Preparation of micro/nanopatterned gelatins crosslinked with genipin for biocompatible dental implants

• Reika Makita,
• Tsukasa Akasaka,
• Seiichi Tamagawa,
• Yasuhiro Yoshida,
• Saori Miyata,
• Hirofumi Miyaji and
• Tsutomu Sugaya

Beilstein J. Nanotechnol. 2018, 9, 1735–1754, doi:10.3762/bjnano.9.165

Controllable one-pot synthesis of uniform colloidal TiO₂ particles in a mixed solvent solution for photocatalysis

• Jong Tae Moon,
• Seung Ki Lee and
• Ji Bong Joo

Beilstein J. Nanotechnol. 2018, 9, 1715–1727, doi:10.3762/bjnano.9.163

• good example for elucidating a rational design for more efficient colloidal TiO2-based photocatalysts. Experimental Materials and Chemicals: Ethyl alcohol (C2H5OH, 99.9%, anhydrous), acetonitrile (ACN, CH3CN 99.9%, special guaranteed grade) and ammonium hydroxide (NH4OH, 28%) were obtained from Daejung

Closed polymer containers based on phenylboronic esters of resorcinarenes

• Tatiana Yu. Sergeeva,
• Rezeda K. Mukhitova,
• Irek R. Nizameev,
• Marsil K. Kadirov,
• Polina D. Klypina,
• Albina Y. Ziganshina and
• Alexander I. Konovalov

Beilstein J. Nanotechnol. 2018, 9, 1594–1601, doi:10.3762/bjnano.9.151

• alcohol moieties to form the glucose boronic ester [45]. DLS data show that indeed glucose destroys p(SRA-B). When glucose is added to the p(SRA-B) solution, the PDI increases from 0.23 to 0.47, and multiple peaks appear in the range of 40–1000 nm (see Supporting Information File 1, Figure S8). p(SRA-B

Cr(VI) remediation from aqueous environment through modified-TiO₂-mediated photocatalytic reduction

• Rashmi Acharya,
• Brundabana Naik and
• Kulamani Parida

Beilstein J. Nanotechnol. 2018, 9, 1448–1470, doi:10.3762/bjnano.9.137

• with given organic compounds under suitable reaction conditions facilitates the selective organic transformations. For example, Hu et al. demonstrated that photocatalytic, selective oxidation of alcohol to aldehyde can be carried out by hVB+ and O2•− on the surface of CdS/TiO2 nanocomposites under

Electrostatically actuated encased cantilevers

• Benoit X. E. Desbiolles,
• Gabriela Furlan,
• Adam M. Schwartzberg,
• Paul D. Ashby and
• Dominik Ziegler

Beilstein J. Nanotechnol. 2018, 9, 1381–1389, doi:10.3762/bjnano.9.130

• , we evaporate a 30 nm thick gold layer (2) that is the excitation electrode. Using a femtosecond pulsed laser we ablate a ca. 1 μm wide opening (3) to access the sacrificial methacrylate layer and etch it using organic solvents (1:3, methyl isobutyl ketone/isopropyl alcohol) during the subsequent

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

• morphology of the film shows a layered structure. Similarly, Wu et al. fabricated rGO/poly(vinyl alcohol) composite films, and they also found that the cross-section of composite films exhibit a gradient, layered structure [32]. Figure 3c shows XRD patterns of the HACC-rGO powder and the deposited HACC-rGO

• deposited HACC-rGO/CS films with different shapes. Furthermore, the deposited HACC-rGO/CS films with different shapes were fabricated on titanium plates. Briefly, a titanium plate was coated with an alcohol-soluble ink (mainly composed of polyvinyl butyral resin) at the desired region as the protective

Room-temperature single-photon emitters in titanium dioxide optical defects

• Kelvin Chung,
• Yu H. Leung,
• Chap H. To,
• Aleksandra B. Djurišić and
• Snjezana Tomljenovic-Hanic

Beilstein J. Nanotechnol. 2018, 9, 1085–1094, doi:10.3762/bjnano.9.100

• of 99% with an average particle size of 30 nm (45 nm). Four nanopowder samples were prepared: anatase and rutile suspended in deionised (DI) water, and anatase and rutile suspended in isopropyl alcohol (IPA). For the nanopowder–DI water mixture, 21.0 (20.6) ± 0.2 mg of anatase (rutile) nanopowder was

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

• , 90, 95 and 99.5% (v/v)) for 10 min each. Then, samples were washed with tert-butyl alcohol three times, soaked in it and dried under vacuum. Samples were sputtered with platinum for 60 s from three directions and observed by SEM (JSM-7400F, JEOL). Antifungal activity test The antifungal tests were

The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene

• Egor A. Kolesov,
• Mikhail S. Tivanov,
• Olga V. Korolik,
• Olesya O. Kapitanova,
• Xiao Fu,
• Hak Dong Cho,
• Tae Won Kang and
• Gennady N Panin

Beilstein J. Nanotechnol. 2018, 9, 704–710, doi:10.3762/bjnano.9.65

• /isopropyl alcohol mixture was used to wash graphene from etching products [31]. PMMA was removed by submerging the sample in glacial acetic acid (extra pure) [32] for 4 h. Graphene, doped with nitrogen, was prepared using a nitrogen-plasma treatment described elsewhere [33]. The Raman spectra were obtained

Optimisation of purification techniques for the preparation of large-volume aqueous solar nanoparticle inks for organic photovoltaics

• Furqan Almyahi,
• Thomas R. Andersen,
• Nathan A. Cooling,
• Natalie P. Holmes,
• Matthew J. Griffith,
• Krishna Feron,
• Xiaojing Zhou,
• Warwick J. Belcher and
• Paul C. Dastoor

Beilstein J. Nanotechnol. 2018, 9, 649–659, doi:10.3762/bjnano.9.60

• have been developed for transferring currently utilized semiconducting macromolecules into green solvents: Method 1: The reprecipitation method, herein the semiconductive materials are dissolved in organic solvent which is added to a vigorously stirring alcohol causing the semiconductive materials to

Mechanistic insights into plasmonic photocatalysts in utilizing visible light

• Kah Hon Leong,
• Azrina Abd Aziz,
• Lan Ching Sim,
• Pichiah Saravanan,
• Min Jang and
• Detlef Bahnemann

Beilstein J. Nanotechnol. 2018, 9, 628–648, doi:10.3762/bjnano.9.59

• photocatalysis reactions, including oxidation of benzyl alcohol, hydrogenation of nitrobenzene and the Suzuki coupling reaction. The strong electrical field intensity at 1500 nm (Figure 19) reveals that the LSPR is more significant when the irradiation wavelength is near to the Cu7S4 LSPR peak [111]. Likewise

• also reported the use of Ag NPs to remove phenol and drive oxidation of benzyl alcohol to benzaldehyde under UV light. This verifies the role of the LSPR effect and interband transition of Ag NPs in activating organic molecules for oxidation under UV–vis irradiation [169]. Au NPs are more suitable for

Sensing behavior of flower-shaped MoS₂ nanoflakes: case study with methanol and xylene

• Maryam Barzegar,
• Masoud Berahman and
• Azam Iraji zad

Beilstein J. Nanotechnol. 2018, 9, 608–615, doi:10.3762/bjnano.9.57

• . The substrates were immersed in acetone and isopropyl alcohol and sonicated for 15 min to remove any undesired surface ions. A 200 nm Pt film as a snake-shaped heater was sputtered on the back of the substrate using a sputter coater from Nanostructured Coatings Co. To fabricate the sensor device

Fabrication and photoactivity of ionic liquid–TiO₂ structures for efficient visible-light-induced photocatalytic decomposition of organic pollutants in aqueous phase

• Anna Gołąbiewska,
• Marta Paszkiewicz-Gawron,
• Aleksandra Sadzińska,
• Wojciech Lisowski,
• Ewelina Grabowska,
• Adriana Zaleska-Medynska and
• Justyna Łuczak

Beilstein J. Nanotechnol. 2018, 9, 580–590, doi:10.3762/bjnano.9.54

• the IL–TiO2 composites, for example, for photo-electrochemical water splitting [26][27], photo-oxidation of benzyl alcohol [12], phenol [28], degradation of chlorophenol [17][29], reduction of Cr6+ to Cr3+ [30] and the photocatalytic desulfurization of diesel oil [31]. Nevertheless, in most of these

• , indicating that h+ might play a negligible role in the phenol photo-oxidation process. Probably the positively charged hole could catch OH− to yield hydroxyl radicals [58]. In the case of the TiO2_T(1:3) sample, when tert-butyl alcohol (•OH scavenger) was added to the phenol solution, 63% of phenol was

• degraded, indicating that OH radicals play an insignificant role in the degradation process. Interestingly, for the TiO2_O(1:3) photocatalyst, the addition of AgNO3 and tert-butyl alcohol increased the effectiveness of the photocatalytic process. As explained by Liu et al., AgNO3 may be capable of

Ultralight super-hydrophobic carbon aerogels based on cellulose nanofibers/poly(vinyl alcohol)/graphene oxide (CNFs/PVA/GO) for highly effective oil–water separation

• Zhaoyang Xu,
• Huan Zhou,
• Sicong Tan,
• Xiangdong Jiang,
• Weibing Wu,
• Jiangtao Shi and
• Peng Chen

Beilstein J. Nanotechnol. 2018, 9, 508–519, doi:10.3762/bjnano.9.49

• 10.3762/bjnano.9.49 Abstract With the worsening of the oil-product pollution problem, oil–water separation has attracted increased attention in recent years. In this study, a porous three-dimensional (3D) carbon aerogel based on cellulose nanofibers (CNFs), poly(vinyl alcohol) (PVA) and graphene oxide (GO

• facile preparation process of carbon aerogels, these materials are viable candidates for use in oil–water separation and environmental protection. Keywords: 3D network structure; carbon aerogel; cellulose nanofibers; graphene oxide; oil absorption; poly(vinyl alcohol); Introduction In recent years, oil

• Zhejiang Lishui, China. Graphite powder (40 μm), used as the source for GO, was obtained from Qingdao Henglide Graphite Co., Ltd. Poly(vinyl alcohol) (PVA, Mw ≈ 95,000 g/mol), glutaraldehyde (GA, crosslinker, 25 wt % in H2O), potassium hydroxide (KOH), Sudan III, acetic acid (CH3COOH), hydrogen peroxide

Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy

• Sujit Kumar Dora,
• Kerstin Koch,
• Wilhelm Barthlott and
• Klaus Wandelt

Beilstein J. Nanotechnol. 2018, 9, 468–481, doi:10.3762/bjnano.9.45

• chemical and morphological groups [20]. They are divided in to tubules containing i) high amounts of secondary alcohol, e.g., nonacosan-10-ol and its homologues; ii) high amounts of alkanediols and iii) high amounts of β-diketones. In this work, tubules of type ii containing predominantly diols [21] are

Facile synthesis of ZnFe₂O₄ photocatalysts for decolourization of organic dyes under solar irradiation

• Arjun Behera,
• Debasmita Kandi,
• Sanjit Manohar Majhi,
• Satyabadi Martha and
• Kulamani Parida

Beilstein J. Nanotechnol. 2018, 9, 436–446, doi:10.3762/bjnano.9.42

• detected by using trapping reagents such as dimethyl sulfoxide, isopropyl alcohol, ethylenediaminetetraacetic acid, p-benzoquinone for electrons, hydroxyl radicals (•OH), holes (h+), and superoxide (•O2−) radicals, respectively [35]. Figure 11b,c clearly shows that hydroxyl and superoxide radicals play a

• major role in the decolourization of Congo red solution. When isopropyl alcohol, a •OH scavenger, was added to the Congo red solution, the rate of decolourization was decreased. When p-benzoquinone was added, the same behaviour was observed. Thus, it can be concluded that •OH and •O2− are the active

Engineering of oriented carbon nanotubes in composite materials

• Razieh Beigmoradi,
• Abdolreza Samimi and
• Davod Mohebbi-Kalhori

Beilstein J. Nanotechnol. 2018, 9, 415–435, doi:10.3762/bjnano.9.41

• recommended for producing concentrated and aligned composite nanomaterials. In this method SWCNTs are initially dispersed in an aqueous solution of poly(vinyl alcohol) (PVA) and are stabilized using surfactants. By applying the wet spinning method, a web of nanocomposite material fibers is produced where the

• . Winding onto a rotating mandrel. Step 3. Fixing with a matrix spray. Schematic of the layer-by-layer deposition process. Step 1. Wetting a paper tape with water/poly(vinyl alcohol) (PVA). Step 2. Introducing the assembled CNT layer in the reactor. Step 3. Winding up after drying. Reproduced with

Temperature-tunable lasing from dye-doped chiral microdroplets encapsulated in a thin polymeric film

• Gia Petriashvili,
• Mauro Daniel Luigi Bruno,
• Maria Penelope De Santo and
• Riccardo Barberi

Beilstein J. Nanotechnol. 2018, 9, 379–383, doi:10.3762/bjnano.9.37

• from an emulsion having a mixture of water and polyvinyl alcohol as isotropic matrix has been reported. After the water evaporation, a polymeric film in which the microdroplets are encapsulated has been obtained. Bragg-type laser emission has been recorded from the emulsion as well as from the thin

• : 70.5 wt % ZLI-1939 + 29.5 wt % ZLI-811. The chiral dopant is chosen for its well-known temperature-dependent solubility [9]. The chiral mixture is confined inside a 36 μm cell the internal surfaces of which are covered with a rubbed thin layer of polyvinyl alcohol (PVA). The PVA (Sigma-Aldrich) is

Nanoparticle delivery to metastatic breast cancer cells by nanoengineered mesenchymal stem cells

• Liga Saulite,
• Karlis Pleiko,
• Ineta Popena,
• Dominyka Dapkute,
• Ricardas Rotomskis and
• Una Riekstina

Beilstein J. Nanotechnol. 2018, 9, 321–332, doi:10.3762/bjnano.9.32

• natural compounds, such as chitosan and hyaluronic acid, or synthetic agents, such as polyHEMA and poly(vinyl alcohol) (PVA) [14][36]. PolyHEMA has been widely used to induce spheroid formation in cancer cells and cells from healthy tissue [37][38]. Notably, the cell morphology and even phenotype changes

Synthesis and characterization of electrospun molybdenum dioxide–carbon nanofibers as sulfur matrix additives for rechargeable lithium–sulfur battery applications

• Ruiyuan Zhuang,
• Shanshan Yao,
• Maoxiang Jing,
• Xiangqian Shen,
• Jun Xiang,
• Tianbao Li,
• Kesong Xiao and
• Shibiao Qin

Beilstein J. Nanotechnol. 2018, 9, 262–270, doi:10.3762/bjnano.9.28

• known to be active in numerous reactions associated with noble metals, such as CO2 hydrogenation, water gas shift, alcohol synthesis and hydrazine decomposition. Here, CH4/H2 atmosphere was not used during calcination, which was much safer and facile when compared to other methods [27]. Raman

Electron-driven and thermal chemistry during water-assisted purification of platinum nanomaterials generated by electron beam induced deposition

• Ziyan Warneke,
• Markus Rohdenburg,
• Jonas Warneke,
• Janina Kopyra and
• Petra Swiderek

Beilstein J. Nanotechnol. 2018, 9, 77–90, doi:10.3762/bjnano.9.10

• , CO is produced during electron-driven degradation of methanol which is the smallest alcohol [35]. Alcohols, on the other hand, can be formed through electron-initiated reactions. This was demonstrated for a condensed mixture of ethylene (C2H4) and H2O [31]. Electron exposure initiated addition of H2O

• released from the precursor upon electron-driven proton transfer (see above). The resulting alcohol would then further decompose to release CO. Beside formation of an alcohol, other types of reactions are conceivable. Representative isomers of the different types of reaction products are listed in Table 1

• exposure at E0 above the ionization threshold. Table 1 also includes characteristic mass spectrometric signals of these different types of compounds as a basis for the analysis of our experimental product identification. To investigate if an alcohol is indeed formed, a mixed condensed layer of

The role of ligands in coinage-metal nanoparticles for electronics

• Ioannis Kanelidis and
• Tobias Kraus

Beilstein J. Nanotechnol. 2017, 8, 2625–2639, doi:10.3762/bjnano.8.263

• . A solution containing AgNO3 and poly(vinyl alcohol) (PVA) was cast onto silicate glass. Evaporation of the solvent (water) led to the formation of a fern-like structure of PVA and AgNO3. A heat treatment reduced the silver precursor to metal structures that PVA stabilized in situ through its

Nanoprofilometry study of focal conic domain structures in a liquid crystalline free surface

• Anna N. Bagdinova,
• Evgeny I. Demikhov,
• Nataliya G. Borisenko and
• Sergei M. Tolokonnikov

Beilstein J. Nanotechnol. 2017, 8, 2544–2551, doi:10.3762/bjnano.8.254

• and a decrease in the intensity of the back reflection of light. This is the reason that a stable interference pattern could not be established. Figure 3 demonstrates a 8CB smectic-A phase surface at 28 °С on the glass substrate. Before use, the quartz glass substrate was cleaned with an alcohol

Refractive index sensing and surface-enhanced Raman spectroscopy using silver–gold layered bimetallic plasmonic crystals

• Somi Kang,
• Sean E. Lehman,
• Matthew V. Schulmerich,
• An-Phong Le,
• Tae-woo Lee,
• Stephen K. Gray,
• Rohit Bhargava and
• Ralph G. Nuzzo

Beilstein J. Nanotechnol. 2017, 8, 2492–2503, doi:10.3762/bjnano.8.249

• benzenethiol (BT) (99.99 %) were purchased from Aldrich. 100% ethyl alcohol (Decon) was used to solvate benzenethiol. Ultrapure water (18.2 MΩ·cm) was generated using a Millipore Milli-Q Academic A-10 system and used to prepare the PEG buffer (0–5.6 wt %) solutions. Plasmonic crystal fabrication via soft

Surfactant-induced enhancement of droplet adhesion in superhydrophobic soybean (Glycine max L.) leaves

• Oliver Hagedorn,
• Ingo Fleute-Schlachter,
• Hans Georg Mainx,
• Viktoria Zeisler-Diehl and
• Kerstin Koch

Beilstein J. Nanotechnol. 2017, 8, 2345–2356, doi:10.3762/bjnano.8.234

• with a lower HLB value led to a greater dissolution of the wax crystals built up by triacontanol by interacting with the nonpolar parts of the alcohol molecules. Most important for the increase in droplet adhesion is the above-discussed dissolution of wax crystals, which leads to a transition of the

• mainly of the primary alcohol triacosan-1-ol and octacosan-1-ol. An improvement of surface wetting and droplet adhesion was achieved by adding surfactants SBO 10, XP ED 0075 XP ED 28-13 with higher HLB values to the liquid. Such surfactants induce dissolution of the wax crystals and increase the droplet