Using density functional theory calculations, we show that recently synthesized carbon nanocomposites of graphene nanoribbons encapsulated in a carbon nanotube (GNR@CNT) possess rich emergent electronic and magnetic properties that offer new functionality and tunability and display systematic trends that are sensitive to the matchup of constitutive GNRs and CNTs. The encapsulation of H-passivat...

A novel colorimetric nitrite ion sensor was developed utilizing 4-aminothiophenol (4-ATP) modified gold nanorods (GNR). In the presence of nitrite ions, the deamination reaction was induced by heating the 4-ATP modified GNR in ethanol solution, resulting in the reduction of the GNR surface charges, which led to aggregation of GNRs and a colorimetric response that was quantitatively correlated t...

We report use of PEG-DSPE coated oxidized graphene nanoribbons (O-GNR-PEG-DSPE) as agent for delivery of anti-tumor drug Lucanthone (Luc) into Glioblastoma Multiformae (GBM) cells targeting base excision repair enzyme APE-1 (Apurinic endonuclease-1). Lucanthone, an endonuclease inhibitor of APE-1, was loaded onto O-GNR-PEG-DSPEs using a simple non-covalent method. We found its uptake by GBM cel...

Abstract Recently, porphyrin units have been attached to graphene nanoribbons (Por-GNR) enabling a multitude of structures. Here we report first-principles calculations two prototypical, experimentally feasible, Por-GNR hybrids, one which displays small band gap relevant as electrodes in devices. Embedding Fe atom the causes spin-polarized ground state ( S = 1). Using density functional theory ...

This article describes the synthesis and characterization of ZnO nanoring embedded graphene nanoribbons. Patterned holes (mesopore dia.) in graphene nanoribbons are chemically generated, leading to a high density of the edge planes. These planes carry negatively charged surface groups (like -COOH and -OH) and therefore anchor the metal ions in a cordial fashion forming a string of metal ions al...

Photothermal optical coherence tomography (PT-OCT) has the potential to increase the molecular specificity of OCT for in vivo pre-clinical studies of cancer, in order to better understand drug uptake and treatment response. However, the use of PT-OCT to image contrast agents in vivo has yet to be demonstrated. Here, we characterize PT-OCT imaging of gold nanorod (GNR) contrast agents, and we fu...

Submitted for the MAR14 Meeting of The American Physical Society Patterning, Characterization and Chemical Sensing Applications of Graphene Nanoribbon Arrays Down to 5 nm Using Helium Ion Beam Lithography1 AHMAD ABBAS, GANG LIU, BILU LIU, LUYAO ZHANG, HE LIU, University of Southern California, DOUGLAS OHLBERG, HP Labs, WEI WU, CHONGWU ZHOU, University of Southern California — Bandgap engineerin...

Plasmon decay via the surface or interface is a critical process for practical energy conversion and plasmonic catalysis. However, relationship between plasmon damping coupling 2D materials still unclear. The spectral splitting due to plasmon–exciton interaction impedes conventional single-particle method evaluate rate by linewidth. single gold nanorod using spectroscopy technique assisted with...

In this paper a measurement model for general noise reaction (GNR) in response to aircraft noise is developed to assess the performance of aircraft noise annoyance and a direct measure of general reaction as indicators of this concept. For this purpose GNR is conceptualized as a superordinate latent construct underlying particular manifestations. This conceptualization is empirically tested thr...