A Review of Current Research into the Biogenic Synthesis of Metal and Metal Oxide Nanoparticles via Marine Algae and Seagrasses

Table 1

A selection of metal and metal oxide nanoparticles biosynthesized via marine alga.

Material	NP	Size (nm) & shape	Marine alga	Ref.
Metals	Ag	3 to 44, spherical and cubic	Codium capitatum	[95]
	Ag	30, spherical	Spirogyra insignis	[96]
	Ag	5 to 35, spherical	Padina tetrastromatica	[97]
	Au	8 to 15, spherical	Sargassum wightii Greville	[98]
	Au	6 to 10, spherical & triangular	Turbinaria conoides	[99]
	Au	18.7 to 93.7, spherical	Stoechospermum marginatum	[100]
	Pd	2 to 15, spherical	Chlorella vulgaris	[101]
	Pd	4 to 6, spherical	Laminaria digitata	[102]
Metal oxides	Cu2O, CuO	5 to 45, spherical	Bifurcaria bifurcata	[103]
	Cu/Cu2O	53, spherical	Kappaphycus alvarezii	[104]
	Fe3O4	18 ± 4, cubic	Sargassum muticum	[65]
	ZnO	3 to 57, hexagonal	Sargassum muticum	[105]
	ZnO	18 to 50, hexagonal	Gracilaria gracilis	[106]