Biocatalytic synthesis and ordered self-assembly of silica nanoparticles via a silica-binding peptide

• Mustafa Gungormus

Beilstein J. Nanotechnol. 2023, 14, 280–290, doi:10.3762/bjnano.14.25

• behavior of biosilicification-related proteins (BSRPs), such as silicateins and silaffins. BSRPs facilitate the formation of inorganic silica structures in marine organisms [27][28]. It has been reported that isolated silicateins and silaffins or certain repeating motifs of these proteins can facilitate

Chemoselective silicification of synthetic peptides and polyamines

• Maryna Abacilar,
• Fabian Daus and
• Armin Geyer

Beilstein J. Nanotechnol. 2015, 6, 103–110, doi:10.3762/bjnano.6.10

• Maryna Abacilar Fabian Daus Armin Geyer Faculty of Chemistry, Philipps-Universität Marburg, 35032 Marburg, Germany 10.3762/bjnano.6.10 Abstract Biosilicification sets the standard for the localized in vitro precipitation of silica at low orthosilicate concentrations in aqueous environment under

• present experiments which quantify the additivity, and potential cooperativity of long chain polyamines (LCPAs) and cationic peptides in the silicification process. Keywords: biomineralisation; biosilicification; NMR spectroscopy; polyamines; silaffin; Introduction Modifications of the Stöber method [1

• . Biosilicification however, relies on the sharp differentiation between soluble and entrapped molecules, a sophisticated form of chemoselective silicification. Currently accepted models are the LCPA–phosphate model [4] and the silaffin-matrix hypothesis [5]. Both formulate varying concentrations of soluble

Controlled synthesis and tunable properties of ultrathin silica nanotubes through spontaneous polycondensation on polyamine fibrils

• Jian-Jun Yuan,
• Pei-Xin Zhu,
• Daisuke Noda and
• Ren-Hua Jin

Beilstein J. Nanotechnol. 2013, 4, 793–804, doi:10.3762/bjnano.4.90

• are expensive, which limits a wider adoption and large-scale application of silica nanotubes [5][7][8][9][10][11][12][13][14][15]. In contrast, biosilicification in various biological systems such as diatoms and sponges proceeds in water under ambient conditions and produces siliceous skeletons with

• biosilicification [18][19]. Therefore, a number of strategies to design self-assembled organic aggregates has been developed in order to make these organic matrices work as templates/scaffolds/catalysts for a deposition of silica at ambient conditions [20]. Recently, self-assembled fibrils of polypeptides [21][22

• diameters of 15–23 nm. Pouget et al. [22] synthesized double-walled nanotubes that possess a silica/Lanreotide/silica wall architecture through a unique synergistic growth mechanism. With these methods, which are inspired by biosilicification, silica can be selectively deposited on the template under mild