Article
Materials Science, Multidisciplinary
Juan Hu, Ye Chen, Yan Zhang, Shikun Chen, Hong Chen, Jing Zhu, Ruili Lu, Nengcong Yang
Summary: We prepared g-C3N4/Ag/CoFe1.95Eu0.05O4 heterojunctions that effectively absorbed visible light and efficiently separated photogenerated electron-hole pairs. The kinetic constants of the Z-type heterojunctions gC3N4/Ag/CoFe1.95Eu0.05O4 in the degradation of methyl orange were significantly higher than those of gC3N4/Ag/CoFe1.95Eu0.05O4 and g-C3N4, indicating its potential in photocatalytic degradation of organic pollutants.
Article
Chemistry, Inorganic & Nuclear
J. Gajendiran, S. Gnanam, C. Parthasaradhi Reddy, G. Ramesh Kumar, V. C. Bharath Sabarish, S. Gokul Raj, K. Ramachandran, V. P. Senthil, V. Gopi
Summary: In this paper, BiFeO3, YMnO3, and BiFeO3-YMnO3 compounds were synthesized and their structural, morphological, and light absorption characteristics were compared for the first time.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Zhen Zhang, Zhifang Fei, Shuang Zhao, Wenhao Wu, Kunfeng Li, Guobing Chen, Zichun Yang
Summary: Researchers have prepared amine in-situ hybrid SiO2 aerogels with hierarchically porous structure, which overcome the limitations of high cost and low CO2 adsorption capacity in silica aerogels. The micropores constructed by the steric hindrance effect of long organic chain from bis[3-(triethoxysilyl)propyl]amine facilitate faster and more uptake of CO2. The obtained aerogels have high amine content, high specific surface area (up to 579.63 m2/g), and high pore volume, resulting in a fascinating CO2 capture ability of 6.57 mmol/g at 273 K, significantly higher than other silica-based aerogels.
Article
Materials Science, Multidisciplinary
J. Gajendiran, S. Gnanam, K. Ramachandran, V. C. Bharath Sabarish, A. Durairajan, M. P. F. Graca, M. A. Valente, S. Gokul Raj, G. Ramesh Kumar
Summary: Using the sol-gel route, a GdMnO3-GdMn2O5 nanocomposite was synthesized at 1000 degrees C. For the first time, Raman, magnetic, and dielectric measurements were taken of the synthe-sized composite under room temperature conditions. The results confirmed the formation of GdMnO3 and GdMn2O5, detected the presence of a bi-phase structure, and showed weak ferromagnetic behavior and temperature-sensitive dielectric properties in the synthesized composite.
Article
Materials Science, Multidisciplinary
Mallory Clites, Adam Blickley, David A. Cullen, Ekaterina Pomerantseva
Summary: In this study, a new Na-containing layered tungsten oxide phase, Na0.20WO3 center dot 0.81H(2)O, was successfully synthesized using a chemical preintercalation approach, and its excellent performance in different battery systems was demonstrated through electrochemical cycling experiments.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Z. A. A. Halim, M. A. Mat Yajid, N. Ahmad
Summary: The thermal degradation of mesoporous hydrated silica (MHS), mesoporous silica (MS), and alumina trihydrate (ATH) hybrid systems for flame retardant materials was investigated. The results show that MHS-ATH has higher thermal stability and a wider range of water release temperature, improving the flame retardancy effect compared to ATH.
Article
Materials Science, Multidisciplinary
Zhen Zhang, Shuang Zhao, Kunfeng Li, Zhifang Fei, Guobing Chen, Peng Zhang, Zichun Yang
Summary: In this study, hydrophobic and low-density silica-based gels were prepared using a self-catalyzed gelling process and ambient drying method. These gels have potential to be used as alternatives in cryogenic applications due to their reversible deformation, high failure strength, and low thermal conductivity at low temperatures.
Review
Materials Science, Multidisciplinary
Chengxiang Wang, Luyuan Zhang, Zhiwei Zhang, Ruizheng Zhao, Danyang Zhao, Renzhi Ma, Longwei Yin
Summary: This review provides a critical overview of the current progress on the use of layered materials as electrodes for batteries and supercapacitors, highlighting the application and improvement strategies of several typical layered materials, as well as the importance of nanosheet heterostructures and interlayer modification.
PROGRESS IN MATERIALS SCIENCE
(2021)
Article
Chemistry, Applied
Barbara Popanda, Jaroslaw Grolik, Wojciech Gieszczyk, Marcin Sroda
Summary: This study prepared a series of sol-gel hybrids using different acids, bases, solvents, and luminophore concentrations to immobilize zinc phthalocyanine. The immobilization was achieved by coordinating the zinc phthalocyanine with an isonicotinamide substituted by alkoxysilane. Hybrid materials of variable hydrophilicity were obtained by using siloxane precursors to optimize the conditions for phthalocyanine immobilization. The optical properties and photostability of the hybrids were investigated.
Article
Materials Science, Ceramics
Nina Velikova, Ivanka Spassova
Summary: Bifunctionalized mesoporous silica materials were successfully prepared by altering the sequence of addition of silanols, leading to improved texture and CO2 sorption capacity. The type of silsesquioxane precursors and the presence of isocyanurate groups also significantly influenced the material's texture, morphology, and CO2 sorption properties.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
Luiz Fernando de Sousa Lima, Nelcy Della Santina Mohallem
Summary: The study looked at the role of polyethylene glycol (PEG) in preparing monoliths with Nb2O5 nanoparticles in a silica matrix using the sol-gel process. The resulting monoliths showed high specific surface area and varying pore sizes, with transparent silica monoliths and translucent or opaque nanocomposites depending on the amount of PEG used. The nanocomposite with 3% PEG showed promise for flow catalysis or chromatographic columns due to spinodal decomposition induced by the interaction between the polymer and the niobium pentoxide precursor.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Polymer Science
Abubakar Katsina Usman, Diana-Luciana Cursaru, Gheorghe Branoiu, Raluca Somoghi, Ana-Maria Manta, Danuta Matei, Sonia Mihai
Summary: The study presents the preparation of anatase phase {001}-TiO2/Au hybrid nanocomposites using a sol-gel synthesis technique and investigates their photocatalytic activity. The characterization results demonstrate the structure and performance of the materials, showing promising photodegradation efficiencies under direct sunlight illumination.
Review
Chemistry, Multidisciplinary
Jingyuan Zhou, Zhaoyang Lin, Huaying Ren, Xidong Duan, Imran Shakir, Yu Huang, Xiangfeng Duan
Summary: 2D layered materials have strong in-plane covalent chemical bonding and weak out-of-plane van der Waals interactions, allowing for the insertion of guest species without breaking the in-plane bonds. Intercalation materials can be tailored for variable compositional and structural features, enabling property modulation and applications in various technologies. Various intercalation methods and their effects on the crystal structure and properties of host materials are discussed, along with future research opportunities and challenges in the field.
ADVANCED MATERIALS
(2021)
Article
Polymer Science
Hartina Mohd Yusop, Annur Isma Husna Mohd Ismail, Wan Norfazilah Wan Ismail
Summary: A new biopolymer-silica hybrid material composed of inulin and TEOS was successfully synthesized via sol-gel method for use as an adsorbent. Analysis using FTIR, EDX, FESEM, XRD, BET, and TGA confirmed the strong interaction between inulin and TEOS, optimal morphology and characteristics for absorption properties, mesoporous structure, and thermal stability of the composite material.
Review
Materials Science, Ceramics
Leandro Trupp, Maria Claudia Marchi, Beatriz C. Barja
Summary: Research on lanthanide-based luminescent hybrid silica materials has grown significantly in recent decades, with the sol-gel technique being one of the most powerful methods for achieving this goal. This review focuses on the commonly used strategies for inserting luminescent lanthanide(III) complexes into a silica host and their potential applications.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Niki Baccile, Thomas Zinn, Guillaume P. Laurent, Ghazi Ben Messaoud, Viviana Cristiglio, Francisco M. Fernandes
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Milena Lama, Francisco M. Fernandes, Alba Marcellan, Juliette Peltzer, Marina Trouillas, Sebastien Banzet, Marion Grosbot, Clement Sanchez, Marie-Madeleine Giraud-Guille, Jean-Jacques Lataillade, Bernard Coulomb, Cedric Boissiere, Nadine Nassif
Article
Chemistry, Physical
Kankan Qin, Corentin Eschenbrenner, Felix Ginot, Dmytro Dedovets, Thibaud Coradin, Sylvain Deville, Francisco M. Fernandes
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Biochemistry & Molecular Biology
Milena Lama, Biravena Raveendranathan, Julie Brun, Francisco M. Fernandes, Cedric Boissiere, Nadine Nassif, Alba Marcellan
Summary: This study focuses on the manipulation of collagen self-assembly in vitro, revealing its significant impact on the mechanical response of biological tissues. The involvement of suprafibrillar organization is crucial for modulus at early stage of deformations and tensile toughness, while mechanisms at the fibril level affect durability under cyclic loading and stress relaxation. By altering interfibrillar interactions through changes in physicochemical environment, more biomimetic mechanical responses can be achieved, offering new possibilities for tissue engineering.
MACROMOLECULAR BIOSCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Arto Merivaara, Jacopo Zini, Elle Koivunotko, Sami Valkonen, Ossi Korhonen, Francisco M. Fernandes, Marjo Yliperttula
Summary: Freeze-drying is commonly used to preserve protein drugs and vaccines in a dry form, but its application for natural biomaterials and cells still faces challenges. Through process thinking and advanced technology, more effective preservation of these biomaterials and cells can be achieved.
JOURNAL OF CONTROLLED RELEASE
(2021)
Article
Multidisciplinary Sciences
Cleo Parisi, Kankan Qin, Francisco M. Fernandes
Summary: Seeding living cells into materials is a promising approach to replicate the complexity and functionality of living matter. A two-dimensional map based on materials' pore size and cytocompatibility has been proposed as a guide to building cellularized materials, which may lead to the design of new materials capturing the complexity and function of biological materials.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Eduardo Ruiz-Hitzky, Cristina Ruiz-Garcia, Francisco M. Fernandes, Giulia Lo Dico, Lorenzo Lisuzzo, Vanessa Prevot, Margarita Darder, Pilar Aranda
Summary: This study reports the ability to generate highly viscous and stable hydrogels from ground sepiolite through sonomechanical irradiation, leading to comparable rheological properties to commercial products upon re-dispersion in water. These colloidal systems have the potential to stabilize diverse compounds and nano/micro-particles, enabling the production of a wide variety of composites and nano/micro-architectured solids.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Tafsir Chowdhury, Benjamin Cressiot, Cleo Parisi, Georges Smolyakov, Benedicte Thiebot, Lea Trichet, Francisco M. Fernandes, Juan Pelta, Philippe Manivet
Summary: Circulating tumor cells (CTCs) have potential as biomarkers for diagnosing, predicting and monitoring cancer, but their diagnostic utility is yet to be proven. The scarcity of CTCs in biological fluids makes it difficult to identify dangerous subpopulations that could lead to metastasis. This Perspective discusses promising techniques for identifying metastatic cells, including isolating patient-derived CTCs, using 3D biomimetic matrixes for their analysis, and analyzing CTCs at the single-cell and single-molecule levels. The article also explores the combination of mechanical and morphological analysis methods with biomarker identification techniques for more accurate diagnosis.
Article
Materials Science, Multidisciplinary
Anastasia Permyakova, Alshaba Kakar, Jonathan Bachir, Effrosyni Gkaniatsou, Bernard Haye, Nicolas Menguy, Farid Nouar, Christian Serre, Nathalie Steunou, Thibaud Coradin, Francisco M. Fernandes, Clemence Sicard
Summary: The mesoporous iron polycarboxylate MIL-100(Fe) was synthesized with the presence of Pseudomonas putida bacteria. The synthesis was done under green conditions, using pure aqueous media at 30 degrees C to ensure the integrity of the cell membrane. The resulting biohybrid showed a unique microstructure, with an exoskeleton encapsulating individual bacteria cell, suggesting strong interactions between the exopolysaccharides network and MOF precursors.
ACS MATERIALS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Kankan Qin, Rui F. P. Pereira, Thibaud Coradin, Veronica de Zea Bermudez, Francisco M. Fernandes
Summary: This study demonstrates the fabrication of three-dimensional porous silk foams as dermal patches for wound protection and controlled delivery of antibiotics. The silk foams exhibit good water wicking capacity, deformability, and antibacterial behavior. The method of reassembling natural materials as macroporous foams can be applicable to other multicomponent natural materials, playing a crucial role in applications involving controlled release of molecules and fluid transport.
ACS APPLIED BIO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Kankan Qin, Rui F. P. Pereira, Thibaud Coradin, Veronica de Zea Bermudez, Francisco M. Fernandes
Summary: Silk from Bombyx mori has a unique arrangement of its two major components, which provides mechanical and surface properties for protecting the moth during its vulnerable phase. By reshaping the silk fibers into macroporous foam structures, this study demonstrates the potential of using these silk foams as dermal patches for wound protection and controlled drug delivery. This method can be extended to other natural materials and play a crucial role in applications involving controlled release and fluid transport.
ACS APPLIED BIO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sarah Christoph, Pierre Barre, Bernard Haye, Thibaud Coradin, Francisco M. Fernandes
Summary: We present a new class of hybrid material composed of a polysaccharide macroporous core surrounded by a thin silica layer, which can be used as adsorption platforms for organic pollutants in soil. These hybrid materials showed structural stability and sorption capacity for organic pollutants significantly higher than the surrounding soils. They possess all the necessary properties to be effective materials for soil depollution and are easy to recover.
Article
Materials Science, Biomaterials
Cleo Parisi, Benedicte Thiebot, Gervaise Mosser, Lea Trichet, Philippe Manivet, Francisco M. Fernandes
Summary: Standard 2D cell cultures have limitations in reproducing the native cellular microenvironment, and researchers are turning to 3D materials that can better mimic this environment. This study reports a collagen material that can provide a more biomimetic 3D environment for cell growth and migration, leading to more realistic cell morphology.
BIOMATERIALS SCIENCE
(2022)
Review
Materials Science, Biomaterials
Kankan Qin, Cleo Parisi, Francisco M. Fernandes
Summary: Ice templating, originally used for shaping colloidal suspensions into lightweight ceramics, has evolved to fabricate materials mimicking biological tissues and now used for creating biomaterials containing living cells. This technique has progressed to cope with labile biological matter and may shape the future of 3D cell culture, tissue engineering, and cryobiology.
JOURNAL OF MATERIALS CHEMISTRY B
(2021)
Article
Chemistry, Applied
Z. Jaafar, B. Quelennec, C. Moreau, D. Lourdin, J. E. Maigret, B. Pontoire, A. D'orlandp, T. Coradin, B. Duchemin, F. M. Fernandes, B. Cathala
CARBOHYDRATE POLYMERS
(2020)
Article
Chemistry, Physical
Nadine J. Kanik, Artur Kuligiewicz, Jeffrey T. Cullen
Summary: This study examined the effects of different pre-treatments on the structural H-isotope composition of clay minerals. The results showed that different pre-treatments had varied impacts on different clay minerals, and the choice of pre-treatment should be based on the specific properties and mineralogy of the samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara
Summary: This study proposes Pickering emulsions based on wax and halloysite clay nanotubes for coating silk sutures to increase their loading capacity towards eosin. The presence of halloysite/wax microspheres on the surface of silk sutures has also been explored for controlled release of hydrophobic drugs. The influence of the coating on the thermal and mechanical properties of the sutures has been studied using various techniques. In conclusion, the wax/halloysite Pickering emulsions can successfully generate hydrophobic microdomains on the surface of silk sutures, leading to enhanced flexibility and improved loading capacity towards eosin.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Bruna F. Alves, Rita C. P. Nunes, Luiz C. Bertolino, Elizabete F. Lucas
Summary: Operational problems in the oil industry caused by the precipitation of paraffins can be prevented by using polymeric additives. This article evaluates the use of polymeric nanocomposites as pour point reducers in different types of crude oil and finds that they are more efficient than pure poly(ethylene-covinyl acetate) (EVA) in reducing the pour point. The nanocomposites also modify the wax crystals and reduce the viscosity of the oil samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
K. A. Daniels, C. C. Graham, A. C. Wiseall, J. F. Harrington, P. Sellin
Summary: Geological storage with clay buffer is widely preferred for removing hazardous radioactive waste. The impact of fluid salinity and void space on the swelling behavior of barrier bentonites was examined through experiments. The findings suggest that clay swelling is suppressed at higher salinities, which affects the void-filling process.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
N. Werling, A. Kuligiewicz, A. Steudel, R. Schuhmann, F. Dehn, K. Emmerich
Summary: Thermal treatment of clay minerals can be used to produce building materials and environmentally friendly binders. This process involves dehydration, dehydroxylation, breakdown of structure, and recrystallization of high temperature phases. Rehydration and rehydroxylation are important factors to consider for geopolymers and SCM.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Xuan Wang, Hao Ding, Zhuoqun Xu, Jianmeng Zhang, Yanbin Yao
Summary: Rutile nano-TiO2 was loaded onto the surface of sericite to prepare sericite-rutile composite particles, which were then modified with HDTMS and sprayed onto the substrates to form sericite-rutile/HDTMS composite coatings with UV shielding and superhydrophobic self-cleaning properties. The coating exhibited good UV shielding rate and remained superhydrophobic after UV irradiation. The hierarchical structure of the sericite-rutile composite and the low surface energy of HDTMS contributed to the superhydrophobicity and UV shielding effect of the coating.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Kailang Sun, Taojun Zhang, Jie Zhou, Yonghong Liu, Minfeng Zeng, Zhen Yang, Ruokun Feng, Xiaorong Ren, Peng Zhang, Baoyi Wang, Xingzhong Cao
Summary: Chitosan-Pd0 nano particles encapsulated in Al, Co-pillared montmorillonite nanocomposites were successfully synthesized using a facile one-pot heat treatment method. The Al, Co pillaring effectively expanded the surface area and generated numerous mesopores in the interlayer space of the MMt. The resultant nanocomposite exhibited similar high comprehensive catalytic performances as the one prepared by the regular divided-multistep method. The encapsulation of CS chains and doping of Co in the Al pillaring also contributed to the improved catalytic performance.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Nathalie Fagel, Isabel Israde-Alcantara, Reza Safaierad, Marttiina Rantala, Sabine Schmidt, Gilles Lepoint, Pierre Pellenard, Nadine Mattielli, Sarah Metcalfe
Summary: Environmental conditions significantly influence clay minerals, and studying clay sediments in tropical lakes can provide valuable insights into past environmental conditions. In this study, multiproxy records from sediment cores of three crater lakes in central Mexico were analyzed. The results showed that disordered kaolinite, formed through hydrolysis and hydrothermal alteration, was the predominant mineral in the sediments. The abundance of kaolinite varied in relation to organic carbon and organic matter-related elements, and showed opposite trends with lithogenic elements. Geochemical data suggested that the increase in kaolinite abundance is linked to the formation of organo-mineral aggregates and lake level changes in closed basins.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
M. J. Martin-Alfonso, A. Mejia, F. J. Martinez-Boza, P. Partal
Summary: The drilling industry is facing new challenges to develop eco-friendlier drilling fluids. Organic modified sepiolite dispersed in oil can be an excellent additive with suitable rheological properties. This study investigated the effect of alkyl ammonium modifiers on the microstructure and rheological properties of sepiolite-vegetable oil dispersions under high-temperature and high-pressure conditions.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Weiquan Zhan, Siyuan Yang, Shenxu Bao, Liuyi Ren, Cheng Liu
Summary: The interaction between talc and the depressor CMC was investigated through molecular dynamics simulation and density functional theory calculation. It was found that CMC showed stronger adsorption on the edge plane of talc due to enhanced interactions with polar groups and water molecules. The study also revealed specific interactions between H atoms in CMC and O atoms in the edge plane, as well as between O atoms in CMC and Si, Mg atoms in the edge plane. Hydration shells on the basal and edge planes of talc were examined to explain the phenomenon.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Pierre Dramou, Yiyang Sun, Xu Ni, Fangqi Wang, Hua He
Summary: In this study, a magnetic nanocomposite was prepared and used for the separation of rutin from real samples through magnetic solid phase extraction (MSPE). The nanocomposite exhibited high specific surface area, chemical and thermal stability, water solubility, and easy separation in aqueous solution. Characterization and experiments confirmed the successful synthesis and efficient enrichment ability of the nanocomposite.
APPLIED CLAY SCIENCE
(2024)