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Microfluidic spray drying device for process-oriented product development with low sample consumption
Microfluidics and Nanofluidics ( IF 2.8 ) Pub Date : 2019-11-08 , DOI: 10.1007/s10404-019-2296-9
S. Melzig , F. Purr , T. Lorenz , Z. Yan , J. H. Finke , C. Schilde , A. Kwade , A. Dietzel

The production of functional particle systems is becoming increasingly important in many industries. In the early development of such products, there is often not a sufficient amount of educts available or the educts are expensive and/or toxic. For this purpose, lab-scale processes are used which often differ from the later production processes. Unfortunately, the processes have a direct impact on the product properties. That makes a subsequent transfer from the unconventional lab methods to the actual fabrication process necessary, which is often associated with problems. To avoid complex additional efforts in the development of new functional particle systems and, thus, shorten the time to market, a modular microfluidic spray dryer was developed. With our new microfluidic spray dryer made from glass, it is possible to produce droplet sizes and, thus, particle sizes similar to those of conventional spray dryers in the lab or even in the production but using only smallest quantities of starting materials (product volume flow rates down to 0.03 ml/min). During the development of the micro spray dryer, process and formulation parameters as well as various microchannel geometries were investigated to determine their influence on droplet formation and, thus, on product formation. The developed micro spray dryer can be operated with various formulations and material compositions, as the micro system is made of chemically inert material, is easy to clean, pressure-resistant and can be used in a wide range of pH values.



中文翻译:

微流体喷雾干燥设备,用于以过程为导向的产品开发,样品消耗低

在许多行业中,功能性粒子系统的生产变得越来越重要。在此类产品的早期开发中,常常没有足够量的离析物,或者离析物昂贵和/或有毒。为此,使用实验室规模的过程,该过程通常不同于后来的生产过程。不幸的是,工艺对产品性能有直接影响。这就需要从非常规实验室方法到实际制造过程的后续转移,这通常会带来问题。为了避免在开发新的功能性粒子系统中进行繁琐的额外工作,从而缩短上市时间,开发了一种模块化的微流体喷雾干燥器。使用我们的新型玻璃微流体喷雾干燥器,可以产生液滴大小,并且,因此,其粒径与实验室乃至生产中的常规喷雾干燥器相似,但仅使用最少量的起始原料(产品体积流量低至0.03 ml / min)。在微型喷雾干燥器的开发过程中,研究了工艺和配方参数以及各种微通道几何形状,以确定它们对液滴形成的影响,从而对产品形成的影响。由于微系统由化学惰性材料制成,易于清洗,耐压且可在广泛的pH值范围内使用,因此开发的微喷雾干燥器可以使用各种配方和材料成分进行操作。颗粒大小与实验室甚至生产中的常规喷雾干燥器相似,但仅使用最少量的原料(产品体积流量低至0.03 ml / min)。在微型喷雾干燥机的开发过程中,研究了工艺和配方参数以及各种微通道几何形状,以确定它们对液滴形成的影响,从而对产品形成的影响。由于微系统由化学惰性材料制成,易于清洗,耐压且可在广泛的pH值范围内使用,因此开发的微喷雾干燥器可以使用各种配方和材料成分进行操作。颗粒大小与实验室甚至生产中的常规喷雾干燥器相似,但仅使用最少量的原料(产品体积流量低至0.03 ml / min)。在微型喷雾干燥机的开发过程中,研究了工艺和配方参数以及各种微通道几何形状,以确定它们对液滴形成的影响,从而对产品形成的影响。由于微系统由化学惰性材料制成,易于清洗,耐压且可在广泛的pH值范围内使用,因此开发的微喷雾干燥器可以使用各种配方和材料成分进行操作。研究了工艺和配方参数以及各种微通道的几何形状,以确定它们对液滴形成的影响,从而对产物形成的影响。由于微系统由化学惰性材料制成,易于清洗,耐压且可在广泛的pH值范围内使用,因此开发的微喷雾干燥器可以使用各种配方和材料成分进行操作。研究了工艺和配方参数以及各种微通道的几何形状,以确定它们对液滴形成的影响,从而对产物形成的影响。由于微系统由化学惰性材料制成,易于清洗,耐压且可在广泛的pH值范围内使用,因此开发的微喷雾干燥器可以使用各种配方和材料成分进行操作。

更新日期:2019-11-08
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