Conducting composite materials from the biopolymer kappa-carrageenan and carbon nanotubes

• Ali Aldalbahi,
• Jin Chu,
• Peter Feng and
• Marc in het Panhuis

Beilstein J. Nanotechnol. 2012, 3, 415–427, doi:10.3762/bjnano.3.48

• target gas (humidified air, H2 and CH4), respectively. The sensitivity of the films to humidity was investigated over a relative humidity change from 40% to 90%. All films responded to the change in humidity, but it was not possible to detect any response after exposure to H2 and CH4 gases at 25 °C

• = 55 mm), which were then dried under controlled conditions (35 °C, relative humidity, RH = 45%) in a temperature–humidity chamber (Thermoline Scientific) for 24 h. The resulting films were peeled off the substrate to yield uniform free-standing films (Figure 9b). Preparation of films by vacuum

Mesoporous MgTa₂O₆ thin films with enhanced photocatalytic activity: On the interplay between crystallinity and mesostructure

• Jin-Ming Wu,
• Igor Djerdj,
• Till von Graberg and
• Bernd M. Smarsly

Beilstein J. Nanotechnol. 2012, 3, 123–133, doi:10.3762/bjnano.3.13

• ) was added, and the final precursor was stirred for a further 6–10 h before dip-coating. This amount of block copolymers was found to be optimum with respect to the mesostructural organization. The MgTa2O6 thin films were deposited on Si wafers by dip coating at a controlled relative humidity of 12

Self-assembly of octadecyltrichlorosilane: Surface structures formed using different protocols of particle lithography

• ChaMarra K. Saner,
• Kathie L. Lusker,
• Zorabel M. LeJeune,
• Wilson K. Serem and
• Jayne C. Garno

Beilstein J. Nanotechnol. 2012, 3, 114–122, doi:10.3762/bjnano.3.12

• pellet was resuspended with 300 µL of deionized water by vortex mixing to prepare a 1% w/v solution. The washing process was repeated twice. A drop (10–15 µL) of the cleaned mesospheres was deposited onto clean Si(111) substrates and dried under ambient conditions (25 °C, ~50% relative humidity) for at

Octadecyltrichlorosilane (OTS)-coated ionic liquid drops: Micro-reactors for homogenous catalytic reactions at designated interfaces

• Xiaoning Zhang and
• Yuguang Cai

Beilstein J. Nanotechnol. 2012, 3, 33–39, doi:10.3762/bjnano.3.4

• . Next, the OTS-coated samples were rinsed in toluene and annealed in a sealed vial at 40 °C, 100% relative humidity (RH) for 12 h. Subsequently, the samples were incubated in a 5 mM OTS toluene solution again. The stabilization (rinsing-annealing-OTS solution incubating) process was repeated for three

The effect of surface anisotropy in the slippery zone of Nepenthes alata pitchers on beetle attachment

• Elena V. Gorb and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2011, 2, 302–310, doi:10.3762/bjnano.2.35

• Kronshagen (Germany). They were kept in small ventilated cages at a temperature of 22–24 °C and relative humidity of 60–75% for four days and fed with a weak solution of honey in tap water. Water was changed daily and the cages were sprayed with water twice a day. Test surfaces Three types of substrates were

• at a room temperature of 22–24 °C and 55–60% relative humidity. Fifteen beetles were tested in each type of experiment. In all, 210 force measurements were carried out. Data are presented in the text as a mean value ± standard deviation. Kruskal-Wallis one way ANOVA on ranks was used to evaluate the

Manipulation of gold colloidal nanoparticles with atomic force microscopy in dynamic mode: influence of particle–substrate chemistry and morphology, and of operating conditions

• Samer Darwich,
• Karine Mougin,
• Akshata Rao,
• Enrico Gnecco,
• Shrisudersan Jayaraman and
• Hamidou Haidara

Beilstein J. Nanotechnol. 2011, 2, 85–98, doi:10.3762/bjnano.2.10

• nanoparticles during their manipulation using AFM in tapping mode has been investigated. In particular, the effects of the size, shape and coating of the nanoparticles, the lateral scan velocity, the particle-surface interactions and the environmental conditions, especially temperature T and relative humidity

• ) substrate [41][42][43]. As we can see here, the eventual role of relative humidity (RH%) which is an environmental parameter, strongly depends on the chemistry of the NP–substrate interface. Another environmental parameter, namely temperature, also affects the mobility of the nanoparticles. The influence of

• and vacuum environment A. Effect of relative humidity The presence of surface contaminants (dust or water) affects the mobility of nanoparticles as this directly changes the intermolecular interactions between the nanoparticles and the surface. As it has been discussed in subsection 2, a contribution

Tip-sample interactions on graphite studied using the wavelet transform

• Giovanna Malegori and
• Gabriele Ferrini

Beilstein J. Nanotechnol. 2010, 1, 172–181, doi:10.3762/bjnano.1.21

• ) surface. All the experiments have been conducted in air, with a relative humidity of less than 50%. Figure 1 schematically shows the experimental apparatus: the electronic noise level is small enought to detect up to five flexural eigenmodes. The optical lever sensitivity is calibrated by taking the force

The description of friction of silicon MEMS with surface roughness: virtues and limitations of a stochastic Prandtl–Tomlinson model and the simulation of vibration-induced friction reduction

• W. Merlijn van Spengen,
• Viviane Turq and
• Joost W. M. Frenken

Beilstein J. Nanotechnol. 2010, 1, 163–171, doi:10.3762/bjnano.1.20

• .; Frenken, J. W. M. Tribol. Lett. 2007, 28, 149–156.] Typical 1000-cycle-average friction loops obtained with the tribometer of Figure 1 [19], at 27 °C and a relative humidity (RH) of 30%. The sliding speed was constant at 5 µm/s. Support position 0 μm is where the loop was started every cycle. This loop is

• (determined as depicted in Figure 3) as a function of the normal load is more or less linear on the scale of MEMS devices. The tests were conducted at 27 °C and a relative humidity of 30%. The fitted friction coefficient is 0.27. Indicated are also the calculated friction force based on an exponential