In both methods, the addition of methanol was important to induce a complete phase transfer of DDA-GSH-AuNCs into the organic layer, in agreement with previous reports in which common solvents were used to facilitate phase transfer of nanoclusters and nanoparticles across biphasic liquid systems 32,46,47,48,49
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Here's a comprehensive list: Chemical Reagents Fmoc-protected amino acids Coupling reagents (e.g., HBTU, HATU, or DIC) Solvents (e.g., DMF, DCM, NMP) Deprotection reagents (e.g., piperidine) Cleavage cocktail components (e.g., TFA, water, triisopropylsilane) Equipment Peptide synthesizer (automated or manual) HPLC system for purification Mass spectrometer for peptide characterization Lyophilizer for freeze-drying Rotary evaporator Analytical balance Consumables Solid support resin (e.g., Wang resin) Reaction vessels Filtration apparatus HPLC columns Having these materials on hand is crucial for the successful preparation of BPC 157 powder
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This graduated approach reduces purging intensity