Article
Chemistry, Multidisciplinary
Stef A. H. Jansen, Elisabeth Weyandt, Tsubasa Aoki, Takayoshi Akiyama, Yoshimitsu Itoh, Ghislaine Vantomme, Takuzo Aida, E. W. Meijer
Summary: Complexity in supramolecular polymer systems is caused by interactions between different components, including solvent molecules. This study reveals that both thermally bisignate and dilution-induced assembly phenomena in multicomponent systems are driven by the same underlying interaction mechanism. By investigating the interaction between amide-decorated supramolecular polymers and aliphatic alcohols, the temperature-dependency and dominance of the interaction at high monomer concentrations were unveiled. These insights allow for the control and manipulation of supramolecular polymer systems, opening the door to building complex and functional structures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Beatriz Matarranz, Goutam Ghosh, Ramesh Kandanelli, Angel Sampedro, Kalathil K. Kartha, Gustavo Fernandez
Summary: The role of conjugation length on the self-assembly properties of OPEs was unraveled through the investigation of a series of OPEs of increasing size.
CHEMICAL COMMUNICATIONS
(2021)
Article
Polymer Science
Takafumi Aizawa
Summary: The Carbon dioxide (CO2)-assisted polymer compression method is used to plasticize and crimp polymer fibers. The degree of plasticization is crucial for this method. In this study, heat treatment was applied to obtain fibers with different degrees of crystallinity. The compression degree and hardness were compared using two types of sheets. The Young's modulus of porous polymers in the presence of CO2 varies significantly with slight differences in crystallinity, highlighting the importance of low crystallinity for polymer plasticization by CO2.
Article
Chemistry, Multidisciplinary
Qi-Zhi Zhong, Joseph J. Richardson, Ai He, Tian Zheng, Rene P. M. Lafleur, Jianhua Li, Wen-Ze Qiu, Denzil Furtado, Shuaijun Pan, Zhi-Kang Xu, Ling-Shu Wan, Frank Caruso
Summary: By employing a co-assembly strategy with quinone and polyamine building blocks, we have developed a method to precisely control the structure and properties of coatings on various materials, including thickness, adhesion, wettability, and zeta potential. The properties of the films can be tuned by increasing the length of the amine building blocks, and the films can be post-functionalized to form diverse nanostructures for various applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Gautier Duroux, Lucas Robin, Peizhao Liu, Emilie Dols, Matheus De Souza Lima Mendes, Sonia Buffiere, Elodie Pardieu, Antoine Scalabre, Thierry Buffeteau, Sylvain Nlate, Reiko Oda, Maria Sara Raju, Matteo Atzori, Cyrille Train, Geert L. J. A. Rikken, Patrick Rosa, Elizabeth A. Hillard, Emilie Pouget
Summary: This study aims to explore the strategy of inducing chirality to achiral magnetic molecules for the preparation of magneto-chiral objects. The results showed that electrostatic or covalent surface grafting of the porphyrin molecules resulted in low induced circular dichroism (ICD), while incorporating the porphyrins into the interior of the double-walled helices yielded a moderate response. Drop-casting the porphyrin molecules onto the immobilized helices on a quartz plate resulted in a stronger and more variable ICD response. The patterns of aggregation and their influence on ICD and magnetic circular dichroism (MCD) were interpreted using electronic spectroscopy, electron microscopy, and IR spectroscopy. Except for the free base tetra-(4-sulfonatophenyl)porphyrin (TPPS), no enhancement of MCD was observed in the nanohelices, possibly due to spectral mismatch between the ICD and MCD peaks.
Article
Chemistry, Multidisciplinary
Xiao-Yun Yan, Qing-Yun Guo, Zhiwei Lin, Xian-You Liu, Jun Yuan, Jing Wang, Haomin Wang, Yuchu Liu, Zebin Su, Tong Liu, Jiahao Huang, Ruimeng Zhang, Yicong Wang, Mingjun Huang, Wei Zhang, Stephen Z. D. Cheng
Summary: By assembling T-shaped amphiphiles, polymeric molecular frameworks with good solution processability and thermal stability were successfully constructed, revealing their internal structure and demonstrating great potential in scalable fabrications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Lan Yang, Jiangbin Su
Summary: In this study, Cu nanostructures were fabricated and self-assembled by reducing Cu2+ complexes in a mixed aqueous solution. It was found that controlling the types of Cu2+ complexes is crucial for the fabrication and self-assembly of Cu nanostructures. This method provides a controllable and universal approach for the fabrication and self-assembly of Cu nanostructures, showing potential applications in electronic and optoelectronic nanodevices.
Article
Chemistry, Multidisciplinary
Jian-Cai Liu, Jie-Fei Wang, Qing Han, Ping Shangguan, Lu-Lu Liu, Li-Juan Chen, Jun-Wei Zhao, Carsten Streb, Yu-Fei Song
Summary: The study demonstrates how the aggregation of giant molecular metal oxide superstructures can be driven using organotin and lanthanide cations, with detailed structural analysis. Initial biomedical tests show inhibitory effects of the compound on cancer cell proliferation, indicating potential applications in cancer treatment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Sandra Kroell, Kersten S. Rabe, Christof M. Niemeyer
Summary: This study reports a rational re-engineering of the genetically fusible SNAP-tag linker, resulting in increased coupling efficiency with benzylguanine-modified oligonucleotides and DNA origami nanostructures. The novel linker, combined with another efficient oligonucleotide binding tag, allowed orthogonal assembly of an enzyme cascade on DON, showing higher activity than free solubilized enzymes. This connector system and the validation methods used represent important tools for further developing multienzyme systems based on DNA origami nanostructures.
Article
Chemistry, Physical
Karan Gulati, Mateusz Czerwinski, Marta Michalska-Domanska, Ruben Del Olmo Martinez
Summary: This review discusses and details the influence of electrolyte aging in Ti anodization on the fabrication of controlled nanostructures, as well as its impact on the morphology, chemistry, stability, and application-specific performance of nanostructures.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Polymer Science
Jinyan Song, Xiaowei Mo, Xin Liu, Binbin Hu, Zeyu Zhang, Zhilin Yu
Summary: Bio-inspired design of peptides using methylation of arginine allows for the controllable self-assembly of peptides, demonstrating the potential of arginine methylation in establishing controllable peptide assembling systems and creating in situ formulation of biomedical materials in the future.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Ruslan R. Kashapov, Yuliya S. Razuvayeva, Svetlana S. Lukashenko, Syumbelya K. Amerhanova, Anna P. Lyubina, Alexandra D. Voloshina, Victor V. Syakaev, Vadim V. Salnikov, Lucia Y. Zakharova
Summary: The combined method of photodynamic therapy and chemotherapy for treating malignant neoplasms shows great promise. This study investigates the properties of a supramolecular system based on TSPP and LaSurf in an aqueous medium. The complexes can assemble into nanostructures capable of binding anticancer drugs and their stability and drug binding ability can be controlled by adjusting the molar ratio and concentration of the components.
Article
Chemistry, Multidisciplinary
Arlin Rodriguez, Dhanush Gandavadi, Johnsi Mathivanan, Tingjie Song, Bharath Raj Madhanagopal, Hannah Talbot, Jia Sheng, Xing Wang, Arun Richard Chandrasekaran
Summary: The programmable nature of DNA allows the construction of custom-designed static and dynamic nanostructures. However, the high concentrations of magnesium ions required for assembly restrict their applications. In this study, we investigate the assembly of DNA nanostructures in various ions and successfully assemble a majority of these structures in Ca2+, Ba2+, Na+, K+ and Li+. We also find that structures assembled in monovalent ions exhibit significantly higher nuclease resistance compared to those assembled in divalent ions.
Article
Chemistry, Multidisciplinary
Goutam Ghosh, Ranajit Barman, Anurag Mukherjee, Uttam Ghosh, Suhrit Ghosh, Gustavo Fernandez
Summary: This study reports the diverse morphological and conformational versatility of a biologically active peptide (PEP-1), which can form up to six distinct nanostructures and up to four different secondary structures through subtle modulation in pH, concentration, and temperature. PEP-1 also shows high biocompatibility, low hemolytic activity, and marked antibacterial activity, making it a promising candidate for multiple bio-applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Yuxiang Dong, Jiliang Liu, Xuanzhao Lu, Jialin Duan, Liqi Zhou, Lizhi Dai, Min Ji, Ningning Ma, Yong Wang, Peng Wang, Jun-Jie Zhu, Qianhao Min, Oleg Gang, Ye Tian
Summary: Self-assembly processes are important for fabricating complexly organized nanomaterials, but often limited in creating structures with multiscale order. In this study, a two-stage assembly strategy is introduced to successfully form complexly organized nanoparticle crystals.
Article
Chemistry, Multidisciplinary
Dennis Larsen, Michel Ferreira, Sebastien Tilloy, Eric Monflier, Sophie R. Beeren
Summary: This study utilizes a native cyclodextrin glucanotransferase (CGTase) to drive the dynamic system of cyclodextrins (CDs), incorporating unnatural glucopyranose-derived building blocks. By controlling the relative concentrations of modified glucopyranoses, modified CDs can be accessed.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Guillaume Hoyez, Cyril Rousseau, Jolanta Rousseau, Sebastien Saitzek, Anne Ponchel, Eric Monflier
Summary: A series of isoreticular zirconium-organic frameworks based on UiO-66 family were synthesized through a co-modulated hydrothermal method, with alpha-cyclodextrin being used to modulate the textural properties of the analogues. The systematic study showed that the addition of alpha-CD to the reaction mixture can significantly impact the properties of UiO-66 Zr-MOFs.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mona Alleshagh, Samahe Sadjadi, Hassan Arabi, Naeimeh Bahri-Laleh, Eric Monflier
Summary: In this study, a novel chitosan-based catalyst was designed for the hydrofinishing of polyalphaolefins. The optimized reaction conditions resulted in a high yield of hydrogenated oil. The catalyst demonstrated heterogeneous nature and could be recovered and reused.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Review
Energy & Fuels
Claudia Prestigiacomo, Martina Biondo, Alessandro Galia, Eric Monflier, Anne Ponchel, Dominique Prevost, Onofrio Scialdone, Sebastien Tilloy, Rudina Bleta
Summary: This study successfully fabricates SnO@gamma-Al2O3 composites with tuneable pore size and well-defined octahedral-shape crystal structure using a molecular-colloidal coassembly approach combined with an ultrasonic-assisted precipitation method. The cooperative action of the supramolecular template and gamma-Al2O3 nanoparticles plays a critical role in the growth and orientation of SnO microcrystals and ultimately determines their catalytic performance in ester exchange reactions.
Article
Chemistry, Multidisciplinary
Antonio Madureira, Sebastien Noel, Bastien Leger, Anne Ponchel, Eric Monflier
Summary: The hydrogenation of vegetable oil-derived compounds using ion-exchange resin-supported ruthenium nanoparticles has been achieved for the first time. These catalysts show high efficiency, low metal loading, and excellent recyclability, and exhibit remarkable catalytic activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Walid Hamza Saadaoui, Cecile Machut, Sebastien Rio, Sandra Bigot, Vincent Wiatz, Eric Monflier, Anne Ponchel
Summary: The direct conversion of glucose to 5-hydroxymethylfurfural was investigated using phosphated niobium oxide-carbon catalysts in a biphasic system. A facile approach for generating Nb-based composites with high metal loadings (around 20%) was developed through hydrothermal carbonization, calcination, and H3PO4 adsorption. Catalysts were characterized through various techniques, and NbP@C-RB30 and NbP@C-RB15 prepared using oligosaccharides and low water volumes exhibited higher efficiency for HMF production.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Applied
Abdelghani El Mouat, Taha El Assimi, Mustapha Raihane, Jeremy Ternel, Herve Beicout, Eric Monflier, Sebastien Tilloy, Mohammed Lahcini
Summary: In this study, hyperbranched poly(epsilon-caprolactones) were synthesized and used as coating materials for slow-release DAP fertilizer. The prepared polymers (SFO-O-g-PCL) were confirmed by NMR and FTIR analysis. The coated DAP fertilizer granules showed a significant decrease in the release of P2O5 compared to the uncoated DAP fertilizer. This research opens up possibilities for the production of biodegradable coating agents using hydrophobic polyesters and bio-based oils.
PROGRESS IN ORGANIC COATINGS
(2023)
Editorial Material
Multidisciplinary Sciences
Anne Ponchel, Eric Monflier
Summary: This article comments on a recent study on the selective recovery of gold through a hierarchical host-guest assembly specifically built from beta-CD.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiao Wang, Mengfan Wang, Bastien Leger, Anne Ponchel, Lei Bai
Summary: The NiCo2O4-ZnO-Co3O4-/N-C micro-cage was successfully synthesized by calcination of the precursor obtained from a hollow ZIF-8/ZIF-67 with nickel nitrate. The composition and structure of the composites were investigated to illustrate the preparation process involving ion exchange and leaching. The presence of NiCo2O4-Co3O4-ZnO/N-C showed more efficient degradation of BPA in the presence of persulfate, indicating a sevenfold increase in the apparent reaction rate. Further electrochemical analysis confirmed that the electron transfer was more easily achieved in the BPA-PDS-NiCo2O4-Co3O4-ZnO/N-C system. The enhanced activity of NiCo2O4-Co3O4-ZnO/N-C was attributed to its hollow structure, synergistic effect of NiCo2O4, and smaller size of the active species, which facilitated molecule and ion transport as well as PDS activation.
INORGANIC CHEMISTRY
(2023)
Article
Engineering, Environmental
Dario Lacalamita, Guillaume Hoyez, Chiara Mongiovi, Anne Ponchel, Nadia Morin-Crini, Cyril Rousseau, Christophe Loup, Jolanta Rousseau, Marina Raschetti, Eric Monflier, Vincent Placet, Gregorio Crini
Summary: In recent years, there have been numerous studies on the use of metal organic frameworks (MOFs) to remove contaminants from aqueous solutions. However, little is known about using MOFs as adsorbents for the removal of fluoride ions from real effluents. In this study, a highly porous MOF, UiO-66-NH2, was used for the final treatment of complex discharge waters containing fluoride ions. The batch experiments showed that the MOF exhibited high adsorption capacities for fluoride ions, effectively reducing their concentrations in the effluent.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Thomas Roth, Rebecca Evertz, Niklas Kopplin, Sebastien Tilloy, Eric Monflier, Dieter Vogt, Thomas Seidensticker
Summary: Aqueous hydroaminomethylation (HAM) is a Green process for the efficient production of amines from basic chemicals. In this study, a continuous process for HAM in an aqueous multiphase system was successfully established. By adding randomly methylated-beta-cyclodextrin as a mass transfer agent, high yields and selectivities were achieved in several continuous experiments. The addition of cyclodextrin made it unnecessary to use solvents.
Article
Chemistry, Multidisciplinary
Chryslain Becquet, Michel Ferreira, Herve Bricout, Baptiste Quienne, Sylvain Caillol, Eric Monflier, Sebastien Tilloy
Summary: Jojoba oil ester was functionalized with alcohol groups via hydrohydroxymethylation catalyzed by a Rh/amine system. Under optimized conditions, a full conversion and a 99% yield of alcohol products were achieved. The catalytic system could be recycled at least 10 times without significant loss of activity. The hydrohydroxymethylated products were successfully used as monomers for the synthesis of a new biobased polyurethane with good thermal and mechanical properties.
Article
Polymer Science
Cedric Decarpigny, Anne Ponchel, Eric Monflier, Rudina Bleta
Summary: Surface modification is crucial for the production of highly efficient and stable enzymatic nanoreactors. This study investigates the impact of various functional groups on the catalytic performance of lipase B from Candida antarctica (CALB) in a supramolecular hydrogel. Results show that different functional groups have different effects on the catalytic activity and stability of CALB. Additionally, the use of cationic cross-linked beta-CD as an enzyme-stabilizing agent enhances the operational stability of the biocatalyst. These findings suggest that the supramolecular silicified hydrogel monoliths with hierarchical porosity have potential applications in biocatalytic continuous flow processes.