搜索结果: 121-135 共查到“国际动态 细菌学”相关记录264条 . 查询时间(1.936 秒)
严重烧伤或导致“坏细菌”接管肠道
严重烧伤 细菌
2015/7/15
有过严重烧伤经历的人会存在发生一系列并发症的风险，这背后可能还有一些潜藏在人体深处的其他原因：一项新研究发现，烧伤可能会改变伤者肠道的细菌群，并由此导致感染风险增加。
Environmentally Friendly Lignin Nanoparticle ‘Greens’ Silver Nanobullet to Battle Bacteria
Environmentally Friendly Lignin Nanoparticle Greens Silver Nanobullet Battle Bacteria
2015/8/4
Silver nanoparticles have antibacterial properties, but their use has been a cause for concern because they persist in the environment. Here, we show that lignin nanoparticles infused with silver ions...
杜兰大学因危险细菌逃逸暂停风险性研究（图）
杜兰大学 细菌 美国
2015/3/5
一项关于病原体逃出美国杜兰大学某研究室的调查，导致该实验室涉及调节生物制剂的研究全部暂停。图片来源：TULANE PUBLIC RELATIONS
在一种危险的细菌从美国一个戒备森严的实验室逃逸之后，联邦官员上个月停止了杜兰大学相关风险性病原体研究，此次事件留下的问题是正在进行的调查进展如何？是否存在广泛风险？
Researchers from North Carolina State University have developed a technique that co-opts an immune system already present in bacteria and archaea to turn off specific genes or sets of genes – creating...
Hot-spring bacteria reveal ability to use far-red light for photosynthesis（图）
far-red light photosynthesis
2014/8/26
20 August 2014 — Bacteria that grow in environments enriched in far-red light use a previously unknown process for harvesting energy. This discovery lays the foundation for further research aimed at i...
巴西研制出人造蜘蛛丝
巴西 人造蜘蛛丝 大肠杆菌
2014/8/4
巴西基因资源与生物技术研究所的科研人员近日成功在实验室内制作出人造蜘蛛丝，他们相信这是一项具有很高商业应用价值的科研成果。据该项目研究人员介绍，该实验所需的蛛丝蛋白是在实验室中借助大肠杆菌合成的。科研人员将大肠杆菌稀释于液体介质中以合成具有特定DNA序列的蛛丝蛋白，然后借助一个特殊注射器获取蛋白纤维。通过这种方法制成的人造蛛丝的直径约为40纳米，比天然蛛丝粗10到20倍。今后，科研人员还将测试这种...
A University of Queensland student has taken out the prestigious Rolex Laureate Award for Enterprise for his innovative work to protect human health from the threat of antibiotic resistant superbugs.
University of Queensland researchers have discovered antibiotic-resistant bacteria in the Middle East which is cloaking itself in genetic material to avoid detection and placing the population at incr...
研究揭示细菌或可清除泄漏地区污染物
细菌 泄漏地区 污染物 甲烷
2014/5/28
2010年4月，“深水地平线”油井泄漏事故发生后，约40万吨甲烷流入墨西哥湾。许多科学家担忧这些甲烷会对该地区的生态环境造成长期影响。但后来，研究者惊讶地发现以沼气为生的细菌在当年8月之前就已经将这些污染物基本处理完毕。但是，一项新研究显示，沼气细菌只能处理约一半沼气。美国俄亥俄州佐治亚大学微生物地球化学家兼海洋学家Samantha Joye领导的研究小组分析了2010年3月~12月10个墨西哥湾...
Programming living cells offers the prospect of harnessing sophisticated biological machinery for transformative applications in energy, agriculture, water remediation and medicine. Inspired by engin...
An international study led by The University of Queensland has tracked a potentially devastating multi-drug resistant E. coli strain that is only one gene away from being resistant to almost all antib...
Environment influences ability of bacterium to block malaria transmission（图）
Environment influences malaria transmission
2014/3/20
The environment significantly influences whether or not a certain bacterium will block mosquitoes from transmitting malaria, according to researchers at Penn State University
Pigment or Bacteria? Researchers Re-examine the Idea of ‘Color’ in Fossil Feathers（图）
Pigment Bacteria Re-examine Color
2014/3/20
Paleontologists studying fossilized feathers have proposed that the shapes of certain microscopic structures inside the feathers can tell us the color of ancient birds. But new research from North Car...
Researchers find that going with the flow makes bacteria stick（图）
bacteria stick Researchers
2014/3/20
In a surprising new finding, researchers have discovered that bacterial movement is impeded in flowing water, enhancing the likelihood that the microbes will attach to surfaces.
Researchers led by Ken Shepard, an electrical engineering and biomedical engineering professor at Columbia University School of Engineering and Lars Dietrich, a biological sciences assistant professor...