Nanostructured carbon materials decorated with organophosphorus moieties: synthesis and application

• Giacomo Biagiotti,
• Vittoria Langè,
• Cristina Ligi,
• Stefano Caporali,
• Maurizio Muniz-Miranda,
• Anna Flis,
• K. Michał Pietrusiewicz,
• Giacomo Ghini,
• Alberto Brandi and
• Stefano Cicchi

Beilstein J. Nanotechnol. 2017, 8, 485–493, doi:10.3762/bjnano.8.52

• 12 was confirmed by the signal at 2118 cm−1 in the FTIR spectra (see Supporting Information File 1, Figures S9 and S10). The ICP-AES was used to determine the amount of phosphorus in the complex matrix. The samples were previously mineralized by treatment with nitric acid and a hydrogen peroxide

Optical and photocatalytic properties of TiO₂ nanoplumes

• Viviana Scuderi,
• Massimo Zimbone,
• Maria Miritello,
• Giuseppe Nicotra,
• Giuliana Impellizzeri and
• Vittorio Privitera

Beilstein J. Nanotechnol. 2017, 8, 190–195, doi:10.3762/bjnano.8.20

• ). Unfortunately, the synthesis of this remarkable material requires high pressures of H2 (up to 20 bar) and long annealing treatments (up to 5 days). Our group investigated the possibility to synthesize black TiO2 by an easier method [20]. In 2016 we employed, for the first time [21], hydrogen peroxide etching of

Streptavidin-coated gold nanoparticles: critical role of oligonucleotides on stability and fractal aggregation

• Roberta D'Agata,
• Pasquale Palladino and
• Giuseppe Spoto

Beilstein J. Nanotechnol. 2017, 8, 1–11, doi:10.3762/bjnano.8.1

• hydrogen peroxide (30%) and concentrated sulfuric acid (98%). Caution: piranha solution reacts violently with most organic materials and should be handled with extreme care. AuNPs were synthesized by citrate reduction of HAuCl4·3H2O [65]. The trisodium citrate concentration has been shown to be crucial for

Facile fabrication of luminescent organic dots by thermolysis of citric acid in urea melt, and their use for cell staining and polyelectrolyte microcapsule labelling

• Nadezhda M. Zholobak,
• Anton L. Popov,
• Alexander B. Shcherbakov,
• Nelly R. Popova,
• Mykhailo M. Guzyk,
• Valeriy P. Antonovich,
• Alla V. Yegorova,
• Yuliya V. Scrypynets,
• Inna I. Leonenko,
• Alexander Ye. Baranchikov and
• Vladimir K. Ivanov

Beilstein J. Nanotechnol. 2016, 7, 1905–1917, doi:10.3762/bjnano.7.182

• , and cellular luminescence was weak (Figure 5, top). Treatment with hydrogen peroxide (8 μg/mL, 15 min) initiated activation of oxidative stress in the cells; upon such treatment, the cells were stained more intensely (Figure 5, bottom). The use of O-dots allowed a clear visualization of the oxidative

• with hydrogen peroxide, whose activation includes protein synthesis and ribosome formation. It should be noted that cells at the stage of division, or recently divided cells, absorb O-dots more actively, which may be due to the higher intensity of metabolic processes, and, as a consequence, they have a

• greater sensitivity to oxidative stress. For comparison, a similar staining manipulation was carried out for the same ST cells treated with hydrogen peroxide, but without subsequent fixation (Supporting Information File 1, Figure S20). The micrographs obtained demonstrate that only some of the cells were

Role of RGO support and irradiation source on the photocatalytic activity of CdS–ZnO semiconductor nanostructures

• Suneel Kumar,
• Rahul Sharma,
• Vipul Sharma,
• Gurunarayanan Harith,
• Vaidyanathan Sivakumar and
• Venkata Krishnan

Beilstein J. Nanotechnol. 2016, 7, 1684–1697, doi:10.3762/bjnano.7.161

• permanganate (KMnO4) and hydrogen peroxide (H2O2) were purchased from Merck. Zinc chloride (ZnCl2), sodium hydroxide (NaOH), cadmium acetate dihydrate (Cd(OOCCH3)2·2H2O), sodium sulfide (Na2S), ammonia solution and methyl orange were also supplied by Merck. Polyvinyl pyrrolidone (PVP) used in synthesis was

Graphene-enhanced plasmonic nanohole arrays for environmental sensing in aqueous samples

• Christa Genslein,
• Peter Hausler,
• Eva-Maria Kirchner,
• Rudolf Bierl,
• Antje J. Baeumner and
• Thomas Hirsch

Beilstein J. Nanotechnol. 2016, 7, 1564–1573, doi:10.3762/bjnano.7.150

• . Experimental Nanohole array fabrication All substrates are based on glass slides (20 × 20 mm2) of F1-Type with a refractive index of 1.61 (Mivitec GmbH, Sinzing, Germany). All glass slides were cleaned in piranha solution for 90 min and in a mixture of water, ammonia and hydrogen peroxide at a 5:1:1 (v/v/v

Development of highly faceted reduced graphene oxide-coated copper oxide and copper nanoparticles on a copper foil surface

• Rebeca Ortega-Amaya,
• Yasuhiro Matsumoto,
• Andrés M. Espinoza-Rivas,
• Manuel A. Pérez-Guzmán and
• Mauricio Ortega-López

Beilstein J. Nanotechnol. 2016, 7, 1010–1017, doi:10.3762/bjnano.7.93

• Reproquifin. Hydrogen peroxide (30%), acetone (99.77%) and copper foil (99.99%) were obtained from J.T. Baker. Ethanol (99.5%) was purchased from Reasol. All reagents were used as received without further purification. Preparation of the rGO sheets and copper-based nanoparticles composite As described in our

Dielectrophoresis of gold nanoparticles conjugated to DNA origami structures

• Anja Henning-Knechtel,
• Matthew Wiens,
• Mathias Lakatos,
• Andreas Heerwig,
• Frieder Ostermaier,
• Nora Haufe and
• Michael Mertig

Beilstein J. Nanotechnol. 2016, 7, 948–956, doi:10.3762/bjnano.7.87

• evaporated and finally the photoresist was removed with the remover solution AR 300-72 (Allresist) by sonication. Dielectrophoretic manipulation of the 6HBs The gold pads were cleaned by immersing them stepwise for 20 s into 100% fuming nitric acid (Merck) and 1 min into a neutralization solution [hydrogen

• peroxide (30 wt % in water; Merck), ammonia solution (25 wt % in water; Merck) and ddH2O in the ratio 1:1:5] and rinsed with ddH2O. Then, such a glass slide was placed in an inverted optical microscope (Axiovert 200M, Carl Zeiss MicroImaging) equipped with a 100×/1.45 numerical aperture oil immersion

Unraveling the neurotoxicity of titanium dioxide nanoparticles: focusing on molecular mechanisms

• Bin Song,
• Yanli Zhang,
• Jia Liu,
• Xiaoli Feng,
• Ting Zhou and
• Longquan Shao

Beilstein J. Nanotechnol. 2016, 7, 645–654, doi:10.3762/bjnano.7.57

• injure tissues and organs, and is often associated with diseases and aging. Meanwhile, oxidative stress, caused by NPs, is the most important and widely accepted mechanism of nano-neurotoxicity. ROS, such as superoxide, hydrogen peroxide, and hydroxyl radicals, are natural products of the regular oxygen

Novel roles for well-known players: from tobacco mosaic virus pests to enzymatically active assemblies

• Claudia Koch,
• Fabian J. Eber,
• Carlos Azucena,
• Alexander Förste,
• Stefan Walheim,
• Thomas Schimmel,
• Alexander M. Bittner,
• Holger Jeske,
• Hartmut Gliemann,
• Sabine Eiben,
• Fania C. Geiger and
• Christina Wege

Beilstein J. Nanotechnol. 2016, 7, 613–629, doi:10.3762/bjnano.7.54

• enabled a colorimetric detection of catalytic activity and the quantification of glucose [152][166][167]. Specifically, GOx catalyzes glucose oxidation to D-glucono-1,5-lactone, thereby producing hydrogen peroxide [168]. This is a substrate for HRP, which reduces it to water, and, as a side reaction, can

Characterization of spherical domains at the polystyrene thin film–water interface

• Khurshid Ahmad,
• Xuezeng Zhao,
• Yunlu Pan and
• Danish Hussain

Beilstein J. Nanotechnol. 2016, 7, 581–590, doi:10.3762/bjnano.7.51

• preparation Polystyrene thin films were spin-coated onto silicon dioxide wafers. Prior to spin coated, the silicon dioxide wafers were cleaned using piranha solution of 3:1 (v/v) sulfuric acid/hydrogen peroxide for 30 min [8]. The wafers were further cleaned with acetone, ethanol and DI water in an ultrasonic

Surface coating affects behavior of metallic nanoparticles in a biological environment

• Darija Domazet Jurašin,
• Marija Ćurlin,
• Ivona Capjak,
• Tea Crnković,
• Marija Lovrić,
• Michal Babič,
• Daniel Horák,
• Ivana Vinković Vrček and
• Srećko Gajović

Beilstein J. Nanotechnol. 2016, 7, 246–262, doi:10.3762/bjnano.7.23

• ), Brij 35 (5 mL, 0.45 mM) and hydrogen peroxide (0.105 mL, 30 wt %) with 44.5 mL ultrapure water. The mixture was vigorously stirred at room temperature in the presence of air. The final volume was kept at 50 mL. To this mixture, NaBH4 (0.4 mL, 200 mM) was rapidly injected, generating a colloid that was

Temperature-dependent breakdown of hydrogen peroxide-treated ZnO and TiO₂ nanoparticle agglomerates

• Sinan Sabuncu and
• Mustafa Çulha

Beilstein J. Nanotechnol. 2015, 6, 1897–1903, doi:10.3762/bjnano.6.193

• , the influence of hydrogen peroxide (H2O2) treatment on the dispersion of ZnO and TiO2 nanoparticle (NP) agglomerates as a function of temperature is studied. The H2O2 treatment of the MONPs increases the density of hydroxyl (–OH) groups on the NP surface, as verified with FTIR spectroscopy. The

• individual nanoparticles. It was shown that the combined effect of hydroxylation and heating enhances the dispersion of ZnO and TiO2 NPs in water. Keywords: agglomeration; hydrogen peroxide; metal oxide nanoparticles; TiO2; ZnO; Introduction Dispersion of metal oxide nanoparticles (MONPs) in aqueous media

• demonstrated that the treatment of ZnO NPs with hydrogen peroxide (H2O2) affected the surface properties and as a result the cytotoxicity of the ZnO NPs was found to decrease [20]. H2O2 is a powerful oxidizer and it is therefore routinely used in many cleaners and bleaches. Living systems can produce hydrogen

Optimized design of a nanostructured SPCE-based multipurpose biosensing platform formed by ferrocene-tethered electrochemically-deposited cauliflower-shaped gold nanoparticles

• Wicem Argoubi,
• Maroua Saadaoui,
• Sami Ben Aoun and
• Noureddine Raouafi

Beilstein J. Nanotechnol. 2015, 6, 1840–1852, doi:10.3762/bjnano.6.187

• biosensor (Figure 6a and Figure 6b). Selective detection of H2O2 The simplicity of design and the ease of layer-by-layer modification make this surface an excellent electrochemical sensing platform for hydrogen peroxide detection. Figure 6c shows typical chronoamperometric responses of the ferrocene moiety

• sought to be detected in picogramm (ng/mL) levels and hydrogen peroxide in micromolar levels. From the table, we can see that the developed biosensors are more sensitive than most of those recently published in literature using ferrocene or quinone as electron mediators or immunosensing event transducers

• peroxide reduction. Real sample analysis The two devices have been successfully applied to the detection of hIgG and hydrogen peroxide in human blood serum and local honey [52] chosen as real complex samples, respectively. Before the analysis, the two samples of honey and serum were diluted to 10× and to

Scalable, high performance, enzymatic cathodes based on nanoimprint lithography

• Dmitry Pankratov,
• Richard Sundberg,
• Javier Sotres,
• Dmitry B. Suyatin,
• Ivan Maximov,
• Sergey Shleev and
• Lars Montelius

Beilstein J. Nanotechnol. 2015, 6, 1377–1384, doi:10.3762/bjnano.6.142

• concomitant reduction of O2 directly to H2O in a trinuclear Cu cluster (T2/T3 Cu cluster) positioned 12–13 Å away [5][6][7], without releasing reactive O2 species, such as hydrogen peroxide or superoxide radicals [8][9]. Three-dimensional electrodes for enzyme-based cathodes are usually used to design high

Formation of substrate-based gold nanocage chains through dealloying with nitric acid

• Ziren Yan,
• Ying Wu and
• Junwei Di

Beilstein J. Nanotechnol. 2015, 6, 1362–1368, doi:10.3762/bjnano.6.140

• Suzhou NSG Electronics Co. Ltd. (Suzhou, China). Prior to use, it was divided into the strips (50 × 6 mm). All chemicals were of analytical grade and used as received without any further purification. Silver nitrate (AgNO3), hydrogen tetrachloroaurate (HAuCl4), nitric acid (HNO3), hydrogen peroxide (H2O2

Patterning technique for gold nanoparticles on substrates using a focused electron beam

• Takahiro Noriki,
• Shogo Abe,
• Kotaro Kajikawa and
• Masayuki Shimojo

Beilstein J. Nanotechnol. 2015, 6, 1010–1015, doi:10.3762/bjnano.6.104

• contribute to the fabrication of nanodevices such as plasmonic waveguides. Experimental Step (i): amino-epoxy method A polished Si wafer, with dimensions of about 3 × 1 mm, was used as the substrate. The substrate was immersed in a mixture (1:3 by volume) of hydrogen peroxide (30%) and concentrated sulfuric

Formation of stable Si–O–C submonolayers on hydrogen-terminated silicon(111) under low-temperature conditions

• Yit Lung Khung,
• Siti Hawa Ngalim,
• Andrea Scaccabarozzi and
• Dario Narducci

Beilstein J. Nanotechnol. 2015, 6, 19–26, doi:10.3762/bjnano.6.3

• . Experimental Materials Silicon wafers (111), were boron-doped (resistivity of 0.01–0.018 Ω·cm) and were used in this experiment. Sulfuric acid (Aldrich) and hydrogen peroxide (BDH Prolabo) were of semiconductor grade. 4-ethynylbenzyl alcohol and 4-ethynyl-α,α,α-trifluorotoluene were purchased from Sigma

• -Aldrich. All other chemicals, unless stated otherwise were used as received without further purification. Thermal reaction protocol Similar to the methodology as described by Ciampi et al [15], silicon wafers approximately 20 × 20 mm2 were cleaned for 30 min in hot Piranha solution (95 °C, hydrogen

• peroxide (33%)/conc. sulfuric acid, 1:3 (v/v)). The samples were then submerged in a solution of 2.5% hydrofluoric acid for 1.5 min. Subsequently, the samples were placed to a degassed (through a minimum of 20 freeze-pump-thaw cycles) solution of 4-ethynyl-α,α,α-trifluorotoluene (0.3 M in mesitylene). The

High-frequency multimodal atomic force microscopy

• Adrian P. Nievergelt,
• Jonathan D. Adams,
• Pascal D. Odermatt and
• Georg E. Fantner

Beilstein J. Nanotechnol. 2014, 5, 2459–2467, doi:10.3762/bjnano.5.255

• per degree of screw rotation along the cantilever length and width, respectively. Actin filament preparation A 12 mm diameter glass coverslip (Novoglas Labortechnik) was cleaned with piranha solution (1:3 ratio of hydrogen peroxide to sulphuric acid), rinsed with distilled water and dried by a

Properties of plasmonic arrays produced by pulsed-laser nanostructuring of thin Au films

• Katarzyna Grochowska,
• Katarzyna Siuzdak,
• Peter A. Atanasov,
• Carla Bittencourt,
• Anna Dikovska,
• Nikolay N. Nedyalkov and
• Gerard Śliwiński

Beilstein J. Nanotechnol. 2014, 5, 2102–2112, doi:10.3762/bjnano.5.219

• is widely used and investigated because of its stable physical and electrochemical properties and finds application in optoelectronic and photovoltaic devices, as well as in the sensitive detection of species such as glucose, hydrogen peroxide and DNA fragments [56][57]. Samples of the Au–ITO

The cell-type specific uptake of polymer-coated or micelle-embedded QDs and SPIOs does not provoke an acute pro-inflammatory response in the liver

• Markus Heine,
• Alexander Bartelt,
• Oliver T. Bruns,
• Denise Bargheer,
• Artur Giemsa,
• Barbara Freund,
• Ludger Scheja,
• Christian Waurisch,
• Alexander Eychmüller,
• Rudolph Reimer,
• Horst Weller,
• Peter Nielsen and
• Joerg Heeren

Beilstein J. Nanotechnol. 2014, 5, 1432–1440, doi:10.3762/bjnano.5.155

• the mononuclear phagocytic system (MPS) [7]. Consequently, larger nanocrystals are exposed to cellular degradation mechanisms of macrophages, e.g., the acidic environment of lysosomes and even more harsh conditions in phagosomes containing also hydrogen peroxide [8]. This might disrupt the surface

Liquid fuel cells

• Grigorii L. Soloveichik

Beilstein J. Nanotechnol. 2014, 5, 1399–1418, doi:10.3762/bjnano.5.153

• cathode catalyst, achieved a maximum power density of 30 mW/cm2 using a 2 M EtOH/2 M KOH fuel mixture, but the cell performance quickly degraded (more than 50% after 200 h) [78]. A cell with hydrogen peroxide as the oxidant and a non-platinum anode showed 44% increase in power density (160 mW/cm2 at 80 °C

• by the formation of a LaNi5 coating on the surface [159]. More than 2000 h of continuous operation at 70% efficiency were demonstrated with a cell with a nanotextured Cu–Ni anode, although with a low current density (14 mA/cm2) [160]. The use of hydrogen peroxide as an oxidant (Equation 20) in a

• direct hydrazine fuel cell fuel cell delivers a high OCP (2.13 V), which can be even higher when the anode is basic and the cathode is acidic. Thus, a cell, with Ni–Pt/C anode and Au/C cathode catalysts, 10 wt % hydrazine/15 wt % NaOH anolyte and 20 wt % hydrogen peroxide/5 wt % H2SO4 catholyte, had a

Review of nanostructured devices for thermoelectric applications

• Giovanni Pennelli

Beilstein J. Nanotechnol. 2014, 5, 1268–1284, doi:10.3762/bjnano.5.141

The study of surface wetting, nanobubbles and boundary slip with an applied voltage: A review

• Yunlu Pan,
• Bharat Bhushan and
• Xuezeng Zhao

Beilstein J. Nanotechnol. 2014, 5, 1042–1065, doi:10.3762/bjnano.5.117

• immersed in piranha solution, which is a 3:1 mixture of sulfuric acid and 30% hydrogen peroxide, for 30 min. Second, the wafers were rinsed with water and ethanol for several times and dried by compressed air. Then the wafers were immersed into a 1% (v/v) OTS (SIO6640.1, Gelest) solution in anhydrous

Pyrite nanoparticles as a Fenton-like reagent for in situ remediation of organic pollutants

• Carolina Gil-Lozano,
• Elisabeth Losa-Adams,
• Alfonso F.-Dávila and
• Luis Gago-Duport

Beilstein J. Nanotechnol. 2014, 5, 855–864, doi:10.3762/bjnano.5.97

• alternative to conventional Fenton procedures for use in wastewater treatment, avoiding the potential risks caused by the release of heavy metals upon dissolution of natural pyrites. Keywords: copper phthalocyanine; Fenton-like reagent; hydrogen peroxide; nanoparticles; pyrite; Introduction There has been