Article
Materials Science, Multidisciplinary
Chandan Singh, Matthias Thiele, Andre Dathe, Sophie Thamm, Thomas Henkel, Gajjala Sumana, Wolfgang Fritzsche, Andrea Csaki
Summary: A two-step process involving extraction and exchange reactions was used to immobilize gold nanocubes on a glass surface, resulting in improved sensitivity for microfluidic sensing of glucose concentrations.
Review
Biotechnology & Applied Microbiology
Mitchell Lee Taylor, Raymond Edward Wilson, Kristopher Daniel Amrhein, Xiaohua Huang
Summary: Noble metal nanoparticles, especially gold nanorods, have been widely used in cancer photothermal therapy due to their unique optical properties and long blood circulation half-life. This review summarizes the optical properties of gold nanorods and their applications in photothermal therapy, as well as recent strategies to improve the therapy through combination with chemotherapy and photodynamic therapy.
BIOENGINEERING-BASEL
(2022)
Review
Chemistry, Analytical
Cristina-Virginia Topor, Mihaela Puiu, Camelia Bala
Summary: Surface plasmon resonance (SPR) is a surface-sensitive technique that enables trace and ultra-trace detection of various analytes through affinity pairing. Despite its label-free, sensitive detection and real-time monitoring capabilities, challenges such as poor stability, non-specific adsorption, and loss of biomolecular activity need to be addressed. This review discusses progress in sensor modification, immobilization techniques, and the use of novel 2D nanomaterials, gold nanostructures, and magnetic nanoparticles for signal amplification. The advantages and disadvantages of each design strategy are provided, along with recent achievements.
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.
Review
Chemistry, Multidisciplinary
Earl Adrian D. R. Hans, Michelle D. Regulacio
Summary: Coupling Au and Cu2-xS on the nanoscale results in dual plasmonic Au-Cu2-xS nanocomposites with intense photon absorption and superior photothermal transduction efficiency, making them attractive for photothermal-based applications. Potential nanostructure configurations include heterodimer, core-shell, reverse core-shell, and yolk-shell arrangements, with different synthetic approaches presented in this Minireview. The photothermal behavior of these materials hints at their use as photothermally active agents in therapeutic applications.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Inorganic & Nuclear
Kimia Kermanshahian, Abbas Yadegar, Hedayatollah Ghourchian
Summary: Localized surface plasmon resonance (LSPR) is an optical phenomenon generated by conductive nanoparticles, applied as a label-free sensing technique with superior sensitivity based on the nanoparticle size, shape, and structure; Gold nanorods (AuNRs) etched into small nanoparticles serve as a powerful tool for fabricating various chemo-/bio-sensors, exhibiting unique optical properties resulting from LSPR excitation across visible to near-infrared range.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Biochemical Research Methods
Gennadii Beketov, Olena Shynkarenko, Mariia Apatska
Summary: This study explores the application of surface plasmon resonance in evaluating polystyrene modification efficiency to enhance biomolecule adsorption. It facilitates the development of advanced immobilization strategies for biofunctionalization of the polystyrene surface. Using a thin layer of polystyrene over the SPR chip surface allows for a detailed characterization of biomolecular interactions at the polystyrene surface.
ANALYTICAL BIOCHEMISTRY
(2021)
Review
Biochemical Research Methods
Maria Soler, Laura M. Lechuga
Summary: Label-free biosensors based on optical transducers offer potential alternatives for rapid and highly sensitive clinical diagnostics, but face challenges in standardizing sensor biofunctionalization protocols. Innovative strategies and research directions are crucial for enhancing the applicability and reliability of optical biosensors in clinics and biomedicine.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Li Zhang, Yuhan Li, Qin Li, Jiajie Fan, Sonia A. C. Carabineiro, Kangle Lv
Summary: This review summarizes the methods and strategies for modifying Bi-based photocatalysts, including defect regulation, exposed facet control, etc. It focuses on the application and reaction mechanisms of BiOCl photocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biophysics
Tianping Xu, Zhaoxin Geng
Summary: Due to the lower sensitivity of LSPR biosensors compared to other sensors, researchers have explored various methods to improve performance, including structural, material, and interface modifications. These efforts are expected to expand the applications of LSPR biosensing technology.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Optics
Haiwei Mu, Xinchen Xu, Jingwei Lv, Chao Liu, Wei Liu, Lin Yang, Jianxin Wang, Qiang Liu, Yan Lv, Paul K. Chu
Summary: This study introduces a method that combines the plasmon mode of metal nanoantennas with the anapole mode of high refractive index dielectric materials to increase the electric field strength and minimize energy loss. Through numerical simulation and multipole decomposition analysis, the near-field enhancement features and distributions of the electric field are explored using a silicon disk with slots and two Au rings with a coupling mechanism. By generating high-intensity hot spots inside the disk, the electric field can be significantly enhanced, allowing nearby molecules to directly interact with these hot spots, suggesting significant applications in strong photon-exciton coupling and nonlinear photonics.
Article
Chemistry, Physical
Yunshan Fan, Yara Aceta, Esther Hessong, Athena Bengston, Laris A. Biageyian, Quan P. Huynh, Robert M. Corn
Summary: Diffraction patterns observed in SPRI microscopy measurements of single gold nanorods exhibit complex behavior near the longitudinal plasmonic resonance band, with a unitless ratio parameter M-R created to describe the diffraction pattern distribution. Results show that this behavior only occurs in the anomalous dispersion region, when the laser wavelength used is shorter than the AuNR plasmonic resonance maxima.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Daniela Melanie Delannoy Lopez, Dong Tien Tran, Guillaume Viault, Sofiane Dairi, Philippe Alexandre Peixoto, Yoan Capello, Laetitia Minder, Laurent Pouysegu, Elisabeth Genot, Carmelo Di Primo, Denis Deffieux, Stephane Quideau
Summary: The study chemically modified bioactive polyphenols for immobilization on sensor chips and used surface plasmon resonance to assess their interactions with various protein analytes, revealing differences in binding between different polyphenolic ligands and protein analytes. The multi-analysis SPR technique proved valuable for rapid screening and qualitative comparison of polyphenol-protein interactions.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Analytical
Eliza K. Hanson, Chien-Wei Wang, Lisa Minkoff, Rebecca J. Whelan
Summary: Surface plasmon resonance (SPR) is a popular technique for real-time measurement of binding affinity and kinetics. However, the use of Ni-NTA immobilization can lead to signal variability. This study aims to identify the factors contributing to this variability and suggests ways to control for them, improving the reproducibility and rigor of the data.
Article
Food Science & Technology
Mert Sudagidan, Veli Cengiz Ozalp, Orhan Ozturk, Mediha Nur Zafer Yurt, Orhan Yavuz, Behiye Busra Tasbasi, Samet Ucak, Zehra Seda Mavili, Aysen Coban, Ali Aydin
Summary: The study aimed to evaluate the biofilm-forming and virulence properties of L. monocytogenes strains isolated from fish processing surfaces and smoked salmons. The results showed resistance to disinfectants and antimicrobials.
Review
Chemistry, Multidisciplinary
Lu Wang, Morteza Hasanzadeh Kafshgari, Michel Meunier
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Yingying Jiang, Lu Wang, Michel Meunier, Utkur Mirsaidov
Summary: Porous alloy nanomaterials are important for various applications, and the evolution of individual AuAg alloy NPs during chemical and electrochemical etching processes is tracked using in situ liquid phase transmission electron microscopy. The electrochemical etching method produces NPs with more uniform pore sizes and allows for tuning the NPs porosity by modulating the electrochemical potential. The formation of an Au-rich passivation layer on the surface of NPs at initial stages of etching is critical in preserving the NP's porous shell as pores form underneath this layer during the etching process.
Article
Chemistry, Multidisciplinary
Morteza Hasanzadeh Kafshgari, Leonidas Agiotis, Isabelle Largilliere, Sergiy Patskovsky, Michel Meunier
Summary: The study proposes a plasmonic optoporation approach to efficiently and selectively transfect specific cells with RNA therapeutics, showing promising prospects for future clinical applications. Numerical simulations suggest that optoporation is not plasma-mediated but rather caused by a highly localized temperature rise in time and space.
Article
Multidisciplinary Sciences
Leonidas Agiotis, Michel Meunier
Summary: Researchers used a power limiting device to assess the ultrafast optical nonlinearities of transparent liquids in femtosecond filamentation, revealing a unique optical response. They also investigated the optical transmission characteristics of the power limiter and the conditions for determining the critical power for self-focusing.
SCIENTIFIC REPORTS
(2021)
Article
Oncology
Paule Marcoux-Valiquette, Cecile Darviot, Lu Wang, Andree-Anne Grosset, Morteza Hasanzadeh Kafshgari, Mirela Birela, Sergiy Patskovsky, Dominique Trudel, Michel Meunier
Summary: Improving the reliability and precision of traditional cytopathological examination protocols remains a persistent challenge. This study introduces a complementary bioimaging approach based on plasmonic nanoparticles, which provides ancillary diagnostic information while resisting interference from cytological counterstaining. The integration of this state-of-the-art bioimaging approach with traditional cytopathology strategies enhances cancer diagnosis and daily care.
Article
Optics
Leonidas Agiotis, Michel Meunier
Summary: In this study, the threshold power for self-focusing in gold nanorod colloids of varying concentration was evaluated using a power limiting method in the femtosecond filamentation regime. It was found that tuning the pulses near the longitudinal plasmon peak of the nanorods leads to saturation of linear absorption and reshaping of the particles. Numerical simulations revealed a subtle, monotonically increasing enhancement of the nonlinear refractive index of the host material (water) as the nanoparticles concentration increases.
Correction
Chemistry, Multidisciplinary
Lu Wang, Sergiy Patskovsky, Bastien Gauthier-Soumis, Michel Meunier
Article
Chemistry, Multidisciplinary
Lu Wang, Sergiy Patskovsky, Bastien Gauthier-Soumis, Michel Meunier
Summary: Plasmonic nanostructures, such as porous Au-Ag alloy nanoparticles, have shown great potential in enhancing Raman signals and producing sensitive SERS probes. By controlling the ratio of Au/Ag in alloy NPs and the degree of dealloying during the reaction, these nanostructures exhibit redshifted plasmon peaks, large accessible surfaces, and highly enhanced Raman signals up to 68-fold higher than traditional AuNPs, making them promising for highly sensitive SERS probes.
Article
Nanoscience & Nanotechnology
Leonidas Agiotis, Michel Meunier
Summary: This article reports on experimental observations of phenomenological self-trapping in plasmonic colloids. It is found that the nonlinear propagation of colloids is governed by thermal defocusing of the focused beam, even far from the plasmon resonance. The article discusses a strategy for using high repetition femtosecond pulses to mitigate thermal lensing and promote self-trapping.
Review
Optics
Leonidas Agiotis, Michel Meunier
Summary: The nonlinear response of plasmonic nanocomposites is limited by strong absorption and saturation effects, despite the enhancement of localized electronic field at the nanoscale. However, configurable properties of the nonlinear response have been utilized for the development of novel processes in nonlinear wave propagation.
LASER & PHOTONICS REVIEWS
(2022)
Meeting Abstract
Ophthalmology
Jennyfer Zapata, Alexandre Abid, Mohamed Djallali, Marilyse Piche, Michel Meunier, Christos Boutopoulos, Isabelle Brunette
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2022)
Proceedings Paper
Engineering, Biomedical
Duc Hoa Tran, Michel Meunier, Farida Cheriet
42ND ANNUAL INTERNATIONAL CONFERENCES OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY: ENABLING INNOVATIVE TECHNOLOGIES FOR GLOBAL HEALTHCARE EMBC'20
(2020)
Article
Food Science & Technology
Sandra Beauchet, Veronique Cariou, Christel Renaud-Gentie, Michel Meunier, Rene Siret, Marie Thiollet-Scholtus, Frederique Jourjon
Article
Nanoscience & Nanotechnology
Audrey Nsamela Matombi, Morteza Hasanzadeh Kafshgari, Lu Wang, Sergiy Patskovsky, Dominique Trudel, Michel Meunier
ACS APPLIED NANO MATERIALS
(2020)
Article
Chemistry, Analytical
Sergiy Patskovsky, Mengjiao Qi, Michel Meunier
