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Biomedical Engineering and Bioengineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
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Articles 1 - 5 of 5
Full-Text Articles in Biomedical Engineering and Bioengineering
Influence Of The Graphitisation Of Hollow Carbon Nanofibers On Their Functionalisation And Subsequent Filling With Metal Nanoparticles, Jean-Philippe Tessonnier, Dirk Rosenthal, Frank Girgsdies, Julien Amadou, Dominique Begin, Cuong Pham-Huu, Dang Sheng Su, Robert Schlogl
Influence Of The Graphitisation Of Hollow Carbon Nanofibers On Their Functionalisation And Subsequent Filling With Metal Nanoparticles, Jean-Philippe Tessonnier, Dirk Rosenthal, Frank Girgsdies, Julien Amadou, Dominique Begin, Cuong Pham-Huu, Dang Sheng Su, Robert Schlogl
Jean-Philippe Tessonnier
The functionalisation of carbon nanomaterials with the standard nitric acid treatment is greatly influenced by their graphitic character. The structural order directs the density as well as the nature of the created functional groups and, as a consequence, influences the efficiency of their filling with metal nanoparticles.
Amino-Functionalized Carbon Nanotubes As Solid Basic Catalysts For The Transesterification Of Triglycerides, Alberto Villa, Jean-Philippe Tessonnier, Olivier Majoulet, Dang Shen Su, Robert Schlogl
Amino-Functionalized Carbon Nanotubes As Solid Basic Catalysts For The Transesterification Of Triglycerides, Alberto Villa, Jean-Philippe Tessonnier, Olivier Majoulet, Dang Shen Su, Robert Schlogl
Jean-Philippe Tessonnier
Multiwalled carbon nanotubes grafted with various amino groups show high activity and stability when used as basic catalysts for the transesterification of triglycerides.
Selective Deposition Of Metal Nanoparticles Inside Or Outside Multiwalled Carbon Nanotubes, Jean-Philippe Tessonnier, Ovidiu Ersen, Gisela Weinberg, Cuong Pham-Huu, Dang Sheng Su, Robert Schlogl
Selective Deposition Of Metal Nanoparticles Inside Or Outside Multiwalled Carbon Nanotubes, Jean-Philippe Tessonnier, Ovidiu Ersen, Gisela Weinberg, Cuong Pham-Huu, Dang Sheng Su, Robert Schlogl
Jean-Philippe Tessonnier
A general method is described for the deposition of metal nanoparticles selectively either inside or outside of carbon nanotubes (CNTs). The method is based on the difference in the interface energies of organic and aqueous solutions with the CNT surface. Because of their lipophilic character, the organic solvent better wets the surface of the nanotubes compared to water and penetrates into the inner volume. The precise control of the volume of each phase allows filling the CNT with the organic phase and covering its outer surface with the aqueous one. Hence, metal nanoparticles can be put with high selectivity either …
Design Of Mfi Zeolite-Based Composites With Hierarchical Pore Structure: A New Generation Of Structured Catalysts, F. Ocampo, H. S. Yun, M. Maciel Pereira, Jean-Philippe Tessonnier, B. Louis
Design Of Mfi Zeolite-Based Composites With Hierarchical Pore Structure: A New Generation Of Structured Catalysts, F. Ocampo, H. S. Yun, M. Maciel Pereira, Jean-Philippe Tessonnier, B. Louis
Jean-Philippe Tessonnier
Zeolite/glass composite materials with hierarchical trimodal pore size distributions have been successfully prepared and subsequently characterized. Starting from glass monoliths having meso- and macropores, additional microporosity was introduced while allowing the growth of zeolite crystals via partial recrystallization of the glass support into ZSM-5 zeolite phase. Structured zeolitic catalytic materials were produced using a combination of supramolecular templating methods to produce the glass support, followed by conventional self-assembly of template cations and silica species. Zeolite crystals are therefore in intimate contact with the glass support, featuring micropores in addition to the mesopores. Hence, these zeolite/glass composites exhibit enhanced diffusional properties …
Dna Assembler, An In Vivo Genetic Method For Rapid Construction Of Biochemical Pathways, Zengyi Shao, Hua Zhao, Huimin Zhao
Dna Assembler, An In Vivo Genetic Method For Rapid Construction Of Biochemical Pathways, Zengyi Shao, Hua Zhao, Huimin Zhao
Zengyi Shao
The assembly of large recombinant DNA encoding a whole biochemical pathway or genome represents a significant challenge. Here, we report a new method, DNA assembler, which allows the assembly of an entire biochemical pathway in a single step via in vivo homologous recombination in Saccharomyces cerevisiae. We show that DNA assembler can rapidly assemble a functional d-xylose utilization pathway (∼9 kb DNA consisting of three genes), a functional zeaxanthin biosynthesis pathway (∼11 kb DNA consisting of five genes) and a functional combined d-xylose utilization and zeaxanthin biosynthesis pathway (∼19 kb consisting of eight genes) with high efficiencies (70 - 100%) …