当外科医生不能确定肿瘤的边缘时,问题出现了。切除过多,他们面临伤害病人的风险;切除过少,他们可能会留下一些癌细胞。现在,研究人员开发出一种外科手术刀,可以在切除组织时根据产生的烟立即断定该细胞是癌变的还是健康的。匈牙利化学家Zoltán Takáts在英国帝国理工学院的团队与该学院外科和癌症系主任、生物化学家Jeremy Nicholson一起在手术室测 The problem arises when the surgeon can not pinpoint the edge of the tumor. Excessive resection, they face the risk of injury to the patient; less resection, they may leave some cancer cells. Now researchers have developed a surgical scalpel that instantly determines whether the cell is cancerous or healthy based on the smoke it produces when the tissue is removed. The team of Hungarian chemist Zoltán Takáts at the Imperial College London, together with Jeremy Nicholson, a biochemist and director of the Department of Surgery and Cancer at the College,