Article
Chemistry, Multidisciplinary
Dafne Musino, Aurelie Rosset, Cecile Lelong, Sylvie Luche, Virginie Berge, Gregory Brochard, Manon Plumail, Benedicte Trouiller, Aurelien Auger, Arnaud Guiot, Julien Patouillard, Stephanie Desrousseaux, Sebastien Artous, Thierry Rabilloud, Delphine Boutry, Isabelle Capron
Summary: In this study, biocidal paints were developed using a safer-by-design approach with nanohybrids of silver nanoparticles (AgNPs) on cellulose nanocrystals (CNCs) to provide efficient antibacterial activity. The analysis showed that paints with AgNPs dispersed optimally and smallest in size exhibited the strongest biocidal effect. Overall, the development of CNC/AgNP hybrids presents a pathway for highly efficient and eco-friendly materials with reduced environmental impact.
ENVIRONMENTAL SCIENCE-NANO
(2021)
Article
Energy & Fuels
Ling-Wei Wei, Kuen-Song Lin, H. Paul Wang
Summary: This study demonstrates the effective conversion of H2O(l)-to-H2O2(aq) and -H-2(g) using the novel Pd-TiO2-delta/TiO2 photocatalysts through photocatalytic reactions. The results show that this photocatalyst can efficiently generate green energy under solar energy.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Soil Science
Beatrice Giannetta, Danilo Oliveira de Souza, Giuliana Aquilanti, Luisella Celi, Daniel Said-Pullicino
Summary: Paddy soils undergo long-term redox alternations affecting the interaction between iron (Fe) and carbon (C) biogeochemical cycling. Different particle aggregation and soil organic matter (SOM) turnover could be influenced by the trajectory of Fe mineral evolution/crystallinity with redox fluctuations. Our study found that paddy topsoils, although depleted in hydrous Fe oxides, can stabilize significant amounts of carbon through mineral associations, especially with finer particle-size fractions containing less crystalline Fe phases. Moreover, redox cycling can impact microaggregate stability and the distribution of Fe phases and organic carbon between intra and inter-microaggregate fractions. Illuvial horizons under paddy management were enriched in short-range ordered hydrous Fe oxides, leading to enhanced microaggregate formation and carbon stabilization compared to non-paddy subsoils.
Article
Chemistry, Multidisciplinary
Dafne Musino, Julie Devcic, Cecile Lelong, Sylvie Luche, Camille Rivard, Bastien Dalzon, Gautier Landrot, Thierry Rabilloud, Isabelle Capron
Summary: Research has shown that combining silver nanoparticles (AgNPs) with cellulose nanocrystals (CNCs) can produce nanomaterials with high biocidal activity and no toxicological impact. Experimental results indicate that the morphology and biocidal activity of AgNPs are influenced by their oxidation state and shape transitions.
Article
Materials Science, Multidisciplinary
Galina M. Kuz'micheva, Liudmila I. Ivleva, Irina A. Kaurova, Evgeny Khramov, Victor B. Rybakov, Maxim E. Doroshenko
Summary: Calcium orthovanadate single crystals doped with manganese were studied, revealing Mn3+ ions and vacancies at different sites; proposed models for the rearrangement of polyhedra; observed different oxidation states of manganese ions through optical spectroscopy.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Multidisciplinary
Seiya Shimono, Masataka Sekine, Yasuhiro Niwa, Hajime Sagayama, Koji Araki, Yoshiaki Hata, Hiroaki Kishimura
Summary: Novel organic-inorganic hybrid materials, including [MeIM]2[MnBr4] and [EtIM]2[MnBr4], were synthesized using a solid-state reaction method and characterized by various techniques. These compounds exhibited narrow green emission bands due to the electronic transitions of the Mn2+ ion, with [EtIM]2[MnBr4] showing a quantum efficiency of 74.5%. The luminescence properties of the materials were influenced by the solid-to-liquid phase transitions and the presence of [MeIM]+ and [EtIM]+ cations, as indicated by X-ray absorption fine structure spectra, differential scanning calorimetry curves, and temperature dependences of the photoluminescence spectra.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Biophysics
Hui Wang, Cuifang Liu, Xiaoting Zhang, Tiancong Xiu, Ping Li, Wei Zhang, Wen Zhang, Xin Wang, Zhenzhen Liu, Bo Tang
Summary: Investigating the use of a fluorescence probe to detect increased Golgi ROS levels in hypertensive mice, evaluating the efficacy of antihypertensive drugs, and identifying ROS post-transcriptional modification sites on dihydrofolate reductase. This suggests a new therapeutic target for hypertension and the development of new antihypertensive drugs.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Yulei Wang, Joao C. A. Oliveira, Zhipeng Lin, Lutz Ackermann
Summary: The study introduces the first electrochemical metal-catalyzed [5+2] cycloadditions, assembling seven-membered benzoxepine skeletons with a high substrate scope and efficiency. The mechanistic studies support a rhodium(III/I) regime involving a benzoxepine-coordinated rhodium(I) sandwich complex as the catalyst resting state.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Entong Ye, Zheng Chen, Yongyong Shi, Dan Zhang, Wenfei Li, Hong Qin, Ziming Luo, Quansheng Wu, Qian Lin, Hongyan Pan, Keliang Wang
Summary: By using polyelectrolyte membranes (SPE) as an electronic acceptor to anchor Pd catalyst, a H2O2 selectivity of 90.1% and productivity of 5764.4 mmol·gPd^-1·h^-1 were achieved. TEM, XRD, ICP-MS, XPS, CO-DRIFT, O2-TPD, synchrotron radiation, and density functional theory (DFT) simulations revealed that the electrons of Pd are transferred into polyelectrolyte membranes and Pd clusters are strongly chemisorbed on SPE, leading to enhanced H2O2 productivity and selectivity by promoting O2 adsorption and inhibiting O-O bond dissociation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xiang Wu, Hui Liu, Xiaobing Lou, Fushan Geng, Jingxin Li, Chao Li, Bingwen Hu
Summary: Layered lithium-rich (Li-rich) oxide cathodes with capacity contribution via oxygen redox have potential for high energy density in Li-ion batteries. The chemical states of oxidized oxygen in charged materials are under debate, including O(2- ), O-O dimer (O-2)(n-) (n > 0), molecular O-2, and oxygen p redox. Electron paramagnetic resonance (EPR) spectroscopy reveals that covalent interactions between 4d transition metal and oxygen can inhibit trapped molecular O-2 but not O-O dimer formation in Li-rich ruthenate compounds Li2Ru0.75Sn0.25O3 and Li2Ru0.5Sn0.5O3.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Mithun Prakash Ravikumar, Toan-Anh Quach, Bharagav Urupalli, Krishtappa Manjunatha, Mamatha Kumari Murikinati, Shankar Muthukonda Venkatakrishnan, Sheng Yun Wu, Trong-On Do, Sakar Mohan
Summary: In addition to metal oxides, materials with different anionic setups, such as metal chalcogenides and metal oxyhalides, have been widely studied for photocatalytic applications. The development of the oxynitride phase from conventional metal oxides has gained significant interest in photocatalysis research. This study focuses on the synthesis and characterization of an iron oxynitride system, demonstrating its superior photocatalytic properties compared to bare iron oxide and nitride systems.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Galina M. Kuz'micheva, Levko A. Arbanas, Vera L. Manomenova, Irina A. Kaurova, Victor B. Rybakov, Evgeny Khramov, Nadezhda A. Lobanova, Sergey Yu. Stefanovich, Andrey Dorokhov
Summary: Nanocomposites based on nickel sulfate hexahydrate and titanium oxide nanoparticles have been synthesized for the first time, revealing unique structural and property characteristics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Juan Li, Chao Wu, Chengsong Yuan, Zhuanzhuan Shi, Kaiyue Zhang, Zhuo Zou, Lulu Xiong, Jie Chen, Yali Jiang, Wei Sun, Kanglai Tang, Hongbin Yang, Chang Ming Li
Summary: This study synthesized an iron single atomic site catalyst anchored on 2-D N-doping graphene (Fe-SASC/G) and used it as a biomimetic sensor to electrochemically detect hydrogen peroxide. The catalyst exhibited an extremely high sensitivity and the mechanism behind it was investigated. The results showed that the distance between adjacent single Fe atomic catalytic sites on 2-D graphene matched well with the outer length of bioxygen of H2O2, leading to a bridge adsorption that enabled simultaneous 2-electron transfer.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Juan Li, Chao Wu, Chengsong Yuan, Zhuanzhuan Shi, Kaiyue Zhang, Zhuo Zou, Lulu Xiong, Jie Chen, Yali Jiang, Wei Sun, Kanglai Tang, Hongbin Yang, Chang Ming Li
Summary: In this study, an iron single atomic site catalyst anchored on 2-D N-doping graphene was synthesized and used as a biomimetic sensor for hydrogen peroxide detection, showing a high sensitivity. The results indicate that the distance between adjacent single Fe atomic catalytic sites on 2-D graphene matches well with the outer length of H2O2 for a bridge adsorption of -O-O- and simultaneous 2-electron transfer. This research provides insights into the mechanism of single atomic catalysis and the effects of substrate dimensions.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Paula Fernandez-Canelas, Ruben Miguelez, Eduardo Rubio, Jose Manuel Gonzalez, Pablo Barrio
Summary: Gold-vinylidene complexes, generated in situ, can activate one of the strongest bonds in organic chemistry (Si-O) and achieve the synthesis of 3-bromo-2-silylbenzofuranes.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Anne-Laure Fameau, Arnaud Saint-Jalmes, Fabrice Cousin, Berenice Houinsou Houssou, Bruno Novales, Laurence Navailles, Frederic Nallet, Cedric Gaillard, Francois Boue, Jean-Paul Douliez
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2011)
Article
Chemistry, Physical
Anne-Laure Fameau, Jorge Ventureira, Bruno Novales, Jean-Paul Douliez
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2012)
Article
Chemistry, Physical
Jean-Paul Douliez, Bruno Novales, Cedric Gaillard
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2009)
Article
Chemistry, Physical
Jean-Paul Douliez, Berenice Houinsou-Houssou, Anne-Laure Fameau, Bruno Novales, Cedric Gaillard
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2010)
Article
Chemistry, Physical
Benedicte Rullier, Monique A. V. Axelos, Dominique Langevin, Bruno Novales
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2010)
Article
Chemistry, Physical
I. Schmidt, B. Novales, F. Boue, M. A. V. Axelos
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2010)
Article
Chemistry, Multidisciplinary
M. H. Ropers, B. Novales, F. Boue, M. A. V. Axelos
Article
Chemistry, Multidisciplinary
Bruno Novales, Laurence Navailles, Monique Axelos, Frederic Nallet, Jean-Paul Douliez
Article
Chemistry, Multidisciplinary
Bruno Novales, Alain Riaublanc, Laurence Navailles, Berenice Houinsou Houssou, Cedric Gaillard, Frederic Nallet, Jean-Paul Douliez
Article
Chemistry, Multidisciplinary
Anne-Laure Fameau, Berenice Houinsou-Houssou, Jorge Luis Ventureira, Laurence Navailles, Frederic Nallet, Bruno Novales, Jean-Paul Douliez
Article
Chemistry, Applied
I. Jebalia, J. -E. Maigret, A. -L. Reguerre, B. Novales, S. Guessasma, D. Lourdin, G. Della Valle, M. Kristiawan
CARBOHYDRATE POLYMERS
(2019)
Article
Chemistry, Physical
Dafne Musino, Camille Rivard, Gautier Landrot, Bruno Novales, Thierry Rabilloud, Isabelle Capron
Summary: The study focuses on the interaction between cellulose surface and Ag nanoparticles (AgNPs) to manufacture hybrid nanomaterials using bacterial cellulose nanocrystals (BCNs) as a model substrate. Results show that -OH surface groups are nucleation points for AgNPs and surface charges improve accessibility to OH groups. Additionally, H2O2 redox posttreatment increases AgNPs size and changes shape, while having no effect on aggregated hybrids.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Polymer Science
Samuel Mandin, Samuel Moreau, Malika Talantikite, Bruno Novales, Jean-Eudes Maigret, Bernard Cathala, Celine Moreau
Summary: By preparing aerogels from gelled dispersions of CNFs and XG using freeze-casting, the microstructure of the aerogel can be altered, resulting in improved water absorption capacity with shape recovery ability. The relationship between morphology and aerogel compositions is discussed.
Article
Chemistry, Applied
Estelle Doineau, Guillaume Bauer, Leo Ensenlaz, Bruno Novales, Cecile Sillard, Jean-Charles Benezet, Julien Bras, Bernard Cathala, Nicolas Le Moigne
CARBOHYDRATE POLYMERS
(2020)