Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth

• Landon J. Brower,
• Lauren K. Gentry,
• Amanda L. Napier and
• Mary E. Anderson

Beilstein J. Nanotechnol. 2017, 8, 2307–2314, doi:10.3762/bjnano.8.230

• Landon J. Brower Lauren K. Gentry Amanda L. Napier Mary E. Anderson Hope College, Department of Chemistry, Holland, MI 49422, United States 10.3762/bjnano.8.230 Abstract Integration of surface-anchored metal-organic frameworks (surMOFs) within hierarchical architectures is necessary for potential

In situ controlled rapid growth of novel high activity TiB₂/(TiB₂–TiN) hierarchical/heterostructured nanocomposites

• Jilin Wang,
• Hejie Liao,
• Yuchun Ji,
• Fei Long,
• Yunle Gu,
• Zhengguang Zou,
• Weimin Wang and
• Zhengyi Fu

Beilstein J. Nanotechnol. 2017, 8, 2116–2125, doi:10.3762/bjnano.8.211

• -temperature synthesis (RC-SHS) method was developed for the in situ controlled synthesis of novel, high activity TiB2/(TiB2–TiN) hierarchical/heterostructured nanocomposites using TiO2, Mg, B2O3, KBH4 and NH4NO3 as raw materials. The as-synthesized samples were characterized using X-ray diffraction (XRD

• ), scanning electron microscope (SEM), X-ray energy dispersive spectroscopy (EDX), transition electron microscopy (TEM), high-resolution TEM (HRTEM) and selected-area electron diffraction (SAED). The obtained TiB2/TiN hierarchical/heterostructured nanocomposites demonstrated an average particle size of 100

• the proposed growth mechanism of the TiB2/(TiB2–TiN) hierarchical/heterostructured nanocomposites were further discussed. Keywords: chemical activity; hierarchical/heterostructures; self-propagating high-temperature synthesis; TiB2; TiN; Introduction Refractory materials such as borides, nitrides

High-stress study of bioinspired multifunctional PEDOT:PSS/nanoclay nanocomposites using AFM, SEM and numerical simulation

• Alfredo J. Diaz,
• Hanaul Noh,
• Tobias Meier and
• Santiago D. Solares

Beilstein J. Nanotechnol. 2017, 8, 2069–2082, doi:10.3762/bjnano.8.207

• Alfredo J. Diaz Hanaul Noh Tobias Meier Santiago D. Solares Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, United States 10.3762/bjnano.8.207 Abstract Bioinspired design has been central in the development of hierarchical nanocomposites

• received much attention due to its remarkable mechanical properties and convoluted structure. Nacre is composed of 95% aragonite platelets separated by 5% organic matter, displaying a multiscale hierarchical structure with features ranging from molecular to macroscopic scales [8]. The experimental approach

Advances and challenges in the field of plasma polymer nanoparticles

• Andrei Choukourov,
• Pavel Pleskunov,
• Daniil Nikitin,
• Valerii Titov,
• Artem Shelemin,
• Mykhailo Vaidulych,
• Anna Kuzminova,
• Pavel Solař,
• Jan Hanuš,
• Jaroslav Kousal,
• Ondřej Kylián,
• Danka Slavínská and
• Hynek Biederman

Beilstein J. Nanotechnol. 2017, 8, 2002–2014, doi:10.3762/bjnano.8.200

• deposition method and the histogram in Figure 11e confirms the formation of the triple-scale surface. Thus, plasma polymer NPs produced by GAS prove to be very versatile for the design of hierarchical structures, which can be very efficient for fine tuning of optical properties, surface wettability

Collembola cuticles and the three-phase line tension

• Håkon Gundersen,
• Hans Petter Leinaas and
• Christian Thaulow

Beilstein J. Nanotechnol. 2017, 8, 1714–1722, doi:10.3762/bjnano.8.172

• of and the mechanism behind natural water-repellent surfaces is therefore of great interest beyond the field of biology. Many natural surfaces feature hierarchical structures, which are difficult to reproduce biomimetically. Collembola cuticles feature surface structuring on a single, sub-micrometer

Process-specific mechanisms of vertically oriented graphene growth in plasmas

• Subrata Ghosh,
• Shyamal R. Polaki,
• Niranjan Kumar,
• Sankarakumar Amirthapandian,
• Mohamed Kamruddin and
• Kostya (Ken) Ostrikov

Beilstein J. Nanotechnol. 2017, 8, 1658–1670, doi:10.3762/bjnano.8.166

• water purification and supercapacitive performance. Hence, the aim of research on VGNs is to achieve a pre-determined structure for suitable applications, which depends on the hierarchical organization of nanostructures. Such self-organization can be realized by controlling the process parameters during

Micro- and nano-surface structures based on vapor-deposited polymers

• Hsien-Yeh Chen

Beilstein J. Nanotechnol. 2017, 8, 1366–1374, doi:10.3762/bjnano.8.138

• depositions of different functional polymer films; the hierarchical structure of the outer layer and exposed underneath layers forms the multifunctional interface (Figure 4). Vapor-based multicomponent copolymers can be synthesized through CVD in one step by introducing independent monomers into the

Fabrication of hierarchically porous TiO₂ nanofibers by microemulsion electrospinning and their application as anode material for lithium-ion batteries

• Jin Zhang,
• Yibing Cai,
• Xuebin Hou,
• Xiaofei Song,
• Pengfei Lv,
• Huimin Zhou and
• Qufu Wei

Beilstein J. Nanotechnol. 2017, 8, 1297–1306, doi:10.3762/bjnano.8.131

• electrospinning. However, coaxial electrospinning limits the further development of core–shell nanofibers because of its complicated spinneret, the limited number of suitable fluids and the unstable structure of the fibers. Recently the method of ME-ES has been developed to fabricate hierarchical nanofibers

• et al. reported the fabrication of hierarchical TiO2 nanorods via ME-ES and the application as photoanode material for dye-sensitized solar cells [25]. According to Shi et al., highly porous SnO2/TiO2 composite nanofibers were prepared successfully by ME-ES and subsequent calcination [28]. There are

Characterization of ferrite nanoparticles for preparation of biocomposites

• Urszula Klekotka,
• Magdalena Rogowska,
• Dariusz Satuła and
• Beata Kalska-Szostko

Beilstein J. Nanotechnol. 2017, 8, 1257–1265, doi:10.3762/bjnano.8.127

• functionalization of nanoparticles with organic compounds are becoming the most popular due to the wide potential applications of such hierarchical structures. On demand surface characteristics allow further immobilization of proper biological structures [3], and as a result, biocomposites are obtained. Metallic

• , optical, magnetic and structural characteristics of specific nanoparticles in one hierarchical structure [9]. In such systems, nanoparticles can be functionalized with various biomolecules through different linkage chemistry [10][11][12]. Nanocomposites based on magnetic nanoparticles have a huge

Preparation of thick silica coatings on carbon fibers with fine-structured silica nanotubes induced by a self-assembly process

• Benjamin Baumgärtner,
• Hendrik Möller,
• Thomas Neumann and
• Dirk Volkmer

Beilstein J. Nanotechnol. 2017, 8, 1145–1155, doi:10.3762/bjnano.8.116

• linear poly(ethylenimine), silica shells of several micrometers in thickness can be obtained and their morphology is easily controlled by a considerable number of synthesis parameters. A unique feature is the hierarchical biomimetic structure of the silica coating which surrounds the embedded carbon

• significant influence on the morphology can be achieved by addition of metal ions. Owing to complex formation between the polyamine and the metal ions, the hierarchical structure is modified by a metal salt addition. The ratio between metal ion and ethylenimine monomer unit was set to 1:30. The hybrid silica

• primary building units are arranged to more complex and hierarchical structures depending on a wide range of factors. For the standard conditions, the nanotubes form a silica shell around the carbon fiber with a spatial extent of about 9 µm. The presented coating procedure using LPEI is suitable for the

Hierarchically structured nanoporous carbon tubes for high pressure carbon dioxide adsorption

• Julia Patzsch,
• Deepu J. Babu and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2017, 8, 1135–1144, doi:10.3762/bjnano.8.115

• tubes. Keywords: carbon dioxide adsorption; carbon tubes; gas adsorption; mesoporous carbon; Introduction Nanostructured carbon and silicon carbide materials have numerous potential applications. Structured carbons such as graphene, carbon nanotubes, carbon fibres or hierarchical porous carbons were

• created by nanocasting [29]. All of these approaches have allowed for the synthesis of ordered hierarchical macro–mesoporous materials [24]. Electrospinning is a versatile technique for the synthesis of different one-dimensional forms such as fibers, tubes or wires for various applications such as gas

Bio-inspired micro-to-nanoporous polymers with tunable stiffness

• Julia Syurik,
• Ruth Schwaiger,
• Prerna Sudera,
• Stephan Weyand,
• Siegbert Johnsen,
• Gabriele Wiegand and
• Hendrik Hölscher

Beilstein J. Nanotechnol. 2017, 8, 906–914, doi:10.3762/bjnano.8.92

• storage modulus; Introduction Functional adaptation through porous structures is widely present in nature [1]. Natural structures are often made of hierarchical porous networks, serving mainly for passive mechanical functions [1][2][3], but also for capillary channels and membranes [1]. Nature offers

• citrus fruit, which survives falls from heights above 10 m without any visible external damage [2]. Its tens of millimetres thick protective peel with a hierarchical, graded porous structure was shown to be critical for this amazing mechanical performance [2][4]. Graded porous structures show great

Hybrid nanomaterials: from the laboratory to the market

• Verónica de Zea Bermudez,
• Fabrice Leroux,
• Pierre Rabu and
• Andreas Taubert

Beilstein J. Nanotechnol. 2017, 8, 861–862, doi:10.3762/bjnano.8.87

• -performance materials such as bone or teeth are organic/inorganic hybrid materials of multiscale hierarchical structure and chemical composition perfectly matched to their respective task. As a result, hybrid materials have been explored for essentially all applications possible. Their chemical composition

Recombinant DNA technology and click chemistry: a powerful combination for generating a hybrid elastin-like-statherin hydrogel to control calcium phosphate mineralization

• Mohamed Hamed Misbah,
• Mercedes Santos,
• Luis Quintanilla,
• Christina Günter,
• Matilde Alonso,
• Andreas Taubert and
• José Carlos Rodríguez-Cabello

Beilstein J. Nanotechnol. 2017, 8, 772–783, doi:10.3762/bjnano.8.80

• fibrillar morphology. It is known that ELRs undergo hierarchical self-assembly producing a fibrillar structure [27][30][47]. For example, poly(VPGVG) and its analog poly [fv(VPGVG), fx(VPGKG)] (0.1 ≤ fx ≤0.2, fv + fx = 1) interact hydrophobically and self-assemble into nanofilaments that align in parallel

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

• Arpita Jana,
• Elke Scheer and
• Sebastian Polarz

Beilstein J. Nanotechnol. 2017, 8, 688–714, doi:10.3762/bjnano.8.74

Liquid permeation and chemical stability of anodic alumina membranes

• Dmitrii I. Petukhov,
• Dmitrii A. Buldakov,
• Alexey A. Tishkin,
• Alexey V. Lukashin and
• Andrei A. Eliseev

Beilstein J. Nanotechnol. 2017, 8, 561–570, doi:10.3762/bjnano.8.60

• various porosity parameters (channel diameter 5–400 nm, interpore distance 20–600 nm, porosity 10–50%, thickness from 500 nm to 300 µm) [2][3][4]. It also allows membranes with a hierarchical porous structure to be obtained, where a supporting macroporous layer (aimed to provide mechanical durability

Formation and shape-control of hierarchical cobalt nanostructures using quaternary ammonium salts in aqueous media

• Ruchi Deshmukh,
• Anurag Mehra and
• Rochish Thaokar

Beilstein J. Nanotechnol. 2017, 8, 494–505, doi:10.3762/bjnano.8.53

• , in this study, a wide range of nanostructures ranging from zero-dimensional nanospheres to hierarchical nanoplates and spindles have been successfully synthesized at ambient temperature in aqueous solution. The nanostructures reported here are formed by aggregation of spherical seed particles

• microscopy; hierarchical nanostructures; magnetic moment; tetramethylazanium hydroxide (TMAH); Introduction The synthesis of ferromagnetic nanomaterials with complex functional architectures has seen rapid development during the past decade [1][2][3]. Cobalt nanostructures form an important class of

• is not observed in other ferromagnetic materials such as nickel and iron. Synthesizing anisotropic and hierarchical nanostructures of cobalt is an effective strategy for tuning its electronic, magnetic and crystal properties. The interest in these nanostructures lies in comprehending the physical and

When the going gets rough – studying the effect of surface roughness on the adhesive abilities of tree frogs

• Niall Crawford,
• Thomas Endlein,
• Jonathan T. Pham,
• Mathis Riehle and
• W. Jon P. Barnes

Beilstein J. Nanotechnol. 2016, 7, 2116–2131, doi:10.3762/bjnano.7.201

Nanostructured TiO₂-based gas sensors with enhanced sensitivity to reducing gases

• Wojciech Maziarz,
• Anna Kusior and
• Anita Trenczek-Zajac

Beilstein J. Nanotechnol. 2016, 7, 1718–1726, doi:10.3762/bjnano.7.164

• ], there are several possible explanations for this phenomenon. The first is related to formation of titanium vacancies, VTi, in the flower-like structure during synthesis. Upon Ti foil oxidation by H2O2, a mesoporous hierarchical structure is formed. The three-step process includes, inter alia

• , hierarchical flower-like nanostructures obtained during the chemical oxidation process were applied in the field of gas sensor technology. The obtained sensors were analyzed as a detector of oxidizing and reducing gases. The selectivity of the nanostructures was demonstrated by a sensitivity investigation in

• on the hierarchical TiO2 nanostructure. The response is not only dependent on the type of gas and its concentration but also on the sensor working temperature. The comparison of sensitivity vs working temperature for T30, NS0 and NS1 samples for all investigated gases is shown in Figure 7. For the

Biomechanics of selected arborescent and shrubby monocotyledons

• Tom Masselter,
• Tobias Haushahn,
• Samuel Fink and
• Thomas Speck

Beilstein J. Nanotechnol. 2016, 7, 1602–1619, doi:10.3762/bjnano.7.154

• properties concentrate on two hierarchical levels: On a first level, the radial and axial Young’s moduli of stem tissues in the five “woody” monocotyledon species are analysed (Figure 2A). In addition, in stems of Dracaena marginata, which was chosen as a representative model plant for “woody” monocotyledons

• (see below), the variations of the axial Young’s modulus and the tissue densities at different radial and axial positions are assessed (Figure 2B). On a second hierarchical level, the Young’s moduli and the tensile strengths of individual fibrous vascular bundles of D. marginata are investigated

• . five times higher than the Young’s modulus of the bulk tissue, so that the measured values for the longitudinal Young’s modulus of the tissues (first hierarchical level) can be assumed to be dominated by the values of the longitudinal Young’s modulus of the vascular bundles (second hierarchical level

Dealloying of gold–copper alloy nanowires: From hillocks to ring-shaped nanopores

• Adrien Chauvin,
• Cyril Delacôte,
• Mohammed Boujtita,
• Benoit Angleraud,
• Junjun Ding,
• Chang-Hwan Choi,
• Pierre-Yves Tessier and
• Abdel-Aziz El Mel

Beilstein J. Nanotechnol. 2016, 7, 1361–1367, doi:10.3762/bjnano.7.127

• growth of the material to obtain 1D nanostructures with a hierarchical structuring stays very challenging. In thin film deposition processes, the surface of the substrate is a key point to control the growth of thin films. Indeed, since the surface of the substrate is the starting point for film growth

Functional diversity of resilin in Arthropoda

• Jan Michels,
• Esther Appel and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2016, 7, 1241–1259, doi:10.3762/bjnano.7.115

• systems, provide great advantages [102]. The formation of multiple contacts, which contribute to an increase of the overall length of the total peeling line, is facilitated by a hierarchical organisation of the attachment structures [103]. It was shown that the combination of thin tape-like contact tips

Frog tongue surface microstructures: functional and evolutionary patterns

• Thomas Kleinteich and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2016, 7, 893–903, doi:10.3762/bjnano.7.81

• item. In Megophrys nasuta and Rana (Lithobates) pipiens, where we found hair-like structures on top of the filiform papillae. This second level of hierarchical organization is hypothesized to increase the adaptability of the tongue under load. The micro-ridges on the filiform papillae in Bufo bufo and

Efficient electron-induced removal of oxalate ions and formation of copper nanoparticles from copper(II) oxalate precursor layers

• Kai Rückriem,
• Sarah Grotheer,
• Henning Vieker,
• Paul Penner,
• André Beyer,
• Armin Gölzhäuser and
• Petra Swiderek

Beilstein J. Nanotechnol. 2016, 7, 852–861, doi:10.3762/bjnano.7.77

• smaller structures, namely, when electron exposure leads to formation of nanoparticles (NPs) in the irradiated surface area. Hierarchical surface patterns are thus accessible. In fact, the formation of metal NPs under electron irradiation has been observed in diverse precursor materials such as solid [11

Hierarchical coassembly of DNA–triptycene hybrid molecular building blocks and zinc protoporphyrin IX

• Rina Kumari,
• Sumit Singh,
• Mohan Monisha,
• Sourav Bhowmick,
• Anindya Roy,
• Neeladri Das and
• Prolay Das

Beilstein J. Nanotechnol. 2016, 7, 697–707, doi:10.3762/bjnano.7.62