Volume 5

Issue 08,2012

(8 articles)

H. T. Beyene1,2,,§, J. W. Weber2,§, M. A. Verheijen2, M.C.M. van de Sanden2,3, and M. Creatore2 (*)

In situ spectroscopic ellipsometry using a B-spline model to monitor the real time evolution of thickness and the plasmonic properties of Au nanoparticles on a SiO2/c-Si substrate are reported.
2012, 5(8): 513–520
Published: 1 April 2012

Jian Wu1, Yan Xue1, Xin Yan1, Wensheng Yan2, Qingmei Cheng1, and Yi Xie1 ()

A hybrid consisting of Co3O4 nanocrystals supported on single- walled carbon nanotubes (SWNTs) has been fabricated via a simple self-assembly approach. A Co3O4/SWNTs hybrid electrode exhibits high catalytic activity as well as excellent stability for the oxygen evolution reaction under neutral and alkaline conditions.
2012, 5(8): 521–530

Li Shang1, René M. Drlich1, Vanessa Trouillet2, Michael Bruns2, and G. Ulrich Nienhaus1,3()

Effects of protein binding to ultrasmall fluorescent silver nanoclusters (AgNCs) have been investigated by using human serum albumin as a model protein, and the resulting cellular responses, have also been explored.
2012, 5(8): 531–542

Yabo Gao1, Yanfeng Zhang1 (), Jun Ren2, Denghua Li3, Teng Gao1, Ruiqi Zhao1, Yanlian Yang3, Sheng Meng2, Chen Wang3, and Zhongfan Liu1 ()

We report a quantitative detection of the charge properties of few- layer graphene by surface potential measurements using electrostatic force microscopy (EFM). A minor difference in surface potential is observed to mediate a sequential assembly of metal-free phthalocyanine (H2Pc) on monolayer, bilayer and trilayer graphenes, as demonstrated by scanning tunneling microscopy (STM). This abnormal assembly behavior is further investigated by density functional theory (DFT) calculations.
2012, 5(8): 543–549

Andres Castellanos-Gomez1,2(), Menno Poot1,3, Albert Amor-Amorós2, Gary A. Steele1, Herre S.J. van der Zant1, Nicolás Agrat2,4, and Gabino Rubio-Bollinger2()

Using an atomic force microscope, we have studied the deformation of atomically thin sheets (2 to 14 layers) of muscovite mica to determine whether or not they are suitable for future flexible electronic applications. Ultrathin mica shows low pre-tension, high Young's modulus (190 GPa) and withstands large deformations without breaking which allows their use in applications requiring flexible dielectric materials.
2012, 5(8): 550–557

Hiroshi Ueno, Yuji Nakamura, Naohiko Ikuma, Ken Kokubo (), and Takumi Oshima

The lithium-encapsulated fullerenol Li@C60(OH)18 has been synthesized, as clearly evidenced by 7Li NMR spectroscopy. The more anionic surface of Li@C60(OH)18 induced by the inner lithium cation, as compared with that of empty C60(OH)16, resulted in a high degree of dispersal in polar solvents, and thus the molecule (with a diameter of ca. 1.5 nm) can be described as a “cation-encapsulated anion nanoparticle”.
2012, 5(8): 558–564

Lifang Shi1, Jie-Ren Li1, Yi-Ping Shih2, Su Hao Lo2, and Gang-yu Liu1()

Fibronectin nanogratings exhibit high efficacy in templating cellular orientation and polarization, as well as intracellular structures such as preferential filopodia attachment, and spatial arrangement of intracellular actin stress fibers.
2012, 5(8): 565–575

Jinwen Shi, Lijing Ma, Po Wu, Zhaohui Zhou, Penghui Guo, Shaohua Shen, Dengwei Jing, and Liejin Guo ()

A novel cubic-phase pyrochlore structure tin(Ⅱ) antimonate nano- photocatalyst, stoichiometric Sn2Sb2O7, has been prepared by a modified ion-exchange process using an antimonic acid precursor, and was validated as a promising candidate for visible-light-driven H2 evolution for the first time.
2012, 5(8): 576–583