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Fluorescence quenching of MPS-PPV as a function of quencher (methyl viologen) concentration: ◆—MPS-PPV polymer only; ▲—vaults combined with MPS-PPV; ■—crosslinked vaults combined with MPS-PPV; ●—vaults combined with MPS-PPV and then subsequently crosslinked. Steeper slopes in the above Stern-Volmer plot indicate more effective quenching. The vault/polymer concentration ratio was constant for all the mixture.
