Chinese scientists develop bionic nanodevice to combat breast cancer
Chinese scientists have developed a bionic nanodevice that could provide a strategy for targeted therapy for metastatic breast cancer.
Scientists from the Shanghai Institute of Materia Medica under the Chinese Academy of Sciences have constructed a nanodevice, named rHS-DTX, which has a red blood cell coating and can be sent into the body. Their research was published in Advanced Functional Materials on March 1.
The device has been tested on metastatic breast cancer in mice, and achieved a tumor inhibiting rate of 98.2 percent and a lung metastasis suppression rate of 99.6 percent. No severe toxicity was observed in the major organs and blood of the mice.
Breast cancer is the most common cancer in women worldwide, and there is currently no cure for metastatic breast cancer.
Chemotherapy is still the main treatment for primary tumors and metastasis of breast cancer, but it is not able to effectively differentiate cancer cells from normal cells. The new nanodevice has shown a high efficacy in suppressing targeted tumors.
Carbon dioxide emissions are set to rise this year after a three-year pause, scientists said at UN climate talks on Monday, warning that “time is running out”, even as White House officials used the occasion to champion the fossil fuels that drive global warming.
CO2 emissions, flat since 2014, were forecast to rise two per cent in 2017, dashing hopes they had peaked, scientists reported at 12-day negotiations in the German city of Bonn ending on Friday.
“The news that emissions are rising after a three-year hiatus is a giant leap backward for humankind,” said Amy Luers, a climate policy adviser to Barack Obama and executive director of Future Earth, which co-sponsored the research.
Global CO2 emissions for 2017 were estimated at a record 41 billion tonnes.
China has recently seen an increase in research applying nanotechnology to medical treatments.