PVA for Microneedle Application: Molecular Weight and Hydrolysis
Question
I am looking for Polyvinyl alcohol (PVA) for microneedle application. I require the following specifications:
- Molecular Weight (MW):
30,000–50,000 - Hydrolysis:
98–99% hydrolyzed
Could you please recommend any products that are similar or directly match these requirements?
Answer
Polyvinyl alcohol (PVA) with characteristics similar to what you are looking for to make microneedles, we have a group of PVA products with Fully Hydrolysis, which is equivalent to the 98-99% hydrolyzed you are seeking.
We offer the following Fully Hydrolysis Polyvinyl alcohol products:
Polyvinyl alcohol (PVA 117) 22-30mpa.s. Fully (Flakes) (Product ID 7983)
- Viscosity: 22-30 mpa.s
- It is Fully Hydrolysis, which helps the film become harder, more waterproof, and adheres better to hydrophilic surfaces.
Polyvinyl alcohol (PVA 120) 32-40mpa.s. Fully (Product ID 7984)
- Viscosity: 32-40 mpa.s
- It is also Fully Hydrolysis, providing similar properties of a harder and more waterproof film.
Regarding the Molecular Weight (MW) of 30,000–50,000, our product information specifies viscosity (mpa.s) instead. Generally, higher viscosity correlates with higher Molecular Weight. Choosing either PVA 117 or PVA 120, both being Fully Hydrolysis, would be a good starting point for your microneedle development, as strong film properties and good adhesion are crucial for this application.
You may need to consider the viscosity (mpa.s) value to select the most suitable one for your microneedle formulation.
