Diazonium Salts for the Preparation of Carbon Composites with a Focus on Applications of Carbon Fibers

Stanfield, Melissa K.; Henderson, Luke C.

doi:10.1007/978-3-031-04398-7_21

Aryl Diazonium Salts and Related Compounds

2022

DOI: 10.1007/978-3-031-04398-7_21

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Diazonium Salts for the Preparation of Carbon Composites with a Focus on Applications of Carbon Fibers

Melissa K. Stanfield

Luke C. Henderson

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Cited by 2 publications

References 30 publications

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Biomedical Applications of Electro‐Initiated Polymerisation on Ti6Al4 V Titanium Alloy using Silk Fibroin Coatings for Antibiotic Delivery and Improved Cell Metabolism

Emonson,

Dharmasiri,

Gordon

et al. 2023

ChemPlusChem

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Silk fibroin interactions with metallic surfaces can provide utility for medical materials and devices. Toward this goal, titanium alloy (Ti6Al4 V) was covalently grafted with polyacrylamide via electrochemically reducing 4‐nitrobenzene diazonium salt in the presence of acrylamide. Analysis of the modified surfaces with FT‐IR spectra, SEM and AFM were consistent with surface grafting. Functionalised titanium samples with a silk fibroin membrane, with and without impregnated therapeutics, were used to assess cytocompatibility and drug delivery. Initial cytocompatibility experiments using fibroblasts showed that the functionalised samples, both with and without silk fibroin coatings, supported significant increases between 72–136 % in cell metabolism, compared to the controls after 7 days. A 7‐days release profiling showed consistent bacterial inhibition through gentamicin release with average inhibition zones of 239 mm2. Over a 5‐week period, silk fibroin coated samples, both with and without growth factors, supported better human mesenchymal stem cell metabolism with increases reaching 1031 % and 388 %, respectively, compared to samples without the silk fibroin coating with.

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Biomedical Applications of Electro‐Initiated Polymerisation on Ti6Al4 V Titanium Alloy using Silk Fibroin Coatings for Antibiotic Delivery and Improved Cell Metabolism

Emonson,

Dharmasiri,

Gordon

et al. 2023

ChemPlusChem

Self Cite

View full text Add to dashboard Cite

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Hierarchical Polyimide‐Covalent Organic Frameworks Carbon Fiber Structures Enhancing Physical and Electrochemical Properties

Coia,

Dharmasiri,

Hayne

et al. 2024

Small Structures

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The multifunctionality of carbon fiber (CF) is being extensively explored. Herein, polyimide covalent organic frameworks (PI‐COFs) are grafted bound to CF to enhance their mechanical and electrochemical properties. Here, a range of COF scaffolds are grafted to the surface of CFs via a two‐step functionalization. First, melamine is tethered to the fiber surface to provide an anchoring point for the COFs followed by a “graft from” approach to grow three different sized PI‐COFs utilizing three differently sized dianhydride, PMDA to form MA‐PMDA, NTCDA to form MA‐NTCDA, and PTCDA to form MA‐PTCDA COFs. These COFs increase the capacitance of CF by a maximum of 2.9 F g−1 (480% increase) for the MA‐PTCDA, this coincides with an increase in interfacial shear strength by 67.5% and 52% for MA‐NTCDA and MA‐PTCDA, respectively. This data represents that the first‐time CF has been modified with PI‐COFs and allows access to COF properties including their porosity and CO2 capture ability while being attached to a substrate. This may lead to additional high‐value recyclability and second‐life applications for CFs.

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Diazonium Salts for the Preparation of Carbon Composites with a Focus on Applications of Carbon Fibers

Cited by 2 publications

References 30 publications

Biomedical Applications of Electro‐Initiated Polymerisation on Ti6Al4 V Titanium Alloy using Silk Fibroin Coatings for Antibiotic Delivery and Improved Cell Metabolism

Biomedical Applications of Electro‐Initiated Polymerisation on Ti6Al4 V Titanium Alloy using Silk Fibroin Coatings for Antibiotic Delivery and Improved Cell Metabolism

Hierarchical Polyimide‐Covalent Organic Frameworks Carbon Fiber Structures Enhancing Physical and Electrochemical Properties

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