Article
Chemistry, Inorganic & Nuclear
Vaishali Singh, Shubhra Kala, Tanmay Rom, Avijit Kumar Paul, Rampal Pandey
Summary: A new preparation method for a bidentate N,O-donor Schiff base fluorescent ligand and its complexes with Ni(ii) and Zn(ii) was illustrated. The structure of the ligand and one complex was determined by X-ray single crystal analysis. The ligand formed a mechanically stable Ni(ii)-gel, which exhibited reversible ON-OFF-ON fluorescence switching behavior in the presence of Zn2+, Cu2+ and Hg2+.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Solenn Riedel, Thomas Schweizer, Katrina Smith-Mannschott, Eric R. Dufresne, Guido Panzarasa
Summary: This study demonstrates the time-controlled sol-gel transition of a poly(vinyl alcohol)-iodine supramolecular complex through in situ generation of iodine with a clock reaction. The gelation time and mechanical properties of the resulting hydrogel can be tuned by properly selecting the clock parameters or through competitive iodine complexation.
Article
Chemistry, Physical
A. G. Kuchin, S. P. Platonov, A. Lukoyanov, A. S. Volegov, V. S. Gaviko, R. D. Mukhachev, M. Yu Yakovleva
Summary: The study found that the electronic structure of GdFe1-xTixSi intermetallic compounds changes with the increase of Ti content, resulting in a rapid growth of Curie temperature.
Article
Chemistry, Multidisciplinary
Jeanette N. Loos, Charlotte E. Boott, Dominic W. Hayward, Gabriel Hum, Mark J. MacLachlan
Summary: A class of amino acid-based low-molecular-weight gelators were used to study the tunable optical properties and self-assembly process of single and multicomponent gels. The optical properties of multicomponent gels were easily tuned by changing component proportions, with transparency attributed to changes in fiber diameters. The structural similarities of molecules in the gel phase favored coassembly packing over self-sorting, and molecular packing in the crystalline phase was found to translate into the gel network structure.
Article
Chemistry, Multidisciplinary
Rafael Contreras-Montoya, James P. Smith, Stephen C. Boothroyd, Juan A. Aguilar, Marzieh Mirzamani, Martin A. Screen, Dmitry S. Yufit, Mark Robertson, Lilin He, Shuo Qian, Harshita Kumari, Jonathan W. Steed
Summary: Pathway complexity results in the formation of unique materials from the same components according to assembly conditions. A gelator in this study forms three different gels with contrasting morphology and rheological properties. The formation of a hyperhelical gel involves association with a non-gelling conformer. This research demonstrates the importance of pathway complexity in self-assembly processes.
Article
Chemistry, Multidisciplinary
Rafael Contreras-Montoya, James P. Smith, Stephen C. Boothroyd, Juan A. Aguilar, Marzieh Mirzamani, Martin A. Screen, Dmitry S. Yufit, Mark Robertson, Lilin He, Shuo Qian, Harshita Kumari, Jonathan W. Steed
Summary: The pathway complexity results in the formation of unique materials from the same components according to the assembly conditions. In this study, a chiral acyl-semicarbazide gelator forms three different gels and lyotropic liquid crystalline droplets depending on the assembly pathway. The gels have distinct morphologies and rheological properties due to the different conformers of the gelator. The emergence of different materials with contrasting properties is attributed to the emergent interactions during the assembly process.
Article
Chemistry, Multidisciplinary
Bryce da Camara, Connor Z. Woods, Komal Sharma, Hoi-Ting Wu, Naira S. Farooqi, Changwei Chen, Ryan R. Julian, Douglas A. Vander Griend, Richard J. Hooley
Summary: Spacious M4L6 tetrahedra can act as catalytic inhibitors for base-mediated reactions by increasing the acidity of the reaction solvent, resulting in a reduced conversion rate of the conjugate addition reaction.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Chunyang Li, Anne-Doriane Manick, Jian Yang, David Givaudan, Bohdan Biletskyi, Sabine Michaud-Chevalier, Jean-Pierre Dutasta, Damien Herault, Xavier Bugaut, Bastien Chatelet, Alexandre Martinez
Summary: Chloroazaphosphatranes have been identified as a new class of halogen bond donors with modulable synthesis, showing comparable binding abilities to conventional iodine-based monodentate XB receptors and a relationship with the basicity of Verkade superbases. The strength of the XB interaction was revealed by the Delta delta(P-31) NMR shift observed in CD2Cl2 solution in the presence of triethylphosphine oxide (TEPO), expanding the repertory of XB motifs based on C-Ar-I bonds.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Wei Chen, Sufang Zhang, Tian Su, Yuanjun Nie, Juan He, Pengchong Xue, Junhui Jia
Summary: In this study, carbazole-based vinyl-benzoxazole derivatives were synthesized to investigate whether X-ray diffraction (XRD) simulation can provide more information about intermolecular stacking in gel phases. It was found that the gelation capabilities of these compounds strongly depended on the length of the alkyl chain. Shorter alkyl chains resulted in lower critical gelation concentrations (CGCs) in nonpolar alkane and alcohols with longer carbon chains, while long alkyl chains exhibited small CGCs in polar methanol. Powder XRD structure solution offered more insights into intermolecular stacking than the traditional method of analyzing diffraction peaks. The results confirmed the presence of similar head-to-tail π-stacking between aromatic groups in the gel phases, with different slipping angles, as well as ordered stacking between the alkyl chains.
Article
Biochemistry & Molecular Biology
Anca Petran, Teodora Radu, Monica Dan, Alexandrina Nan
Summary: The interest in polymers with high thermal conductivity has increased due to their inherent properties and potential applications. This research focused on developing polymers with high thermal conductivity by enzyme-catalyzed polymerization. The results showed a significant increase in thermal conductivity compared to thermal polymerization.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Harshil Thakkar, Twara Kikani, Sonal Thakore
Summary: In this study, a urea linked supramolecular Low Molecular Weight Organogelators (OG) was proposed for efficient phase selective recovery of aromatic chlorinated solvents. The gelation was induced rapidly by sonication, and effective self-assembling was observed in the presence of a variety of chlorinated solvents. Practical application for the recovery of the solvents was demonstrated by phase selective gelation studies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Applied
Jie Liu, Zhimei Lei, He-Lue Sun, Yu Chen, Xin Zhang, Li-Juan Xing, Haitao Yu
Summary: The efficient combination of urea and Schiff-base bifunctional derivatives led to satisfactory gelation capacity and fluorescent sensing behaviors towards Zn2+. Among the derivatives, MG exhibited the best Zn2+ selectivity and enabled visual detection at cellular level via gel-sol transition. The assembly performances of these derivatives during gel formation were markedly different due to the various locations of urea and imine moieties.
Article
Chemistry, Multidisciplinary
Milan Gumtya, Sahabaj Mondal, Santosh Kumar, Olamilekan Joseph Ibukun, Debasish Haldar
Summary: The study investigates in detail the self-assembly, organogelation, syneresis, and anti-adhesion properties of a peptidomimetic containing L-phenylalanine and 2,6-dimethylpyridine 3,5-dicarboxylic acid. The material forms a transparent gel in aromatic solvents, showing significant self-healing characteristics and syneresis-induced anti-adhesion properties.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
H. Yu, Y. Hong, X. Zeng, J. Wei, F. Wang, M. Liu
Summary: Inspired by the multilevel reconstruction effect of natural pollen, a g-C3N4 nanoring with abundant heteroatoms doping, porous hollow structure, and high surface area was constructed for efficient photocatalytic degradation of methyl orange. The added pollen can reconstruct g-C3N4 at both the atomic scale (heteroatom doping) and macroscopic scale (from irregular bulk to nanoring) under the dual action of hydrothermal reaction and heat treatment. The optimized g-C3N4 nanoring exhibits high photocatalytic activity for methyl orange, with a degradation rate of 95.5% after 120 min.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Physical
Mohiuddin Mohammed, Rajan Deepan Chakravarthy, Hsin-Chieh Lin
Summary: Self-assembled peptide hydrogels have shown promising biomedical applications due to their non-toxic nature and similarity to the extracellular matrix. In this study, we demonstrated the self-assembly of peptide hydrogels with different nanostructures and mechanical properties by adding metal ions. These hydrogels exhibited excellent biocompatibility and could be used to control the specific cell functions of stem cells.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
M. P. Conte, N. Singh, I. R. Sasselli, B. Escuder, R. V. Ulijn
CHEMICAL COMMUNICATIONS
(2016)
Article
Chemistry, Multidisciplinary
Marta Tena-Solsona, Jayanta Nanda, Santiago Diaz-Oltra, Agata Chotera, Gonen Ashkenasy, Beatriu Escuder
CHEMISTRY-A EUROPEAN JOURNAL
(2016)
Article
Chemistry, Multidisciplinary
Marco Araujo, Santiago Diaz-Oltra, Beatriu Escuder
CHEMISTRY-A EUROPEAN JOURNAL
(2016)
Review
Chemistry, Multidisciplinary
Nishant Singh, Mohit Kumar, Juan F. Miravet, Rein V. Ulijn, Beatriu Escuder
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Article
Chemistry, Multidisciplinary
Jenifer Rubio-Magnieto, Marta Tena-Solsona, Beatriu Escuder, Mathieu Surin
Article
Chemistry, Multidisciplinary
Marco Araujo, Beatriu Escuder
Article
Chemistry, Multidisciplinary
Rosa Marti-Centelles, Beatriu Escuder
Article
Biochemistry & Molecular Biology
Barbara Gimenez-Hernandez, Eva Falomir, Beatriu Escuder
Summary: Combining polymers and low molecular weight compounds can produce new supramolecular materials. The addition of hyaluronic acid to the materials reduces polymorphism and improves mechanical properties of the low molecular weight network, resulting in reproducible hydrogels. These materials have potential for biomedical applications.
Article
Chemistry, Multidisciplinary
Samrat Das Adhikari, Andres F. Gualdron Reyes, Subir Paul, Jeevan Torres, Beatriu Escuder, Ivan Mora-Sero, Sofia Masi
Summary: Perovskite nanocrystals (PeNCs) synthesized by colloidal solution methods have unique optical features, such as a tuneable band gap and narrower photoluminescence emission compared to their bulk counterpart. However, their stability needs to be improved for application in optoelectronic devices. This can be achieved by stabilizing the PeNC phases and passivating the surface using alternative methods, such as combining them with organic or inorganic materials. This perspective discusses the challenges, opportunities, and potential applications of core/shell PeNCs, as well as the synthesis steps and optical properties.
Article
Nanoscience & Nanotechnology
Rosa Marti-Centelles, Irene Dolz-Perez, Jaciel De la O, Imelda Ontoria-Oviedo, Pilar Sepulveda, Vicent J. Nebot, Maria J. Vicent, Beatriu Escuder
Summary: Transdermal drug delivery is an advantageous approach, but the high impermeability of the stratum corneum presents challenges. A two-component molecular hydrogel platform for transdermal delivery of (S)-naproxen was developed, with promising results shown in terms of drug permeation and localized delivery. The study demonstrates an efficient method for enhancing drug delivery through the skin using this hydrogel platform.
ACS APPLIED BIO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Rosa Marti-Centelles, Jenifer Rubio-Magnieto, Beatriu Escuder
CHEMICAL COMMUNICATIONS
(2020)
Article
Materials Science, Biomaterials
Marta Tena-Solsona, Domenico Marson, Ana C. Rodrigo, Stephen M. Bromfield, Beatriu Escuder, Juan F. Miravet, Nadezda Apostolova, Erik Laurini, Sabrina Pricl, David K. Smith
BIOMATERIALS SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Nishant Singh, Beatriu Escuder
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Article
Polymer Science
Mario Llusar, Beatriu Escuder, Juan de Dios Lopez-Castro, Susana Trasobares, Guillermo Monros
Article
Chemistry, Multidisciplinary
Nishant Singh, Chandan Maity, Kai Zhang, Cesar A. Angulo-Pachon, Jan H. van Esch, Rienk Eelkema, Beatriu Escuder
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Article
Chemistry, Organic
Faiza Diaba, Gisela Trenchs
Summary: The first violet light-mediated synthesis of gamma- and delta-lactams from N-alkenyl trichloroacetamides is reported in this paper. The reactions are conducted in tetrahydrofuran or 2-methyltetrahydrofuran as the sole solvent without catalysts or additives, under non-anhydrous conditions in an air atmosphere where the solvent serves as the radical initiator.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Feroze Hussain, Sajjad Ahmed, Ashiq Hussain Padder, Qazi Naveed Ahmed
Summary: This study reports a novel and efficient one-pot synthesis method for mixed phosphorotrithioates, which does not require supplementary additives and shows broad applicability.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Hyunjin Oh, Ikyon Kim
Summary: A new 1,2,4-triazole-pyrrolo[1,2-a]pyrazine hybrid system, 6-acylpyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine, was synthesized using a catalyst-free method. This method involved sequential exposure of pyrrole-2-carbonitrile-derived substrates to DMF-DMA and acyl hydrazide, resulting in the formation of acylated pyrazine and 1,2,4-triazole rings, enabling the installation of various substituents at specific positions on the core skeleton.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Ming Yan, Si-fan Wang, Yong-po Zhang, Jin-zhong Zhao, Zhuo Tang, Guang-xun Li
Summary: Here we developed an efficient photocatalytic approach for the convenient preparation of sulfinamides. The reaction allows for the gram-scale preparation of sulfinamides and the one-pot synthesis of various sulfonyl amides.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Farzaneh Bandehali-Naeini, Zahra Tanbakouchian, Noushin Farajinia-Lehi, Nicolas Mayer, Morteza Shiri, Martin Breugst
Summary: Two tandem catalytic systems were developed for the synthesis of novel 3,4-disubstituted maleimides using the same Ugi adducts. Different maleimide structures can be synthesized using either Pd or Cu catalysis.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Tanya Raghava, Anjan Chattopadhyay, Subhadeep Banerjee, Nivedita Sarkar
Summary: Amine substitution of two ortho fluorine atoms of tetrafluoroterephthalonitrile through SNAr chemistry is easily achievable. But further fluorine substitution is only possible under forcing conditions, yielding valuable fluorophores for bioimaging.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Review
Chemistry, Organic
Anju Chadha, Santosh Kumar Padhi, Selvaraj Stella, Sowmyalakshmi Venkataraman, Thangavelu Saravanan
Summary: Alcohol dehydrogenases are enzymes that use cofactors for oxidation or reduction reactions of alcohols or carbonyl compounds. They are utilized in green chemistry and have applications in the production of pharmaceuticals. Recombinant enzymes have solved the challenge of producing purified enzymes in large quantities. Engineered alcohol dehydrogenases have been used in asymmetric synthesis in industry. Various methods have been established for regenerating expensive cofactors to make the enzymatic process more efficient and economically viable.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
