Organic nanofibers are formed by simple ionic co-assembly of positively charged porphyrin (electron donor) and negatively charged perylenediimide (electron acceptor) derivatives in aqueous solution. Two kinds of electron transfer routes between electron donor and electron acceptor under light excitation in nanofibers are confirmed by DFT calculations and experimental data.
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http://dx.doi.org/10.1002/smll.201302964 | DOI Listing |
Int J Mol Sci
December 2024
Department of Chemical Engineering, Barcelona East School of Engineering (EEBE), Polytechnic University of Catalonia, Av. Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain.
This study explores the characterization and application of poly(3-hydroxybutyrate--3-hydroxyvalerate) (PHBV) synthesized from organic residues, specifically milk and molasses. Six PHBV samples with varying 3-hydroxyvalerate (3HV) content (7%, 15%, and 32%) were analyzed to assess how 3HV composition influences their properties. Comprehensive characterization techniques, including NMR, FTIR, XRD, DSC, TGA, and tensile-stress test, were used to evaluate the molecular structure, thermal properties, crystalline structure, and mechanical behavior.
View Article and Find Full Text PDFChemSusChem
January 2025
Jilin University, School of Materials Science and Engineering, Renmin street 5988, School of Materials Science and Engineering, Jilin University, 130022, Changchun, CHINA.
Metal selenides hold promise as feasible anode materials for potassium-ion batteries (PIBs), but still face problems such as poor potassium storage kinetics and dramatic volume expansion. Coupling heterostructure engineering with structural design could be an effective strategy for rapid and stable K+ storage. Herein, CoSe/MoSe2 heterojunction encapsulated in nitrogen-doped carbon polyhedron and further interconnected by three-dimensional nitrogen-doped carbon nanofibers (CoMoSe@NCP/NCFs) is ingeniously constructed.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China. Electronic address:
Uncontrolled release of active agents in active packaging reduces antimicrobial efficacy, hindering the effective protection of perishable products from microbial infection. Herein, a novel defective engineering was proposed to design defective and hollow ZIF-8 structures grown on TEMPO oxidized cellulose nanofibrils (TOCNFs) and use them as fast-reacting nanocarriers for loading and controlled release curcumin (Cur) in sodium alginate (SA) active packaging systems (CZT-Cur-SA). By employing stable chelation between tannic acid (TA) and ZIF-8 zinc ions, the connections between zinc ions and imidazole ligands were severed to form a loose and hollow structure, which facilitates the rapid reaction and release of active ingredients triggered by pH changes in the microenvironment.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium.
Physical understanding and determination of different analytes without the need for advanced and additional equipment are highly important, which can be achieved by using stimuli-induced chromic materials. Physical and chemical incorporation of responsive chromophores into different polymers results in the fabrication of chromic polymers. Chromic electrospun nanofibers are prepared using the electrospinning technique, and their stimuli-responsivity is improved due to their high surface-to-volume ratio.
View Article and Find Full Text PDFSmall
January 2025
Xi'an Key Laboratory of Functional Organic Porous Materials, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China.
Self-assembly in supramolecular chemistry is crucial for nanostructure creation but faces challenges like slow speeds and lack of reversibility. In this study, a novel comb-like polymer poly(amide sulfide) (PAS) based on thiolactone chemistry is reported, which rapidly self-assemble into stable nanofibers, offering excellent robustness and reversibility in the self-assembled structure. The PAS backbone contains pairs of amide bonds, each linked to an alkyl side chain in a controlled 2:1 ratio.
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