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a FTIR spectra of ellagic acid and bioactive polymer physical mixture. b FTIR spectra of blank nanosponges (NS1, NS2) and ellagic acid loaded nanosponges (EANS1, EANS2) prepared by melt method. c FTIR spectra of blank nanosponges (NS3, NS4) and ellagic acid loaded nanosponges (EANS3, EANS4) prepared by microwave-assisted synthesis
