2 Experimental 2.1 Materials and apparatus Cetyltrimethylammonium bromide (98%, CTAB), triethanolamine (TEA), dimethylformamide (DMF), dimethyl sulfoxide (DMSO), hydrochloride acid (HCl), ethanol, glutathione (GSH), N-hydroxysuccinimide, tetraethyl ortho silicate (98%, TEOS), N, N-dicyclohexyl carbodiimide (DCC), mercapto propyl trimethoxy silane (MPS), dithiothreitol (DTT), citric acid, and phosphate buffer saline (PBS, pH 7.4) were prepared from Merck Company (Darmstadt, Germany)
Freezing and Thawing Freezing : Freeze the aliquots quickly by placing them in an ethanol/dry ice bath or a specialized freezer rack to avoid degradation
Peptides, whether for research or therapeutic applications, are delicate biomolecules that require meticulous storage conditions to preserve their structural integrity and bioactivity
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