- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
Chemical Nanoplasmonics: Emerging Interdisciplinary Research Field at Crossroads between Nanoscale Chemistry and Plasmonics
摘要： Plasmonics research deals with understanding and manipulating the interaction between light and matter at a scale that is significantly smaller than the wavelength of light (e.g., metal nanoparticles). Such an interaction can be correlated with various forms of energy and signals such as thermal energy and optical spectra. Research efforts in plasmonics range from rationally designing and precisely synthesizing nanostructures that allow for unraveling and reliably tuning novel and useful plasmonic properties (e.g., surface-enhanced spectroscopies and photothermal effects) to ultimately obtaining and utilizing plasmonic functionalities for applications, for example, in the biomedical field. With enormous potential and versatility in terms of plasmonic materials and devices, the principles of plasmonics are expected to provide new or improved solutions to many important challenges in various subfields of chemistry, including nanoparticle chemistry, catalytic reactions, surface-enhanced Raman scattering, photovoltaics, sensing, biochemistry, and therapeutics. Additionally, many hurdles and issues related to the advances and applications of plasmonics can be addressed by material- or property-based chemistry at the nanoscale (i.e., nanochemistry), while chemical principles and methods can offer new research directions in plasmonics. Nanochemistry allows scientists to develop exquisitely accurate methods for the synthesis of nanostructures with high precision and provides tools for functionalizing and analyzing complex plasmonic nanostructures (e.g., heterostructured-nanoparticles). Therefore, recent advancements in nanochemistry with plasmonic materials have made a great impact on the proper use and real applications of plasmonics, and plasmonics offers in turn new pathways and tools for chemical processes. The field of chemical nanoplasmonics includes the study of nanoscale chemistry for the advancement of plasmonics and the use of plasmonics to address key issues and challenges in chemistry. Newly emerging principles, methods, and materials in plasmonics can be useful in various fields of chemistry, including optical and chemical hot spots, typically based on strong electromagnetic fields formed within plasmonic nanostructures, as well as single-molecule and 3D SERS with plasmonic hot-spot platforms. Plasmonic multimers (e.g., gold nanoparticle dimers), plasmonic supercrystals, plasmonic nanoparticle lattices, gold nanobipyramids, virus-sized gold nanorods, spherical nucleic acids, plasmonic metamaterials, and chiral plasmonic structures are some of the key nanostructures for materials chemistry-based plasmonics. Hot charge carriers and plasmon-driven catalysis have been identified as important directions for many subfields of chemistry including physical chemistry, materials chemistry, and catalysis. Further, newly emerging platforms such as plasmonic nanoparticle-interfaced cell membranes, DNA origami-based plasmonics, and graphene-based nonlinear plasmonics have emerged as next-generation platforms that can provide new ways of forming functional materials and devices, including optical and computing devices.
关键词： photovoltaics,plasmonics,nanochemistry,biochemistry,nanoplasmonics,sensing,surface-enhanced Raman scattering,therapeutics
更新于2025-09-12 10:27:22
-
Plasmonic Metamaterials for Nanochemistry and Sensing
摘要： Plasmonic nanostructures were initially developed for sensing and nanophotonic applications but, recently, have shown great promise in chemistry, optoelectronics, and nonlinear optics. While smooth plasmonic films, supporting surface plasmon polaritons, and individual nanostructures, featuring localized surface plasmons, are easy to fabricate and use, the assemblies of nanostructures in optical antennas and metamaterials provide many additional advantages related to the engineering of the mode structure (and thus, optical resonances in the given spectral range), field enhancement, and local density of optical states required to control electronic and photonic interactions. Focusing on two of the many applications of plasmonic metamaterials, in this Account, we review our work on the sensing and nanochemistry applications of metamaterials based on the assemblies of plasmonic nanorods under optical, as well as electronic interrogation.
关键词： field enhancement,sensing,localized surface plasmons,optical antennas,nanochemistry,optical resonances,electronic interrogation,surface plasmon polaritons,metamaterials,Plasmonic nanostructures
更新于2025-09-12 10:27:22
-
Functional Macromolecule‐Enabled Colloidal Synthesis: From Nanoparticle Engineering to Multifunctionality
摘要： The synthesis of well-defined inorganic colloidal nanostructures using functional macromolecules is an enabling technology that offers the possibility of fine-tuning the physicochemical properties of nanomaterials and has contributed to a broad range of practical applications. The utilization of functional reactive polymers and their colloidal assemblies leads to a high level of control over structural parameters of inorganic nanoparticles that are not easily accessible by conventional methods based on small-molecule ligands. Recent advances in polymerization techniques for synthetic polymers and newly exploited functions of natural biomacromolecules have opened up new avenues to monodisperse and multifunctional nanostructures consisting of integrated components with distinct chemistries but complementary properties. Here, the evolution of colloidal synthesis of inorganic nanoparticles is revisited. Then, the new developments of colloidal synthesis enabled by functional macromolecules and practical applications associated with the resulting optical, catalytic, and structural properties of colloidal nanostructures are summarized. Finally, a perspective on new and promising pathways to novel colloidal nanostructures built upon the continuous development of polymer chemistry, colloidal science, and nanochemistry is provided.
关键词： polymer chemistry,nanochemistry,multifunctionality,colloidal synthesis,functional macromolecules,nanoparticle engineering,colloidal science
更新于2025-09-11 14:15:04