Bimetallic AgAu Janus nanoparticles were prepared by galvanic exchange reactions of 1-hexanethiolate-passivated silver (AgC6) nanoparticles with gold(I)-mercaptopropanediol complex. The AgC6 nanoparticles were deposited onto a solid substrate surface by the Langmuir-Blodgett method such that the galvanic exchange reactions were limited to the top face of the nanoparticles that was in direct con...

Photonic crystal coupled with plasmonic nanoparticle arrays to form a periodic plasmonic architecture was prepared by loading Au nanoparticles inside the inverse opal TiO(2) film. The visible and near infrared light absorption was increased by 62% and the overall light-to-electricity conversion yield was thus increased by 41% compared with the control test.

A simple but efficient method for highly sensitive Raman detection, covering a thin polydimethylsiloxane elastomer, pre-coated with a layer of Au or Ag nanoparticles, onto the detected substrate, is proposed. Moreover, this nanoparticle-coated PDMS elastomer can be used for chemical imaging with high sensitivity.

We demonstrate by means of surface-enhanced Raman scattering of 2,6-dimethylphenylisocyanide that the surface potential of Au nanoparticle aggregates changes upon contact with polar organic vapors such as acetone and ammonia by as much as +0.16 and -0.56 V, respectively.

A new method of synthesising nanoparticle-functionalised nanostructured materials via Aerosol Assisted Chemical Vapour Deposition (AACVD) has been developed. Co-deposition of Au nanoparticles with WO(3) nanoneedles has been used to deposit a sensing layer directly onto gas sensor substrates providing devices with a six-fold increase in response to low concentrations of a test analyte (ethanol).

We employ, for the first time, a shell-isolated nanoparticle-enhancement strategy to extend Raman spectroscopy studies to single crystal electrode surfaces in ionic liquids, and combine density functional theory (DFT) calculations to elucidate the structural details of the imidazolium-based ionic liquid-Au single crystal electrode interfaces.

Grating-coupled propagating surface plasmons associated with silver-nanoparticle 2D crystalline sheets exhibit sensitive plasmonic resonance tuning. Multilayered silver-nanoparticle 2D crystalline sheets are fabricated on gold or silver grating surfaces by the Langmuir- Blodgett method. We show that the deposition of Ag crystalline nanosheets on Au or Ag grating surfaces causes a drastic change...

To enhance the bioactivity of molecules through nanoparticles is being tested which has potential use in sustained-release drug delivery systems and to therapeutic effectiveness drugs. Our current investigation s conjugate lectin that a gold nanoparticle (GNP) surface without disturbing bioactive properties enhances antibacterial activity lectin. Au-lectin were checked for their hemagglutinatio...

The construction of liquid crystal compositions consisting of the dimeric liquid crystal, CB_C9_CB (cyanobiphenyl dimer = 1'',9''-bis(4-cyanobiphenyl-4'-yl)nonane), and the range of nematic systems is explored. The materials include a laterally functionalized monomer, which was used to construct a phase diagram with CB_C9_CB, as well as one laterally linked dimer liquid crystal material and two...

The effect of core-shell polymer-coated nanoparticles on block copolymer morphology is investigated systematically by controlling particle positioning within a block copolymer template. Our approach of varying the areal chain density (Σ) of short thiol terminated polystyrene (PS-SH) brushes on the particles where the molecular weight (Mn) of the PS ligands (2.5 kg/mol) is used to control the fr...