Sodium tetrachloropalladate na2 pdcl4

Lipase B from Candida antarctica (Lipozyme® CALB), Thermomyces lanuginosus lipase (Lipozyme® TL 100L, TLL), catalase from Aspergillus niger (Catazyme® 25L, CAT), and β-galactosidase from Kluyveromyces lactis (Lactozyme® pure 6500L, LAC) solutions were from Novozymes (Denmark). 4-Methoxybenzenediazonium tetrafluoroborate (MBDFB), iodobenzene, palladium acetate, sodium tetrachloropalladate (Na₂[PdCl₄]), and CuSO₄·5H₂O were from Sigma-Aldrich (now Merk). N-Acetyl-l-tryptophan methyl ester (TrpOMe) was from Alfa Aesar. Methanol and acetonitrile of HPLC grade were purchased from Scharlab (Scharlab, S.L., Barcelona, Spain). Cu-FOS2 and Cu-NR hybrids were synthesized following the previously reported strategy.^{18 (link)}

Commercial grade Basotec G+ (BASF, Schwarzheide, Germany) Melamine (ME) foams with very high porosity (0.994), open cellular structure, and a broad cell size distribution (average cell bellow 500 µm) were kindly provided by LAPE HD Srl (Empoli, Italy). PDMS Sylgard 184 kit, composed by a PDMS base and a curing agent, was purchased from Dow Corning (Midland, MI, US). Chloroauric acid (HAuCl₄) and sodium tetrachloropalladate (Na₂PdCl₄) were purchased from Sigma-Aldrich (St. Louis, MO, US) and used as Au and Pd NPs precursors, respectively. Ethyl acetate and ethanol were also purchased from Sigma-Aldrich (St. Louis, MO, US) and used as solvents. Distilled water was employed for the rinsing of the foams.

The organic solvents heptane, toluene, xylene, and cyclohexane were purchased from Romical, along with chemicals and laboratory equipment. Poly(1-vinylpyrrolidone)-graft-(1-hexadecene) co-polymer (containing 80% by weight of C₁₆ α-olefin and 20% by weight of polymerized vinylpyrrolidone) (Agrimer AL-22) was purchased from International Specialty Products (ISP). Bis-poly(ethylene glycol)/poly(propylene glycol)-14/14 dimethicone (ABIL EM 97) was purchased from Evonik. Poly(ethylene glycol) 200, sodium tetrachloropalladate (Na₂PdCl₄), dioctyl sulfosuccinate sodium salt (AOT), sorbitan monooleate (span 80), poly(ethylene glycol) oleyl ether (brij 92v), branched poly(ethylene amine) 800, 2,2′(ethylenedioxy)bis(ethylamine), hexamethylenediamine (HMDA), and diethylenetriamine (DETA) were purchased from Sigma Aldrich-Merck. Polymethylene polyphenyl isocyanate (PAPI 27) was contributed by FMC Corporation. Toluene-2,4-diisocyanate (TDI) was purchased from Acros Organics. All substrates were purchased either from Alfa Aesar (Tewksbury, MA, USA) or Sigma Aldrich-Merck (Budapest, Hungary).