Wet‐Chemical Synthesis of Nanoscale Iron Boride, XAFS Analysis and Crystallisation to α‐FeB

Rades, Steffi; Kornowski, Andreas; Weller, Horst; Albert, Barbara

doi:10.1002/cphc.201001072

Cited by 38 publications

(33 citation statements)

References 32 publications

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“…The X-ray diffraction pattern of the annealed, crystalline sample allows for its identification as Ni 3 B (see Additional file 1). In previous work, we have shown using methods like X-ray diffraction, energy-dispersive X-ray spectroscopy, X-ray absorption spectroscopy, scanning and transmission electron microscopy, and energy-loss electron spectroscopy that the corresponding amorphous phase actually consists of the same boride as the crystalline modification [5,7]. For the phage display the amorphous Ni 3 B nanoparticles were used after extensive washing with deionized water and drying in a desiccator under vacuum.…”

Section: Methodsmentioning

confidence: 99%

“…Because of the high melting point of boron, the traditional synthesis of metal borides does not result in nanoscale or nanostructured products. As an alternative, a room temperature synthesis of nickel boride nanoparticles via hydrolysis of NaBH 4 has been reported [4-7]. Biological systems, on the other hand, can synthesise materials under mild and environmentally benign conditions [8].…”

Section: Introductionmentioning

confidence: 99%

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Selection of peptides binding to metallic borides by screening M13 phage display libraries

et al. 2014

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BackgroundMetal borides are a class of inorganic solids that is much less known and investigated than for example metal oxides or intermetallics. At the same time it is a highly versatile and interesting class of compounds in terms of physical and chemical properties, like semiconductivity, ferromagnetism, or catalytic activity. This makes these substances attractive for the generation of new materials. Very little is known about the interaction between organic materials and borides. To generate nanostructured and composite materials which consist of metal borides and organic modifiers it is necessary to develop new synthetic strategies. Phage peptide display libraries are commonly used to select peptides that bind specifically to metals, metal oxides, and semiconductors. Further, these binding peptides can serve as templates to control the nucleation and growth of inorganic nanoparticles. Additionally, the combination of two different binding motifs into a single bifunctional phage could be useful for the generation of new composite materials.ResultsIn this study, we have identified a unique set of sequences that bind to amorphous and crystalline nickel boride (Ni3B) nanoparticles, from a random peptide library using the phage display technique. Using this technique, strong binders were identified that are selective for nickel boride. Sequence analysis of the peptides revealed that the sequences exhibit similar, yet subtle different patterns of amino acid usage. Although a predominant binding motif was not observed, certain charged amino acids emerged as essential in specific binding to both substrates. The 7-mer peptide sequence LGFREKE, isolated on amorphous Ni3B emerged as the best binder for both substrates. Fluorescence microscopy and atomic force microscopy confirmed the specific binding affinity of LGFREKE expressing phage to amorphous and crystalline Ni3B nanoparticles.ConclusionsThis study is, to our knowledge, the first to identify peptides that bind specifically to amorphous and to crystalline Ni3B nanoparticles. We think that the identified strong binding sequences described here could potentially serve for the utilisation of M13 phage as a viable alternative to other methods to create tailor-made boride composite materials or new catalytic surfaces by a biologically driven nano-assembly synthesis and structuring.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Selection of peptides binding to metallic borides by screening M13 phage display libraries

et al. 2014

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“…Автори робіт [3][4] роблять припущення, що у сплавах системи Fe-В утворюється моноборид заліза FeВ, який може існувати у двох модифікаціях: високотемпературній β-FeВ та низькотемпературній α-FeВ. Відомо, що фази β-FeВ та α-FeВ відрізняються значенням магнітного моменту [5][6].…”

Section: вступunclassified

Study of Thermodynamic Functions for Iron Monoboride FeB

Filonenko

2015

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“…Thermoelectric [3] and magnetic [4] properties, ultra-hardness [5] and behaviors as diffusion barriers. Iron boride is attractive because of the magnetic properties and catalytic properties [6]. The development of iron boride change coatings on ferrous substrates is alluring for an extensive variety of applications [7,8].…”

Section: Introductionmentioning

confidence: 99%