Zwitterionic poly(2-(methacryloyloxy) ethyl phosphorylcholine) coated mesoporous silica particles and doping with magnetic nanoparticles

Layer‐by‐layer preparation of electromagnetic NH2‐SiO2/polypyrrole/Ni nanocomposites, characterization and their electrochemical properties

“…The FTIR spectrum of mesoporous H 2 N‐SiO 2 seed particles shown in Fig. 2(Aa) revealed the presence of symmetric and asymmetric stretching vibrations for SiO, SiOH, SiOSi and OSiO groups at around 1088, 970, 781 and 479 cm −1 , respectively 68,69 . NH bending vibration due to primary amine appears at 1640 cm −1 .…”

Impact of mesoporous SiO2 support for Ni/polypyrrole nanocomposite particles on their capacitive performance

“…1Ab) shows the asymmetric vibrations of the Si–O, Si–OH, Si–O–Si and O–Si–O groups at 1087, 970, 796 and 468 cm −1 , respectively. 50,51 The weak signal in the range between 2800 and 2900 cm −1 arises from the aliphatic C–H groups of residual CTAB and bonded HMDA. The broad band at 3000–3700 cm −1 corresponds to the cumulative asymmetric and symmetric stretching vibrations of –NH 2 and –OH groups.…”

“…Preparation of H 2 N-SiO 2 /Ni nanocomposite seed particles H 2 N-SiO 2 /Ni nanocomposite seed particles were prepared by in situ chemical reduction of the Ni precursor in the presence of H 2 N-SiO 2 core particles. 9,49,51 Concisely, Ni precursor salt, Ni(NO 3 ) 2 Á6H 2 O (0.2294 g), was dissolved in 10 mL of EG under stirring and to this H 2 N-SiO 2 particles (0.1 g) were added under mild sonication to form a uniform suspension. EDA (260 mL), a structure directing agent, was added and the resulting mixture taken in a three necked round bottomed flask was placed in an oil bath maintained at 75 1C.…”

Osteoblast Biocompatibility and Antibacterial Effects Using 2-Methacryloyloxyethyl Phosphocholine-Grafted Stainless-Steel Composite for Implant Applications

“…Kyomoto et al [11] demonstrated that the MPC grafted substrate has good anti-adhesion of S. aureus bacteria compared with the untreated sample due to the smooth surface and hydrophilicity of MPC units. The MPC’s zwitterionic nature forms a hydration layer on the surface via hydrogen bonding and electrostatic interaction [45], which may contribute to the strong repulsion to S. aureus bacteria.…”