Self-Assembly of Metal Nanoparticles and Nanotubes on Bioengineered Flagella Scaffolds

Kumara, Mudalige Thilak; Tripp, Brian C.; Muralidharan, Subra

doi:10.1021/cm062178b

Cited by 75 publications

(87 citation statements)

References 83 publications

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“…At the same time, a lack of individual Cys and His amino acids eliminates the obvious well known metal-binding mechanisms by which peptides can attach non-specifically to metal surfaces. 7,8,11,25,44,45 In QBP1, on the other hand, hydrophobic amino acids (P) have been reported to be an important constituent for silicabinding peptide sequences 30 and are probably associated with silica binding. By contrast, the present aromatic amino acids (W, Y) may contribute to the observed minor gold-binding characteristics of QBP1.…”

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confidence: 99%

Peptide-directed co-assembly of nanoprobes on multimaterial patterned solid surfaces

Hnilova

Ören

et al. 2012

Soft Matter

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Biocombinatorially selected solid-binding peptides, through their unique material affinity and selectivity, are a promising platform for building up complex hierarchical assemblies of nanoscale materials and molecular probes, targeted to specific practical solid surfaces. Here, we demonstrate the material-specific characteristics of engineered gold-binding and silica-binding peptides through coassembly onto micro-and nano-patterned gold surfaces on silica substrates. To build hierarchical nanostructures on patterned solid surfaces, we utilize peptides as molecular tools and monitor their behavior by either conjugating biotin to them for specific affinity to streptavidin-coated QDot nanoparticles or labelling them with small fluorescent labels. This biomimetic peptide-based approach could be used as an alternative to conventional chemical coupling and surface functionalization techniques with substantial advantages, allowing simultaneous assembly of two or more inorganic nano-entities and/or molecular probes onto patterned inorganic solid substrates. The results have significant implications in a wide range of potential applications, including controlled assembly of hybrid nanostructures in bionanophotonic and biosensing devices.

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confidence: 99%

Peptide-directed co-assembly of nanoprobes on multimaterial patterned solid surfaces

Hnilova

Ören

et al. 2012

Soft Matter

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“…Method of molecular engineering of biological molecules can be applied to fabricate templates having a great affinity to a certain metal ions, for example, to Au(III) [84,85]. Introduction of a histidine fragment into flagellate protein caused a controlled deposition of Au(0) nanoparticles of 5 nm in diameter due to formation of Au(I) complex with structured amino and imidazole groups.…”

Section: Vegetable Biomasses and Extracts As Reduction Agents Of Metamentioning

confidence: 99%

Bionanocomposites Assembled by “From Bottom to Top” Method

Pomogailo

Джардималиева

2014

Nanostructured Materials Preparation via Condensation Ways

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Particles, which take part in different biological processes, have a special place in nanometer composites. Rich and variable biochemistry of proteins displays key importance of a nanometer phenomenon for a working mechanism of living organisms [1,2], and this provides a wide range of possibilities for development of new types of hybrid nanomaterials with constructible structures, functions and shapes [3][4][5].Integration of nanoparticles and biomolecules, each having unique properties, on the one hand, and being in the same nanometer scale (enzymes, antigens, and antibodies of typical sizes 2-20 nm like nanoparticles), on the other hand, as of two structurally compatible classes of materials, gives resultant new hybrid nanomaterials with synergetic properties and functions (Fig. 7.1).Interaction of nanoparticles with biopolymers (proteins, nucleic acids, polysaccharides) plays very important role in enzyme catalysis, biosorption, biohydrometallurgy, geobiotechnology, etc.). There is a great interest to nanomaterials, which can be used in biomedical and pharmaceutical applications due to their biocompatibility and biodegradation. At the same time bionanocomposites should meet some demands to plasticity of a matrix, they should have improved barrier, antimicrobial properties, ability to controlled release of bioactive substances such as antimicrobial agents, antioxidants, drugs, calcium compounds in biologically available form and their mixtures, etc. Biopolymers, such as natural and synthetic proteins, obtained by chemical methods or by genetic modification of microorganisms or plants, nucleic acids (including synthetic ones), biodegraded complex polyethers, such as polylactic acid, and its derivatives, oligo-hydroxyalkanoate, most often, polyhydroxybutyrate, their copolymers, biomedical materials, such as hydroxyapatites, are used. There is an interesting group of materials for this purpose including synthetic and natural (vegetable and animal) polysaccharides, such as cellulose and its derivatives, alginates, dextranes, acacia gum, chitosan, and any of its natural and synthetic derivatives, especially chitosan acetate, and proteins obtained from raw animal materials, as well as proteins from maize (especially zein) or soya, gluten derivatives, gelatin, casein, etc. Relatively widely used in

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“…Peptide loops of bacterial flagellin protein were bioengineered to form bionanotubes with evenly spaced binding sites for metal ions. 29 Six different types of metal ions were complexed to the modified peptide loops. The careful reduction with NaBH 4 or hydroquinone was shown to form metal-flagellin nanoparticle arrays and nanowires.…”

Section: Cellular Componentsmentioning

confidence: 99%

Biologically Templated Nanostructure Assemblies

Behrens¹

2011

Encyclopedia of Inorganic and Bioinorganic Chemistry

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Living organisms are able to manufacture a variety of sophisticated inorganic materials with precise control over chemical composition, crystal structure, and shape. Biomolecules offer unique functionalities such as specific recognition capabilities or catalytic activity. On the basis of these recognition capabilities, biological subunits are able to self‐assemble into defined superstructures with unique shapes. Furthermore, they may respond to multiple physical, chemical, or biological stimuli, and therefore provide a potential means for manufacturing nanomachines. However, naturally occurring inorganic materials are typically based on protein scaffolds with inorganic minerals, e.g., iron oxide or calcium carbonate, which limits their technical application. Hence, the knowledge of biological concepts, functions, and design features has recently been exploited for manufacturing new, technologically important, and functional inorganic nanomaterials that have no isomorphous complement in nature. One major challenge in manufacturing nanostructures by biotemplating has been the need to either modify traditional methodologies derived from chemistry or microelectronics, or to develop new synthetic pathways, in order to make the material synthesis compatible with the relatively labile biotemplates. Various chemical procedures illustrated by selected examples have been elaborated to direct the nucleation and deposition of inorganic materials (e.g., metals, alloys, or semiconductors) on bioassemblies or to link preformed inorganic building blocks to functional biomolecules. Bioassemblies template complex, multidimensional, and inorganic nanoarchitectures that are typically not available by conventional material synthesis. Recently, the templating ability of natural bioassemblies has been improved by means of genetic engineering. Moreover, it has been demonstrated that the biological functionality of the system may be retained under appropriate conditions, which allows the manufacturing of inorganic nanostructures with motility functions. The use of diverse nanostructured bioassemblies based on both proteins (e.g., cell components such as microtubules, microfilaments, S‐layers) or microorganisms (i.e., viruses, diatoms) and deoxyribonucleic acid (DNA) is discussed for their potential of templating of inorganic nanoarchitectures.

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Self-Assembly of Metal Nanoparticles and Nanotubes on Bioengineered Flagella Scaffolds

Cited by 75 publications

References 83 publications

Peptide-directed co-assembly of nanoprobes on multimaterial patterned solid surfaces

Peptide-directed co-assembly of nanoprobes on multimaterial patterned solid surfaces

Bionanocomposites Assembled by “From Bottom to Top” Method

Biologically Templated Nanostructure Assemblies

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