Vanderbilt Medical Center CHTN: N/A: Chemicals, peptides, and recombinant proteins; Dimethyl sulfoxide, ReagentPlus, ≥99.5%: Sigma-Aldrich: D5879-4L: Poly-L-lysine solution, 0.1% (w/v) in H 2 O: Sigma-Aldrich: P8920-500ML: 10× CODEX Buffer: Akoya Biosciences: 7000001: CODEX Assay Reagent: Akoya Biosciences: 7000002: Dumont Cover Slip Forceps ....