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Nano spray dryers refer to using spray dry … Nano spray dryers refer to using spray drying to create particles in the nanometer range. Spray drying is a gentle method for producing powders with a defined particle size out of solutions, dispersions, and emulsions which is widely used for pharmaceuticals, food, biotechnology, and other industrial materials synthesis. In the past, the limitations of spray drying were the particle size (minimum 2 micrometres), the yield (maximum around 70%), and the sample volume (minimum 50 ml for devices in lab scale). Recently, minimum particle sizes have been reduced to 300 nm, yields up to 90% are possible, and the sample amount can be as small as 1 ml. These expanded limits are possible due to new technological developments to the spray head, the heating system, and the electrostatic particle collector. To emphasize the small particle sizes possible with this new technology, it has been described as "nano" spray drying. However, the smallest particles produced are in the sub-micrometre range common to fine particles rather than the nanometer scale of ultrafine particles.he nanometer scale of ultrafine particles.
, Nano spray dryer è uno strumento utilizzat … Nano spray dryer è uno strumento utilizzato per la tecnologia di al fine di produrre polveri aventi particelle nella scala dei nanometri. Questo metodo di essiccazione consente di produrre delle fini polveri aventi una granulometria definita, partendo da soluzioni, dispersioni ed emulsioni, ampiamente utilizzate nell'industria farmaceutica e alimentare, nelle biotecnologie, nel settore dei materiali e delle ceramiche. In passato, le limitazioni della tecnica di spray drying erano individuate nella dimensione del particolato (> 2 micron), nella resa di prodotto (< 70%), e nel volume di campione iniziale (> 50 ml). Con l'introduzione di nuove tecnologie, la dimensione del particolato è stata ridotta fino a 300 nanometri, le rese portate anche al 90%, e la quantità iniziale di campione fino a 1 ml. Gli sviluppi tecnologici sono stati applicati alla sede di atomizzazione, al sistema riscaldante e al collettore elettrostatico. Dunque, per enfatizzare l'apporto di questa nuova tecnologia è stato coniato il termine "nano" spray drying. Ad ogni modo, il particolato più fine rimane nell'ambito della gamma submicronica, più comune alle cosiddette polveri fini che alla reale scala nanometrica delle .i che alla reale scala nanometrica delle .
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Nano spray dryers refer to using spray dry … Nano spray dryers refer to using spray drying to create particles in the nanometer range. Spray drying is a gentle method for producing powders with a defined particle size out of solutions, dispersions, and emulsions which is widely used for pharmaceuticals, food, biotechnology, and other industrial materials synthesis. and other industrial materials synthesis.
, Nano spray dryer è uno strumento utilizzat … Nano spray dryer è uno strumento utilizzato per la tecnologia di al fine di produrre polveri aventi particelle nella scala dei nanometri. Questo metodo di essiccazione consente di produrre delle fini polveri aventi una granulometria definita, partendo da soluzioni, dispersioni ed emulsioni, ampiamente utilizzate nell'industria farmaceutica e alimentare, nelle biotecnologie, nel settore dei materiali e delle ceramiche.l settore dei materiali e delle ceramiche.
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Nano spray dryer
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