Direct q deionized water system

All regents were analytical purity and used without further purification. Potassium hexacyanoferrate(III) (K₃[Fe(CN)₆], 99%) was bought from Riedel-de-Haën. Trisodium citrate dihydrate (C₆H₅Na₃O₇‧2H₂O, 99%) was obtained from SHOWA. Hydrochloric acid (HCl, 36%) was bought from BASF. Manganese(II) acetate (C₄H₆MnO₄, 98%), and tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Ru(ddp)₃Cl₂, C₇₂H₄₈C_l2N₆Ru) were obtained from Alfa Aesar. Ethanol (C₂H₅OH, 99.9%) was purchased from J. T. Baker. Aminophenyl fluorescein solution (APF, C₂₆H₁₇NO₅, 98%) was acquired from Life Technologies. Cobalt(II) acetate (C₄H₆CoO₄, 99%), Nickel(II) acetate tetrahydrate (C₄H₆NiO₄‧4H₂O, 98%), Polyvinylpyrrolidone (PVP, (C₆H₉NO)n, M.W. = 55,000), hydrogen peroxide solution (H₂O₂, 30%), 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC, C₄₄H₈₄NO₈P, 99%), 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE, C₄₁H₇₈NO₈P, 99%), potassium iodide (KI, 99.5%), and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT, C₁₈H₁₆BrN₅S, 97.5%) were bought from Sigma-Aldrich. Water was obtained by using a Millipore direct-Q deionized water system throughout all studies.

All reagents were in analytical purity and used without further purification. Ethanol (C₂H₅OH, 99.9%) was purchased from J.T. Baker. Aminophenyl fluorescein solution (APF, C₂₆H₁₇NO₅, 98%) was acquired from Life Technologies. A hydrogen peroxide assay kit was acquired from abcam. CopperGreen dyes were acquired from Merck. Copper(I) bromide (CuBr, 98%), Octadecylamine (CH₃(CH₂)₁₇NH₂, 99%), trioctylphosphine oxide ([CH₃(CH₂)₇]₃PO, 90%), Oleylamine (CH₃(CH₂)₇CH=CH(CH₂)₇CH₂NH₂, 90%), cetyltrimethylammonium bromide (C₁₉H₄₂BrN), Polyvinylpyrrolidone (PVP, (C₆H₉NO)_n, MW = 55,000), hydrogen peroxide solution (H₂O₂, 30%), Sodium bromide (NaBr, 99.5%), ascorbic acid (C₆H₈O₆, 99%), cetyltrimethylammonium chloride (C₁₉H₄₂ClN, 25%), Sodium borohydride (NaBH₄, 99%) and 3-(4,5-dimethylthiazol-2-yl)−2,5-diphenyltetrazolium bromide (MTT, C₁₈H₁₆BrN₅S, 97.5%) were bought from Sigma-Aldrich. Water was obtained by using a Millipore direct-Q deionized water system throughout all studies.

All reagents were of analytical grade and used without further purification. Iron carbonyl (IC, Fe(CO)₅), hemoglobin (MW = 64,500), sodium hydrosulfite (Na₂S₂O₄, 85%), poly(vinyl alcohol) (PVA, MW = 47,000, 98%), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenylte-trazolium bromide (MTT, C₁₈H₁₆BrN₅S, 97.5%), and poly(lactic-co-glycolic acid) (PLGA, 50:50, MW = 24,000–38,000) were purchased from Sigma-Aldrich. Dichloromethane (CH₂Cl₂, 99.9%) was bought from ECHO. Water was obtained using a Millipore direct-Q deionized water system throughout all studies.