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Hyaluronic acid in calves defects correction

Plastic and Aesthetic Research 2014年第1期1卷 62-64页

作者： Lorenzo Rosset mario goisis School of Medicine University of Turin10043 OrbassanoItaly Doctor’s Equipe via Carducci 1920123 MilanItaly

Aim:Since the advent of fillers,new techniques are continuously developed for different *** this study,we evaluated the use of hyaluronic acid for calf ***:A total of 42 patients were enrolled in this *** of them underwent augmentation procedure in our centers under local anesthesia,the operations were completed within 1 h with a prompt correction of the ***:Thirty-nine patients were satisfied with the treatment(93%),while three had complications,local infection,and lumps,that were resolved quickly(7%).Conclusion:Macrofillers can be injected into the calf to correct any *** advantages include short duration of treatment;the procedure performed under local anesthesia and limited side-effects that resolve *** study suggests the use of biocompatible macrofillers for the augmentation of not only calves,but also for augmentation of breast and buttocks.

关键词： Acid augmentation calves hyaluronic remodeling

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Influence of Comb-Polymer Structure on C<sub>3</sub>S Phase Hydration

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Materials Sciences and Applications 2013年第12期4卷 35-44页

作者： Lidia Eusebio Marco goisis Giuseppe Manganelli Valerio Antonio Paternò Paolo Gronchi Chemistry Materials and Chemical Engineering Department Politecnico di Milano Milan Italy Innovation Department ITALCEMENTI Stezzano (BG) Italy R&D Department CTG Italcementi Group Stezzano (BG) Italy

The cement hydration delay is due to comb-polymers (PCP), used as dispersant agent during the preparation of the cement paste. In order to evaluate the role of the PCP structure on hydration, the comb-polymer is separated in two main parts: the backbone (PAA) and the dispersing chain. A linear polymer made up of PEO, Mw = 1000, with a carboxylic head suitable to link the inorganic surface, was synthesized to simulate the effect of the dispersing-side chain. The hydration delay of C-S-H formation induced by comb-polymer on CEM I and C3S phase was analyzed by conduction calorimetry and the morphology of the crystalline structure in growth by SEM, specially studying the relation between structure and hydration time. The results show that the hydration delay is mainly ascribable to the comb-shaped structure as a whole, where PEO chain, as from considerations on energy, might assume conformations able to modify the salt concentration near the cement surface. The different hydration rates are tentatively related to the crystal growth and the surface texture observed by SEM.

关键词： C3S Cement Comb-Polymer Hydration Heat Flow

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