Control of morphology and crystallinity of CNTs in flame synthesis with one-dimensional reaction zone

• Muhammad Hilmi Ibrahim,
• Norikhwan Hamzah,
• Mohd Zamri Mohd Yusop,
• Ni Luh Wulan Septiani and
• Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2023, 14, 741–750, doi:10.3762/bjnano.14.61

• involves cutting a 0.4 mm diameter nickel wire (TEMCO Inc.) into pieces of 50 mm length, followed by cleaning through sonication in an acetone solution for 15 min, and subsequently in distilled water. The wires are then air-dried before being inserted into a flame using a substrate holder (see below in

Cross-sectional Kelvin probe force microscopy on III–V epitaxial multilayer stacks: challenges and perspectives

• Mattia da Lisca,
• José Alvarez,
• James P. Connolly,
• Nicolas Vaissiere,
• Karim Mekhazni,
• Jean Decobert and
• Jean-Paul Kleider

Beilstein J. Nanotechnol. 2023, 14, 725–737, doi:10.3762/bjnano.14.59

• reach a higher doping level around 2.5 × 1019 cm−3. Before starting the KPFM analysis, the sample was cleaved, and a surface cleaning was carried out to expose a clean cross section. We performed a chemical treatment based on sequential ultrasonic baths of acetone, ethanol, and deionized water. The

Carbon nanotube-cellulose ink for rapid solvent identification

• Tiago Amarante,
• Thiago H. R. Cunha,
• Claudio Laudares,
• Ana P. M. Barboza,
• Ana Carolina dos Santos,
• Cíntia L. Pereira,
• Vinicius Ornelas,
• Bernardo R. A. Neves,
• André S. Ferlauto and
• Rodrigo G. Lacerda

Beilstein J. Nanotechnol. 2023, 14, 535–543, doi:10.3762/bjnano.14.44

• differentiate between the liquids. We show that the proposed liquid sensor can classify different liquids, including organic solvents (acetone, chloroform, and different alcohols) and is also able to differentiate low concentrations of glycerin in water (10–100 ppm). We have also investigated the influence of

• electrical responses to DI water, isopropyl alcohol, toluene, ethyl alcohol, chloroform, and acetone are shown in Figure 3a. We set the device temperature to 55 °C to prevent instantaneous evaporation of the more volatile solvents. All solvent measurements were performed on the same MFC/MWCNT transducer

• thermogravimetric analyzer. The system was monitored until the complete evaporation of the liquid, resulting in the curves shown in Figure 5a. The thermal behavior of acetone, chloroform, ethanol, and isopropyl alcohol exhibits significant similarities with the electrical curves presented in Figure 3a, especially

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

• Karolina Cysewska,
• Marcin Łapiński,
• Marcin Zając,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2023, 14, 420–433, doi:10.3762/bjnano.14.34

• , the substrates were cleaned ultrasonically in distilled water (5 min) and acetone (5 min). The reference and counter electrodes were Ag/AgCl (4 M KCl) and platinum mesh, respectively. Distilled water was used for the solutions. The measurement temperature was controlled by a thermostat (Julabo F12

A novel approach to pulsed laser deposition of platinum catalyst on carbon particles for use in polymer electrolyte membrane fuel cells

• Bogusław Budner,
• Wojciech Tokarz,
• Sławomir Dyjak,
• Andrzej Czerwiński,
• Bartosz Bartosewicz and
• Bartłomiej Jankiewicz

Beilstein J. Nanotechnol. 2023, 14, 190–204, doi:10.3762/bjnano.14.19

• water and acetone, and dried at 80 °C to constant weight. The black carbon product was referred to as a C-11. The research assumed the synthesis and use of a carbon material with a high degree of graphitization as carbon support, which is more resistant to the high-temperature oxidation process in a

Formation of nanoflowers: Au and Ni silicide cores surrounded by SiO_x branches

• Feitao Li,
• Siyao Wan,
• Dong Wang and
• Peter Schaaf

Beilstein J. Nanotechnol. 2023, 14, 133–140, doi:10.3762/bjnano.14.14

• . A 300 nm oxide layer was thermally grown to prevent interactions between Si and the subsequently deposited layer materials, and after that, the wafer was cut into small squares of approximately 1 cm × 1 cm. After cleaning in acetone, isopropanol, and deionized water and drying with nitrogen gas, the

Liquid phase exfoliation of talc: effect of the medium on flake size and shape

• Samuel M. Sousa,
• Helane L. O. Morais,
• Joyce C. C. Santos,
• Ana Paula M. Barboza,
• Bernardo R. A. Neves,
• Elisângela S. Pinto and
• Mariana C. Prado

Beilstein J. Nanotechnol. 2023, 14, 68–78, doi:10.3762/bjnano.14.8

• chloroform and then the solution was left to decant. The supernatant was discarded, and the process was repeated with acetone and water. Finally, the powder was collected and dried for 12 h at 60 °C in an oven. The purified talcum powder was placed in an aqueous solution of the surfactant of choice (or pure

Gap-directed chemical lift-off lithographic nanoarchitectonics for arbitrary sub-micrometer patterning

• Chang-Ming Wang,
• Hong-Sheng Chan,
• Chia-Li Liao,
• Che-Wei Chang and
• Wei-Ssu Liao

Beilstein J. Nanotechnol. 2023, 14, 34–44, doi:10.3762/bjnano.14.4

• Grove, PA, USA). Bovine serum albumin (BSA) and 10× phosphate buffered saline (PBS, contains 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). Ethanol (99.5 wt %), acetone (99.5 wt %), and isopropanol (99.9 wt %) were

• , sequentially rinsed with acetone and isopropanol, and blown dry with nitrogen gas. To conduct CLL processes, a PDMS stamp was activated by 30 s of oxygen plasma exposure at a power of 18 W with 0.5 mbar oxygen flow. The stamp was then conformally sealed onto the SAM-modified Au substrate for 2 h under ambient

Electrical and optical enhancement of ITO/Mo bilayer thin films via laser annealing

• Abdelbaki Hacini,
• Ahmad Hadi Ali,
• Nurul Nadia Adnan and
• Nafarizal Nayan

Beilstein J. Nanotechnol. 2022, 13, 1589–1595, doi:10.3762/bjnano.13.133

• pieces and cleaned to suit the characterization equipment. The Si substrates were ultrasonically cleaned using acetone, isopropyl alcohol, and distilled water. The glass substrates were cleaned using Decon-90 cleaner. The glass and Si samples were dried with nitrogen gas and treated for 10 min in a

Photoelectrochemical water oxidation over TiO₂ nanotubes modified with MoS₂ and g-C₃N₄

• Phuong Hoang Nguyen,
• Thi Minh Cao,
• Tho Truong Nguyen,
• Hien Duy Tong and
• Viet Van Pham

Beilstein J. Nanotechnol. 2022, 13, 1541–1550, doi:10.3762/bjnano.13.127

• explain clearly the difference between these composite materials Experimental Materials and chemicals Chemicals and materials for the synthesis and characterization include Ti foil (1 cm × 2 cm), hydrochloric acid (HCl), sodium hydroxide (NaOH), DI water, acetone ((CH3)2CO), ethanol (C2H5OH), ammonium

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

• Mitzi J. Ramírez-Hernández,
• Mario Valera-Zaragoza,
• Omar Viñas-Bravo,
• Ariana A. Huerta-Heredia,
• Miguel A. Peña-Rico,
• Erick A. Juarez-Arellano,
• David Paniagua-Vega,
• Eduardo Ramírez-Vargas and
• Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

• . Transmission electron microscopy images were acquired on a JEOL 1010 microscope, with an accelerating voltage of 80 kV. For that, samples were pre-prepared in acetone and sonicated for 20 min, then dried at room temperature. Thermogravimetric analysis was performed on a Perkin Elmer STA 6000 simultaneous

Supramolecular assembly of pentamidine and polymeric cyclodextrin bimetallic core–shell nanoarchitectures

• Alexandru-Milentie Hada,
• Nina Burduja,
• Marco Abbate,
• Claudio Stagno,
• Guy Caljon,
• Louis Maes,
• Nicola Micale,
• Massimiliano Cordaro,
• Angela Scala,
• Antonino Mazzaglia and
• Anna Piperno

Beilstein J. Nanotechnol. 2022, 13, 1361–1369, doi:10.3762/bjnano.13.112

• at rt ≈ 25 °C. The chemical shifts are expressed in ppm using acetone as an internal standard. NMR analyses and Raman analysis (Supporting Information File 1, Figure S1) were carried out according to previously reported protocols [14][30]. Preparation of PolyCD Au NPs and PolyCD Au@Ag BMNPs NanoG and

Laser-processed antiadhesive bionic combs for handling nanofibers inspired by nanostructures on the legs of cribellate spiders

• Sebastian Lifka,
• Kristóf Harsányi,
• Erich Baumgartner,
• Lukas Pichler,
• Dariya Baiko,
• Karsten Wasmuth,
• Johannes Heitz,
• Marco Meyer,
• Anna-Christin Joel,
• Jörn Bonse and
• Werner Baumgartner

Beilstein J. Nanotechnol. 2022, 13, 1268–1283, doi:10.3762/bjnano.13.105

• inter-line separation of Δ = 5 µm. The linear laser beam polarization was kept parallel to the scan direction. Immediately after laser processing, the samples were cleaned for 5 min in acetone in an ultrasonic bath and stored in a desiccator. Figure 10 indicates the presence of the LIPSS at the entire

Interaction between honeybee mandibles and propolis

• Leonie Saccardi,
• Franz Brümmer,
• Jonas Schiebl,
• Oliver Schwarz,
• Alexander Kovalev and
• Stanislav Gorb

Beilstein J. Nanotechnol. 2022, 13, 958–974, doi:10.3762/bjnano.13.84

• ) equipped with a camera (Leica DFC420) prior to further experiments. For the following anatomical studies, mandibles of nectar collector and hive bees were then washed with acetone and water. They were air-dried, mounted on holders (inside up), sputter-coated with a 10 nm thick layer of gold–palladium and

• % ethanol, Carl Roth GmbH & Co. KG), or acetone (Rotipuran® ≥99.8%, p. a. ACS ISO, Carl Roth GmbH & Co. KG) for 5 min followed by 5 min washing with distilled water. Distilled water was used as an agent for removing hydrophilic substances from the surface of bee mandibles. Chloroform and acetone are known

• thus analysed using various imaging methods. Anatomy of the bee mandible The anatomy of the worker bee mandibles (Apis mellifera) was studied using a binocular microscope and SEM on acetone-cleaned specimens. Mandibles have a strong stem at the proximal end and a concave, spoon-shaped tip at the distal

Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions

• Elena V. Gorb,
• Iryna A. Kozeretska and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2022, 13, 807–816, doi:10.3762/bjnano.13.71

• . antarctica plant, which are usually exposed to the environment, using cryo scanning electron microscopy (cryo-SEM) allowing for a high-resolution imaging of frozen and fractured samples in native condition, that is, without treatment in strong solvents, such as ethanol or acetone, usually needed in the

Optimizing PMMA solutions to suppress contamination in the transfer of CVD graphene for batch production

• Chun-Da Liao,
• Andrea Capasso,
• Tiago Queirós,
• Telma Domingues,
• Fatima Cerqueira,
• Nicoleta Nicoara,
• Jérôme Borme,
• Paulo Freitas and
• Pedro Alpuim

Beilstein J. Nanotechnol. 2022, 13, 796–806, doi:10.3762/bjnano.13.70

• (larger than 2.5 µm) in the images. Micrographs taken on 650 × 500 µm2 areas were compared (Figure 1a–f). The amount of PMMA residues appears to be directly related to the PMMA concentration. A1 showed very little residues (they can be almost completely removed using acetone) and low mechanical strength

• that the PMMA mixture features good mechanical strength and cleanness (i.e., the acetone bath can thoroughly remove it). The transferred graphene samples were investigated via Raman spectroscopy to evaluate crystallinity, layer number, and structural defect level [23]. The relative intensities of the G

• on the graphene surface mainly feature three peaks resulting from C–C bonds and carbon–oxygen-related bonds (i.e., methoxy and carboxy functional groups). After PMMA has been removed in the acetone bath, the peak of the C–H bond can rarely be observed because of a broader merger with the peak of sp3

Efficient liquid exfoliation of KP₁₅ nanowires aided by Hansen's empirical theory

• Zhaoxuan Huang,
• Zhikang Jiang,
• Nan Tian,
• Disheng Yao,
• Fei Long,
• Yanhan Yang and
• Danmin Liu

Beilstein J. Nanotechnol. 2022, 13, 788–795, doi:10.3762/bjnano.13.69

• were first obtained. Based on the Hansen's empirical theory, the concentration of liquid-exfoliated KP15 nanowires was improved to 0.0458 mg·mL−1 by a solution containing 50% water and 50% acetone. Approximately 79% of the KP15 nanowires had a thickness value below 50 nm and 60.9% of them had a width

• this work. By using a solution containing 50% water and 50% acetone, the exfoliation efficiency of KP15 was effectively improved. Our results show that 79% of the KP15 nanowires had thickness values below 50 nm and 60.9% of these nanowires had width values below 100 nm. The thinnest KP15 nanowires

• absorption coefficient of KP15 is 3.86 ± 0.13 mL·mg−1·cm−1. We selected 20 common solvents, including benzyl benzoate, toluene, ethyl acetate, acetone, alcohol, butyrolactone, N,N'-dimethylpropyleneurea, bromobenzene, cyclopentanone, N-dodecyl-2-pyrrolidone, glycol, vinyl acetate, hexane, isopropyl alcohol

Gelatin nanoparticles with tunable mechanical properties: effect of crosslinking time and loading

• Agnes-Valencia Weiss,
• Daniel Schorr,
• Julia K. Metz,
• Metin Yildirim,
• Saeed Ahmad Khan and
• Marc Schneider

Beilstein J. Nanotechnol. 2022, 13, 778–787, doi:10.3762/bjnano.13.68

• nanoprecipitation method described in [17]. In brief, 20 mg gelatin was dissolved in 1 mL of deionized water at 50 °C and added to the antisolvent phase, consisting of 2.8% poloxamer 188 dissolved in a mixture of acetone and deionized water in a ratio of 15:1, with an injection rate of 0.25 mL/min using a syringe

• pump (Legato 200, KD Scientific Inc., Holliston, MA, USA). Immediately after completion of GNP formation, the freshly prepared particles were stabilized by adding 537 µL of 1.74% glutaraldehyde in acetone. After incubation times of 0.5, 1.0, 2.0, and 3.0 h the crosslinking reaction was stopped [22

Hierarchical Bi₂WO₆/TiO₂-nanotube composites derived from natural cellulose for visible-light photocatalytic treatment of pollutants

• Zehao Lin,
• Zhan Yang and
• Jianguo Huang

Beilstein J. Nanotechnol. 2022, 13, 745–762, doi:10.3762/bjnano.13.66

• , anhydrous ethanol, acetone, barium sulfate (BaSO4), rhodamine B, isopropyl alcohol (IPA), N-methylpyrrolidone, ethylenediaminetetraacetic acid disodium salt (EDTA-2Na), silver nitrate (AgNO3), sodium sulfate (Na2SO4), ethylene glycol (EG), potassium dichromate (K2Cr2O7), phosphoric acid (H3PO4), and

• spectrophotometer. The concentration of the Cr(VI) aqueous solution was determined by the diphenylcarbazide colorimetric method as follows. 1,5-diphenylcarbazide (0.2 g) was dissolved in acetone/water (100.0 mL, v/v = 1:1) to form solution A, while H3PO4 (20.0 mL) and H2SO4 (20.0 mL) were homogeneously mixed in

A chemiresistive sensor array based on polyaniline nanocomposites and machine learning classification

• Jiri Kroutil,
• Alexandr Laposa,
• Ali Ahmad,
• Jan Voves,
• Vojtech Povolny,
• Ladislav Klimsa,
• Marina Davydova and
• Miroslav Husak

Beilstein J. Nanotechnol. 2022, 13, 411–423, doi:10.3762/bjnano.13.34

• 1999/2, 182 21 Prague, Czech Republic 10.3762/bjnano.13.34 Abstract The selective detection of ammonia (NH3), nitrogen dioxide (NO2), carbon oxides (CO2 and CO), acetone ((CH3)2CO), and toluene (C6H5CH3) is investigated by means of a gas sensor array based on polyaniline nanocomposites. The array

• between VOCs, supported by a vector machine to distinguish between acetone, nitrogen dioxide, and ammonia, and by a neutral network model to distinguish between ammonia and formaldehyde gas [7][8][9]. In our previous work [10], we demonstrated a combination of organic (polyaniline, PANI) and inorganic

• dioxide, nitrogen dioxide, carbon monoxide, acetone, and toluene). Moreover, the obtained data were used for machine learning classification. Many pattern recognition models based on intuitive, linear and nonlinear supervised techniques have been explored in E-nose data [11][12]. A considerable number of

Systematic studies into uniform synthetic protein nanoparticles

• Nahal Habibi,
• Ava Mauser,
• Jeffery E. Raymond and
• Joerg Lahann

Beilstein J. Nanotechnol. 2022, 13, 274–283, doi:10.3762/bjnano.13.22

• as poorly defined physical properties and/or stability in the bloodstream [14]. Desolvation methods have been used to prepare various therapeutic protein nanoparticles [15][16][17]. The desolvation process requires the addition of desolvating agents, such as ethanol or acetone, to induce changes in

Impact of device design on the electronic and optoelectronic properties of integrated Ru-terpyridine complexes

• Max Mennicken,
• Sophia Katharina Peter,
• Corinna Kaulen,
• Ulrich Simon and
• Silvia Karthäuser

Beilstein J. Nanotechnol. 2022, 13, 219–229, doi:10.3762/bjnano.13.16

• precursor [Ru(acetone)6](PF6)3 (Ru-PF6) were prepared according to procedures previously described [15][19][25][26][27]. The analysis of the prepared substances, including 1H NMR, UV–vis spectroscopy and mass spectrosmetry, display a high purity [15]. The molecular formulas of the chemical compounds are

• hope that our results inspire further developments in this field. Stepwise Ru(TP)2-complex wire growth by alternate addition of the Ru-PF6 precursor in ethanol and BTP solution, (i)–(iv) see text above; L = ligand (acetone or ethoxide anion). Schematic illustration of Ru(MPTP)2–AuNP (upper part) and Ru

Piezoelectric nanogenerator for bio-mechanical strain measurement

• Zafar Javed,
• Lybah Rafiq,
• Muhammad Anwaar Nazeer,
• Saqib Siddiqui,
• Muhammad Babar Ramzan,
• Muhammad Qamar Khan and
• Muhammad Salman Naeem

Beilstein J. Nanotechnol. 2022, 13, 192–200, doi:10.3762/bjnano.13.14

• (DMF) and acetone from Sigma-Aldrich were used as solvents without any further purification. A conductive tape was used to make electrodes. Knitted fabric was used for the integration of the nanofibrous mesh for human body angle measurement. Fabrication of the nanofibrous mesh and its characterization

• PVDF solutions with varying concentrations (12, 14, and 16 wt %) were prepared in an acetone/DMF mixture (1:2.3 by volume). PVDF was dissolved in the acetone/DMF mixture at 120 °C in a sealed container under stirring for 4 h followed by incubating the solutions at room temperature for 24 h before

Thermal oxidation process on Si(113)-(3 × 2) investigated using high-temperature scanning tunneling microscopy

• Hiroya Tanaka,
• Shinya Ohno,
• Kazushi Miki and
• Masatoshi Tanaka

Beilstein J. Nanotechnol. 2022, 13, 172–181, doi:10.3762/bjnano.13.12

• oxidation on Si(113) using our VT-STM. Experimental The Si(113) sample used was a p-type (B-doped) wafer with a resistivity of 1–10 Ω·cm. Sacrificed oxidation was performed to produce the oxide with a thickness of 200 nm using an oxidation furnace. The sample was cut to 6.5 × 1.5 mm2, rinsed with acetone to

• measurements at high temperatures. The PtIr and Nb tips were rinsed with acetone and simply cut using a nipper. The W tip was also cut using a nipper before it was introduced to the UHV chamber. It was then heated to 1270 K with electron bombardment to remove the oxide. Experiments were carried out in a UHV

Tin dioxide nanomaterial-based photocatalysts for nitrogen oxide oxidation: a review

• Viet Van Pham,
• Hong-Huy Tran,
• Thao Kim Truong and
• Thi Minh Cao

Beilstein J. Nanotechnol. 2022, 13, 96–113, doi:10.3762/bjnano.13.7

• and acetone [75]. The presence of graphene induces the formation of SnO2 and introduces Sn vacancies, which supports the electron transfer from the CB of Zn2SnO4 to oxygen under visible light irradiation (Figure 12). The authors only used a visible light LED with low power (3 W) and obtained a high

• from [75], Chemical Engineering Journal, vol. 336, by Li, Y.; Wu, X.; Ho, W.; Lv, K.; Li, Q.; Li, M.; Lee, S. C. “Graphene-induced formation of visible-light-responsive SnO2-Zn2SnO4 Z-scheme photocatalyst with surface vacancy for the enhanced photoreactivity towards NO and acetone oxidation”, pages 200