Article
Chemistry, Multidisciplinary
Youhui Zhou, Yao Cheng, Ju Xu, Hang Lin, Yuansheng Wang
Summary: Recent discoveries have uncovered the temperature-dependent upconversion luminescence behavior of inert-core/active-shell UCNPs, where both the sensitizer and activator are located near the nanoparticle surface, leading to a stronger luminescence thermal enhancement tendency compared to active-core UCNPs. This thermal enhancement behavior appears to be core-size dependent and is suggested to be attributed to the alleviation of surface quenching induced by lattice thermal expansion, based on the relationship between size-dependent luminescence and lattice expansion coefficient.
Article
Materials Science, Coatings & Films
Jinn P. Chu, Yi-Jui Yeh, Chih-Yu Liu, Yi-Xiang Yang, Alfreda Krisna Altama, Ting-Hao Chang, Wei-Hung Chiang, Pakman Yiu, Kuo-Lun Tung
Summary: In this study, highly ordered and periodic Ag/Au core-shell triangle nanotube arrays were used as an ultrasensitive and low-cost surface-enhanced Raman scattering (SERS) substrate for the first time. The Ag-core nanotubes overlaid with the Au-shell showed the highest Raman intensity and enhancement factor for the probe molecule R6G. The detection limits for R6G and ketoprofen analytes were determined to be 10(-10) and 10(-6) M, respectively. The metal nanotube arrays were found to act as effective plasmonic hotspots through Raman intensity mapping, making them useful for SERS sensing applications.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Analytical
Bing Liu, Shiya Zheng, Haitao Li, Junjie Xu, Hanyu Tang, Yi Wang, Yingchao Wang, Fei Sun, Xiangwei Zhao
Summary: The study presents a multiplex strategy based on magnetic nanoparticles and SERS nanotags for rapid and accurate detection of trace antibiotics, showing high sensitivity and multiplexing capabilities.
Article
Chemistry, Multidisciplinary
Gauravjyoti D. Kalita, Podma P. Sarmah, Golap Kalita, Pankaj Das
Summary: A facile ligand-assisted approach was used to synthesize bimetallic Au-Pd nanoparticles with a tunable core@shell structure. The Au-Pd materials exhibited superior performance in two important reactions, with the Pd-core-Au-shell structure showing higher activity compared to the Au-core-Pd-shell structure.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Zhixin Li, Fangcai Wu, Yulan Zeng, Yiwei Xu, Hongning Liu, Xinjia Wang, Fang Luo, Zhenyu Lin
Summary: This study developed electrochemiluminescence nanoprobes with a core-shell-shell structure and applied them for hyaluronidase detection. The nanoprobes efficiently precipitate through target-regulation wettability for collection and enrich near the hydrophobic electrode surface through hydrophobic interaction, enhancing the biosensor's performance.
CHEMICAL COMMUNICATIONS
(2023)
Article
Electrochemistry
Qingting Li, Wen Zeng, Yanqiong Li
Summary: In this study, a novel core-shell NiO spheres with a three-layer structure for gas sensor were reported. The gas sensors exhibited higher response, rapid response/recovery rate, and nice reproducibility. The formation of the core-shell structure was closely related to the reaction time.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Jihong Wang, Songlin Liu, Zhen Meng, Xiao Xia Han, Linjun Cai, Baofeng Xu, Rui Liu, Lina Song, Chengyan He, Ziyi Cheng, Bing Zhao
Summary: A SERS-based biosensor was developed using PVDF membranes as a flexible support for the sensitive detection of GADA and IAA in T1DM. Two types of silver-gold core-shell nanotags were synthesized and used to capture the targets, enabling highly sensitive and highly selective detection of GADA and IAA. The embedded Raman probes between silver and gold layers ensured spectral stability and reliability, and the utilization of two Raman probes allowed simultaneous and multiplexing detection of both GADA and IAA, improving the detection accuracy for T1DM.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Daniel Besold, Sebastian Risse, Yan Lu, Joachim Dzubiella, Matthias Ballauff
Summary: The kinetic study on the reduction of 4-nitrophenol with borohydride catalyzed by silver nanoparticles showed that the particles are immobilized deep inside a PNIPAM hydrogel shell. A kinetic model related to the analysis of the reaction catalyzed by gold was presented, with results fitting well and indicating the substantial influence of NH2 adsorption on the kinetics of silver. The study also revealed a non-Arrhenius dependency of the reaction rate at different temperatures, caused by the thermoresponsive PNIPAM hydrogel, and provided insights into the partitioning coefficients of reactants and products in PNIPAM-based catalysts.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Materials Science, Ceramics
Taoxin Qi, Lei Lei
Summary: The energy transfer processes in the BaYF5-based core/shell/shell nanoparticles are comprehensively manipulated, leading to a significantly improved upconversion intensity. These nanoparticles also show potential for selective sensing of rhodamine B.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Anna M. Mills, Joseph Strzalka, Andrea Bernat, Qinchun Rao, Daniel T. Hallinan
Summary: Magnetic-core/gold-shell nanoparticles (MAuNPs) are promising for fast and portable detection of trace adulterants. The gold shell provides biocompatibility and easy functionalization, while the magnetic core allows for analyte concentration and controlled deposition. MAuNPs grafted with both PEG and 4-MBA showed the best performance. The presence of 4-MBA slowed the deposition rate, indicating different NP-substrate interactions. These findings highlight the importance of ligand choice and functionalization in the design of sensing platforms.
Article
Chemistry, Analytical
Yanghong Shen, Yiyi Chen, Haifeng Wang, Xiuling Zhao, Haixia Lu, Junli Zhu
Summary: This study developed a technology that can simultaneously detect multiple mycotoxins in cereals, integrating a smartphone device with core-shell up-conversion nanoparticles. It has high sensitivity, high specificity, low cost, and portability.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yan Gong, Xiaofeng Wu, Xiaofei Li, Anqi Wang, Min Zhang, Yunfa Chen
Summary: Core-shell Pt@Al-doped ZnO nanoparticles were synthesized and assembled into a sensor, showing excellent sensitivity and low detection limit towards acetone. The synergistic effect between Al doping and metal-ZnO hetero-interfaces significantly improves the acetone sensing properties of the sensor.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Chuan-Wang Yang, Yi Hu, Li Yuan, Hong-Zhi Zhou, Guo-Ping Sheng
Summary: The study developed a CSNERS imaging method for tracking SiO2 nanoparticles in aquatic plants and demonstrated its potential applications in nanotoxicity research and biogeochemical study.
Article
Chemistry, Inorganic & Nuclear
Cong Cao, Guangshen Li, Yu Xie, Chang Hong, Yu Li
Summary: The article highlights the advantages of lanthanide doped nanoparticles in NIR-II imaging and proposes a potential new imaging probe. Experimental results have shown that the nanoparticles exhibit promising performance in in vivo imaging.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Viktor Sabadasch, Maxim Dirksen, Pascal Fandrich, Thomas Hellweg
Summary: This work presents core-shell microgels with tailor-made architecture and properties for the incorporation of palladium nanoparticles, resulting in enhanced catalytic activity and recyclability.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Oleksandra Veselska, Shefali Vaidya, Chinmoy Das, Nathalie Guillou, Pierre Bordet, Alexandra Fateeva, Francois Toche, Rodica Chiriac, Gilles Ledoux, Stefan Wuttke, Satoshi Horike, Aude Demessence
Summary: The Au-I-thiolate coordination polymer undergoes two successive phase changes under mild heating, with reversible transitions and distinct photoluminescent properties for each phase, which could pave the way for the next generation of PCRAM.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Bhagyesh Purohit, Erwann Jeanneau, Thibault Cornier, Gilles Ledoux, Shashank Mishra
Summary: This study reports new anhydrous precursors of barium and yttrium with good compatibility in co-thermal decomposition, filling the gap in precursors for Ba-based upconverting nanomaterials. These precursors provide a way to enhance the upconversion efficiency of nanocrystals by minimizing the -OH concentration without requiring a core-shell structure. The precursors and the BaYF5 nanocrystals co-doped with Yb3+/Tm3+ ions were characterized, and a mechanism for the energy transfer in the Yb-Tm system is proposed based on the preliminary results.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Oleksandra Veselska, Nathalie Guillou, Maria Diaz-Lopez, Pierre Bordet, Gilles Ledoux, Sebastien Lebegue, Adel Mesbah, Alexandra Fateeva, Aude Demessence
Summary: A series of d(10) coinage metal thiosalicylate coordination polymers (CPs) were reported, with 1D structures formed by M3S3 fused hexagons for Cu and Ag compounds and interpenetrated helical chains for Au CP. Depending on the metal, solid-state red and NIR emissive CPs were obtained with quantum yields up to 50%, providing a great opportunity to replace actual emissive critical raw materials.
Editorial Material
Optics
Gregory Barbillon
Article
Physics, Condensed Matter
Geraldine Dantelle, Valerie Reita, Alain Ibanez, Gilles Ledoux, Christophe Dujardin
Summary: YAG nanocrystals codoped with Nd3+ and Cr3+ ions were produced using a modified solvothermal method, and their properties were characterized through X-ray diffraction and photoluminescence measurements. Temperature-dependent luminescence spectra were analyzed based on different excitation wavelengths.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Physics, Applied
Andrey K. Sarychev, Andrey Ivanov, Andrey N. Lagarkov, Ilya Ryzhikov, Konstantin Afanasev, Igor Bykov, Gregory Barbillon, Nikita Bakholdin, Mikhail Mikhailov, Alexander Smyk, Alexander Shurygin, Alexander Shalygin
Summary: This study presents the design and fabrication of metal-dielectric metasurfaces, as well as their application in the excitation of plasmons and surface-enhanced Raman scattering. By utilizing the periodic arrangement of metal nanogratings on a dielectric substrate, an open plasmon resonator is formed, leading to the enhancement of the local electromagnetic field at optical frequencies.
PHYSICAL REVIEW APPLIED
(2022)
Article
Optics
Gregory Barbillon
Summary: This study presents a research on the sensing of chemical molecules using Au nanoparticles coated ZnO film by employing the photo-induced enhanced Raman scattering (PIERS) coupled to the surface-enhanced Raman scattering (SERS). The aim of coupling the PIERS to classical SERS is to achieve high sensitivity of detection. The detection of thiophenol showed a limit concentration of 100 pM, an adsorption capacity (K-Ads) of 3.2 x 10(6) M-1 and an analytical enhancement factor of 1.9 x 10(10).
Article
Multidisciplinary Sciences
Ahmad Abdallah, Shefali Vaidya, Saly Hawila, Sophie-Laure Ornis, Gregoire Nebois, Adrien Barnet, Nathalie Guillou, Alexandra Fateeva, Adel Mesbah, Gilles Ledoux, Antoine Berut, Loic Vanel, Aude Demessence
Summary: Three new coordination polymers (CPs) made of d(10) coinage metals and methyl thiosalicylate, [M(o-SPhCO2Me)](n) (M = Cu, Ag, Au), are reported. The CPs are constructed from one-dimensional metal-sulfur networks, with Cu and Ag being three-coordinated to sulfur atoms, and Au being two-coordinated. The Cu(I) and Ag(I) CPs show orange photoemission at room temperature, while the Au(I) CP exhibits near-infrared emission at low temperatures. Furthermore, a dual luminescent flexible composite film is formed by mixing the intense orange-emissive Ag(I) CP and the blue-emissive coumarin 120 in an organic matrix, polyvinylidene fluoride (PVDF), which shows great sensitivity for temperatures up to 100 degrees C, surpassing non-lanthanide-based CPs.
Article
Nanoscience & Nanotechnology
Bhagyesh Purohit, Erwann Jeanneau, Yannick Guyot, David Amans, Benoit Mahler, Marie -France Joubert, Christophe Dujardin, Gilles Ledoux, Shashank Mishra
Summary: An optimized synthesis of small but highly emitting upconverting nanoparticles (UCNPs) without any surface passivation layers is reported. The high quality of these UCNPs is comparable to that of bulk single crystals in terms of upconversion efficiency.
ACS APPLIED NANO MATERIALS
(2023)
Review
Physics, Applied
Alemayehu Nana Koya, Marco Romanelli, Joel Kuttruff, Nils Henriksson, Andrei Stefancu, Gustavo Grinblat, Aitor De Andres, Fritz Schnur, Mirko Vanzan, Margherita Marsili, Mahfujur Rahaman, Alba Viejo Rodriguez, Tlek Tapani, Haifeng Lin, Bereket Dalga Dana, Jingquan Lin, Gregory Barbillon, Remo Proietti Zaccaria, Daniele Brida, Deep Jariwala, Laszlo Veisz, Emiliano Cortes, Stefano Corni, Denis Garoli, Nicolo Maccaferri
Summary: In the past twenty years, significant progress has been made in understanding light-driven phenomena in nanoscale systems, while exploring the temporal dynamics of excited states remains a challenge. Ultrafast plasmonics, which focuses on tailoring and controlling optical and electronic processes at the nanoscale, offers great potential for applications such as optical switching and photochemical reactions. This review provides an overview of the field, discussing methodologies for monitoring and controlling nanoscale phenomena with plasmons, and highlighting recent advances in plasmon-driven chemistry and multifunctional plasmonics.
APPLIED PHYSICS REVIEWS
(2023)
Article
Chemistry, Physical
Gregory Barbillon
Summary: This study investigates the Fermi level shifts of gold nanospheres on zinc oxide (ZnO) film upon UV irradiation. The shifts are obtained by recording the extinction spectra of gold nanospheres and are attributed to the additional electrons stored in the nanospheres from ZnO film. The blueshift of plasmon resonance of the Au nanospheres indicates the transfer of electrons from ZnO film to Au nanospheres upon UV irradiation. The Fermi level shifts vary with UV irradiation time and can be estimated by a model based on the electronic structure of a semiconductor.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Physics, Condensed Matter
Khawla Mili, Zouhour Hsine, Yves Chevalier, Gilles Ledoux, Rym Mlika
Summary: A new rapid and sensitive fluorescence probe based on zinc sulfide quantum dots (QDs) has been developed for the detection of tetracycline (TCy). The QDs were prepared via a simple aqueous colloidal method and characterized by various spectroscopic techniques. The probe showed a linear relationship between fluorescence intensity and TCy concentration over a wide range, with a low limit of detection.
SOLID STATE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Andrey K. Sarychev, Gregory Barbillon, Andrey Ivanov
Summary: This study presents generic, analytical equations for the localized plasmons in a narrow gap between a metal/dielectric cylinder and a metal surface. The electric field distribution in the nanogap is obtained using the quasi-static approximation. The maximum electric field is achieved when the incident light is in resonance with the plasmon mode in the gap, and can be significantly enhanced. The analytical model results are in good agreement with a known theoretical model and experimental results of surface-enhanced Raman scattering (SERS). The narrow gap resonator appears to be a powerful and flexible tool for various spectroscopies such as SERS and infrared absorption.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Theotim Lucas, Clement Linger, Thomas Naillon, Mahshid Hashemkhani, Lise Abiven, Bruno Viana, Corinne Chaneac, Gautier Laurent, Rana Bazzi, Stephane Roux, Sonia Becharef, Giulio Avveduto, Florence Gazeau, Jerome Gateau
Summary: Photoacoustic spectroscopy provides a precise and robust method of analyzing the photothermal capabilities of nanoagents in aqueous solutions, without the need for models.
Article
Chemistry, Multidisciplinary
Saly Hawila, Ahmad Abdallah, Jean-Luc Rukemampunzi, Alexandra Fateeva, Gilles Ledoux, Regis Debord, Stephane Paihles, Nathalie Guillou, Florian Massuyeau, Romain Gautier, Adel Mesbah, Aude Demessence
Summary: A new tridimensional metal-organic chalcogenolate, [Ag-2(1,3-BDT)](n), containing a 1,3-benzenedithiolate bridging ligand and Ag(i), is reported. This coordination polymer exhibits good thermal stability in air and shows photoluminescence properties as well as a second harmonic generation response.
CHEMICAL COMMUNICATIONS
(2022)