Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

• Sepand Tehrani Fateh,
• Lida Moradi,
• Elmira Kohan,
• Michael R. Hamblin and
• Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

Nickel nanoparticle-decorated reduced graphene oxide/WO₃ nanocomposite – a promising candidate for gas sensing

• Ilka Simon,
• Alexandr Savitsky,
• Rolf Mülhaupt,
• Vladimir Pankov and
• Christoph Janiak

Beilstein J. Nanotechnol. 2021, 12, 343–353, doi:10.3762/bjnano.12.28

• 99.996 vol %) atmosphere by using standard Schlenk techniques. Samples were prepared and stored in a MBraun Glovebox. Solvents (acetonitrile, n-hexane, and methylene chloride) were dried by using a MBraun solvent purification system or distilled (1-methylimidazole and 1-chlorobutane) and stored over 4 Å

Interfacial charge transfer processes in 2D and 3D semiconducting hybrid perovskites: azobenzene as photoswitchable ligand

• Nicole Fillafer,
• Tobias Seewald,
• Lukas Schmidt-Mende and
• Sebastian Polarz

Beilstein J. Nanotechnol. 2020, 11, 466–479, doi:10.3762/bjnano.11.38

• brown solid precipitated, which was filtered, dissolved in DCM and washed with purified water for three times. The organic phase was dried over MgSO4 and the solvent was removed. To remove excess dibromoalkane the solid was washed with n-hexane and dried under reduced pressure. The product was

Synthesis of nickel/gallium nanoalloys using a dual-source approach in 1-alkyl-3-methylimidazole ionic liquids

• Ilka Simon,
• Julius Hornung,
• Juri Barthel,
• Jörg Thomas,
• Maik Finze,
• Roland A. Fischer and
• Christoph Janiak

Beilstein J. Nanotechnol. 2019, 10, 1754–1767, doi:10.3762/bjnano.10.171

• ]. For example, the reaction of Ni(COD)2 with four equivalents of GaCp* in n-hexane led to the formation of Ni(GaCp*)4 clusters [56]. Thus, the formation of such intermetallic clusters in ionic liquids is a working hypothesis for the required dispersion time of 24 h. To validate the formation of “large

• oxidation, that is, moisture and oxygen (air), all experiments were carried out in a purified argon or nitrogen atmosphere by using standard Schlenk techniques. Samples were prepared and stored in an MBraun Glovebox. Solvents (acetonitrile, n-hexane, and methylene chloride) were dried by using an MBraun

Enhanced antineoplastic/therapeutic efficacy using 5-fluorouracil-loaded calcium phosphate nanoparticles

• Shanid Mohiyuddin,
• Saba Naqvi and
• Gopinath Packirisamy

Beilstein J. Nanotechnol. 2018, 9, 2499–2515, doi:10.3762/bjnano.9.233

• synthesis procedure involved the use of the surfactant AOT in a nonpolar solvent. The synthesis procedure is schematically presented in Figure 1A. Briefly, in two separate parallel reaction systems, the precursor mixtures were stirred, where each was provided with the surfactant (0.1 M AOT) dissolved in n

• -hexane. The first reaction system (reverse micelle A) consisted of 0.1 M AOT, which self-assembled with 3.8 mM calcium chloride when the calcium precursor was added along with 200 µL of aqueous soluble 5-FU (10 mg/mL). The second reaction system (reverse micelle B) was comprised of 0.1 M AOT with 0.4 mM

PTFE-based microreactor system for the continuous synthesis of full-visible-spectrum emitting cesium lead halide perovskite nanocrystals

• Chengxi Zhang,
• Weiling Luan,
• Yuhang Yin and
• Fuqian Yang

Beilstein J. Nanotechnol. 2017, 8, 2521–2529, doi:10.3762/bjnano.8.252

• rhodamine 6G (QY = 95% in ethanol [40]). HRTEM images were taken on a TEM (JEM-2100F, Jeol, USA) operated at 200 kV, and the sample was prepared by dipping an amorphous carbon–copper grid in a dilute n-hexane dispersed QD solution. The sample was then left to evaporate at room temperature. X-ray diffraction

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

• a result of plasma polymerization of n-hexane and hexamethyldisiloxane (HMDSO) [53] or as a result of RF magnetron sputtering of nylon [54] and poly(tetrafluoroethylene) (PTFE) [55]. One can readily judge the diversity of shape and morphology of the NPs with diameters ranging from tens to hundreds

• shows the NPs produced by plasma polymerization from the mixtures of n-hexane with Ar and with nitrogen, and for comparison Figure 5c shows the NPs produced by RF magnetron sputtering of nylon in the Ar/N2 mixture [54]. The chemical composition of these NPs is shown in Figure 6a in terms of FTIR spectra

• of the plasma and that amino groups overwhelmingly reported for plasma polymers are actually other nitrogen-containing functionalities [70]. The data obtained for the NPs confirm that plasma polymerization of n-hexane in N2 does not lead to the substantial retention of amines as can be seen from the

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

• soluble in solvents such as CH2Cl2, CHCl3, MeCN, DMSO, DMF it is possible to follow certain “criteria of purity” established by White, Bachmann and Burnham [21]. Thus, analytical amounts of these (metallo)porphyrins were chromatographed by thin layer chromatography (TLC) on alumina by using CHCl3/n-hexane

• precipitated with n-hexane. That procedure is referred to in the following as “re-precipitation”. Data for 2a 2 (0.200 g, 0.222 mmol), ZnCl2 (0.0909 g, 0.667 mmol). Yield: 0.156 g (73% based on 2); purple solid. Anal. calcd for C56H48N8O4Zn (962.44): C, 69.88; H, 5.03; N, 11.64; found: C, 69.5; H, 5.0; N, 11.5

Fiber optic sensors based on hybrid phenyl-silica xerogel films to detect n-hexane: determination of the isosteric enthalpy of adsorption

• Jesús C. Echeverría,
• Ignacio Calleja,
• Paula Moriones and
• Julián J. Garrido

Beilstein J. Nanotechnol. 2017, 8, 475–484, doi:10.3762/bjnano.8.51

• , respectively. The films were synthesized by the sol–gel method and affixed to the end of optical fibers by the dip-coating technique. Fourier transform infrared spectroscopy, N2 adsorption–desorption at 77 K and X-ray diffraction analysis were used to characterize the xerogels. At a given pressure of n-hexane

• magnitude of the isosteric enthalpy of n-hexane increased with the relative response and reached a plateau that stabilized at approximately −31 kJ mol−1 for Ph40 and Ph50 and at approximately −37 kJ mol−1 for Ph30. This indicates that the adsorbate–adsorbent interaction was dominant at lower relative

• pressure and condensation of the adsorbate on the mesopores was dominant at higher relative pressure. Keywords: fiber optic sensors; isosteric enthalpy of adsorption; n-hexane; phenyl-silica; xerogel films; Introduction Fiber optic chemical sensors (FOCSs) that employ sensitive films for the detection of

Tailoring bifunctional hybrid organic–inorganic nanoadsorbents by the choice of functional layer composition probed by adsorption of Cu²⁺ ions

• Veronika V. Tomina,
• Inna V. Melnyk,
• Yuriy L. Zub,
• Aivaras Kareiva,
• Miroslava Vaclavikova,
• Gulaim A. Seisenbaeva and
• Vadim G. Kessler

Beilstein J. Nanotechnol. 2017, 8, 334–347, doi:10.3762/bjnano.8.36

• , the maximum of this band is at about 13000–14000 cm−1. We measured adsorption isotherms of n-hexane, acetonitrile and water (Figure S10, Supporting Information File 1) to compare the properties of silica nanoparticles with fluorine (see Supporting Information File 1) and amino/perfluoroalkyl

• -containing bifunctional surface layers. In the case of bifunctional sample NF2, at low fillings, the three vapor adsorption isotherms of n-hexane, acetonitrile, and water coincide. However, with increasing P/Ps values, motre acetonitrile is adsorbed compared to water and n-hexane. During the synthesis, the

• ratio of amino/fluorine-containing groups was 1:1. Acetonitrile is electrostatically repelled from amino groups of the surface [44]. However, in spite of this, its sorption volume is similar to that of water and n-hexane. Discussion Our interest was to identify the molecular mechanisms of how the

Surface roughness rather than surface chemistry essentially affects insect adhesion

• Matt W. England,
• Tomoya Sato,
• Makoto Yagihashi,
• Atsushi Hozumi,
• Stanislav N. Gorb and
• Elena V. Gorb

Beilstein J. Nanotechnol. 2016, 7, 1471–1479, doi:10.3762/bjnano.7.139

• maintained at 180 °C for ODS and 150 °C for FAS17. Finally, the treated samples were rinsed with n-hexane, then water, and finally blown dry with a stream of N2. Besides these two flat monolayer-covered surfaces, we also prepared a smooth alkylsilane (C10)-derived hybrid film using conventional co-hydrolysis

Antimicrobial nanospheres thin coatings prepared by advanced pulsed laser technique

• Alina Maria Holban,
• Valentina Grumezescu,
• Alexandru Mihai Grumezescu,
• Bogdan Ştefan Vasile,
• Roxana Truşcă,
• Rodica Cristescu,
• Gabriel Socol and
• Florin Iordache

Beilstein J. Nanotechnol. 2014, 5, 872–880, doi:10.3762/bjnano.5.99

• Polylactic acid (PLA), polyvinyl alcohol (PVA), chitosan (CS), eugenol (EUG), FeCl3, FeSO4·7H2O, NH4OH (25%), chloroform and n-hexane were purchased from Sigma-Aldrich. Preparation of magnetite nanostructures A well-known procedure described in our previous work was used to synthesize the magnetite

• ) PLA–CS-Fe3O4@EUG microspheres in n-hexane. The radiation of a KrF* (λ = 248 nm, τFWHM = 25 ns) COMPexPro 205 Lambda Physics-Coherent excimer laser source model impinged the frozen targets at a laser fluence of 300–500 mJ/cm2 and a repetition rate of 15 Hz. In order to assure the reproducibility of the

Optimization of solution-processed oligothiophene:fullerene based organic solar cells by using solvent additives

• Gisela L. Schulz,
• Marta Urdanpilleta,
• Roland Fitzner,
• Eduard Brier,
• Elena Mena-Osteritz,
• Egon Reinold and
• Peter Bäuerle

Beilstein J. Nanotechnol. 2013, 4, 680–689, doi:10.3762/bjnano.4.77

• 60, mesh 0.063–0.2 μm, were used for column chromatography. High performance liquid chromatography was performed on a Hitachi instrument equipped with a UV–vis detector L-7420, columns (Nucleosil 100-5 NO2 with a pore size of 100 Å) from Machery-Nagel using a dichlormethane/n-hexane mixture (40:60

• heated under argon at 80 °C for 72 h. After cooling, the resulting precipitate was filtered off and washed repeatedly with methanol and n-hexane. The DMF filtrate was then concentrated and stored at 7 °C and the resulting precipitate was filtered off and washed with methanol and n-hexane and combined

Extended X-ray absorption fine structure of bimetallic nanoparticles

• Carolin Antoniak

Beilstein J. Nanotechnol. 2011, 2, 237–251, doi:10.3762/bjnano.2.28

• -hexane with surfactants, precipitated out and centrifuged once again. This can be repeated several times, until a stable dispersion of nanoparticles in n-hexane is obtained. The nanoparticles can be brought onto a naturally oxidised Si substrate using the spin coating technique, dip coating or just by

• , thus providing a route to synthesise nanoparticles of a chemically disordered FexPt1−x alloy surrounded by the surfactants. After cooling to room temperature, the particles were precipitated by adding ethanol and separated by centrifugation. After this procedure, the particles were dispersed in n