Supporting Information Bifunctional Magnetic-Fluorescent Nanoparticles

Supporting Information

Bifunctional Magnetic-Fluorescent Nanoparticles: Synthesis, Characterization and Cell imaging Yanjiao Lu,a Yang Zheng,b Shusen You,a Feng Wang,a Zhuo Gaoa, Jie Shen,b Wantai Yanga and Meizhen Yin*a a

State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, 100029 Beijing, China. Email: [email protected]. b Department of Entomology, China Agricultural University, 100193 Beijing, China.

Figure S1.

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H NMR spectrum of PDI-PtBA.

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Figure S2.

1

H NMR spectrum of PDI-PAA in D2O.

Table S1. Summary of molecular weight data Polymer

r.u.a

Mn,NMR (g/mol)b

Mn,GPC (g/mol)

Mw/Mn

PDI-PtBA PDI-PAA

50 50

27251 16251

21000 10700

1.26 1.20

a b

repeat units on every arm calculated from 1H NMR spectra

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Figure S3. XRD pattern of Fe3O4 NPs.

Figure S4. The image of ninhydrin reaction of (A) Fe3O4@SiO2 and (B) Fe3O4@SiO2-NH2 NPs.

Figure S5.

Fluorescent emission spectrum of Fe3O4@SiO2-PDI-PAA/Ca2+ NPs.

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Figure S6. Particle size distribution Fe3O4@SiO2-PDI-PAA/Ca2+ NPs.

of

(A)

Fe3O4,

(B)

Fe3O4@SiO2

Figure S7. Hysteresis loop of the Fe3O4 NP.

Figure S8. (A) The solution of Fe3O4@SiO2-PDI-PAA/Ca2+ NPs (B) Fe3O4@SiO2-PDI-PAA/Ca2+ NPs are separated rapidly by magnet.

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and

(C)

Cell viability (%)

100 80 60 40 20 0 Control

20

40

80

100

Concentration (µg/mL)

Figure S9. The cell viability assays of Fe3O4@SiO2-PDI-PAA/Ca2+ NPs.

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