ã€ALUMINIUM NETWORK】Academy of Military Medical Sciences announced today in Beijing that researchers from the Institute of Hygiene and Environmental Medicine of the Institute have undergone five years of experiments and discovered for the first time in the world that nano-alumina in water can transfer drug resistance genes from E. coli. The efficiency of Salmonella entry increased by 200 times. The Proceedings of the National Academy of Sciences of the United States focused on the results of this study with the topic of nano-alumina promote plasmid-mediated multi-drug resistant gene translocation across species.
At present, nanotechnology is gradually being applied to people's daily lives. At the same time, the safety of nanomaterials has also become one of the major issues for scientific research at home and abroad.
Alumina nanomaterials are applied to the purification of water sources because they can adsorb organic substances, heavy metals and other harmful substances in water. Researchers Qiu Zhigang and Yumei Yun from the research group Li Junwen found that the nanomaterials can significantly promote the transfer of drug resistance genes between bacteria.
At the same time, they also found that, even though different types of bacteria that were resistant to gene transfer in the past were difficult to occur, resistance genes also shifted under the action of alumina nanoparticles. Studies have confirmed that alumina nanoparticles have greatly accelerated the rate at which bacteria acquire resistant genes. In the past, it was believed that nanomaterials did not seem to correlate with bacterial resistance.
He Fuchu, president of the Academy of Military Medical Sciences, told reporters that the study is not only an original achievement in the field of bacterial drug resistance, but also a relatively new breakthrough in the field of nanomaterials biosafety research. It reminds people not only of the great positive impact of nanomaterials on economic and social development and human health, but also of the potential harm to nanotechnology and the ecology and the potential dangers of bacterial drug resistance transfer and spread.
He Fuchu said that in addition to nano-aluminum oxide, other nanomaterials also have the function of promoting the transfer of bacterial drug resistance. What kind of material can inhibit or prevent this property of nanomaterials? Is this property and mechanism of nanomaterials available? Important scientific issues such as being exploited and used need to be further cracked.
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