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A Case of Application of Computer-Aided Design and Manufacturing Technology and Extended Reality Surgical Assistance to Marginal Mandibulectomy.
J Clin Med
December 2024
Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan.
Mandibular gingival squamous cell carcinoma (SCC) is the second most common oral cancer after tongue cancer. As these carcinomas often invade the mandible early, accurately defining the resection extent is important. This report highlights the use of preoperative virtual surgery data, computer-aided design and manufacturing (CAD/CAM) technology, surgical guidance, and extended reality (XR) support in achieving highly accurate marginal mandibulectomy without recurrence or metastasis.
View Article and Find Full Text PDFThiol-Ene Click Chemistry: A General Strategy for Tuning the Properties of Vinylene-Linked Covalent Organic Frameworks.
ACS Appl Mater Interfaces
January 2025
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China.
Article Synopsis
- Vinylene-linked Covalent Organic Frameworks (V-2D-COFs) are advanced materials known for their stable, crystalline structures and excellent optoelectronic properties, but their synthesis is limited due to challenges with C═C bonds.
- Postsynthetic modification (PSM) offers a solution by allowing the introduction of functional groups into these frameworks, thus expanding their potential applications.
- The study demonstrates a thiol-ene click reaction to successfully modify two COFs, enhancing their properties and structural versatility, which could lead to new applications in areas like hydrophilicity and proton conductivity.
Ionic Crosslinking of Linear Polyethyleneimine Hydrogels with Tripolyphosphate.
Gels
December 2024
Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Ciudad Autónoma de Buenos Aires 1113, Argentina.
In this work, the mechanical properties of hydrogels based on linear polyethyleneimine (PEI) chemically crosslinked with ethyleneglycoldiglycidyl ether (EGDE) were improved by the ionic crosslinking with sodium tripolyphosphate (TPP). To this end, the quaternization of the nitrogen atoms present in the PEI structure was conducted to render a network with a permanent positive charge to interact with the negative charges of TPP. The co-crosslinking process was studied by H high-resolution magic angle spinning (H HRMAS) NMR and X-ray photoelectron spectroscopy (XPS) in combination with organic elemental analysis and inductively coupled plasma mass spectrometry (ICP-MS).
View Article and Find Full Text PDFMineral-Mediated Epitaxial Growth of CoO Nanoparticles for Efficient Electrochemical HO Activation.
ACS Nano
January 2025
Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China.
Article Synopsis
- Solution-phase epitaxy is an effective method for creating functional nanomaterials, with the choice of support significantly influencing their properties.
- The research focuses on using calcination-modified kaolinite as a support to enhance the growth of hexagonal CoO nanoparticles, achieving over 40 times higher activity in HO electrochemical activation compared to those without support.
- Findings highlight the importance of aluminum sites in kaolinite, which improve the formation and electron transfer processes of CoO nanoparticles, ultimately demonstrating the potential of nanoclays as valuable supports in nanomaterial synthesis.
Fluoromethyl Triflate and Fluoromethyl Fluorosulfonate: Easily Accessible and Powerful Fluoromethylation Reagents.
Angew Chem Int Ed Engl
December 2024
Lehrstuhl für Anorganische Chemie und Strukturchemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.
Fluoromethyl triflate (superfluoromethyl, SFM, FHCOSOCF) and fluoromethyl fluorosulfonate (magic fluoromethyl, MFM, FHCOSOF) are two easily synthesized, highly effective and non-ozone depleting fluoromethylation reagents. They are analogous to the well-known and widely used methylation reagents HCOSOCF and HCOSOF. Both SFM and MFM have been fully characterized by multinuclear NMR spectroscopy (H, C, O, F, S).
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