Hexane

Oleylamine (OAm, >70%) and hexane (99.5%), were both purchased from Tokyo Chemical Industry Co. Ltd., Shanghai. Pt(acac)₂ (99.99%), Nafion (5% w/w solution) were all obtained from Alfa Aesar. Ammonium fluoride (≥96%), Ammonium chloride (≥99.5%), Ammonium bromide (≥99%), chloroform (≥99%) and ethanol (≥99.5%) were all purchased from Sinopharm Chemical Reagent Co. Ltd. All the chemicals were of analytical grade and used as received without further purification.

Iron acetylacetonate (Fe(acac)₃), cobalt acetylacetonate (Co(acac)₂), phenyl ether, benzyl ether, oleic acid (OA), and absolute ethanol were obtained from (ACROS ORGANIC, Morris Plains, NJ, USA), Tungsten hexachloride (WCl₆) and 1-octadecene were purchased from (Alfa Aesar Inc., Haverhill, MA, USA), Oleylamine (OAm), hexane, ethylene glycol, 3-(3,4-dihydroxy)hydrocinnamic acid (DHCA), tetrahydrofuran (THF), NaOH, and phosphate buffered saline (PBS, concentration of PO₄²⁻ ions (0.0067 M) were acquired from Tokyo Chemical Industry (TCI Co, Tokyo, Japan), (Fisher chemicals, Pittsburgh, PA, USA), (J.T.Baker, Phillipsburg, NJ, USA), (Sigma Aldrich, St. Louis, MO, USA) (ECHO CHEMICAL CO., LTD., Taipei, Taiwan), (SHOWA Chemical, Tokyo, Japan), and HyClone^TM, Marlborough, MA, USA) respectively. The above chemicals were used without further purification. The 3-[4,5-dimethylthiazol-2yl]-2,5-diphenyl tetrazolium bromide (MTT) and Dulbecco’s Phosphate Buffered Saline (DPBS) were purchased from (Sigma Aldrich, St. Louis, MO, USA).