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Two liquids wetting and low hysteresis electrowetting on dielectric applications.
Adsorption of submicrometer-sized cationic sterically stabilized polystyrene latex at the air-water interface: contact angle determination b...
Near-monodisperse, sterically stabilized cationic polystyrene latexes of either 122 or 310 nm diameter were prepared by aqueous emulsion polymerization using cheap, readily available reagents. At low pH, these latexes stabilized foams prepared by either hand-shaking or by using a foam column. SEM st...
Electron transfer through a self-assembled monolayer of a double-helix peptide with linking the terminals by ferrocene.
We propose that in the double-helix monolayer, molecular motions are suppressed, possibly by its rigid structure tethered by the two linkers on gold to cancel out acceleration effects of the 2-fold electron pathways and the ferrocene substitution number. The factors that affect the electron-transfer...
Identification and passivation of defects in self-assembled monolayers.
We demonstrate imaging of nanoscale defects in self-assembled monolayers (SAMs). Atomic layer deposition of aluminum oxide (AlO(x)) onto hydrophobic SAMs is followed by imaging using scanning electron microscopy (SEM). The insulating AlO(x) selectively deposits onto the exposed substrate at defect s...
A study of simultaneous patterning and alignment of semiconductor nanorods via polymerization-induced phase separation.
We report simultaneous patterning and alignment of semiconductor nanorods (NRs) in nanorod-polymer films by using photolithographic polymerization-induced phase separation (PIPS). Exposure of the nanoparticle-monomer mixture to UV irradiation through a mask resulted in the site-specific photoinitiat...
Interfacial Self-Assembled Fabrication of Petal-Like CdS/Dodecylamine Hybrids toward Enhanced Photoluminescence
We report a new available strategy for fabricating 2-dimensional petal-like CdS/dodecylamine (DDA) hybrids with enhanced photoluminescence (PL) by using a method of oil/water interfacial self-assembly. First, water-soluble CdS nanocrystals (NCs) were controllably prepared at the two-phase interface...
Langmuir Monolayer and Langmuir-Blodgett Films Formed by a Melamine-Headed Azobenzene-Derived Amphiphile: Interfacial Assembly Affected by H...
A novel azobenzene-derived amphiphile with a melamine head, 2Azo-2C(12)H(25)-melamine, has been synthesized. pi-A isotherm measurements displayed that this amphiphile is able to form a stable Langmuir monolayer on both pure water and barbituric acid (BA)- or thymine (T)-containing su...
Photochemical Formation of Silver Nanodecahedra: Structural Selection by the Excitation Wavelength.
Silver decahedra have been successfully synthesized with high yield via a photochemical reaction using blue light-emitting diodes (LEDs) as the exciting light source. The decahedra display distinct properties with respect to the ability of light scattering. The photochemical growth p...
Synthesis and Characterization of Poly(N-isopropylacrylamide)/Silica Composite Microspheres via Inverse Pickering Suspension Polymerization.
In this paper, stable poly (N-isopropylacrylamide)/silica composite microspheres are successfully synthesized via inverse Pickering suspension polymerization using various sizes of silica particles as stabilizers. The droplets of N-isopropylacrylamide aqueous solution were first disp...
Microbubbles Coated with Disaturated Lipids and DSPE-PEG2000: Phase Behavior, Collapse Transitions, and Permeability.
We found that film microstructure and collapse behavior for all chain lengths (n = 14-20) was indicative of primarily condensed phase monolayers, unlike similar coatings containing polyethyleneglycol 40 stearate (PEG40S) that are either expanded phase or coexisting expanded-condensed phase monolayer...