Does this have any usefulness in preparing pheromone solutions?

http://www.sono-tek.com/subCategories/Su...omizer.pdf

Here is the meat of it :

Reservoir-type microcapsules can be produced using a coaxial ultrasonic atomizer based on midair collision among multiple drops of component liquids and subsequent mass transfer at their interface. The reported process has several advantages over traditional emulsion microencapsulation techniques, especially in the encapsulation of protein drugs. First, the microcapsules form as a result of collision between different species of liquid drops; hence, the proteins are not subjected to damagingly strong mechanical stresses, such as prolonged emulsification [25,26].The encapsulated materials are only briefly exposed to the mild ultrasonic vibration during atomization. The energy that is applied to the ultrasonic atomization is also less than a few watts, which is far below a damaging level [23]. Second, the interfacial area between the aqueous phase and the hydrophobic polymer phase is minimal in reservoir-type micro-capsules, which could otherwise cause extensive denaturation of the encapsulated proteins. Third, the solvent exchange method is a single-step process which is clearly simpler than the existing microencapsulation techniques. This simple microencapsulation technique has the potential to develop various protein formulations under mild processing conditions.

I think I remember one of the gel-based products claiming to use a micro-capsule release technology. Anybody else remember this? May have been Perception.

Avery Gilbert and Charles Wysocki used encapsulation to sample odor perception in the 1986 National Geographic Smell Survey. One of the odors was a musk (Exaltolide or Galaxolide) as I recall. Back then it was commonly referred to as "scratch and sniff" technology. Perhaps microencapsulation is different, or maybe it's just a different name.

Not sure if the scratch-n-sniff was the same - this seem to be oriented to putting encapulated material into a liquid, which got me thinking of pheromone delivery