Selective configuration control of plasmonic nanostructures using either topdown or bottomup approaches has remained challenging in the field of active plasmonics. Direct microscopy imaging reveals details in dna origami. To demonstrate the potential of dna origami for the programmable and nanometreprecise design of plasmonic nanostructures, we targeted an optical response that emerges as a. Thus, complex and reconfigurable chiral plasmonic diastereomers with eight plasmonic stereoisomers were achieved, driven by programmed dna reactions. A dna origami cross is assembled from the p7560 sca. Chiral plasmonic nanostructures via dna selfassembly. Dna assembled bimetallic plasmonic nanosensors light. These internal forces show a rich behaviour with varying wavelength, incident polarisation and geometrical parameters, which we explain in terms of the. One of the key challenges in this area lies in the bottomup construction of precise plasmonic nanostructures with novel optical properties.
Building miniature optical antennas using dna as a guide. Direct microscopy imaging reveals details in dna origami nanostructures 2 september 2019, by laura millsaps credit. Mar 28, 2012 the rapid development of dna nanotechnology has enabled the precise bottomup integration of metal nanoparticles nps on a nanometer scale. Dna nanostructures as scaffolds for metal nanoparticles. As well as making plasmonic molecules, dna nanostructures can also be used as linkers, templates and spacers to facilitate the positioning of metallic nanoparticles into highly ordered plasmonic polymers and crystals. Enabled chiral assembly of plasmonic nanostructures. Defect tolerance and the effect of structural inhomogeneity in. Plasmonic nanoparticle assemblies are of particular interest because they can be tailored to exhibit a broad range of electromagnetic phenomena. Nanomaterials building superlattices from individual nanoparticles via templateconfined dna mediated assembly qingyuan lin,1,3 jarad a. Mar 28, 2018 an alternative strategy to realize dnaassembled plasmonic nanostructures is based on the dna origami technique see fig.
Building superlattices from individual nanoparticles via. However, manufacturing dynamic plasmonic nanostructures that are efficiently responsive to different stimuli is still a challenging task. Research in this area is progressing rapidly, and the controlled, computeraided design of increasingly complex structures is becoming feasible. Dna functionalized plasmonic nanostructures for biosensing. Gleb finkelstein, supervisor thomas labean harold baranger henry everitt nicholas buchler an abstract of a dissertation submitted in partial ful llment of the requirements for. Indeed, the tunability afforded by the sequencespecific interactions inherent to oligonucleotides has been leveraged to assemble nps into many exotic structures, including colloidal crystals that feature more than 30 different lattice symmetries, tunable interparticle. Dna nanotechnology for building sensors, nanopores and ion. Although mies theory of light scattering and absorption by gold nanospheres was reported more than a century ago8, it is only recently that. Dynamic actuation of dnaassembled plasmonic nanostructures. Using the traptavidin dna array as a template, we assemble gold nanoparticles to form linear plasmonic nanostructures in a programmable manner. Plasmonic nanostructures through dnaassisted lithography. Such dna nanostructures were used for building versatile chiral plasmonic nanostructures from static to dynamic. Dna origami is a powerful approach for assembling plasmonic nanoparticle dimers and raman dyes with high yields and excellent positioning control.
In addition to these examples, dna nanostructures can be used as precise templates for arranging metal nanoparticles and creating plasmonic. Unlike propagating plasmons supported on a bulk metal sur face, nanoparticle. A dna origamibased chiral plasmonic sensing device acs. Dna origami nanophotonics and plasmonics at interfaces. The traptavidin dna conjugates thus provide a convenient platform for onedimensional assembly of biotinylated nanomaterials for many biomedical applications from drug delivery to biosensing. Researchers have adopted these techniques to an increasing extent for creating. Martin nanophotonics and metrology laboratory, swiss federal institute of technology epfl, lausanne, ch1015, switzerland olivier. A plasmonic metamaterial is a metamaterial that uses surface plasmons to achieve optical properties not seen in nature. Dnabased selfassembly of chiral plasmonic nanostructures with. We report a dna assisted lithography dali method that combines the structural versatility of dna origami with conventional lithography techniques to create discrete, welldefined, and entirely metallic nanostructures with designed plasmonic properties.
One thread of this endeavour is the design and characterisation of selfassembling 3d nanostructures based on wireframe. Building plasmonic nanoarchitectures with dna wenlong cheng 1nanobionics research laboratory, department of chemical engineering, monash university, room 230, building 36, clayton, victoria 3800 australia. On account of the achievements above, wangs group extended the homogeneous assembly of gold nanoparticles into heterogeneous plasmonic nanostructures by using the dna origami clamps and studied the plasma coupling among the assembled plasmonic nanostructures figure 4c. In this account, a variety of static and dynamic chiral plasmonic nanostructures enabled by dna nanotechnol. Bottomup assemblies of plasmonic nanoparticles exhibit unique optical effects. It is then functionalized with one aunr on each arm of the cross to form a plasmonic nanostructure. Plasmons are produced from the interaction of light with metaldielectric materials. Reconfigurable threedimensional gold nanorod plasmonic.
Metamaterials obtain their unique optical properties from the precise arrangement of light. Internal optical forces in plasmonic nanostructures t. Internal optical forces in plasmonic nanostructures. Nov 09, 2011 dna nanotechnology provides a versatile foundation for the chemical assembly of nanostructures.
Osa internal optical forces in plasmonic nanostructures. The concept of dna origami was introduced by rothemund in 2006 73 and relies on the folding of a long scaffold ssdna strand usually derived from the m phage genome by hundreds of short staple strands into arbitrary 2d and 3d shapes. Schematic of plasmonic nanostructures assembled from libraries of plasmonic atoms with various dna motifs. Designer sensors, nanopores and ionchannels built from dna have great potential for both crossdisciplinary research and applications. Reconfigurable plasmonic diastereomers assembled by dna. Lshaped gnr dimers were assembled on rhombusshaped dna origami templates. We describe a method for creating metalcoated nanostructures using dna origami templates and a photochemical metallization technique. We report a dnaassisted lithography dali method that combines the structural versatility of dna origami with conventional lithography techniques to create discrete, welldefined, and entirely metallic nanostructures with designed plasmonic properties. Chiral plasmonic nanostructures twisted by dna the optical properties of selfassembled plasmonic nanoparticles can reversibly be tuned by using dna strands. Pdf building plasmonic nanostructures with dna wenlong. Wyss institute researchers have developed a method for building complex nanostructures out of short synthetic strands of. Metallic nanostructures based on selfassembling dna. To demonstrate the potential of dna origami for the programmable and nanometreprecise design of plasmonic nanostructures, we targeted an.
Andrea di falco noblemetal nanoparticles nps occupy the top drawer in the toolbox of scientists working with optical materials. Building blocks for the assembly of nanostructures tina gschneidtner department of chemistry and chemical engineering chalmers university of technology gothenburg, sweden abstract the natural world and many man made technologies are driven by selfassembly, involving the autonomous organization of individual components as a result of specific. Dna nanotechnology has revolutionised the capabilities to shape and control threedimensional structures at the nanometre scale. We present a computational study of the internal optical forces arising in plasmonic gap antennas, dolmen structures and split rings. These methods to build from the bottomup using dna as a construction material are based on programmable and fully predictable watsoncrick base pairing. Nanomaterials building superlattices from individual. Apr 27, 2018 structural dna nanotechnology provides unique, wellcontrolled, versatile, and highly addressable motifs and templates for assembling materials at the nanoscale. Dnaassisted assembly of gold nanostructures and their. The recent introduction of the dna origami technique. The dominating role of spherical aunps as key player for building dna assembled chiral plasmonic nanostructures was terminated after the successful. Dna functionalized plasmonic nanostructures for biosensing and living cell imaging wang chenxu school of chemical and biomedical engineering 2015. Dna nanostructuredirected assembly of metal nanoparticle. Surfaceenhanced raman scattering plasmonic enhancement using. The supporting information is available free of charge on the acs publications website at doi.
Dna has become a powerful tool for constructing highly ordered materials from nanoparticle np building blocks. We demonstrate the realization of dna assembled reconfigurable plasmonic metamolecules, which can respond to a wide range of ph changes in a programmable manner. Dna origami can be used to create a variety of complex and geometrically unique nanostructures that can be further modified to produce building blocks for applications such as in optical metamaterials. Dna is the intelligent molecule that stores and transmits genetic information in biological systems. Stepgrowth polymerization of traptavidindna conjugates for. Notably, an enzymebased fabrication method of physical dna. It is a powerful tool for designing various nanostructures and shapes because of inarguably selfassembling nature, precise hybridization, easy to design and fairly predictable dna geometric structure. In particular, with the dna origami technique,6,7 many complex 3d dna nanostructures have been constructed, such as closely packed 3d shapes,8,9 hollow dna boxes,10,11 3d shapes with curvatures,12 and.
Govorov3, tim liedl2 1physikdepartment, technische universitat munchen, am coulombwall 4a, 85748 garching. Surfaceenhanced raman scattering plasmonic enhancement. Building miniature optical antennas using dna as a guide 2 february 2018 dna assisted lithography. Pdf building plasmonic nanostructures with dna dan luo. We present a computational study of the internal optical. A vast library of plasmonic atoms can be synthesized using wetchemistry approaches.
We find that very strong internal forces perpendicular to the propagation direction appear in these systems. Reconfigurable three dimensional gold nanorod plasmonic nanostructures organized on dna origami tripod. Stimulusresponsive plasmonic chiral signals of gold nanorods. Department of materials science and engineering, mit. In this work, we demonstrate the chemical synthesis of dna assembled bimetallic plasmonic nanoparticles, in which dna serves as both the construction material and a. Here we demonstrate a stimulusresponsive plasmonic nanosystem based on dna origamiorganized gold nanorods gnrs. Metallic nanostructures based on selfassembling dna templates for studying optical phenomena by mauricio pilopais department of physics duke university date. Dnabased selfassembly of chiral plasmonic nanostructures.