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Scheme of MTB cells attached to the microbeads. The reaction has three steps: (a) carboxyl-modified PS microbeads 2 μm in diameter were reacted with staphylococcal protein A using NHS and EDC; (b) the resulting microbeads were used to capture the antibody against MO-1; and (c) the antibody-modified microbeads were attached to the MO-1 cells.
