Table 2.

Active/medical principle or a drug incorporated into composite membranes of chitosan and hyaluronan.

Group	Active/Medical Principle, Drug	Formal Charge	Water Solubility	References	Note
Mitochondrially targeted antioxidants	MitoQ	+	✓	[56]	Scavenger of O2●− anion radicals [57,58].
	SkQ a	+	✓		Scavenger of O2●− anion radicals [59].
Antioxidants	Edaravone		✓	[60,61]	Efficient free-radical scavenging properties [14].
	Glutathione	+	✓	[62,63]	Endogenous antioxidant, H atom and electron donor [21].
	Phosphatidylcholine dihydroquercetin	+	(✓)	[64]	Electron donor.
	Resveratrol		(✓)	[65]	Endogenous antioxidant, H atom and electron donor.
Varia	-			[66,67,68,69,70,71,72]	Wound dressing preparations.
	Captopril		✓	[73]	H atom donor.
	Thiocolchicoside		✓	[74]	Muscle relaxant with antiinflammatory and analgesic effects.
	Tiopronin		✓	[73]	H atom donor.

^a SkQ, analogously as MitoQ, is a proper mitochondrially targeted antioxidant for transdermal application.