Article
Chemistry, Physical
Sebastiano Campisi, Marta Stucchi, Nikolaos Dimitratos, Alberto Villa
Summary: This account highlights Laura Prati's significant contributions to the field of inorganic chemistry, particularly in the area of liquid-phase heterogeneous catalysis. Her innovative approaches to catalyst synthesis, particularly in the colloidal synthesis of metal nanoparticles, have greatly influenced the design of materials. Additionally, her investigations into oxidation and valorization processes have expanded knowledge in biomass conversion.
Article
Chemistry, Physical
Sebastiano Campisi, Marta Stucchi, Nikolaos Dimitratos, Alberto Villa
Summary: This article celebrates Laura Prati's long and successful scientific career, highlighting her major accomplishments in inorganic chemistry since she began her work as a researcher. She made significant contributions in the field of catalyst synthesis, particularly in the development of innovative strategies for preparing catalysts and the colloidal synthesis of metal nanoparticles, mainly gold. Her investigations in colloids for catalysis had a profound impact on catalyst synthesis and optimization. Throughout her career, she also focused on liquid-phase oxidation reactions, biomass valorization processes, and hydrogenation and hydrogenolysis reactions. Her discoveries have greatly influenced researchers in the fields of heterogeneous catalysis and material design.
Article
Polymer Science
Kouki Oka, Yusuke Kaiwa, Kazuki Kobayashi, Yuka Tobita, Kenichi Oyaizu
Summary: A new quaternized polymer was synthesized by introducing butanediol into poly(allylamine) and converting the remaining amino groups into quaternary ammonium cations. The hydrophilicity and electrostatic repulsion of the polymer accelerated the dehydrogenation of butanediol. The reaction rate was one order of magnitude higher than that in single molecules.
Article
Chemistry, Physical
Yuyin Xi, Ryan P. Murphy, Qingteng Zhang, Aurora Zemborain, Suresh Narayanan, Junsu Chae, Siyoung Q. Choi, Andrei Fluerasu, Lutz Wiegart, Yun Liu
Summary: Bicontinuous structures have broad applications in various research fields. A new gel called SeedGel has been developed to create reversible bicontinuous channels with tunable particle sizes. The mechanical properties of SeedGel were characterized using temperature-dependent rheology, showing excellent reproducibility and an interesting temperature dependence. The gelation transition and solvent exchange between domains were studied using SANS measurements, while the long-time dynamics of the gel were studied with X-ray Photon Correlation Spectroscopy (XPCS).
Article
Chemistry, Physical
Gannena K. S. Raghuram, Lalit Bansal, Saptarshi Basu, Aloke Kumar
Summary: This study experimentally investigates the concentration and molecular weight dependence of deposit patterns of polymer droplets on hydrophobic surfaces. The results show a transition from ring to non-ring patterns with increasing concentration, while decreasing the polymer molecular weight does not suppress the coffee ring formation. The findings provide insights for applications like inkjet printing, surface coatings, and biotechnology assays where tuning polymer deposit patterns is important.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Polymer Science
Heather S. C. Hamilton, Cornelia Meissner, Todd Emrick, Laura C. Bradley
Summary: A one-step dispersion copolymerization technique is used to fabricate biphasic particles with complex morphology. The study shows that the particle morphology can be transformed by washing the particles with water. The copolymerization process can be controlled by the solubility profile of the monomers, resulting in phase-separated particle morphology.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Giovanni Russo, Marco Lattuada
Summary: In this work, a method combining activated swelling and control of free radical polymerization is used to successfully prepare monodisperse non-spherical polymer particles with asymmetric Janus structure. The addition of inhibitors 4-methoxyphenol (MEHQ) and O2 during the polymerization process enables the control of particle shape, resulting in a variety of shapes with excellent monodispersity and reproducibility. Furthermore, the introduction of iron oxide nanocrystals within the polymer matrix adds superparamagnetic properties to these non-spherical polymer particles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Alessandra Partenope, Fabio Pizzetti, Valeria Vanoli, Mose Casalegno, Alberto Cingolani, Liebert Parreiras Nogueira, Franca Castiglione, Havard J. Haugen, Filippo Rossi
Summary: This study proposes a strategy to use colloidal nanoparticles to form biphasic, stable, and porous structures at the polymer-water interface, which can enhance the mechanical properties of the devices and have wide applications in various fields.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Kata Dorbic, Marco Lattuada
Summary: This paper reviews the development of emulsion polymerization techniques and their exceptional control over the size, size distribution, and composition of polymer particles. It also covers the synthesis, functionalization, and applications of particles with protrusions and concavities. The rationalization of the various approaches used for particle preparation and the discussion of formation mechanisms are highlighted. The goal is to promote a broader use of these particles and the development of more effective synthetic protocols.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Silvia Bozhilova, Katerina Lazarova, Sijka Ivanova, Daniela Karashanova, Tsvetanka Babeva, Darinka Christova
Summary: In this study, aqueous copolymer dispersions of methyl (meth)acrylate-grafted poly(vinyl alcohol) were synthesized and researched for their potential in thin film deposition. The copolymer structures were varied by adjusting the monomer-to-PVA ratio and initiator concentration during redox polymerization. The films deposited on silicon substrates were characterized optically and their suitability for optical sensing of acetone vapors was confirmed through reflectance measurements.
Article
Chemistry, Multidisciplinary
Irene Mustieles Marin, Juan M. Asensio, Bruno Chaudret
Summary: Bimetallic nanoparticles have properties that far exceed those of individual constituents and find applications in catalysis, electro-catalysis, and magnetism. Modification of the surface of these nanostructures under reaction conditions may lead to the formation of structures with enhanced catalytic activity.
Article
Chemistry, Multidisciplinary
Rachel S. Bang, Sangchul Roh, Austin H. Williams, Simeon D. Stoyanov, Orlin D. Velev
Summary: A universal method based on polymer precipitation templated by fluid streamlines in multiphasic flow is explored for fabricating diverse nano- and micro-scale morphologies. By systematically investigating the process conditions, 12 distinct classes of polymer micro- and nano-structures are identified. The liquid shear-based technique shows potential as a versatile and scalable nanofabrication tool.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Mikhail Y. Y. Laktionov, Ekaterina B. B. Zhulina, Leonid Klushin, Ralf P. P. Richter, Oleg V. V. Borisov
Summary: Polymer brushes have diverse applications and play crucial roles in biological systems. The binding and movement of colloids on polymer brushes are poorly understood. This study presents a theoretical approach that considers solvent strength and colloid-polymer affinity to analyze colloid transport in planar polymer brushes. The theory provides insights on adjusting brush properties for enhanced selectivity and can aid in designing sensing and purification devices.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yutong Pi, Linxia Cui, Wenhao Luo, Haitao Li, Yanfu Ma, Na Ta, Xinyao Wang, Rui Gao, Dan Wang, Qihua Yang, Jian Liu
Summary: This study reports a method for designing hollow nanoreactors with hollow multishelled structure and spatially loaded metal nanoparticles. The combination of delicate nanoarchitecture and spatially loaded metal nanoparticles endows the nanoreactors with high catalytic activity and selectivity in catalytic semihydrogenation reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Daria A. Goncharova, Tamara S. Kharlamova, Olesia A. Reutova, Valery A. Svetlichnyi
Summary: Colloidal nanoparticle catalysts play a crucial role in industrial processes and fundamental studies, with laser ablation in liquid (LAL) being a promising method for preparing nanoparticle colloids. The use of mixed solutions can lead to stable colloids with potential applications in catalysis.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Inorganic & Nuclear
Clara S. B. Gomes, Paramasivam Krishnamoorthy, Leonel C. Silva, Sandra I. Costa, Pedro T. Gomes, Manuel Jimenez-Tenorio, Pedro Valerga, M. Carmen Puerta
DALTON TRANSACTIONS
(2015)
Article
Chemistry, Inorganic & Nuclear
Vinay K. Singh, M. Carmen Puerta, Pedro Valerga
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2015)
Article
Chemistry, Inorganic & Nuclear
Manuel Jimenez-Tenorio, M. Carmen Puerta, Pedro Valerga
Article
Chemistry, Inorganic & Nuclear
Manuel Jimenez-Tenorio, M. Carmen Puerta, Pedro Valerga
Article
Chemistry, Inorganic & Nuclear
Lourdes Benitez Junquera, Francys E. Fernandez, M. Carmen Puerta, Pedro Valerga
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2017)
Article
Chemistry, Inorganic & Nuclear
Clara S. B. Gomes, Sandra I. Costa, Leonel C. Silva, Manuel Jimenez-Tenorio, Pedro Valerga, M. Carmen Puerta, Pedro T. Gomes
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2018)
Article
Chemistry, Multidisciplinary
Rashmi Dubey, Praveen Singh, Ajeet K. Singh, Manoj K. Yadav, D. Swati, Manjula Vinayak, Carmen Puerta, Pedro Valerga, K. Ravi Kumar, B. Sridhar, Ashish K. Tewari
CRYSTAL GROWTH & DESIGN
(2014)
Article
Chemistry, Inorganic & Nuclear
Manuel Jimenez-Tenorio, M. Carmen Puerta, Pedro Valerga, Manuel A. Ortuno, Gregori Ujaque, Agusti Lledos
Article
Chemistry, Multidisciplinary
Sunil Kumar Rai, Priyanka Srivastava, Hariom Gupta, Maria del C. Puerta, Pedro Valerga, Ashish Kumar Tewari
STRUCTURAL CHEMISTRY
(2015)
Article
Chemistry, Inorganic & Nuclear
Andres G. Algarra, Juan Carlos G. Galindo, M. Carmen Puerta, Pedro Valerga, Manuel Jimenez-Tenorio
Summary: At room temperature, the dinitrogen complex [{Cp*Ru(L)}(2)(mu-N-2)]-[BPh4](2) (L = bis(3-methylimidazol-2-ylidene) reacts with dichloromethane to form the diene derivative [Ru(eta(4), kappa(1)-Cl-C5Me5CH2Cl)Cl(L)][BPh4]. DFT computations revealed that while the cleavage of the C-Cl bond is not thermodynamically favored, the subsequent migration step is exergonic, driving the formation of the observed product.
