Hydroxyapatite–bioglass nanocomposites: Structural, mechanical, and biological aspects

• Olga Shikimaka,
• Mihaela Bivol,
• Bogdan A. Sava,
• Marius Dumitru,
• Christu Tardei,
• Beatrice G. Sbarcea,
• Daria Grabco,
• Constantin Pyrtsac,
• Daria Topal,
• Andrian Prisacaru,
• Vitalie Cobzac and
• Viorel Nacu

Beilstein J. Nanotechnol. 2022, 13, 1490–1504, doi:10.3762/bjnano.13.123

• divided into the following large groups: (i) silicate-based bioglasses (SBG), (ii) phosphate-based bioglasses (PBG), and (iii) borate-based bioglasses (BBG). The chemical composition of the glass, the ratio of its constituent oxides, and the glass structure have a determinative influence on its biological

Laser-assisted fabrication of gold nanoparticle-composed structures embedded in borosilicate glass

• Nikolay Nedyalkov,
• Mihaela Koleva,
• Nadya Stankova,
• Rosen Nikov,
• Mitsuhiro Terakawa,
• Yasutaka Nakajima,
• Lyubomir Aleksandrov and
• Reni Iordanova

Beilstein J. Nanotechnol. 2017, 8, 2454–2463, doi:10.3762/bjnano.8.244

• prepared were determined by differential thermal analysis (DTA) (Setaram, Labsys Evo 1600) at a heating rate of 10 °C/min (±1 K) in air. The glass structure after the laser processing and thermal annealing was investigated by transmission electron microscopy (TEM) (JEOL JEM 2100). The EMCAT/EMFIT computer

Au₅₅, a stable glassy cluster: results of ab initio calculations

• Dieter Vollath,
• David Holec and
• Franz Dieter Fischer

Beilstein J. Nanotechnol. 2017, 8, 2221–2229, doi:10.3762/bjnano.8.222

• the value of the surface energy. Keywords: amorphous; Au55 cluster; glass structure; phase transformation; surface energy; Introduction There is a lot of discussion about the structure and surface energy of small nanoparticles. However, this discussion is rather limited due to the fact that there

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

• metallic glass. Partial pair distribution functions of Mg65Cu20Y10Ni5 metallic glass obtained from reverse Monte Carlo calculations. Distribution of the coordination number of Mg–Mg (a), Cu–Mg (b), Y–Mg (c) and Ni–Mg (d) atoms in Mg65Cu20Y10Ni5 metallic glass. Structure of Mg65Cu20Y10Ni5 metallic glass

Adsorption of the ionic liquid [BMP][TFSA] on Au(111) and Ag(111): substrate effects on the structure formation investigated by STM

• Benedikt Uhl,
• Florian Buchner,
• Dorothea Alwast,
• Nadja Wagner and
• R. Jürgen Behm

Beilstein J. Nanotechnol. 2013, 4, 903–918, doi:10.3762/bjnano.4.102

• crystalline structures are depicted in Figures 4–6 (see below). We will first concentrate on the discussion of the ‘2D glass’ structure. In Figure 1b, a Au(111) surface covered with 0.7 monolayers (ML) of [BMP][TFSA] adsorbates is shown (for a definition of 1 ML see Experimental section). In that image, the

• this phase in the submonolayer and monolayer regime. On Ag(111), adsorption of [BMP][TFSA] leads to a similar ‘2D glass’ structure. In this case, however, it is formed only on narrow terraces with a width of ≤10 nm, as can be seen exemplarily in the STM image in Figure 2, while on Au(111) there was no

• sites are not in registry, and therefore can not coalesce easily. These effects are absent on the unreconstructed Ag(111) surface. In the inset of Figure 2, we show a high resolution image of the 2D glass structure. It is recorded in the central area of an island with very little or no motion of the

Nanoglasses: a new kind of noncrystalline materials

• Herbert Gleiter

Beilstein J. Nanotechnol. 2013, 4, 517–533, doi:10.3762/bjnano.4.61

• a spin glass structure. In other words, nanoglasses seem to consist of the following two noncrystalline phases: one phase with a glassy structure and another phase with a new kind of noncrystalline atomic structure as well as a new electronic structure. Properties of nanoglasses Ferromagnetism in

• observation of a reduced s-electron density (Mössbauer spectroscopy, Figure 10), an enhanced Young’s modulus, an atomic force constant in NRVS, an enhanced Curie temperature and enhanced hyperfine field (Figure 12) as well as itinerant ferromagnetism instead of a spin-glass structure (Figure 13