Mesoporous Iron Oxide Synthesized Using Poly(styrene-b-acrylic acid-bethylene. glycol) Block Copolymer Micelles as Templates for Colorimetric and

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1 Supporting Information Mesoporous Iron Oxide Synthesized Using Poly(styrene-b-acrylic acid-bethylene glycol) Block Copolymer Micelles as Templates for Colorimetric and Electrochemical Detection of Glucose Shunsuke Tanaka +1,2, Yusuf Valentino Kaneti* +2, Ripon Bhattacharjee 3,4, Md Nazmul Islam 3,4, Rina Nakahata 5, Nawfel Abdullah 1, Shin-ichi Yusa 5, Nam-Trung Nguyen 3,4, Muhammad J. A. Shiddiky 3,4 *, Yusuke Yamauchi* 1,6,7, and Md. Shahriar A. Hossain 1,2 * 1 Australian Institute of Innovative Materials (AIIM), University of Wollongong, North Wollongong, New South Wales 2500, Australia 2 International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki , Japan 3 School of Natural Sciences, Griffith University, Queensland 4111, Australia 4 Queensland Micro- and Nanotechnology Centre, Griffith University, Queensland 4111, Australia 5 Department of Materials Science and Chemistry, University of Hyogo, 2167 Shosha, Himeji , Japan. 6 School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia 7 Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia + These authors equally contributed to this work. s: KANETI.Valentino@nims.go.jp; yusuke@uow.edu.au; m.shiddiky@griffith.edu.au; shahriar@uow.edu.au S-1

2 Keywords: mesoporous metal oxides, iron oxide, block copolymers, soft-template, glucose detection S-2

3 Table S1 Comparison of the catalytic activities of iron oxide nanoparticles prepared by different s. Synthesis Method Morphology Substrate K m (mm) V max / 10-8 M s -1 Reference Block copolymer micelles (Softtemplate) Soft-template induced phase selective synthesis Solvothermal Hydrothermal Reduction coprecipitation Hydrothermal Hydrothermal Mesoporous structure H 2 O This work TMB Nanoparticles H 2 O TMB Nanoparticles H 2 O TMB Nanoparticles H 2 O TMB Nanoparticles H 2 O TMB Nanocubes TMB Nanoparticles H 2 O TMB S-3

4 Table S2 Comparison of the glucose sensing capabilities of the as-synthesized mesoporous iron oxide with previously reported materials. Materials Detection s LOD (mm) Reference Fe 2 O 3 Colorimetric and electrochemical This work PDI-Fe 3 O 4 Colorimetric Au nanoclusters Fluorescence Fe 3 O 4 Colorimetric Graphene oxide Colorimetric Cu 2+ -modified graphene oxide Fluorescence Au nanoparticles Colorimetric Carbon nanodots supported on Ag nanoparticles Fluorescence S-4

5 Figure S1 Gel-permeation chromatography (GPC) curve of poly(acrylic acid-b-ethylene glycol) (PAA-b-PEG) obtained using a phosphate buffer (ph 8) containing 10 vol% acetonitrile as an eluent at 40 C. The elution curve at 17.2 min was the solvent peak. Figure S2 1 H NMR spectra of (a) poly(acrylic acid-b-ethylene glycol) (PAA-b-PEG) in DMSO-d 6 at room temperature and (b) poly(styrene-b-acrylic acid-b-ethylene glycol) (PS-b-PAA-b-PEG) in DMSO-d 6 at 120 C. S-5

6 Figure S3 Hydrodynamic radius (R h ) distribution of poly(styrene-b-acrylic acid-b-ethylene glycol) (PS-b-PAAb-PEG) in pure water at 25 C. Figure S4 A typical TEM image of the spherical micelles formed by the PS-b-PAA-b-PEG triblock copolymer (inset showing the size distribution histogram of the micelles). S-6

7 Figure S5 Low-magnification SEM image of the mesoporous iron oxide calcined at 400 C. S-7

8 References 1. Roy, A.; Sahoo, R.; Ray, C.; Dutta, S.; Pal, T., Soft Template Induced Phase Selective Synthesis of Fe 2 O 3 Nanomagnets: One Step towards Peroxidase-Mimic Activity Allowing Colorimetric Sensing of Thioglycolic Acid. RSC Adv. 2016, 6, Gao, L.; Zhuang, J.; Nie, L.; Zhang, J.; Zhang, Y.; Gu, N.; Wang, T.; Feng, J.; Yang, D.; Perrett, S.; Yan, X., Intrinsic Peroxidase-Like Activity of Ferromagnetic Nanoparticles. Nat. Nanotechnol. 2007, 2, Dutta, A. K.; Maji, S. K.; Srivastava, D. N.; Mondal, A.; Biswas, P.; Paul, P.; Adhikary, B., Peroxidase- Like Activity and Amperometric Sensing of Hydrogen Peroxide by Fe 2 O 3 and Prussian Blue-Modified Fe 2 O 3 Nanoparticles. J. Mol. Catal. A Chem. 2012, 360, Zhang, X. Q.; Gong, S.-W.; Zhang, Y.; Yang, T.; Wang, C. Y.; Gu, N., Prussian Blue Modified Iron Oxide Magnetic Nanoparticles and their High Peroxidase-Like Activity. J. Mater. Chem. 2010, 20, Chaudhari, K. N.; Chaudhari, N. K.; Yu, J. S., Peroxidase Mimic Activity of Hematite Iron Oxides (α- Fe 2 O 3 ) with Different Nanostructures. Catal. Sci. Technol. 2012, 2, Chen, M.; Sun, L.; Ding, Y.; Shi, Z.; Liu, Q., N,N -Di-Carboxymethyl Perylene Diimide Functionalized Magnetic Nanocomposites with Enhanced Peroxidase-Like Activity for Colorimetric Sensing of H 2 O 2 and Glucose. New J. Chem. 2017, 41, Wang, L. L.; Qiao, J.; Liu, H. H.; Hao, J.; Qi, L.; Zhou, X. P.; Li, D.; Nie, Z. X.; Mao, L. Q., Ratiometric Fluorescent Probe Based on Gold Nanoclusters and Alizarin Red-Boronic Acid for Monitoring Glucose in Brain Microdialysate. Anal. Chem. 2014, 86, Wei, H.; Wang, E., Fe 3 O 4 Magnetic Nanoparticles as Peroxidase Mimetics and Their Applications in H 2 O 2 and Glucose Detection. Anal. Chem. 2008, 80, Song, Y.; Qu, K.; Zhao, C.; Ren, J.; Qu, X., Graphene Oxide: Intrinsic Peroxidase Catalytic Activity and Its Application to Glucose Detection. Adv. Mater. 2010, 22, Wang, S.; Cazelles, R.; Liao, W. C.; Vazquez-Gonzalez, M.; Zoabi, A.; Abu-Reziq, R.; Willner, I., Mimicking Horseradish Peroxidase and NADH Peroxidase by Heterogeneous Cu 2+ -Modified Graphene Oxide Nanoparticles. Nano. Lett. 2017, 17, Jv, Y.; Li, B.; Cao, R., Positively-Charged Gold Nanoparticles as Peroxidase Mimic and Their Application in Hydrogen Peroxide and Glucose Detection. Chem. Commun. 2010, 46, Ma, J. L.; Yin, B. C.; Wu, X.; Ye, B. C., Simple and Cost-Effective Glucose Detection Based on Carbon Nanodots Supported on Silver Nanoparticles. Anal. Chem. 2017, 89, S-8