Table 1.

Assignments to FTIR Spectra of a) 5-FU, b) PDA coated 5-FU loaded HMSN c) Excipients; tetraethyl orthosilicate (TEO), Triton X 100, 3- aminopropyl triethoxysilane (APTES) and dopamine HCl.

Wavenumber (cm−1)						Assignments
5-FU	Excipients				PDA coated 5-FU loaded HMSN
	TEO	Triton 100	APTES	DHCl
	3469	3447				O–H Bending
3173			3335	3335	3173	N–H (Stretching) free
	2977	2961		3055		C–H Bending
				2938		O–H Stretching
	2889	2873				C–H Stretching
			2038
1720			1757		1627	C=O (Stretch)
1649					1506	C–N (Stretch)
	1635		1635			C–H Stretching
			1615	1615		N–H Bending
		1613		1605		C=C Stretching
				1503
		1464	1448			C–H Bending (methylene)
	1398		1348	1331
1243				1287	1243	C–H (in plane)
951	1266	1259	1088	1088	1100	C–O Stretching
	1111		917
		834	862
838					838	C–F
			814
	785					C–H Bending