The Penn Treebank does not annotate within base noun phrases (NPs), committing only to flat structures that ignore the complexity of English NPs. This means that tools trained on Treebank data cannot learn the correct internal structure of NPs. This paper details the process of adding gold-standard bracketing within each noun phrase in the Penn Treebank. We then examine the consistency and reli...

A combination of immiscible molecules in the ligand shell of a gold nanoparticle (NP) has been shown to phase separate into a rippled structure; this phase separation can be used to direct the assembly of the NPs into chains. Here we demonstrate that only NPs within a certain size range can form chains, and we conclude that the rippled morphology of the ligand shell also exists only within that...

A novel strategy was developed to synthesize polymer-coated metal nanoparticles (NPs) through reduction of metal cations with 3,4-dihydroxyphenylalanine (DOPA)-containing polyethylene glycol (PEG) polymers. Catechol redox chemistry was used to both synthesize metal NPs and simultaneously form a cross-linked shell of PEG polymers on their surfaces. DOPA reduced gold and silver cations into neutr...

Gold nanoparticles (Au NPs) were prepared by laser ablation of high purity gold bulk immersed in distilled water, the was Nd:YAG with fundamental wavelength (1064 nm) and energy per pulse 700 mJ presence absence magnetic field. The Au NPs identified many methods, like UV-Visible, AFM, XRD FTIR. It is clear from these techniques that shape are spherical existence field causes an increasing inten...

Metal nanoshells consists of a dielectric core surrounded by a thin noble metal shell, possess unique optical properties, which render nanoshells attractive for use in different technologies. This paper reports a facile method for growth of small gold nanoparticles on the functionalized surface of larger silica nanoparticles. Mono-dispersed silica particles and gold nanoparticles were prepared ...

We were delighted to read the article in the European Respiratory Journal by HUSSAIN et al. [1] which demonstrated aggravation of pulmonary inflammation and airway hyperreactivity by gold (Au) nanoparticles (NPs) in a mouse model of chemical-induced asthma. Exposure of sensitised (but not unsensitised) mice to Au NPs was shown to result in increased airway resistance and reactivity to methachol...

We explored photothermal quantitative phase imaging (PTQPI) of living cells with functionalized nanoparticles (NPs) utilizing a cost-efficient setup based on a cell culture microscope. The excitation light was modulated by a mechanical chopper wheel with low frequencies. Quantitative phase imaging (QPI) was performed with Michelson interferometerbased off-axis digital holographic microscopy and...

The sensitive optoelectronic properties of metal nanoparticles make nanoparticle-based materials a powerful tool to study fundamental biorecognition processes. Here we present a new and versatile method for coupling underivatized carbohydrates to gold nanoparticles (Au NPs) via the photochemically induced reaction of perfluorophenylazide (PFPA). A one-pot procedure was developed where Au NPs we...

Precise morphological control of nanoparticles (NPs) has been impeded by the lack of in situ techniques enabling the observation of instantaneous growth steps. Fundamentally, understanding in NP nucleation and growth kinetics has yet to achieve. In the present research, morphological characterization is demonstrated using a novel image detection statistical approach for gold NPs. This multivari...

The optical gas sensing properties of gold (Au) nanoparticles (NPs) doped into titanium dioxide (TiO2 matrix prepared by sol–gel method and annealed at different temperatures have been investigated. AFM images reveal that the Au NPs are exuded from the film during annealing. The chemical interaction of the hydrogen (H2 and carbon monoxide (CO) molecules on the Au surface will increase the overa...