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Synthesis and characterisation of aluminium(iii) and tin(ii) complexes bearing quinoline-based N,N,O-tridentate ligands and their catalysis in the ring-opening polymerisation of ε-caprolactone

Wen-An Ma、Zhong‐Xia Wang2011-01-01Dalton Transactions

The synthesis and catalysis in the ring-opening polymerisation (ROP) of ε-caprolactone (ε-CL) of aluminium(iii) and tin(ii) complexes supported by quinoline-based N,N,O-tridentate ligands are reported. Reaction of 8-{RC(O)CH(2)P(Ph(2)) = N}C(9)H(6)N (R = Bu(t), 2; R = Ph, 3) with AlMe(3) gave [Al(Me(2)){OCR = CHP(Ph(2…

Organometallic Complex Synthesis and Catalysisbiodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysis

CdSe/ZnS quantum dot–Cytochrome c bioconjugates for selective intracellular O2˙− sensing

Da‐Wei Li、Lixia Qin、Yang Li 等 6 位作者2011-01-01Chemical Communications

We demonstrate that the coupling system of negatively capped CdSe/ZnS QDs with an oxidized Cytochrome c (Cyt c) is capable of the fluorescent imaging of a superoxide radical (O(2)˙⁻) with high sensitivity and specificity in living cells, without interference from other Reactive Oxygen Species (ROS) or relevant intrace…

Electrochemical sensors and biosensorsPerovskite Materials and ApplicationsQuantum Dots Synthesis And Properties

Facile synthesis of one dimensional graphene wrapped carbon nanotube composites by chemical vapour deposition

S Aravind、Eswaraiah Varrla、Sundara Ramaprabhu2011-01-01Journal of Materials Chemistry

A unique method for synthesis of graphene wrapped carbon nanotubes was developed by chemical vapor deposition. Raman analyses show that defects have been created during growth which helps in the efficient dispersion of the composites in a variety of solvents. The synergistic combination of 2D graphene and 1D carbon na…

Carbon Nanotubes in CompositesGraphene research and applicationsSupercapacitor Materials and Fabrication

Nematic textures in microfluidic environment

Anupam Sengupta、Uroš Tkalec、Christian Bahr2011-01-01Soft Matter

We study the flow of a nematic liquid crystal through microchannels possessing degenerate planar anchoring conditions on the channel walls. Depending on the channel dimensions and the flow rate, the formation of different textures and topological defect structures is observed and studied using polarizing optical micro…

Liquid Crystal Research AdvancementsPickering emulsions and particle stabilizationElectrowetting and Microfluidic Technologies

Core–shell nanoparticle based SERS from hydrogen adsorbed on a rhodium(111) electrode

Jian‐Feng Li、Jason R. Anema、Yingchao Yu 等 8 位作者2011-01-01Chemical Communications

We present the first in situ surface Raman spectra of hydrogen on rhodium under electrochemical conditions using gold-core rhodium-shell (Au@Rh) nanoparticles for SERS or gold-core silica-shell (Au@SiO(2)) nanoparticles for SHINERS. The advantage of SHINERS lies in the versatility to study single crystal surfaces such…

Gold and Silver Nanoparticles Synthesis and ApplicationsSpectroscopy and Quantum Chemical StudiesCopper-based nanomaterials and applications

Production oF Acti VAt Ed cArBon FroM indu Stri AL BAMBoo WAStES

S. M. A. Mahanim、Ibrahim Wan Asma、J. Rafidah 等 5 位作者2011-01-01JOURNAL OF TROPICAL FOREST SCIENCE

MAHANIM SMA, WAN ASMA I, RAFIDAH J, PUAD E & SHAHARUDDIN H. 2011. Production of activated carbon from industrial bamboo wastes. Activated carbon was produced from bamboo residues using carbonisation and steam activation in a high temperature reactor. Tests were carried out to study the effects of two processing parame…

Concrete and Cement Materials ResearchThermochemical Biomass Conversion ProcessesNatural Fiber Reinforced Composites

Bacterial Carbon Storage to Value Added Products

Christopher J. Brigham、Kazuhiko Kurosawa2011-01-01Journal of Microbial & Biochemical Technology

Microorganisms have evolved different systems for storing carbon during times of stress. In the cell's natural environment, the stored carbon can then be utilized for growth when other nutrients are in better supply. Storage of carbon and other nutrients is ubiquitous throughout the prokaryotic and eukaryotic domains…

Biofuel production and bioconversionbiodegradable polymer synthesis and propertiesMicrobial Metabolic Engineering and Bioproduction

The History of Polyethylene

Mehmet Demirors2011-01-01ACS symposium series

Polyethylene is the largest volume polymer produced globally, with a total over 90 million metric tons per annum. Since its accidental discovery in 1933 it has evolved into a material critical to modern life. The first product commercialized was low density polyethylene (LDPE) based on free radical polymerization. Sho…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Science and PVC

Mn(ii) complexes of novel hexadentate AAZTA-like chelators: a solution thermodynamics and relaxometric study

Lorenzo Tei、Giuseppe Gugliotta、M. Fekete 等 5 位作者2011-01-01Dalton Transactions

Three novel chelators based on the 6-amino-6-methylperhydro-1,4-diazepine scaffold and possessing three pendant N-acetic or N-α-methylacetic acid have been synthesised. The ligands contain six donor atoms for complexation of Mn(II) ions and thus potentially leave an additional site for coordination of a water molecule…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesElectron Spin Resonance Studies

Imidazole-modified porphyrin as a pH-responsive sensitizer for cancer photodynamic therapy

Xianchun Zhu、Wentong Lu、Yazhou Zhang 等 9 位作者2011-01-01Chemical Communications

5,10,15,20-Tetrakis(N-(2-(1H-imidazol-4-yl)ethyl)benzamide)porphyrin produced twice as many singlet oxygen ((1)O(2)) molecules at pH 5.0 (quantum yield 0.53 ± 0.01) than at pH 7.4, whereas the (1)O(2) quenching rate was reduced by a factor of 2.5 for a pH change from 7.4 to 5.0.

Nanoplatforms for cancer theranosticsPorphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research Studies

Self-assembly of a family of macrocyclic polyoxotungstates with emergent material properties

Jing Gao、Jun Yan、Scott G. Mitchell 等 7 位作者2011-01-01Chemical Science

Using a time-dependent synthetic approach, the construction of a new class of macrocyclic tungstotellurite heteropolyacid cluster-squares, [W28Te8O112]24− (1a), [W28Te9O115]26− (2a) and [W28Te10O118]28− (3a) has been achieved. Isolation of these architectures is facilitated by the tellurite anions, which act as templa…

Polyoxometalates: Synthesis and ApplicationsNanocluster Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis

Electrochemical Model of Solid Oxide Fuel Cell for Simulation at the Stack Scale II: Implementation of Degradation Processes

Arata Nakajo、Pietro Tanasini、Stefan Diethelm 等 5 位作者2011-01-01Journal of The Electrochemical Society

The degradation of the electrochemical performance of solid oxide fuel cell (SOFC) devices is a major hurdle to overcome before commercialisation. The interplay between the phenomena and the long testing times complicate the research, which highlights the relevance of modelling to propose mitigation approaches.This st…

Advancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsElectronic and Structural Properties of Oxides

Microporous Carbon-Based Electrical Double Layer Capacitor Operating at High Temperature in Ionic Liquid Electrolyte

Céline Largeot、Pierre‐Louis Taberna、Yury Gogotsi 等 4 位作者2011-01-01Electrochemical and Solid-State Letters

N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14-TFSI) ionic liquid has been used as electrolyte for high temperatures electrochemical capacitor working at 100°C, in combination with microporous Carbide Derived Carbons (CDC). When the carbon pore size is in the same range as the ion size of the…

Advancements in Battery MaterialsSupercapacitor Materials and FabricationConducting polymers and applications

Synergistic effect of Cu2+-coordinated carbon nanotube/graphene network on the electrical and mechanical properties of polymer nanocomposites

Yitao Liu、Ming Dang、Xu‐Ming Xie 等 5 位作者2011-01-01Journal of Materials Chemistry

A novel hybrid nanofiller system, in which oxidized multi-walled carbon nanotubes (MWCNTs) and chemically modified graphene (CMG) are coordinated by copper ions, is fabricated. The CMG sheets are efficiently isolated and bridged by MWCNTs through copper ion coordination to form a uniform network, and the Cu2+-coordina…

Carbon Nanotubes in CompositesGraphene research and applicationsPolymer Nanocomposite Synthesis and Irradiation

Improving Efficiency of Adriamycin Crossing Blood Brain Barrier by Combination of Thermosensitive Liposomes and Hyperthermia

Wei Gong、Zhiyuan Wang、Nan Liu 等 11 位作者2011-01-01Biological and Pharmaceutical Bulletin

Adriamycin (ADM)-encapsulated thermosensitive liposomes (ts-lip-ADM) and common liposomes (lip-ADM) were developed and evaluated. The encapsulation efficiency of the two liposomes were above 99%, and the average sizes of liposomes were about 120 nm. Temperature-dependent drug release from loaded liposomes in vitro was…

Nanoparticle-Based Drug DeliveryExtracellular vesicles in diseaseNanoplatforms for cancer theranostics

Individually color-coded plasmonic nanoparticles for RGB analysis

Yue Liu、Jian Ling、Cheng Zhi Huang2011-01-01Chemical Communications

Colors of scattering light of single gold nanoparticles (AuNPs) were coded with the tricolor (RGB) system by assigning digital values to R, G and B and then this was applied to binding studies of thiols to AuNPs through RGB analysis.

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesAdvanced Nanomaterials in Catalysis

Efficient surface structuring and photoalignment of supramolecular polymer–azobenzene complexes through rational chromophore design

Jaana Vapaavuori、Ville Valtavirta、Tapani Alasaarela 等 7 位作者2011-01-01Journal of Materials Chemistry

Rational selection of the para-substituent of azobenzene chromophores in supramolecular polymeric complexes is exploited to control the chromophore–chromophore intermolecular interactions occurring in the material system. This allows optimizing the material system for either efficient surface-relief formation or for h…

Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsPhotochromic and Fluorescence Chemistry

Sequence-Specific Ultrasonic Cleavage of DNA

Sergei Grokhovsky、I. A. Il’icheva、D. Yu. Nechipurenko 等 7 位作者2011-01-01Biophysical Journal

We investigated the phenomenon of ultrasonic cleavage of DNA by analyzing a large set of cleavage patterns of DNA restriction fragments using polyacrylamide gel electrophoresis. The cleavage intensity of individual phosphodiester bonds was found to depend on the nucleotide sequence and the position of the bond with re…

DNA and Nucleic Acid ChemistrySpectroscopy and Quantum Chemical StudiesUltrasound and Cavitation Phenomena

Support effect in the gas phase oxidation of ethanol over nanoparticulate gold catalysts

Takashi Takei、Norihiko Iguchi、Masatake Haruta2011-01-01New Journal of Chemistry

Twenty three kinds of metal oxides were screened as supports for Au nanoparticles (Au NPs) in the gas phase oxidation of ethanol. Mild oxidation to acetaldehyde, which is economically preferable, is catalyzed by Au NPs deposited on catalytically inert metal oxides, in particular, strongly acidic MoO3 or weakly basic L…

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

A facile and convenient fluorescence detection of gamma-ray radiation based on the aggregation-induced emission

Zitong Liu、Wangxin Xue、Zhengxu Cai 等 5 位作者2011-01-01Journal of Materials Chemistry

A facile and convenient fluorescence detection of gamma-ray radiation is reported. This is based on the ensemble of silole 1 and polymer 2, by taking advantages of AIE (aggregation-induced emission) behavior of silole compounds and the fact that polymers with –SO2groups in the main chain can be degraded upon gamma-ray…

Molecular Sensors and Ion DetectionLuminescence and Fluorescent MaterialsAnalytical Chemistry and Sensors