A simple method for the synthesis of linear-chain diamond-like nanomaterials, so-called diamantane polymers, is described. This synthetic approach is primarily based on a template reaction of dihalogen-substituted diamantane precursors in the hollow cavities of carbon nanotubes. Under high vacuum and in the presence of Fe nanocatalyst particles, the dehalogenated radical intermediates spontaneously form linear polymer chains within the carbon nanotubes. Transmission electron microscopy reveals the formation of well-aligned linear polymers. We expect that the present template-based approach will enable the synthesis of a diverse range of linear-chain polymers by choosing various precursor molecules. The present technique may offer a new strategy for the design and synthesis of one-dimensional nanomaterials.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/anie.201504904 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Switching Photoluminescence Wavelength of Arylated Single-walled Carbon Nanotubes by Utilizing Steric Hindrance in Reductive Arylation.
Chemistry
January 2025
The University of Electro-Communications: Denki Tsushin Daigaku, Department of Engineering Science, JAPAN.
(6,5)-enriched single-walled carbon nanotubes (SWCNTs) were reductively arylated using sodium naphthalenide and monosubstituted and disubstituted iodobenzene derivatives to control their photoluminescence (PL) properties. In the reactions with substituted iodobenzenes, the degree of functionalization was influenced by the substituents on the aryl groups depending on their position, which allowed us to realize control of the PL intensity. The substituents at the 2-position and methyl groups at the 3,5-positions of the phenyl group respectively increased the E11** PL and E11* PL selectivity at ~1230 and ~1100 nm.
View Article and Find Full Text PDFSynthesis of Bovine Serum Albumin-Coated Magnetic Single-Walled Carbon Nanotubes as a Delivery System for Mitoxantrone.
ACS Omega
January 2025
Department of Chemical Engineering, Istanbul Technical University, Istanbul 34469, Türkiye.
In this study, a bovine serum albumin (BSA)-coated magnetic single-walled carbon nanotube (mCNT) was synthesized using covalent functionalization. Mitoxantrone (MTO) was chosen as a model drug, and loading/release profiles of mCNTs were evaluated. To synthesize BSA-coated mCNT, 1-ethyl-3-(3-(dimethylamino)propyl) carbodiimide and -hydroxysuccinimide were used as cross-linking agents.
View Article and Find Full Text PDFLight energy-driven carbonic anhydrase mediate CO sequestration system with variable-temperature adaptability.
Int J Biol Macromol
January 2025
College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an 710021, China. Electronic address:
The escalating atmospheric CO₂ concentration urgently demands ecologically friendly mitigation strategies. Compared to alternative catalysts, carbonic anhydrase (CA) demonstrates exceptionally high catalytic efficiency in CO₂ hydration reactions. Nevertheless, traditional CA immobilization techniques exhibit peak enzymatic activity exclusively at optimal temperatures, consequently constraining their effective application across diverse environmental thermal conditions in industrial settings.
View Article and Find Full Text PDFTwo-dimensional ZIF-L derived dual Fe/FeN sites for synergistic efficient oxygen reduction in alkaline and acid media.
J Colloid Interface Sci
January 2025
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070 China; Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170 Thailand. Electronic address:
Fe-N-C catalysts have emerged as the most promising alternatives to commercial Pt/C catalysts for oxygen reduction reaction (ORR) due to their cost-effectiveness and favorable activity. Herein, a dual-site Fe/FeN-NC catalyst was synthesized via a green, in situ doping strategy using two-dimensional Fe-doped ZIF-L as a nitrogen-rich precursor. The catalyst integrated Fe nanoparticles (NPs) and FeN sites anchored on carbon nanotubes, intertwined with nitrogen-doped porous carbon nanosheets, achieving a high active site density and graphitisation.
View Article and Find Full Text PDFInvestigating the impact of Multiwalled Carbon Nanotubes exposure on enzymatic activities and histopathological variations in Swiss albino mice.
Sci Rep
January 2025
Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia.
Present study was conducted to evaluate the detrimental impacts of exposure of Multi-walled Carbon Nanotubes (MWCNT-NP) on enzymatic activities and tissue structures in Swiss albino mice. The experimental groups of mice received MWCNT-NP for specific time period (seven or fourteen days). Two distinct doses of the MWCNT-NP solution were given orally: 0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!