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Accumulation of gold-pHLIP (D, E, I, J, N, O) and gold nanoparticles (B, C, G, H, L, M) in tumor (A, B, C, D, E), kidney (F, G, H, I, J) and liver (K, L, M, N, O). Control tissues were taken from untreated mouse (A, F, K). The slices indicated by an asterisk were not treated with silver enhancement solution.
