Table 1. TGA Results for Various SPION Preparations.

dcore (nm)	preparation method	TOCa (%, w/w)	ρgrafta (nm–2)	ρchain endsa (nm–2)
3.5	a, d, e, g, h, and j	35–78	nd	nd
3.5	b	28–29	2.2–2.3	0.35–0.37
	c, f, and i	28–30	nd	nd
3.5		38–39	2.6–2.7	0.35–0.4
5	k	32–35	2.8–3.2	0.6–0.7
8.3		22–23	2.8–3.1	1.0–1.1
3.5		26–28	2.2–2.9b	0.9–1.2b
5	mb	24–26	2.8–3.5b	1.4–1.8b
8.3		14–15	2.4–2.9b	1.6–1.9b

^aAverage of three measurements evaluated in the temperature interval (100–200 °C to 500 °C).

^bExpanded range of values arises from ambiguous composition of the shell (see SI 4.2 of the Supporting Information).