Tailoring Bulk Transport in Hydrogels through Control of Polydispersity in the Nanoscale Pore Size Distribution

abstract

• A study was conducted to demonstrate an approach of tailoring bulk transport in hydrogels through control of polydispersity in the nanoscale pore size distribution. The approach combined complementary information from in situ dynamic mechanical analysis, thermoporometry, and transmission electron microscopy (TEM) in a way that enables both the mean pore size and the pore size distribution, to be quantitatively characterized. The study also demonstrated that the approach can be significantly effective by employing multiple techniques with different physical characteristics. It was found that a large number of individual pores need to be scanned and a favorable combination of investigation parameters need to be identified for the successful application of the method. The approach used in the study involved sample preparation, based critical point drying with hexamethyldisilazene (HMDS), which allowed water to be gently displaced under ambient condition.

authors

• Ugaz, Victor

published proceedings

• ADVANCED MATERIALS

author list (cited authors)

• Wang, J., Gonzalez, A. D., & Ugaz, V. M.

citation count

• 28

complete list of authors

• Wang, Jian||Gonzalez, Angel D||Ugaz, Victor M

publication date

• December 2008

publisher

• Wiley  Publisher

published in

• ADVANCED MATERIALS  Journal

keywords

• 40 Engineering
• 4003 Biomedical Engineering
• 4016 Materials Engineering
• Bioengineering

Digital Object Identifier (DOI)

• 10.1002/adma.200801303

start page

• 4482

end page

• 4489

volume

• 20

issue

• 23

URL

• http%3A%2F%2Fdx.doi.org%2F10.1002%2Fadma.200801303