A research group in China has developed a sensor that acts like ‘Velcro’ for prostate cancer cells, trapping them on a modified frosted glass slide so that they can be identified from blood samples. The low-cost method, reported in ACS Applied Materials & Interfaces, could help doctors better diagnose and monitor the disease. In men with prostate cancer, some tumour cells exit the prostate gland and circulate in the blood.

  Dual-ion batteries (DIBs) are a new type of battery developed in recent years, typically using graphite as both the cathode and anode material. DIBs can operate across a wider voltage window with safer performance, and are cheaper than conventional lithium-ion batteries.