ChemInform Abstract: A Review of Electrode Materials for Electrochemical Supercapacitors
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Synthesis of Tunable Theranostic Fe3O4@Mesoporous Silica Nanospheres for Biomedical Applications
Tunable theranostic Fe3O4@mesoporous silica nanospheres: Tunable theranostic Fe3O4@mesoporous silica nanospheres for diagnosis and gene therapy have been designed. The tunable delivery doses of imaging probe and gene by Fe3O4@mesoporous silica nanospheres can be realized by the tunable magnetic cores and modification…
Preparation and characterization of microbial biodegradable poly(3‐hydroxybutyrate‐ co ‐4‐hydroxybutyrate)/organoclay nanocomposites
Abstract Novel biodegradable poly(3‐hydroxybutyrate‐ co ‐4‐hydroxybutyrate) [P(3HB‐ co ‐4HB)]/organoclay nanocomposites were prepared via solution casting. Exfoliated nanocomposite structure was confirmed by wide‐angle X‐ray diffraction (WAXD) and transmission electron microscopy (TEM) for the nanocomposites with low…
Thermal Properties and Degradation Behavior of Linear and Branched Poly(L‐lactide)s and Poly(L‐lactide‐co‐glycolide)s
Abstract Poly(lactide)s and poly(lactide‐ co ‐glycolide)s with different number of arms are synthesized from L ‐lactide and glycolide monomers using stannous(II) 2‐ethylhexanoate and alcohols containing 1, 2, 25, and 51 hydroxyl groups. 1‐dodecanol is used to produce the 1‐arm polymer, poly(ethylene glycol) for the 2‐…
Preparation and characterization of PEM-coated alginate microgels for controlled release of protein
In this study, calcium-alginate microgels coated with a polyelectrolyte multilayer (PEM) were fabricated as a controlled-release system. This system was constructed via an electrostatic droplet generation technique followed by a layer-by-layer (LbL) self-assembly technique. The electrostatic droplet generation techniq…
Polymers coalesced from their cyclodextrin inclusion complexes: What can they tell us about the morphology of melt‐crystallized polymers?
Abstract Cyclodextrins (CDs) are cyclic polysaccharides with nano‐size, largely hydrophobic cavities, and exteriors covered with hydrophilic hydroxyl groups, making them water soluble. Threading and filling their cavities with polymer chains produces noncovalently bonded crystalline inclusion compounds (ICs). In this…
Microwave‐Assisted Synthesis of Fluorescent Ag Nanoclusters in Aqueous Solution
Fluorescent Ag nanoclusters are of significant interest because they provide the bridge between atomic and nanoparticle behavior in noble metals. Herein, microwave irradiation was originally used for the synthesis of water-soluble fluorescent Ag nanoclusters. As-prepared Ag nanoclusters present red fluorescence emissi…
Biocompatible Polyurea Dendrimers with pH‐Dependent Fluorescence
Blau: Biokompatible und biologisch abbaubare, wasserlösliche Dendrimere mit Harnstoffgruppen im Inneren und Aminogruppen auf der Außenseite wurden in überkritischem Kohlendioxid synthetisiert (siehe ein Dendrimer der ersten Generation). Diese neue Klasse von Dendrimeren zeigt eine pH-abhängige intrinsische blaue Fluor…
Two Acentric Mononuclear Molecular Complexes with Unusual Magnetic and Ferroelectric Properties
Two acentric, i.e., noncentrosymmetric, mononuclear complexes, Co(5-ATZ)(4)Cl(2), 1, and Cu(5-ATZ)(4)Cl(2), 2, where 5-ATZ is the monodentate 5-amino-1-H-tetrazole ligand, have been prepared and characterized. Both complexes crystallize in the tetragonal system with the P4nc space group, a member of the polar noncentr…
Characterization and low temperature test of the flexibly crosslinked polyurethane copolymer by poly(dimethylsiloxane)
Shape memory polyurethane (SMPU) flexibly crosslinked by a hydrophobic poly(dimethylsiloxane) (PDMS) spacer at its side through allophanate bonding was tested for shape recovery at −30 °C and compared to a linear SMPU. The SMPU was composed of 4,4′-methylenebis(phenylisocyanate) (MDI), poly(tetramethyleneglycol) (PTMG…
Impact of Spacer and Strand Length on Oligonucleotide Conjugation to the Surface of Ligand-Free Laser-Generated Gold Nanoparticles
Gold nanoparticles conjugated to nucleic acids are widely used for biomedical targeting and sensing applications; however, little is known about the conjugation chemistry covering the impact of steric dimension and strand orientation of single-stranded oligonucleotides (ssO) on the conjugation process and binding effi…
ε‐Caprolactone polymerization under air by the biocatalyst: Magnesium 2,6‐di‐tert‐butyl‐4‐methylphenoxide
Abstract This study investigated the synthesis of the biocatalyst, magnesium 2,6‐di‐ tert ‐butyl‐4‐methylphenoxide (Mg(BHT) 2 ) complex, and the ring‐opening polymerization (ROP) of ε‐caprolactone (CL). The complex demonstrates high catalytic activity and controllable of molecular weight for the ROP of CL in tetrahydr…
Quality assessment of recycled and modified LDPE/PP blends
An experimental study was conducted to investigate the morphology, thermal and mechanical properties of recycled polyolefin blends with different prehistory modified with ethylene propylene rubber (ethylene-propylene diene monomer (EPDM)) using the differential scanning calorimetry (DSC), wide angle X-ray scattering,…
Thermal Stability and Optimal Photoinduced Hydrophilicity of Mesoporous TiO2 Thin Films
Using the triblock copolymer Pluronic F127 (EO 106 PO 70 EO 106 ) as the templating agent and Ti(OBu n ) 4 as the titanium source, mesostructured TiO 2 thin films were constructed through the sol–gel and evaporation-induced self-assembly method. The effect of the calcination temperature on the mesostructure and on the…
Generation of a Porous Luminescent Structure Through Ultrasonically Induced Pathways of Silicon Modification
Porous silicon with unique optical properties was formed through an ultrasonication method. This technique allows the one-step formation of silicon with a purposefully variable porous structure, provides for the possibility of patterned surface-selective modification, and forms photoluminescent centers and defect stat…
Oxidation of Magnesia-Supported Pd30Nanoclusters and Catalyzed CO Combustion: Size-Selected Experiments and First-Principles Theory
Experimental and theoretical investigations of the oxidation reaction of CO to form carbon dioxide, catalyzed by size-selected Pd 30 clusters soft-landed on MgO(100), are described. The consequences of pretreatment of the deposited clusters with molecular oxygen, 16 O 2, at a temperature of ∼370 K followed by annealin…
Microwave‐Assisted Aqueous Synthesis of Small‐Sized, Highly Luminescent CdSeS/ZnS Core/Shell Quantum Dots for Live Cell Imaging
Abstract This study develops a reliable aqueous‐phase method for the synthesis of CdSeS/ZnS core/shell QDs employing microwave irradiation technique. Firstly, CdSeS core QDs were produced by heating a precursor solution containing Cd 2+ , 3‐mercaptopropionic acid (MPA) and Na 2 SeSO 3 at 130 °C for 30 min. After purif…
Ceramic Materials - Progress in Modern Ceramics
This text covers ceramic materials from the fundamentals to industrial applications. This includes their impact on the modern technologies, including nano-ceramic, ceramic matrix composites, nanostructured ceramic membranes, porous ceramics, and the sintering theory model of modern ceramics.
NO dissociation on Cu(111) and Cu 2 O(111) surfaces: a density functional theory based study
NO dissociation on Cu(111) and Cu(2)O(111) surfaces is investigated using spin-polarized density functional theory. This is to verify the possibility of using Cu-based catalyst for NO dissociation which is the rate limiting step for the NO(x) reduction process. The dissociation of molecularly adsorbed NO on the surfac…
Lipophilic Silver Nanoparticles and Their Polymeric Entrapment into Targeted‐PEG‐Based Micelles for the Treatment of Glioblastoma
A simple method for the synthesis of lipophilic Ag NPs have been developed. The coated Ag NPs have been entrapped into a FDA-approved and targetable PEG-based polymeric nanoparticles, and this nanocarrier has been conjugated with the peptide chlorotoxin. Uptake experiments have shown a cell-specific recognition of the…