Article
Materials Science, Ceramics
Alejandra Calvo, Leandro Andrini, Federico J. Williams, Jose M. Ramallo-Lopez, Galo J. A. A. Soler-Illia, Felix G. Requejo
Summary: Mesoporous hybrid materials with inorganic and organic functional groups show potential for advanced applications such as separation, sorption, and catalysis. Studying the structure and variations of these materials under different conditions is crucial for understanding multiscale control and optimizing performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Review
Chemistry, Analytical
Barbara Sartori, Heinz Amenitsch, Benedetta Marmiroli
Summary: Mesoporous materials show great potential for biotechnological applications due to their high surface area, pore interconnection, and ability for controlled molecule delivery. Functionalized thin films of mesoporous silica and titania offer diverse properties, such as cell growth promotion, biofilm inhibition, and sensor development. Incorporation of these materials into devices with tailored architecture and functionalization can result in advanced micro devices that combine standard micro/nanofluids with functional materials.
Article
Materials Science, Multidisciplinary
Edson R. Cardozo de Oliveira, Priscila Vensaus, Galo J. A. A. Soler-Illia, Norberto Daniel Lanzillotti-Kimura
Summary: Researchers proposed a new method for designing tunable acoustic resonators using mesoporous thin films. By simulating the infiltration of the pores with water, they found that the material's properties could be altered, achieving tunability in the acoustic resonances.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Pharmacology & Pharmacy
Madhappan Santhamoorthy, Vanaraj Ramkumar, Kokila Thirupathi, Lalitha Gnanasekaran, Vanitha Karuppannan, Thi Tuong Vy Phan, Seong-Cheol Kim
Summary: In this study, L-lysine modified mesoporous silica nanoparticles (MS@Lys NPs) were synthesized for the delivery of the anticancer drug curcumin (Cur) to cancer cells. The functionalization of L-lysine groups onto the mesopore channel surfaces of MS@GPTS NPs was achieved through a ring-opening reaction. The structural properties of MS@Lys NPs were examined using various instrumental techniques. The drug loading and pH-responsive drug delivery behavior of MS@Lys NPs were investigated using curcumin as a model drug, and their cytocompatibility and cell uptake behavior were evaluated using MDA-MB-231 cells. The results suggest that MS@Lys NPs have potential for pH-responsive drug delivery in cancer therapy.
Article
Materials Science, Multidisciplinary
Lei Wang, Xiaoqi Zhao, Shiming Ren, Zheng Hu, Yamei Wang
Summary: Plant-derived preservatives show excellent antifungal effects, but their active ingredients easily leach out. In this study, a pH-responsive preservative delivery system was designed and synthesized to achieve controlled release. The system effectively reduced leaching, extended the service life of wood, and had potential applications for other preservatives.
MATERIALS & DESIGN
(2023)
Article
Polymer Science
Melisa Trejo-Maldonado, Aisha Womiloju, Steffi Stumpf, Stephanie Hoeppener, Ulrich S. Schubert, Luis E. Elizalde, Carlos Guerrero-Sanchez
Summary: This study reports the synthesis of poly(styrene-block-lactic acid) copolymers with triazole rings as a junction between blocks. The self-assembly behavior and morphological changes induced by different techniques were observed. The synthetic approach showed effectiveness in obtaining copolymer structures with specific self-assembly properties.
Article
Nanoscience & Nanotechnology
Shachar Keren, Cynthia Bukowski, Maya Barzilay, Myounguk Kim, Mikhail Stolov, Alfred J. Crosby, Noy Cohen, Tamar Segal-Peretz
Summary: Sequential infiltration synthesis (SIS) is an emerging technique for fabricating hybrid organic-inorganic materials with nanoscale precision and controlled properties. This work studies the nanocomposite morphology and its effect on the mechanical behavior of SIS-based hybrid thin films of AlOx -PMMA under aqueous environments. Results show that the AlOx content affects the modulus and yield stress of the material. Additionally, the presence of AlOx induces water uptake, which further influences the performance of the hybrid materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Fan Yang, Jun Li, Yin Long, Ziyi Zhang, Linfeng Wang, Jiajie Sui, Yutao Dong, Yizhan Wang, Rachel Taylor, Dalong Ni, Weibo Cai, Ping Wang, Timothy Hacker, Xudong Wang
Summary: The research introduces a novel approach for the large-scale fabrication of piezoelectric biomaterial thin films with excellent piezoelectric properties and mechanical flexibility. The glycine-PVA films, with their natural compatibility and degradability in physiological environments, have the potential to advance the development of transient implantable electromechanical devices.
Article
Chemistry, Multidisciplinary
Tomota Nagaura, Hoang-Phuong Phan, Victor Malgras, Tuan-Anh Pham, Hyunsoo Lim, Aditya Ashok, Jeonghun Kim, Jungmok You, Nam-Trung Nguyen, Jongbeom Na, Yusuke Yamauchi
Summary: This study presents a new synthesis route for mesoporous semiconductors through soft-template-assisted electrochemical deposition. The resulting films exhibit homogeneous distribution of mesopores and high sensitivity in photodetection, demonstrating the versatility and potential for applications in nanostructured semiconductors.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Agricultural Engineering
Ximing Zhong, Hongjian Wen, Runxin Zeng, Hongkai Deng, Guofeng Su, Hongjun Zhou, Xinhua Zhou
Summary: In this study, zein was used to modify mesoporous silica as nanocarriers for loading avermectin, resulting in pH and enzyme-responsive nanopesticides. These nanopesticides exhibited high pesticide loading capacity, enhanced photostability, remarkable pesticidal efficacy, and improved wetting and adhesion properties on cucumber foliar surfaces.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Materials Science, Multidisciplinary
Jissy Jacob, Vijay Robert, Ravi Babu Valapa, Sunny Kuriakose, Sabu Thomas, Sravanthi Loganathan
Summary: This study focuses on the fabrication of PLA/PEI-MS composites to improve the limitations of PLA as food packaging material. The addition of PEI-MS enhanced thermal stability and mechanical properties while reducing oxygen transmission rate for PLA composites.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jissy Jacob, Vijay Robert, Ravi Babu Valapa, Sunny Kuriakose, Sabu Thomas, Sravanthi Loganathan
Summary: The search for sustainable plastics is driven by the environmental pollution issues associated with petrochemical-derived plastics. Bioplastics, such as poly(lactic acid) (PLA), are increasingly being used in packaging due to limited fuel resources. However, poor ductility and gas barrier characteristics limit the use of PLA as food packaging material. This study aims to overcome these limitations by fabricating PLA/polyethylenimine-modified mesoporous silica (PEI-MS) composites. The influence of PEI content in MS and wt % loadings of optimized PEI content in MS on the properties of PLA is investigated in detail. The results show that PEI-MS modification improves the thermal stability and mechanical properties of PLA.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Adil Alshoaibi, Shumaila Islam
Summary: Two different methods, Turkish and sol-gel, were used to synthesize functionalized gold nanostructures. The synthesized gold nanoparticles (AuNPs) and gold nanodendritic (AuNDs) structures were characterized using various microscopy techniques. The results showed that the AuNPs and AuNDs had different morphologies and properties, with good chemical bonding and thermal stability.
Article
Materials Science, Multidisciplinary
Federico Olivieri, Fabio Scherillo, Rachele Castaldo, Mariacristina Cocca, Antonino Squillace, Gennaro Gentile, Marino Lavorgna
Summary: In this study, high-surface-area amino-functionalized mesoporous silica nanoparticles (MSN-NH2) were synthesized and functionalized with benzoyl chloride (MSN-BC) for the release of benzoic acid (BA) in response to acidic and alkaline conditions. These MSN-BC nanoparticles were embedded in acrylic coatings for corrosion protection of aluminum alloys. The coatings showed long-lasting efficiency and were validated through morphological and electrochemical impedance spectroscopy (EIS) measurements, demonstrating their potential for aluminum alloy protection.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Chemical
S. Silviana, Atikah A. Janitra, Afriza N. Sa'adah, Febio Dalanta
Summary: An effective method to prepare slow-release urea was developed using aminopropyl-functionalized mesoporous silica, achieving enhanced urea adsorption and slow-release properties.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Materials Science, Ceramics
Alejandra Calvo, Leandro Andrini, Federico J. Williams, Jose M. Ramallo-Lopez, Galo J. A. A. Soler-Illia, Felix G. Requejo
Summary: Mesoporous hybrid materials with inorganic and organic functional groups show potential for advanced applications such as separation, sorption, and catalysis. Studying the structure and variations of these materials under different conditions is crucial for understanding multiscale control and optimizing performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Esteban A. Franceschini, Gustavo Gimenez, M. Veronica Lombardo, Andres Zelcer, Galo J. A. A. Soler-Illia
Summary: Interest in core-shell materials with chemically tunable mesoporous surfaces has grown, with aerosol synthesis techniques offering faster production and easier separation of functional materials. A green chemistry method was presented for coating sub-micron colloidal particles with mesoporous metal oxide nanofilms, demonstrating high reproducibility and continuous production capabilities. The obtained nanofilms were characterized by various analytical techniques, showing different pore sizes and film thicknesses depending on the particulate support used.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Review
Materials Science, Ceramics
Diego F. Lionello, Juan Ignacio Ramallo, Galo J. A. A. Soler-Illia, Maria Cecilia Fuertes
Summary: The mechanical properties of ordered mesoporous thin films and the experimental techniques used to measure them are discussed in this review. The relationship between hardness (H) and elastic modulus (E) with structural features such as porosity (P) are analyzed for several mesoporous systems. Additionally, tribological and fractomechanical features are assessed.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Liliana Maldonado, Santiago E. Herrera, Federico J. Williams, Mario Tagliazucchi
Summary: This study demonstrates that fluctuations in barrier thickness can result in systematically underestimated tunneling decay coefficients, leading to incorrect assumptions about long-range electron tunneling.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
M. Jazmin Penelas, Gustavo F. Arenas, Fernando Trabadelo, Galo J. A. A. Soler-Illia, Sergio E. Moya, Paula C. Angelome, Cristina E. Hoppe
Summary: In this study, monodisperse silica-coated gold nanoparticles were synthesized to obtain aqueous colloidal dispersions with an optimal balance between colloidal stability and photothermal activity. The presence of a silica shell not only enhanced the photothermal effect but also controlled the optical properties of the colloidal dispersions, making them highly valuable for biomedical therapies, sensing applications, and other technological applications.
Article
Multidisciplinary Sciences
Agustin D. Pizarro, Claudio L. A. Berli, Galo J. A. A. Soler-Illia, Martin G. Bellino
Summary: The authors demonstrate the use of nanoporous surfaces to create stimuli-responsive droplet interactions that exhibit shape transformation and complex behaviors similar to living cells.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Ayelen F. Crespi, Paula N. Zomero, Veronica M. Sanchez, Ana L. Perez, Carlos D. Brondino, Daniel Vega, Enrique Rodriguez-Castellon, Juan M. Lazaro-Martinez
Summary: This study describes the synthesis of two copper soluble complexes for the activation of hydrogen peroxide and the generation of reactive oxygen species. By combining various experimental and computational methods, the chemical structure of the ligands and metal ions was studied in detail. The results showed that the copper complexes were effective for the activation of H2O2 and only generated hydroxyl as the reactive oxygen species. These complexes can efficiently remove dyes.
Article
Polymer Science
Sebastian Alberti, Juan Giussi, Omar Azzaroni, Galo J. A. A. Soler-Illia
Summary: Manipulation and understanding of molecular transport across functionalized nanopores can lead to the design of high-performance selective separation systems. In this study, Surface-initiated atom transfer radical polymerization (SI-ATRP) was carried out on mesoporous silica and mesoporous titania thin films, and the filled pores were confirmed. The ion permeability was found to depend on the properties of the inorganic scaffolds and the polyelectrolyte.
Article
Electrochemistry
Alvaro Y. Tesio, Walter Torres, Matias Villalba, Federico Davia, Maria del Pozo, Daniel Cordoba, Federico J. Williams, Ernesto J. Calvo
Summary: The oxygen reduction reaction (ORR) on Au electrodes was investigated in DMSO at different Li+ concentrations. It was found that disproportionation of lithium superoxide Li+O2- into Li2O2 and O-2 led to an increasing fraction of very reactive singlet oxygen (O-1(2)) at high lithium concentration, which was identified as the major cause of parasitic reactions in Li-O-2 batteries.
Editorial Material
Chemistry, Physical
Galo J. A. A. Soler-Illia, Marco Faustini, Luis M. Liz-Marzan
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Cynthia C. Fernandez, Federico J. Williams
Summary: In this work, the metalation, transmetalation, and demetalation reactions of protoporphyrin (PPIX) molecules attached to self-assembled monolayers (SAM) grown over Au(1 1 1) surfaces at the solid/liquid interface were studied. It was found that the metalation degree is greater for Cu2+ than for Zn2+ when the molecules attached to the SAM are immersed in Cu2+ or Zn2+ containing solutions. Additionally, the partial exchange of Zn ions with Cu ions at the porphyrin central cavity was observed when ZnPPIX molecules attached to the SAM were in contact with a Cu2+ solution, indicating the favored insertion of Cu2+ over Zn2+ in accordance with the solution chemistry of the molecules. Moreover, Zn and CuPPIX molecules attached to the amino terminated SAMs showed greater stability against demetalation in acidic conditions, possibly due to the competing protonation of the amine terminal groups. These findings are important for the design of porphyrin-based molecular devices exposed to liquid interfaces.
INORGANICA CHIMICA ACTA
(2023)
Review
Chemistry, Multidisciplinary
Maria L. Scala-Benuzzi, Sol N. Fernandez, Gustavo Gimenez, Gabriel Ybarra, Galo J. A. A. Soler-Illia
Summary: Electrochemical sensors are increasingly important in medicine, environmental monitoring, and industrial process control. However, their development faces challenges such as low target compound concentrations and complex analytical matrices. Mesoporous Thin Films (MTFs) have attracted great interest as electrode modifications due to their high surface area, uniform pore distribution, and electrochemical signal modulation possibilities. To fully exploit the advantages of MTFs, reproducible methods for sensitive and selective MTF-modified electrodes need to be developed, and mass and charge transport processes within the film and on the electrode need to be understood.
Article
Chemistry, Multidisciplinary
Sebastian Alberti, Sonja Schmidt, Simone Hageneder, Paula C. Angelome, Galo J. A. A. Soler-lllia, Philipp Vana, Jakub Dostalek, Omar Azzaroni, Wolfgang Knoll
Summary: Nanopores have various applications in biocatalysis, drug delivery, and sensing devices. The interaction between biomacromolecules and surfaces is influenced by nanopore diameter, which is important for their infiltration into porous materials. We present a novel approach for synthesizing large-pore mesoporous silica thin films (MTF) through supramolecular templating and phase separation using block copolymers. The tunability of pore size distribution is achieved through reversible addition-fragmentation chain transfer (RAFT) polymerization.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Priscila Vensaus, Rolando M. Caraballo, Emiliano Tritto, Cynthia C. Fernandez, Paula C. Angelome, M. Cecilia Fuertes, Federico J. Williams, Galo J. A. A. Soler-Illia, Luis M. Baraldo
Summary: This work reports the deposition of Prussian blue (PB) and its cobalt analogue (CoPBA) on mesoporous titania thin films using the successive ionic layer adsorption reaction technique. A bifunctional ligand was used to functionalize the titania surface and promote the growth of PB and CoPBA. The resulting nanocomposites showed good electroactive properties and water oxidation capabilities.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)