A5087089557- Supramolecular Self-Assembly in Materials
- Polydiacetylene-based materials and applications
- Covalent Organic Framework Applications
- Luminescence and Fluorescent Materials
- Advanced Polymer Synthesis and Characterization
- 2D Materials and Applications
- Photochromic and Fluorescence Chemistry
- Lipid Membrane Structure and Behavior
- Supramolecular Chemistry and Complexes
- Graphene research and applications
- Crystallography and molecular interactions
- Boron and Carbon Nanomaterials Research
- Enzyme Catalysis and Immobilization
- Microtubule and mitosis dynamics
- Pickering emulsions and particle stabilization
- MXene and MAX Phase Materials
- Molecular Sensors and Ion Detection
- Cellular Mechanics and Interactions
- Advanced Materials and Mechanics
- Metal-Organic Frameworks: Synthesis and Applications
Johannes Gutenberg University Mainz
2023-2024
Jawaharlal Nehru Centre for Advanced Scientific Research
2017-2022
Sukkur IBA University
2021
Multicomponent supramolecular copolymerization promises to construct complex nanostructures with emergent properties. However, even two monomeric components, various possible outcomes such as self-sorted homopolymers, a random (statistical) copolymer, an alternate or block copolymer can occur, determined by their intermolecular interactions and monomer exchange dynamics hence structural prediction is extremely challenging. Herein, we target this challenge demonstrate unprecedented...
Supramolecular block copolymerzation with optically or electronically complementary monomers provides an attractive bottom-up approach for the non-covalent synthesis of nascent axial organic heterostructures, which promises to deliver useful applications in energy conversion, optoelectronics, and catalysis. However, supramolecular copolymers (BCPs) constitutes a significant challenge due exchange dynamics non-covalently bound hence requires fine microstructure control. Furthermore, temporal...
Abstract Chirality‐driven self‐sorting is envisaged to efficiently control functional properties in supramolecular materials. However, the challenge arises because of a lack analytical methods directly monitor enantioselectivity resulting assemblies. Presented herein are two fluorescent core‐substituted naphthalene‐diimide‐based donor and acceptor molecules with minimal structural mismatch they comprise strong self‐recognizing chiral motifs determine process. As consequence, stereoselective...
Stereoselective and temporally controlled supramolecular polymerizations are ubiquitous in nature desirable attributes for the design of chiral, well-defined functional materials. Kinetically controlled, living polymerization (LSP) has emerged recently synthesis polymers with length narrow dispersity. On other hand, stringent requirements chiral-discriminating monomers precludes stereoselective control polymer structure. Herein, a synergetic stereo- structural by realization an unprecedented...
Bioinspired, kinetically controlled seeded growth has been recently shown to provide length, dispersity, and sequence control on the primary structure of dynamic supramolecular polymers. However, command over molecular organization at all hierarchical levels for modulation higher order structures polymers remains a formidable task. In this context, surface-catalyzed secondary nucleation process, which plays an important role in autocatalytic generation amyloid fibrils also during chiral...
Synthesis of supramolecular block co-polymers (BCP) with small monomers and predictive sequence requires elegant molecular design synthetic strategies. Herein we report the unparalleled synthesis tri-component BCPs tunable microstructure by a kinetically controlled sequential seeded polymerization fluorescent π-conjugated monomers. Core-substituted naphthalene diimide (cNDI) derivatives different core substitutions appended β-sheet forming peptide side chains provide perfect monomer spectral...
In a three-dimensional (3D) representation, each protein molecule displays specific pattern of chemical and topological features, which are altered during its misfolding aggregation pathway. Generating recognizable fingerprint from such features could provide an enticing approach not only to identify these biomolecules but also gain clues regarding their folding state the occurrence pathologically lethal misfolded aggregates. We report here universal strategy generate fluorescent by...
Fuel-driven dissipative formation of disulfide bonds using competing oxidative activation and reductive deactivation presents a possibly very versatile avenue for autonomous materials design. However, this is challenging to realize because the direct annihilation oxidizing fuel deactivating reducing agent. We overcome challenge by introducing redox-based enzymatic reaction network (ERN), enabling molecularly dissolved thiols in fully manner. Moreover, ERN allows programming hydrogel...
Implementing photoactivation into chemical reaction networks (CRNs) offers opportunities for on‐demand and remote activation, fuel storage, creating autonomous materials systems with precise spatial activation. However, examples in this domain remain limited. Here, we introduce a cascaded redox‐based enzymatic network (ERN) capable of photoinitiation refueling, centered around dissipative aromatic disulfide bond formation. To achieve photoinitiation, integrate an upstream module (EM) the...
Implementing photoactivation into chemical reaction networks (CRNs) offers opportunities for on‐demand and remote activation, fuel storage, creating autonomous materials systems with precise spatial activation. However, examples in this domain remain limited. Here, we introduce a cascaded redox‐based enzymatic network (ERN) capable of photoinitiation refueling, centered around dissipative aromatic disulfide bond formation. To achieve photoinitiation, integrate an upstream module (EM) the...
Synthesis of supramolecular block copolymers with tunable length and narrow dispersity is demonstrated <italic>via</italic> seed-induced living polymerization.
Abstract Stereoselective and temporally controlled supramolecular polymerizations are ubiquitous in nature desirable attributes for the design of chiral, well‐defined functional materials. Kinetically controlled, living polymerization (LSP) has emerged recently synthesis polymers with length narrow dispersity. On other hand, stringent requirements chiral‐discriminating monomers precludes stereoselective control polymer structure. Herein, a synergetic stereo‐ structural by realization an...
The pH-responsive nature of two self-assembled NDI-peptide amphiphile conjugates is reported. diethoxy substituted NDI showed a pH-dependent assembly behaviour, as expected. In contrast, the isopropylamino- and ethoxy-substituted based supramolecular polymer was stable at acidic basic aqueous conditions. This finding highlights how subtle changes in molecular design π-stacked chromophore-peptide have drastic impact on their equilibrium structure ultimately functional properties.
A novel supramolecular strategy based on host–guest chemistry has been proposed for the noncovalent functionalization of MoS2 nanosheets with organic chromophores. Stable ternary complexes are formed between benzyl imidazole functionalized and chromophores in presence cucurbit[8]uril host, resulting anchoring donor acceptor surface. On other hand, case graphene, we observe π–π stacking face-on organization chromophore The graphene hybrids have characterized by various spectroscopic...
An ATP-fueled DNA based enzymatic reaction network regulates transient co-assemblies of micron-scale colloids. The system produces minimal waste, shows ATP-dependent behavior, and can be reactivated for up to three consecutive cycles.
Abstract Synthesis of supramolecular block co‐polymers (BCP) with small monomers and predictive sequence requires elegant molecular design synthetic strategies. Herein we report the unparalleled synthesis tri‐component BCPs tunable microstructure by a kinetically controlled sequential seeded polymerization fluorescent π‐conjugated monomers. Core‐substituted naphthalene diimide (cNDI) derivatives different core substitutions appended β‐sheet forming peptide side chains provide perfect monomer...
van der Waals heterostructures formed by 2D materials have attracted much attention in the last few years. Recently, nanosheets linked covalent bonds been found to exhibit novel properties. In present study we investigated supramolecular layered of MoS2 with BC7 N, g-C3 N4 and graphene. These synthesized via a non-covalent host-guest synthetic design using cucurbit[8]uril (CB[8]) hosts. addition offering reversible disassembly, these show good visible-light-driven hydrogen evolution reaction...