Microbubbles decorated with dendronized magnetic nanoparticles for biomedical imaging: effective stabilization via fluorous interactions

• Da Shi,
• Justine Wallyn,
• Dinh-Vu Nguyen,
• Francis Perton,
• Delphine Felder-Flesch,
• Sylvie Bégin-Colin,
• Mounir Maaloum and
• Marie Pierre Krafft

Beilstein J. Nanotechnol. 2019, 10, 2103–2115, doi:10.3762/bjnano.10.205

• spontaneous adsorption of IONP@CnX2n+1OEG8Den at the interface between air or air saturated with perfluorohexane and an aqueous phase establishes that exposure to the fluorocarbon gas markedly increases the rate of adsorption of the dendronized IONPs to the gas/water interface and decreases the equilibrium

• interfacial tension. This suggests that fluorous interactions are at play between the supernatant fluorocarbon gas and the fluorinated end groups of the dendrons. Furthermore, small perfluorohexane-stabilized microbubbles (MBs) with a dipalmitoylphosphatidylcholine (DPPC) shell that incorporates IONP@CnX2n

• the phospholipid film, while those grafted with the hydrocarbon dendrons are located at the surface of the phospholipid film. Keywords: diagnostic imaging; fluorinated dendrons; fluorocarbon; iron oxide nanoparticles; magnetic nanoparticles; microbubbles; Introduction Microbubbles (MBs), that is

Materials nanoarchitectonics at two-dimensional liquid interfaces

• Katsuhiko Ariga,
• Michio Matsumoto,
• Taizo Mori and
• Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

• the balance between two competitive interactions, the phase separation of fluorocarbons and hydrocarbons and the attractive interaction between guanidiuium and carboxylate, to fabricate nanoscopic domains within a two-dimensional mixture of hydrocarbon guanidinium and fluorocarbon carboxylic acid [198

• consisting of two blocks, a fluorocarbon block and a hydrocarbon block, in a single chain) at the air–water interface is discussed. They expect possible applications of these two-dimensional nanodomains in sensors, nanoelectronics and nanophotonics. Pellerin, Bazuin, and co-workers investigated the

Rapid, ultraviolet-induced, reversibly switchable wettability of superhydrophobic/superhydrophilic surfaces

• Yunlu Pan,
• Wenting Kong,
• Bharat Bhushan and
• Xuezeng Zhao

Beilstein J. Nanotechnol. 2019, 10, 866–873, doi:10.3762/bjnano.10.87

• has a strong oxidizing property. In addition, the end of the fluorocarbon chains were changed into –OH groups which could decrease the WCA faster with increasing UV illumination time. It can thus be inferred that the oxidization of PFOS is due to UV illumination and the photocatalytic effect of TiO2

A comparison of tarsal morphology and traction force in the two burying beetles Nicrophorus nepalensis and Nicrophorus vespilloides (Coleoptera, Silphidae)

• Liesa Schnee,
• Benjamin Sampalla,
• Josef K. Müller and
• Oliver Betz

Beilstein J. Nanotechnol. 2019, 10, 47–61, doi:10.3762/bjnano.10.5

• s in Antispread E2 (E2/200 Fluorocarbon 60, Horb-Ahldorf, Germany) solution and air-dried for 24 h at room temperature, a method used previously [14][55]. All treated surfaces were controlled by means of static contact angle measurements by using five 4 µL droplets of doubly distilled water. Images

Nanoporous silicon nitride-based membranes of controlled pore size, shape and areal density: Fabrication as well as electrophoretic and molecular filtering characterization

• Axel Seidenstücker,
• Stefan Beirle,
• Fabian Enderle,
• Paul Ziemann,
• Othmar Marti and
• Alfred Plettl

Beilstein J. Nanotechnol. 2018, 9, 1390–1398, doi:10.3762/bjnano.9.131

• of the resulting membranes, may deteriorate their permeability. It turned out, however, that fluorocarbon surface contaminations could be removed by annealing in ultra-high vacuum (10−8 mbar) at 500 °C for 120 min (details are given in Supporting Information File 1). For membrane C with the smallest

Response under low-energy electron irradiation of a thin film of a potential copper precursor for focused electron beam induced deposition (FEBID)

• Leo Sala,
• Iwona B. Szymańska,
• Céline Dablemont,
• Anne Lafosse and
• Lionel Amiaud

Beilstein J. Nanotechnol. 2018, 9, 57–65, doi:10.3762/bjnano.9.8

• be distinguished here at 192 meV, neither can the ν(C–CN) stretching at 115–120 meV. The signature of ν(CC) stretching at 130 meV cannot be unambiguously attributed to amine ligands as the fluorocarbon ligands have signatures in the same range. Only the shoulder at 180 meV, attributed to δ(CH2) and δ

• detection of mass 119 and mass 69, which are attributed to CF3CF2 and CF3 radicals, respectively (Figure 3, curves d and e). The detection of the entire C3F7COO ligand and C3F7 fragments was not possible due to the low sensitivity of the mass spectrometer to high-mass fragments. Fluorocarbon desorption

Advances and challenges in the field of plasma polymer nanoparticles

• Andrei Choukourov,
• Pavel Pleskunov,
• Daniil Nikitin,
• Valerii Titov,
• Artem Shelemin,
• Mykhailo Vaidulych,
• Anna Kuzminova,
• Pavel Solař,
• Jan Hanuš,
• Jaroslav Kousal,
• Ondřej Kylián,
• Danka Slavínská and
• Hynek Biederman

Beilstein J. Nanotechnol. 2017, 8, 2002–2014, doi:10.3762/bjnano.8.200

• plasma polymerization of volatile monomers or via radio frequency (RF) magnetron sputtering of conventional polymers. The formation of hydrocarbon, fluorocarbon, silicon- and nitrogen-containing plasma polymer nanoparticles as well as core@shell nanoparticles based on plasma polymers is discussed with a

• the fact that close attention was paid to silane-based plasmas [9][11][12][13][14][15][16][17][18][19][20][21][22] followed by hydrocarbon [16][17][23][24][25][26][27] and fluorocarbon plasmas [27][28][29][30][31][32][33][34][35][36]. Gas aggregation sources In recent years, scientific interest spread

• -resolution C 1s XPS peaks are shown for a number of chosen NPs. Starting from C/H plasma polymers (Figure 2a), the chemistry of the resulting NPs may range from nitrogen-containing (Figure 2b) to fluorocarbon (Figure 2c) plasma polymers, to cite just a few, in which multitudes of chemical bonding

Nanostructured superhydrophobic films synthesized by electrodeposition of fluorinated polyindoles

• Gabriela Ramos Chagas,
• Thierry Darmanin and
• Frédéric Guittard

Beilstein J. Nanotechnol. 2015, 6, 2078–2087, doi:10.3762/bjnano.6.212

• (such as thiophene, pyrrole or 3,4-ethylenedioxythiophene) [27][28][29][30] is probably the most important parameter. Then, the polymer can also be controlled by introducing hydrophobic/hydrophilic substituents or dopant agents [17][18][27][28][29][30]. In most of the cases, fluorocarbon or hydrocarbon

• chains were used to reach superhydrophobic properties. Here, we report for the first time the formation of superhydrophobic properties from indole derivatives. Nine novel indole monomers substituted by fluorocarbon chains of different length (C4F9, C6F13 and C8F17) and in different positions (4-, 5- and

• 6-position of indole) were synthesized and electropolymerized (Scheme 1). We report the influence of the fluorocarbon chain length and the substituent position on the surface morphology and hydrophobicity. Results and Discussion Electrodeposition In order to develop structured polymeric films, the

Large-scale atomistic and quantum-mechanical simulations of a Nafion membrane: Morphology, proton solvation and charge transport

• Pavel V. Komarov,
• Pavel G. Khalatur and
• Alexei R. Khokhlov

Beilstein J. Nanotechnol. 2013, 4, 567–587, doi:10.3762/bjnano.4.65

• conductivity (5 × 10−2 S/cm at 23 °C) [2]. For a long time, Nafion is regarded as a benchmark material in PEFCs due to its excellent combination of conductivity and chemical stability [2][3][4]. Nafion is a copolymer composed of the fluorocarbon backbone with attached side chains terminated with sulfonic

Hierarchically structured superhydrophobic flowers with low hysteresis of the wild pansy (Viola tricolor) – new design principles for biomimetic materials

• Anna J. Schulte,
• Damian M. Droste,
• Kerstin Koch and
• Wilhelm Barthlott

Beilstein J. Nanotechnol. 2011, 2, 228–236, doi:10.3762/bjnano.2.27

• min at room temperature. Antispread is a commercially available Fluorocarbon 60 for surface hydrophobization. It forms approximately 40 nm thin layers on the substrate (producer information) and causes no additional nano-structuring on the replica surfaces. A smooth surface, dip-coated with Antispread