Sol gel synthesis of 3-n-propyl(4-aminomethyl)pyridinium silsesquioxane chloride and the enhanced electrocatalytic activity of LbL films

Antibacterial and Cytotoxic Activities of Copper-Functionalized Silsesquioxane 3-n-Propylpyridinium Chloride

“…The 13 C and 29 S NMR spectral data confirmed the chemical structure of SiPy + Cland its functionalization with cooper.…”

“…Those 13 C chemical shifts are summarized in Table 1. A downfield, broad line and noise effects were highlighted as another collective signature of the 13 C chemical shifts of Cu-SiPy + Clsample. Those effects were generated by the proximity of electronegative atoms in the bonding network.…”

“…The silsesquioxane compound known as SiPy + Clwas prepared by the sol-gel processing method [5]. In brief, the synthesis consisted of the acid prehydrolysis of tetraethyl orthosilicate (Sigma-Aldrich, St. Louis, MO, USA) in water-ethanol solution followed by the incorporation of the pyridinium organic group (pyridine anhydrous, 99.8% pure, Sigma-Aldrich, St. Louis, MO, USA) according to the procedure previously described in the literature [12,13]. All reagents were analytical grade with no further purification.…”

“…For structural elucidation, solid state 13 C and 29 Si NMR experiments were performed on a Bruker 400 MHz spectrometer (Bremen, Germany) using a standard Magic Angle Spinning (MAS) probe 4 mm at room temperature. The strong static magnetic field is B0 = 9.4 T and the corresponding resonant frequencies for 29 Si, 13 C, and 1 H were 79.488 MHz, 100.625 MHz, and 400.132 MHz, respectively. The SiPy + Cland Cu-SiPy + Clsamples were placed on zirconia rotors and were spun at 13 kHz.…”

Oxygen Vacancy Injection on (111) CeO2 Nanocrystal Facets for Efficient H2O2 Detection

“…Before the formal filming process, the FTO substrates were cleaned with following the previous reports [ 31 , 32 , 33 ]. CeO 2 -assembled FTO electrodes were prepared through electrophoretic deposition.…”