Một bài tiểu luận Cao học rất hay và mới về Vi sóng (microwave), tính chất, đặc trưng, tổng hợp và ứng dụng các loại vi sóng, dùng vi sóng trong tổng hợp, dùng làm tác nhân sấy, và các dụng dụng khác,...
MICROWAVE Instructor: Assoc.Prof.Dr Phan Thanh Son Nam Students: Nguyen Quoc Khuong Anh 13053071 Lê Hà Việt Luân 13053072 Mang Tấn Phong 13053073 Trần Phạm Thanh Thảo 12144421 CONTENT INTRODUCTION APPLICATIONS CONCLUSIONS Introduction Electro Magnetic Spectrum Click to edit Master text styles Second level Third level Fourth level Fifth level Microwaves are electromagnetic waves whose frequencies range from about 300 MHz – 300 GHz wavelengths in air ranging from 100 cm – mm DIPOLE ROTATION IONIC CONDUCTION INTERACTION OF MATERIALS WITH MICROWAVES INTRODUCTION Myrtus communis L Leaves many biological properties: hypoglycemic, antimicrobial, analgesic, antioxidant etc Comparative Study of Essential Oils Extracted from Algerian Myrtus communis L Leaves Using solvent-free-microwaveextraction and conventional Hydrodistillation METHOD RESULTS CONCLUSION Solvent Free Microwave extraction SFME was found to be highly effective enabling a considerable reduction in extraction time (30 against 180 min), providing an essential oil with a chemical composition enriched in oxygenated compounds but with yields similar to those of steam distillations SFME required only the initial water content of the raw material Thus, it consumed much less energy than hydrodistillation SFME is a good alternative to other extraction techniques CONCLUSION 4/12 green principles may be adapted by using microwave 70 REFERENCES Hayes, B.L. Microwave Synthesis: Chemistry at the Speed of Light; CEM Publishing: Matthews, NC, 2002 Bharat Parashar, Sudhir Bhardwaj, Sharda Sharma, G D Gupta, V K Sharma and P B Punjabi Comparative Conventional and Microwave assisted synthesis of some pyrazoline derivatives and their antimicrobial activity J Chem Pharm Res., 2(3):33-42, 2010 Sahoo Biswa Mohan, Behera T.P., Ravi Kumar B.V.V Microwave Irradiation Versus Conventional Method: Synthesis of Benzimidazolyl Chalcone Derivatives International Journal of ChemTech Research Vol.2, No.3, pp 1634-1637, 2010 Baya Berka-Zougali, Mohamed-Amine Ferhat, Aicha Hassani, Farid Chemat and Karim S Allaf Comparative Study of Essential Oils Extracted from Algerian Myrtus communis L Leaves Using Microwaves and Hydrodistillation Int J Mol Sci 13, 4673-4695, 2012 Cuilian Xu , Guoyu Yang, Caixia Wang, Sufang Fan, Lixia Xie and Ya Gao An Efficient SolventFree Synthesis of 2-Hydroxy-2-(trifluoromethyl)-2H-chromenes Using Silica-Immobilized L-Proline Molecules , 18, 11964-11977, 2013 Enamul Hassain S, Chaluvaraju KC, Niranjan MS, Zaranappa, Santhosh C Studies On Microwave Assisted Synthesis Of Some Schiff Bases J Pharm.4 (11), 2013 K Aravind, Arram Ganesh and D Ashok Efficient solvent-free microwave assisted organic synthesis of 1{2,4-dihydroxy-5-[3-imidazol-1-yl-3-aryl-propionyl]}-3-aryl-propenone and their antibacterial activity Journal of Chemical and Pharmaceutical Research, 5(6):34-39, 2013 Linsheng Wei, Yafang Zhang and Boquan Jiang Comparison of Microwave-assisted Hydrodistillation with the Traditional Hydrodistillation Method in the Extraction of Essential Oils from Dwarfed Cinnamomum Camphora var Linaolifera Fujita Leaves and Twigs Advance Journal of Food Science and Technology 5(11): 1436-1442, 2013 71 THANK YOU! ... larvicidal, anticonvulsant, antioxidant activities imidazole derivatives have been reported a diverse biological activities such as antimicrobial, antitumor, antifungal, anticancer, antiviral... ring moiety has been identified as one of the privileged scaffolds for drug discovery due to its broad spectrum of biological activity including antiviral, anti-tumor, anti-bacterial/antimicrobial,... chalcone derivatives play a vital role in pharmaceutical research and exhibit various pharmacological activities like antimicrobial, analgesic, anti-inflammatory, anticancer activity Both conventional