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Search for "SDS" in Full Text gives 76 result(s) in Beilstein Journal of Nanotechnology.
An iridescent film of porous anodic aluminum oxide with alternatingly electrodeposited Cu and SiO2 nanoparticles
Beilstein J. Nanotechnol. 2019, 10, 735–745, doi:10.3762/bjnano.10.73
- structural colors with high stabilities for a wide range of applications such as colorful case shells of electronic devices, automobile bodies, and anti-counterfeiting labels. Experimental Materials The 6063 aluminum alloy was adopted as substrate. Tetraethoxysilane and sodium dodecyl sulfate (SDS, used as a
- min and then thoroughly washed with DI water. Before stored for later use, the sample was blow-dried. The alkaline solution was composed of NaOH (40.0 g), SDS (1.0 g) and DI water (1.0 L), while the acidic solution consisted of sulfuric acid solution (40%) and nitric acid solution (10%). Anodization
Ceria/polymer nanocontainers for high-performance encapsulation of fluorophores
Beilstein J. Nanotechnol. 2019, 10, 522–530, doi:10.3762/bjnano.10.53
- , ≥99.0%) acrylic acid (AA, Sigma-Aldrich, 99%), hexadecane (Sigma-Aldrich, 99.0%), tetrahydrofuran (THF, Sigma-Aldrich, ≥99.9%), cerium(III) nitrate hexahydrate (Sigma-Aldrich, 99.99%), sodium hydroxide (Sigma-Aldrich, ≥97.0%), ammonia solution (28% aqueous solution, VWR), sodium dodecyl sulfate (SDS
- under argon atmosphere [sample NC(Ar)] by free-radical miniemulsion polymerization [46]. The continuous phase contains SDS (30 mg) and demineralized water (30 g). The disperse phase contains styrene (1.8 g) and acrylic acid (0.2 g) as monomers, hexadecane (4 g) with the fluorescent dye TDI and the
Colloidal chemistry with patchy silica nanoparticles
Beilstein J. Nanotechnol. 2018, 9, 2989–2998, doi:10.3762/bjnano.9.278
- %), methacryloxypropylyltriethoxysilane (MPS, Aldrich, 98%), (3-aminopropyl)triethoxysilane (APTES, Aldrich, 99%), triethylamine (TEA, Sigma-Aldrich, 99%), sodium persulfate (Sigma-Aldrich, 99%), Symperonic® NP30 (Aldrich), sodium dodecylsulfate (SDS, Sigma-Aldrich, >90%), tetraethoxysilane (TEOS, Sigma-Aldrich, 99%), ammonia (30% in
- water, SDS), tin tetrachloride (SnCl4, Sigma-Aldrich, >99%), hydrochloric acid (37%, Sigma-Aldrich), ethylenediamine (Fluka, 99.5%), gold(III) chloride trihydrate (HAuCl4·3H2O, Sigma-Aldrich), trisodium citrate dihydrate (NaCit) (Na3C6H5O7·2H2O, Sigma-Aldrich, 99%), O-[2-(3-mercaptopropionylamino)ethyl
- nanometer) and a surfactant mixture (3 g·L−1) of Symperonic® NP30 and SDS. The polymerization was performed at 70 °C for 6 h. Regrowth of the silica core We regrew the silica cores to create dimples using a method that we had reported previously [19]. We prepared a mixture of 227.5 mL ethanol and 17.5 mL
In situ characterization of nanoscale contaminations adsorbed in air using atomic force microscopy
Beilstein J. Nanotechnol. 2018, 9, 2925–2935, doi:10.3762/bjnano.9.271
- sodium dodecyl sulfate (SDS), alcohols (e.g., ethanol) or acetone [24], ultraviolet (UV) [25] and ozone treatment [26], imaging of gratings [27][28], heating to evaporate contaminants [29][30], argon bombardment and even ultrasound, to much more aggressive methods, such as cleaning in piranha solution
Size-selected Fe3O4–Au hybrid nanoparticles for improved magnetism-based theranostics
Beilstein J. Nanotechnol. 2018, 9, 2684–2699, doi:10.3762/bjnano.9.251
- water (A) and 2% agarose (B). The r2 values are determined by the slopes of the linear fits. C) r2 values as a function of NP size in water and agarose. The SDs are smaller than the symbol size. MPH experiments (765 kHz, 30 mT). The heating curves of MNP-6 and MNP-25 (3.6 mg·mL−1 Fe) in water (A) and
Artifacts in time-resolved Kelvin probe force microscopy
Beilstein J. Nanotechnol. 2018, 9, 1272–1281, doi:10.3762/bjnano.9.119
- values used for the cantilever parameters in the simulations reported here. Acknowledgements SDS acknowledges support from the US Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0018041.
Optimisation of purification techniques for the preparation of large-volume aqueous solar nanoparticle inks for organic photovoltaics
Beilstein J. Nanotechnol. 2018, 9, 649–659, doi:10.3762/bjnano.9.60
- processes: centrifugal and crossflow ultrafiltration. The impact of purification is twofold: firstly, removal of excess sodium dodecyl sulfate (SDS) surfactant from the ink and, secondly, concentration of the photoactive components in the ink. The removal of SDS was studied in detail both by a UV–vis
- spectroscopy-based method and by surface tension measurements of the nanoparticle ink filtrate; revealing that centrifugal ultrafiltration removed SDS at a higher rate than crossflow ultrafiltration even though a similar filter was applied in both cases (10,000 Da Mw cut-off). The influence of SDS
- concentration on the aqueous solar nanoparticle (ASNP) inks was investigated by monitoring the surface morphology/topography of the ASNP films using atomic force microscopy (AFM) and scanning electron microscopy (SEM) and photovoltaic device performance as a function of ultrafiltration (decreasing SDS content
Fabrication of carbon nanospheres by the pyrolysis of polyacrylonitrile–poly(methyl methacrylate) core–shell composite nanoparticles
Beilstein J. Nanotechnol. 2017, 8, 1897–1908, doi:10.3762/bjnano.8.190
- . Methyl methacrylate (MMA) was distilled at a reduced pressure before use to remove the inhibitor. Sodium dodecyl sulphate (SDS) and methylene blue (MB) were used without further purification. 2,2'-azobisisobutyronitrile (AIBN) was used as the initiator and purified via recrystallization in methanol
- mg of SDS and 120 mL of deionized water were placed into a flask, and this was followed by purging with nitrogen under stirring for 20 min to remove oxygen. The solution was then heated to 67 °C and maintained at that temperature. 15 mL of AN was fed continuously at a rate of 15 mL/h. After the AN
- surfactant content [39]. Here, a PAN nanolatex with an average diameter
of 96 nm and a polydispersity index of 0.03 at an AN concentration of 100 g/L (based on the volume of water) and an SDS content of 3.3% (based on the weight of monomers) was firstly fabricated by the novel emulsion polymerization
A biofunctionalizable ink platform composed of catechol-modified chitosan and reduced graphene oxide/platinum nanocomposite
Beilstein J. Nanotechnol. 2017, 8, 1508–1514, doi:10.3762/bjnano.8.151
- )), followed by three washes in distilled water. Finally, the Cy3-labelled PCR product (amplified complementary DNA extracted from GBS positive (GBS+) clinical isolates or non-complementary negative control) in hybridization buffer (5× saline-sodium citrate buffer (SSC), 0.1% SDS, 10% formamide) was incubated
- with functionalized ink structures for 1 h, followed by three washes with wash buffer (1X SSC, 0.1% SDS). The slides were allowed to dry in air and were imaged using Leica TCS SP8 confocal microscope. The obtained 8-bit images were analyzed using Fiji. Representative TEM micrographs of: A) final rGO–Pt
Calcium fluoride based multifunctional nanoparticles for multimodal imaging
Beilstein J. Nanotechnol. 2017, 8, 1484–1493, doi:10.3762/bjnano.8.148
- into 96-well cell-culture plates at a number of 1.47·104 cells per square centimeter. Dilutions of CaF2:(Tb3+,Gd3+) NP samples in the concentration range of 0.5–1 mg·mL−1 in DMEM with 10% FCS were added in triplicate. Wells containing 10% sodium dodecyl sulfate (SDS) and untreated hdF in DMEM with 10
- to hdF. 10% SDS was used for the positive control. All samples have cell viabilities over 80% and therefore the NPs can be classified as non-cytotoxic (n = 3). Representative outcome of an ICP-OES measurement of CaF2:(Tb3+,Gd3+) NPs. Relaxivities of four different batches: as prepared (row 1) and
Cationic PEGylated polycaprolactone nanoparticles carrying post-operation docetaxel for glioma treatment
Beilstein J. Nanotechnol. 2017, 8, 1446–1456, doi:10.3762/bjnano.8.144
- . Then, DMEM was replaced with fresh medium containing blank nanoparticle formulations and incubated for 48 h. MTT assay was applied to determine cell viability. 20 µL of MTT solution in PBS (5 mg/mL) were added in each well and incubated for 4 h. 80 µL of MTT lysis solution containing SDS (23% w/v) and
Low uptake of silica nanoparticles in Caco-2 intestinal epithelial barriers
Beilstein J. Nanotechnol. 2017, 8, 1396–1406, doi:10.3762/bjnano.8.141
- stocks were cleaned (by pelleting and resuspending in fresh buffer) prior to experiments with cells. Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) confirmed that for both nanoparticles, no labile dye was present in the nanoparticle dispersions (Supporting Information File 1
Miniemulsion copolymerization of (meth)acrylates in the presence of functionalized multiwalled carbon nanotubes for reinforced coating applications
Beilstein J. Nanotechnol. 2017, 8, 1328–1337, doi:10.3762/bjnano.8.134
- purchased from IoLiTec Nanomaterials Co. (98.5%, Germany). Polyvinylpyrrolidone (PVP) with molar mass of 10,000 g·mol−1 was purchased from Sigma-Aldrich (99%). Potassium persulfate (KPS) was used as an initiator and purchased from Fluka. Sodium dodecyl sulfate (SDS) from Sigma-Aldrich (99%) and stearyl
- water with 0.2 g SDS. The aqueous and the organic phases were mixed under vigorous stirring and this mixture was sonicated under magnetic stirring for 15 min at 9 output control and 80% duty cycle with a Branson 450 instrument (Danbury, CT). Sonication was carried out in an ice bath to avoid overheating
- g of SDS. The mixture was under agitation for 15 min and then sonicated under magnetic stirring for 15 min (80% of duty cycle, 9 output control, Branson 450). Sonication was carried out in an ice bath to avoid overheating. Polymerization was carried out at 70 °C using KPS. Films Films from the
Dispersion of single-wall carbon nanotubes with supramolecular Congo red – properties of the complexes and mechanism of the interaction
Beilstein J. Nanotechnol. 2017, 8, 636–648, doi:10.3762/bjnano.8.68
- length influences CNT toxicity and cellular uptake [22][23]. Surfactants commonly used for dispersion of CNTs include SDS, CTAB, Triton X-100 or sodium cholate [24][25][26]. A less known approach is based on the interaction of CNTs with a bis-azo dye – Congo red (CR) [27]. This original procedure was
Nanoscale isoindigo-carriers: self-assembly and tunable properties
Beilstein J. Nanotechnol. 2017, 8, 313–324, doi:10.3762/bjnano.8.34
- , respectively, two times and 20 times higher than that of the classical surfactants, CTAB and SDS. Fluorescence studies showed that significant changes occur in the pyrene spectrum of the isoindigo derivatives in solution for all the compounds under study, regardless the length of the alkyl chain (Figure 4b
- available classical anionic (SDS), cationic (CTAB) and nonionic (Tween 80) surfactants. Because isatin and isoindigo derivatives are new dyes, their extinction coefficients were determined for the first time. UV–vis absorption spectra of 2a–h and 3 in chloroform are presented in Figures S11–S18 (Supporting
- studied compounds are presented in Table S5 (Supporting Information File 1). In Figure 5, the dependence of the absorbance of isatin and isoindigo derivatives in aqueous SDS solution on the SDS concentration is given. The data show that the isoindigo derivatives 2a and 3 are most effectively solubilized
Photo-ignition process of multiwall carbon nanotubes and ferrocene by continuous wave Xe lamp illumination
Beilstein J. Nanotechnol. 2017, 8, 134–144, doi:10.3762/bjnano.8.14
- ). Employing sodium dodecyl sulfate (SDS), the dispersion of the mixture in the solvent was facilitated [28]. Using 250 mg of SDS in 25 mL of water, equal to a volume ratio of 1%, the ultrasonic probe and the magnetic stirrer were applied for ten minutes. The solution then appeared more homogeneous (Figure 5
- /ferrocene mixture in toluene, before the treatment (c), after ten minutes of sonication and other ten minutes of magnetic stirring (d) and after another sonication for ten minutes (e). MWCNT/ferrocene mixture after adding SDS surfactant. Absorption spectra of MWCNT/ferrocene soon after sonication and
Impact of surface wettability on S-layer recrystallization: a real-time characterization by QCM-D
Beilstein J. Nanotechnol. 2017, 8, 91–98, doi:10.3762/bjnano.8.10
- structure and at a scan rate lower than 2 Hz. The solutions containing recrystallization buffer and SbpA were injected into a chamber sealed by a silicone O-ring with a syringe. Before use, the fluid cell, tubing, and O-rings were washed overnight with 2% SDS, rinsed gently with ultrapure water, and dried
- ) SDS solution for 20 min and then rinsed with ultrapure water and ethanol. The crystals were dried under N2 stream, treated with UV/ozone for 30 min and mounted into the QCM-D chamber. For measurements involving the use of hydrophobic SiO2 sensors, these were treated as explained above. The same
Structural and tribometric characterization of biomimetically inspired synthetic "insect adhesives"
Beilstein J. Nanotechnol. 2017, 8, 45–63, doi:10.3762/bjnano.8.6
- , standard deviation (Supporting Information File 1, Table S1)) showed a positive statistical correlation to the chemical compounds Vaseline, glycerine and SDS (sodium dodecyl sulfate), occurring mostly within the first generation of emulsions. The non-ionic surfactant Span 80 and the ionic surfactant AOT
- , microcrystalline wax, poly(vinyl alcohol) (only at the highest sliding speed of 500 µm s−1), glycerine, gelatin and sodium dodecyl sulphate (SDS) showed a positive significant relationship with friction. In addition, friction was also negatively affected by the non-ionic surfactant Span 80 at an almost significant
- level. In contrast, adhesive performance correlated positively with poly(vinyl alcohol) and the ionic surfactant SDS, whereas the chemical compounds Vaseline, microcrystalline wax and gelatin influenced adhesion only by trend. Discussion In contrast to bioinspired materials based on microstructured
A novel electrochemical nanobiosensor for the ultrasensitive and specific detection of femtomolar-level gastric cancer biomarker miRNA-106a
Beilstein J. Nanotechnol. 2016, 7, 2023–2036, doi:10.3762/bjnano.7.193
- , ferric chloride hexahydrate (FeCl3·6H2O), ferrous chloride tetrahydrate (FeCl2·4H2O), and acetic acid were obtained from Acros Organics (USA). Chloroauric acid (HAuCl4), BSA, sodium dodecyl sulfate (SDS), low molecular weight chitosan, dialysis tube with molecular cut off 12000 Da, sodium azide, KCl, 1
- ), and SDS (0.025 M). The TMC-coated magnetic NPs were produced through stirring at 50 °C for 5 h. Next, these TMC@Fe3O4 NPs were mixed with 25 mL of freshly prepared gold NPs; and the gold–magnetic nanocomplexes were finally obtained after stirring for 1 h at room temperature [36]. The final NPs were
Effective intercalation of zein into Na-montmorillonite: role of the protein components and use of the developed biointerfaces
Beilstein J. Nanotechnol. 2016, 7, 1772–1782, doi:10.3762/bjnano.7.170
- protein was investigated by electrophoresis (SDS-PAGE) as presented in Figure 1B. Zein solubilized in 80% v/v ethanol solution (Figure 1B, lane a) gives rise to two bands at approximately 23 and 25 kDa indicative of the α-zein conformation, which correspond to Z19 and Z22 proteins, respectively [29]. This
- SDS-PAGE gel also shows bands around 50 kDa that reveal the presence of α-zein dimers [30][31], as well as bands at higher molecular mass (around 150 and 250 kDa) corresponding to other protein aggregates, such as trimers, tetramers and/or oligomers. Electrophoresis measurements conducted in the PCT
- 250 kDa. The SDS-PAGE of the EXT phase presents a band at around 10 kDa together with those corresponding to α-zein (Figure 1B, lane b). This 10 kDa band, also reported by other authors [31], could be related to ethanol-soluble protein components associated with the xanthophyll pigments responsible
Reasons and remedies for the agglomeration of multilayered graphene and carbon nanotubes in polymers
Beilstein J. Nanotechnol. 2016, 7, 1174–1196, doi:10.3762/bjnano.7.109
- dodecylbenzene sulfonate (SDBS), sodium dodecyl sulfate (SDS), and sodium deoxycholate [36]. The most commonly used surfactants are derivatives of SDS [2]. Yan et al. modified SWNTs with surfactants Volan and BYK-9076 to improve the dispersion state in the polymer matrix [125]. They incorporated the treated
Reconstitution of the membrane protein OmpF into biomimetic block copolymer–phospholipid hybrid membranes
Beilstein J. Nanotechnol. 2016, 7, 881–892, doi:10.3762/bjnano.7.80
- . Unbroken cells were removed by a low-speed centrifugation, then, the supernatant was centrifuged at 100000g for 1 h. The pellet was resuspended in 50 mM Tris-HCl (pH 7.5) and mixed with an equal volume of SDS buffer containing 4% (w/v) sodium dodecyl sulfate (SDS), 2 mM β-mercaptoethanol and 50 mM Tris-HCl
- (pH 7.5). After 30 min incubation at a temperature of 50 °C, the solution was centrifuged at 100000g for 1 h. The pellet was resuspended in SDS-salt buffer containing 2% SDS, 0.5 M NaCl, 50 mM Tris-HCl (pH 7.5), incubated at a temperature of 37 °C for 30 min and centrifuged again at 100000g for 30 min
- . The supernatant containing OmpF was dialysed overnight against 20 mM Tris (pH 8), 1 mM EDTA and 1% (w/v) n-octyl polyoxyethylene (octyl-POE). The purity of the protein was assessed by SDS-PAGE. Formation of planar lipopolymer membranes Planar membranes of the lipopolymer mixtures were prepared across
Novel roles for well-known players: from tobacco mosaic virus pests to enzymatically active assemblies
Beilstein J. Nanotechnol. 2016, 7, 613–629, doi:10.3762/bjnano.7.54
- % SDS-PAGE stained with Coomassie Brilliant Blue R250). C: Transmission electron microscopy of TMVCys/Bio particles before and after binding of [SA]-enzymes (mix of [SA]-GOx:[SA]-HRP 14:1). The enzymes form a fluffy seam with protrusions, distributed over the whole particle length. Samples were adsorbed
Characterisation of thin films of graphene–surfactant composites produced through a novel semi-automated method
Beilstein J. Nanotechnol. 2016, 7, 209–219, doi:10.3762/bjnano.7.19
- Lane, Chichester, West Sussex, PO19 6PE, UK 10.3762/bjnano.7.19 Abstract In this paper we detail a novel semi-automated method for the production of graphene by sonochemical exfoliation of graphite in the presence of ionic surfactants, e.g., sodium dodecyl sulfate (SDS) and cetyltrimethylammonium
- LbL deposition of graphene(−)SDS alternated with polyethyleneimine (PEI). The optical study of graphene thin films deposited on different substrates was carried out using UV–vis absorption spectroscopy and spectroscopic ellipsometry. A particular focus was on studying graphene layers deposited on gold
- Semi-automated sonochemical exfoliation of graphene Two different surfactants were used to synthesise graphene–surfactant complexes: sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB). Firstly the surfactant solutions were prepared by dissolving in water. The SDS solution was made
Green and energy-efficient methods for the production of metallic nanoparticles
Beilstein J. Nanotechnol. 2015, 6, 2354–2376, doi:10.3762/bjnano.6.243
- surfactants, i.e., cationic (cetyltrimethylammonium chloride, CTAC), anionic (sodium dodecylsuphate, SDS) and non-ionic (Tween 80) at 20 °C on fundamental characteristics of Ag NPs. They found that in comparison to unmodified NPs, non-ionic surfactants can improve the polydispersity from 8.5 to 2.5%, and
- by reaction of AgNO3 and D-maltose. According to their results, sodium dodecyl sulfate (SDS), polyoxyethylenesorbitan monooleate (Tween 80) and PVP (Mw = 360000) were superior stabilizers for aggregation of Ag NPs [64]. Tai et al. used starch and glucose to reduce AgNO3 to Ag NPs in a spinning disk
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