Advertisement

Topics

PubMed Journal Database | Journal of colloid and interface science RSS

10:30 EST 22nd January 2019 | BioPortfolio

The US National Library of Medicine and National Institutes of Health manage PubMed.gov which comprises of more than 29 million records, papers, reports for biomedical literature, including MEDLINE, life science and medical journals, articles, reviews, reports and  books.

BioPortfolio aims to cross reference relevant information on published papers, clinical trials and news associated with selected topics - speciality.

For example view all recent relevant publications on Epigenetics and associated publications and clincial trials.

Showing PubMed Articles 1–25 of 2,600+ from Journal of colloid and interface science

Contact-line fluctuations and dynamic wetting.

The thermal fluctuations of the three-phase contact line formed between a liquid and a solid at equilibrium can be used to determine key parameters that control dynamic wetting.

Modifying internal organization and surface morphology of siRNA lipoplexes by sodium alginate addition for efficient siRNA delivery.

Vectorized small interfering RNAs (siRNAs) are widely used to induce specific mRNA degradation in the intracellular compartment of eukaryotic cells. Recently, we developed efficient cationic lipid-based siRNA vectors (siRNA lipoplexes or siLex) containing sodium alginate (Nalg-siLex) with superior efficiency and stability properties than siLex. In this study, we assessed the physicochemical and some biological properties of Nalg-siLex compared to siLex. While no significant differences in size, ζ potential...

Prussian blue-encapsulated FeO nanoparticles for reusable photothermal sterilization of water.

Waterborne health issues continue to grow despite the large number of available solutions. Current sterilization techniques to fight with waterborne diseases struggle to meet the demands on cost, efficiency and reach. Effective alternatives are pressingly required. Here we introduce Prussian blue coated ferroferric oxide (FeO@PB) composites for water sterilization. The composites exhibit superior photothermal inactivation of bacteria under solar-light irradiation, with nearly complete inactivation of bacter...

Preparation and evaluation of fluorescent poly(p-phenyleneethylene) covalently coated microspheres with reactive sites for bioconjugation.

Fluorescent microspheres with reactive sites for interacting with biomolecules are greatly demanded in flow cytometry based suspension array. Aiming to develop a new method for preparing fluorescent microspheres, two poly(p-phenyleneethylene) (PPE) conjugated polymers (CPs) with pedant carboxylic groups were synthesized via Sonogashira coupling and followed with hydrolysis of ester groups; then the conjugated polymers were immobilized onto monodispersed amino-modified porous poly(glycidylmethacrylate) (APGM...

Fabrication of 3-D confined spaces with Au NPs: Superior dispersion and catalytic activity.

Gold nanoparticles (Au NPs) as an active noble-metal site have received great attention because of its superior catalytic activity in diverse reactions. However, the activity of Au NPs is strongly dependent on its size and dispersion degree. Therefore, we developed an efficient solid-state reduction (SSR) strategy for the first time to promote the dispersion degree and size of Au NPs in template-occluded KIT-6 (AK) as a support by taking advantage of (i) 3-dimentonal cubic mesoporous structure of support (i...

Tuning roughness features of thin film composite polyamide membranes for simultaneously enhanced permeability, selectivity and anti-fouling performance.

Thin film composite (TFC) polyamide membranes set the golden standard for reverse osmosis technology, but tuning their permeability and selectivity remains a major challenge because of the inherent permeability-selectivity trade-off. Creating nano-sized voids within the polyamide rejection layer can tune the membrane roughness and increase its effective filtration area to improve the water permeability. Here we prepare nano-foamed polyamide rejection layers by adding sodium bicarbonate into the aqueous solu...

Design of "turn-ON and turn-OFF" fluorescence switching based photonic logic gates through multiple input-output models by MoS quantum dots.

We demonstrate Boolean logic gates like behavior of Molybdenum disulfide quantum dots (MoS QDs) based on "turn-ON" and "turn-OFF" fluorescence switching response upon the addition of various biomolecules, carbon based materials and other organic molecules as inputs. The logic gates are constructed through single input single output (SISO), double inputs single output (DISO) and single input double outputs (SIDO) models. The fluorescence enhancement/"turn-ON" response of MoS QDs is observed in the presence o...

Uniform PdCu coated Te nanowires as efficient catalysts for electrooxidation of ethylene glycol.

The renewable alcohol oxidation reaction is critical to conversion and storage of clean energy, but the design and construction of highly efficient catalysts for boosting the electrooxidation reaction, remains a grand challenge. Here, we propose a facile approach for the large-scale generation of uniform PdCuTe nanowires (NWs) by using Te NWs as the template. Impressively, as a robust integrated one-dimensional (1D) anode catalyst, the as-obtained PdCuTe NWs shows high specific/mass activity of 7.9 mA c...

Surface roughness regulation of reduced-graphene oxide/iodine - Based electrodes and their application in polymer solar cells.

The current work presents an iodine-mediated fine-tuning method for the electrical and electrochemical properties of reduced-graphene oxide (r-GO)/iodine - based electrodes for application in ITO-free polymer solar cells (PSCs). A multi-technique investigation was applied to correlate the morphological features of GO thin films (GO TFs) with iodine adsorption during the reduction process by HI vapor, electrochemical band gap, Fermi potential, charge carrier mobility and charge density of iodine/r-GO based e...

Nitrogen-containing activated carbon of improved electrochemical performance derived from cotton stalks using indirect chemical activation.

Highly porous (specific surface area, S, 1400 m/g) and rich in surface groups activated carbons (ACs) were obtained from cotton stalks using either a direct or indirect activation. They were characterized by adsorption of nitrogen, thermal analysis combined with mass spectrometry, potentiometric titration, and X-ray photoelectron spectroscopy (XPS). XPS analysis indicated that the indirect activation led to more nitrogen on the surface incorporated as pyridinic and graphitic/quaternary species. These spec...

Guanidyl-functionalized graphene/polysulfone mixed matrix ultrafiltration membrane with superior permselective, antifouling and antibacterial properties for water treatment.

Mixed matrix membranes blended with graphene-based nanomaterials have great potential in water and wastewater treatment on account of their multiple functionalities. To solve the complicated biofouling problem and diversify the applications of membranes, novel synergistic antibacterial guanidyl-functionalized graphene/polysulfone (GFG/PSF) mixed matrix ultrafiltration membranes were prepared by a non-solvent induced phase separation method. The guanidyl-functionalized graphene nanosheets were achieved by a ...

Nickel-cobalt selenide as high-performance and long-life electrode material for supercapacitor.

In this work, a series of NiCoSe selenides are prepared with x ranging from 0 to 1 and investigated as electrode materials for supercapacitor. The sample NiCoSe shows 1580 and 1205 F g at 1 and 20 A g, respectively. At 10 A g, 90% capacitance retention is sustained after 20,000 cycles. A NiCoSe-based asymmetric supercapacitor (ASC) is assembled and exhibits energy density of 44.1 and 36.8 Wh kg at power density of 691.3 and 15070.6 W kg and long stability. Systematic physicochemical/elec...

Highly stable hole-conductor-free perovskite solar cells based upon ammonium chloride and a carbon electrode.

Organic-inorganic hybrid perovskite solar cells (PSCs) have become a research hotspot due to the impressive photovoltaic performance. The perovskite film plays an extremely important role in the light-to-electricity conversion, meanwhile, the stability of PSCs is also an important factor affecting the application of devices. Here we demonstrate a kind of stable PSCs by using simple solution-process in an air enviroment with about 45% relative humidity. Firstly, the NHCl was added to the perovskite precursor...

Synthesis, characterization, and environmental behaviors of monodispersed platinum nanoparticles.

The release of platinum group elements, including platinum nanoparticles (PtNPs), has been increasing over recent decades. However, few studies have investigated the fate, behavior and effects of PtNPs in environmental media. Here, we report a protocol for the synthesis of five different sizes (8.5 ± 1.2, 10.3 ± 1.3, 20.0 ± 4.8, 40.5 ± 4.1, and 70.8 ± 4.2 nm) of monodispersed citrate- and polyvinylpyrrolidone (PVP)-coated PtNPs, together with a characterization of their behaviors ...

Clay-based superamphiphobic coatings with low sliding angles for viscous liquids.

Although significant attention has been paid, most of superamphiphobic surfaces suffer from high sliding angles (SA) for liquids with low surface tension and complicated preparation methods. Also, superamphiphobic coatings with high repellency to the liquids with very high viscosity and low surface tension are rare. Here, we report preparation of clay-based superamphiphobic coatings with low SAs for viscous liquids. A homogeneous suspension was prepared by hydrolytic condensation of 1H,1H,2H,2H-perfluorodec...

Constructing high-efficiency photocatalyst for degrading ciprofloxacin: Three-dimensional visible light driven graphene based NiAlFe LDH.

A three-dimensional (3D) graphene based photocatalyst, consisting of Fe(III)-doped NiAl layered double hydroxide (NiAlFe LDH), was prepared via a simple one-step hydrothermal approach for the first time. The growth of NiAlFe LDH nanoplates and the reduction of graphene oxide were accomplished simultaneously during hydrothermal process without adding toxic reductant and toxic solvent. No complex and time-consuming preparation steps were needed. The structural characterization shows that NiAlFe LDH nanoplates...

Multi-walled carbon nanotubes reinforced interpenetrating polymer network with ultrafast self-healing and anti-icing attributes.

Fabrication of polymeric nanocomposites with suitable nanomaterial via an in-situ polymerization approach results in multifunctional advanced materials.

Robust yet self-healing antifogging/antibacterial dual-functional composite films by a simple one-pot strategy.

Dual-functional films with both antifogging and antibacterial properties have a wide range of applications on the surface of transparent materials. However, few studies have been reported so far about such dual-functional films. In this work, we developed self-healing poly(vinyl alcohol)/poly(acrylic acid)/Ag (polymer-Ag) composite films simultaneously with antifogging and antibacterial properties via a simple one-pot strategy. The antifogging property is attributed to sufficient hydroxyl groups of polymer....

Ternary Z-scheme heterojunction of BiWO with reduced graphene oxide (rGO) and meso-tetra (4-carboxyphenyl) porphyrin (TCPP) for enhanced visible-light photocatalysis.

A highly efficient and new ternary TCPP/rGO/BiWO Z-scheme heterojunction was designed and fabricated via a facile hydrothermal approach and a liquid ultrasonic route in sequence. The crystal structures, morphologies, microstructures, chemical compositions, elemental states, optical and photo-electrochemical properties of the heterojunction were characterized. This Z-scheme TCPP/rGO/BiWO photocatalyst has significantly enhanced photocatalytic activity for the tetracycline (TC) degradation under the irradiati...

Dual-targeting nanoparticles with core-crosslinked and pH/redox-bioresponsive properties for enhanced intracellular drug delivery.

Multifunctional nanoparticles (NPs) with high blood-stability, tumor-targeting ability, and stimuli-bioresponsive drug release behaviors are urgently demanded. Herein, folic acid (FA) and galactose (GAL) functionalized, core-crosslinked NPs (CC NPs) with dual-targeting and pH/redox-bioresponsive properties were developed based on amphiphilic FA-poly(6-O-methacryloyl-d-galactopyranose)-b-poly[2-(diisopropylamino) ethyl methacrylate-co-pyridyl disulfide methylacrylate] [FA-PMAgGP-b-P(DPA-co-PDEMA), termed as ...

Fabrication of superhydrophobic coatings with self-cleaning properties on cotton fabric based on Octa vinyl polyhedral oligomeric silsesquioxane/polydimethylsiloxane (OV-POSS/PDMS) nanocomposite.

Wetting behavior of solid surfaces plays an important role in various industrials and even daily life applications. Controlling the surface wettability through fabricating strongly hydrophilic or hydrophobic properties is achieved by tailoring surface topography and chemical composition. Polyhedral oligomeric silsesquioxanes (POSSs) are a class of hybrid materials with the possibility of hydrophobicity enhancement through simultaneous increase in surface roughness and reduction of surface energy.

Hierarchically porous and heteroatom self-doped graphitic biomass carbon for supercapacitors.

Here we report a simple, low-cost and environment friendly method, in which Black locust seed dregs and potassium ferrate (KFeO) are used as starting raw materials and activation agent. The hierarchically porous carbons (BDPC) with high special surface area and abundant mesopores (S = 2010.1 m g and V = 1.457 cm g) are obtained through hydrothermal treatment and chemical activation. The BDPC electrode exhibits excellent electrochemical performances by virtue of unique architecture and hetero...

Visible light photocatalytic mineralization of bisphenol A by carbon and oxygen dual-doped graphitic carbon nitride.

A facile thermal polymerization was applied to synthesize carbon and oxygen dual-doped graphitic carbon nitride (MACN) with controllable electronic band structure using malonic acid and urea as precursors. The C and O atoms substituted the sp N atom in graphitic carbon nitride (CN). The 1MACN (1 represented that the weight ratio of malonic acid to urea is 1% during the synthesis) with optimal band structure could decompose 15 ppm bisphenol A (BPA) within 150 min, and the mineralization rate reached to 5...

The superior photocatalytic activity of Nb doped TiO/g-CN direct Z-scheme system for efficient conversion of CO into valuable fuels.

In this study, we firstly aimed to use Nb as dopant to dope into the TiO lattice in order to narrow band gap energy or enhance photocatalytic activity of the Nb-TiO. Then, the prepared Nb-TiO was combined with g-CN to establish Nb-TiO/g-CN direct Z-scheme system for superior reduction of CO into valuable fuels even under visible light. The obtained results indicated that the band gap energy of the Nb-TiO (2.91 eV) was lower than that of the TiO (3.2 eV). In the successfully established Nb-TiO/g-CN direc...

Facile green synthesis of organosilica nanoparticles by a generic "salt route".

Colloidal silica has wide applications and the global demand of specialty silica is continually increasing. Therefore, it is significant to develop a synthetic method that is simple, versatile, energy-saving, ecologically benign, and easily scalable. Biomimetic synthesis of colloidal silica represents a promising strategy; however, it often requires the synthesis or extraction of specialized macromolecules. In this paper, we present a novel aqueous, one-pot, and green route for synthesis of organosilica nan...


Advertisement
Quick Search
Advertisement
Advertisement