Article
Nanoscience & Nanotechnology
Scott C. McCormick, Namid Stillman, Matthew Hockley, Adam W. Perriman, Sabine Hauert
Summary: This study presents a new method for observing the transport dynamics of nanoparticles through tissue-mimetic microfluidic chips, demonstrating the size-dependence of nanoparticle penetration depth and the impact of the presence of microparticles on this process.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Article
Materials Science, Multidisciplinary
Raju Kumar Sharma, Gobinda Dey, Pritam Banerjee, Jyoti Prakash Maity, Chung-Ming Lu, Shau-Chun Wang, Yi-Hsun Huang, Pin-Yun Lin, Yung-Ping Chen, Chien-Yen Chen
Summary: This study investigated the synthesis of mesoporous silica nanoparticles using four different surfactants. The outcomes showed that Tween-80 and biosurfactant produced interesting results compared to CTAB and SDS-mediated silica nanoparticles.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Breno R. Barrioni, Sandhra M. de Carvalho, Parichart Naruphontjirakul, Elizabeth Norris, Nicole L. Kelly, John V. Hanna, Julian R. Jones, Marivalda de M. Pereira
Summary: Novel monodispersed spherical dense BGNPs with a diameter of 92 nm and cobalt as the pro-angiogenic ion were obtained using a modified Stober method. The controlled release of Co2+ ions in culture media indicated the great potential of these materials as intracellular ion delivery systems with therapeutic properties. The study confirmed the presence of Co2+ species and the role of Co and Ca as network modifiers in the silica glass through various analytical techniques.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Oimang Borang, S. Srinath, S. N. Kaul, Y. Sundarayya
Summary: This study reports the synthesis of homogeneous single-phase nanoparticles of RCrO4 and RCrO3 compounds using a modified sol-gel hydrothermal method. The different crystal structures and magnetic properties of RCrO4 and RCrO3 were determined through annealing and magnetization analysis.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Anithadevi Sekar, Ramanan Vadivel, Ramanujam Ganesh Munuswamy, Rakhi Yadav
Summary: The study introduces a new fingerprint visualizing agent, the biocompatible zinc oxide-carbon dots/silica gel (C-ZnO-dots/Si) nanopowder, which is low-cost and non-toxic. Results show that the synthesized nanopowder performs well in LF identification and can extract features of Level 1-3.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Mohammad Amin Farahmand Nejad, Saba Ranjbar, Claudio Parolo, Emily P. Nguyen, Ruslan Alvarez-Diduk, Mohammad Reza Hormozi-Nezhad, Arben Merkoci
Summary: Electrochromic materials have the unique property of changing coloration under electrochemical stimulation, leading to their application in various technologies. Recently, they have gained attention in the (bio)sensing community for their ability to combine sensitivity with intuitive readout. EC-based sensors are on the rise, already successfully detecting targets such as cancer biomarkers, bacteria, metabolites, and pesticides.
Article
Chemistry, Inorganic & Nuclear
Hui Dan, Li Chen, Zhen Li, Xinmiao He, Yi Ding
Summary: Amorphous ZrO2 powders were successfully prepared using a novel hydrothermal-assisted sol-gel method. The obtained powders exhibited features of small and uniform particle size, as well as high purity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Hamnesh Mahajan, Shammi Kumar, Anjori Sharma, Ibrahim Mohammed, Manisha Thakur, Amarjeet Kaur, A. K. Srivastava
Summary: Sol-gel methodology was used to produce Mn0.3Co0.2Zn0.5Fe2O4 ferrite nanoparticles at different sintering temperatures. XRD, FTIR, FESEM, EDX, VSM, and electrochemical studies were conducted to analyze the properties of the synthesized specimens. The results showed the formation of spinel structure, agglomerated grains, stoichiometry confirmation, enhanced saturation magnetization with higher sintering temperature, and higher specific capacitance for Mn0.3Co0.2Zn0.5Fe2O4 (1150 degrees C).
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Yudong Wang, Shangjie Ge-Zhang, Pingxuan Mu, Xueqing Wang, Shaoyi Li, Lingling Qiao, Hongbo Mu
Summary: Wood has gained extensive attention in architecture, furniture, and other fields for its environmental friendliness and excellent mechanical properties. Inspired by the wetting model of lotus leaves, researchers have developed superhydrophobic coatings with strong mechanical properties and durability on modified wood surfaces. Various methods, such as sol-gel, etching, graft copolymerization, and layer-by-layer self-assembly, have been used to prepare superhydrophobic surfaces, which find application in biology, textiles, defense, and military industries. However, current methods for preparing superhydrophobic coatings on wood surfaces have limitations in reaction conditions and process control, resulting in low efficiency and insufficiently fine nanostructures. The sol-gel process offers a simple, cost-effective, and easily controlled method for large-scale industrial production of superhydrophobic coatings. This paper summarizes the research progress on wood superhydrophobic coatings, focusing on the sol-gel method with silicide as an example, and discusses different acid-base catalysis processes for preparing superhydrophobic coatings on wood surfaces. The latest developments in sol-gel-based superhydrophobic coatings at home and abroad are reviewed, and the future development of superhydrophobic surfaces is discussed.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Maksymilian Plata-Gryl, Roberto Castro-Munoz, Grzegorz Boczkaj
Summary: Efficient adjustment of reduced graphene oxide aerogels properties requires understanding of the relationship between experimental factors and aerogel properties. In this study, the effects of precursor concentration, gelation time, and hydrogel freezing temperature on the surface and textural functionalities of reduced graphene oxide aerogels were investigated with the use of gaseous organic probes and experimental design. The results showed that precursor concentration and hydrogel freezing temperature had the strongest influence on the textural properties, with a negative correlation with apparent surface area. The findings can be applied to tailor reduced graphene oxide aerogels for specific applications such as adsorption or catalysis.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Tengyu He, David G. Bradley, Ming Xu, Shu-Ting Ko, Baiyan Qi, Yi Li, Yong Cheng, Zhicheng Jin, Jiajing Zhou, Lekshmi Sasi, Lei Fu, Zhuohong Wu, Jingcheng Zhou, Wonjun Yim, Yu-Ci Chang, John Hanna, Jian Luo, Jesse Jokerst
Summary: Inorganic nanomaterials show promise in theranostics, but their non-degradability limits their translation. We developed degradable PEI/calcium phosphate micro/nano-composites inspired by the biosilicification process in diatoms. These composites exhibit versatile sizes and morphologies without causing cell cytotoxicity.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Lena Meyniel, Cedric Boissiere, Natacha Krins, Sophie Carenco
Summary: In this study, thin films of lanthanide oxysulfide were developed that are compatible with flexible substrates and retain the robustness advantages of inorganic compounds. The films, made using a low-temperature dip coating method, maintained the optical quality of the materials. The thickness of the films could be adjusted in a wide range, and thermal treatment was optimized to remove organic ligands while preserving the integrity of the nanoparticles.
Article
Materials Science, Multidisciplinary
Amit Kumar, Piyush K. Patel, K. L. Yadav, Yogendra Singh, Naveen Kumar, Abdullah, G. Sharma, Satyendra Singh
Summary: The effect of grain boundary resistance (G(BR)) and grain resistance (G(R)) on the magnetoelectric coupling in multiferroic composite thick films of BiFeO3 (BFO) nanocrystalline powder and poly vinylidene-fluoride (PVDF) polymer is significant. The study shows that grain boundary resistance plays an important role in strengthening the magnetoelectric effect in the BFO-PVDF system, with the BFO50 sample demonstrating promising results for device and sensor applications.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Violeta Purcar, Valentin Raditoiu, Florentina Monica Raduly, Alina Raditoiu, Simona Caprarescu, Adriana Nicoleta Frone, Cristian-Andi Nicolae, Mihai Anastasescu
Summary: Fluorinated silica materials were prepared through sol-gel processing to achieve antireflective and hydrophobic fluorinated hybrid films. The structure and surface properties of these films were investigated, showing good thermostability and low reflectance.
Review
Chemistry, Multidisciplinary
Chun Xu, Chang Lei, Yue Wang, Chengzhong Yu
Summary: Dendritic mesoporous silica nanoparticles have attracted attention due to their wide applications, but the terminology used is ambiguous. This review provides a critical analysis of reported dendritic silica nanoparticles according to their structural classification, updating the understanding of their formation mechanisms and the control of structural parameters. The review also focuses on the applications of dendritic mesoporous nanoparticles in the biomedical field, offering new insights into the structure-property relationship.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Biochemistry & Molecular Biology
Santiago Oviedo-Rouco, Cecilia Spedalieri, Magali F. Scocozza, Florencia Tomasina, Veronica Tortora, Rafael Radi, Daniel H. Murgida
Summary: Cytochrome c is a multifunctional protein that shuttles electrons in the mitochondrial respiratory chain, with conformational transitions leading to alternative functions crucial for apoptosis. Physicochemical parameters characterizing electron transfer and conformational transitions are strongly correlated and modulated by local electric fields. Optimal electron shuttling occurs at moderate local electric field strengths, while deviations from this optimal range favor alternative conformations and functions.
BIOELECTROCHEMISTRY
(2022)
Article
Materials Science, Ceramics
Diego Onna, Maria Claudia Marchi, Maria Luz Martinez Ricci, Sara A. Bilmes
Summary: This study proposes the use of mesoporous oxides (MPO) films as nanoreactors for the immobilization and confinement of hazardous cations in e-waste. By controlling various reaction parameters, the MPO films can effectively remove dissolved cations in water and alcohols, while also forming a nanostructure for future design.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Estelle Palierse, Sylvie Masse, Guillaume Laurent, Patrick Le Griel, Gervaise Mosser, Thibaud Coradin, Claude Jolivalt
Summary: This study compared two methods, adsorption and in situ incorporation, for preparing hybrid polyphenol/hydroxyapatite nanoparticles. The results showed that adsorption of polyphenols on pre-formed nanoparticles did not change their properties, while in situ incorporation inhibited hydroxyapatite formation but resulted in higher loadings. Most hybrid particles exhibited a burst effect followed by slow release over time.
Review
Chemistry, Multidisciplinary
Clemence Sicard
Summary: Enzyme immobilization is a method to enhance enzyme stability and re-usability. In this study, researchers successfully encapsulated enzymes within covalent organic frameworks, demonstrating high enzyme loading, catalytic activity, and stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Xavier Kesse, Clemence Sicard, Nathalie Steunou, Jean-Pierre Mahy, Remy Ricoux
Summary: A new biocatalyst MP8@MIL-101(Cr/Fe) was synthesized by immobilizing Microperoxidase 8 (MP8) within MIL-101(Cr/Fe) metal-organic framework. The characterization of MIL-101(Cr/Fe) and MP8@MIL-101(Cr/Fe) was done using PXRD, FTIR spectroscopy, and TGA. The catalytic activity of MP8@MIL-101(Cr/Fe) for styrene oxidation using H2O2 and tBuOOH was investigated under different reaction conditions and compared to MP8 alone. MP8@MIL-101(Cr/Fe) showed approximately 3 times higher efficiency and approximately 50% selectivity for styrene oxide compared to MP8 alone.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Benjamin Le Ouay, Ryosuke Minami, Purna K. K. Boruah, Rin Kunitomo, Yuta Ohtsubo, Kohei Torikai, Ryo Ohtani, Cleimence Sicard, Masaaki Ohba
Summary: This study demonstrates the preparation of novel metal-organic polyhedra (MOPs) with anionic or cationic groups, which exhibit high affinity for proteins and can spontaneously form MOP-protein assemblies. The versatility of this method is illustrated using enzymes of different sizes and isoelectric points (pIs). The co-immobilization of cytochrome c with highly charged MOPs leads to a substantial increase in its catalytic activity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Robotics
Mouna Ben Salem, Laurent Petit, Muneeb Ullah Khan, Jeremy Terrien, Christine Prelle, Frederic Lamarque, Thibaud Coradin, Christophe Egles
Summary: In this paper, a concept of an implantable drug delivery device capable of delivering drugs in the duodenum for a long period of time is presented. The device aims to address therapeutic non-adherence, which is a major barrier to patients receiving the full benefits of their medications. The device is based on a miniature tubular linear actuator that can move at discrete positions inside a tube, and the research work primarily focuses on the actuator design and validation.
JOURNAL OF MICRO-BIO ROBOTICS
(2023)
Article
Engineering, Biomedical
Sophia Houari, Karen Derocher, Tran Thu Thuy, Thibaud Coradin, Vesna Srot, Peter A. van Aken, Helene Lecoq, Thierry Sauvage, Etienne Balan, Julie Aufort, Marco Calemme, Nicolas Roubier, Julia Bosco, Katia Jedeon, Ariane Berdal, Derk Joester, Sylvie Babajko
Summary: Developmental Defects of Enamel (DDE), such as Dental Fluorosis (DF) and Molar Incisor Hypomineralization (MIH), are a significant public health problem. This study used a combination of structural and chemical methods to compare and study MIH, DF, and healthy teeth from 89 patients. The results show that DF is characterized by a homogeneous loss of mineral content and crystallinity on the outer layer of enamel, while MIH is associated with localized defects in the depth of enamel. Minor differences in elemental composition were detected at the nanoscale. The study also proposes the use of colorimetric measurements for clinical diagnosis and improved restoration protocols. The findings contribute to a better understanding of DDE and provide insights for personalized dentistry.
ACTA BIOMATERIALIA
(2023)
Article
Instruments & Instrumentation
Cecilia Spedalieri, Julian Plaickner, Eugen Speiser, Norbert Esser, Janina Kneipp
Summary: The UVRR spectra of BSA and HSA proteins in aqueous solution were compared to distinguish between them despite their similar amino acid composition and structure. Tryptophan residues were detected despite their low abundance, and the dominant contribution from tryptophan, tyrosine, and phenylalanine was observed in the spectra. In the high-frequency region, the signals from overtones and combination bands of phenylalanine and tyrosine were clearly observed.
APPLIED SPECTROSCOPY
(2023)
Review
Chemistry, Physical
Nassima Kana, Kaouther Touidjine, Sarah Olivier-Archambaud, Effrosyni Gkaniatsou, Michael Paris, Nicolas Dupre, Nicolas Gautier, Philippe Moreau, Clemence Sicard, Bernard Lestriez, Thomas Devic
Summary: Silicon is a promising alternative to graphite for lithium-ion battery negative electrodes due to its high capacities. Coating silicon particles with metal-organic frameworks (MOFs) has shown improved electrochemical performance. However, a 20 nm thick layer of MOF on the surface of silicon particles did not result in significant modifications of the electrochemical performance in practical electrode loading conditions.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Polymer Science
Enguerran Devernois, Thibaud Coradin
Summary: Type I collagen and chitosan are commonly used biological macromolecules for tissue engineering scaffolds. While collagen is biocompatible and provides biochemical cues, it has poor mechanical properties. Chitosan, on the other hand, is more versatile but not a good substrate for mammalian cells. Combining these two biomacromolecules allows for the preparation of interesting biomaterials with improved properties. However, there is a lack of understanding regarding chitosan-type I collagen interactions.
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
Chemistry, Physical
Stephanie De Oliveira, Gregor Miklosic, Joelle Veziers, Sebastien Grastilleur, Thibaud Coradin, Catherine Le Visage, Jerome Guicheux, Matteo DEste, Christophe Helary
Summary: Collagen/hyaluronan composite hydrogels with physical properties suitable for biomedical applications can be synthesized by inhibiting the formation of polyionic complexes.
Review
Chemistry, Multidisciplinary
Cecilia Spedalieri, Janina Kneipp
Summary: This mini review discusses the progress of SERS probing in cells over the past years, exploring the biochemical composition of cells and the cellular processes involving biomolecules and cellular compartments. The combination of live cell SERS with various approaches has led to a better understanding of cellular physiology and the utilization of the selectivity of SERS.
