Comparative study of post-growth annealing of Cu(hfac)₂, Co₂(CO)₈ and Me₂Au(acac) metal precursors deposited by FEBID

• Marcos V. Puydinger dos Santos,
• Aleksandra Szkudlarek,
• Artur Rydosz,
• Carlos Guerra-Nuñez,
• Fanny Béron,
• Kleber R. Pirota,
• Stanislav Moshkalev,
• José Alexandre Diniz and
• Ivo Utke

Beilstein J. Nanotechnol. 2018, 9, 91–101, doi:10.3762/bjnano.9.11

• , the post-growth annealing results differed. Cu-containing deposits showed the formation of pure Cu nanocrystals at the outer surface of the initial deposit for temperatures above 100 °C, due to the migration of Cu atoms from the carbonaceous matrix containing carbon, oxygen, and fluorine atoms. The

Growth model and structure evolution of Ag layers deposited on Ge films

• Arkadiusz Ciesielski,
• Lukasz Skowronski,
• Ewa Górecka,
• Jakub Kierdaszuk and
• Tomasz Szoplik

Beilstein J. Nanotechnol. 2018, 9, 66–76, doi:10.3762/bjnano.9.9

• ) and X-ray diffraction (XRD) measurements proved that segregation of germanium into the surface of the silver film is a result of the gradient growth of silver crystals. The free energy of Ge atoms is reduced by their migration from boundaries of larger grains at the Ag/SiO2 interface to boundaries of

• the substrate explains why the segregation of germanium in the silver structure occurs at an increasing rate. Ge atoms present in the boundaries of smaller nanocrystals have more neighboring crystals, what lowers the free enthalpy of such atoms. The opposite process, i.e., migration of Ge atoms from

• measurements performed 3 days after deposition, which indicates that with time, the surface roughness of the silver films has increased. This is likely because of the slight movement of the silver grains due to the migration of the Ge atoms to the subsurface grain boundaries. The XRR data for the samples

PTFE-based microreactor system for the continuous synthesis of full-visible-spectrum emitting cesium lead halide perovskite nanocrystals

• Chengxi Zhang,
• Weiling Luan,
• Yuhang Yin and
• Fuqian Yang

Beilstein J. Nanotechnol. 2017, 8, 2521–2529, doi:10.3762/bjnano.8.252

• of CsPbI3 QDs in the temperature range of 90–170 °C via the PTEF-based microreactor system since the growth of QDs involves the migration/diffusion of atoms/ions. In comparison with the CsPbBr3 QDs, the PL spectra of the CsPbI3 QDs is much wider, suggesting that the CsPbI3 QDs have a smaller band gap

Au nanostructure fabrication by pulsed laser deposition in open air: Influence of the deposition geometry

• Rumen G. Nikov,
• Anna Og. Dikovska,
• Nikolay N. Nedyalkov,
• Georgi V. Avdeev and
• Petar A. Atanasov

Beilstein J. Nanotechnol. 2017, 8, 2438–2445, doi:10.3762/bjnano.8.242

• using the same processing conditions but performed in vacuum led to the deposition of a flat film. Furthermore, the room substrate temperature does not support an efficient atom migration. All these factors suggest that the nanoparticles, as well as the nanoparticle aggregates, are predominantly formed

Changes of the absorption cross section of Si nanocrystals with temperature and distance

• Michael Greben,
• Petro Khoroshyy,
• Sebastian Gutsch,
• Daniel Hiller,
• Margit Zacharias and
• Jan Valenta

Beilstein J. Nanotechnol. 2017, 8, 2315–2323, doi:10.3762/bjnano.8.231

• (Figure 4a). On the other hand, in presence of exciton migration some neighboring NCs can work as antenna, because a NC can be excited either directly through photon absorption or indirectly through an energy transfer from a nearby NC. Therefore, an ACS enhancement is expected for the system of

Hydrothermal synthesis of ZnO quantum dot/KNb₃O₈ nanosheet photocatalysts for reducing carbon dioxide to methanol

• Xiao Shao,
• Weiyue Xin and
• Xiaohong Yin

Beilstein J. Nanotechnol. 2017, 8, 2264–2270, doi:10.3762/bjnano.8.226

• nanosheets were recycled three times. This shows that the activity of the materials slowly declines but the formation rate of methanol was maintained at around 1500 μmol/g/h. Photoluminescence (PL) spectroscopy was used to trace the migration and capture of photogenerated electrons and holes from the as

Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes

• Lyubov G. Bulusheva,
• Yuliya V. Fedoseeva,
• Emmanuel Flahaut,
• Jérémy Rio,
• Christopher P. Ewels,
• Victor O. Koroteev,
• Gregory Van Lier,
• Denis V. Vyalikh and
• Alexander V. Okotrub

Beilstein J. Nanotechnol. 2017, 8, 1688–1698, doi:10.3762/bjnano.8.169

• spin-averaged LDA for large C128 graphene cells (8 × 8 supercells). Migration barriers were determined using the nudged elastic band method. Raman spectra of pristine DWCNTs (1) and DWCNTs fluorinated with CF4 plasma (2), BrF3 (3), and F2 (4). TEM images of pristine purified DWCNTs (a) and DWCNTs

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

• observed (e.g., through electron microscopy) reduction in thickness of the NG layer is related to the change in adsorption–desorption balance and the longer surface residence time for the species at lower temperatures [58]. Higher growth temperatures promote the migration of the plasma-generated species

Uptake and intracellular accumulation of diamond nanoparticles – a metabolic and cytotoxic study

• Antonín Brož,
• Lucie Bačáková,
• Pavla Štenclová,
• Alexander Kromka and
• Štěpán Potocký

Beilstein J. Nanotechnol. 2017, 8, 1649–1657, doi:10.3762/bjnano.8.165

• viability and the cell number to decrease by 80–85%. The oxidation of the NDs hindered the decrease, but on day 7, a further decrease was observed. While the O-terminated NDs showed mechanical obstruction of cells by agglomerates preventing cell adhesion, migration and division, the H-terminated detonation

• restrain their spreading and migration [38]. Unlike NR-5, the air-annealed DND aggregates (NA-5, see Supporting Information File 2) are not taken up by the cells as rapidly as their non-annealed counterparts. The video starts with a similar number of living cells as described above. The cells undergo 14

• adhesion, migration and division. In comparison with the results of our previous studies, the air annealing of as-received DNDs reduced bands mainly corresponding to CH2 and CH3 stretching vibrations, and gave rise to C═O, CO and C–O–C stretch bands [41][42]. The zeta potential was also reversed from

Two-dimensional carbon-based nanocomposites for photocatalytic energy generation and environmental remediation applications

• Suneel Kumar,
• Ashish Kumar,
• Ashish Bahuguna,
• Vipul Sharma and
• Venkata Krishnan

Beilstein J. Nanotechnol. 2017, 8, 1571–1600, doi:10.3762/bjnano.8.159

• separation and migration of charge carriers to the surface. Higher crystallinity and smaller size of particles play a significant role in enhancing the photocatalytic activity by decreasing the recombination probability of photogenerated charge carriers [4]. It is well known that higher crystallinity leads

A nanocomplex of C₆₀ fullerene with cisplatin: design, characterization and toxicity

• Svitlana Prylutska,
• Svitlana Politenkova,
• Kateryna Afanasieva,
• Volodymyr Korolovych,
• Kateryna Bogutska,
• Andriy Sivolob,
• Larysa Skivka,
• Maxim Evstigneev,
• Viktor Kostjukov,
• Yuriy Prylutskyy and
• Uwe Ritter

Beilstein J. Nanotechnol. 2017, 8, 1494–1501, doi:10.3762/bjnano.8.149

• nucleoids, which hamper DNA migration in the comet tail under electrophoretic conditions, i.e., the lower the fraction of DNA in the tail, the stronger the mutagenic action of Cis. Thus, lymphoblasts appear to be more sensitive to Cis action than lymphocytes. During cultivation with IL-2α (when lymphocytes

Spin-chemistry concepts for spintronics scientists

• Konstantin L. Ivanov,
• Alexander Wagenpfahl,
• Carsten Deibel and
• Jörg Matysik

Beilstein J. Nanotechnol. 2017, 8, 1427–1445, doi:10.3762/bjnano.8.143

Bright fluorescent silica-nanoparticle probes for high-resolution STED and confocal microscopy

• Isabella Tavernaro,
• Christian Cavelius,
• Henrike Peuschel and
• Annette Kraegeloh

Beilstein J. Nanotechnol. 2017, 8, 1283–1296, doi:10.3762/bjnano.8.130

• suitable for biological nanoparticle uptake experiments and have been used to determine the intracellular migration and nuclear penetration after uptake into Caco-2 cells [44]. They have also been used to analyse their intracellular agglomeration and their association with intracellular vesicles in living

Nano-engineered skin mesenchymal stem cells: potential vehicles for tumour-targeted quantum-dot delivery

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

Beilstein J. Nanotechnol. 2017, 8, 1218–1230, doi:10.3762/bjnano.8.123

• endosomes and lysosomes. Discussion Human MSCs have been widely investigated for their potential use in various therapeutic applications, due to their plasticity and migration ability. It has been proposed that MSC migration towards injury and inflammation sites could be used to deliver diagnostic and

• ]. Lourenco et al. showed that MSC migration towards cancer cells is induced by MIF–CXCR4 chemotaxis [29]. Moreover, in close proximity of the tumour, cancer-associated fibroblast formation is induced by the release of vesicles containing miRNA from cancer cells. This leads to melanoma growth and invasion [30

The integration of graphene into microelectronic devices

• Guenther Ruhl,
• Sebastian Wittmann,
• Matthias Koenig and
• Daniel Neumaier

Beilstein J. Nanotechnol. 2017, 8, 1056–1064, doi:10.3762/bjnano.8.107

• stress migration during CVD growth. As already mentioned above the long underetch time causes problems. 1.3 Direct deposition The ideal procedure includes the direct deposition of graphene on the dielectric device substrate without a catalytic metal layer in between. Two concepts can be characterized by

First examples of organosilica-based ionogels: synthesis and electrochemical behavior

• Andreas Taubert,
• Ruben Löbbicke,
• Barbara Kirchner and
• Fabrice Leroux

Beilstein J. Nanotechnol. 2017, 8, 736–751, doi:10.3762/bjnano.8.77

• energy of dielectric relaxation is probably due to the inner structure with the migration in the vicinity of silicate walls compared to the porous structure, as already observed in other composites [55]. The relative ion conductivity considering the physical versus chemical contributions was recently

Silicon microgrooves for contact guidance of human aortic endothelial cells

• Sara Fernández-Castillejo,
• Pilar Formentín,
• Úrsula Catalán,
• Josep Pallarès,
• Lluís F. Marsal and
• Rosa Solà

Beilstein J. Nanotechnol. 2017, 8, 675–681, doi:10.3762/bjnano.8.72

• chemistry influence cellular behaviour such as adhesion, migration and proliferation [1][2][3][4][5][6]. It is important to understand and control cell behaviour by topography in order to modulate the functions of the cells. Cells react to topographic stimuli through a process known as mechanotransduction

• . Reactions of cells to topography are different in the nanometre and micrometre range. Different patterns cause differences in migration or adhesion. Moreover, morphology and orientation of the cells are also influenced by the contact guidance, also known as topographic guidance [7]. This concept refers to

Carbon nanotube-wrapped Fe₂O₃ anode with improved performance for lithium-ion batteries

• Guoliang Gao,
• Yan Jin,
• Qun Zeng,
• Deyu Wang and
• Cai Shen

Beilstein J. Nanotechnol. 2017, 8, 649–656, doi:10.3762/bjnano.8.69

• advantageous for ionic migration. Figure 1c,1d shows the energy dispersive X-ray analysis (EDX) of the Fe2O3/MWCNT composite. Three distinct elements (C, O and Fe) can be observed. All the elements were uniformly distributed. The aforementioned results demonstrated that Fe2O3 nanoparticles were evenly

Gas sensing properties of MWCNT layers electrochemically decorated with Au and Pd nanoparticles

• Elena Dilonardo,
• Michele Penza,
• Marco Alvisi,
• Riccardo Rossi,
• Gennaro Cassano,
• Cinzia Di Franco,
• Francesco Palmisano,
• Luisa Torsi and
• Nicola Cioffi

Beilstein J. Nanotechnol. 2017, 8, 592–603, doi:10.3762/bjnano.8.64

• . The electrophoretic deposition was a cathodic process in which the applied working potential was a little bit more negative than the open circuit potential (η = −200 mV), in order to induce the migration of the positively charged colloidal NPs towards the MWCNT-based device, used as cathode. This mild

Uptake of the proteins HTRA1 and HTRA2 by cells mediated by calcium phosphate nanoparticles

• Olga Rotan,
• Katharina N. Severin,
• Simon Pöpsel,
• Alexander Peetsch,
• Melisa Merdanovic,
• Michael Ehrmann and
• Matthias Epple

Beilstein J. Nanotechnol. 2017, 8, 381–393, doi:10.3762/bjnano.8.40

• this protein family in humans are HTRA1 and HTRA2 that are both involved in tumour suppression and in the control of proliferation, migration, and neurodegeneration [31]. The HTRA1 gene (previously termed PRSS11) was initially identified in human fibroblasts [32]. Numerous experimental findings suggest

• a tumour suppressor function for HTRA1. In various cancer types, an epigenetic silencing of HTRA1 has been observed. Moreover, a decreased HTRA1 expression is correlated both with a reduced response to chemotherapeutics and an augmented cell migration. Additionally, a reduced proliferation of tumour

Ordering of Zn-centered porphyrin and phthalocyanine on TiO₂(011): STM studies

• Piotr Olszowski,
• Lukasz Zajac,
• Szymon Godlewski,
• Bartosz Such,
• Rémy Pawlak,
• Antoine Hinaut,
• Res Jöhr,
• Thilo Glatzel,
• Ernst Meyer and
• Marek Szymonski

Beilstein J. Nanotechnol. 2017, 8, 99–107, doi:10.3762/bjnano.8.11

• groups [13]. Those common surface defects are known to have an important effect on the molecule migration and surface diffusion barriers for Pd atoms [14][15], and as demonstrated by Kolmer et al., on the TiO2(011)-(2×1) surface, they play a very significant role in on-surface synthesis of polymers [16

Sensitive detection of hydrocarbon gases using electrochemically Pd-modified ZnO chemiresistors

• Elena Dilonardo,
• Michele Penza,
• Marco Alvisi,
• Gennaro Cassano,
• Cinzia Di Franco,
• Francesco Palmisano,
• Luisa Torsi and
• Nicola Cioffi

Beilstein J. Nanotechnol. 2017, 8, 82–90, doi:10.3762/bjnano.8.9

• molecules quickly dissociates producing oxygen atoms that migrate along the surface of ZnO grains. This migration, catalyzed by Pd atoms is well known as spillover of the gas ions. In this way, the oxygen atoms capture electrons from the surface of ZnO and, at the same time, acceptor surface states are

Effect of nanostructured carbon coatings on the electrochemical performance of Li_1.4Ni_0.5Mn_0.5O_2+x-based cathode materials

• Konstantin A. Kurilenko,
• Oleg A. Shlyakhtin,
• Oleg A. Brylev,
• Dmitry I. Petukhov and
• Alexey V. Garshev

Beilstein J. Nanotechnol. 2016, 7, 1960–1970, doi:10.3762/bjnano.7.187

• (Figure 5E) [34][35]. The small intercept is almost the same for the electrodes and corresponds to the solution resistance of the cell (Re). Rf and CPEf stand for the Li+ migration resistance and the capacity of the surface layer, respectively. Rct and CPEct stand for the related charge-transfer

A new approach to grain boundary engineering for nanocrystalline materials

• Shigeaki Kobayashi,
• Sadahiro Tsurekawa and
• Tadao Watanabe

Beilstein J. Nanotechnol. 2016, 7, 1829–1849, doi:10.3762/bjnano.7.176

• high-cycle fatigue may result from a rapid migration of low-angle boundaries involving some dislocation mechanisms and enhanced by segregated P atoms at finally resultant random boundaries along shear bands. The operating mechanism will be explained later in some detail. Figure 7 shows the

Surface-enhanced infrared absorption studies towards a new optical biosensor

• Lothar Leidner,
• Julia Stäb,
• Jennifer T. Adam and
• Günter Gauglitz

Beilstein J. Nanotechnol. 2016, 7, 1736–1742, doi:10.3762/bjnano.7.166

• spectrum could also benefit from migration to the mid-infrared spectrum. In a feature article Sieger and Mizaikoff [22], the potential for chemical and biological label-free sensing applications is emphasized. A toolbox containing tunable quantum cascade lasers (QCLs) and interband cascade lasers (ICLs) as