(IMAGE) Science China Press Caption On the left, it is the schematic of porous microneedle patch fabrication, CAR T cell loading and implant of CAR T cell within the tumor bed after surgery. On the right, it is the distribution of CAR T cells (red) in the solid tumor with porous microneedle delivery or intratumor injection. Photo credit: Hongjun Li and Zhen Gu. Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.