A high-magnification of the hydrogel (in blue) encapsulating T cell-activating platelets (in red) and nanoparticles that release a drug to inhibit tumor-boosting cells (in green). This gel inhibited the growth of cancer cells after surgical removal of different types of tumors.

The gel, tested in mice, releases drugs and special antibodies that simultaneously deplete immune-blocking cells called macrophages from the surgical site and activate T cells so they can attack cancer.

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Colon Cancer Cells

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