Dendronized oligoethylene glycols with phosphonate <i>tweezers</i> for cell-repellent coating of oxide surfaces: coarse-scale and nanoscopic interfacial forces

Czajor, Julian; Abuillan, Wasim; Nguyen, Dinh-Vu; Heidebrecht, Christopher; Mondarte, Evan Angelo Quimada; Konovalov, Oleg; Hayashi, T.; Felder‐Flesch, Delphine; Kaufmann, Stefan; Tanaka, Motomu

doi:10.1039/d1ra02571f

Cited by 3 publications

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“…Previously, we applied this model to calculate Young's moduli of dendronized oligoethylene glycol monolayers and determined how the number and length of branches affected the film elasticity. 50 However, this approach was not used in the present study because the experimental system consists of five distinct layers: the (i) Si wafer, (ii) ODTMS monolayer, (iii) phospholipid monolayer, (iv) pAA-Cys5 brush layer, and (v) electrolyte. Within the framework of this model, the sharpness of the transition at each interface is approximated by using an empirical parameter.…”

Section: Resultsmentioning

confidence: 99%

Ion-specific nanoscale compaction of cysteine-modified poly(acrylic acid) brushes revealed by 3D scanning force microscopy with frequency modulation detection

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Ion-specific nanoscale compaction of cysteine-modified poly(acrylic acid) brushes revealed by 3D scanning force microscopy with frequency modulation detection

et al. 2022

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“…Force-separation measurement using AFM enables us to measure the thickness of polymeric materials by pressing the probe tip into the polymer matrix. (11)(12)(13)(14)(15) By this approach, we attempt to acquire a cross-sectional view of the silica/polymer interface by mapping the force-separation curves. On this basis, we attempt to visualize the distribution of the polymer matrix around the silica particles for the first time.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Polymerized Layer of Alkylsilane on Surfaces of Silica Filler Materials by Force Spectroscopic Measurements Using Atomic Force Microscope

Arai¹,

Hayashi²

2022

Sensors and Materials

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We demonstrated the characterization of silica filler materials by force spectroscopic measurements using an atomic force microscope. Our measurement revealed the local thickness distribution of a film of polymerized alkylsilane around silica colloids at nanometer resolution. In addition, our method enabled us to monitor the changes in the thickness distribution after chemical treatment of the materials. These findings cannot be obtained with other popular surface analytical techniques such as X-ray photoelectron spectroscopy and scanning electron microscopy. Our analytical approach is expected to contribute to the evaluation of local distributions of polymeric materials and nanoparticles and to the design of new filler materials in the future.

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Quinquevalent phosphorus acids

Bałczewski,

Owsianik

2024

Organophosphorus Chemistry

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This chapter shows, as in previous years, the most important achievements of the 2021 year in the area of organo-phosphorus compounds containing: three P–O bonds (Section 2: phosphoric acids and their derivatives), two P–O and one P–C bonds (Section 3: phosphonic acids and their derivatives) as well as one P–O and two P–C bonds (Section 4: phosphinic acids and their derivatives), in addition to the phosphoryl group P═O, present in all three groups of compounds. Each of the main sections covers “synthesis and reactions” including pure synthesis without applications, “synthesis and biological applications” and “synthesis and miscellaneous applications” including synthesis directed towards non-biological applications. At the end of each subsection, the corresponding achievements are shown for hetero-analogues in which phosphorus–oxygen bonds have been replaced by phosphorus–heteroatom P–X and/or P═Y bonds (X, Y = N, S or Se). The subsection on quinquevalent phosphorus acids and their derivatives as catalysts has been placed, as usual, at the end of the entire chapter, after a review of all three main groups of compounds. As in previous years, the area devoted to phosphoric and phosphonic acids and their derivatives dominated over a smaller section of phosphinic acids and their derivatives, and literature references for these sections remained at a ratio of 4 : 12 : 1. A dynamic, five-fold increase in the number of works, in the subject of chiral phosphoric acids as catalysts, has been recorded in this year.

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Dendronized oligoethylene glycols with phosphonate tweezers for cell-repellent coating of oxide surfaces: coarse-scale and nanoscopic interfacial forces

Abstract: Coarse-scale and nanoscopic interfacial force measurements unraveled how dendronized oligoethylene glycols with phosphonate tweezers prevent non-specific cell adhesion to oxide surfaces.

Cited by 3 publications

References 44 publications

Ion-specific nanoscale compaction of cysteine-modified poly(acrylic acid) brushes revealed by 3D scanning force microscopy with frequency modulation detection

Ion-specific nanoscale compaction of cysteine-modified poly(acrylic acid) brushes revealed by 3D scanning force microscopy with frequency modulation detection

Characterization of Polymerized Layer of Alkylsilane on Surfaces of Silica Filler Materials by Force Spectroscopic Measurements Using Atomic Force Microscope

Quinquevalent phosphorus acids

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