Here we introduce the electromagnetic shielding effectiveness (SE) of reduced graphene oxide (RGO) sheets interleaved between polyetherimide (PEI) films fabricated by electrophoretic deposition (EPD). Incorporating only 0.66 vol % RGO, developed PEI/RGO composite exhibited an interference (EMI SE) at 6.37 dB corresponding to ∼50% incident waves. Excellent flexibility and optical transparency up 62% visible light was demonstrated. It achieved placing RGO in localized area as a thin film (ca....

Various functional materials, such as metal nanoparticles, carbon nanotubes and conducting polymers were coated on polymer microspheres finding various uses in electronic biomedical applications. Herein, we demonstrate that single graphene oxide (GO) sheets could be easily wrapped amine-functionalized poly(glycidyl methacrylate) (PGMA-ed) (∼2.5 μm diameter) to form a PGMA-ed/GO core-shell structure with thickness of ca. 50 nm. Subsequently, the synthesized GO-skin consolidated by heating...

A large-area, conductive, and flexible membrane made from the stabilized aqueous solution of reduced graphene oxide (RGO) is successfully fabricated using an electrophoretic deposition (EPD) method. low-voltage operation EPD (∼3 volts) allows a robust consolidation RGO layers desirably aligned in in-plane direction through cohesive squeezing force near current collector. Transferring deposited to arbitrary substrates or achieving as free-standing form, two methods "chemical etching"...

Lactic acid bacteria (LAB) are the common probiotics. Here, we investigated antiviral protective effects of heat-killed LAB strain Lactobacillus casei DK128 (DK128) on influenza viruses. Intranasal treatment mice with conferred protection against different subtypes viruses by lessening weight loss and lowering viral loads. Protection via was correlated an increase in alveolar macrophage cells lungs airways, early induction virus specific antibodies, reduced levels pro-inflammatory cytokines...

Abstract Janus colloids with one attractive patch on an otherwise repulsive particle surface serve as model systems to explore structure formation of particles chemically heterogeneous surfaces such proteins. While there are numerous computer studies, few experimental realizations due a lack means produce well-controlled variable balance. Here, we report simple scalable method precisely vary the balance over wide range and selectively functionalize DNA. We observe, via experiment simulation,...

A new synthesis route of a solution-processed highly conductive self-standing graphite membrane from reassembled graphene oxide (GO) has become one the intensive research focus, because its immense application opportunities. Previously demonstrated techniques were limited by unstable reduced (RGO) dispersion and agglomeration during chemical reduction without any surfactant. This results in poor packing morphology low electrical conductivity RGO membrane. Here, we report novel concentrated...

We demonstrate a method to create high-density DNA coatings on colloidal particles that can be used for DNA-mediated self-assembly of single- and multiple-component crystals. First, we modify an amphiphilic diblock copolymer consisting hydrophobic polystyrene (PS) block hydrophilic poly(ethylene oxide) (PEO) with azide functional groups at the end (poly(ethylene oxide)-N3). Then, introduce copolymers into aqueous suspension polymer swollen solvent. The PS anchoring is incorporated spheres...

Significance Powerful new approaches to assemble colloidal particles have emerged over the past decade, including introduction of shape complementarity and heterogeneous patchy colloid surfaces. While proteins use both simultaneously, achieving this for colloids has proven difficult. Here, we introduce a scalable method synthesize solid with localized faceted DNA patches different symmetries. Our synthetic approach starts liquid droplets coated DNA, which is then organized on droplets,...

Although the graphene-based materials have a great potential to be used for various energy storage devices, expected performance of graphene has not been achieved yet seemingly due lack interconnected porosity and actively-exposed surface area that should developed in re-stacked electrodes. Herein we an electrophoretic deposition (EPD) method fabricate binder-free porous supercapacitor electrode composed reduced oxide (RGO) sheets conductive carbon black (CB) particles. Applying EPD...

A transparent dielectric elastomer actuator driven by few-layer-graphene (FLG) electrode was experimentally investigated. The electrodes were made of graphene, which dispersed in N-methyl-pyrrolidone. fabricated from developed FLG electrodes. with its sheet resistance 0.45 kΩ/sq (80 nm thick) implemented to mask silicone elastomer. FLG-driven exhibited an optical transparency over 57% at a wavenumber 600 and produced bending displacement performance ranging 29 946 μm as functions frequency...

A simple yet versatile solution-based process to produce colloidal silica hexapods is developed in which various shapes of rods are grown on the faces cubes a controlled manner. In presence hematite cubic particles, water droplets nucleate surface by phase separation pentanol. By adjusting concentration, six can form each face cube. precursor then administered into system, gradually diffuses through oil phase. Within droplets, hydrolysis and condensation precursors take place, leading...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics and mechanism of extraction zinc nickel with substituted diphenylthiocarbazonesJoon S. Oh Henry. FreiserCite this: Anal. Chem. 1967, 39, 3, 295–298Publication Date (Print):March 1, 1967Publication History Published online1 May 2002Published inissue 1 March 1967https://pubs.acs.org/doi/10.1021/ac60247a007https://doi.org/10.1021/ac60247a007research-articleACS PublicationsRequest reuse permissionsArticle Views90Altmetric-Citations27LEARN...

DNA is a unique molecule for storing information, which used to provide particular biological instructions. Its function primarily determined by the sequence of its four nucleobases, have highly specific base-pairing interactions. This feature can be applied direct self-assembly colloids grafting onto them. Due sequence-specific interactions, programmed with multiple Here, we show that particles having strands different melting profiles undergo phase transitions and reassemble into...

Coating colloidal particles with DNA provides one of the most versatile and powerful methods for controlling self-assembly. Previous studies have shown how combining coatings strand displacement allows to design phase transitions between different three-dimensional crystal structures. Here we show that by using bifunctional Janus particles, can realize reconfigurable thermally reversible one- two-dimensional self-assembled We introduce a system in which DNA-coated asymmetric reversibly...

The patterning of graphene has gained a great deal attention for practical applications such as electrical devices and sensors. Here we introduce facile, versatile, direct method the fabrication electrically conductive patterns on flexible plastic substrate based laser transmission welding technique. One distinctive features developed technique is that both transferring processes take place simultaneously with simple treatment. Selective absorption localized melting by laser-induced heat...

RuO₂/carbon powder electrodes have been designed to be enclosed in a supercapacitor cell and compressed under constant pressure (4.84 kg_f cm⁻²), which could overcome binder failure repeated volumetric changes.

Polyglycidyl methacrylate (PGMA) microspheres, crosslinked and surface-functionalized by amine, can be used as a solid-state template for the synthesis of gold (Au) crystals in forms either nanoparticles (NPs) or plates. It is discovered that polymer microsphere acts an internal to cultivate Au NPs inside external generate single-crystal plates depending on critical concentration (Ccr ) ions. The ion-dipole interaction structure-dependent solubility induce two distinct nanostructures...

A high molecular-weight thermoplastic lignin-based polymer was successfully synthesized by adjusting the degree of polymerization while inducing linear growth lignin macromers via methylene diphenyldiisocyanate. The lignin-urethane desirably achieved in a narrow range reaction conditions 2.5 to 3.5 h at 80 oC this study, and molecular weight resulting polyurethanes (LigPU) reached as 912,000 g/mole, which is far above any reported values derivatives. thermal stability LigPU greatly improved...

We describe a general procedure for the large-scale fabrication of bowl-shaped colloidal particles using an emulsion templating technique.

We present a novel method for regulating the shell thickness of core–shell microspheres consisting polymer core and graphene oxide or reduced shell.