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3. Leonard Chia

3. SEM micrograph of a co-spray dried, controlled release anti-asthma drug by Leonard Chia

3. SEM micrograph of a co-spray dried, controlled release anti-asthma drug by Leonard Chia

SEM micrograph of a co-spray dried, controlled release anti-asthma drug. The hollow spheres decrease the density of the particles which increases its aerodynamic diameter, allowing it to escape the respiratory system's many clearance mechanisms to deposit in the deep lung. The textured surface of the particles also help to increase its aerosolisation ability.