Article
Nanoscience & Nanotechnology
Seyed M. Sadeghi, Rithvik R. Gutha, Sean Ramsay, Dustin Roberts, Christina Sharp
Summary: The study focused on the molding of coherent light scattering in the planes of Au metallic nanoantenna arrays using surface lattice resonances. Results showed that changing incident light polarization can lead to binary partition of scattered light energy, offering a polarization optical switching process, and as the heights of the nanoantennas increase, the energy transfer process becomes more continuous, offering mixture of the two scattering processes.
MATERIALS TODAY NANO
(2022)
Article
Nanoscience & Nanotechnology
Garoma Dhaba Bergaga, Belayneh Mesfin Ali, Teshome Senbeta Debela
Summary: In this study, we theoretically and numerically investigated the local field enhancement factor (LFEF), absorption, and extinction cross sections of different core-shell nanocomposites (NCs). We found that spherical and cylindrical core-shell NCs have two peaks in their LFEF, absorption, and extinction cross sections, while oblate and prolate spheroids exhibit three peaks. Furthermore, prolate core-shell spheroids have a higher LFEF tunability and intensity compared to their corresponding oblate structures. The study also found that spherical nanoshells have a higher LFEF than cylindrical and spheroidal core-shells of the same size and composition. Overall, the shape of the core-shell NCs determines the intensity, number, and positions of the peaks in the LFEF and optical cross sections. These findings have important implications for applications in optical sensing, bio-sensing, and electronic devices, particularly in the field of multi-channel sensing.
Article
Optics
Shangyu Zhang, Jian Dong, Wenjie Zhang, Minggang Luo, Linhua Liu
Summary: In this study, the specific influence mechanisms of host dissipation on the extinction efficiency factors of a plasmonic nanosphere are elaborated using a generalized Mie theory. The experimental results demonstrate that host dissipation has a significant impact on the position and properties of localized surface plasmon resonance.
Article
Optics
Zhiwei Hu, Ximin Cui, Yang Li, Xiaobo Han, Huatian Hu
Summary: This study numerically demonstrates a simple plasmonic nanocube-hexagonal-nanoplate heterodimer that exhibits a strong, tunable self-induced transparency window. It also observes multiple exciton-induced transparency windows. These findings are important for understanding and manipulating light-matter interactions.
Article
Chemistry, Physical
Celine Jegat, Edouard Rollin, Ludovic Douillard, Olivier Soppera, Keitaro Nakatani, Guillaume Laurent
Summary: The article presents a new method for patterning assemblies of gold nanorods on substrates and a study on the near-field coupling induced by the aggregation of the nanoparticles. By investigating single, dimer, and elongated aggregates of the nanorods, the study shows different types of near-field coupling efficiency depending on the incident light polarization, interparticle gaps, and angles between the nanorods. Hot spots of the near-field are associated with the interparticle gap regions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Minggang Luo, Junming Zhao, Linhua Liu, Mauro Antezza
Summary: This study focuses on the light-assisted temperature control in a complex nanoparticle network. By analyzing the light-induced thermal behavior, the boundary and quantitative effects of multiple scattering and thermal accumulation are determined using the Green's function approach. The results show that the more compact the nanoparticle ensemble is, the stronger the multiple scattering effect and the weaker the thermal accumulation effect. Furthermore, the polarization-dependent distribution is only observed in the compact ensemble.
Article
Engineering, Electrical & Electronic
Fan Wu, Rongzhen Jiao, Li Yu
Summary: Exploitation of strong light-matter interactions in plasmonic systems is crucial for fundamental studies and new applications. The study presents an analytic model of the interaction between localized surface plasmon resonances and excitons, providing important guidelines for achieving strong plasmon-exciton coupling. Rabi splittings and anticrossing behavior are demonstrated in the calculated extinction spectra, along with proposing an analytic model for describing strong coupling between excitons and plasmons in core-shell nanorod structures.
IEEE PHOTONICS JOURNAL
(2021)
Review
Nanoscience & Nanotechnology
Andrea Schirato, Margherita Maiuri, Giulio Cerullo, Giuseppe Della Valle
Summary: Metallic nanostructures with localized surface plasmons (LSPs) provide unprecedented opportunities for advanced photonic materials and devices. The generation and relaxation processes of hot electrons in LSPs have been intensively studied, but their practical applications remain challenging due to the complexity and broad energy range involved. This paper reviews the authors' contribution to understanding ultrafast hot electron dynamics in plasmonic nanostructures, including experimental techniques, numerical modeling, and the design of novel optical functionalities enabled by ultrafast hot-electron dynamics.
Article
Chemistry, Physical
Wajdi Chaabani, Julien Proust, Samuel Ouellet, Artur Movsesyan, Jeremie Beal, Renaud Bachelot, Tao Xu, Anne-Laure Baudrion, Pierre-Michel Adam, Denis Boudreau, Abdallah Chehaidar, Jerome Plain
Summary: The paper presents a new method to obtain hybrid dielectric-metal nanoparticles, with different types of hybrid colloidal structures achieved by increasing the stabilizing agent. The obtained colloidal heterostructures were analyzed and the optical properties were carefully studied, revealing a splitting phenomenon in the extinction spectra.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Varvara Athanasiou, Dimitra Stavroulaki, Foteini Arfara, Dimitrios Kampras, Ioannis Kleideris, Niki Roumelioti, Panagiota G. Fragouli, Georgios Patias, David Haddleton, Hermis Iatrou
Summary: A facile strategy for synthesizing hybrid nanoparticles with gold nanoshells that absorb NIR light was presented, allowing for fine-tuning of their optical properties. The nanoparticles showed significant temperature increase when irradiated with a low power laser, indicating their potential application in photothermal therapy.
ACS APPLIED NANO MATERIALS
(2021)
Article
Multidisciplinary Sciences
Michele Ghini, Nicola Curreli, Matteo B. Lodi, Nicolo Petrini, Mengjiao Wang, Mirko Prato, Alessandro Fanti, Liberato Manna, Ilka Kriegel
Summary: This study demonstrates the depletion layer engineering and control in ITO/In2O3 nanocrystals through tuning the shell thickness or photodoping, enabling the design and prediction of their optoelectronic properties and enhancing charge storage capability.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Eleonora Spurio, Jacopo Stefano Pelli Cresi, Giuseppe Ammirati, Samuele Pelatti, Alessandra Paladini, Sergio D'Addato, Stefano Turchini, Patrick O'Keeffe, Daniele Catone, Paola Luches
Summary: This study reports on the electron injection efficiency and the steady state absorptance at different photon energies for a composite system made of Au NPs embedded in a cerium oxide matrix. The results, obtained by femtosecond transient absorption spectroscopy, show that the excitation of localized surface plasmon resonances in the Au NPs leads to an ultrafast injection of electrons into the empty 4f states of the surrounding cerium oxide. The findings are important for the design of materials with high overall solar catalytic efficiency.
Review
Chemistry, Multidisciplinary
Viktoriia E. E. Babicheva
Summary: Plasmonics is a revolutionary concept in nanophotonics that combines the properties of both photonics and electronics by confining light energy to a nanometer-scale oscillating field of free electrons. It holds promise for various applications including optical communications, biophotonics, sensing, chemistry, and medical applications. Surface plasmons enable the development of advanced photonic designs with unprecedented capabilities, such as subwavelength waveguides, optical nanoresonators, super- and hyper-lenses, and light concentrators. This review highlights the optical processes and advancements in plasmonic applications, with a focus on field enhancement and collective effects in nanostructures.
Article
Engineering, Manufacturing
Yu Zhou, Guohu Luo, Yongxiang Hu, Di Wu, Cheng Hu, Minni Qu
Summary: In this study, femtosecond laser-induced transfer was used to assemble nanoparticles into a well-defined array on a flexible substrate, reducing the influence of plasmon resonances. The metal islands patterned on the substrate were transferred as spherical nanoparticles onto the polymer with small deposition deviation and large embedded depth. However, inhomogeneous laser absorption amplified the printing deviation and narrowed the process window. Plasmon resonance excited by laser caused localized optical field distribution, which affected absorption enhancement or suppression.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2023)
Article
Optics
Tianchen Zhao, Qiang Ma, Yajie Bian, Yuyi Zhang, Yiting Liu, Xiaolei Zhang, Botao Wu, E. Wu, Shitao Lou, Qingyuan Jin
Summary: In this study, we investigated the strong coupling of TDBC molecules near pure nano-triangular Ag prisms or Ag@Au hollow nanoshells. The Rabi splitting was observed when TDBC molecules were deposited on these substrates with plasmonic resonance peak matching closely with the absorption band of TDBC J-aggregates. The decrease in photoluminescence intensity with increasing temperature confirmed the decreasing plasmon-exciton coupling interaction.
CHINESE OPTICS LETTERS
(2021)
Correction
Chemistry, Analytical
Olga V. Kuznetsova, Nikolai G. Khlebtsov, Maciej Jarosz, Andrei R. Timerbaev
ANALYTICAL CHEMISTRY
(2022)
Article
Biochemical Research Methods
Boris Khlebtsov, Andrey Burov, Timofey Pylaev, Angelina Savkina, Ekaterina Prikhozhdenko, Daniil Bratashov, Nikolai Khlebtsov
Summary: The study utilized optical clearing technique to enhance SERS signal from subcutaneous tumor phantom, achieving a 5-fold increase in target-to-background ratio and at least a 10-fold decrease in total imaging time. The combination of optical clearing and SERS holds promise for clinical imaging of subcutaneous objects.
JOURNAL OF BIOPHOTONICS
(2022)
Article
Chemistry, Multidisciplinary
Ilya Doronin, Alexey S. Kalmykov, Alexander A. Zyablovsky, Evgeny S. Andrianov, Boris N. Khlebtsov, Pavel N. Melentiev, Victor Balykin
Summary: This study reveals the presence of a resonance-like behavior in the hybrid system &unique effect on photobleaching rate of dye molecules optically coupled to nanoparticle. The discovered effect is attributed to shifts in energy levels enabling effective depopulation of the triplet level, essential for the photodegradation mechanism. This discovery can pave the way for enhanced efficiency in optoelectronic and photovoltaic devices.
Article
Chemistry, Physical
Alla B. Bucharskaya, Nikolai G. Khlebtsov, Boris N. Khlebtsov, Galina N. Maslyakova, Nikita A. Navolokin, Vadim D. Genin, Elina A. Genina, Valery V. Tuchin
Summary: This article discusses the current challenges and prospects of plasmonic nanomedicine based on plasmonic photothermal therapy (PPT) and photodynamic therapy (PDT). It reviews the synthesis methods and applications of popular plasmonic nanoparticles and examines their interaction with tumor and healthy tissues. The unresolved issues of PPT and potential solutions are also discussed.
Article
Chemistry, Analytical
Boris N. Khlebtsov, Andrey M. Burov, Andrey M. Zakharevich, Nikolai G. Khlebtsov
Summary: In this study, a simple and quantitative non-enzymatic detection method for hydrogen peroxide was developed using Au@Ag nanorods with embedded Raman active molecules. The sensitivity of nanoparticles with different morphologies was compared, and triangle core-shell nanoparticles exhibited the highest sensitivity. Additionally, a colorimetric strategy was applied to fabricate a simple indicator paper sensor for fast detection of hydrogen peroxide in liquids.
Article
Cell Biology
Saba Naqvi, Vitaly A. Khanadeev, Boris N. Khlebtsov, Nikolai G. Khlebtsov, Monika S. Deore, Gopinath Packirisamy
Summary: Human serum albumin nanoparticles are a promising platform for biomedical applications. PEI-stabilized HSA nanoparticles can stimulate endogenous antioxidant defense mechanisms in lung epithelial cells. The developed nanocomposites demonstrate high biocompatibility and high antioxidant activity, making them suitable for drug and gene delivery applications in diseases with high oxidative stress.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2022)
Article
Chemistry, Physical
Nikolai G. Khlebtsov, Boris N. Khlebtsov, Elena V. Kryuchkova, Sergey V. Zarkov, Andrey M. Burov
Summary: This study demonstrates the universality of the UV-vis extinction method for measuring gold concentration in different forms and concentrations of gold nanoparticles. The study also provides a universal relationship between the extinction cross section and the particle or cluster volume, which can be applied in monitoring reduction or aggregation processes.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Biochemistry & Molecular Biology
Roman Tumskiy, Boris Khlebtsov, Anastasiia Tumskaia, Stella Evstigneeva, Evgeniya Antoshkina, Andrey Zakharevich, Nikolai G. Khlebtsov
Summary: This paper reports a simple synthesis of water-soluble glutathione-capped silver nanoclusters (GSH-Ag NCs), which showed enhanced antibacterial activity. The synthesized GSH-Ag NCs were found to be a pure composition without any impurities. The antibacterial activity of the chelated silver in the nanoclusters was significantly higher compared to free silver ions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Vladimir Kaydashev, Boris Khlebtsov, Maxim Kutepov, Anatoliy Nikolskiy, Alexey Kozakov, Alexey Konstantinov, Alexey Mikheykin, Gevork Karapetyan, Evgeni Kaidashev
Summary: Phase change metasurfaces based on VO2, pre-heated with electric current and optically addressed by structured light hologram, show potential in THz/middle IR flat optics. A new method is proposed to simultaneously probe the temperature and electric conductivity alteration of a hybrid Au particle-VO2 film composite using a YX128 degrees cut LiNbO3 substrate. Laser-induced photothermal effects are characterized in a macroscopic array of Au nanostars, and an insulator-metal transition assisted by photothermal effect in AuNSts/VO2/TiO2/LiNbO3 composites is studied. The proposed method is important for the characterization and optimization of metasurfaces and other devices for lab-on-chip and optical communication/processor technology.
Article
Chemistry, Multidisciplinary
Vitaly A. Khanadeev, Andrey V. Simonenko, Oleg V. Grishin, Nikolai G. Khlebtsov
Summary: Gold nanoparticles are widely used in laser biomedical applications due to their localized plasmon resonance. However, laser radiation can cause changes in particle morphology, leading to reduced photothermal and photodynamic efficiency. In this study, we examined the laser-induced photomodification of different types of gold nanoparticles, including nanostars, nanoantennas, nanorods, and nanoshells, in capillary flow. We developed a quantitative spectral approach to characterize the laser power photomodification threshold. The findings can be useful for optimizing plasmonic particles and laser irradiation parameters in biomedical applications.
Review
Chemistry, Analytical
Olga I. Guliy, Stella S. Evstigneeva, Vitaly A. Khanadeev, Lev A. Dykman
Summary: Viruses are common in the environment and can cause serious diseases in plants, animals, and humans. Due to the high risk of pathogenicity and constant mutation, there is a need for rapid virus detection methods. The demand for highly sensitive bioanalytical methods to diagnose and monitor socially significant viral diseases has increased, especially with the recent outbreak of the SARS-CoV-2 coronavirus. Phage display technology antibodies can be used as sensing elements for sensor-based virus detection, overcoming the limitations of current biomedical diagnostic methods.
Correction
Nanoscience & Nanotechnology
Boris N. Khlebtsov, Vitaly A. Khanadeev, Elizaveta V. Panfilova, Daniil N. Bratashov, Nikolai G. Khlebtsov
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Nikolai G. Khlebtsov, Lev A. Dykman, Boris N. Khlebtsov
Summary: Plasmonic particles are rapidly developing materials in nanotechnology, used for sensing, diagnosing, and treating in biomedicine. This review discusses the latest advances in the synthesis of popular nanoparticles such as gold nanospheres, nanorods, nanoshells, nanocages, and nanostars, as well as gold-silver nanorods and nanocuboids. The focus is on design principles of particle size, shape, and structure, for desired tuning of optical properties.
RUSSIAN CHEMICAL REVIEWS
(2022)
