Martin Berberich  Ana‐Maria Krause  Michele Orlandi  Franco Scandola  Frank Würthner 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2008,120(35):6718-6721

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Francesco Peri  Francesca Granucci  Barbara Costa  Ivan Zanoni  Chiara Marinzi  Francesco Nicotra 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2007,119(18):3372-3376

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Paolo Raiteri  Roman Marto&#x;k  Michele Parrinello 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2005,117(24):3835-3839

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Diego Antonioli  Michele Laus  Katia Sparnacci  Simone Deregibus  Valerj Kapeliouchko  Tiziana Poggio  Giampaolo Zuccheri  Rosita Passeri  Luca Boarino 《Macromolecular Symposia》2012,311(1):70-76

Summary: PTFE/PES composites were prepared by precipitation of Radel A® into a PTFE latex containing nanoparticles with average diameters of 48 nm and spherical shape. Several samples were prepared by varying the relative ratio between the Radel A® and PTFE content. The combination of SEM and AFM analysis indicates that the precipitation of Radel A in the presence of PTFE leads mainly, if not exclusively, to a bimodal mixture of the two homoparticles. The fractionated crystallization behaviour of these samples is revealing of the PTFE dispersion degree within the Radel A® matrix. When the PTFE amount is lower than 2%, a perfect PTFE nanoparticle dispersion is obtained. When the amount of PTFE is comprised between 5 and 30%, larger PTFE clusters are obtained that, after melting, coalesce and crystallize at higher temperatures depending on the crystallization propensity of their individual heterogeneous nuclei. Finally, in case of samples 40%, only one crystallization exotherm is observed at 310 °C indicating the formation of very large clusters that after melting coalesce into wide domains.  相似文献   

    

Penny Martens  Michele Grant  Anastasia Nilasaroya  John Whitelock  Laura Poole-Warren 《Macromolecular Symposia》2008,266(1):59-62

Summary: This work focuses on the characterisation of ascorbic acid/persulphate initiating system. Three different persulphates were used (ammonium, potassium and sodium), and a range of initiator concentrations were tested. Gel time, gel quality, initiator toxicity, and cell survival upon encapsulation were measured. No significant differences were observed between the three types of persulphates. Higher concentrations of the initiators resulted in faster gel times (5min for 0.05wt% initiator) and higher quality gels (less than 20% sol fraction), although the lower initiator concentrations were better in terms of cell growth inhibition and survival upon encapsulation. Overall, this system shows great promise for use in biomedical applications, however there is a need to minimise the initiator concentration to increase cell compatibility while maintaining a high enough concentration for adequate gel formation.  相似文献   

    

Raiteri P  Bussi G  Cucinotta CS  Credi A  Stoddart JF  Parrinello M 《Angewandte Chemie (International ed. in English)》2008,47(19):3536-3539

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Lavallo V  Frey GD  Donnadieu B  Soleilhavoup M  Bertrand G 《Angewandte Chemie (International ed. in English)》2008,47(28):5224-5228

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Gervasio FL  Boero M  Parrinello M 《Angewandte Chemie (International ed. in English)》2006,45(34):5606-5609

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Richard R. French  Philipp Holzer  Michele G. Leuenberger  Wolf‐D. Woggon 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2000,112(7):1321-1323

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Linden  James  Samara  Meropi  Decker  Stephen  Johnson  Ellen  Boyer  Michele  Pecs  Mlklos  Adney  William  Himmel  Michael 《Applied biochemistry and biotechnology》1994,45(1):383-393

Applied Biochemistry and Biotechnology - Optimized acetyl esterase enzyme production conditions usingAspergillus niger ATCC 10864 in 14-L fermentation jars were determined to be 33?C, 1.5 vvm...  相似文献