2025
Unique Complex Structure and Mechanism of Physisorption of Defect-Free Cyclic Poly(ethylene glycol) onto Gold Nanoparticles
Watanabe T, Yamasaki M, Nakai T, Pottammal B, Maruyama Y, Iwase H, Ryoki A, Gao T, Li F, Isono T, Tajima K, Satoh T, Sato S, Yamamoto T. Unique Complex Structure and Mechanism of Physisorption of Defect-Free Cyclic Poly(ethylene glycol) onto Gold Nanoparticles. Langmuir 2025, 41: 13993-14007. PMID: 40420393, DOI: 10.1021/acs.langmuir.5c00930.Peer-Reviewed Original ResearchSmall-angle neutron scatteringNuclear magnetic resonanceCyclic poly(ethylene glycolMolecular dynamicsGold nanoparticlesValues of free energy of adsorptionSurface functionalization of gold nanoparticlesPoly(ethylene glycolFree energy of adsorptionFunctionalization of gold nanoparticlesHO-PEG-OHHS-PEG-OMeSmall-angle neutron scattering dataEnergy of adsorptionWater moleculesSurface of AuNPsMD simulationsGold surfaceUnique structurePhysisorptionSurface functionalizationNeutron scatteringAdsorption densityFavorable adsorptionMechanism of physisorption
2024
A Resilient Platform for the Discrete Functionalization of Gold Surfaces Based on N‑Heterocyclic Carbene Self-Assembled Monolayers
Palasz J, Long Z, Meng J, Videla P, Kelly H, Lian T, Batista V, Kubiak C. A Resilient Platform for the Discrete Functionalization of Gold Surfaces Based on N‑Heterocyclic Carbene Self-Assembled Monolayers. Journal Of The American Chemical Society 2024, 146: 10489-10497. PMID: 38584354, DOI: 10.1021/jacs.3c14113.Peer-Reviewed Original ResearchN-heterocyclic carbeneSelf-assembled monolayersCalculations of vibrational spectraAu(I) complexesLigand exchange reactionFunctionalization of gold surfacesX-ray photoelectron spectroscopyDensity functional theoryExperimental spectroscopic signaturesSurface-enhanced Raman spectroscopyVibrational spectraBinding geometryFunctional theoryBinding modePhotoelectron spectroscopyExchange reactionGold surfaceOn-surfaceSpectroscopic signaturesRaman spectroscopyX-rayAmbient conditionsCarbeneSpectroscopyAcid-base
2022
Sub-Nanometer Mapping of the Interfacial Electric Field Profile Using a Vibrational Stark Shift Ruler
Bhattacharyya D, Videla P, Palasz J, Tangen I, Meng J, Kubiak C, Batista V, Lian T. Sub-Nanometer Mapping of the Interfacial Electric Field Profile Using a Vibrational Stark Shift Ruler. Journal Of The American Chemical Society 2022, 144: 14330-14338. PMID: 35905473, DOI: 10.1021/jacs.2c05563.Peer-Reviewed Original ResearchConceptsSelf-assembled monolayersElectrode surfaceElectrode/electrolyte interfaceDensity functional theory simulationsDouble layerStern layer thicknessElectrical double layerInterfacial electric fieldElectric double layerMolecular electrocatalystsGold surfaceElectrolyte interfaceIsocyanide groupElectric field profileElectrochemical conditionsElectrochemical processesVibrational reporterElectrolyte penetrationElectrode interfaceElectrolyte environmentSpectroscopic methodsElectric field strengthReaction mechanismW centerCatalytic rate
2021
Surface-tethered planar membranes containing the β-barrel assembly machinery: a platform for investigating bacterial outer membrane protein folding
Hall S, Clifton L, Sridhar P, Hardy D, Wotherspoon P, Wright J, Whitehouse J, Gamage N, Laxton C, Hatton C, Hughes G, Jeeves M, Knowles T. Surface-tethered planar membranes containing the β-barrel assembly machinery: a platform for investigating bacterial outer membrane protein folding. Biophysical Journal 2021, 120: 5295-5308. PMID: 34757080, PMCID: PMC8715194, DOI: 10.1016/j.bpj.2021.10.033.Peer-Reviewed Original ResearchConceptsOuter membrane proteinsBAM complexOuter membraneInserts outer membrane proteinsOuter membrane protein functionsOuter membrane protein foldingOuter membrane of Gram-negative bacteriaMembrane of Gram-negative bacteriaMembrane protein foldingQuartz crystal microbalanceSelf-assembled monolayersGram-negative bacteriaPhospholipid bilayer environmentAssembly machineryProtein foldingCrystal microbalanceMembrane proteinsGold surfaceStructural characterizationBiological functionsPolarized neutron reflectometryDissipation monitoringBilayer environmentComplex foldingProtein
2016
Orientation of Cyano-Substituted Bipyridine Re(I) fac-Tricarbonyl Electrocatalysts Bound to Conducting Au Surfaces
Clark M, Rudshteyn B, Ge A, Chabolla S, Machan C, Psciuk B, Song J, Canzi G, Lian T, Batista V, Kubiak C. Orientation of Cyano-Substituted Bipyridine Re(I) fac-Tricarbonyl Electrocatalysts Bound to Conducting Au Surfaces. The Journal Of Physical Chemistry C 2016, 120: 1657-1665. DOI: 10.1021/acs.jpcc.5b10912.Peer-Reviewed Original ResearchSum frequency generation spectroscopyGold surfaceAu surfaceCO2 reduction catalystsFrequency generation spectroscopyReduction of CO2Density functional theoryMolecular catalystsReduction catalystBipyridine ligandsElectrochemical experimentsGeneration spectroscopyCatalytic turnoverSFG spectraElectrocatalystsFunctional theoryCatalystWeak bindingTheoretical methodsSurfaceBipyridineCatalysisSpectroscopyLigandsTriply
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