Preparation of titanium dioxide nanoparticles modified with methacrylate and their electrophoretic properties

Abstract

Titanium dioxide nanoparticles (NPs) were modified by alkyl methacrylate (alkyl = methyl, butyl, ethylhexyl, lauryl and octadecyl) through graft copolymerization at its surface, respectively. The characteristics of these products were analysed by Fourier transform infrared, thermogravimetric analysis and transmission electron microscopy. The average particle size, zeta potential and electrophoretic mobility of modified NPs were tested in Isopar dispersion system and the water contact angle was also measured. The average particle size of NPs decreased; zeta potential, hydrophobicity and the dispersion stability enhanced with the increase of alkyl chain length. The maximum values of the zeta potential of NPs modified by poly(octadecyl methacrylate) (PSMA/TiO 2 ) electrophoretic particles reached -72.64 mV. The obtained NPs associated with carbon black were employed to prepare the display inks. An electrophoretic display prototype device based on the white-black inks was prepared. The results gave that the device based on NPs treated with poly(lauryl methacrylate) (PLMA/TiO 2 ) presented 357 ms of quick response under an applied 5 V (DC) field.

Blue nanocomposites coated with an ionic liquid polymer for electrophoretic displays

“…Compared with SCAs, the surface zeta and mobility value of PIL/SCAs were obviously improved, and these probably beneted from the ionic liquid polymer on the surface. In the fabricated prototypes with a thickness of 0.2 mm, the response time of the PIL/SCAs is 167 ms. For the modied titania particles reported previously 20,21 and commercial EPDs with a close response distance, the response times were all greater than 260 ms, which was much Fig. 9 The N 2 adsorption-desorption isotherms (A), and the pore size distribution curves (B) of the silica nanoparticles.…”

“…An inorganic pigment coated with polymer is another option for reducing its apparent density, which in addition favors the improvement of the dispersion stability. [10][11][12] At the moment, polymers are mostly coated onto the surface of particles through weak physical interaction, which leads to a swelling problem and affects their lifetime badly. Meanwhile, general polymer coatings always offer poor surface charge performance and show a low responding speed in electric elds.…”

Manipulating Local Chemistry of Phosphorus for High-Performance Sodium Ion Battery Anode Applications

“…The spectra of P, TiO 2 , and C source materials are also shown for comparison. Few features are observed in the IR spectra taken from either P or C, while a broad peak for TiO 2 appears at ∼500–800 cm –1 . , In the P–TiO 2 –C composite, despite the peak at ∼500 cm –1 for the modified TiO 2 , peaks at ∼1160 and 1005 cm –1 show up, which can be ascribed to the P–O/P–C , and Ti–O–P/Ti–O–C ,− bonds, respectively.…”

“…Few features are observed in the IR spectra taken from either P or C, while a broad peak for TiO 2 appears at ∼500−800 cm −1 . 63,64 In the P−TiO 2 −C composite, despite the peak at ∼500 cm −1 for the modified TiO 2 , peaks at ∼1160 The electrochemical performance of the P−TiO 2 −C composites anode has been evaluated by assembling them into coin cells with sodium as both the reference and counter electrode. Figure 4a shows the cyclic voltammetry (CV) profile of the P−TiO 2 −C composites.…”

A Novel Prostate-Specific Membrane-Antigen (PSMA) Targeted Micelle-Encapsulating Wogonin Inhibits Prostate Cancer Cell Proliferation via Inducing Intrinsic Apoptotic Pathway

“…Moreover, some protein drugs, such as anti-PSMA mAbs, single-chain variable fragment (scFv) and soluble receptors have been used to target PCa [ 28 , 29 , 30 , 31 ]. For example, Indium-111 radio-labeled anti-PSMA mAb (mAb 7E11) has been approved by Food and Drug Administration (FDA) for the radiographic test of PCa [ 30 , 32 , 33 , 34 , 35 , 36 ] Some mAbs-conjugated immunotoxins or nanoparticles as PCa-targeted agents have been tested in clinical trials [ 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 ].…”