Electroless metal plating of microtubules: Effect of microtubule-associated proteins

Yang, Yi; Constance, B. H.; Deymier, Pierre A.; Hoying, James B.; Raghavan, S.; Zelinski, Brian J.J.

doi:10.1023/b:jmsc.0000017754.47572.1e

Cited by 29 publications

(27 citation statements)

References 16 publications

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“…Vauthey and co-workers described the molecular self-assembly of surfactant-like peptides to form nanotubes and nanovesicles [48]. The ability of protein coated peptide tubules to recognise and bind the protein complementary molecules in solution was investigated by Douberly and co-workers [49], while Yang and others analysed microtubules as templates for fabricating metallic nanowires [50]. Sugunan and others describe the formation of microwires of gold nanoparticle coated hyphea of Aspergillus strains while growing of initial spores in colloidal gold solution [39].…”

Section: Discussionmentioning

confidence: 99%

Development of functionalised polyelectrolyte capsules using filamentous Escherichia coli cells

et al. 2012

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BackgroundEscherichia coli is one of the best studied microorganisms and finds multiple applications especially as tool in the heterologous production of interesting proteins of other organisms. The heterologous expression of special surface (S-) layer proteins caused the formation of extremely long E. coli cells which leave transparent tubes when they divide into single E. coli cells. Such natural structures are of high value as bio-templates for the development of bio-inorganic composites for many applications. In this study we used genetically modified filamentous Escherichia coli cells as template for the design of polyelectrolyte tubes that can be used as carrier for functional molecules or particles. Diversity of structures of biogenic materials has the potential to be used to construct inorganic or polymeric superior hybrid materials that reflect the form of the bio-template. Such bio-inspired materials are of great interest in diverse scientific fields like Biology, Chemistry and Material Science and can find application for the construction of functional materials or the bio-inspired synthesis of inorganic nanoparticles.ResultsGenetically modified filamentous E. coli cells were fixed in 2% glutaraldehyde and coated with alternating six layers of the polyanion polyelectrolyte poly(sodium-4styrenesulfonate) (PSS) and polycation polyelectrolyte poly(allylamine-hydrochloride) (PAH). Afterwards we dissolved the E. coli cells with 1.2% sodium hypochlorite, thus obtaining hollow polyelectrolyte tubes of 0.7 μm in diameter and 5–50 μm in length. For functionalisation the polyelectrolyte tubes were coated with S-layer protein polymers followed by metallisation with Pd(0) particles. These assemblies were analysed with light microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and transmission electron microscopy.ConclusionThe thus constructed new material offers possibilities for diverse applications like novel catalysts or metal nanowires for electrical devices. The novelty of this work is the use of filamentous E. coli templates and the use of S-layer proteins in a new material construct.

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Section: Discussionmentioning

confidence: 99%

Development of functionalised polyelectrolyte capsules using filamentous Escherichia coli cells

et al. 2012

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“…After 300 ll of bacteriophages (10 10 cfu/ml in 1Â PBS) was given at a flow rate of 15 ll/min, the sensor was washed with autoclaved MilliQ water (18.2 MX cm) at the same flow rate. Five overtone resonance frequencies (25,35,45, 54 and 64 MHz) were applied for frequency change measurements at 23°C. Data analysis was performed with QTools software program and experiments were repeated at least for three times.…”

Section: Au Binding Measurementsmentioning

confidence: 99%

“…Addition of reducing agents to a mixture of biological molecules and metal precursor solutions results in formation of NPs localized on template surfaces. In this process, metal ions should first bind to active sites of amino acids like histidine, methionine or cysteine present on the template surface, then reducing agents should be added to reduce bound metal ions to metallic atoms and lastly the formation of a critical concentration of metal atoms would result in formation of metal clusters [25]. Here we investigated the one-step metallization of phages in 100 mM HEPES buffer without using any additional reducing agent.…”

Section: One-pot Metallization Of Engineered Phagesmentioning

confidence: 99%

Engineering filamentous bacteriophages for enhanced gold binding and metallization properties

Zirpel

Arslan

Lee

2015

Journal of Colloid and Interface Science

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“…MTs have been used to template the formation of various metal nanoparticles and nanowires. 25 Ag nanoparticles of 5.2 nm, for example, could be nucleated on MT surfaces using a NaBH 4 reduction bath (Figure 2c). 26 The MT attached nanoparticles could then be further enlarged applying hydroquinone and Ag + ions, a reaction widely studied in connection with photographic procedures.…”

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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Electroless metal plating of microtubules: Effect of microtubule-associated proteins

Cited by 29 publications

References 16 publications

Development of functionalised polyelectrolyte capsules using filamentous Escherichia coli cells

Development of functionalised polyelectrolyte capsules using filamentous Escherichia coli cells

Engineering filamentous bacteriophages for enhanced gold binding and metallization properties

Biologically Templated Nanostructure Assemblies

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