时间:2018-12-07 作者:英语课 分类:60秒科学


英语课

最新研制一种新的医疗设备,可以利用身体动作来充电。


Novel materials could allow the implantation of flexible, rechargeable batteries that would constantly recharge from the body's own movements--even just breathing. Cynthia Graber reports


Batteries add weight, and they need recharging. That’s serious business for implanted medical devices. When the batteries die, patients sometimes have to undergo another surgery. But what if there were a compact, flexible material that could harvest energy from the body’s own movement? That’s what Michael McAlpine’s lab at Princeton University designed.


He was recently named to Technology Review's list of 35 top innovators under the age of 35.


The key is a novel form of piezoelectric materials. These become electrically polarized when they’re subject to mechanical stress, and so movement or pressure can generate electricity. But they’re ordinarily made of hard, inflexible 1 materials, which are also usually toxic 2.


So McAlpine’s team created nanoscale piezoelectric devices. They’re sequestered 3 between layers of silicone. Which, as we know from breast implants 4, is both flexible and biocompatible.


At a recent talk, McAlpine said that one of the first commercial uses could be to replace batteries in kids’ LED-lit sneakers. But he hopes to see them one day power pacemakers. They could be implanted on the lungs. And so, to keep your heart beating, you’d just take a breath. Which is the usual procedure

 



1 inflexible
adj.不可改变的,不受影响的,不屈服的
  • Charles was a man of settled habits and inflexible routine.查尔斯是一个恪守习惯、生活规律不容打乱的人。
  • The new plastic is completely inflexible.这种新塑料是完全不可弯曲的。
2 toxic
adj.有毒的,因中毒引起的
  • The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
  • There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。
3 sequestered
adj.扣押的;隐退的;幽静的;偏僻的v.使隔绝,使隔离( sequester的过去式和过去分词 );扣押
  • The jury is expected to be sequestered for at least two months. 陪审团渴望被隔离至少两个月。 来自《简明英汉词典》
  • Everything he owned was sequestered. 他的一切都被扣押了。 来自《简明英汉词典》
4 implants
n.(植入身体中的)移植物( implant的名词复数 )
  • Hormone implants are used as growth boosters. 激素植入物被用作生长辅助剂。 来自《简明英汉词典》
  • Perhaps the most far-reaching project is an initiative called Living Implants From Engineering (LIFE). 也许最具深远意义的项目,是刚刚启动的建造活体移植工程 (LIFE)。 来自英汉非文学 - 生命科学 - 医学的第四次革命
学英语单词
a gemini
Addtl
aligning microscope
appoximate continuity
Arderone
auxiliary firing
body search
bonibells
bubble dancer
bus duct work
bustiers
cancelled ballot ticket
chip shell
coalign
cotton gatherer
crest angle
cronje
cubango
cut-off interval
cycloses
depilators
dip coating process
distance correcting mechanism of range-finder
DMZ hosts
dryhanded
dryness-moistening and phlegm-resolving prescription
Fergusonite-trihydrate
filament emission
fine and microstructure of ocean
galactaric acid
good-times
granados
half-duplex
hyaline cell
hydroxyphenylarsonic acid
inferior carotid ganglia
integrated sounding system (iss)
interface description language
invisible runners
kakortokite
keep your eye on the ball
Koch's node
larch bark extract
line-sequential color-television
liquid breakdown
liquidation statement
long summer
machine-readable texts
maintenance team
matako
mazurek
mesoporous molecular sieve catalyst
monascus
multirelation
Nea Dimmata
night-creams
Nocardiophage
nomo-
nonerupted deciduous teeth
nonreconstructive inversion
nuplex
Ojo de Laguna
Ollantaitambo
operating losses
palilalias
parturiates
party-man
pashminas
payment of royalty
pendulous axis
phylosopher
pickled
population distribution
position modulation
prediction accuracy
purified helium product cooler
repaneled
ruddys
Runamycin
serve the turn
shatterindex
side draw tray
skew pupils
sputtering deposition
stereoscopic rangefinder
sulfatidate
Szabo
tampulbolon
tautomerizm
telc
tilting prevention device
Timpas
to keep your eyes peeled
unchampioned
Uniloy
universal-joint journal
vaccary
Vsign
water-sop
Whitworth standard screw thread
young Turks