Ordering and Printing Virus Arrays: A Straightforward Way to Functionalize Surfaces

Horn, Andrew B.; Hiltl, Stephanie; Fery, Andreas; Böker, Alexander

doi:10.1002/smll.201000863

Cited by 39 publications

(40 citation statements)

References 25 publications

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“…42 Thus, not only are fishnet architectures attainable, 38 but different particle types can also be combined with each other in a well-defined fashion. 58,59 Concerning the particle types, this concept is indeed generic because the protein coating governs the colloidal interactions and wetting as well as the interparticle spacing, rather than the nature of the core. We would like to point out that we have limited our fabrication to centimeter-squared areas, but the procedure is readily scalable.…”

Section: Resultsmentioning

confidence: 99%

Strongly Coupled Plasmonic Modes on Macroscopic Areas via Template-Assisted Colloidal Self-Assembly

et al. 2014

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We present ensembles of surface-ordered nanoparticle arrangements, which are formed by template-assisted self-assembly of monodisperse, protein-coated gold nanoparticles in wrinkle templates. Centimeter-squared areas of highly regular, linear assemblies with tunable line width are fabricated and their extinction cross sections can be characterized by conventional UV/vis/NIR spectroscopy. Modeling based on electrodynamic simulations shows a clear signature of strong plasmonic coupling with an interparticle spacing of 1–2 nm. We find evidence for well-defined plasmonic modes of quasi-infinite chains, such as resonance splitting and multiple radiant modes. Beyond elementary simulations on the individual chain level, we introduce an advanced model, which considers the chain length distribution as well as disorder. The step toward macroscopic sample areas not only opens perspectives for a range of applications in sensing, plasmonic light harvesting, surface enhanced spectroscopy, and information technology but also eases the investigation of hybridization and metamaterial effects fundamentally.

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Section: Resultsmentioning

confidence: 99%

Strongly Coupled Plasmonic Modes on Macroscopic Areas via Template-Assisted Colloidal Self-Assembly

et al. 2014

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“…In order to achieve surface confined protein structures with a distinct arrangement, surface patterning via contact printing of protein structures or covalent connecting proteins to a predetermined reactive surface pattern is usually the preferred method [43,44]. However, the features obtained by contact printing are limited in size and coordination, or adsorption of proteins onto block-copolymer thin films offer a two-step approach of first, film formation and second, protein adsorption, to achieve nano-sized protein features on surfaces.…”

Section: Self-assembly In Phase-separating Thin Filmsmentioning

confidence: 99%

Polymer Directed Protein Assemblies

Rijn

2013

Polymers

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Protein aggregation and protein self-assembly is an important occurrence in natural systems, and is in some form or other dictated by biopolymers. Very obvious influences of biopolymers on protein assemblies are, e.g., virus particles. Viruses are a multi-protein assembly of which the morphology is dictated by poly-nucleotides namely RNA or DNA. This "biopolymer" directs the proteins and imposes limitations on the structure like the length or diameter of the particle. Not only do these bionanoparticles use polymer-directed self-assembly, also processes like amyloid formation are in a way a result of directed protein assembly by partial unfolded/misfolded biopolymers namely, polypeptides. The combination of proteins and synthetic polymers, inspired by the natural processes, are therefore regarded as a highly promising area of research. Directed protein assembly is versatile with respect to the possible interactions which brings together the protein and polymer, e.g., electrostatic, v.d. Waals forces or covalent conjugation, and possible combinations are numerous due to the large amounts of different polymers and proteins available. The protein-polymer interacting behavior and overall morphology is envisioned to aid in clarifying protein-protein interactions and are thought to entail some interesting new functions and properties which will ultimately lead to novel bio-hybrid materials.

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“…[ 30–33 ] These patterns can be used to guide particle assembly, thereby avoiding the utilization of expensive masters, which are usually fabricated by the already mentioned methods of photo or non‐photo lithography. In recent years, PDMS wrinkle templates have been widely used to directly assemble organic [ 34–36 ] and inorganic particles [ 37–39 ] as well as biomaterials, [ 40,41 ] which led to functional nano‐ or micro‐structures applicable for, e.g., plasmonics, [ 37–39 ] or wetting switches. [ 42 ] Nevertheless, up to now there are only a limited number of studies about chemical patterns fabricated by using PDMS wrinkles to guide self‐assembly of particles.…”

Section: Introductionmentioning

confidence: 99%

Shaping Metallic Nanolattices: Design by Microcontact Printing from Wrinkled Stamps

Wang

Sperling

Reifarth

et al. 2020

Small

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A method for the fabrication of well‐defined metallic nanostructures is presented here in a simple and straightforward fashion. As an alternative to lithographic techniques, this routine employs microcontact printing utilizing wrinkled stamps, which are prepared from polydimethylsiloxane (PDMS), and includes the formation of hydrophobic stripe patterns on a substrate via the transfer of oligomeric PDMS. Subsequent backfilling of the interspaces between these stripes with a hydroxyl‐functional poly(2‐vinyl pyridine) then provides the basic pattern for the deposition of citrate‐stabilized gold nanoparticles promoted by electrostatic interaction. The resulting metallic nanostripes can be further customized by peeling off particles in a second microcontact printing step, which employs poly(ethylene imine) surface‐decorated wrinkled stamps, to form nanolattices. Due to the independent adjustability of the period dimensions of the wrinkled stamps and stamp orientation with respect to the substrate, particle arrays on the (sub)micro‐scale with various kinds of geometries are accessible in a straightforward fashion. This work provides an alternative, cost‐effective, and scalable surface‐patterning technique to fabricate nanolattice structures applicable to multiple types of functional nanoparticles. Being a top‐down method, this process could be readily implemented into, e.g., the fabrication of optical and sensing devices on a large scale.

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Ordering and Printing Virus Arrays: A Straightforward Way to Functionalize Surfaces

Abstract: Regular stripes of tobacco mosaic viruses (TMV) with variable line spacings (290 nm to 1 μm) are generated over large areas via printing prealigned TMVs from wrinkled poly(dimethylsiloxane) substrates onto flat substrates.

Cited by 39 publications

References 25 publications

Strongly Coupled Plasmonic Modes on Macroscopic Areas via Template-Assisted Colloidal Self-Assembly

Strongly Coupled Plasmonic Modes on Macroscopic Areas via Template-Assisted Colloidal Self-Assembly

Polymer Directed Protein Assemblies

Shaping Metallic Nanolattices: Design by Microcontact Printing from Wrinkled Stamps

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