Optical techniques for cervical neoplasia detection

• Tatiana Novikova

Beilstein J. Nanotechnol. 2017, 8, 1844–1862, doi:10.3762/bjnano.8.186

• data set was evaluated by K-means cluster analysis (KMCA). The regions with similar spectral and hence biochemical properties were clustered on a generated pseudo-color map. In the spectrum averaged over the pixels from stromal layer cluster the Raman peaks at 853, 921, 938 and 1245 cm−1 were assigned

Non-intuitive clustering of 9,10-phenanthrenequinone on Au(111)

• Ryan D. Brown,
• Rebecca C. Quardokus,
• Natalie A. Wasio,
• Jacob P. Petersen,
• Angela M. Silski,
• Steven A. Corcelli and
• S. Alex Kandel

Beilstein J. Nanotechnol. 2017, 8, 1801–1807, doi:10.3762/bjnano.8.181

• , rectangular tetramers of this molecule form in which the net molecular dipoles all orient toward the center of the cluster. This structure does not allow for additional hydrogen bonding and thus the origin of its metastability is not clear. We compare this feature to other structures observed on this surface

• likely arises after adsorption of a cluster formed in solution. This behavior is not observed after the pulse deposition of 9-fluorenone (Figure 1), which indicates that the origin of this feature must be related to the molecular structure of 9,10-phenanthrenequinone. Results and Discussion Pulse

• deposition usually results in a heterogeneous surface, most likely due to the fact that any cluster formation that occurs in the rapidly evaporating droplet will proceed under non-equilibrium conditions and thus can produce kinetic intermediates [13][14][19][27][28][29][30]. For 9,10-phenanthrenequinone we

Transport characteristics of a silicene nanoribbon on Ag(110)

• Ryoichi Hiraoka,
• Chun-Liang Lin,
• Kotaro Nakamura,
• Ryo Nagao,
• Maki Kawai,
• Ryuichi Arafune and
• Noriaki Takagi

Beilstein J. Nanotechnol. 2017, 8, 1699–1704, doi:10.3762/bjnano.8.170

• drastically changed before and after the measurement except for a bright spot which arises from a small cluster dropped from the tip apex. Thus, we have concluded that the peak structure originates from the intrinsic properties of the SiNR. Now let us examine the origin of the peak structure observed for the

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

• by F2 well agrees with the spectrum calculated for fluorine atoms, which form a dense cluster in model VI. However, to reproduce a width of the main peak F in the NEXAFS spectrum, contributions from other fluorine patterns such as, for example, that in model VII would be helpful. It is interesting

Development of an advanced diagnostic concept for intestinal inflammation: molecular visualisation of nitric oxide in macrophages by functional poly(lactic-co-glycolic acid) microspheres

• Kathleen Lange,
• Christian Lautenschläger,
• Maria Wallert,
• Stefan Lorkowski,
• Andreas Stallmach and
• Alexander Schiller

Beilstein J. Nanotechnol. 2017, 8, 1637–1641, doi:10.3762/bjnano.8.163

• Heart and Diabetes Institute, Melbourne, Australia Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle–Jena–Leipzig and Friedrich Schiller University of Jena, Institute of Nutrition, Department of Nutritional Biochemistry, Dornburger Straße 25, 07743 Jena, Germany Friedrich

Comprehensive Raman study of epitaxial silicene-related phases on Ag(111)

• Dmytro Solonenko,
• Ovidiu D. Gordan,
• Guy Le Lay,
• Dietrich R. T. Zahn and
• Patrick Vogt

Beilstein J. Nanotechnol. 2017, 8, 1357–1365, doi:10.3762/bjnano.8.137

• about 0.1 of a ML at room temperature filled-states STM images (Figure 1a) show the formation of cluster-like structures on the otherwise atomically flat Ag(111) surface. The number and sizes of the clusters increase with Si deposition time but do not show any additional corrugation, which would be

Atomic structure of Mg-based metallic glass investigated with neutron diffraction, reverse Monte Carlo modeling and electron microscopy

• Rafał Babilas,
• Dariusz Łukowiec and
• Laszlo Temleitner

Beilstein J. Nanotechnol. 2017, 8, 1174–1182, doi:10.3762/bjnano.8.119

• pair correlation functions and coordination numbers, which illustrated some types of cluster packing. The N = 9 clusters correspond to the tri-capped trigonal prisms, which are one of Bernal’s canonical clusters, and atomic clusters with N = 6 and N = 12 are suitable for octahedral and icosahedral

• illustrated many types of cluster packing. Among others, the N = 9 clusters correspond to the tri-capped trigonal prisms (TTPs), which are one of Bernal’s canonical clusters [30]. Miracle et al. [31] showed that atomic clusters with N = 6 and N = 12 are suitable for octahedral and icosahedral atomic

• the distribution of N = 7 for Mg–Mg pairs, the distribution of the number of adjusted clusters is slightly different. Nevertheless, the obtain results could also lead to the conclusion that cluster packing in Mg65Cu20Y10Ni5 glass has a nine-fold coordination. Figure 5 presents the 3D atomic

Adsorption characteristics of Er₃N@C₈₀on W(110) and Au(111) studied via scanning tunneling microscopy and spectroscopy

• Sebastian Schimmel,
• Zhixiang Sun,
• Danny Baumann,
• Denis Krylov,
• Nataliya Samoylova,
• Alexey Popov,
• Bernd Büchner and
• Christian Hess

Beilstein J. Nanotechnol. 2017, 8, 1127–1134, doi:10.3762/bjnano.8.114

• studies and possible applications [3]. These molecules A3−nBnN@Ck (n = 0–3; A, B = rare earth metal or transition metals of the IVth subgroup; k = 68–96) are composed of a carbon cage which encapsulates a triangular cluster consisting of 3 rare-earth or transition metal atoms and a nitrogen atom at its

• center [4]. Dependent on the cluster composition and due to the intercalation inside a protecting carbon cage, intriguing properties emerge. For instance, single molecular magnetism was observed for DySc2N@C80 [5] and conductance switching by tunneling current induced cluster rotations between chiral

• six electrons from the incarcerated cluster to the cage [4], which causes a weaker adsorbate–substrate interaction [11] in comparison to empty fullerenes. The effects of higher annealing temperatures were not examined. In contrast to the adsorption characteristics of Er3N@C80 on W(110), the molecules

Stable Au–C bonds to the substrate for fullerene-based nanostructures

• Taras Chutora,
• Jesús Redondo,
• Bruno de la Torre,
• Martin Švec,
• Pavel Jelínek and
• Héctor Vázquez

Beilstein J. Nanotechnol. 2017, 8, 1073–1079, doi:10.3762/bjnano.8.109

• , an assumption discussed below. C59 molecules have the highest energetic stability (difference between the cluster energy and the sum of the energy of the individual C atoms) after C60 [23][24][25]. These findings are corroborated by total-energy DFT simulations. Since the diffusion of fullerenes on

Investigation of growth dynamics of carbon nanotubes

• Marianna V. Kharlamova

Beilstein J. Nanotechnol. 2017, 8, 826–856, doi:10.3762/bjnano.8.85

• of carbon nanofibers on nickel nanoparticles and suggested the growth mechanism involving the surface diffusion. They observed the movement of atoms on the surface of the crystalline nickel cluster and change of its shape during the growth process. It was concluded that the surface transport of

• oriented tangentially to the Ni catalyst cluster. Figure 3d demonstrates low-magnification image of several synthesized nanotubes. Chemical state of catalyst. The chemical state of catalyst during the nanotube growth was actively debated. The following three main questions were discussed. (i) Whether

Measuring adhesion on rough surfaces using atomic force microscopy with a liquid probe

• Juan V. Escobar,
• Cristina Garza and
• Rolando Castillo

Beilstein J. Nanotechnol. 2017, 8, 813–825, doi:10.3762/bjnano.8.84

• of force (right axes) for each of the cases we discussed above, and how the force measurements cluster around to these lines. Also, it is important to note that in the case of the multi-scaled rough diamond surface, the value of Fadh/protrusion from the sub-group with the most data points aligned

• measurements during the jump-off-contact process between a micrometric liquid drop attached to an AFM tipless cantilever and rough surfaces. The measurements were made with an atomic force microscope in nitrogen atmosphere. Remarkably, the data naturally cluster around integer multiples of a unit of

Vapor deposition routes to conformal polymer thin films

• Priya Moni,
• Ahmed Al-Obeidi and
• Karen K. Gleason

Beilstein J. Nanotechnol. 2017, 8, 723–735, doi:10.3762/bjnano.8.76

• p-xylylene diradical usually results in no chemical reaction. However, when a p-xylylene diradical collides with a cluster of two adsorbed diradicals, it can react to form a new, heavy chain that does not desorb from the surface [13]. Analysis by Fortin and Lu using the chemisorption model and

Calculating free energies of organic molecules on insulating substrates

• Julian Gaberle,
• David Z. Gao and
• Alexander L. Shluger

Beilstein J. Nanotechnol. 2017, 8, 667–674, doi:10.3762/bjnano.8.71

• is supported by EPSRC, UK and JAIST, Japan. We acknowledge the use of the ARCHER high-performance computing facilities via our membership to the U.K. HPC Materials Chemistry Consortium, which is funded by EPSRC (grant EP/L000202). DZG acknowledges the use of the Serenity computing cluster and support

Computing the T-matrix of a scattering object with multiple plane wave illuminations

• Martin Fruhnert,
• Ivan Fernandez-Corbaton,
• Vassilios Yannopapas and
• Carsten Rockstuhl

Beilstein J. Nanotechnol. 2017, 8, 614–626, doi:10.3762/bjnano.8.66

• object scatters the electromagnetic field, is calculated and subsequently used in a multiple-scattering algorithm, similar to the multi-Mie Method [20][24], to calculate the scattered fields of a large cluster of arbitrary particles. There are several analytical and semi-analytical ways to calculate the

• useful for understanding the nature of a given response. Furthermore, the T-matrix can be used in an extended multiscattering formalism to calculate the response of a whole cluster of objects efficiently. This will speed up calculations by a considerable amount. Single sphere with multiple plane wave

Analysis and modification of defective surface aggregates on PCDTBT:PCBM solar cell blends using combined Kelvin probe, conductive and bimodal atomic force microscopy

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

Beilstein J. Nanotechnol. 2017, 8, 579–589, doi:10.3762/bjnano.8.62

• featured structure seems to be a cluster of aggregated layer portions, as supported by the group exfoliation behavior shown in Figure S5 (Supporting Information File 1). It is worth noting here that the existence of ultra-thin mesoscopic clusters has not yet been reported, despite numerous studies on

• made of acceptor molecules, hole conduction would be deficient (see Figure 5) and localization of electrons would cause negative potential changes [40]. Furthermore, the measured thickness of the cluster layer is similar to the diameter of fullerenes if we consider partially buried PCBM molecules or

Graphene functionalised by laser-ablated V₂O₅ for a highly sensitive NH₃ sensor

• Margus Kodu,
• Artjom Berholts,
• Tauno Kahro,
• Mati Kook,
• Peeter Ritslaid,
• Helina Seemen,
• Tea Avarmaa,
• Harry Alles and
• Raivo Jaaniso

Beilstein J. Nanotechnol. 2017, 8, 571–578, doi:10.3762/bjnano.8.61

• induces a large number of defects in graphene. We propose that during functionalisation of graphene by PLD, the defect creation in the graphene sheet by energetic plasma species is instantly followed by the V2O5 cluster growth at the defect site as the PLD process continues. The V2O5 clusters are probably

Methods for preparing polymer-decorated single exchange-biased magnetic nanoparticles for application in flexible polymer-based films

• Laurence Ourry,
• Delphine Toulemon,
• Souad Ammar and
• Fayna Mammeri

Beilstein J. Nanotechnol. 2017, 8, 408–417, doi:10.3762/bjnano.8.43

• . Dipolar interactions between NPs too close to each other favour a collective magnetic glass state with lower magnetization and coercivity because of inhomogeneous and frustrated macrospin cluster freezing. Consequently, tailoring chemically (through surface functionalization) and magnetically stable NPs

• polymers) [2][3]. If the interparticle distances are decreased too much, a collective magnetic glass state is set up, reducing magnetization and coercivity because of inhomogeneous and frustrated macrospin cluster freezing [4][5][6]. Ideally, flexible magnetic devices require dense but well-separated

Association of aescin with β- and γ-cyclodextrins studied by DFT calculations and spectroscopic methods

• Ana I. Ramos,
• Pedro D. Vaz,
• Susana S. Braga and
• Artur M. S. Silva

Beilstein J. Nanotechnol. 2017, 8, 348–357, doi:10.3762/bjnano.8.37

• SCARF cluster. Thanks are also due to the COST Action MP1202: Rational design of hybrid organic-inorganic interfaces) and to the COST Action MP 1302 Nanospectroscopy, where parts of the findings presented in this manuscript have been previously presented, as shown: – MP1202: HINT Training School “Bottom

Influence of hydrofluoric acid treatment on electroless deposition of Au clusters

• Rachela G. Milazzo,
• Antonio M. Mio,
• Giuseppe D’Arrigo,
• Emanuele Smecca,
• Alessandra Alberti,
• Gabriele Fisichella,
• Filippo Giannazzo,
• Corrado Spinella and
• Emanuele Rimini

Beilstein J. Nanotechnol. 2017, 8, 183–189, doi:10.3762/bjnano.8.19

• pretreatments and the deposition step on a Si sample already thinned and then ready for TEM analysis. The Au cluster morphology was quite similar (see Supporting Information File 1, Figure S1) to that obtained by deposition on bulk substrates. As a result, we used standard wafers for deposition, and the samples

• , and the obtained root mean square (RMS) was 3 nm, which is about one order of magnitude higher than a typical Si wafer (Figure 2c). Consequently, the surface-free energy increases [33] for a rougher surface and promotes 3D cluster formation by offering preferential sites for nucleation as apex or

• ) peak at 38.2° was expected to be the most dominant (the bars represented the computed intensities for a powder sample), the dominant peak at 2θ = 44.3° indicates the occurrence of texturing in the Au cluster orientation. The (111) Au peak at 2θ = 38.2°, measured with grazing incidence X-ray diffraction

From iron coordination compounds to metal oxide nanoparticles

• Mihail Iacob,
• Carmen Racles,
• Codrin Tugui,
• George Stiubianu,
• Adrian Bele,
• Liviu Sacarescu,
• Daniel Timpu and
• Maria Cazacu

Beilstein J. Nanotechnol. 2016, 7, 2074–2087, doi:10.3762/bjnano.7.198

• -valence trinuclear acetate cluster to obtain ultra-small iron oxide nanoparticles. These have been prepared by one-step procedure consisting of the thermal decomposition of the reaction mixture that contains mixed-valence iron acetate (FeAc1) as the oxide precursor, dodecylamine (DA) and sunflower oil (SO

• , Figure S5b) were assigned to magnetite (JCPDS 190629). Thus, the possibility to obtain magnetite nanoparticles from a mixed-valence iron acetate cluster has been demonstrated. In this procedure, small monodisperse nanoparticles were separated from polydisperse ones by a simple filtration. Preparation

• hedgehog-like (hairy)) were selected (Table 1). Cubic nanoparticles (NPT2) were obtained by thermal decomposition of the FeF ([Fe3O(C4H3OCOO)6(CH3OH)3]NO3∙2CH3OH) cluster in the presence of hexadecylamine (HA), olive oil (OO) and TCAA at 350 °C. The reaction was performed at higher temperatures (350 °C

A novel electrochemical nanobiosensor for the ultrasensitive and specific detection of femtomolar-level gastric cancer biomarker miRNA-106a

• Maryam Daneshpour,
• Kobra Omidfar and
• Hossein Ghanbarian

Beilstein J. Nanotechnol. 2016, 7, 2023–2036, doi:10.3762/bjnano.7.193

• have been considered as promising biomarker for early cancer detection [8][9]. There are already numerous reports that specify various miRNAs involved in GC tumorigenesis such as miR-106a [3]. miR-106a belongs to the miR-17 family and is an oncogenic member of miR-106a-363 cluster which is located on

• Xq26.2. Unlike most members of this cluster, the altered expression of miR-106a can be followed in solid tumors, stool, and plasma/serum samples of patients with gastrointestinal tumors such as GC and colorectal cancer [10][11]. According to the recent studies, miR-106a level is significantly associated

Effect of Anderson localization on light emission from gold nanoparticle aggregates

• Mohamed H. Abdellatif,
• Marco Salerno,
• Gaser N. Abdelrasoul,
• Ioannis Liakos,
• Alice Scarpellini,
• Sergio Marras and
• Alberto Diaspro

Beilstein J. Nanotechnol. 2016, 7, 2013–2022, doi:10.3762/bjnano.7.192

• high energy side of Figure 5d, a separated cluster of data points appears for glass. This is probably due to the somewhat irregular behavior of aggregation on this substrate, where sometimes the nanoparticles did not totally wet the surface and formed a tree-like network. Hence, aggregated islands

Zigzag phosphorene nanoribbons: one-dimensional resonant channels in two-dimensional atomic crystals

• Carlos. J. Páez,
• Dario. A. Bahamon,
• Ana L. C. Pereira and
• Peter. A. Schulz

Beilstein J. Nanotechnol. 2016, 7, 1983–1990, doi:10.3762/bjnano.7.189

• by the arrow 2 in panel (b). Acknowledgements CJP and ALCP acknowledge FAPESP, grant 2012/19060-0. DAB acknowledges support from FAPESP grant 2012/50259-8. PAS acknowledges support from CNPq. Numerical simulations were performed at cluster LaSCADo-UNICAMP, supported by FAPESP under project 2010

Ferromagnetic behaviour of ZnO: the role of grain boundaries

• Boris B. Straumal,
• Svetlana G. Protasova,
• Andrei A. Mazilkin,
• Eberhard Goering,
• Gisela Schütz,
• Petr B. Straumal and
• Brigitte Baretzky

Beilstein J. Nanotechnol. 2016, 7, 1936–1947, doi:10.3762/bjnano.7.185

• functional theory calculations. For the cluster with about 200 atoms in an effective electrostatic field formed by the rest of the simulated system the electronic structure was determined. The calculation show that for single-crystalline ZnO the energy difference between highest occupied molecular orbital

Cubic chemically ordered FeRh and FeCo nanomagnets prepared by mass-selected low-energy cluster-beam deposition: a comparative study

• Veronique Dupuis,
• Anthony Robert,
• Arnaud Hillion,
• Ghassan Khadra,
• Nils Blanc,
• Damien Le Roy,
• Florent Tournus,
• Clement Albin,
• Olivier Boisron and
• Alexandre Tamion

Beilstein J. Nanotechnol. 2016, 7, 1850–1860, doi:10.3762/bjnano.7.177

• moment for the FeCo soft alloy. In this paper, we present the magnetic and structural properties of nanoparticles of less than 5 nm diameter embedded in an inert carbon matrix prepared by mass-selected low-energy cluster-beam deposition technique. We obtained a CsCl-type (B2) chemically ordered phase for

• correlation between morphology and magnetism has also been predicted from theoretical density functional theory calculations in agreement with experiments on FeRh nanoparticles prepared by co-sputtering [8]. In addition, for FeCo nanoparticles generated in the gas phase by means of an arc cluster ion source

• low-energy cluster-beam deposition (MS-LECBD) embedded in a carbon matrix. Notice that most of this work is based on the results of the PhD theses of A. Hillion [10] and G. Khadra [11] at Lyon, France. The structural and magnetic properties of as-prepared and annealed nanoalloys were investigated