Christopher T. Konek
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Franz M. Geiger
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
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15
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Gulino A, Lupo F, Condorelli GG, Fragalà ME, Amato ME, Scarlata G. Reversible photoswitching of stimuli-responsive Si(100) surfaces engineered with an assembled 1-cyano-1-phenyl-2-[4′-(10-undecenyloxy)phenyl]-ethylene monolayer. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b809037h] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Mifflin AL, Konek CT, Geiger FM. Tracking Oxytetracyline Mobility Across Environmental Interfaces by Second Harmonic Generation. J Phys Chem B 2006; 110:22577-85. [PMID: 17092004 DOI: 10.1021/jp063089p] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work examines the binding behavior of the antibiotic oxytetracycline (OTC) to mineral oxide/water interfaces in the presence and absence of organic functional groups using the interface-specific technique second harmonic generation (SHG). Studies show that OTC binding to fused quartz, methyl ester, carboxylic acid, and alkyl interfaces is fully reversible and highly dependent on solution pH, with appreciable adsorption occurring only at pH 8. Relative surface coverage at pH 8 is highest for the polar organic-functionalized surfaces, and surface saturation occurs for the methyl ester-functionalized fused quartz/water interface at 2 x 10(-5) M. Adsorption isotherm measurements indicate that the binding process is controlled by hydrogen bonding and hydrophobic interactions, with free energies of adsorption on the order of -40 kJ/mol for all interfaces studied. The results indicate that OTC transport in the environment will depend heavily on soil pH and composition and have implications for the development of bacterial antibiotic resistance.
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Affiliation(s)
- Amanda L Mifflin
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
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17
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Laser Literature Watch. Photomed Laser Surg 2006; 24:222-48. [PMID: 16706704 DOI: 10.1089/pho.2006.24.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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