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Polymers that form hydrogels in the presence of Ho3+ cations and those that fail.1
| Form Gels with Ho3+ | Do Not Form Gels with Ho3+ |
|---|---|
| alginic acid | hyaluronic acid |
| carboxymethyl cellulose | chitosan |
| ι-carrageenan | κ-carrageenan |
| polygalacturonic acid | dextran sulfate |
| poly(bis(4-carboxyphenoxy phosphazene)) | polystyrene sulfonate |
| poly(vinyl phosphonic acid) | |
| poly(acrylic acid) | |
| chondroitin sulfate |
See Supplemental Figure 3 for structures of the polymers.
