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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: Drug Discov Today. 2017 Apr 26;22(9):1421–1429. doi: 10.1016/j.drudis.2017.04.008

Table 1. Multifunctional theranostic SPIONs for cancer imaging and therapy.

Polymer Coating Size (nm) Imaging Modality Therapy Modality Targeting Ligands Application
Chitosan - MRI Chemotherapy (camptothecin) Folate In vivo magnet-guided MRI and treatment for Kunming mice bearing H22 tumor [18]
Polyvinyl alcohol/polyacrylic acid 100-150 MR/fluorescence imaging Chemotherapy (doxorubicin and curcumin) Lactoferrin In vivo magnet-guided fluorescence imaging and treatment for BALB/c nude mice bearing RG2 glioma tumor [19]
Amphiphilic polymer (undefined) 20 MR/fluorescence imaging Chemotherapy (doxorubicin) IGF1 peptide In vivo targeted MR/fluorescence imaging and treatment for nude mice bearing orthotopic pancreatic patient-derived xenograft tumor [24]
PLGA 80-100 MR/fluorescence imaging Chemotherapy (tamoxifen) Herceptin In vitro test for pH-/thermal-responsive drug release and in vivo chemotherapy for MCF-7 tumor treatment [26]
PNIPAM copolymer 170 MR/fluorescence imaging Chemotherapy (curcumin) None In vitro temperature sensing and temperature-responsive drug release with NIR irradiation or AMF [28]
PNIPAM 370-430 MR/fluorescence imaging Chemotherapy (5-fluorouracil) None In vitro thermal-responsive drug release for 7901 cell treatment [29]
PEG/chitosan 52 MR/fluorescence imaging Chemotherapy (methotrexate) Methotrexate (mimic folate) In vivo targeted MR and fluorescence imaging with protease-mediated drug release to inhibit Hela tumor growth in Sprague-Dawley rats [31]
Dextran 21 MR/fluorescence imaging Chemotherapy (azademethylcolchicine) None In vivo MRI and targeted drug activation in MMP-14 expressed MMTV-PyMT tumor with low toxicity to normal tissue of FvBN mice [32]
Chitosan-PEG grafted PEI 41 MRI Gene therapy (siRNA) Anti-GPC3 Ab In vivo targeted delivery of siRNA for orthotopic HCC therapy in athymic Nu/J mice [41]
Phospholipid-PEG 45-50 MRI Immunotherapy (dsRNA analog); Chemotherapy {Pt(IV)} None In vitro evaluation for combined chemoimmunotherapy for cancer treatment [42]
PEO-b-PCL 190 MRI PTT (Au); Chemotherapy (paclitaxel) None In vitro test of combined chemotherapy and PTT to MCF-7 and MDA-MB-231 cells [48]
PEI/PEG 150 MRI/CT/PAI PTT (Au) Folate In vivo trimodal imaging and PTT treatment for Hela tumors [49]
PDA/PDM 210 MRI/CT/PAI Gene therapy (plasmid DNA); PTT (Au) None In vivo trimodal imaging and PTT/genetherapy for C6 glioma tumor-bearing BALB/c nude mice [50]
PEG/PPy 100 MRI/PAI PTT (PPy) None In vivo MRI/PAI and PTT treatment for BALB/c nude mice bearing 4T1 tumor [52]
C18PMH-PEG 100 MRI PTT (PPy) Chemotherapy (doxorubicin) None In vivo MRI and chemotherap/PTT treatment for BALB/c nude mice bearing 4T1 tumors [53]
PEG 14-18 MR/fluorescence imaging PDT (Ce6); Chemotherapy (doxorubicin) Red blood cell In vivo MR and fluorescence imaging and chemotherapy/PDT to suppress 4T1 tumor growth in BALB/c nude mice [56]
Phospholipid-PEG 28-30 MRI Hyperthermia (SPION); Chemotherapy (doxorubicin) None In vitro study of combined hyperthermia and chemotherapy to Hela cells [60]
PEG/PPy 153 MRI Hyperthermia (SPION); Chemotherapy (doxorubicin) None In vivo MRI and combined hyperthermia/chemotherapy to control HepG2 tumor growth in nude mice [61]