Microencapsulation applications

E. Teunou and D. Poncelet, Rotary disk atomisation for microencapsulation applications -Prediction of the particle travel from the wheel, I. Food Engin. 71, 345-353 (2005). 

Teunou E, Poncelet D (2005) Rotary disc atomisation for microencapsulation applications—Prediction of the particle trajectories. Journal of Food Engineering 71 345-353. 

In another trial, microparticles of sodium alginate were produced by ionotropic gelation process in a microencapsulation application and achieved a drug entrapment efficienty of higher than 97% [15]. 

J.E. Vandegaer, Ed, Microencapsulation — Processes and Applications , Plenum Press, NY (1974) [Proceedings of the American Chemical Society Symposium on Microencapsulation Processes and Applications, held in Chicago,... 

Atmospheric concentrations of methyl parathion following application of the pesticide to tobacco fields were studied by Jackson and Lewis (1978). They found that levels of methyl parathion decreased rapidly following application of either the emulsifiable concentrate or the microencapsulated form. Air concentrations for the emulsifiable concentrate ranged from 7,408 ng/m immediately following application to 13 ng/m 9 days later. The corresponding measurements for the microencapsulated form were 3,783 and 16 ng/m. ... 

The steroid microsphere systems are probably the most successful drug delivery formulations thus far ba.sed on lactide/glycolide polymers. Several of these products appear to be on track for human and animal applications in the 1990s. The success of these formulations is due to the known safety of the polymer, the reproducibility of the microencapsulation process, reliability in the treatment procedure, and in vivo drug release performance (80). 

At present there is no reason evident why poly(N-acylhydroxy-proline esters) should not be suitable for the formation of microcapsules or microspheres as well. For microencapsulated drug fonmula-tions the longer degradation times of poly(N-acylhydroxyproline esters) as compared to poly (lactic acid) could again be a distinctive advantage for long-term applications. 

In reviewing intraarterial infusion of microencapsulated anticancer agents and its clinical applications, Nemoto (124) concluded that this mode of treatment can be used for a wide variety of tumors, providing remarkable therapeutic effects with minimal systemic toxicity. However, 25% of the treated tumors failed to respond, which was thought to be attributable to either inadequate catheterization, inadequate dose relative to tumor size, insufficient tumor vascularity, low drug sensitivity, or a combination of these factors. More carefully designed studies will be necessary before this technique is likely to meet with widespread acceptance. 

N Garti, A Aserin. Pharmaceutical emulsions double emulsions and microemulsions. In S Benita, ed. Microencapsulation-Methods and Industrial Applications. New York Marcel Dekker, 1996, pp 411-534. 

Particular attention should be paid to nonstandard production technologies including nonstandard methods of sterilization, sterile filtration and aseptic processing, lyophilization, microencapsulation, and certain critical mixing and coating operations. With such processes pilot-scale manufacture may not be predictive of industrial scale manufacture, and data on three full-scale production batches may be required in the application. 

Slurries from microencapsulated PCM can of course also be produced for heating applications. 

Microencapsulation Methods and Industrial Applications, edited by Simon Benita... 

Gharsallaoui, A., G. Roudaut, O. Chambin et al. 2007. Applications of spray-drying in microencapsulation of food ingredients An overview. Food Res. Int. 40 1107-1121. 

Several patent applications have been granted to SGT covering its sol gel microencapsulation process and its implementation for... 

PVA in, 25 617 setting speed of, 25 579-580 smectites application, 6 697t solution, 1 532-534 structural, 1 534-545 styrenic block copolymers in, 24 714 use of latex in, 14 711-712 vinyl acetate polymers in, 25 578-583 viscosity of, 25 581 water-borne, 25 475 Adhesive systems, microencapsules in, 16 460... 

Microencapsulated phase-change-material (PCM) slurry, 13 276 Microencapsulation, 16 438-463. See also Encapsulation processes controlled release pesticide applications, 7 561-566... 

Benita, S., Ed. Microencapsulation, Methods and Industral Applications, Marcel Deker, New York, 1996. 

Grafting a modified cinchona alkaloid to hexagonal mesoporous molecular sieve SBA-15 afforded catalyst (27) with excellent activity. 1-Phenyl-1-propene was converted to the corresponding diol in 98% yield (98% ee), while trans-stilbene yielded the desired product in 97% yield (99% ee) [92]. Other examples in this field are the utilization of microencapsulated osmium tetroxide by Kobayashi [93] and the application of continuous dihydroxylation mns in chemzyme membrane reactors described by Woltinger [94]. 

Dingier, A., et al.. Solid hpid nanoparticles (SLN/Lipopearls) a pharmacentical and cosmetic carrier for the application of vitamin E in dermal prodncts. J. Microencapsul., 16, 751-67, 1999. 

Various techniques have been developed for the preparation of microcapsules with diameters of 1-5000 pm one of these involves the method of interfacial polycondensa-tion.The following example describes the microencapsulation of a dyestuff, which has practical application in the manufacture of carbon-free copy paper. 

Lim F. Preface. In Lim F, editor. Biomedical applications of microencapsulation. Boca Raton (FL) CRC Press 1984. 

Thies C. A short history of microencapsulation technology. In Arshady R, editor. Preparation and chemical applications. Vol. 1. MML series.London Citus Books 1999. pp. 47-54. 

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