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SEM pictures of (A) EC in powder form; (B) spray-dried ethanolic solution of EC (inlet temperature 65 °C, aspirator flow 98%, feed flow 3.5 mL/min); (C) spray-dried Surelease®; and (D) spray-dried Aquacoat™ ECD-30 (author’s pictures under magnification 10,000× (A,B); 5000× (C,D)).
