Microencapsulation

Course overview

What will I learn?
This course covers the basic science and engineering of microencapsulation across a wide range of applications including the important stages of emulsification control, stability and release property control. While the majority of the course involves emulsions, multiple emulsions and particle coating are also included as well as details of the range of valuable characterisation tools and their applicability. The emphasis is on understanding the flow behaviour of the interaction of the various components in such complex systems. This should provide the basis for a rational approach to formulating and producing micro encapsulates to meet a range of needs.

In 2017 the course was fully redeveloped offering a programme of academic and industry cooperation taking delegates from the basic science through to manufactured products. The programme also includes interactive demonstrations, industry presentations and the opportunity for delegates to bring posters for discussion with the course cohort, speakers and PhD students.

On completion of this course you’ll have an understanding of:

  • developing a rational approach to formulate or modify emulsions for optimal processing behaviour, and using available laws and scaling relations to predict behaviour

  • the various methods of turning emulsions into encapsulates, including the process conditions that impact their final properties and behaviour

  • selecting characterisation devices and defining measurement procedures for a specific application

  • evaluating and interpreting experimental data.

Course structure

The 2020 course programme and leaflet will be available approximately 3 months prior to the course. However, you can view and download the 2019 course details for further information by clicking the above course programme link.

Day 1:

Basic science and key points around microencapsulation: what you need to know to get started

  • Map to guide you through the course: microencapsulation methods vs product requirements

  • Important properties of microcapsules (type, shape, size, release charateristics, strength)

  • Important properties of system to encapsulate (Hansen solubility parameter)

Spray Drying

  • Introduction to spray drying for encapsulation

  • Droplets and sprays in encapsulation: background in forming droplets from nozzles and common process units

  • Demonstration session:

    • Spray Drying

    • Highly-upscaled, size-controlled microencapsulation: step emulsification

    • Gelatin/complex coacervation

    • Metal shell capsules preparation - achieving retention and triggered release of small volatile actives

Day 2:

Coating of Particles

  • Coating of solid particles 

  • Process - fluid bed coaters, pan coaters

  • Industry presentation on coating of solid particles using fluid beds

Emulsion-based methods

  • How to decide on an affordable microencapsulation method - economics behind encapsulation

  • Emulsion theory, importance of miscibility/cLogP, how useful is HLB of surfactants, Pickering emulsions/colloidosomes

  • Short introduction on what the rest of the course will focus on regarding these methods - focus on emulsion-based encapsulation methods

  • Complex coacervation methods

  • Demonstration session:

    • Spray Drying

    • Highly-upscaled, size-controlled microencapsulation: step emulsification

    • Gelatin/complex coacervation

    • Metal shell capsules preparation - achieving retention and triggered release of small volatile actives

  • Droplet size control theory, importance of surface energy, viscosity and size of molecules

  • Industry presentation: application of emulsion based methods

Day 3:

Emulsion-based methods - turning emulsions into core-shell microcapsules

  • Key properties and evaluation I

  • Interfacial polymerisation: traditional vs potential of living radical polymerisation methods

  • Pickering emulsions for food applications with emphasis on the controlled delivery of actives

  • Industry presentation: Size controlled microencapsulation at industrial scale

  • Key properties and evaluation II

  • Forming barriers on droplet and particle surfaces

  • Evaluating mechanical properties and release rates - techniques, challenges and watch outs

Who should attend?

This course is for you if you’re a scientist or engineer in the chemical, petroleum, polymers, coatings, inks, food, pharmaceuticals, cosmetics or general chemical industries with responsibility for R&D projects, process engineering, manufacturing or product formulation involving incorporating microencapsulates into formulated products.

What our delegates say

"An inspiring and comprehensive course. I leave feeling well informed and connected." Unilever

"Excellent overview on microencapsulation - covering theory, practicalities and characterisation." Quotient Clinical Ltd

"Very useful, comprehensive course covering the basics and more advanced areas of microencapsulation." Pliva Croatia

"Excellent taster into microencapsulation allows a broad overview to store and bring out when required and furthers my understanding of current used processes" FMC

Speakers

Course Directors

Professor David York and Dr Olivier Cayre, University of Leeds

Fee information

2020 fees

£TBC

Fees are VAT exempt

Fees include:

  • cost of tuition

  • course materials

  • lunches

  • light refreshments

  • course dinner

View our terms and conditions

Venue details

Faculty of Engineering and Physical Sciences
University of Leeds
Leeds
LS2 9JT

Detailed directions (including the exact location for the course registration and presentation room) will be sent out with the delegate joining instructions.

How to find us

The nearest public car park is Woodhouse Lane (multi storey) at LS1 3HQ. The car park is open 24 hours. Charges apply (£6.00 up to twelve hours). Please click here for information and location details. Please note this car park is a fifteen minute walk to/ from our building and delegates should allow ample time to park and register for the course. 

Car parking for visitors is unavailable at the University.

There is also limited on-street parking in the vicinity of the University.

Accommodation

You’re responsible for your own accommodation, if required. A list of hotels close to the University will be sent with your course joining instructions.

Contact us

Jenna King – Course Coordinator

CPD Conference and Events Unit
Faculty of Engineering and Physical Sciences 
University of Leeds,
Leeds
LS2 9JT

T: +44 (0)113 343 5746

E: cpd@engineering.leeds.ac.uk