Standard chemotherapy hits the whole body like carpet bombing: both cancerous and healthy cells suffer. Scientists are hunting for more precise weapons — molecules that light up when they slip into a cancer cell's DNA, revealing its location. Such glowing probes could help doctors spot tumors early and even destroy them with pinpoint accuracy, leaving neighboring tissue untouched.

To build such a probe, you need to know in advance what color light it will emit. You can compute this on a computer, but the calculations are complex and costly. In the new study, the researchers took one specific molecule — a platinum complex that can wedge between the rungs of DNA like a bookmark between pages. They compared different calculation methods and found which ones give the most accurate glow color at a reasonable time cost.

The main takeaway: for rapid molecule screening, it's better to use a simplified method that isn't the crudest, one that errs about as much as the pricier ones. This lets you test many variants in a reasonable time without missing promising probes. The result: doctors get safer and more precise tools to fight cancer.