Multivalent anchored and crosslinked hyperbranched polyglycerol monolayers as antifouling coating for titanium oxide surfaces

Wei, Qiang; Krysiak, Stefanie; Achazi, Katharina; Becherer, Tobias; Noeske, Michael; Paulus, Florian; Liebe, Hendrik; Grunwald, Ingo; Dernedde, Jens; Hartwig, Andreas; Hugel, Thorsten; Haag, Rainer

doi:10.1016/j.colsurfb.2014.08.001

Cited by 41 publications

(41 citation statements)

References 35 publications

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“…9c) regions when investigating a polished AM50 surface or a laser-treated surface. In detail, the C1 s spectra showed signal contributions centered at 285.0 ± 0.1, 286.2 ± 0.2, 287.8 ± 0.1, 289.2 ± 0.2, and 290.4 ± 0.2 eV which are attributed to hydrocarbonaceous carbon, C*-O, C*= O, and carboxylic or carbonate species, respectively [25][26][27][28]. The C1s spectra revealed the formation of highly oxidized carbon species with binding energies higher than 289 eV, based on a carbon surface concentration around 25 at.%.…”

Section: Characterization Of Coated Am50 Substratesmentioning

confidence: 99%

Implementation of diverse non-centrosymmetric layer concepts for tuning the interface activity of a magnesium alloy

et al. 2016

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Section: Characterization Of Coated Am50 Substratesmentioning

confidence: 99%

Implementation of diverse non-centrosymmetric layer concepts for tuning the interface activity of a magnesium alloy

et al. 2016

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“…With the rapid advance in biocompatible coatings for implants and blood-contacting medical devices, various materials have been developed to resist nonspecific adsorption to avoid complications, such as thrombosis, inflammation, and infection [8]. Adsorption is associated with thermodynamic preference when the net entropy increases and the net enthalpy decreases at an interface in a defined system.…”

Section: Introductionmentioning

confidence: 99%

Bio-inspired multifunctional catecholic assembly for photo-programmable biointerface

Huang

Wang

2015

Colloids and Surfaces B: Biointerfaces

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“…One possible reason for this could be related to the TiO 2 nanoparticles themselves. It is known that catechol derivatives adsorb strongly to the surface of TiO 2 nanoparticles . While previous studies have observed oxidized derivatives, it may be that in this case these aryl‐oxidized products adsorb strongly to the surface of the TiO 2 nanoparticles and upon filtration are removed.…”

Section: Resultsmentioning

confidence: 95%

Understanding the performance of a paper‐based UV exposure sensor: The photodegradation mechanism of brilliant blue FCF in the presence of TiO₂ photocatalysts in both the solid state and solution

Khiabani

Soeriyadi

Nam

et al. 2019

Rapid Comm Mass Spectrometry

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Rationale The decolouration of brilliant blue FCF by the action of titanium dioxide (TiO2) under ultraviolet (UV) exposure has been recently reported as the basis of a paper‐based sensor for monitoring UV sun exposure. The mechanism of brilliant blue FCF photodegradation in the presence of the photocatalyst and the resulting photoproducts are thus far unknown. Methods The UV‐initiated photodegradation of brilliant blue FCF in the presence of TiO2 for both the aqueous and the solid state was investigated. Degradation in the solid state was observed using matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐MS). Decomposition of the dye in the aqueous state was analyzed using liquid chromatography/mass spectrometry (LC/MS) and ultraviolet–visible (UV–Vis) spectroscopy. Results After UV radiation exposure, the brilliant blue FCF base peak [M1 + NH4]+ (m/z calc. 766.194 found 766.194) decreased in the LC/MS chromatogram with a concomitant appearance of BB‐FCF decomposition products involving the sequential loss of the N‐ethyl and N‐methylbenzene sulfonate (MBSA) groups, assigned as [M2 + H]+ (‐MBSA, calc. 579.163 found 579.162), [M3 + H]+ (‐MBSA, −Et, calc. 551.131 found 551.131), [M4 + H]+ (‐2MBSA, calc. 409.158 found 409.158), [M5 + H]+ (‐2MBSA, −Et, calc. 381.127 found 381.127). Ions [M2 + H]+ and [M3 + H]+ were also identified in the photodegradation products using MALDI‐MS. Observation by UV–Vis indicated a decrease in the solution absorbance maxima and an associated blue‐shift upon UV exposure in solution. Conclusions The LC/MS analysis indicated two main oxidation processes. The most obvious was attack of the N‐methylene, eliminating either ethyl or MBSA groups. The presence of the hydroxylated decomposition product M13 ([M13 + H]+, calc. 595.157 found 595.157) supported this assignment. In addition, the detection of photoproduct M8, proposed to be 3‐((ethylamino)methyl)benzenesulfonic acid ([M8 + H]+, calc. 216.069 found 216.069), indicates an aryl‐oxidative elimination. The absence of the aryl‐hydroxy products normally expected to accompany the formation of M8 is proposed to be due to TiO2‐binding catechol‐like derivatives, which are then removed upon filtration.

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Multivalent anchored and crosslinked hyperbranched polyglycerol monolayers as antifouling coating for titanium oxide surfaces

Cited by 41 publications

References 35 publications

Implementation of diverse non-centrosymmetric layer concepts for tuning the interface activity of a magnesium alloy

Implementation of diverse non-centrosymmetric layer concepts for tuning the interface activity of a magnesium alloy

Bio-inspired multifunctional catecholic assembly for photo-programmable biointerface

Understanding the performance of a paper‐based UV exposure sensor: The photodegradation mechanism of brilliant blue FCF in the presence of TiO₂ photocatalysts in both the solid state and solution

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Multivalent anchored and crosslinked hyperbranched polyglycerol monolayers as antifouling coating for titanium oxide surfaces

Cited by 41 publications

References 35 publications

Implementation of diverse non-centrosymmetric layer concepts for tuning the interface activity of a magnesium alloy

Implementation of diverse non-centrosymmetric layer concepts for tuning the interface activity of a magnesium alloy

Bio-inspired multifunctional catecholic assembly for photo-programmable biointerface

Understanding the performance of a paper‐based UV exposure sensor: The photodegradation mechanism of brilliant blue FCF in the presence of TiO2 photocatalysts in both the solid state and solution

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Understanding the performance of a paper‐based UV exposure sensor: The photodegradation mechanism of brilliant blue FCF in the presence of TiO₂ photocatalysts in both the solid state and solution