Toxic solvent residues DMF (dimethylformamide) Known liver toxin Associated with reproductive toxicity Must be removed to extremely low limits in GMP drugs DCM (dichloromethane / methylene chloride) Probable human carcinogen Central nervous system depressant Dangerous even in small amounts if injected TFA (trifluoroacetic acid) Corrosive Can remain in peptides as unmeasured TFA salt Pharmaceutical products often convert TFA salts to safer counterions Without validated HPLC, mass spectrometry, and residual solvent testing, patients may be injected with harmful chemical contaminants
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After 1 h, the supernatant was collected and the islets were lysed in each well using RIPA buffer (50 mM TRIS Euromedex 200923-A, 150 nM NaCl Euromedex 1112-A, 0.5% Sodium deoxycholate Sigma 30970, 1% IGEPAL CA-630 Sigma I8896, 1% SDS Sigma L3771) under agitation during 30 min at 4C
PLGA/SBA-15 mesoporous silica composite microparticles loaded with paclitaxel for local chemotherapy
Arguin H, Bouchard DR, Labont M, et al
Liu et al., 2020