Collembola cuticles and the three-phase line tension

• Håkon Gundersen,
• Hans Petter Leinaas and
• Christian Thaulow

Beilstein J. Nanotechnol. 2017, 8, 1714–1722, doi:10.3762/bjnano.8.172

• al demonstrated a lipid layer (epicuticular wax) covering all parts of the Collembola cuticle, using time-of-flight secondary ion mass spectrometry [30]. A lipophilic dye, such as Nile Red, will bind to any part of such a layer it came into contact with, thus staining the part of a surface wetted by

Deposition of exchange-coupled dinickel complexes on gold substrates utilizing ambidentate mercapto-carboxylato ligands

• Martin Börner,
• Laura Blömer,
• Marcus Kischel,
• Peter Richter,
• Georgeta Salvan,
• Dietrich R. T. Zahn,
• Pablo F. Siles,
• Maria E. N. Fuentes,
• Carlos C. B. Bufon,
• Daniel Grimm,
• Oliver G. Schmidt,
• Daniel Breite,
• Bernd Abel and
• Berthold Kersting

Beilstein J. Nanotechnol. 2017, 8, 1375–1387, doi:10.3762/bjnano.8.139

• HS(C6H4)2CO2− (8)), and their ability to adsorb on gold surfaces is reported. Besides elemental analysis, IR spectroscopy, electrospray ionization mass spectrometry (ESIMS), UV–vis spectroscopy, and X-ray crystallography (for 6 and 7), the compounds were also studied by temperature-dependent magnetic

• soluble in polar aprotic solvents (e.g., acetone, acetonitrile, or dichloromethane), but are only sparingly soluble in alcohols and insoluble in H2O. The products gave satisfactory elemental analyses and the electrospray ionization mass spectrometry (ESIMS) spectra with base peaks for the individual [Ni2L

Synthesis, spectroscopic characterization and thermogravimetric analysis of two series of substituted (metallo)tetraphenylporphyrins

• Rasha K. Al-Shewiki,
• Carola Mende,
• Roy Buschbeck,
• Pablo F. Siles,
• Oliver G. Schmidt,
• Tobias Rüffer and
• Heinrich Lang

Beilstein J. Nanotechnol. 2017, 8, 1191–1204, doi:10.3762/bjnano.8.121

• elevated temperatures. Metalloporphyrins 2a–d and 3a–d were obtained in yields exceeding 60% and have been, as well as 2 and 3, characterized by elemental analysis, electrospray ionization mass spectrometry (ESIMS) and IR and UV–vis spectroscopy. Porphyrins 2, 2a–d and 3, 3a–d are not suitable for organic

• molecular beam deposition (OMBD), which is attributed to their comparatively low thermal stability as determined by thermogravimetric analysis (TG) of selected representatives. Keywords: electrospray ionization mass spectrometry; IR spectroscopy; metalloporphyrin; porphyrin; thermogravimetry; UV–vis

• porphyrins 2 and 3 are indicated by the disappearance of their N–H 1H NMR resonances. Electrospray ionization mass spectrometry High-resolution mass spectrometry (HRMS) studies enable one to verify the successful formation of 2/3 and of 2a–d/3a–d. The ESIMS measurements in positive-ionization mode were

Recombinant DNA technology and click chemistry: a powerful combination for generating a hybrid elastin-like-statherin hydrogel to control calcium phosphate mineralization

• Mohamed Hamed Misbah,
• Mercedes Santos,
• Luis Quintanilla,
• Christina Günter,
• Matilde Alonso,
• Andreas Taubert and
• José Carlos Rodríguez-Cabello

Beilstein J. Nanotechnol. 2017, 8, 772–783, doi:10.3762/bjnano.8.80

• purification, ELRs were characterized using matrix-assisted laser deposition ionization time of flight mass spectrometry (MALDI-TOF-MS), attenuated total reflection infrared spectroscopy (ATR-IR) and nuclear magnetic resonance spectroscopy (1H NMR). 3 Preparation of ELR hydrogels ELR hydrogels were made by

• different incubation times (4, 8, and 14 days) by removing and rinsing with ultrapure water followed by drying under vacuum at 37 °C. 6 Analysis 6.1 Matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF-MS) The molecular weight (Mw) of the ELRs was determined by MALDI-TOF

Selective photodissociation of tailored molecular tags as a tool for quantum optics

• Ugur Sezer,
• Philipp Geyer,
• Moritz Kriegleder,
• Maxime Debiossac,
• Armin Shayeghi,
• Markus Arndt,
• Lukas Felix and
• Marcel Mayor

Beilstein J. Nanotechnol. 2017, 8, 325–333, doi:10.3762/bjnano.8.35

• -resolution mass spectrometry (HRMS). Detailed experimental protocols together with analytical data are provided in Supporting Information File 1. Photocleavage in solution The photoinduced degradation of the target compound was first studied in solution. Initially, we planned to investigate the photocleavage

Nitrogen-doped twisted graphene grown on copper by atmospheric pressure CVD from a decane precursor

• Ivan V. Komissarov,
• Nikolai G. Kovalchuk,
• Vladimir A. Labunov,
• Ksenia V. Girel,
• Olga V. Korolik,
• Mikhail S. Tivanov,
• Algirdas Lazauskas,
• Mindaugas Andrulevičius,
• Tomas Tamulevičius,
• Viktoras Grigaliūnas,
• Šarunas Meškinis,
• Sigitas Tamulevičius and
• Serghej L. Prischepa

Beilstein J. Nanotechnol. 2017, 8, 145–158, doi:10.3762/bjnano.8.15

• magnitude smaller than for a N2 dissociation process. For example, for the •CH + N2 = N + •CHN reaction this value was determined as 21.2 ± 0.7 kcal/mol [66]. Moreover, as it was proved by time-of-flight mass spectrometry experiments, various hydrocarbon radicals can be formed from n-decane just by thermal

Monolayer graphene/SiC Schottky barrier diodes with improved barrier height uniformity as a sensing platform for the detection of heavy metals

• Ivan Shtepliuk,
• Jens Eriksson,
• Volodymyr Khranovskyy,
• Tihomir Iakimov,
• Anita Lloyd Spetz and
• Rositsa Yakimova

Beilstein J. Nanotechnol. 2016, 7, 1800–1814, doi:10.3762/bjnano.7.173

• properties. It is also important to note that the most popular approaches to detect heavy metals are mainly based on complicated chromatography principles [3], photometric methods [4], atomic absorption spectroscopy [5], mass spectrometry [6] and total reflection X-Ray fluorimetry [7]. These techniques

Precise in situ etch depth control of multilayered III−V semiconductor samples with reflectance anisotropy spectroscopy (RAS) equipment

• Ann-Kathrin Kleinschmidt,
• Lars Barzen,
• Johannes Strassner,
• Christoph Doering,
• Henning Fouckhardt,
• Wolfgang Bock,
• Michael Wahl and
• Michael Kopnarski

Beilstein J. Nanotechnol. 2016, 7, 1783–1793, doi:10.3762/bjnano.7.171

• multilayered III–V semiconductors in situ. The related accuracy of etch depth control is better than 16 nm. Comparison with results of secondary ion mass spectrometry (SIMS) reveals a deviation of only about 4 nm in optimal cases. To illustrate the applicability of the reported method in every day settings for

• increase with decreasing structure size, in situ monitoring is gaining importance. There are various approaches to monitor and control the etch depth during dry-etching: With methods based on gas-phase analysis such as mass spectrometry of the residual gas [12] or optical gas-phase analysis such as optical

• accuracy in etch depth control with RAS, which until now had been estimated only in our earlier publications [8][9], is demonstrated. Different etch depths have been monitored during etching of layered samples and the results are compared to secondary ion mass spectrometry (SIMS) measurements of the

Numerical investigation of depth profiling capabilities of helium and neon ions in ion microscopy

• Patrick Philipp,
• Lukasz Rzeznik and
• Tom Wirtz

Beilstein J. Nanotechnol. 2016, 7, 1749–1760, doi:10.3762/bjnano.7.168

• specifically secondary ion mass spectrometry (SIMS), analysis of organic samples by sputtering is also one important field of applications and the kind of damage mentioned for previous applications remains the same. However, for depth profiling applications of polymers [19] and biological samples [20

• Patrick Philipp Lukasz Rzeznik Tom Wirtz Advanced Instrumentation for Ion Nano-Analytics (AINA), MRT Department, Luxembourg Institute of Science and Technology (LIST), 41 rue du Brill, L-4422 Belvaux, Luxembourg 10.3762/bjnano.7.168 Abstract The analysis of polymers by secondary ion mass

• spectrometry (SIMS) has been a topic of interest for many years. In recent years, the primary ion species evolved from heavy monatomic ions to cluster and massive cluster primary ions in order to preserve a maximum of organic information. The progress in less-damaging sputtering goes along with a loss in

Nanoanalytics for materials science

• Thilo Glatzel and
• Tom Wirtz

Beilstein J. Nanotechnol. 2016, 7, 1674–1675, doi:10.3762/bjnano.7.159

• sensors for both nanoindentation and depth sensing is presented by Cinar and co-workers [2]. Furthermore, Fleming et al. present an in situ combination of atomic force microscopy (AFM) and secondary ion mass spectrometry (SIMS) [3]. By doing so, they obtain high-resolution 3D elemental/chemical maps. This

Graphene-enhanced plasmonic nanohole arrays for environmental sensing in aqueous samples

• Christa Genslein,
• Peter Hausler,
• Eva-Maria Kirchner,
• Rudolf Bierl,
• Antje J. Baeumner and
• Thomas Hirsch

Beilstein J. Nanotechnol. 2016, 7, 1564–1573, doi:10.3762/bjnano.7.150

• is an urgent task. Most widely used techniques are gas chromatography and high performance liquid chromatography coupled with mass spectrometry (GC–MS and HPLC–MS), however often enrichment and extraction steps prior to the analysis are necessary [7]. An online detection system for natural water with

Antitumor magnetic hyperthermia induced by RGD-functionalized Fe₃O₄ nanoparticles, in an experimental model of colorectal liver metastases

• Oihane K. Arriortua,
• Eneko Garaio,
• Borja Herrero de la Parte,
• Maite Insausti,
• Luis Lezama,
• Fernando Plazaola,
• Jose Angel García,
• Jesús M. Aizpurua,
• Maialen Sagartzazu,
• Mireia Irazola,
• Nestor Etxebarria,
• Ignacio García-Alonso,
• Alberto Saiz-López and
• José Javier Echevarria-Uraga

Beilstein J. Nanotechnol. 2016, 7, 1532–1542, doi:10.3762/bjnano.7.147

• analyses. The iron concentration [Fe] in micrograms per gram (µg·g−1) was measured in samples of hepatic and tumor tissue by inductively coupled plasma mass spectrometry (ICP-MS). The infusion of MNPs significantly increased [Fe] in the liver of MNpG rats as compared to quantifications obtained in SG

False positives and false negatives measure less than 0.001% in labeling ssDNA with osmium tetroxide 2,2’-bipyridine

• Anastassia Kanavarioti

Beilstein J. Nanotechnol. 2016, 7, 1434–1446, doi:10.3762/bjnano.7.135

• the above stability tests were done in pure water, as the osmylation reaction is carried out in pure water. Further investigation into the stability of C(OsBp) containing oligos as well as the stability of C(Me)(OsBp) oligos should be done, and major degradants should be identified by NMR and mass

• spectrometry, but the corresponding reactions need to be carried out in buffers, because most of this instability is known to be pH-dependent [37]. For the purposes of sequencing osmylated DNA via nanopores, one may conjecture that tentative degradation of osmylated C under current labeling conditions of 2 h

Microwave synthesis of high-quality and uniform 4 nm ZnFe₂O₄ nanocrystals for application in energy storage and nanomagnetics

• Christian Suchomski,
• Ben Breitung,
• Ralf Witte,
• Michael Knapp,
• Sondes Bauer,
• Tilo Baumbach,
• Christian Reitz and
• Torsten Brezesinski

Beilstein J. Nanotechnol. 2016, 7, 1350–1360, doi:10.3762/bjnano.7.126

• the iTEM software. Thermogravimetric analysis was performed on a Netzsch STA 409 PC. The thermobalance was coupled to a Balzers QMG 421 quadrupole mass spectrometer. The ionization energy was 70 eV. Gas chromatography-mass spectrometry was performed on an Agilent 6890 gas chromatograph equipped with

• sol–gel synthesis using anhydrous zinc acetate and iron(III) acetylacetonate as the precursors and rac-1-phenylethanol as a solvent. Details on the formation mechanism from gas chromatography-mass spectrometry (GC-MS) are given in Supporting Information File 1, Figure S1–S4 and Table S1. The size and

• energies arise from organic compounds containing C–O and C=O bonds, respectively. The fact that the as-prepared nanoparticles are not “naked” was also confirmed by thermogravimetric analysis-mass spectrometry (TGA-MS). The TGA-MS data of vacuum-dried material in Supporting Information File 1, Figure S5

Experimental and simulation-based investigation of He, Ne and Ar irradiation of polymers for ion microscopy

• Lukasz Rzeznik,
• Yves Fleming,
• Tom Wirtz and
• Patrick Philipp

Beilstein J. Nanotechnol. 2016, 7, 1113–1128, doi:10.3762/bjnano.7.104

• Lukasz Rzeznik Yves Fleming Tom Wirtz Patrick Philipp Advanced Instrumentation for Ion Nano-Analytics (AINA), MRT Department, Luxembourg Institute of Science and Technology (LIST), 41 rue du Brill, L-4422 Belvaux, Luxembourg 10.3762/bjnano.7.104 Abstract Secondary ion mass spectrometry (SIMS) on

• . Keywords: Helium ion microscopy; irradiation; polymers; preferential sputtering; secondary ion mass spectrometry; simulations; Introduction Progress in materials and life sciences requires sample characterisation with high lateral resolution and high sensitivity. A technique which allows for both is

• secondary ion mass spectrometry (SIMS). Combined with a high-resolution mass spectrometer, mass interferences can be avoided and isotopes and small cluster ions identified unambiguously. These properties have been used since the early days of SIMS for imaging applications [1]. On the Cameca NanoSIMS, which

Phenalenyl-based mononuclear dysprosium complexes

• Yanhua Lan,
• Andrea Magri,
• Olaf Fuhr and
• Mario Ruben

Beilstein J. Nanotechnol. 2016, 7, 995–1009, doi:10.3762/bjnano.7.92

• , paramagnetic 1H NMR, MALDI-TOF mass spectrometry, UV–vis spectrophotometry and magnetic measurements. Both static (dc) and dynamic (ac) magnetic properties of these complexes have been investigated, showing slow relaxation of magnetization, indicative of single molecule magnet (SMM) behavior. Attempts to

• distilled THF, anhydrous starting materials and oven-dried glassware. So far, single crystals of the complex 4 were not obtained, thus its exact structure remains unknown yet. Nevertheless, the product was fully characterized by NMR spectroscopy, mass spectrometry and UV–vis spectrophotometry in comparison

Hierarchical coassembly of DNA–triptycene hybrid molecular building blocks and zinc protoporphyrin IX

• Rina Kumari,
• Sumit Singh,
• Mohan Monisha,
• Sourav Bhowmick,
• Anindya Roy,
• Neeladri Das and
• Prolay Das

Beilstein J. Nanotechnol. 2016, 7, 697–707, doi:10.3762/bjnano.7.62

• of 2,6,14-triptycenetripropiolic acid 2,6,14-triptycenetripropiolicacid (TPA) was synthesized from 2,6,14-tribromotriptycene in three steps as outlined in Scheme 2. The purity of the compound was confirmed by using NMR, mass spectrometry and elemental analysis [35]. Synthesis and characterization of

• denaturing PAGE (Figure 1) and further characterized by RP-HPLC and MALDI-TOF mass spectrometry (MS). Four bands were observed with 20% denaturing PAGE following the conjugation of ssDNA with TPA. With the availability of three carboxylic acid groups in TPA, three products are possible corresponding to the

• PpIX was added during assembly. Supporting Information Supporting information contains characterization of DNA–TPA conjugates and assemblies in presence and absence of Zn PpIX. This file contains denaturing and native PAGE, RP-HPLC chromatograms, MALDI mass spectrometry spectra, AFM images, CD spectra

Finite-size effect on the dynamic and sensing performances of graphene resonators: the role of edge stress

• Chang-Wan Kim,
• Mai Duc Dai and
• Kilho Eom

Beilstein J. Nanotechnol. 2016, 7, 685–696, doi:10.3762/bjnano.7.61

• -frequency dynamic range of nanomechanical resonators has enabled them to be used for development of lab-on-a-chip mass spectrometry [7][8]. For the recent decade, graphene, which is an atomically thin sheet made of carbon atoms, has been highlighted due to its excellent electrical [9][10][11] and mechanical

Determination of the compositions of the DIGM zone in nanocrystalline Ag/Au and Ag/Pd thin films by secondary neutral mass spectrometry

• Gábor Y. Molnár,
• Shenouda S. Shenouda,
• Gábor L. Katona,
• Gábor A. Langer and
• Dezső L. Beke

Beilstein J. Nanotechnol. 2016, 7, 474–483, doi:10.3762/bjnano.7.41

• by grain boundary diffusion-induced grain boundary migration is investigated by secondary neutral mass spectrometry depth profiling in Ag/Au and Ag/Pd nanocrystalline thin film systems. It is shown that the compositions in zones left behind the moving boundaries can be determined by this technique if

• ][19][20] it was indicated that the compositions in the DIGM zones can be determined by secondary neutral mass spectrometry (SNMS) depth profiling. It was shown that i) as it was illustrated in the Cu/Ni system already in 1983 [21], alloying can also take place in the faster component, similarly as in

• × 10−3 Pa) in the temperature range of 150–280 °C for different times. Concentration–depth profiles were determined by measuring the intensity (cps) as a function of the sputtering time (s) using secondary neutral mass spectrometry (SNMS, INA-X, SPECS GmbH, Berlin) equipment. The intensity–sputtering

Orthogonal chemical functionalization of patterned gold on silica surfaces

• Francisco Palazon,
• Didier Léonard,
• Thierry Le Mogne,
• Francesca Zuttion,
• Céline Chevalier,
• Magali Phaner-Goutorbe,
• Éliane Souteyrand,
• Yann Chevolot and
• Jean-Pierre Cloarec

Beilstein J. Nanotechnol. 2015, 6, 2272–2277, doi:10.3762/bjnano.6.233

• orthogonality of the functionalization (i.e., selective grafting of the thiol on the gold areas and the silane on the silica) was demonstrated by X-ray photoelectron spectroscopy (XPS) as well as time-of-flight secondary ion mass spectrometry (ToF–SIMS) mapping. The orthogonal functionalization was used to

Effect of SiN_x diffusion barrier thickness on the structural properties and photocatalytic activity of TiO₂ films obtained by sol–gel dip coating and reactive magnetron sputtering

• Mohamed Nawfal Ghazzal,
• Eric Aubry,
• Nouari Chaoui and
• Didier Robert

Beilstein J. Nanotechnol. 2015, 6, 2039–2045, doi:10.3762/bjnano.6.207

• diffusion barrier thickness using extremely sensitive surface analysis techniques (X-ray photoelectron spectroscopy (XPS) and sputtered neutral mass spectrometry (SNMS)) [5][6][13]. Aubry et al. showed that the concentration of Na+ ions increases with a decrease of the SiNx diffusion barrier of thickness

Electrospray deposition of organic molecules on bulk insulator surfaces

• Antoine Hinaut,
• Rémy Pawlak,
• Ernst Meyer and
• Thilo Glatzel

Beilstein J. Nanotechnol. 2015, 6, 1927–1934, doi:10.3762/bjnano.6.195

• techniques are compatible with molecular resolution, the pollution from solvents remains a problem [3][4][5]. Electrospray ionization (ESI), first developed by Fenn et al. [6] allows for the introduction of large organic molecules in vacuum. Originally developed for mass spectrometry and protein studies, it

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

• studies To study low energy electron-induced processes in the gas phase, a low energy electron beam with a resolution of about 100 meV is crossed with an effusive beam of FEBID precursor molecules and the electron energy dependence for the formation of charged fragments is monitored by mass spectrometry

• electron beam/effusive molecular beam apparatus and product ions were measured using mass spectrometry; the apparatus and methods have each been described in detail [46]. As previously described, electrons with incident energies below the ionization threshold of the parent molecule (7.7 eV for MeCpPtMe3

• , and the potential role of ND in the deposit formation. All of these gas phase studies can be compared with a UHV surface study by Landheer et al. [23], where mass spectrometry was used to monitor desorption of volatile decomposition products and XPS and HREELS were used to monitor the evolution of the

DNA–melamine hybrid molecules: from self-assembly to nanostructures

• Rina Kumari,
• Shib Shankar Banerjee,
• Anil K. Bhowmick and
• Prolay Das

Beilstein J. Nanotechnol. 2015, 6, 1432–1438, doi:10.3762/bjnano.6.148

• phosphoramidation cross coupling was confirmed by polyacrylamide gel electrophoresis (PAGE), reversed phase high performance liquid chromatography (RP-HPLC), matrix-assisted laser desorption/ionization (MALDI) and electrospray ionization (ESI) mass spectrometry (MS). The reaction products were purified by dialysis

• experimental methods, RP-HPLC chromatograms, ESI and MALDI mass spectrometry data and spectra, AFM images, and CD spectra. Acknowledgements This work was supported by a grant to P. D. from the Department of Biotechnology (DBT), Government of India, Project No. BT/PR3444/NNT/28/560/2011. All the authors thank

Peptide-equipped tobacco mosaic virus templates for selective and controllable biomineral deposition

• Klara Altintoprak,
• Axel Seidenstücker,
• Alexander Welle,
• Sabine Eiben,
• Petia Atanasova,
• Nina Stitz,
• Alfred Plettl,
• Joachim Bill,
• Hartmut Gliemann,
• Holger Jeske,
• Dirk Rothenstein,
• Fania Geiger and
• Christina Wege

Beilstein J. Nanotechnol. 2015, 6, 1399–1412, doi:10.3762/bjnano.6.145

• mass spectrometry (ToF-SIMS) [90] was performed on air-dried, drop cast suspensions of TMVwt or TMV–KD10 particles (both with and without 10 days of exposure to TEOS). Positive and negative secondary ion spectra were recorded from random positions of the TMV deposits. The peak assignment is based on