3 years ago

Cover Image, Volume 135, Issue 2

Cover Image, Volume 135, Issue 2
This SEM image from Rodrigo César Sabadini and colleagues depicts a lyophilized gellan gum-Jeffamine superabsorbent hydrogel obtained with different crosslink density by using different amounts of (1-ethyl-3- (3-dimethylaminopropyl)carbodiimide hydrochloride) (EDC) and N-hydroxysuccinimide (NHS). Morphology analysis indicates denser structures for samples with higher crosslinking points. The swelling degree in high acyl gellan gum hydrogels was equivalent to 145 times their dry weight, and 77 times when low acyl gellan gum was used. Hydrogels also showed a 450 minute water retention opposed to 280 minutes for pure water, possible when it is used with controlled fertilizer release. (DOI: 10.1002/app.45636)

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/app.45789

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