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Search for "organic solvent" in Full Text gives 66 result(s) in Beilstein Journal of Nanotechnology.
Nanocarrier systems loaded with IR780, iron oxide nanoparticles and chlorambucil for cancer theragnostics
Beilstein J. Nanotechnol. 2024, 15, 180–189, doi:10.3762/bjnano.15.17
- (FTIR) results were displayed in the Supporting Information File 1 (Supplementary data 1) and Figure S1. Formulation of nanoparticles F127-folate@PLGA/IO/CHL/IR780 and others In 2 mL of DCM, 20 mg of PLGA, 40 μg of IO, 2 mg of CHL, and 0.1 mg of IR780 were mixed. The organic solvent was then added to
N-Heterocyclic carbene-based gold etchants
Beilstein J. Nanotechnol. 2023, 14, 865–871, doi:10.3762/bjnano.14.71
- , in turn, can promote surface mobility of gold across a sample, allowing for the formation of herringbone structures, pits, and step edges [23][24][25]. Other work has shown that tetrahydrofuran (THF), an organic solvent used for SAM formation [1][2][4][6][7][8], can roughen the gold surface at atomic
- test solution in 20 mL glass vials. Vials were capped and left at room temperature in a fume hood for the allotted time of the experiment. The tokens were then removed from the test solution and rinsed in the respective organic solvent of the test solution before drying under a stream of 99.998
Carbon nanotube-cellulose ink for rapid solvent identification
Beilstein J. Nanotechnol. 2023, 14, 535–543, doi:10.3762/bjnano.14.44
- analysis for these systems. The sensor was able to distinguish the three cases, demonstrating both robustness and sensitiveness of the MFC/MWCNT composite as a low-concentration oil sensor. Organic solvent recognition The MFC/MWCNT transducer was also evaluated for the recognition of organic solvents. The
Liquid phase exfoliation of talc: effect of the medium on flake size and shape
Beilstein J. Nanotechnol. 2023, 14, 68–78, doi:10.3762/bjnano.14.8
- talc, we also added less talc powder to the solution, to keep the ratio constant. We also tested the nonionic surfactant Triton-X100. Besides the absence of charged groups, compared to SC, Triton-X100 is also less expensive, although not environmentally friendly either. Finally, we tested an organic
- solvent, namely butanone. Butanone is volatile and has a boiling point of approximately 80 °C, making it the easiest medium to remove after exfoliation of the four employed here. Also, unlike other organic solvents commonly used in LPE, for example, NMP or dimethylformamide (DMF), that have a higher
Antibacterial activity of a berberine nanoformulation
Beilstein J. Nanotechnol. 2022, 13, 641–652, doi:10.3762/bjnano.13.56
- the preparation of berberine (BBR) in nanoformulation to enhance its solubility and increase its antibacterial effectiveness against hospital-acquired infections. BBR nanoparticles (BBR NPs) were formed by antisolvent precipitation (ASP) using glycerol as a safe organic solvent. UV–vis absorption
Interfacial nanoarchitectonics for ZIF-8 membranes with enhanced gas separation
Beilstein J. Nanotechnol. 2022, 13, 313–324, doi:10.3762/bjnano.13.26
- -methylimidazole/1-octanol solution were prepared to optimize the ZIF-8 membrane structure. Since 1-octanol is immiscible with water, ZIF-8 formation can be confined to the interface between water and the organic solvent. Prior to ZIF-8 crystal growth, the pretreated α-Al2O3 disk was immersed into the zinc nitrate
A photonic crystal material for the online detection of nonpolar hydrocarbon vapors
Beilstein J. Nanotechnol. 2022, 13, 127–136, doi:10.3762/bjnano.13.9
- application of polydimethylsiloxane. In some experiments, it was possible to detect toluene vapors with a concentration of ca. 0.3 mg/m3 using a sensor with a sensitive layer thickness about 20 μm. Effects of organic solvent mixtures on the sensor Of particular interest is the detection of analytes in complex
Progress and innovation of nanostructured sulfur cathodes and metal-free anodes for room-temperature Na–S batteries
Beilstein J. Nanotechnol. 2021, 12, 995–1020, doi:10.3762/bjnano.12.75
- and can be distinguished in aqueous and organic solvent routes [57]. The so-called Weimarn sols are produced by dissolution of sulfur powder in ethanol or acetone-based solutions and the subsequent precipitation of sub-micrometer-size particles in water [57]. The so-called Raffo sols are obtained by a
Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications
Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64
Electrokinetic characterization of synthetic protein nanoparticles
Beilstein J. Nanotechnol. 2020, 11, 1556–1567, doi:10.3762/bjnano.11.138
- synthetic protein nanoparticles SPNPs were synthesized using a modification of the well-established EHD co-jetting technique [51][52][53]. Generally, SPNPs are generated by dissolving a protein of interest and a copolymer of choice into a co-solvent system of water and an organic solvent, such as ethanol or
Role of redox-active axial ligands of metal porphyrins adsorbed at solid–liquid interfaces in a liquid-STM setup
Beilstein J. Nanotechnol. 2020, 11, 1264–1271, doi:10.3762/bjnano.11.110
- single-molecule level, employing scanning tunneling microscopy (STM) [7][8][9]. Since our aim was to stay as close as possible to the laboratory conditions at which catalysis takes place (typically in an organic solvent under ambient conditions), we carried out our STM studies at a solid–liquid interface
Correction: Biocatalytic oligomerization-induced self-assembly of crystalline cellulose oligomers into nanoribbon networks assisted by organic solvents
Beilstein J. Nanotechnol. 2020, 11, 370–371, doi:10.3762/bjnano.11.27
- ; oligomerization-induced self-assembly; organic solvent; The originally published Figure 4 contains wrong units on the y axes of both depicted CD spectra. The corrected Figure 4 is given below. Corrected Figure 4 of the original publication.
Phase inversion-based nanoemulsions of medium chain triglyceride as potential drug delivery system for parenteral applications
Beilstein J. Nanotechnol. 2020, 11, 213–224, doi:10.3762/bjnano.11.16
- as the flexibility of the nanoparticles [6][7][8][9]. Shock dilution with ice-cold water during phase inversion of the emulsion gives the opportunity to produce nanocapsules without the use of any potentially toxic organic solvent at low energy cost [10][11]. The choice and the amount of the
Synthesis and acetone sensing properties of ZnFe2O4/rGO gas sensors
Beilstein J. Nanotechnol. 2019, 10, 2516–2526, doi:10.3762/bjnano.10.242
- which are composed of small nanoparticles instead of nanosheets. This deformation of the self-assembled structure of the nanosheets may be ascribed to the introduction of more water to the organic solvent when increasing the volume of the aqueous GO dispersion [37][38] or to the low mass fraction of rGO
- dispersion of GO to the organic solvent, in which the reaction occurrs, affects the formation of the ZnFe2O4 hollow spheres [17][39], resulting in a limitation of surface reactions. In addition, as shown in Figure 8b, the response of the sensors to 25–100 ppm acetone was also probed employing the same
Microfluidics as tool to prepare size-tunable PLGA nanoparticles with high curcumin encapsulation for efficient mucus penetration
Beilstein J. Nanotechnol. 2019, 10, 2280–2293, doi:10.3762/bjnano.10.220
- and 0.1 equiv of 4-(dimethylamino)pyridine (DMAP), also in dried DCM, were added. The reaction was carried out at room temperature for 24 h. It was quenched by the addition of 1 mL of water. The organic solvent was removed with a rotational evaporator, and the remaining water was discarded. An
- precipitate and form NPs. The PLGA NP sample was collected from the outlet of the channel. Then the PLGA NP suspension was left overnight under stirring to evaporate the organic solvent. Finally, the PLGA NP suspension was washed twice using centrifugation (30 min at 10,000g at 4 °C) and redispersed with
Incorporation of doxorubicin in different polymer nanoparticles and their anticancer activity
Beilstein J. Nanotechnol. 2019, 10, 2062–2072, doi:10.3762/bjnano.10.201
- evaporation of the organic solvent, PLA and PLGA nanoparticles were purified three times by centrifugation at 21,000 g for 15 min and re-dispersion in purified water. PLGA-PEG nanoparticles were purified three times by centrifugation at 30,000g for 60 min and re-dispersion in purified water. Determination of
Synthesis and potent cytotoxic activity of a novel diosgenin derivative and its phytosomes against lung cancer cells
Beilstein J. Nanotechnol. 2019, 10, 1933–1942, doi:10.3762/bjnano.10.189
- . Preparation of phytosomes DiP and P2P were prepared with lecithin in the prescribed ratio (1:1, molar ratio) by the thin film hydration method. First, lecithin and Di/P2 were dissolved in chloroform at a molar ratio of 1:1. The organic solvent was evaporated using a rotary evaporator to produce a thin lipid
Biocatalytic oligomerization-induced self-assembly of crystalline cellulose oligomers into nanoribbon networks assisted by organic solvents
Beilstein J. Nanotechnol. 2019, 10, 1778–1788, doi:10.3762/bjnano.10.173
- ; nanoribbon networks; oligomerization-induced self-assembly; organic solvent; Introduction Nanoarchitectonics is an emerging concept based on nanotechnology and other scientific fields, such as supramolecular chemistry, for constructing functional materials and systems in a bottom-up manner with the
- reports [31][42]. After the reaction, colorless solid products were observed in the solutions with relatively low organic solvent concentrations, suggesting the successful synthesis of water-insoluble cellulose oligomers under those conditions (Figure 2). Remarkably, the reaction mixtures with 10–20 vol
- % DMSO and 10 vol % EtOH were found to be in gel states after the reaction (Figure 2, photographs with yellow background). The apparent turbidity of the reaction mixtures decreased with increasing organic solvent concentrations for each organic solvent species (Figure 2). The observations were simply due
Flexible freestanding MoS2-based composite paper for energy conversion and storage
Beilstein J. Nanotechnol. 2019, 10, 1488–1496, doi:10.3762/bjnano.10.147
- as amorphous carbon [8], carbon nanofibers [7], carbon nanotubes [8] and graphene [9]) has already been demonstrated to be quite attractive. Typically, the electrodes are prepared by mixing these composites as active material with a polymeric binder, conductive carbon and an organic solvent to form a
Photoactive nanoarchitectures based on clays incorporating TiO2 and ZnO nanoparticles
Beilstein J. Nanotechnol. 2019, 10, 1140–1156, doi:10.3762/bjnano.10.114
- , taking place during the heterocoagulation of hydrolyzed alkoxides previously incorporated in the surfactant–clay interface, as it was first reported by Letaïef and Ruiz-Hitzky [126][127]. In the same way, organoclays dispersed in an organic solvent can facilitate the incorporation of already formed metal
Structural and optical properties of penicillamine-protected gold nanocluster fractions separated by sequential size-selective fractionation
Beilstein J. Nanotechnol. 2019, 10, 955–966, doi:10.3762/bjnano.10.96
- size distribution in order to obtain their representative photophysical properties. As shown in Figure 1, SSSP was used to fractionation the crude AuNCs into four AuNCs fractions with different sizes. Briefly, organic solvent (acetone) was gradually added in an aqueous solution of AuNCs, whereby the
Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
Beilstein J. Nanotechnol. 2019, 10, 654–665, doi:10.3762/bjnano.10.65
- onto different kinds of substrates using the Langmuir–Blodgett (LB) or Langmuir–Schaefer (LS) deposition methods. Furthermore, the use of these films for CO2 sensing [21][26] or organic solvent nanofiltration [27] has been investigated. Additionally, we have also explored the fabrication of mixed LB
Enhanced antineoplastic/therapeutic efficacy using 5-fluorouracil-loaded calcium phosphate nanoparticles
Beilstein J. Nanotechnol. 2018, 9, 2499–2515, doi:10.3762/bjnano.9.233
- uniformly dispersed in oil, forming a water-in-oil (W/O) microemulsion system [24]. Highly monodisperse, stable, size controllable and chemically reproducible nanoparticles can be formed by adopting the aforementioned method. The anionic surfactant (AOT) in the organic solvent forms the oil dispersion media
Block copolymers for designing nanostructured porous coatings
Beilstein J. Nanotechnol. 2018, 9, 2332–2344, doi:10.3762/bjnano.9.218
- methods, the principal critical step is the removal of the porogen without losing the designed nanostructure organization [4]. In general, this procedure is a very complex route that requires either strong acids/bases or selective organic solvent washing (not easy to handle or environmentally friendly
Synthesis of rare-earth metal and rare-earth metal-fluoride nanoparticles in ionic liquids and propylene carbonate
Beilstein J. Nanotechnol. 2018, 9, 1881–1894, doi:10.3762/bjnano.9.180
- measurements for all microwave-assisted thermal NP syntheses. As reaction media we used the fluorous IL 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF4]) and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIm][NTf2]) and the organic solvent propylene carbonate (PC) (Figure S3
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