A versatile route to edge-specific modifications to pristine graphene by electrophilic aromatic substitution.

Electrophilic aromatic substitution produces edge-specific modifications to CVD graphene and graphene nanoplatelets that are suitable for specific attachment of biomolecules.

Contrast Extravasation using Power Injectors for Contrast-Enhanced Computed Tomography in Children: Frequency and Injury Severity.

Purpose: To evaluate the safety of power injectors for contrast-enhanced computed tomography (CT) in children, namely: the prevalence and injury severity of contrast extravasations related to power injectors and the factors associated with these events.

Methods: The need to obtain informed consent was waived for this HIPAA-compliant and IRB approved retrospective study. Around 2429 contrast-enhanced CT performed with a power injector were identified during a 3-year period.

Fluorescence-Lifetime Imaging and Super-Resolution Microscopies Shed Light on the Directed- and Self-Assembly of Functional Porphyrins onto Carbon Nanotubes and Flat Surfaces.

Functional porphyrins have attracted intense attention due to their remarkably high extinction coefficients in the visible region and potential for optical and energy-related applications. Two new routes to functionalised SWNTs have been established using a bulky Zn -porphyrin featuring thiolate groups at the periphery. We probed the optical properties of this zinc(II)-substituted, bulky aryl porphyrin and those of the corresponding new nano-composites with single walled carbon nanotube (SWNTs) and coronene, as a model for graphene.

Diamagnetic Ru(2+) in Na2La2Ti2RuO10-x (0 < x < 2): A Series of Complex Oxides Prepared by Topochemical Reduction.

Reaction of the n = 3 Ruddlesden-Popper phase Na2La2Ti2RuO10 with a 5% H2/95% N2 atmosphere between 300 and 900 °C leads to the formation of phases of composition Na2La2Ti2RuO10-x (0 < x < 2) via topochemical reduction. Magnetization data collected from Na2La2Ti2RuO10-x samples in the range 0 < x < 1 show a rapid decline in susceptibility with increasing x, consistent with the conversion of S = 1, Ru(4+) centers at x = 0 to S = 0, Ru(2+) centers at x = 1. We believe this is the first report of diamagnetic Ru(2+) centers in an extended oxide phase.

Understanding carbon dioxide adsorption on univalent cation forms of the flexible zeolite Rho at conditions relevant to carbon capture from flue gases.

A series of univalent cation forms of zeolite Rho (M(9.8)Al(9.8)Si(38.