Total internal reflection spectroscopy for studying soft matter

Woods, David A.; Bain, Colin D.

doi:10.1039/c3sm52817k

Cited by 61 publications

(67 citation statements)

References 212 publications

(270 reference statements)

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“…[27,29]. However, the problem appears when T D const and, in particular, when T 1 is required within a wide range of Â-variation together with sharp switching between T 1 and T D 0.…”

Section: Low-pass Filteringmentioning

confidence: 96%

Single–Band and Multiband Angular Filtering Using Two–Dimensional Photonic Crystals and One–Layer Gratings

Serebryannikov

Özbay

2017

The World of Applied Electromagnetics

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“…[27,29]. However, the problem appears when T D const and, in particular, when T 1 is required within a wide range of Â-variation together with sharp switching between T 1 and T D 0.…”

Section: Low-pass Filteringmentioning

confidence: 96%

Single–Band and Multiband Angular Filtering Using Two–Dimensional Photonic Crystals and One–Layer Gratings

Serebryannikov

Özbay

2017

The World of Applied Electromagnetics

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“…Recent progress in the field has allowed the inclusion of cryo-probes and the development of electron crystallography (used to determine the structure of several proteins allowing the identification, in some cases, of secondary structure motifs) [97, 98]. Other techniques [91] used to support research related to protein adsorption include capillary electrophoresis [99], mass spectrometry [100, 101] and particle mass spectrometry [102] (to identify and quantify proteins through fragmentation), various vibrational spectroscopictechniques [103, 104] (to study protein/substrate interface and elucidate the biosensing mechanism), UV-Vis spectroscopy [105], Fourier-transform infrared (FTIR) spectroscopy[106, 107] (to analyze sequential and competitive adsorption), circular dichroism (CD) spectroscopy[108, 109] (to investigate the secondary structure of adsorbed proteins), isothermal titration calorimetry [110] (to investigate thermodynamic properties of interactions), surface plasmon resonance (SPR)[37, 111-113] (for quantitation of proteins and kinetic studies but limited to gold or silver surfaces), total internal reflection fluorescence spectroscopy [114] (for determining conformational changes in adsorbed proteins), infrared spectroscopy [115] (to observe protein conformation and load but with limited use in multicomponent protein solutions because of complex spectra), and fluorescence spectroscopy[84, 116] (to observe structural change in protein and protein loading).As their interaction with proteins can lead to spectral shifts in gold nanoparticles(AuNP), various colorimetric assays have been presented to monitor either protein-protein interactions [117] or conformational changes [118]. Additionally, it was recently reported that in the low protein coverage regime, nanoparticle tracking analysis, and differential dynamic light scattering (but not differential centrifugal sedimentation)correlate with the expected plasmon frequency shift of AuNP[119].…”

Section: Techniques To Investigate Protein Adsorptionmentioning

confidence: 99%

Protein adsorption onto nanomaterials for the development of biosensors and analytical devices: A review

Bhakta

Evans

Benavidez

et al. 2015

Analytica Chimica Acta

219

116

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An important consideration for the development of biosensors is the adsorption of the bio recognition element to the surface of a substrate. As the first step in the immobilization process, adsorption affects most immobilization routes and much attention is given into the research of this process to maximize the overall activity of the bio sensor. The use of nanomaterials, specifically nanoparticles and nanostructured films, offers advantageous properties that can be fine-tuned for interaction with specific proteins to maximize activity, minimize structural changes, and enhance the catalytic step. In the biosensor field, protein-nanomaterial interactions are an emerging trend that span across many disciplines. This review addresses recent publications about the proteins most frequently used, their most relevant characteristics, and the conditions required to adsorb them to nanomaterials. When relevant and available, subsequent analytical figures of merits are discussed for selected biosensors. The general trend amongst the research papers allows concluding that the use of nanomaterials has already provided significant improvements in the analytical performance of many biosensors and that this research field will continue to grow.

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“…15 Therefore, TIR Raman spectroscopy lacks the intrinsic surface sensitivity of non-linear optical methods such as SFG. 15 Therefore, TIR Raman spectroscopy lacks the intrinsic surface sensitivity of non-linear optical methods such as SFG.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the structure of water at hydrophobic and hydrophilic interfaces by angle-resolved TIR Raman spectroscopy

Ota

2015

Phys. Chem. Chem. Phys.

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To analyse the surface- or interface-specific molecular structure of a condensed molecular system, it is important to measure the spectra of molecules near the surface. Total internal reflection (TIR) Raman spectroscopy is a sensitive technique for surface or interfacial analysis because it retrieves spectra in the region within ca. 100 nm of a surface. However, since the width of the interface itself is often on a molecular scale (one to a few nm), conventional TIR Raman spectroscopy intrinsically lacks surface sensitivity. To overcome this problem, the combination of multiple-angle TIR Raman spectroscopy and principal component analysis (PCA) is expected to enable effective differentiation between the spectra of minute chemical species at the interface and those of dominant species. In the present study, angle-resolved TIR Raman spectroscopy with PCA was applied to SiO2/water and SAM/water interfaces to detect minute species located within a few nm of each interface. This method will likely lead to progress in various surface and interfacial analyses, not only those related to the structure of water, but also those used to determine the interactions among absorbed species.

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Total internal reflection spectroscopy for studying soft matter

Cited by 61 publications

References 212 publications

Single–Band and Multiband Angular Filtering Using Two–Dimensional Photonic Crystals and One–Layer Gratings

Single–Band and Multiband Angular Filtering Using Two–Dimensional Photonic Crystals and One–Layer Gratings

Protein adsorption onto nanomaterials for the development of biosensors and analytical devices: A review

Investigation of the structure of water at hydrophobic and hydrophilic interfaces by angle-resolved TIR Raman spectroscopy

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