Article
Chemistry, Analytical
Meng-Qi He, Yongjian Ai, Wanting Hu, Xiaomeng Jia, Lei Wu, Mingyu Ding, Qionglin Liang
Summary: By using DNA as an etching agent, it is possible to control the morphology and optical properties of plasmonic nanoparticles, while also introducing fluorescence properties. This strategy allows for precise tuning of localized surface plasmon resonance (LSPR) and fluorescence-composited dual-mode signals.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Yan Yu, Yujun Xie, Pengfei Zhang, Wei Zhang, Wenxing Wang, Shuyu Zhang, Qiongrong Ou, Wei Li
Summary: The design of unique U-SiO2 dielectric support nanoparticles successfully regulates the surface plasmon resonance properties of small metallic nanoparticles. The formation of plasmonic hot spots leads to highly efficient visible-light-driven photocatalytic activity.
Article
Chemistry, Multidisciplinary
Soohyun Lee, Jaewon Lee, Sungwoo Lee, MohammadNavid Haddadnezhad, Myeong Jin Oh, Qiang Zhao, Sungjae Yoo, Lichun Liu, Insub Jung, Sungho Park
Summary: The rational design of PtAu double nanoframes (DNFs) with plasmon-enhanced electrocatalytic activity for the methanol oxidation reaction (MOR) is reported. The synthetic strategy for the DNFs involves multiple synthetic chemical steps including Au growth, Pt deposition, and Au etching. The DNFs exhibit tunable intra-nanogap distance, with residual Au adatoms acting as light entrappers and producing plasmonic hot spots between inner and outer frames through localized surface plasmon resonance (LSPR) coupling, resulting in enhanced electrocatalytic activity for the MOR. Hierarchically structured triple NFs (TNFs) are also synthesized, showing superior electrocatalytic activity under light irradiation compared to dark conditions.
Review
Chemistry, Analytical
Seunghun Lee, Hyerin Song, Heesang Ahn, Seungchul Kim, Jong-ryul Choi, Kyujung Kim
Summary: This article discusses the latest research methods and experimental results of fiber-optic LSPR sensors, confirming their potential applications in the fields of chemistry, physics, and biology with the ability to achieve high sensitivity target measurements.
Article
Polymer Science
Mohd Hafiz Abu Bakar, Nur Hidayah Azeman, Nadhratun Naiim Mobarak, Nur Afifah Ahmad Nazri, Tengku Hasnan Tengku Abdul Aziz, Ahmad Rifqi Md Zain, Norhana Arsad, Ahmad Ashrif A. Bakar
Summary: This research investigates the physicochemical properties of biopolymer succinyl-kappa-carrageenan as a potential sensing material for NH4+ Localized Surface Plasmon Resonance (LSPR) sensor. The results show that AgNP-Succinyl-kappa-carrageenan LSPR has higher performance than AgNP-kappa-carrageenan LSPR, broader detection range than the conventional method, and high selectivity toward NH4+. The adsorption of NH4+ on kappa-carrageenan and succinyl-kappa-carrageenan were through multilayer and chemisorption process that follows Freundlich and pseudo-second-order kinetic model.
Article
Thermodynamics
Ao Wang, Yimin Xuan
Summary: Research on localized hot-spot phenomena in photovoltaic modules shows that if these issues are not properly addressed, they may cause damage to the entire module. Studies have found that power conversion efficiency due to localized hot spots may decrease from 15.61% to 1.58%, while non-uniform irradiation and environmental obstructions may also lead to the generation of high-temperature hot spots, reducing cell efficiency by as much as 5.7%.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Multidisciplinary
Haemin Song, Jin Hyeok Lee, So Young Eom, Dongsun Choi, Kwang Seob Jeong
Summary: The mid-IR quantum plasmon resonance (QPR) of self-doped Ag2Se nanocrystals was studied, and a narrow bandwidth QPR was achieved by chemical modification of the nanocrystal surface. Thorough analysis using various experimental methods and theoretical models revealed the effect of electron density and quantum coupling on plasmonic resonance. The results demonstrate that self-doped silver selenide quantum dots are excellent systems for studying mid-IR QPR.
Article
Chemistry, Multidisciplinary
Yoshiki Suganami, Tomoya Oshikiri, Xu Shi, Hiroaki Misawa
Summary: A photoanode structure with an Au-Ag alloy nanoparticles, TiO2 thin film, and Au film under ultrastrong coupling conditions was developed to achieve efficient photochemical reactions and high photoelectric conversion efficiency. The increased hot-electron injection efficiency in this structure led to a Faraday efficiency of more than 70% for O-2 evolution in water oxidation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Vasilii Burtsev, Elena Miliutina, Pavel Ulbrich, Roman Elashnikov, Vaclav Svorcik, Martin Orendac, Oleksiy Lyutakov
Summary: This paper presents a method for plasmon-induced organic reactions using the coupling enhancement between silver nanoparticles and gold gratings, which leads to highly efficient plasmon-triggered reactions.
ACS APPLIED NANO MATERIALS
(2022)
Article
Spectroscopy
Shaoyun Chen, Qi Li, Du Tian, Pai Ke, Xinxin Yang, Qingyun Wu, Jian Chen, Chenglong Hu, Hongbing Ji
Summary: The evaporation-induced aggregation was used to assemble long silver nanowires into a highly aligned structure to achieve uniform hot spots for SERS detection. The glass slide with well-aligned silver nanowires acted as a high sensitivity and excellent reproducibility SERS substrate for detecting analytes.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Wei Zhang, Tianxing Zheng, Bin Ai, Panpan Gu, Yuduo Guan, Yu Wang, Zhiyuan Zhao, Gang Zhang
Summary: Au-P-Au-coupled gold nanoparticle platforms with multiple nanogaps were fabricated using nanoskiving and polymer-assisted assembly. The platform showed strong electric field enhancement due to the confinement of incident light, leading to significant surface-enhanced Raman scattering performance and sensitive detection of glucose.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Amir Ziv, Omer Shoseyov, Prajith Karadan, Brian P. Bloom, Sharone Goldring, Tzuriel Metzger, Shira Yochelis, David H. Waldeck, Roie Yerushalmi, Yossi Paltiel
Summary: A nanoscale chirality sensor has been proposed for continuously monitoring molecular chirality in real-time and for chiral recognition of small quantity samples, utilizing a gold nanofloret hybrid structure.
Article
Chemistry, Multidisciplinary
Talgat Shugabaev, Vladislav O. Gridchin, Sergey D. Komarov, Demid A. Kirilenko, Natalia V. Kryzhanovskaya, Konstantin P. Kotlyar, Rodion R. Reznik, Yelizaveta I. Girshova, Valentin V. Nikolaev, Michael A. Kaliteevski, George E. Cirlin
Summary: In this study, hybrid nanostructures based on InGaN nanowires with decorated plasmonic silver nanoparticles were investigated. It was found that plasmonic nanoparticles caused the redistribution of room temperature photoluminescence between short-wavelength and long-wavelength peaks of InGaN nanowires. The short-wavelength maxima decreased by 20%, while the long-wavelength maxima increased by 19%. This phenomenon was attributed to energy transfer and enhancement between different parts of the nanowires with varying In content and a proposed Frohlich resonance model was used to explain the enhancement effect.
Article
Chemistry, Physical
G. Romanovskaya, M. Koroleva
Summary: The study investigated the impact of sodium citrate concentration in a reaction mixture on the production of anisotropic silver nanostructures with a required optical spectrum of localized surface plasmon resonance. It was found that different concentrations of sodium citrate during the photochemical reduction of silver nitrate lead to the formation of silver nanoparticles with decahedral geometry, dendritic NPs, and spherical silver NPs under optimal conditions.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Analytical
Yuhuan Gao, Jun Wang, Weina Wang, Tingting Zhao, Yanyun Cui, Pingping Liu, Shenghao Xu, Xiliang Luo
Summary: A simple and powerful Au NST@SiO2-based PEF probe with 20 symmetric hot spots was developed for highly sensitive intracellular miRNA imaging. By regulating the thickness of the silica shell, the distance between Au NSTs and fluorescent dyes was controlled, resulting in an optimal fluorescence enhancement (21-fold).
ANALYTICAL CHEMISTRY
(2021)
