Article
Chemistry, Multidisciplinary
Jeongwon Kim, Sungwoo Lee, Jiwoong Son, Jieun Kim, Hajir Hilal, Minsun Park, Insub Jung, Jwa-Min Nam, Sungho Park
Summary: Rational design of plasmonic colloidal assemblies via bottom-up synthesis is challenging but can demonstrate unprecedented optical properties that are strongly related to the shape and spatial arrangement of the assembly. In this study, plasmonic cyclic Au nanosphere hexamers (PCHs) were successfully synthesized and showed excellent performance in single-particle surface-enhanced Raman scattering signals.
Article
Chemistry, Multidisciplinary
Jean-Francois Bryche, Marlo Vega, Agnes Tempez, Thibault Brule, Thomas Carlier, Julien Moreau, Marc Chaigneau, Paul G. Charette, Michael Canva
Summary: This work demonstrates the enhancement in plasmonic sensing efficacy by spatially-localized functionalization on nanostructured surfaces, where probe molecules are concentrated in areas of high field concentration. SERS measurements on nanostructured surfaces with homogeneous and spatially-localized functionalization with thiophenol show that the Raman signal mainly originates from high field concentration areas. TERS measurements with 10 nm spatial resolution confirm the predicted field distribution profiles.
Article
Nanoscience & Nanotechnology
Napatsakorn Kamkrua, Thitaphat Ngernsutivorakul, Saksorn Limwichean, Pitak Eiamchai, Chanonthorn Chananonnawathorn, Viyapol Pattanasetthakul, Raffaele Ricco, Kiattawee Choowongkomon, Mati Horprathum, Noppadon Nuntawong, Tanujjal Bora, Raju Botta
Summary: In this study, a SERS-based aptasensor platform was developed for the sensitive and selective detection of the herbicide paraquat (PQ) by modifying gold (Au) nanoparticle SERS substrates with a thiol-containing aptamer. The aptamer-modified SERS substrates showed improved sensitivity and selective detection of PQ, with a limit of detection estimated to be 0.10 ± 0.03 μM. The developed aptasensor platform demonstrated good stability and selectivity against interferences from other similar herbicides and insecticides in natural water samples.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Jan Krajczewski, Robert Ambroziak, Sylwia Turczyniak-Surdacka, Malgorzata Dziubaltowska
Summary: In this study, WO3 nanopores array was obtained by utilizing an anodization method in aqueous solution with the addition of F- ions. Several factors affecting the morphology of the samples, such as potential, time, and F- concentrations, were tested. The optimal time range for the anodization process was found to be 0.5-1 h, and the size of the nanopores increased with increasing potential. The WO3-Au platform showed excellent SERS activity, and R6G molecules could be detected even at a concentration of 10(-9) M.
Article
Nanoscience & Nanotechnology
Stanislav O. Gurbatov, Evgeny Modin, Vladislav Puzikov, Pavel Tonkaev, Dmitriy Storozhenko, Aleksandr Sergeev, Neli Mintcheva, Shigeru Yamaguchi, Natalie N. Tarasenka, Andrey Chuvilin, Sergey Makarov, Sergei A. Kulinich, Aleksandr A. Kuchmizhak
Summary: The rational combination of plasmonic and all-dielectric concepts within hybrid nanomaterials provides a promising route toward devices with ultimate performance and extended modalities. Fabricated hybrids with amorphous TiO2 nanospheres decorated and doped with Au nanoclusters demonstrate remarkable light-absorbing properties in the visible and near-IR spectral range, and were utilized to demonstrate applications such as a catalytically passive SERS biosensor and a solar steam generator.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Chongning Li, Xue He, Hui Li, Yang Xiao, Xiaona Xu, Caina Jiang, Guiqing Wen, Zhiliang Jiang
Summary: A new covalent organic framework loaded gold nanocluster (AuCOF) with strong catalytic activity was prepared, which can catalyze the reduction of HAuCl4 to form gold nanoparticles (AuNP) with surface enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) effects. The aptamer of estradiol (E2) can adsorb on the AuCOF surface to suppress its catalytic performance, and desorb from the surface to recover the catalysis upon selective binding to E2.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Physical
Yerulan Sagidolda, Saule Yergaliyeva, Zhandos Tolepov, Guzal Ismailova, Bakytzhan Orynbay, Renata Nemkayeva, Oleg Prikhodko, Svetlana Peshaya, Suyumbika Maksimova, Nazim Guseinov, Yerzhan Mukhametkarimov
Summary: This study explores the structural properties of composite thin films consisting of oxide matrices and gold nanoparticles and their exhibit of localized surface plasmon resonance (LSPR) effects. Spectroscopic study, particularly Raman spectroscopy, reveals the unique features of these composite systems.
Article
Nanoscience & Nanotechnology
Wonil Nam, Junyeob Song, Seied Ali Safiabadi Tali, Henri J. Lezec, Amit Agrawal, Wei Zhou
Summary: The study introduces a tapered-shape nanolaminate plasmonic nanoantenna (TNLNA) platform that supports multiple, spatially overlapped, hybridized magnetoelectric localized surface plasmon modes, revealing high SERS EFs (>10(7)) and insensitivity to background RI variations (between 1.30 and 1.60). Additionally, it demonstrates that uniform arrays of TNLNAs can be manufactured on flexible transparent polymer films for backside-excitable and reversible SERS measurements, enabling in situ label-free glucose monitoring on a skin phantom.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Elena Zavyalova, Daria Tikhonova, Gleb Zhdanov, Elena Rudakova, Vera Alferova, Andrey Moiseenko, Polina Kamzeeva, Alexei Khrulev, Arthur Zalevsky, Alexander Arutyunyan, Roman Novikov, Vladimir Kukushkin, Andrey Aralov
Summary: Phosphorylated adenosine derivatives play important roles in the energetic balance of the cell, biosynthesis of cell components, and regulation of protein activity. Surface-enhanced Raman spectroscopy (SERS) is an optical method that can provide a unique spectrum of a substance at low concentrations. By using nucleic acid aptamers and Raman-active dyes, the specificity and limit of detection of SERS-based sensors can be significantly increased. In this study, a biosensor based on the AMP-dependent interaction between a DNA aptamer and a novel Raman-active dye was described, showing a low limit of detection and a wide dynamic range.
ANALYTICA CHIMICA ACTA
(2022)
Article
Biochemical Research Methods
Kessia Nattaly Oliveira dos Santos, Monica Benicia Mamian-Lopez
Summary: Optical sensors can detect various substances, from biological samples to hazardous substances. In this study, a colorimetric nanoantenna sensor using gold nanoparticles embedded in poly(vinyl alcohol) and decorated with a dye was constructed. The sensor demonstrated potential reusability and was used to visually detect H2O2 with a smartphone-based app. Chemometric modeling of the app data allowed for a detection limit of 0.0058% of H2O2 and visual observation of sensor changes, supporting the combination of nanoantenna sensors with chemometric tools for sensor design. This approach has the potential to enable visual detection and colorimetric quantification of analytes in complex samples.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Jeremy J. Baumberg
Summary: This article introduces the discovery and significance of sub-nanometer-scale optical cavities. We develop simple models for these picocavities and discuss what is known and unknown in this field, as well as the challenges faced in developing comprehensive theories. We also provide simple analytic expressions for key properties and discuss the importance of picocavities in various applications.
Article
Chemistry, Multidisciplinary
Yanjun Yang, Chunyuan Song, Jingjing Zhang, Jie Chao, Hoang Mai Luong, Yiping Zhao, Lianhui Wang
Summary: This article introduces a surface-enhanced Raman scattering (SERS) sensor based on a functionalized multiple-armed tetrahedral DNA nanostructure, which is capable of detecting multiple nucleic acid and protein biomarkers related to lung cancer and has enhanced sensitivity. The sensor achieves enhanced Raman signals through DNA self-assembled gold nanoparticle clusters in multiplex detections.
Review
Nanoscience & Nanotechnology
V. S. Vendamani, S. V. S. Nageswara Rao, Anand P. Pathak, Venugopal Rao Soma
Summary: This review provides a comprehensive overview of recent developments in nanosensors composed of plasmonic nanoparticles and silicon nanostructures for trace-level molecular detection. It discusses methodologies for preparing various SiNSs and their potential applications in molecular sensing, especially based on SERS phenomenon. Additionally, demonstrations and categorizations are provided for a clear understanding, along with a roadmap for achieving superior sensing materials in the future.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Applied
Peng Li, Baihui Wang, Mengyao Qi, Huan Jiang, Yifei Li, Xia Zhang
Summary: By including tobramycin in Au@Apts nanozymes, the tobramycin aptamer can be dislodged from the surface of Au NPs and the catalytic activity of nanozymes can be restored. The shift in enzyme activity can be detected using Raman spectroscopy of the enzyme-catalyzed product TMBox. This method has high sensitivity and wide application prospects.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Nanoscience & Nanotechnology
Stephen J. Bauman, Ahmad A. Darweesh, Miles Furr, Meredith Magee, Christos Argyropoulos, Joseph B. Herzog
Summary: This work demonstrates the successful use of gold nanosphere metasurfaces with tunable subnanometer gap widths for surface-enhanced Raman spectroscopy (SERS). The results show that the signal enhancement increases with decreasing gap width, but an enhancement quenching effect is observed below gaps of around 1 nm. This study highlights the potential of tunable sub-nanometer gap metasurfaces as a tool to investigate subnanometer scale effects at the interface between plasmonic nanostructures.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Cristina Mancarella, Maria Sygletou, Beatrice R. Bricchi, Francesco Bisio, Andrea Li Bassi
Summary: This paper investigates the combination of gold nanoparticles and tantalum-doped titanium dioxide films to control the modulation of plasmonic resonance. The study found that in a specific embedding geometry, the plasmonic resonance of gold nanoparticles is significantly blueshifted with increasing tantalum content. Despite the films' defects, Au-Ta:TiO2 nanocomposites show promise as highly tunable plasmonic conductive metamaterials for advanced light management.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Andrea Brognara, James P. Best, Philippe Djemia, Damien Faurie, Gerhard Dehm, Matteo Ghidelli
Summary: Thin film metallic glasses (TFMGs) are a novel class of materials with a combination of large plastic deformation in tension and superior yield strength. However, the relationship between atomic structure and mechanical properties has not yet been fully understood. This study investigates the mechanical properties and thermal stability of amorphous Zr100-xCux TFMGs with different nanostructures, and finds that composition and nanostructure play a significant role in determining hardness, plastic behavior, and fracture resistance.
MATERIALS & DESIGN
(2022)
Article
Energy & Fuels
Francesca Rossi, Emanuele Marini, Marco Boniardi, Andrea Casaroli, Andrea Li Bassi, Andrea Macrelli, Claudio Mele, Benedetto Bozzini
Summary: In this study, the degradation of two technologically representative types of manganese dioxide (α-MnO2 and γ-MnO2) under neutral and alkaline aqueous solutions containing Zn2+ is investigated using electrochemical measurements, microscopy, and Raman spectroscopy. The study provides a better understanding of the irreversible changes and phase formation processes that affect the functional performance of MnO2, as well as the restoration of the electroactivity of zinc-ion battery cathodes by adding Mn2+ to the neutral electrolyte.
Article
Materials Science, Multidisciplinary
Francesco Bignoli, Saqib Rashid, Edoardo Rossi, Sahar Jaddi, Philippe Djemia, Giancarlo Terraneo, Andrea Li Bassi, Hosni Idrissi, Thomas Pardoen, Marco Sebastiani, Matteo Ghidelli
Summary: Binary ZrCu nanocomposite amorphous films with different structures were synthesized by pulsed laser deposition under different pressure conditions. The thermal stability and crystallization temperature of the two structures were found to be different.
MATERIALS & DESIGN
(2022)
Article
Multidisciplinary Sciences
P. Marabotti, M. Tommasini, C. Castiglioni, P. Serafini, S. Peggiani, M. Tortora, B. Rossi, A. Li Bassi, V Russo, C. S. Casari
Summary: Authors utilized synchrotron-based UV resonance Raman spectroscopy to study intensity behavior of multiple phonons scattering in H-capped polyynes and demonstrated size-dependent electron-phonon coupling. By exciting each H-terminated polyyne to the maxima of its vibronic absorption spectrum, they could precisely determine electronic and vibrational structure of the ground and excited states for the main observed vibrational mode. The determined Huang-Rhys factors indicated a strong and size-dependent electron-phonon coupling increasing with the sp-carbon chain length.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Celeste Felion, Ricardo Lopez-Gonzalez, Alan L. Sewell, Rodolfo Marquez, Caroline Gauchotte-Lindsay
Summary: In this study, fluorescently labeled estrogens were developed as surrogates for studying biodegradation in environmental bacteria. The developed analytical methods allow for concurrent analysis of both fluorescent and natural estrogens. It was found that BODIPY-labeled estrogens are viable substitutes for investigating biodegradation processes.
Article
Electrochemistry
Andrea Macrelli, Marco Olivieri, Alessio Lamperti, Valeria Russo, Benedetto Bozzini, Marco Menegazzo, Gianlorenzo Bussetti, Carlo S. Casari, Andrea Li Bassi
Summary: In this study, nanostructured ZnMn2O4 thin films were synthesized using pulsed laser deposition (PLD), and the effects of deposition and annealing conditions on the film properties were evaluated using various characterization techniques. The study revealed the modulation of film porosity by oxygen pressure and the combined effect of deposition pressure and annealing temperature on tailored properties of the film. The influence of film porosity on the voltammetric behavior of the film at higher scan rate was also highlighted. The research confirmed the complex electrochemical mechanism of ZnMn2O4 material and paved the way for nanoscale design of engineered ZnMn2O4-based electrodes.
ELECTROCHIMICA ACTA
(2023)
Article
Biochemistry & Molecular Biology
Elisa Emanuele, Andrea Li Bassi, Andrea Macrelli, Claudio Mele, Jacopo Strada, Benedetto Bozzini
Summary: Among post-lithium ion battery technologies, rechargeable chemistries with Zn anodes are promising due to their high energy density, low cost, material availability, and safety. However, Zn anodes in aqueous electrolytes face challenges such as hydrogen evolution, passivation, and shape changes. Deep eutectic solvents (DESs) are green and low-cost non-aqueous solvents that can address these issues. This study investigates the electrochemistry of Zn in hydrated DESs and proposes an optimized electrolyte based on fundamental electrochemical data, morphology evaluation, and modeling of the cycling response.
Article
Materials Science, Multidisciplinary
Silvia Rotta Loria, Beatrice Roberta Bricchi, Andrea Schirato, Luca Mascaretti, Cristina Mancarella, Alberto Naldoni, Andrea Li Bassi, Giuseppe Della Valle, Margherita Zavelani-Rossi
Summary: Ultrafast plasmonics is gaining attention for exploring new plasmonic materials that overcome the limitations of noble metals. Titanium nitride (TiN) is particularly notable due to its refractory properties and extremely fast electron-lattice cooling time (<100 fs) compared to gold (approximately 1 ps). However, the exact explanation for the ultrafast and giant optical response of TiN-based materials under femtosecond laser excitation is still unknown.
ADVANCED OPTICAL MATERIALS
(2023)
Review
Nanoscience & Nanotechnology
Luca Mascaretti, Cristina Mancarella, Morteza Afshar, Stepan Kment, Andrea Li Bassi, Alberto Naldoni
Summary: This article reviews the use of titanium nitride (TiN) as an alternative material for integrated plasmonic devices. It discusses the methods of tuning its optical performance by adjusting process parameters, and explores the use of magnetron sputtering and pulsed laser deposition for fabricating TiN nanomaterials. The article also highlights the key advantages of these techniques in engineering nanostructures and enhancing the plasmonic performance of TiN.
Article
Physics, Multidisciplinary
Wafa Boukhemkhem, Mahmoud Izerrouken, Matteo Ghidelli, Thomas Pardoen, Ali Sari, Abdel Yazid Khereddine, Ali Meftah
Summary: Metallic glass films are potential coatings in the nuclear field, but their response to irradiation needs further research. Zr70Ni30 metallic glass films were irradiated by 0.71MeV/u(129)Xe(23+) ions, and changes in structure, morphology, and mechanical properties were studied. The irradiation increased surface smoothening and corrosion resistance. AFM data showed that the surface morphology evolution was due to a transition between viscous flow and evaporation-condensation mechanism. The amorphous structure remained unaffected after irradiation. Nanoindentation revealed softening initially, followed by a slight increase in hardness and Young's modulus. At a critical dose of 0.008 dpa, the hardness increased. The inelastic thermal spike model predicted a track with a radius of 7 nm.
Review
Crystallography
Francesco Tumino, Paolo D'Agosta, Valeria Russo, Andrea Li Bassi, Carlo Spartaco Casari
Summary: The research on molybdenum disulphide (MoS2) has made significant progress in the past decade due to its potential applications in future ultrathin optoelectronic devices. Raman spectroscopy has been widely used to characterize the structure of MoS2 films, but the effects of MoS2-metal interaction on its vibrational properties are still not fully understood. Studying this subject with experimental and theoretical methods is essential for understanding the interface physics of MoS2-metal systems and developing metal-assisted synthesis methods. This review summarizes the main findings of Raman spectroscopy studies on heterosystems between MoS2 and transition metals, providing a foundation and directions for future research.
Article
Engineering, Civil
Marta Vignola, Jeanine Lenselink, Dominic Quinn, Umer Zeeshan Ijaz, Ryan Pereira, William T. Sloan, Stephanie Connelly, Graeme Moore, Caroline Gauchotte-Lindsay, Cindy J. Smith
Summary: This study investigated the abilities of microbial communities from different parts of a biofilter to process DOM. The bottom community showed the highest growth rate on DOM and had a higher preference for complex DOM fractions. The higher relative abundance of the Curvibacter genus in the bottom community suggests its crucial role in degrading complex DOM fractions.
AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Paolo D'Agosta, Francesco Tumino, Valeria Russo, Andrea Li Bassi, Carlo S. Casari
Summary: In this work, the growth of WS2/MoS2 and MoS2/WS2 heterobilayers by pulsed laser deposition (PLD) under ultra-high vacuum conditions was studied. The heterobilayer morphology and structure at the nanoscale were investigated using in situ scanning tunneling microscopy. The experiments showed that the growth of the heterostructure can be controlled by tuning the number of laser pulses, achieving high coverage and thickness sensitivity. Raman spectroscopy revealed the effect of the interaction with the metallic substrate on the TMD vibrational properties and a strong interlayer coupling between the MoS2 and WS2 layers. The transfer of the heterobilayers onto a silica substrate confirmed that the interlayer coupling is not substrate-dependent. This work highlights the potential of PLD technique in growing TMD heterostructures and opens new perspectives in the synthesis of complex 2D layered materials.
