pH-triggered Release of Boron and Thiamethoxam from Boric Acid Crosslinked Carboxymethyl Cellulose Hydrogel Based Formulations Dhruba Jyoti Sarkar Anupama Singh 10.6084/m9.figshare.7577897.v1 https://tandf.figshare.com/articles/journal_contribution/pH-triggered_Release_of_Boron_and_Thiamethoxam_from_Boric_Acid_Crosslinked_Carboxymethyl_Cellulose_Hydrogel_Based_Formulations/7577897 <p>Boric acid crosslinked carboxymethyl cellulose hydrogels were synthesized to develop pH-triggered release formulations (pH-TRFs) of boron and thiamethoxam. The developed hydrogels showed pH sensitive water absorption capacity (16.75 to 110.80 g/g xerogel). Entrapment of thiamethoxam was done through an <i>ex-situ</i> loading technique. The boron and thiamethoxam release was studied in pH buffer solutions (4.0, 7.0 and 9.2). Release kinetics analysis using mathematical models showed fast release in high pH solution as compared to acidic pH. These pH-TRFs may find usefulness in selective release of nutrients and pesticides in plant rhizospheric zone of problem soils viz. acidic soils and alkaline soils.</p> 2019-01-11 13:36:29 Boric acid carboxymethyl cellulose hydrogel thiamethoxam triggered release formulations