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. 2019 Aug 14;2019:1529520. doi: 10.1155/2019/1529520

Figure 6.

Figure 6

MB-PDT targeted macrophages through electrostatic attraction. MB was cationic and could be attracted by negatively charged bacterial LPS, which made contact with TLR4 in macrophages when periodontitis developed. Therefore, MB could aggregate in macrophages.