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. 2019 Dec 31;12:47–53. doi: 10.2147/NSA.S232517

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© 2019 Alawdi et al.

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FTIR spectra depicting the characteristic peaks of the functional groups on nanodiamond particles and amlodipine: (A) FTIR spectra of nanodiamond particles; (B) FTIR spectra of amlodipine; (C) FTIR spectra of nanodiamond–amlodipine conjugates (strong peaks of amlodipine overlapped with nanodiamond particles spectra). Red arrow denotes to the FTIR peaks of nanodiamond particles; blue arrow denotes to the FTIR peaks of amlodipine.