2015考研英语阅读医用植入设备_大学英语阅读

2015考研英语阅读医用植入设备

　　Other approaches could yield more energy. Some soil-dwelling bacteria have evolved todeposit the electrons from glucose oxidation onto iron molecules, which allows researchersto trick them into living on the anode of a fuel cell. A colony of microbes like these, properlyisolated from the host s immune system, might be coerced into trading electrons fornutrients from the bloodstream. The bacteria can renew their own enzymes, so such asystem should last indefinitely. But the idea of implanting a bacterial colony into a patientmight be a tricky one to get past medical regulators-not to mention public opinion.

　　其他一些方法则需要更多的能量。用一些土壤细菌将葡萄糖氧化过程所产生的电子安置在铁分子上，这样研究人员就可以诱使这些细菌存活在能量池的阳极上。像这样的克隆微生物，与寄主的免疫系统相分离，可能被迫的用电子与体液交换营养成分。细菌可以重新激活他们自身的酶，因此这样的系统能够永久的持续下去。然而将细菌克隆体移植进病人的身体这种想法可能无法通过医疗监管人员的监管，就更不要说公众舆论了。

　　A better idea might be to retrain some of the body s own cells to do the work. Just as anoutdated procedure called a cardiomyoplasty involved severing a seldom-used upper-backmuscle and wrapping it around the heart to assist in pumping blood, muscle fibres might beretrained to crank an electromechanical generator. Such a setup would be capable ofproducing enough electricity to drive even the most power-hungry of devices, like artificialhearts.