Article
Chemistry, Physical
Alessio Gabbani, Giulio Campo, Valentina Bonanni, Peter van Rhee, Gregorio Bottaro, Cesar de Julian Fernandez, Valentina Bello, Elvira Fantechi, Francesco Biccari, Massimo Gurioli, Lidia Armelao, Claudio Sangregorio, Giovanni Mattei, Peter Christianen, Francesco Pineider
Summary: Tuning the plasmonic response with an external magnetic field is an important approach to achieve active magneto-plasmonic devices. This study demonstrates a large magnetoplasmonic response of silver nanoparticles at high magnetic fields, and provides direct experimental evidence of field-induced splitting of circular plasmonic modes.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Liangxi Zhu, Zhuoxuan Lu, Liming Zhang, Nongyue He
Summary: This study presents a facile one-pot method for synthesizing AuNRs without seeding agents. By adjusting the pH of the growth solution and optimizing the concentrations of reagents, AuNRs with different aspect ratios and the longest LSPR peak position reaching 1340 nm were successfully prepared.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Prabhat Mishra, Anil K. Debnath, Sharmistha Dutta Choudhury
Summary: In this study, thin films of an emerging plasmonic material, TiN, were prepared and characterized. The effectiveness of TiN for fluorescence coupling in metal-dielectric structures was examined. The results showed that TiN substrates have comparable performance to conventional Au substrates for surface plasmon-coupled emission and waveguide-coupled emission. Additionally, the TiN thin films are reusable.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Analytical
Qian Yang, Jinhui Shang, Yancao Chen, Decui Tang, Yuzhi Ouyang, Bin Xiong, Xiaobing Zhang
Summary: Ligand-induced receptor clustering on cell membrane plays crucial roles in pattern recognition and transmembrane signaling. A data-mining-integrated plasmon coupling microscopy has been proposed recently to study the dynamic interactions between receptor clusters on cell surface, providing insights into the dynamic characteristics of receptor clustering.
ANALYTICAL CHEMISTRY
(2021)
Article
Biophysics
Yunlei Xianyu, Shixuan Su, Jing Hu, Ting Yu
Summary: This study introduces a novel approach for detecting beta-glucuronidase activity by modulating the silver mirror reaction on gold nanostars, leading to a significant change in surface plasmon resonance. This plasmonic nanosensor shows great promise for enzyme detection with a detection limit as low as 0.1 U/L.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Ryo Kato, Mitsuhiro Uesugi, Yoshie Komatsu, Fusatoshi Okamoto, Takuo Tanaka, Fumihisa Kitawaki, Taka-aki Yano
Summary: This study developed a new method for synthesizing polymer-coated silver nanoparticles, which can stably coat polymer on the surface of silver nanoparticles by using functional polymer and disulfide-containing anchoring groups. The polymer layer can achieve fluorescence enhancement and effectively suppress fluorescence quenching, making it a promising platform for highly sensitive medical diagnostic biosensing.
Article
Materials Science, Multidisciplinary
M. Novakovic, M. Popovic, P. Noga, D. Vana, C. Ronning
Summary: This study investigates the effects of pure silver and silver/gold co-implanted TiN thin films on their optical properties, significantly reducing optical losses and approaching the optical performance of pure gold. This optical tuning of TiN opens up new possibilities for its implementation in plasmonic applications.
Article
Chemistry, Multidisciplinary
Anastasiia A. Sapunova, Yulia I. Yandybaeva, Roman A. Zakoldaev, Alexandra V. Afanasjeva, Olga V. Andreeva, Igor A. Gladskikh, Tigran A. Vartanyan, Daler R. Dadadzhanov
Summary: Chiral plasmonic nanostructures can be induced in achiral ensembles of gold nanoparticles through irradiation with circularly-polarized light. Embedding the particles in a nanoporous silicate matrix enhances the chirality, and selectively modifying them with circularly-polarized light results in ensemble of plasmonic metal nanoparticles demonstrating circular dichroism.
Article
Chemistry, Physical
Ora Bitton, Satyendra Nath Gupta, Yong Cao, Alexander Vaskevich, Lothar Houben, Tamar Yelin, Gilad Haran
Summary: The study focused on the impact of the adhesion layer used in the fabrication of metal nanostructures on the spectral linewidths of plasmonic cavities. It was found that reducing the thickness of the adhesion layer could decrease the linewidths of both bright and dark plasmonic modes, leading to an increase in the quality factor of the PCs and facilitating strong-coupling with semiconductor quantum dots.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Analytical
Junjie Wang, Xiaoping Yue, Yulong Zhang, Chengcheng Zhu, Xing Kang, Hai-Dong Yu, Gang Lu
Summary: In this study, a glucose sensor based on plasmonic nanostructures was developed using gold-silver core-shell nanoparticles. The concentration of glucose and hydrogen peroxide could be quantitatively determined using colorimetric sensing. The sensitivity of the sensor was found to be significantly affected by the shell thickness.
Article
Chemistry, Multidisciplinary
[Anonymous]
Summary: Biomimetic microneedles-based adhesive electrode is developed for bioelectrical signal monitoring. This electrode utilizes the mechanical locking of the microneedle array and adhesion to synergistically enhance stable adhesion on the skin surface, enabling continuous and robust bioelectric monitoring.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Spectroscopy
Flavia C. Marques, Gustavo C. Azevedo, Carlos A. Senna, Braulio S. Archanjo, Charlane C. Correa, Renato C. Matos, Diego Pereira dos Santos, Gustavo F. S. Andrade
Summary: The preparation of metal core@shell hybrid materials shows promise for SERS and SEF applications. Fine control over the thickness of the covering layer is essential. Thicker oxide layers enhance the SEF effect, while thinner oxide layers enhance the SERS effect.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Nanoscience & Nanotechnology
Yupeng Huang, Haijiao Xu, Zhihao Zhou, Bofan Jiang, Lihua Li, Zhijun Ma, Shifeng Zhou
Summary: Gold nanorods (AuNRs) possess excellent optical properties, but their poor thermal stability limits their applications. In this study, a thermally stable AuNR-silicone resin (MSR) composite was successfully prepared, and its high nonlinear absorption coefficient was measured, demonstrating its potential for applications in the optical communication window.
Article
Chemistry, Physical
Arin S. Preston, Robert A. Hughes, Nathaniel L. Dominique, Jon P. Camden, Svetlana Neretina
Summary: Silver is highly regarded as a plasmonic material in the electromagnetic spectrum, but its properties degrade easily in operating environments. The emergence of shell-isolated plasmonic nanostructures offers new opportunities for utilizing silver, and the atomic layer deposition technique can be used to design these structures for better durability evaluation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Ke Luo, Kaiqiang Wang, Min-Cheol Lim, Ki-Baek Jeong, Young-Rok Kim
Summary: This study reports a simple and green approach for fabricating gold-shelled starch microbeads that exhibit significant broadband absorption. By controlling the concentration of gold seeds, the diameter of the resulting particles can be adjusted, allowing for size-controllable core-shell plasmonic particles with excellent SERS activity. The method offers an effective means of large-scale production and can be applied to various highly sensitive analytical systems.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)