Article
Chemistry, Physical
Shengsen Zhang, Shengjie Chen, Kunru Yu, Rong Zhu
Summary: This study proposes a novel nanofabrication approach to construct morphology-controlled gold nanostructures for high-performance sensing and energy harvesting. The gold nanostructures are synthesized through electric field-assisted hydrothermal growth and two-step gold electroplating, and their morphology can be controlled by regulating electroplating parameters. The synthesized gold nanostructures exhibit enhanced electrochemical sensing, surface-enhanced Raman scattering, and visible-near-infrared light harvesting. For the first time, the study demonstrates the application of tumor cell photothermal therapy with nanostructured electrodes and in situ bimodal monitoring of single-cell electrophysiology and molecular expression.
Article
Chemistry, Analytical
W. Cheuquepan, S. Hernandez, M. Perez-Estebanez, L. Romay, A. Heras, A. Colina
Summary: Electrochemistry can be used to generate SERS substrates, utilizing the plasmonic properties of nanos-tructures and the chemical mechanism, with time-resolved Raman spectroelectrochemistry providing valuable information. Comparing Au and Ag metals for folic acid detection in drugs, it was found that Ag SERS substrates outperformed Au SERS substrates in complex samples.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Physical
Chen Li, Si Li, Aihua Qu, Chuanlai Xu, Liguang Xu, Hua Kuang
Summary: This review discusses the effects of nanomaterial-based SERS spectral profiling on miRNA, categorizing these SERS-active nanostructures into different dimensional categories based on their unique structures, and highlighting the differences in detection performance attributed to the materials and design of the nanostructures.
Article
Chemistry, Multidisciplinary
Xudong Peng, Mengmeng Zhang, Feng Xue, Aodi Zhang, Yue Xu, Yi Huang, Hong Wang, Hongyu Chen
Summary: Salt-induced aggregation is a convenient method for obtaining chains of small Au nanoparticles (<15 nm), but often leads to branched and globular aggregates as by-products. By investigating the mechanism and designing reaction conditions, we found that modulating ligand concentration and solvent polarity are more effective for precise chain aggregation, consistent with DLVO theory. Our method can be applied to noble metal nanoparticles of various sizes with different ligands, including SERS-active ones, producing chain aggregates with low error ratio (around 4%).
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Analytical
Dan Liu, Haibin Tang, Yupeng Yuan, Chuhong Zhu
Summary: Surface-enhanced Raman scattering (SERS) spectroscopy provides sensitive rapid detection of molecules. A simple and effective method using seed-assisted electrodeposition is developed for fabricating a 3D SERS substrate composed of multilayer Au nanoparticles. The resulting multilayer Au nanoparticles-assembled film shows high SERS sensitivity, good spectral uniformity, and reproducibility, with a low detection limit for rhodamine 6G. Moreover, it is also effective in detecting organic pollutants such as crystal violet and methylene blue.
MICROCHEMICAL JOURNAL
(2023)
Article
Electrochemistry
Sheila Hernandez, Juan Perales-Rondon, Aranzazu Heras, Alvaro Colina
Summary: EC-SOERS is a new phenomenon that enhances the Raman signal during the oxidation of a metal surface. Studies show that carbonyl and carboxyl groups are necessary to observe this phenomenon, with a delocated charge being important factor. Evaluating the enhancement factors for different molecules with highly delocated charge and a carboxyl group sheds more light on the interaction of molecules with the electrochemically generated SOERS substrates.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Haomin Guan, Zheng Tian, Qinghong Kong, Guangcheng Xi
Summary: By synthesizing rough VO2(D) nanostars and nanospheres with highly dense and rough surfaces, highly sensitive Raman spectrum substrates can be prepared with a detection limit as low as 10^(-9) M for Rhodamine 6G.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Biochemistry & Molecular Biology
Saltanat B. Ikramova, Zhandos N. Utegulov, Kadyrjan K. Dikhanbayev, Abduzhappar E. Gaipov, Renata R. Nemkayeva, Valery G. Yakunin, Vladimir P. Savinov, Victor Yu Timoshenko
Summary: This study explored the use of silicon nanowires (SiNWs) combined with gold nanoparticles (Au NPs) for surface-enhanced Raman scattering (SERS) of probe molecules. The research found that the filling factor of SiNW arrays controlled the SERS efficiency, with the highest enhancement observed for samples with a porosity of 55%. The results demonstrate the electromagnetic enhancement of SERS through localized surface plasmon resonances in Au-NPs on SiNW surfaces, accompanied by light scattering in the SiNW arrays.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Junxiang Xiang, Yunxia Wang, Yupeng Wu, Qi Peng, Langquan Shui, Wengen Ouyang, Tao Ding, Ze Liu
Summary: A cost-effective approach for fabricating highly ordered metallic pillar arrays in centimeter scale has been developed using superplastic nanomolding and anodic aluminum oxide templates. This method enables surface-enhanced Raman scattering with an enhancement factor of approximately 10^6 and provides guidance for quantitative analysis on the sub-micrometer scale.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Chuhong Zhu, Qiangsheng Zhao, Dexian Huo, Xiaoye Hu, Xiujuan Wang
Summary: This study reports a simple electrodeposition strategy for the fabrication of highly surface-roughened gold nanostructure arrays, which exhibit improved SERS intensity with high uniformity. The fabricated thorny gold nanostructure arrays show high SERS sensitivity and detection limits for rhodamine 6G and ferbam, with promising applications in molecular detection. Calibration curves achieved using the fabricated rough gold nanoarrays demonstrate potential for semi-quantitative or quantitative detection. This work offers a facile and effective approach for the rational design of uniform, reproducible, and sensitive SERS substrates.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Shi Xuan Leong, Charlynn Sher Lin Koh, Howard Yi Fan Sim, Yih Hong Lee, Xuemei Han, Gia Chuong Phan-Quang, Xing Yi Ling
Summary: The study successfully achieves direct, label-free SERS sensing of biologically important enantiomers by synergizing asymmetric nanoporous gold (NPG) nanoparticles with electrochemical-SERS. This strategy is versatile and can be readily extended to detect various enantiomers, and allows for multiplex quantification of enantiomeric ratios with excellent predictive performance. The research offers a paradigm shift in achieving label-free chiral SERS sensing of various enantiomers.
Article
Chemistry, Physical
Jamal Aziz, Naila Nasir, Ehsan Elahi, Awais Ali, Shahid Mehmood, Honggyun Kim, Deok-kee Kim, Arshad Saleem Bhatti
Summary: Metal/semiconductor nanocomposites have the potential to tune the optical and electrical properties of semiconductors at the nanometer scale. The resonant excitation of surface plasmons of metal nanoparticles can couple with semiconductors and tune their optical emissions. This study thoroughly examines the coupling of surface plasmons and excitons using temperature dependent photoluminescence and Raman spectroscopy in Au-NPs coated ZnO nanowires. The results demonstrate the potential applications of Au/ZnO composites in plasmonic based nanoelectronics for memory and neuromorphic applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Sejung Kim, Stephen Palani, Fehmi Civitci, Xiaolin Nan, Stuart Ibsen
Summary: This study presents a simple synthetic method to produce gold or gold-silver bimetallic mesostructures with multiple sharpened tips using carbon quantum dots. The morphology of these nanoparticles can be controlled by adjusting the concentration of carbon quantum dots, reaction temperatures, and seed particles. The bimetallic mesostructures exhibit the highest sensitivity and are suitable for surface-enhanced Raman scattering-based chemical sensing applications.
Article
Chemistry, Multidisciplinary
Ling Zhang, Zhiyu Jing, Zhexiao Li, Takeshi Fujita
Summary: By controlling electrochemical dealloying, we modified the ligament surface of nanoporous gold (NPG) to improve its surface-enhanced Raman scattering (SERS) property. The presence of high-density atomic steps and kinks on the curved surfaces, as well as high-content silver atoms close to the ligament surface, contributed to the high SERS ability. This strategy is important for the fabrication of nanoporous metals with excellent surface properties for sensing, conversion, and catalysis.
Article
Chemistry, Physical
Yu. V. Fedoseeva, L. G. Bulusheva, V. O. Koroteev, J. -Y. Mevellec, B. V. Senkovskiy, E. Flahaut, A. V. Okotrub
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Physical
Angelina D'Orlando, Jean-Yves Mevellec, Guy Louarn, Bernard Humbert
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Materials Science, Multidisciplinary
L. G. Bulusheva, E. Lobiak, Yu Fedoseeva, J-Y Mevellec, A. A. Makarova, E. Flahaut, A. Okotrub
Article
Chemistry, Inorganic & Nuclear
Raquel Utrera-Melero, Brendan Huitorel, Marie Cordier, Jean-Yves Mevellec, Florian Massuyeau, Camille Latouche, Charlotte Martineau-Corcos, Sandrine Perruchas
INORGANIC CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Emmanuel Picheau, Anthony Impellizzeri, Dmitry Rybkovskiy, Maxime Bayle, Jean-Yves Mevellec, Ferdinand Hof, Hassan Saadaoui, Laure Noe, Abraao Cefas Torres Dias, Jean-Luc Duvail, Marc Monthioux, Bernard Humbert, Pascal Puech, Christopher P. Ewels, Alain Penicaue
Summary: Above a critical diameter, carbon nanotubes collapse into flattened forms, leading to unique Raman spectra changes. The presence of edge cavities and curvature changes near the edges activate a D band despite overall continuity in the structure. The differing perspectives of chemists and physicists on defects in carbon structures may lead to confusion for researchers in nanotechnologies.
Article
Chemistry, Inorganic & Nuclear
Eric Quarez, Eric Gautron, Michael Paris, David Gajan, Jean-Yves Mevellec
Summary: The KSBO material shows an uncommon symmetry increase during cooling, forming unique B2O6 units. Through various techniques, the existence of these B2O6 units was confirmed.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Thomas Marchandier, Sathiya Mariyappan, Artem M. Abakumov, Stephane Jobic, Bernard Humbert, Jean-Yves Mevellec, Gwenaelle Rousse, Maxim Avdeev, Remi Dedryvere, Dominique Foix, Antonella Iadecola, Marie-Liesse Doublet, Jean-Marie Tarascon
Summary: Researchers chemically designed two new LixIrS2 polymorphs to investigate the mechanisms of ligand redox processes in lithium-ion batteries, finding that the electrochemical processes involved different sulfur redox couples. These insights into the structural and anionic redox systems hysteresis origins can guide the design of new practical electrode materials.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Analytical
Mouad Essani, Jean-Yves Mevellec, Baptiste Charbonnier, Philippe Moreau, Hilel Moussi, Pierre Weiss, Jean Le Bideau, Maxime Bayle, Bernard Humbert, Patricia Abellan
Summary: The development of instruments combining multiple characterization and imaging tools has driven advancements in material science, engineering, biology, and other related fields. This study reports the use of a cryo-FIB-SEM-mu Raman instrument to assess the accuracy of cryo-fixation methods for studying vitreous materials with high water content, providing a reliable approach to avoid imaging artifacts.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Lucas Gournay, Ievgeniia Chaban, Jean-Yves Mevellec, Bernard Humbert, Etienne Janod, Laurent Guerin, Marco Cammarata, Nathalie Daro, Guillaume Chastanet, Eric Collet
Summary: The Light-Induced Excited Spin-State Trapping (LIESST) process allows for tuning the electronic state of spin crossover materials. We investigated the effect of light irradiance on the LS -> HS up-conversion and HS -> LS thermal relaxation in the [Fe(phen)(2)(NCS)(2)] system. Raman spectroscopy and magnetic measurements were used to analyze this phenomenon. An empiric model explains the competition between up conversion and thermal relaxation mechanisms.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Manon Dupleichs, Maxence Limelette, Charlotte Mellier, Valerie Montouillout, Francois-Xavier Lefevre, Sophie Quillard, Jean-Yves Mevellec, Pascal Janvier
Summary: This study proposes the synthesis of injectable calcium phosphate cement (CPC) loaded with gallium maltolate (GaM). The results demonstrate that the addition of GaM does not modify the composition and textural properties of the cement, and allows for a controlled release of GaM.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Geochemistry & Geophysics
Stefanos Karampelas, Ugo Hennebois, Jean-Yves Mevellec, Vincent Pardieu, Aurelien Delaunay, Emmanuel Fritsch
Summary: This study analyzes zircon inclusions in pink to purple sapphires from Ilakaka, Madagascar using an optical microscope, FTIR, and micro-Raman spectroscopy to update knowledge and differentiate heated and unheated samples. The FWHM of the main Raman band of zircon is measured, ranging from 6.26 to 21.73 cm(-1) in unheated samples and 4.83 to 14.97 cm(-1) in heated samples. The study provides insights into accurately identifying low-temperature heat treatment in pink sapphires from Ilakaka.
Article
Materials Science, Multidisciplinary
Raquel Utrera-Melero, Brendan Huitorel, Marie Cordier, Florian Massuyeau, Jean-Yves Mevellec, Nicolas Stephant, Philippe Deniard, Camille Latouche, Charlotte Martineau-Corcos, Sandrine Perruchas
Summary: This article presents an original mechanochromic luminescent copper iodide cluster and its application in the synthesis of mechanically responsive films. The mechanochromic mechanism is attributed to the structural changes of the molecular cluster at defects created locally in the crystalline structure, leading to intense room temperature emission in response to mechanical forces. The mechanically responsive films based on the studied cluster exhibit high contrasted luminescence mechanochromic properties with writing and erasing activating and deactivating the emission of the photoactive component.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Adrien Chauvin, Marta Lafuente, Jean Yves Mevellec, Reyes Mallada, Bernard Humbert, Maria Pilar Pina, Pierre-Yves Tessier, Abdelaziz El Mel
Article
Materials Science, Multidisciplinary
Celine Mariette, Elzbieta Trzop, Jean-Yves Mevellec, Abdou Boucekkine, Aziz Ghoufi, Guillaume Maurin, Eric Collet, M. Carmen Munoz, Jose Antonio Real, Bertrand Toudic
Article
Chemistry, Inorganic & Nuclear
Brendan Huitorel, Raquel Utrera-Melero, Florian Massuyeau, Jean-Yves Mevelec, Benoit Baptiste, Alain Polian, Thierry Gacoin, Charlotte Martineau-Corcos, Sandrine Perruchas
DALTON TRANSACTIONS
(2019)