Articles tagged with Supramolecular Chemistry
A study at Saitama University found that subtle changes in molecular structure can significantly affect aggregation and interfacial behavior of sugar-based surfactants. The researchers demonstrated that the sulfur oxidation state alters the relationship between aggregation in water and surface tension.
A team of scientists developed a chlorophyll-based supramolecular polymer that can gradually evolve from nonhelical fibers into well-defined helical structures. The transformation occurs cooperatively and is driven by small energy differences between stable arrangements, offering a blueprint for designing dynamic helical structures.
Researchers developed a platinum-based catalyst supported on oxygen-vacancy-rich cerium oxide (Pt/CeO2–Vo) to enhance hydrogen activation. The catalyst achieved a pyrrolidone yield of 95.2% within one hour, with high formation rates and excellent stability.
Researchers at Tokyo Metropolitan University have created a neutral molecule that can carry DNA into biological cells using a process called annealing. This breakthrough promises more effective therapies by reducing inflammation and improving delivery efficiency.
A KTU researcher's study explores how Nobel Prize-winning metal-organic frameworks (MOFs) can be produced reliably and consistently at an industrial scale. The analysis shows that with the right production methods, MOF manufacturing can be financially viable within a short period of time.
The B-STING silica nanocomposite acts as a nanofactory of reactive oxygen species, activating itself in response to changes in the chemical environment. This material can be used to create biocidal coatings that are safe, durable, and resistant to dirt, with potential applications in medicine and other industries.
Researchers have developed a new approach to suppressing the shuttle effect in transition metal fluoride cathodes, leading to unprecedented discharge plateau voltage and high-performance thermal battery cathodes. The study focused on thermal batteries and utilized an ion-sieving concept to achieve selective confinement.
The Organometallic Chemistry and Homogeneous Catalysis group develops multisensitive catalysts with switchable properties using naphthalene diimides and N-heterocyclic carbenes. This simplifies catalyst optimisation, enabling a single catalyst to facilitate various chemical transformations.
Scientists create a corralled supercooled liquid by controlling the number of stationary atoms within a liquid, leading to an unusual phase of matter. The discovery could revolutionize our understanding of catalysts and lead to the design of self-cleaning materials.
A new photocatalyst has been developed that significantly boosts the efficiency and stability of hydrogen peroxide generation under visible light. The catalyst, known as a TTT COF, achieves nearly 30 millimoles per gram per hour in aqueous solution, outperforming its imine-based precursor.
Researchers at Tohoku University have demonstrated a water-resistant and recyclable redox-active metal-organic framework (RAMOF) that can store electrons in acidic aqueous solutions. The breakthrough material shows high durability in an aqueous RAMOF-based rechargeable battery.
Researchers at University of Illinois have developed polymers that exhibit enhanced conductivity due to controlled chirality and chemical doping. The study found that structural chirality boosts the chemical reaction controlling doping in polymers, leading to higher conductivity.
Researchers in Japan have developed a supramolecular polymer system that can adaptively transform into different dimensional states depending on the intensity of light applied, revealing mechanisms behind these dynamic transformations using high-speed atomic force microscopy.
Scientists achieve on-demand reversible switching between dynamic covalent polymers and thermosetting polymers, integrating advantages of both types. The 'quench-activation' strategy enables material system to balance sustainability and thermal stability.
Scientists develop molecular strategies for creating soft materials that can sense, move, and evolve in response to their environment. Three key principles of supramolecular robotics enable programmed motility, phase transitions, and prototissue formation.
This study introduces a novel kinetic control strategy to modulate supramolecular dissociation kinetics, enabling the regulation of dissociation rates over a wide range. The researchers found that steric hindrance controls supramolecular dissociation kinetics and material properties, resulting in stable networks with improved mechanica...
Scientists at The University of Osaka developed a polymeric adhesive that can be reused repeatedly by introducing reversible bonds into the interface. This technology could improve manufacturing yield, reduce costs and minimize waste.
Researchers developed a novel organic framework that stably incorporates a chlorine halogen bond, exhibiting excellent chemical stability and thermal resistance. The framework exhibits superior catalytic performance in palladium-catalyzed coupling reactions and can be easily recovered and recycled.
Researchers engineered a nanoreactor cage with visible-light absorption to drive highly efficient photochemical reactions. The cage achieved perfect stereo- and site-selectivity in cross-[2 + 2] cycloaddition reactions, enabling catalytic transformations of chemically inert substrates.
Developed by Professors Yu and Gao, BNOSE exhibits excellent mechanical properties and efficient chemical recovery, breaking current bottlenecks in sustainable elastomers. Its unique boron-based dynamic bonds provide robust interchain forces and degradation in mild ethanol solvents.
Researchers designed chiral amphiphilic pillar[5]arene derivatives that spontaneously formed chiral toroidal nanostructures and Möbius strip-like nanorings through non-covalent interactions. The assembly process exhibited solvent-dependent evolution, resulting in structure-dependent luminescent properties.
Researchers designed chiral amphiphilic pillar[5]arene derivatives to form stable chiral toroidal nanostructures and Möbius strip-like nanorings through non-covalent interactions. The assembly process exhibits solvent-dependent evolution, controlling luminescent properties and enabling the creation of functional chiral nanomaterials.
Researchers at UNIST developed a platform to engineer moiré systems with customizable length scales, enabling precise control over electronic properties. The study introduces quasiperiodic patterns with potential to subtly influence electron behavior.
Scientists create a new class of mechanochromic mechanophores that can detect and respond to mechanical stress in polymeric materials through fluorescence. The developed molecule exhibits excellent stress-sensing with high durability, offering a powerful tool for real-time monitoring of mechanical damage.
Scientists have developed a novel CT-ICT system that utilizes a pyrazinacene derivative to facilitate reversible color-changing properties. The system, which co-crystallizes with naphthalene, demonstrates a dramatic color shift from greenish-blue to red-violet.
Researchers successfully constructed a large molecular spherical shell structure with the geometric topology of a regular dodecahedron through entanglement of peptides with metal ions. The resulting M60L60 metal-peptide shell exhibits remarkable stability against heat, dilution, and oxidative conditions, making it a promising platform ...
The study successfully manipulated the formation of left-handed or right-handed helical aggregates using precise light control, exhibiting promising insights into novel functional materials. The researchers found that residual aggregates acted as nucleation sites forming oppositely directed helical assemblies under certain conditions.
A new study by researchers at the Institute of Science Tokyo hints that calcium ions played a crucial role in shaping life's earliest molecular structures. The team discovered that calcium dramatically alters how tartaric acid molecules link together, favoring homochiral polymers and potentially influencing the emergence of life.
A team of researchers has developed a molecular system that enables the controlled release of iron, using a carbon nanohoop and ferrocene as the iron carrier. The system allows for the release of Fe2+ ions upon activation with green light.
Researchers have developed a supramolecular delivery system that integrates bakuchiol with an ionic liquid, enhancing its anti-aging efficacy while minimizing redness and itching. The breakthrough increases the permeability of bakuchiol by 4.17 times, promoting collagen synthesis and exerting anti-aging effects on the skin.
Researchers visualized the dynamic shuttling of α-CD rings along a PEG chain in real time, revealing localized structural changes. The study introduces a new method for analyzing supramolecular polymers and could pave the way for energy-efficient molecular motors.
Research team develops a new design strategy to enhance efficiency, stability, and stretchability of polymer solar cells. The discovery uses a three-dimensional aromatic-core tethered tetrameric acceptor, achieving significant improvements in performance and durability.
Australian scientists have identified the origin of the restoring force in elastic crystals, allowing for the design of new hybrid materials. The study found that energy is stored in molecular interactions under compressive and expansive strain, enabling the crystal to return to its original shape.
A recent study found that polyester microdroplets can form in salt-rich environments, at low alpha-hydroxy acid concentrations, and in small reaction volumes. This expands on previous research and suggests that polyester protocells were likely more common on early Earth than previously thought.
Researchers developed a novel cyclic molecule that selectively traps phosphate species through multi-point hydrogen bonding in harmony with water molecules. The findings provide guidelines to design new cyclic molecules for aqueous environments, significant for materials development.
Researchers developed chlorophyll-based structures with controlled hierarchical stacking, mimicking natural photosynthetic systems. The study demonstrates the potential for creating materials that surpass natural capabilities in efficiency and adaptability.
Researchers at Maynooth University are leading a two-year study to develop non-abrasive bandages that can be sprayed onto the skin and melted away painlessly. The goal is to reduce the agony experienced by those living with Epidermolysis Bullosa, a genetic skin condition affecting over 500,000 children and adults worldwide.
Researchers have developed a simple model system to break down fibrils into their constituent single units or liquid droplets. This discovery has the potential to treat neurodegenerative diseases such as Alzheimer's and Parkinson's by targeting pathological fibrils.
Researchers developed a sustainable, high-performance material suitable for packaging and biomedical devices by exploiting the mechanical properties of cellulose nanofibres. Adding small peptides improves their mechanical performance and water-resistance.
Scientists developed a novel method to create colloidal molecules with specific symmetry using fluorescent polymers and self-assembly. The process allows for the formation of soft materials with various symmetries depending on the polymer mixing ratio.
A new approach to lyotropic chromonic liquid crystal assembly has been developed using charged π-electronic molecules. The assembled materials exhibit optical anisotropy, magnetic susceptibility, and temperature-dependent orientation, enabling the design of materials with specific properties.
Scientists have created an artificial motor that converts chemical energy into rotational energy at the supramolecular level, mimicking the movement of primitive bacteria. The new development has potential applications in nanorobots for detecting tumor cells and could lead to innovative medical treatments.
A team of researchers has developed a new membrane material that can detect and remove pharmaceutical chemicals from water at trace levels. The new approach uses a polymer membrane with an interconnected network of pores, which are designed to capture larger molecules, allowing for more effective filtration.
A recent study developed a new folded supramolecular polymer that spontaneously undergoes interchain aggregation, exhibiting potential applications in stimuli-responsive materials. The research team used atomic force microscopy to demonstrate the relationship between unfolding and aggregation.
Researchers from Tokyo University of Science created a novel mechanical motif, double-helical monometallofoldamers, with controllable chiral switching properties. The new molecule can undergo inversion switching in response to external stimuli, paving the way for novel high-order molecular systems and molecular information processing.
Researchers at TUM discovered a mechanism that enables double-stranded RNA molecules to form and remain stable in the primordial soup. This discovery has significant implications for understanding the origin of life and could lead to breakthroughs in medicine, particularly in vaccine development.
Scientists at Yokohama National University have developed a novel approach to create dual-pore molecular crystals with two distinct functionalities. By using quasi-racemates, the researchers achieved social self-sorting of two pairs of quasi-racemates to form ring-shaped molecules with varying pore sizes.
Researchers at Ritsumeikan University enhance solid-state phosphorescence in organoplatinum(II) complexes by 75 times through anion binding and ion-pairing with countercations. The strategy isolates π-electronic molecules, improving luminescent properties and extending emission lifetime.
Researchers at Politecnico di Milano have designed a hydrogel with specific characteristics using supramolecular chemistry and crystallography. The study showed that the interactions between an amino acid and bioactive molecules can be identical in both solid and aqueous states.
Scientists created a supramolecular machine that efficiently converts azobenzenes to their metastable conformation using visible light. The approach, inspired by the deep-sea fish vision system, overcomes limitations of traditional photoswitchable molecules.
Researchers have developed a novel supramolecular memristor based on bistable [2]catenanes, which can achieve high-density storage and non-volatile memory capabilities. The memristors demonstrated at least 1000 erase-read-write cycles and switching times comparable to commercial inorganic memristors.
The team created a proof-of-concept nanocapsule capable of delivering specific payloads to targeted locations, with potential applications in drug delivery, nutrient transport, and other fields. By using calcium metal ions as building blocks, they can generate identical reservoirs for different substances.
Scientists have successfully imaged electronic molecular orbitals of single molecules, revealing superatom molecular orbitals suitable for electron transport in organic electronics. This breakthrough imaging technique will facilitate studying structural changes and reactions of molecules.
A team of researchers from Japan has developed hemoCD-Twins, a synthetic porphyrin compound that acts as an antidote for both carbon monoxide and hydrogen cyanide poisoning. In mouse models, the compound resulted in an 85% survival rate and rapid recovery with low toxicity.
Researchers developed an eco-friendly porous polymer material that removes phenolic organic contaminants and microplastics from water at ultra-high speeds. The material can be reused multiple times without losing performance, making it a promising solution for efficient water purification.
Researchers have created a chemical compound, Pillar[6]MaxQ (P6AS), which can counteract the effects of fentanyl and methamphetamine in lab experiments. The compound works as a molecular container, binding to drugs and reversing their biological properties.
Researchers discover circular polycatenanes with properties similar to DNA rings, showcasing a connection between local and global properties. These structures have unique elastic properties and can be used in designing new materials and micro-sensors.
Researchers have successfully segregated oppositely helical supramolecular polymers in a solution using audible sound, inducing surface vibrations and advection currents. This approach allows for the spatiotemporal control of chiral supramolecular systems, enabling the segregation of multiple aggregates.
Scientists at Tokyo Institute of Technology create novel self-complementary macrocycles with high control over assembly, using a dual interaction system that incorporates hydrogen bonding and π-π interactions. The resulting structures have potential applications in optical and electronic functions.