Chiral Plasmonic Nanostructures Enabled by Bottom-Up Approaches

Abstract

We present a comprehensive review of recent developments in the field of chiral plasmonics. Significant advances have been made recently in understanding the working principles of chiral plasmonic structures. With advances in micro- and nanofabrication techniques, a variety of chiral plasmonic nanostructures have been experimentally realized; these tailored chiroptical properties vastly outperform those of their molecular counterparts. We focus on chiral plasmonic nanostructures created using bottom-up approaches, which not only allow for rational design and fabrication but most intriguingly in many cases also enable dynamic manipulation and tuning of chiroptical responses. We first discuss plasmon-induced chirality, resulting from the interaction of chiral molecules with plasmonic excitations. Subsequently, we discuss intrinsically chiral colloids, which give rise to optical chirality owing to their chiral shapes. Finally, we discuss plasmonic chirality, achieved by arranging achiral plasmonic particles into handed configurations on static or active templates. Chiral plasmonic nanostructures are very promising candidates for real-life applications owing to their significantly larger optical chirality than natural molecules. In addition, chiral plasmonic nanostructures offer engineerable and dynamic chiroptical responses, which are formidable to achieve in molecular systems. We thus anticipate that the field of chiral plasmonics will attract further widespread attention in applications ranging from enantioselective analysis to chiral sensing, structural determination, and in situ ultrasensitive detection of multiple disease biomarkers, as well as optical monitoring of transmembrane transport and intracellular metabolism.

References in corpus (11)

• DNA-based Self-Assembly of Chiral Plasmonic Nanostructures with Tailored Optical Response
• Asymmetric transmission of linearly polarized light at optical metamaterials
• Atomically flat single-crystalline gold nanostructures for plasmonic nanocircuitry
• A plasmonic nanorod that walks on DNA origami
• A light-driven three-dimensional plasmonic nanosystem that translates molecular motion into reversible chiroptical function
• Selective control of reconfigurable chiral plasmonic metamolecules
• Plasmonic Toroidal Metamolecules Assembled by DNA Origami
• Giant circular dichroism of a molecule in a region of strong plasmon resonances between two neighboring gold nanocrystals
• Circular Dichroism of Chiral Molecules in DNA- Assembled Plasmonic Hotspots
• Optically resolving the dynamic walking of a plasmonic walker couple
• Radius and chirality dependent conformation of polymer molecule at nanotube interface

Cited by in corpus (10)

• Recent advances in DNA origami-engineered nanomaterials and applications
• A Chirality-Based Quantum Leap
• Reconfigurable Plasmonic Chirality: Fundamentals and Applications
• A rotary plasmonic nanoclock
• Magnesium for Dynamic Nanoplasmonics
• DNA-assembled nanoarchitectures with multiple components in regulated and coordinated motion
• Molecular-Induced Chirality Transfer to Plasmonic Lattice Modes
• Transformable Plasmonic Helix with Swinging Gold Nanoparticles
• Probing the optical chiral response of single nanoparticles with optical tweezers
• Generalization of the circular dichroism from metallic arrays that support Bloch-like surface plasmon polaritons