Surface coating affects behavior of metallic nanoparticles in a biological environment

• Darija Domazet Jurašin,
• Marija Ćurlin,
• Ivona Capjak,
• Tea Crnković,
• Marija Lovrić,
• Michal Babič,
• Daniel Horák,
• Ivana Vinković Vrček and
• Srećko Gajović

Beilstein J. Nanotechnol. 2016, 7, 246–262, doi:10.3762/bjnano.7.23

• from Figure 5. Thus, the high ionic strength of BM caused an agglomeration expected to be close to diffusion-limited. Moreover, the fast agglomeration of investigated NPs in BM was visible even to the naked eye. Immediately after the addition of clear NP stock solution into the BM, a cloudy black

Influence of calcium on ceramide-1-phosphate monolayers

• Joana S. L. Oliveira,
• Gerald Brezesinski,
• Alexandra Hill and
• Arne Gericke

Beilstein J. Nanotechnol. 2016, 7, 236–245, doi:10.3762/bjnano.7.22

• ) stretching mode at approx. 925 cm−1 [14]. It is important to note that the phosphate bands region is noisy and the accurate analysis of the peak position of the bands is challenging. Therefore no fitting was performed, and the peak positions were defined by an eye analysis. Apart from the asymmetrical PO32

Plasticity-mediated collapse and recrystallization in hollow copper nanowires: a molecular dynamics simulation

• Amlan Dutta,
• Arup Kumar Raychaudhuri and
• Tanusri Saha-Dasgupta

Beilstein J. Nanotechnol. 2016, 7, 228–235, doi:10.3762/bjnano.7.21

• ) recovery are plotted as functions of temperature. The solid curves are to guide the eye. Acknowledgements AD acknowledges the financial support provided by DST (Govt. of India) under the INSPIRE faculty scheme. AKR acknowledges the financial support from Nanomission, DST, for a sponsored project (Unit for

3D solid supported inter-polyelectrolyte complexes obtained by the alternate deposition of poly(diallyldimethylammonium chloride) and poly(sodium 4-styrenesulfonate)

• Eduardo Guzmán,
• Armando Maestro,
• Sara Llamas,
• Jesús Álvarez-Rodríguez,
• Francisco Ortega,
• Ángel Maroto-Valiente and
• Ramón G. Rubio

Beilstein J. Nanotechnol. 2016, 7, 197–208, doi:10.3762/bjnano.7.18

• through XPS (open triangles). The solid lines are to guide the eye. (a) Multilayer thickness of (PDADMAC + PSS)N films formed at an ionic strength of 0.10 M as a function of N, measured under wet conditions (ellipsometry) and dry conditions (X-ray reflectivity). (b) Swelling ratio as a function of N for

• the multilayers of part a. The lines are to guide the eye. (a) Dependence on the salt concentration of the atomic fraction of nitrogen in (PDADMAC + PSS)N films, obtained by XPS measurement at different angles of electron emission: (squares) −40°, (circles) −30°, (upward triangles) −20°, (downward

• triangles) −10°, (diamonds) 0°, (leftward triangles) 10°. The solid lines are to guide the eye. (b) Dependence on the salt concentration of the atomic fraction of sulfur in (PDADMAC + PSS)N films, obtained by XPS measurement at different angles of electron emission: (squares) −40°, (circles) −30°, (upward

Sonochemical co-deposition of antibacterial nanoparticles and dyes on textiles

• Ilana Perelshtein,
• Anat Lipovsky,
• Nina Perkas,
• Tzanko Tzanov and
• Aharon Gedanken

Beilstein J. Nanotechnol. 2016, 7, 1–8, doi:10.3762/bjnano.7.1

• the best reaction parameters, which resulted in the highest antibacterial activity and coloration are reported in the experimental section. The presence of the dye on the fabric after the sonochemical reaction can be easily observed by the naked eye (Figure 2). While the color of RO16 changed only

pH-Triggered release from surface-modified poly(lactic-co-glycolic acid) nanoparticles

• Manuel Häuser,
• Klaus Langer and
• Monika Schönhoff

Beilstein J. Nanotechnol. 2015, 6, 2504–2512, doi:10.3762/bjnano.6.260

• substance. In Figure 5, 1H NMR spectra of all polymeric components are shown, except for PLGA, which is insoluble in D2O. Recorded spectra are stacked as a guide to the eye, while each polymer spectrum is normalized to the signal of residual water protons (HDO), calibrated by a chemical shift of 4.8 ppm

Large area scanning probe microscope in ultra-high vacuum demonstrated for electrostatic force measurements on high-voltage devices

• Urs Gysin,
• Thilo Glatzel,
• Thomas Schmölzer,
• Adolf Schöner,
• Sergey Reshanov,
• Holger Bartolf and
• Ernst Meyer

Beilstein J. Nanotechnol. 2015, 6, 2485–2497, doi:10.3762/bjnano.6.258

• sections across the complete sample always located at a centre of a p+-doped shield. In total 14 curves starting from the left to the right are presented. Beside the variation between the differently doped areas the most eye-catching feature is the pronounced change of the potential in the p-type SiC layer

Vibration-mediated Kondo transport in molecular junctions: conductance evolution during mechanical stretching

• David Rakhmilevitch and
• Oren Tal

Beilstein J. Nanotechnol. 2015, 6, 2417–2422, doi:10.3762/bjnano.6.249

• absence of a zero-bias Kondo effect. (b) Schematic representation of a mechanically controllable break junction device. (a) Differential conductance curves measured during the elongation process of the junction. The red lines are a guide to the eye outlining the changing trend of the voltage shift of the

A simple and efficient quasi 3-dimensional viscoelastic model and software for simulation of tapping-mode atomic force microscopy

• Santiago D. Solares

Beilstein J. Nanotechnol. 2015, 6, 2233–2241, doi:10.3762/bjnano.6.229

• tip with a narrow protrusion at the apex, which leads to surprising anomalies, which at first glance may seem unreasonable. However, careful inspection leads to the eye-opening conclusion that this is not so: The region of the curve labeled with the number ‘1’ shows a small force minimum indicating

Controlled switching of single-molecule junctions by mechanical motion of a phenyl ring

• Yuya Kitaguchi,
• Satoru Habuka,
• Hiroshi Okuyama,
• Shinichiro Hatta,
• Tetsuya Aruga,
• Thomas Frederiksen,
• Magnus Paulsson and
• Hiromu Ueba

Beilstein J. Nanotechnol. 2015, 6, 2088–2095, doi:10.3762/bjnano.6.213

• conducting molecule is in the lifted configuration. The horizontal arrows guide the eye to the differences between PhO to PhS around EF, mainly observed in the transmission and chalcogen-site PDOS. Comparison between STM images of (a) PhO, (b) m-cresoxy, and (c) 3,5-xylenoxy molecules on Cu(110). The images

High I_on/I_off current ratio graphene field effect transistor: the role of line defect

• Mohammad Hadi Tajarrod and
• Hassan Rasooli Saghai

Beilstein J. Nanotechnol. 2015, 6, 2062–2068, doi:10.3762/bjnano.6.210

• = Voff + VDD (VDD = 0.7 V), where Voff = Vgs at Ids = Ioff). Symbols show the exact value, and dashed lines are fitted to data points. Channel length dependence of (a) on-current (b) off current (c) on/off current. The lines are a guide to the eye. The dashed blue line is for ELD-GNRFET and the dashed

• red line is for GNRFET. Comparison between average of (a) transconductance and (b) subthreshold swing of ELD-GNRFET and GNRFET as a function of the channel length. The lines are a guide to the eye. Channel width dependence of (a) on-current (b) off current (c) on/off current. The lines are a guide to

• the eye. The dashed blue line is for ELD-GNRFET and the dashed red line is for GNRFET. Comparison between average of (a) transconductance and (b) subthreshold swing of ELD-GNRFET and GNRFET as a function of the channel width. Symbols show the exact value, and dashed lines are fitted to data points.

Comprehensive characterization and understanding of micro-fuel cells operating at high methanol concentrations

• Aldo S. Gago,
• Juan-Pablo Esquivel,
• Neus Sabaté,
• Joaquín Santander and
• Nicolas Alonso-Vante

Beilstein J. Nanotechnol. 2015, 6, 2000–2006, doi:10.3762/bjnano.6.203

• drowning it in the alcohol (observed with the naked eye). Therefore, oxygen is not further supplied at the Pt active sites and MOR at the cathode prevails over the ORR. The final result is a slow dropping in the cathode potential until the cell reaches 0 V making the µDMFC operable just for 420 s. A

The role of low-energy electrons in focused electron beam induced deposition: four case studies of representative precursors

• Rachel M. Thorman,
• Ragesh Kumar T. P.,
• D. Howard Fairbrother and
• Oddur Ingólfsson

Beilstein J. Nanotechnol. 2015, 6, 1904–1926, doi:10.3762/bjnano.6.194

Imaging of carbon nanomembranes with helium ion microscopy

• André Beyer,
• Henning Vieker,
• Robin Klett,
• Hanno Meyer zu Theenhausen,
• Polina Angelova and
• Armin Gölzhäuser

Beilstein J. Nanotechnol. 2015, 6, 1712–1720, doi:10.3762/bjnano.6.175

• appear dark in all parts of this image. To guide the eye, white arrows in Figure 1a,b depict the same position in the sample. Note that regardless of the CNM grid mounting, in both cases, a fast evaluation regarding the area of intact CNMs is easily obtained due to the large field of view (of more than 2

• a guide to the eye. (c) CNMs on a TEM grid with a bright background and substantial membrane charging. (d) CNMs are imaged on a dark background with negligible membrane charging. (e) Schematic cross-section and superimposed line profile of the image greyscale values along the dotted line in (c) with

Influence of surface chemical properties on the toxicity of engineered zinc oxide nanoparticles to embryonic zebrafish

• Zitao Zhou,
• Jino Son,
• Bryan Harper,
• Zheng Zhou and
• Stacey Harper

Beilstein J. Nanotechnol. 2015, 6, 1568–1579, doi:10.3762/bjnano.6.160

• (SP), notochord (N), yolk sac edema (Y), axis (A), eye (E), snout (Sn), jaw (J), otic (O), heart (H), brain (B), somite (So), pectoral fin (PF), caudal fin (CF), pigment (P), circulation (C), trunk (T), swim bladder (SB), and touch response (TR). Statistical analysis Due to the non-parametric nature

• . The 19 sub-lethal endpoints are developmental progression (DP), spontaneous movement (SP), notochord (N), yolk sac edema (Y), axis (A), eye (E), snout (Sn), jaw (J), otic (O), heart (H), brain (B), somite (So), pectoral fin (PF), caudal fin (CF), pigment (P), circulation (C), trunk (T), swim bladder

• (SB), and touch response (TR). Supporting Information File 28: Fisher’s exact test p-value. The 19 sub-lethal endpoints are developmental progression (DP), spontaneous movement (SP), notochord (N), yolk sac edema (Y), axis (A), eye (E), snout (Sn), jaw (J), otic (O), heart (H), brain (B), somite (So

Surface excitations in the modelling of electron transport for electron-beam-induced deposition experiments

• Francesc Salvat-Pujol,
• Roser Valentí and
• Wolfgang S. Werner

Beilstein J. Nanotechnol. 2015, 6, 1260–1267, doi:10.3762/bjnano.6.129

• SE yield, differential with respect to the energy loss of the primary electron and with respect to the energy (or the time of flight) of the emitted secondary electron [55]. These experimental data are displayed for Si under 100 eV electron bombardment in the lower panel of Figure 4 as a bird’s-eye

Improved optical limiting performance of laser-ablation-generated metal nanoparticles due to silica-microsphere-induced local field enhancement

• Zheren Du,
• Lianwei Chen,
• Tsung-Sheng Kao,
• Mengxue Wu and
• Minghui Hong

Beilstein J. Nanotechnol. 2015, 6, 1199–1204, doi:10.3762/bjnano.6.122

• University, 1001 Ta hsueh Rd., Hsinchu 30010, Taiwan 10.3762/bjnano.6.122 Abstract For practical application, optical limiting materials must exhibit a fast response and a low threshold in order to be used for the protection of the human eye and electro-optical sensors against intense light. Many

• into the environment to form a colloidal nanoparticle dispersion [7][8][9]. The nanoparticles have wide application in physics, chemistry, biology and engineering. One of the important applications is that the nanoparticles can be used as optical limiting materials for the protection of the human eye

Magnetic properties of iron cluster/chromium matrix nanocomposites

• Arne Fischer,
• Robert Kruk,
• Di Wang and
• Horst Hahn

Beilstein J. Nanotechnol. 2015, 6, 1158–1163, doi:10.3762/bjnano.6.117

• individual Fe clusters, it was recorded using EDX and the Fe K signal. Blocking temperature TB versus approximated nearest neighbor distances DNN for Fex/Cr samples. The solid lines on three series of samples with 500, 1000 and 2000 atoms are just guides to the eye. A clear dependence of TB on the cluster

Superluminescence from an optically pumped molecular tunneling junction by injection of plasmon induced hot electrons

• Kai Braun,
• Xiao Wang,
• Andreas M. Kern,
• Hilmar Adler,
• Heiko Peisert,
• Thomas Chassé,
• Dai Zhang and
• Alfred J. Meixner

Beilstein J. Nanotechnol. 2015, 6, 1100–1106, doi:10.3762/bjnano.6.111

• μW) for a constant bias voltage of +1800 mV. Spectrally integrated intensity (blue dots) and the full width at half maxium (FWHM) (red diamonds) of the of the luminescence peak as a function of optical pump power are given in (b). The dashed lines are guides to the eye. (c) Spectral narrowing

Tunable magnetism on the lateral mesoscale by post-processing of Co/Pt heterostructures

• Oleksandr V. Dobrovolskiy,
• Maksym Kompaniiets,
• Roland Sachser,
• Fabrizio Porrati,
• Christian Gspan,
• Harald Plank and
• Michael Huth

Beilstein J. Nanotechnol. 2015, 6, 1082–1090, doi:10.3762/bjnano.6.109

• cycling for sample D at a series of temperatures, as indicated. Insets: Temperature dependencies of the squareness Mr/Ms and the coercive field Hc for sample D. The lines are guides for the eye. Geometrical dimensions, thickness-integrated composition, and magnetic properties of the samples. l: length; w

From lithium to sodium: cell chemistry of room temperature sodium–air and sodium–sulfur batteries

• Philipp Adelhelm,
• Pascal Hartmann,
• Conrad L. Bender,
• Martin Busche,
• Christine Eufinger and
• Juergen Janek

Beilstein J. Nanotechnol. 2015, 6, 1016–1055, doi:10.3762/bjnano.6.105

Protein corona – from molecular adsorption to physiological complexity

• Lennart Treuel,
• Dominic Docter,
• Michael Maskos and
• Roland H. Stauber

Beilstein J. Nanotechnol. 2015, 6, 857–873, doi:10.3762/bjnano.6.88

• eye. The collision efficiency becomes zero around the point where monolayer surface coverage can be expected. (b): Data-plot of surface coverage versus the logarithmic HSA-concentration from the same study [53]. Surface coverage was inferred from the stabilizing effect of the HSA corona forming around

Capillary and van der Waals interactions on CaF₂ crystals from amplitude modulation AFM force reconstruction profiles under ambient conditions

• Annalisa Calò,
• Oriol Vidal Robles,
• Sergio Santos and
• Albert Verdaguer

Beilstein J. Nanotechnol. 2015, 6, 809–819, doi:10.3762/bjnano.6.84

• distance. Then Fts increases very rapidly with dmin and the force profile is similar to that observed at distances past the minima in force in Figure 2a. Here mechanical contact occurs and repulsive forces dominate the tip–sample interaction [27]. We set dmin = 0 by eye at the point where Fts changes its

Morphology control of zinc oxide films via polysaccharide-mediated, low temperature, chemical bath deposition

• Florian Waltz,
• Hans-Christoph Schwarz,
• Andreas M. Schneider,
• Stefanie Eiden and
• Peter Behrens

Beilstein J. Nanotechnol. 2015, 6, 799–808, doi:10.3762/bjnano.6.83

• deposition procedure according to Greene et al. reproducibly led to high film quality in the final product [43]. The seeding did not result in clouding of the glass slides, which would have been observable with the naked eye. The XRD patterns of glass slides seeded in this way displayed only a broad signal

Conformal SiO₂ coating of sub-100 nm diameter channels of polycarbonate etched ion-track channels by atomic layer deposition

• Nicolas Sobel,
• Christian Hess,
• Manuela Lukas,
• Anne Spende,
• Bernd Stühn,
• M. E. Toimil-Molares and
• Christina Trautmann

Beilstein J. Nanotechnol. 2015, 6, 472–479, doi:10.3762/bjnano.6.48

• to the eye. Contact angle measurements as a function of the number of ALD cycles. With increasing thickness of the SiO2 layer the samples become more hydrophilic. Surface composition (in atom %) of a pristine PC membranes and SiO2-coated membrane after different numbers of ALD cycles. Results of the