Article
Chemistry, Multidisciplinary
Jun-Yu Li, Wei Li, Jin Liu, Jie Zhong, Renming Liu, Huanjun Chen, Xue-Hua Wang
Summary: By integrating a single quantum dot with a single gold nanorod, the strong coupling between quantum dots and plasmonic nanoparticles has been achieved, opening up a new pathway for solid-state quantum information processing. Utilizing a wedge nanogap cavity, the plasmonic electric fields were effectively confined in the nanoshell of the quantum dot, leading to the largest spectral Rabi splitting reported so far.
Article
Nanoscience & Nanotechnology
Yuzhou Pu, Thomas Pons
Summary: Gold nanoparticles, particularly nanorods (AuNRs), have high absorption cross sections in the near-infrared (NIR) range, making them valuable as photosensitizers for cancer treatment. By combining AuNRs with TiO2, the hybrid nanoparticles can generate hydroxyl radicals under NIR irradiation. The photodynamic effect induced by these nanoparticles is more efficient in killing cancer cells than the photothermal effect alone.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Youngkyu Hwang, Dong Jun Koo, Abdul Rahim Ferhan, Tun Naw Sut, Bo Kyeong Yoon, Nam-Joon Cho, Joshua A. Jackman
Summary: Gold nanorods are used for constructing surface-based nanoplasmonic biosensing platforms. Controlling the concentration of APTES during surface preparation affects density and sensitivity of the biosensing platform.
Article
Engineering, Environmental
Spela Slapnicar, Gregor Zerjav, Janez Zavasnik, Matjaz Finsgar, Albin Pintar
Summary: This study investigated the plasmonic Au (1 wt%) catalysts on hydrothermally synthesized TiO2 nanorods. Different sizes of Au nanoparticles (Au NPs) on Au/TiO2 catalysts were obtained by adjusting the mixing duration and calcination parameters. The presence of localized surface plasmon resonance effect was observed in all UV-Vis diffuse reflectance spectra of the catalysts, regardless of the size of Au particles. The study also identified superoxide anion radicals (O2 & BULL;-) as the main reactive oxygen species responsible for the oxidation of bisphenol A (BPA) under visible-light illumination.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Jin-Feng Liao, Ya-Ting Cai, Jun-Yan Li, Yong Jiang, Xu-Dong Wang, Hong-Yan Chen, Dai-Bin Kuang
Summary: The optoelectronic performance of CsPbBr3 nanocrystal is limited by charge carrier recombination and narrow light absorption range, which can be resolved through coupling with plasmonic Au nanoparticles. The CsPbBr3-Au nanocomposite exhibits excitation-wavelength dependent carrier transfer behavior, leading to improved CO2 photocatalytic reduction activity.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Michael A. Beuwer, Peter Zijlstra
Summary: The study shows that single self-assembled dimers of gold nanorods are effective refractometric sensors, with differences in sensitivity between bonding and antibonding modes. The trade-off between resonance linewidth and refractive index sensitivity is crucial in determining the figure of merit for such sensors, making nanorod dimers exciting candidates for multicolor and multiplexed sensing.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Review
Chemistry, Analytical
Nebu John, Anslin Thankachan Mariamma
Summary: Excess L-amino acid in the Murchison meteorite, circular polarization effect in the genesis of stars, and chirality in interstellar molecules contribute to the origin of life on Earth. Chiral-sensitive techniques have been employed to investigate symmetries of the universe, design effective drugs, and study chiral biomolecules. The relationship between light and chiral molecules is utilized to explore and probe such molecules using spectroscopy techniques, revealing distinct optical responses and advancing important information contents in chiroptical spectroscopy.
Article
Chemistry, Analytical
Xin Li, Fei Wang, Xue Wang, Wenjie Zhao, Hongyao Liu, Mingxiao Li, Yang Zhao, Lingqian Zhang, Chengjun Huang
Summary: This article introduces a novel plasmonic-photonic hybrid configuration for fiber-optic sensors, which integrates a dielectric coating and dispersed gold nanoparticles onto the fiber tip. This configuration enhances sensing performance and simplifies the fabrication process. By coupling localized surface plasmon resonance with cavity interference mode, a hybrid plasmonic-photonic resonance is successfully excited with enhanced sensitivity, high stability, and precise tunability of resonance frequencies. Experimental results demonstrate real-time monitoring of biomolecular binding interactions at nanomolar concentration, showcasing the potential of this plasmonic-photonic configuration in developing miniaturized high-performance sensing probes.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Shang-Yang Yu, Chang-Hsuan Tu, Jiunn-Woei Liaw, Mao-Kuen Kuo
Summary: In this work, the generation of initiated plasmonic nanobubbles and subsequent microbubbles in gold nanorod (GNR) colloidal solution induced by a pulsed laser is studied. The surface plasmon resonance (SPR)-enhanced photothermal effect of GNRs initiates nanobubbles, which then trigger the optical breakdown of water. The dynamic formations of nanobubbles and microbubbles in GNR colloids are investigated using probing He-Ne laser and ultrasonic transducer. Three types of microbubbles are identified based on optical and photoacoustic signals. The thresholds of pulsed energy to induce different types of microbubbles are reduced as the concentration of GNRs increases, especially in the near-infrared (NIR) region and close to the SPR of GNRs. This study provides insights into the relationship between plasmonic nanobubbles and triggered microbubbles.
Article
Nanoscience & Nanotechnology
A. W. Zaibudeen, Ranjini Bandyopadhyay
Summary: In this study, the effects of nanoparticle size, nanoparticle and surfactant concentrations on the drying kinetics and evaporation-induced nanoparticle assemblies in dried deposit patterns of gold nanoparticle (Au-NP) dispersion droplets are investigated. The results show that the drying process, deposit morphology, and plasmonic activity of the deposited Au-NPs can be fine-tuned by varying the CTAB concentration, nanoparticle size, and nanoparticle concentration.
Article
Materials Science, Multidisciplinary
Jian Zhang, Zhiwei Li, Yaocai Bai, Yadong Yin
Summary: Reducing the symmetry of plasmonic nanostructures offers great opportunities for controlling their photophysical properties and applications. This article presents a novel and robust synthesis approach to gold nanocups, allowing precise control of their size, morphology, and composition. The resulting nanocups demonstrate excellent performance in plasmonic quantum dot random lasing.
APPLIED MATERIALS TODAY
(2022)
Review
Chemistry, Analytical
Hanbo Li, Xinshuang Gao, Chenqi Zhang, Yinglu Ji, Zhijian Hu, Xiaochun Wu
Summary: This review discusses the wet-chemical synthesis and self-assembly fabrication of gold-NP-based chiral nanostructures, focusing on the growth and assembly methods of chiral nanostructures and the design and synthesis of chiral nanostructures with tunable and amplified plasmonic circular dichroism responses. In addition, the review discusses the recent trends and applications in the biomedical field.
Article
Chemistry, Analytical
Kai-Xin Xie, Qian Liu, Shu-Shu Jia, Xiu-Xian Xiao
Summary: The introduction of a hollow plasmonic structure led to enhanced surface plasmon-coupled emission (SPCE), resulting in significant fluorescence signal enhancements. This was primarily attributed to the unique hot-spot plasmonic structure between GNS and gold substrate, the intense electromagnetic field of GNSs, and the strong coupling interactions between fluorescence and surface plasmons.
ANALYTICA CHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Ching -Ho Tien, Hui-Hsuan Tsai, Lung -Chien Chen
Summary: This study proposes a surface ligand passivation strategy to enhance the photonic characteristics and stability of CsPbBr3 perovskite nanocomposites by modifying PeQDs with didodecyl dimethyl ammonium bromide (DDAB) and gold nanoparticles (AuNPs). The incorporation of DDAB and AuNPs improved the photoluminescence intensity and external quantum efficiency of the LEDs.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Applied
Min Jia, Shuang Chen, Tingting Shi, Chunyang Li, Yanping Wang, Hongyan Zhang
Summary: The PBELISA method using plasmonic biomimetic technology combined with MIP film and CAT-mediated AuNPs growth achieved ultra-sensitive visual detection of BPA; with a visual limit of detection of 40 pg/mL, the method showed good dynamic linear response and high recovery rates.