Synthesis and characterization of quaternary La(Sr)S–TaS₂ misfit-layered nanotubes

• Marco Serra,
• Erumpukuthickal Ashokkumar Anumol,
• Dalit Stolovas,
• Iddo Pinkas,
• Ernesto Joselevich,
• Reshef Tenne,
• Andrey Enyashin and
• Francis Leonard Deepak

Beilstein J. Nanotechnol. 2019, 10, 1112–1124, doi:10.3762/bjnano.10.111

• distorted NaCl structure and the TaS2 can be indexed in a pseudo-hexagonal unit cell [35][38]. Figure 4 shows low-magnification and high-resolution HAADF-STEM images of two LaS–TaS2 (10 atom % Sr in the precursor) nanotubes. One can see the stacking of the SrxLa1−xS (indicated by green lines) and TaS2

Enhanced inhibition of influenza virus infection by peptide–noble-metal nanoparticle conjugates

• Zaid K. Alghrair,
• David G. Fernig and
• Bahram Ebrahimi

Beilstein J. Nanotechnol. 2019, 10, 1038–1047, doi:10.3762/bjnano.10.104

• NaCl, 3 mM KCl, l.8 mM Na2HPO4, 15 mM KH2PO4) with Tween-20 (0.1% (v/v)) pH 7.4 was added to the gold nanoparticles [26] and 10× (100 mM NaNO3, 20 mM HEPES with Tween-20 (0.1% (v/v)) pH 7.4 to the silver nanoparticles [17], vortex-mixed and the (gold or silver) nanoparticles were placed on a rotating

• nanoparticles were then applied to the column, the unbound fraction was recovered. Columns were washed with PBS and eluted with 1 M NaCl and then 2 M NaCl in 8 mM Na2HPO4, 15 mM KH2PO4, pH 7.4. Calculation of the aggregation parameter (AP) The surface plasmon absorption peak of 8.8 nm diameter gold

• with 2 M NaCl) fractions as a percentage of total nanoparticles applied to the column. Results are the mean ± SD (n = 3). Determination of the half maximal inhibitory concentration (IC50) of FluPep and and FluPep ligand in a plaque assay. Inhibition of plaque formation as a function of the

Correlation of surface-enhanced Raman scattering (SERS) with the surface density of gold nanoparticles: evaluation of the critical number of SERS tags for a detectable signal

• Vincenzo Amendola

Beilstein J. Nanotechnol. 2019, 10, 1016–1023, doi:10.3762/bjnano.10.102

• plate placed at the bottom of a cell containing a 10−4 M NaCl solution in double distilled water [18][19][41]. Dye solutions of either hexacyanin 3 (HITC, perchlorate, Exciton), malachite green (MG, oxalate salt, Sigma-Aldrich) or malachite green isothiocyanate (MGITC, Invitrogen) were added to a 2 nM

Serum type and concentration both affect the protein-corona composition of PLGA nanoparticles

• Katrin Partikel,
• Robin Korte,
• Dennis Mulac,
• Hans-Ulrich Humpf and
• Klaus Langer

Beilstein J. Nanotechnol. 2019, 10, 1002–1015, doi:10.3762/bjnano.10.101

• NPs incubated with 500 µL serum was measured in pure water and 0.2 mM NaCl, respectively. After water dilution PLGA NPs and NPs incubated with 500 µL FBS or human serum show zeta potentials of −43.2 mV, −34.0 mV and −21.4 mV, respectively. As could be expected the higher ionic background of 0.2 mM

• NaCl leads to a moderate reduction of the zeta potential to −33.0 mV, −30.5 mV, and −19.4 mV, respectively, but the graduation of the zeta potential values between the different samples remains the same. In brief, the incubation of PLGA NPs with increasing concentrations of FBS enabled us to modulate

Concurrent nanoscale surface etching and SnO₂ loading of carbon fibers for vanadium ion redox enhancement

• Jun Maruyama,
• Shohei Maruyama,
• Tomoko Fukuhara,
• Toru Nagaoka and
• Kei Hanafusa

Beilstein J. Nanotechnol. 2019, 10, 985–992, doi:10.3762/bjnano.10.99

• carbon cloth (ElectroChem). The reference electrode was Ag/AgCl/NaCl (3 M) (0.212 V vs standard hydrogen electrode). The electrolytes were H2SO4 (2 M) and VOSO4 (1 M)/H2SO4 (2 M). The measurements were carried out under Ar atmosphere at 25 °C. A flow cell test was performed using three layers of 3 cm2 of

• -550Air, and TGP-550Air. Cyclic voltammograms in Ar-saturated 2 M H2SO4 at 25 °C for TGP, TGP-550Air, and TGP-CSnPc-TAir (T = 500, 550, 600 and 650 °C). The reference electrode was Ag/AgCl/NaCl (3 M). The counter electrode was carbon cloth. Scan rate: 50 mV·s−1. Cyclic voltammograms in 1 M VOSO4 + 2 M

• H2SO4 at 25 °C for (a,b) VO2+/VO2+, (c) V2+/3+ redox reactions at TGP, TGP-550Air, TGP-CSnPc-TAir (T =500, 550, 600 and 650 °C). The reference electrode was Ag/AgCl/NaCl (3 M). The counter electrode was carbon cloth. Scan rates were (a,b) 1 mV·s−1 and (c) 50 mV·s−1. Charge–discharge curves and cycling

An iridescent film of porous anodic aluminum oxide with alternatingly electrodeposited Cu and SiO₂ nanoparticles

• Menglei Chang,
• Huawen Hu,
• Haiyan Quan,
• Hongyang Wei,
• Zhangyi Xiong,
• Jiacong Lu,
• Pin Luo,
• Yaoheng Liang,
• Jianzhen Ou and
• Dongchu Chen

Beilstein J. Nanotechnol. 2019, 10, 735–745, doi:10.3762/bjnano.10.73

• test sample was immobilized onto a PVC tube with epoxy resin, and then naturally dried for 12 h. After that, a NaCl solution (3.5%) was poured into the PVC tube, and the level of the NaCl solution was in the range of a half to two-thirds of the tube volume. The exposed area of the PVC tube was

Widening of the electroactivity potential range by composite formation – capacitive properties of TiO₂/BiVO₄/PEDOT:PSS electrodes in contact with an aqueous electrolyte

• Konrad Trzciński,
• Mariusz Szkoda,
• Andrzej P. Nowak,
• Marcin Łapiński and
• Anna Lisowska-Oleksiak

Beilstein J. Nanotechnol. 2019, 10, 483–493, doi:10.3762/bjnano.10.49

• anions originating from the electrolyte during electrooxidation/electroreduction cycles [35]. Moreover, the overpotential of EDOT oxidation is lower in NaPSS aqueous electrolyte (in comparison with, e.g., NaCl) [36]. Electrodepositon was performed using 400, short (0.2 s) potentiostatic pulses (E = 1 V

Non-agglomerated silicon–organic nanoparticles and their nanocomplexes with oligonucleotides: synthesis and properties

• Asya S. Levina,
• Marina N. Repkova,
• Nadezhda V. Shikina,
• Zinfer R. Ismagilov,
• Svetlana A. Yashnik,
• Dmitrii V. Semenov,
• Yulia I. Savinovskaya,
• Natalia A. Mazurkova,
• Inna A. Pyshnaya and
• Valentina F. Zarytova

Beilstein J. Nanotechnol. 2018, 9, 2516–2525, doi:10.3762/bjnano.9.234

• conjugated with oligodeoxyribonucleotides (ODN) through the binding to the negatively charged internucleotide phosphate groups to form Si–NH2·ODN complexes. Like Si–NH2, the Si–NH2·ODN nanocomplexes are dissolved in aqueous solutions. The addition of NaCl did not lead to precipitation. Si–NH2 and Si–NH2·ODN

• these supernatants were precipitated by the addition of 1 µL of 3 M LiClO4 (precipitate 2). The precipitates 1 and 2 were dried at 60 °C to remove the acetone and were dissolved in 1 M NaCl. The amount of the bound (precipitate 1) and unbound (precipitate 2) oligonucleotide was evaluated

• were visualized by StainsAll (Figure 1b). In our experiments, the Si–NH2·ODN nanocomplexes were obtained by mixing 0.46 M Si–NH2 (2 µL) and ODN in 0.16 M NaCl or water (98 µL) while keeping the ratio between the amino and phosphate groups at NH2/p ≥ 10, unless otherwise specified. Formation of

SERS active Ag–SiO₂ nanoparticles obtained by laser ablation of silver in colloidal silica

• Cristina Gellini,
• Francesco Muniz-Miranda,
• Alfonso Pedone and
• Maurizio Muniz-Miranda

Beilstein J. Nanotechnol. 2018, 9, 2396–2404, doi:10.3762/bjnano.9.224

• , Ludox TM-40, pH ≈9 at 25 °C, NaCl content: 0.03 wt %) was diluted with distilled water in order to have a sample with 10 wt % as SiO2 content. Laser ablation of silver in colloidal silica was performed with the fundamental wavelength of a Q-switched Nd:YAG ns-pulsed laser (Quanta System G90-10: rep

The role of adatoms in chloride-activated colloidal silver nanoparticles for surface-enhanced Raman scattering enhancement

• Nicolae Leopold,
• Andrei Stefancu,
• Krisztian Herman,
• István Sz. Tódor,
• Stefania D. Iancu,
• Vlad Moisoiu and
• Loredana F. Leopold

Beilstein J. Nanotechnol. 2018, 9, 2236–2247, doi:10.3762/bjnano.9.208

• 254 nm (Figure 2) [25][26]. It should be mentioned that none of the reagents measured separately showed an absorption band at this wavelength and that the AgCl absorption band can also be observed in the UV–vis spectrum of a mixture of only AgNO3 and NaCl (Supporting Information File 1, Figure S1

• − ions (10−8–10−7 M) are nonetheless present in the solution, since the test molecules were added as chloride salts, but not enough to observe a SERS effect. However, after adding 0.1 M NaCl to the cit-AgNPs or hya-AgNPs, intense SERS spectra of crystal violet or 9-aminoacridine were obtained (data not

• violet, we added 1 mM NaCl to activate the cit-AgNPs. However, the presence of 1 mM Cl− led only to a weak activation of the cit-AgNPs, where the SERS intensity of 10−9 M crystal violet (Figure 6C) was comparable to that recorded with the as-synthesized hya-AgNPs (Figure 6B). However, the further

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

• Muhammad Imran,
• Nunzio Motta and
• Mahnaz Shafiei

Beilstein J. Nanotechnol. 2018, 9, 2128–2170, doi:10.3762/bjnano.9.202

The structural and chemical basis of temporary adhesion in the sea star Asterina gibbosa

• Birgit Lengerer,
• Marie Bonneel,
• Mathilde Lefevre,
• Elise Hennebert,
• Philippe Leclère,
• Emmanuel Gosselin,
• Peter Ladurner and
• Patrick Flammang

Beilstein J. Nanotechnol. 2018, 9, 2071–2086, doi:10.3762/bjnano.9.196

• in cacodylate buffer (0.1 M. pH 7.8, with 1.55% NaCl) for 3 h at 4 °C. The tube feet were rinsed in cacodylate buffer (0.2 M. pH 7.8, with 1.84% NaCl) and then post-fixed in 1% osmium tetroxide in cacodylate buffer (0.1 M. pH 7.8, with 2.3% NaCl). After rinsing in cacodylate buffer, the tube feet

Nanoconjugates of a calixresorcinarene derivative with methoxy poly(ethylene glycol) fragments for drug encapsulation

• Alina M. Ermakova,
• Julia E. Morozova,
• Yana V. Shalaeva,
• Victor V. Syakaev,
• Aidar T. Gubaidullin,
• Alexandra D. Voloshina,
• Vladimir V. Zobov,
• Irek R. Nizameev,
• Olga B. Bazanova,
• Igor S. Antipin and
• Alexander I. Konovalov

Beilstein J. Nanotechnol. 2018, 9, 2057–2070, doi:10.3762/bjnano.9.195

• a phase separation up to 90 °C, while solutions of 3 in a physiological solution of sodium chloride (0.9% NaCl) solution or in phosphate-buffered saline (PBS, pH 7.4) clouded at 60 °C (Figure 4a). DLS method showed that an increase of the particle size of 3 in the presence of salts occurred already

• at room temperature (Figure 4c, Figure S10, Supporting Information File 1). In the 0.9% NaCl solution a monomodal particle size distribution was observed (Table S1, Supporting Information File 1). TEM images of dried saline solution of 3 confirmed the growing of the macrocycle particle size to about

• further increase of the particles size. Thus, in aqueous solution macrocycle 3 forms micelles with a diameter of 5–10 nm, which associate into “multimicelle aggregates” in the presence of salts (0.9% NaCl, PBS) and become sensitive to a change of the solution temperature (Figure 4f). Micelles of 3 in the

Interaction-tailored organization of large-area colloidal assemblies

• Silvia Rizzato,
• Elisabetta Primiceri,
• Anna Grazia Monteduro,
• Adriano Colombelli,
• Angelo Leo,
• Maria Grazia Manera,
• Roberto Rella and
• Giuseppe Maruccio

Beilstein J. Nanotechnol. 2018, 9, 1582–1593, doi:10.3762/bjnano.9.150

• temperature and carefully dried in a nitrogen flow; in this third (2D) assembly phase, however, (unwanted) lateral capillary forces could become relevant when the solvent film thickness approaches the particle diameter, as discussed later. As process parameters, the NaCl concentration and particle

• or L, indicating small or large spheres, respectively, upper index refers to the NaCl concentration, and the lower index indicates the particle concentration in wt %. After colloidal assembly of the polystyrene particles, gold and cobalt nanohole arrays (Figure 1b) were realized by depositing 20 nm

• (NaCl) concentration (from 0 mM to 10 mM). Figure 2a–e reports SEM images of 80 nm particle films obtained by absorbing solutions with different salt concentrations but at the same 0.2 wt % nanosphere concentration, while the relative radial distribution functions g(r) are compared in Figure 2f. The

Colorimetric detection of Cu²⁺ based on the formation of peptide–copper complexes on silver nanoparticle surfaces

• Gajanan Sampatrao Ghodake,
• Surendra Krishna Shinde,
• Rijuta Ganesh Saratale,
• Avinash Ashok Kadam,
• Ganesh Dattatraya Saratale,
• Asad Syed,
• Fuad Ameen and
• Dae-Young Kim

Beilstein J. Nanotechnol. 2018, 9, 1414–1422, doi:10.3762/bjnano.9.134

• concentration of NaCl (1.0 to 3.5 mM), revealing that the sensitivity of the analytical platform can be increased with the increase of ionic strength. Based on these results, further tests on Cu2+ were performed using distilled water, even though this method is versatile and adaptable at different pH values and

• ). NaOH and NaCl were obtained from Dae Jung Chemicals Korea. Standard solutions, including Cu2+, Mn2+, Mo3+, Na+, Cr3+, Hg2+, Ni2+, Ca2+, K+, Cs+, Li+, As+, PO43–, NH4, and NO3− were obtained from Kanto Chemicals. All reagents were of analytical grade and used without any further treatment. Ultrapure

• ), and NaCl (1.0–3.5 mM). The absorbance of the solutions was measured at 410 nm after 5 min. Then, Cu2+ (1.28 µM) was added, respectively. The solutions were again incubated for another 5 min before the absorbance of the suspensions was re-measured at 410 nm. Detection of Cu2+ concentration The casein

Atomistic modeling of tribological properties of Pd and Al nanoparticles on a graphene surface

• Alexei Khomenko,
• Miroslav Zakharov,
• Denis Boyko and
• Bo N. J. Persson

Beilstein J. Nanotechnol. 2018, 9, 1239–1246, doi:10.3762/bjnano.9.115

• , even when the contact area with the graphene is the same. This results from the different lattice constant and atomic arrangements in Al and Pd particles. A similar non-monotonous behavior of friction is observed for hexadecanethiol self-assembled monolayers on Au substrates [4] and NaCl(001) crystal

• , which is similar to that of hexadecanethiol self-assembled monolayers on Au substrates [4] and NaCl crystal surfaces in ultrahigh vacuum [5]. We found that the friction force, i.e., the force acting on the particles from the substrate, depends nearly linearly on the contact area consistent with [13][14

Electrodeposition of reduced graphene oxide with chitosan based on the coordination deposition method

• Mingyang Liu,
• Yanjun Chen,
• Chaoran Qin,
• Zheng Zhang,
• Shuai Ma,
• Xiuru Cai,
• Xueqian Li and
• Yifeng Wang

Beilstein J. Nanotechnol. 2018, 9, 1200–1210, doi:10.3762/bjnano.9.111

• that of our work [46]. Additionally, Figure 7b shows that there is an obvious peak current in the CV for 1.0 mM 1-naphthol, whereas there is no obvious peak current in the CVs for 1.0 mM NaCl and 1.0 mM K2SO4, indicating that the GCE with the deposited HACC-rGO/CS film has an anti-interference

• concentration of 1-naphthol. (a) DPV of the GCE with the deposited HACC-rGO/CS film in the presence of 1-naphthol with different concentrations (0.5, 1, 2, 5 and 10 μM). (b) CV curves of the GCE with the deposited HACC-rGO/CS film in the presence of 1.0 mM NaCl, 1.0 mM K2SO4, and 1.0 mM 1-naphthol. Scan rate

Noble metal-modified titania with visible-light activity for the decomposition of microorganisms

• Maya Endo,
• Zhishun Wei,
• Kunlei Wang,
• Baris Karabiyik,
• Kenta Yoshiiri,
• Paulina Rokicka,
• Bunsho Ohtani,
• Agata Markowska-Szczupak and
• Ewa Kowalska

Beilstein J. Nanotechnol. 2018, 9, 829–841, doi:10.3762/bjnano.9.77

• g/L 10 µL/disc) were placed at different locations on the culture plates. The control discs were impregnated with saline solution (0.9% NaCl). One part of the plates was incubated in the dark, while another part was exposed to the indoor light. The natural indoor light from windows (intensity of ca

• . The spores of A. niger, A. melleus and P. chrysogenum were collected with 8.5 g/L NaCl aqueous solution, and the suspension was inoculated on the Petri dishes. Dishes were irradiated with fluorescence light or kept in dark. After three and eight days of exposure the diameters of colonies were measured

• and the appearances were checked visually. Sporulation test 20 g/L of the sample was dispersed in MEA medium, sonicated for 1 min, autoclaved at 121 °C for 10 min and dispensed to the slants. The spores of A. melleus and P. chrysogenum were collected with 8.5 g/L NaCl aqueous solution, the number of

Photocatalytic and adsorption properties of TiO₂-pillared montmorillonite obtained by hydrothermally activated intercalation of titanium polyhydroxo complexes

• Mikhail F. Butman,
• Nikolay L. Ovchinnikov,
• Nikita S. Karasev,
• Nataliya E. Kochkina,
• Alexander V. Agafonov and
• Alexandr V. Vinogradov

Beilstein J. Nanotechnol. 2018, 9, 364–378, doi:10.3762/bjnano.9.36

• and consists of flaky particles with sizes ranging from 100 to 1000 nm, which "stick" to large aggregates. A MM form enriched with the Na+ ions was obtained by adding a 1 M solution of NaCl to the MM suspension (10 g of MM per 1 L of solution) under continuous mixing with a magnetic stirrer and

Wafer-scale bioactive substrate patterning by chemical lift-off lithography

• Chong-You Chen,
• Chang-Ming Wang,
• Hsiang-Hua Li,
• Hong-Hseng Chan and
• Wei-Ssu Liao

Beilstein J. Nanotechnol. 2018, 9, 311–320, doi:10.3762/bjnano.9.31

• (TRIS) and tris(2-carboxyethyl)phosphine (TCEP) were obtained from Acros Organics (Geel, Belgium). Bovine serum albumin (BSA), and 10× phosphate buffered saline (PBS) containing 1.37 M NaCl, 0.027 M KCl, 0.10 M Na2HPO4, and 0.018 M KH2PO4 were purchased from Bioman Scientific Co., Ltd (Taipei, Taiwan

• mixed with 5 μL of 20 μM reducing agent (TCEP) in 25 mM TRIS buffer (150 mM NaCl, pH 8.2) for 30 min. The probe solution was then diluted to a final concentration of 0.5 μM in 25 mM TRIS buffer (150 mM NaCl, pH 8.2), and kept in the dark before use. Bioactive substrate preparation by the CLL process

• TRIS buffer (150 mM NaCl, pH 7.4) in advance. Target DNA solutions in 25 mM TRIS buffer (150 mM NaCl, pH 7.4) was thereafter dropped onto the target DNA-specific probe-modified substrates for a 5 min incubation period. For sandwich-like array signal reporting, biotinylated thiol-patterned substrates

Hyperthermic intracavitary nanoaerosol therapy (HINAT) as an improved approach for pressurised intraperitoneal aerosol chemotherapy (PIPAC): Technical description, experimental validation and first proof of concept

• Daniel Göhler,
• Stephan Große,
• Alexander Bellendorf,
• Thomas Albert Falkenstein,
• Mehdi Ouaissi,
• Jürgen Zieren,
• Michael Stintz and
• Urs Giger-Pabst

Beilstein J. Nanotechnol. 2017, 8, 2729–2740, doi:10.3762/bjnano.8.272

• upper/lower and the left upper/lower as well as from the subdiaphragmal right/left, the epigastric and the posterior stomach. Afterwards, the tissue samples were rinsed with a sterile aqueous 0.9 wt % NaCl solution to eliminate superficial cytostatics, dried with blotting paper and shock frozen in

Patterning of supported gold monolayers via chemical lift-off lithography

• Liane S. Slaughter,
• Kevin M. Cheung,
• Sami Kaappa,
• Huan H. Cao,
• Qing Yang,
• Thomas D. Young,
• Andrew C. Serino,
• Sami Malola,
• Jana M. Olson,
• Stephan Link,
• Hannu Häkkinen,
• Anne M. Andrews and
• Paul S. Weiss

Beilstein J. Nanotechnol. 2017, 8, 2648–2661, doi:10.3762/bjnano.8.265

• solutions. Immediately prior to experiments, the DNA stock solutions were diluted 1:100 with 1× phosphate buffered saline (PBS) ([NaCl] = 138 mM, [KCl] = 2.7 mM, and [MgCl2] = 5 mM) pH 7.4 (Sigma-Aldrich, St. Louis, MO, USA) to make 1 µM solutions. The patterns of Au–alkanethiolate monolayers on flat PDMS

Photobleaching of YOYO-1 in super-resolution single DNA fluorescence imaging

• Joseph R. Pyle and
• Jixin Chen

Beilstein J. Nanotechnol. 2017, 8, 2296–2306, doi:10.3762/bjnano.8.229

• photocleavage (photodamage). Experimental Sample preparation All λ-DNA (Thermo Fisher) and YOYO-1 (Invitrogen) solutions were prepared in the buffer of 10 mM HEPES (pH 7.4, Acros Organics) with 10 mM NaCl (Sigma-Aldrich). All water used was from a Barnstead E-Pure ultrapure water purification system with a

Bi-layer sandwich film for antibacterial catheters

• Gerhard Franz,
• Florian Schamberger,
• Hamideh Heidari Zare,
• Sara Felicitas Bröskamp and
• Dieter Jocham

Beilstein J. Nanotechnol. 2017, 8, 1982–2001, doi:10.3762/bjnano.8.199

• . The medium of choice is artificial urine because our catheter should be applied to the uriniferous system [41][42]. Although urine is mainly a solution of NaCl (approx. 0.1 M), no precipitation of AgCl occurs because urine always contains ammonia (which is the reaction product of urea and urease

Carbon nano-onions as fluorescent on/off modulated nanoprobes for diagnostics

• Stefania Lettieri,
• Marta d’Amora,
• Adalberto Camisasca,
• Alberto Diaspro and
• Silvia Giordani

Beilstein J. Nanotechnol. 2017, 8, 1878–1888, doi:10.3762/bjnano.8.188

• of independent measurements. The CNO samples were dispersed to a final concentration of 1 mg mL−1 in PBS 0.01 M (PBS pH 7.4, composition 0.14 M NaCl, 0.0027 M KCl, 0.010 M PO43−) The samples were sonicated for 10 min at 37 kHz and then diluted in 0.01 M PBS to achieve a final concentration of 5 μg mL