Article
Materials Science, Multidisciplinary
Omar G. Morales-Saavedra, Elizabeth Chavira, Antonio A. Rodriguez-Rosales, Jos Prime E. O., Maria E. Mata-Zamora, Patricia Ponce
Summary: Nanostructured Eu2O3:Polyphenylacetylene complexes were synthesized and embedded into mesoporous alpha-SiO2 sonogel hosting networks to obtain luminescent (Eu2O3:PPA): SiO2 monolith glasses. The composites exhibited sharp violet and blue photoluminescence bands, and their CIE coordinates were located in the light violet/blue region. The host-guest redox interactions and Eu/SiO2 surface-assisted mechanisms played important roles in achieving a homogeneous self-reduction and structuring of steady Eu2+-silicates.
Review
Chemistry, Analytical
Yuliya A. Podkolodnaya, Alina A. Kokorina, Tatiana S. Ponomaryova, Olga A. Goryacheva, Daniil D. Drozd, Mikhail S. Khitrov, Lingting Huang, Zhichao Yu, Dianping Tang, Irina Yu. Goryacheva
Summary: Luminescent carbon nanostructures (CNSs) have attracted attention due to their photoluminescent properties, structural features, low toxicity, and various applications. The application of a silica matrix reduces the challenges in separating CNSs and improves their optical properties. In addition, multifunctional particles combining CNSs with other nanoparticles show promise in diverse fields.
Article
Environmental Sciences
Virginia Venezia, Giulio Pota, Brigida Silvestri, Giuseppe Vitiello, Paola Di Donato, Gianluca Landi, Valentina Mollo, Mariavittoria Verrillo, Silvana Cangemi, Alessandro Piccolo, Giuseppina Luciani
Summary: This study aims to unveil the stability and functional properties changes of hybrid HA-SiO2 nanoparticles in aqueous environment through preparation and aging experiments. The interactions between HA and inorganic nanoparticles were demonstrated, showing their effects on antioxidant activity and other properties.
Article
Materials Science, Ceramics
Deepankara Vrushabhadas Shastri, Karthigeyan Annamalai, N. P. Rajamane, T. Revathi, Suriyaprakash Rajadesingu, Kantha D. Arunachalam
Summary: This study investigates the impact of borax additive on the gamma radiation attenuating property of Geopolymer systems. Comparative analysis of control Geopolymer and borax blended Geopolymer after gamma irradiation shows a significant increase in linear attenuation coefficient (μ) by 23.4%. The addition of borax leads to the formation of higher order polymer networks and enhances the reactivity and polymerization process.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Jing Wang, Yv Chen, Shun Wang, Huiqing Liu, Fengming Zhao
Summary: The study has found that increasing the hydrophobicity of nanoparticles can enhance foam stability, while the charge properties of nanoparticles significantly influence the stability of the compound system. Electrostatic repulsion between anionic surfactants and hydrophilic nanoparticles reduces foam stability, while electrostatic attraction between cationic surfactants and hydrophilic nanoparticles enhances foam stability.
Article
Materials Science, Multidisciplinary
Jiaqi Chen, Xi Lu, Yejun Chen, Jintao Shuai, Jian Gao, Xiaoyang Liu, Wei Feng
Summary: This work regulated the upconversion luminescence performance of UCNPs by coupling with Au nanorod-silicon core-shell nanostructures. The influence of the thickness and surface charge of the silica shell on the energy transfer of UCNPs was explored.
Article
Biophysics
Mengyao Shi, Suke Lan, Chun Zhang, Wenzheng Xiong, Qun Li, Tusunniyaze Maimaiti, Fangshi Liu, Chengzhuang Liang, Xian Wu, Sheng-Tao Yang
Summary: In this study, Cr3+/Pr3+doped zinc gallogermanate persistent luminescent nanoparticles (PLNPs) were successfully applied for fast tumor drainage lymph node imaging with high contrast. PLNPs showed low toxicity and high performance in identifying lymph nodes, making them a promising imaging reagent for oncological surgery.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Cynthia Collantes, Victoria Gonzalez Pedro, Maria-Jose Banuls, Angel Maquieira
Summary: Despite ongoing advances in metal halide perovskite nanocrystals, their use as luminescent labels for ex vivo imaging and biosensing is still in the early stages of investigation. The synthesis of monodispersed spherical CsPb2Br5@SiO2 core-shell nanoparticles by post-synthetic chemical transformation of 3D CsPbBr3 NCs has been achieved, with the potential for future applications in luminescent biological labels.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Taissir Aissa, Regaya Ksiksi, Ines Elbini-Dhouib, Raoudha Doghri, Najet Srairi-Abid, Mohamed Faouzi Zid
Summary: A new compound (C4H2N2)(6)V10O28·3H2O was synthesized and characterized, showing potential therapeutic applications when injected at high doses into mice. The structure was analyzed by various methods, and it was found to be safe in vivo, indicating its potential as a therapeutic molecule.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Biochemistry & Molecular Biology
Qin Wang, Qing Chang, Mei Sun, Chenghao Liu, Jiahui Fan, Yijun Xie, Xiaoyong Deng
Summary: The study found that fluorescent ultra-small SiO2 NPs (US-FMSNs) could accumulate in zebrafish chorion, abdomen, and intestine, and the combined exposure of BPA and US-FMSNs had strong impacts on multiple toxic endpoints of zebrafish.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2021)
Article
Chemistry, Physical
Mohamed Akouibaa, Imane Lakkab, Amani Direm, Mohammed Lachkar, Rachid Ouarsal, Souad Rakib, Vesim Nasif, Koray Sayin, Nicola Morley, Brahim El Bali
Summary: The compound [Cu2(ox)(dien)2](NO3)3 has been synthesized and characterized by various techniques, including single-crystal X-ray diffraction, FTIR, and UV-Vis spectroscopy. The complex exhibits interesting crystal structure, thermal stability, and antioxidant activity.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Materials Science, Multidisciplinary
Sirine Fattoum, Jean-Paul Chopart, Emilie Charpentier, Jorge Mejia, Sophie C. Gangloff, Valerie Mancier
Summary: In this study, copper (I) oxide nanoparticles were successfully synthesized using the out-of-phase pulsed sonoelectrochemical method. The nanoparticles were characterized and compared with commercial cuprite and copper nanoparticles. The results showed that the sonoelectrochemical Cu2O nanopowders exhibited excellent antibacterial properties, making them a promising and cost-effective antibacterial material for industrial applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Parvathiraja Chelliah, Saikh Mohammad Wabaidur, Hari Prapan Sharma, Muhsin J. Jweeg, Hasan Sh. Majdi, Munthir Mohammed Radhy AL. Kubaisy, Amjad Iqbal, Wen-Cheng Lai
Summary: This research presents a green, low-cost, and eco-friendly method to synthesize cobalt oxide nanoparticles using Curcuma longa plant extract. These nanoparticles exhibit excellent antimicrobial activity against gram-positive and gram-negative bacteria and efficient degradation of organic dye pollutants under visible light irradiation. The bio-molecules in the plant extract also enhance the electron activity and improve the absorption and recombination effects.
Article
Materials Science, Ceramics
M. Elansary, M. Belaiche, Y. Mouhib, O. M. Lemine, N. Bentarhlia, I. Bsoul
Summary: Assessing the biocompatibility of CoFe(2-x-y-z)GdxSmyHozO4 nanoparticles synthesized by the auto-combustion method was conducted for the first time. The nanoparticles showed a quasi-spherical shape with size distribution of 24-51 nm. The magnetic properties of the nanoparticles can be tuned by doping for various biomedical applications. Sub-chronic toxicity evaluation in rats indicated no significant toxicity at doses below 250 mg/kg (oral) and 40 mg/kg (intraperitoneal), suggesting potential use in biomedical applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Mackenson Polche, Blancas Flores Jose Miguel, Carlos Alberto Guzman Gonzalez, Gabriel Gonzalez Contreras, Victor Hugo Romero Arellano
Summary: Luminescent solar concentrators (LSCs) integrated into buildings as photovoltaic windows have gained popularity for producing green energy. Carbon quantum dots (C-QDs) are the most studied luminescent material for LSCs due to their low toxicity, sustainability, and low cost. However, C-QDs have low efficiency, and incorporating SiO2 nanoparticles (Nps) for light-scattering effect can improve LSC performance. This research evaluates the contribution of the scattering effect in different systems of C-QDs and SiO2 Nps in a possible LSC.
Article
Cardiac & Cardiovascular Systems
Koichi Sagawa, Tsugutoshi Suzuki, Kohta Takei, Masaru Miura, Hideaki Ueda, Hitoshi Horigome, Hiroshi Ono, Naoki Ohashi, Seiichi Sato, Hideo Fukunaga, Hisaaki Aoki, Aya Miyazaki, Heima Sakaguchi, Eiichiro Morishima, Kaori Oki, Naokata Sumitomo
Summary: The HEARTFUL study investigated the efficacy and safety of landiolol, a short-acting β1 selective blocker, in pediatric patients with reduced cardiac function and tachyarrhythmias. The study found that 48% of patients achieved a reduction in heart rate or termination of tachycardia. Although adverse reactions occurred, the risk of circulatory collapse due to hypotension was considered low.
CIRCULATION JOURNAL
(2023)
Article
Chemistry, Physical
Ovidiu Cretu, Dai-Ming Tang, Da-Bao Lu, Bo Da, Yoshihiro Nemoto, Naoyuki Kawamoto, Masanori Mitome, Zejun Ding, Koji Kimoto
Summary: We have mapped the temperature distribution of suspended carbon nanotubes at the 5-nm level inside a transmission electron microscope using electron energy-loss plasmon spectroscopy. The results show that these nanotubes can withstand extremely high current densities and temperatures, confirming them as ideal candidates for interconnects.
Article
Chemistry, Multidisciplinary
Meiqi Zhang, Fabien Grasset, Yuji Masubuchi, Toshihiro Shimada, Thi Kim Ngan Nguyen, Noee Dumait, Adele Renaud, Stephane Cordier, David Berthebaud, Jean-Francois Halet, Tetsuo Uchikoshi
Summary: The Mo cluster-MoS2 composite was synthesized through a one-step sulfurization process using H2/H2S gas flow. The decomposed Mo-6 cluster iodides acted as a template and precursor, forming complex Mo cluster compounds and eventually producing MoS2. After sulfurization, the response of the composite to NH3 gas increased three times while showing conversion from p-type to n-type semiconductor, enhancing its potential for device applications.
Article
Chemistry, Multidisciplinary
Maria Amela-Cortes, Noee Dumait, Franck Artzner, Stephane Cordier, Yann Molard
Summary: A luminescent nanocomposite based on red-NIR phosphorescent molybdenum nanoclusters embedded in an eco-friendly cellulose biopolymer matrix was developed. Homogeneity was maintained up to 20 wt% of cluster complex doping, and annealing hybrids led to a significant increase in their emission efficiency.
Article
Chemistry, Multidisciplinary
Maria Amela-Cortes, Maxence Wilmet, Samuel Le Person, Soumaya Khlifi, Clement Lebastard, Yann Molard, Stephane Cordier
Summary: New nanocomposite materials with UV-NIR blocking properties and hues ranging from green to brown were prepared by integrating inorganic tantalum octahedral cluster building blocks prepared via solid-state chemistry in a PMMA matrix. The oxidation state of the Ta-6 cluster inorganic building blocks can be controlled to tune the optical and blocking properties of the composite. The synthesis involves the solid-state chemical reaction of ternary halide K-4[{Ta6Br12i}Br-6(a)] and the replacement of potassium cations with functional organic cations (Kat(+)) bearing a methacrylate function.
Correction
Green & Sustainable Science & Technology
Zichao Lian, Yoichi Kobayashi, Junie Jhon M. Vequizo, Chandana Sampath Kumara Ranasinghe, Akira Yamakata, Takuro Nagai, Koji Kimoto, Katsuaki Kobayashi, Koji Tanaka, Toshiharu Teranishi, Masanori Sakamoto
NATURE SUSTAINABILITY
(2023)
Article
Energy & Fuels
Tatiana Lappi, Stephane Cordier, Yakov Gayfulin, Soraya Ababou-Girard, Fabien Grasset, Tetsuo Uchikoshi, Nikolay G. Naumov, Adele Renaud
Summary: This study investigates the effect of metal/ligand on the photoinduced conductivity properties of two types of cluster core building blocks, {Re6S8i} and {Re6Se8i}, using a comprehensive range of characterization techniques. The composition of {Re(6)Q(8)(i)}-based films (Q = S or Se) significantly affects their optical and electronic properties. By increasing the interactions between the cluster building blocks through heating, the electronic properties can be enhanced. The design of mixed {Re(6)Q(8)(i)}-based photoelectrodes combining n-{Re6S8i} and p-{Re6Se8i} cluster core-based building blocks allows for the optimization of photocurrents, making them attractive for solar cell applications.
Article
Nanoscience & Nanotechnology
Resul Ozdemir, Hannes Van Avermaet, Onur Erdem, Pieter Schiettecatte, Zeger Hens, Tangi Aubert
Summary: Quantum dots (QDs) are extensively used as light emitters in photonic and optoelectronic applications. To prevent degradation of their optical properties, QDs must be encapsulated between barrier layers to shield them from oxygen and water vapor. A new approach for direct patterning of QDs through maskless lithography has been developed.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Jae-Hun Kim, Isao Sakaguchi, Shunich Hishita, Takeo Ohsawa, Taku T. Suzuki, Noriko Saito
Summary: In this study, Sb ions were implanted into p-type tungsten disulfide nanosheets and their gas-sensing properties for CO gas were investigated. Sb5+ ions dominated and acted as donors, changing the conductivity of WS2 from p-type to n-type. The highest response to CO gas was achieved with 2 x 1013 Sb ions/cm2 implantation and annealing at 500 degrees C. Au nanoparticles were then decorated on the optimal gas sensor surface to improve its response. The enhanced gas performance was attributed to increased O ionosorption, formation of Au/Sb-WS2 heterojunctions, and the catalytic effect of Au nanoparticles.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Jacob A. Erstling, Nirmalya Bag, Thomas C. Gardinier, Ferdinand F. E. Kohle, Naedum Domnwachukwu, Scott D. Butler, Teresa Kao, Kai Ma, Melik Z. Turker, Grant B. Feuer, Rachel Lee, Nada Naguib, James F. Tallman, Henry F. Malarkey, Lieihn Tsaur, William L. Moore, Dana V. Chapman, Tangi Aubert, Saurabh Mehta, Richard A. Cerione, Robert S. Weiss, Barbara A. Baird, Ulrich B. Wiesner
Summary: The study examines the interactions of fluorescent and poly(ethylene glycol)-coated (PEGylated) core-shell silica nanoparticles with biological barriers during oral delivery. It finds that ultra-small nanoparticles below 10 nm diameter passively pass through tight junctions, while particles above 20 nm diameter are actively transported through cells. Additionally, the in vivo experiments in mice demonstrate successful passage through the body and renal clearance without protein corona formation, suggesting the nanoparticles as viable candidates for oral administration.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Morito Namba, Hiroshi Takatsu, Riho Mikita, Yao Sijia, Kantaro Murayama, Hao-Bo Li, Ryo Terada, Cedric Tassel, Hiroki Ubukata, Masayuki Ochi, Regino Saez-Puche, Elias Palacios Latasa, Naoki Ishimatsu, Daisuke Shiga, Hiroshi Kumigashira, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Takahito Terashima, Koji Fujita, Takeaki Mashiko, Keiichi Yanagisawa, Koji Kimoto, Hiroshi Kageyama
Summary: In this study, an anionic approach was demonstrated to induce intersite charge transfer (ICT) in the oxyhydride perovskite EuVO2H, resulting in increased conductivity and transition temperature (T-C). Furthermore, a large perpendicular magnetic anisotropy was observed in thin films, providing new possibilities for materials with novel functions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Regis Guegan, Xiaoxue Cheng, Xiang Huang, Zuzana Nemeckova, Michaela Kubanova, Jaroslav Zelenka, Tomas Ruml, Fabien Grasset, Yoshiyuki Sugahara, Kamil Lang, Kaplan Kirakci
Summary: The emergence of multidrug-resistant microbial pathogens poses a significant threat to effective antibiotic therapy. Photoinactivation using materials generating reactive oxygen species upon exposure to visible light can overcome this challenge by targeting vital components of living cells, reducing the likelihood of resistance development.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Alexis Verger, Gilles Dollo, Nolwenn Brandhonneur, Sophie Martinais, Stephane Cordier, Kamil Lang, Maria Amela-Cortes, Kaplan Kirakci
Summary: Efficient intracellular uptake of the photosensitizer is necessary for photodynamic applications. In this study, PEGylated poly(lactic-co-glycolic acid) nanoparticles loaded with an octahedral molybdenum cluster complex were prepared. The encapsulated complexes maintained their photocytotoxic activity and exhibited high colloidal stability, making them potential agents for photodynamic therapy.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Laurent Noel, Amine Khitous, Celine Molinaro, Hsiao-Wen Zan, Dominique Berling, Fabien Grasset, Olivier Soppera
Summary: This study successfully crystallizes TiO2 thin films from a sol-gel solution using near-infrared laser annealing, with gold nanoparticle arrays as nano-heaters. The presence of the anatase phase confirms the temperature increase achieved by the laser, and different analytical techniques support the findings. A numerical model highlights the role of nanoparticle coupling in the photothermal effect. Direct laser patterning and photolithography techniques are demonstrated. This fabrication method has promising applications in photonics, photocatalysis, and biosensing.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Physics, Applied
Kota Hasegawa, Takao Shimizu, Takeo Ohsawa, Isao Sakaguchi, Naoki Ohashi
Summary: Room temperature ferroelectricity was studied in unsubstituted AlN films to investigate the effect of cation substitution. AlN and (Al0.7Sc0.3)N films deposited on (111) 0.5 wt.% Nb-doped SrTiO3 showed different in-plane lattice alignments depending on the composition and deposition temperature. The AlN films deposited at 450 degrees C exhibited incomplete ferroelectric switching due to dielectric breakdown, while the (Al0.7Sc0.3)N films showed full polarization reversal. Low-temperature deposition at 250 degrees C enhanced the dielectric breakdown field and allowed for sufficient polarization switching at room temperature. The reduction in coercive field was primarily attributed to the alteration of crystal lattice anisotropy caused by Sc.
APPLIED PHYSICS LETTERS
(2023)
