Polysaccharide-Based Materials
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1 Titolo presentazione sottotitolo Polysaccharide-Based Materials OSCMLab LaboratoryMilano, of Organic XX Synthesis, mese 20XXCatalysis, and Materials Carlo Punta Department of Chemistry, Materials, and Chemical Engineering «G. Natta»
2 The fact: Today, standard procedures for chemical processes require inexpensive reagents, used under the mildest possible conditions, in order to achieve the desired products in high chemical yields and high atom economy by following the common rules of Green Chemistry. Group s aim: To produce high added value organic products and materials for fine and basic chemistry and to meet growth, environmental and health expectations. This has to be obtained by a significant reduction of wastes and energy consumption with a consequent reduction in capital investment. How: Our motto is understanding chemistry for making chemicals. Our approach consists in basic research, mechanism interpretation, and practical applications. Research fields: New catalytic systems for sustainable oxidations under mild conditions. Multicomponent reactions for advanced organic synthesis Organic vectors, gels, and materials for drug- and gene-delivery New sorbent materials for water, soil, and air decontamination Porous Coordination Polymers for novel applications
3 Polysaccharide-based materials CELLULOSE CYCLODEXTRINS STARCH FENUGREEK
4 Polysaccharide-based materials CELLULOSE CYCLODEXTRINS Carbohydrate Polymers 2017, 165, ChemPlusChem 2017, 82, Biomacromolecules 2016, 17, ChemPlusChem 2015, 80, RSC Advances 2015, 5, Beilstein J. Org. Chem. 2017, 13, STARCH Exp. Opin. Drug. Deliv. 2017, 14 (3), Phys.Chem.Chem.Phys. 2017, 19, Phys.Chem.Chem.Phys. 2017, 19, FENUGREEK Current Org. Chem. 2018, in press. PLoS One, 2010, 5, e Photochem. Photobiol. Sci., 2014, 13, Carbohydrate Polymers 2016, 144, 353.
5 Polysaccharide-based materials: Cellulose From nano-sized to NANO-STRUCTURED materials Nanomateriali per la Bonifica associata a Dewatering di matrici ambientali NAno cellulosa da fonti rinnovabili per la somministrazione sostenibile Di fitofarmaci
6 Polysaccharide-based materials: Cellulose From nano-sized to NANO-STRUCTURED materials ILARIA CORSI High capacity adsorbent Pulp wastes Low cost Easy scale up Low environmental impact Carbohydrate Polymers 2017, 165, 71 85; ChemPlusChem 2017, 82, ; ChemPlusChem 2015, 80,
7 Polysaccharide-based materials: Cellulose From nano-sized to NANO-STRUCTURED materials RSC Advances 2015, 5, J. Photochem. Photobiol. A. 2013, 261, 53. Biomacromolecules 2016, 17,
8 Porous Coordination Polymers for novel applications: Selective Adsorption of Volatile Organic Compounds. Porous coordination polymers are a relatively new class of hybrid materials made by the self assembly of organic ligands and metals ions. Metal Ligand Solvent or Guest 1D pores % adsorption Selective adsorption of dichloro ethane (DCE) vapours over other chlorinated volatile organic pollutants under ambient conditions of T and P, and sustained retention. Dalton Trans., 2016, 45, Dalton Trans., 2016, 45, 1674 Chem. Commun., 2015, 51, Potential applications for i) adsorption of nitro aromatics ii) alkane/alkene/alkyne mixture separation
9 Polysaccharide-based materials: Galactomannans From nano-sized to NANO-STRUCTURED materials Carbohydrate Polymers 2016, 144, 353.
10 Polysaccharide-based materials: Chitosan Chitosan-Graft-PEI: efficient, non-cytotoxic, non-viral gene delivery vectors PLoS One, 2010, 5, e13430; Photochem. Photobiol. Sci., 2014, 13,
11 Polysaccharide-based materials: Chitosan Current Org. Chem. 2018, in press. PLoS One, 2010, 5, e13430; Photochem. Photobiol. Sci., 2014, 13,
12 Oligosaccharide-based materials: Cyclodextrin (CD) and Cyclodextrin Nanosponges (CDNS) natural and biodegradable compounds Home care low toxicity and hight versatility Food Cosmetics Drugs
13 Oligosaccharide-based materials: Cyclodextrin (CD) and Cyclodextrin Nanosponges (CDNS) CDNS nanoporous cross-linked polymers Intriguing properties: increase the dissolution rate, solubility and stability of drugs, mask unpleasant flavors, convert liquid substances to solids and to prolong the release of drug Absorb organic and inorganic pollutants They may form stable hydrogels (e.g. drug loaded hydrogels) Soft Matter 2014, 10, 2320 Beilstein J. Org. Chem. 2014, 10, 2715 PCCP 2017, 19, 6022 Beilstein J. Org. Chem. 2017, 13, 182
14 New catalytic systems for sustainable oxidations Why: oxidative processes of organic compounds represent some of the most important chemical transformations involved in many fundamental areas, including general synthesis, industrial processes, materials, energy, biology, and so on. The oxidants: the eco-friendly standards for the oxidative processes require oxidants able to combine a low environmental impact with an economical convenience. Molecular oxygen and hydrogen peroxide are the ideal oxidants from this point of view. Catalysis: the use of these green oxidants strictly depends on the employment of catalytic systems, which allow operating with high selectivity under mild conditions. This group is specialized in the design of new often metal-free homogeneous catalytic systems for the selective oxidation of a wide range of substrates. The developed processes based on this new catalysts often provide promising green and more convenient alternatives to classical industrial procedures More than 20 papers on the field 4 book chapters edited by Wiley & Elsevier 5 international patents 2 national patents Beilstein J. Org. Chem. 2013, 9,
15 Prof. Alessandro Sacchetti Prof. Alessandro Volonterio Prof. Massimo Cametti Prof. Carlo Punta Dr. Melone, PhD Dr. Fiorati, PhD Dr. Petroselli, PhD Dr. Pastori Dr. Rossi, PhD Dr. Pennetta Dr. Rossetti Dr. Colombo Dugoni Dr. Caruso Dr. Lippi
16 LGS Laboratorio Grandi Strumenti NMR spectroscopy Mass Spectrometry Powder X ray Diffraction FT IR UV Vis Freeze drying equipment Prof. Andrea Mele Dipartimento CMIC G. Natta Via L. Mancinelli Milano Italy Ph andrea.mele@polimi.it
17 LGS What can NMR do for you? How to identify pollutants? LIQUID STATE From molecular structure to metabolomics SOLID STATE From materials to drug delivery SOFT MATTER Gels, Composites, Suspensions How to evaluate materials? MICROIMAGING From medicine to materials engineering NMR microimaging of cooked pasta How to identify industrial byproducts? NMR SPECTRA MVA How to study food? Metabolic profiling for food Chemical engineering What s inside a gel? Cosmetics and Wellness Products
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