Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications

• Yaron Paz

Beilstein J. Nanotechnol. 2011, 2, 845–861, doi:10.3762/bjnano.2.94

• ]. Generally speaking, a comprehensive comparison between SAMs on silica and SAMs on titanium dioxide is somehow problematic as the latter were by far less-extensively studied than the former. It is commonly claimed that silanes capable of cross linking (i.e., having at least three leaving groups) grow by an

• islandlike growth mechanism, whereas SAMs that are not capable of cross linking grow by a uniform growth mechanism [15]. While this is well-established for SAMs on Si, results for organosilanes SAMs on titanium dioxide are much more ambiguous. The lower electronegativity of titanium suggests that the

Mechanical characterization of carbon nanomembranes from self-assembled monolayers

• Xianghui Zhang,
• André Beyer and
• Armin Gölzhäuser

Beilstein J. Nanotechnol. 2011, 2, 826–833, doi:10.3762/bjnano.2.92

• nanodevices from freestanding nanomembranes. A variety of approaches to fabricate nanomembranes has been tested: Spin-assisted layer-by-layer (LBL) assembly [3][4]; spin-coating of organic–inorganic hybrid films with an interpenetrating network (IPN) structure [5][6]; cross-linking of ligand-stabilized

• nanoparticle assemblies at the fluid interfaces [7][8]. Freestanding nanomembranes with thicknesses from 20 to 70 nm were achieved by these approaches. Eck et al. reported the fabrication of carbon nanomembranes (CNMs) with a thickness of 1 nm by electron-induced cross-linking of aromatic self-assembled

• by X-ray photoelectron spectroscopy (XPS) to be ~1.6 nm for CBPS SAMs, which was larger than that of NBPT SAMs (~1.2 nm) and BPT SAMs (~0.9 nm) [9][18][19]. As cross-linking occurs between the phenyl rings, a comparable thickness is expected for the corresponding CNMs. The CNM can be modeled as a

Magnetic nanoparticles for biomedical NMR-based diagnostics

• Huilin Shao,
• Tae-Jong Yoon,
• Monty Liong,
• Ralph Weissleder and
• Hakho Lee

Beilstein J. Nanotechnol. 2010, 1, 142–154, doi:10.3762/bjnano.1.17

• relaxation switching. As indicated in Figure 1a, MRSw assays can be designed to cause forward switching: a process whereby molecular targets are used as cross-linking agents to assemble MNPs into clusters, thus effecting a corresponding decrease in T2. Alternatively, the assays can cause reverse switching

Electrochemical behavior of dye-linked L-proline dehydrogenase on glassy carbon electrodes modified by multi-walled carbon nanotubes

• Haitao Zheng,
• Leyi Lin,
• Yosuke Okezaki,
• Ryushi Kawakami,
• Haruhiko Sakuraba,
• Toshihisa Ohshima,
• Keiichi Takagi and
• Shin-ichiro Suye

Beilstein J. Nanotechnol. 2010, 1, 135–141, doi:10.3762/bjnano.1.16

• cross-linking method using glutaraldehyde as the linking agent [35][36]. A 300 μL L-proDH solution and 200 μL glutaraldehyde solution (0.5%, w/w) were mixed. A 12 μL of the above mixture was coated onto the bare GC electrode and dried in a N2 stream at room temperature. The electrode so obtained is

Fabrication and spectroscopic studies on highly luminescent CdSe/CdS nanorod polymer composites

• Jana Bomm,
• Andreas Büchtemann,
• Angela Fiore,
• Liberato Manna,
• James H. Nelson,
• Diana Hill and
• Wilfried G. J. H. M. van Sark

Beilstein J. Nanotechnol. 2010, 1, 94–100, doi:10.3762/bjnano.1.11

• present, the NRs were dispersed at several concentrations in a monomer mixture of lauryl methacrylate (LMA) with the cross-linking agent ethylene glycol dimethacrylate (EGDM) and the liquid UV-initiator Darocure® 4265. LMA provides the hydrophobicity required preventing agglomeration, and by changing the

• octadecylphosphonic acid (ODPA). Various amounts of NRs (0.008–0.32 wt %) were dispersed in a monomer mixture of LMA (Fluka, 98%) with 20 wt % of the cross-linking agent EGDM (Fluka, ≥97%) and 0.1–0.5 wt % of the liquid UV-initiator Darocure® 4265 (Ciba) by ultrasound treatment. The reaction mixtures were transferred