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51.
Clément Ghiazza Dr. Thierry Billard Dr. Anis Tlili 《Chemistry (Weinheim an der Bergstrasse, Germany)》2019,25(26):6482-6495
The use of visible light activation/photoredox chemistry for the generation of radical-centered chalcogen–CF3 has gained widespread interest in the last past three years. Its subsequent reactivity for the synthesis of new chalcogen–CF3-containing building blocks gained much attention. To date several methodologies have been developed addressing several challenges in modern organofluorine chemistry and enabled substantial progress in substrates scope and reaction conditions. This review describes these advancements with a particular focus on the reaction mechanisms. 相似文献
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Journal of Heuristics - In this article, we study an Inventory Routing Problem with deterministic customer demand in a two-tier supply chain. The supply chain network consists of a supplier using a... 相似文献
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Imene Mejri Mohamed Kadri Younes Abdelhamid Ghorbel 《Journal of Sol-Gel Science and Technology》2006,40(1):3-8
Aerogel and xerogel sulphated zirconia with defined atomic ratio S/Zr = 0.5 and molar hydrolysis ratio h = nH2O/nZrO2 = 3 show different textural and structural properties after calcination at high temperatures. The aerogel obtained just after
solvent evacuation develops only the tetragonal phase, whereas the xerogel dried in an oven is amorphous. Heating to a temperature
above 833 K, leads to transition of the tetragonal phase to the monoclinic one for the two solids, due to sulphur loss but
the tetragonal phase remains stable for the aerogel . Raman, Infrared and XPS spectroscopies show that the loss of the sulphur
at high temperatures seems to be easier for the xerogel than for the aerogel. 相似文献
54.
Recently, for sensor application, porous silicon has received a great deal of attention due to the high specific surface area and the easy fabrication using some established processes of the usual silicon technology. We herein, report the development of a novel immunosensors based on porous silicon for antigen detection. The multilayer immunosensor structure was fabricated following the successive steps: APTS self-assembled monolayer (SAM) layer, glutaaldehyde linker, anti-rabbit IgG binding. The insulating properties of the aminopropyl-triethoxysilane (APTS) monolayer were studied with cyclic voltammetry and the molecular structure was characterized with Fourier-transform infrared (FTIR) technique. The binding between antibody and different antigen concentration (rabbit IgG) was monitored by measuring the capacitance-voltage curve of the antibody functionalized EIS structure. A detection limit of 10 ng/ml of antigen can be detected. 相似文献
55.
M. Kadri J. J. Schleiffer J. P. Adloff 《Journal of Radioanalytical and Nuclear Chemistry》1991,154(2):139-151
Various simple and complex compounds of238U and237Np have been irradiated in a neutron flux. The chemical state of239U and238Np formed in (n, ) reactions has been determined as a function of the initial oxidation state of the actinide elements and of the nature of ligands. A scheme for the chemical reactions following neutron capture is proposed. 相似文献
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Jose Gustavo De la Ossa Hani El Kadri Jorge Gutierrez-Merino Thomas Wantock Thomas Harle Maurizia Seggiani Serena Danti Rossella Di Stefano Eirini Velliou 《Molecules (Basel, Switzerland)》2021,26(7)
A novel strategy involving Olive Leaf Extract (OLE) and Cold Atmospheric Plasma (CAP) was developed as a green antimicrobial treatment. Specifically, we reported a preliminary investigation on the combined use of OLE + CAP against three pathogens, chosen to represent medical and food industries (i.e., E. coli, S. aureus and L. innocua). The results indicated that a concentration of 100 mg/mL (total polyphenols) in OLE can exert an antimicrobial activity, but still insufficient for a total bacterial inactivation. By using plain OLE, we significantly reduced the growth of Gram positive S. aureus and L. innocua, but not Gram-negative E. coli. Instead, we demonstrated a remarkable decontamination effect of OLE + CAP in E. coli, S. aureus and L. innocua samples after 6 h. This effect was optimally maintained up to 24 h in S. aureus strain. E. coli and L. innocua grew again in 24 h. In the latter strain, OLE alone was most effective to significantly reduce bacterial growth. By further adjusting the parameters of OLE + CAP technology, e.g., OLE amount and CAP exposure, it could be possible to prolong the initial powerful decontamination over a longer time. Since OLE derives from a bio-waste and CAP is a non-thermal technology based on ionized air, we propose OLE + CAP as a potential green platform for bacterial decontamination. As a combination, OLE and CAP can lead to better antimicrobial activity than individually and may replace or complement conventional thermal procedures in food and biomedical industries. 相似文献
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