Volume 5

Issue 03,2012

(8 articles)

Qiangfeng Xiao1, Mei Cai2 (), Michael P. Balogh2, Misle M. Tessema1, and Yunfeng Lu3 ()

Pt ultrathin nanowires (b) have been synthesized from dumbbell nuclei (a) by symmetric growth and used for electrocatalytic reduction of oxygen.
2012, 5(3): 145–151

Jung Min Bae1, Woo Jung Lee1, Jin Won Ma1, Mann Ho Cho1 (), Jae Pyung Ahn2, and Hong Seok Lee3

During the oxidation process of the SiNWs, since the Au–Si alloy of the tip is confined by the surrounding cylindrical SiO2 layer, the Au–Si alloy can be deformed by the SiO2. As a result, the transformation of the Au tip after oxidationshows different tendency depending on wire diameter (top: small diameter, bottom: large diameter).
2012, 5(3): 152–163

Gyungseon Seol, Bala Kumar, and Jing Guo ()

The bandgap of two-dimensional (2D) graphene can be tuned by applying chemical modifications such as hydrogenation or fluorination. Metal–oxide–semiconductor field-effect transistors (MOSFETs) employing selectively chemical modified graphene as a channel have been assessed.
2012, 5(3): 164–171

Moh Amer, Adam Bushmaker, and Steve Cronin ()

A sudden decrease in current, or “kink”, is observed in the current-voltage characteristics of suspended carbon nanotube devices. This anomalous feature is attributed to a threshold optical phonon emission process, through a systematic investigation.
2012, 5(3): 172–180

Lei Zhang, Dingqiong Chen, Zhiyuan Jiang (), Jiawei Zhang, Shuifen Xie, Qin Kuang, Zhaoxiong Xie (), and Lansun Zheng

Pt nanocrystals (NCs) with a series of {hkk} high-index facets including {211} and {411} have been successfully synthesized via a solvothermal method. The as-prepared Pt NCs with high-index {hkk} surfaces exhibited much better catalytic activity in the electro-oxidation of ethanol than a commercial Pt/C catalyst or Pt nanocubes with low-index {100} surfaces, and the catalytic activities of Pt crystal facets decreased in the sequence {411}>{211}>{100}.
2012, 5(3): 181–189

Henrik Persson1 (), Jason P. Beech1, Lars Samuelson1, Stina Oredsson2, Christelle N. Prinz1,3, and Jonas O. Tegenfeldt1,4 ()

We show a fabrication method to create oxide nanotubes with a subsurface fluidic connection. The final device will be used to inject molecules into cells pierced by the nanotubes.
2012, 5(3): 190–198

Xinxing Ma1,2,, Huiquan Tao2,, Kai Yang2, Liangzhu Feng2, Liang Cheng2, Xiaoze Shi2, Yonggang Li1 (*), Liang Guo1 (*), and Zhuang Liu2 (*)

A multi-functional graphene oxide–iron oxide hybrid nanocomposite (GO–IONP) has been synthesized and then functionalized by a biocompatible polymer, polyethylene glycol (PEG). The resulting GO–IONP–PEG is biocompatible and can be utilized for magnetically targeted drug delivery, photothermal therapy, and in vivo magnetic resonance imaging of tumor-bearing mice.
2012, 5(3): 199–212

Fanke Meng1, Zhanglian Hong2 (), James Arndt3, Ming Li1, Mingjia Zhi1, Feng Yang4, and Nianqiang Wu1 ()

Doping nitrogen into pristine lanthanum titanate (La2Ti2O7) nanosheets can narrow the band gap rather than creating localized mid-gap states, which is able to improve the photocatalytic activity of La2Ti2O7 nanosheets under both visible light and ultraviolet light irradiation.
2012, 5(3): 213–221