Effect of slot aspect ratio on droplet formation from silicon straight-through microchannels.
We recently proposed a novel technique for preparing monodisperse emulsions using an array of microfabricated through-holes with an oblong section; we called this array a straight-through microchannel (MC). This paper reports how the slot aspect ratio of the straight-through MC affects droplet formation characteristics. Straight-through MCs with different slot aspect ratios and equivalent diameters of about 20 microm were used. Experimental observation showed that slot aspect ratios exceeding a threshold of approximately 3 were needed to successfully prepare monodisperse emulsions with coefficients of variation below 2%.
Kobayashi
Isao
I
National Food Research Institute, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan.
Mukataka
Sukekuni
S
Nakajima
Mitsutoshi
M