时间:2018-12-02 作者:英语课 分类:Scientific American(十二)月


英语课

nobody likes getting shots, but what if you could make the needles so tiny that they broke skin painlessly. engineers from top university have created such micro needles, made from major protein in silk, fibrolin. the work is in the journal of advanced functional 1 materials. The researchers created models for arrays of needles just 500 microns tall and 10 microns wide. that’s tenth width of the average of human hair. they then put a solution of fibrolin mixed with the drugs in the molds. the resulting microneedles are dried and undergo for the processing. in tests, a patch containing numerous microneedles successfully released the drug. which maintained its biological activity. the tiny needles are too short to reach the nerves under the skin, so they can deliver drugs without pain of traditional shot. even better, they can gradually release the medication over time.while skin patches and slow release pills are currently use for this purposes. they only work with certain kinds of medication. the new microneedle system could make gradual delivery of many kinds of drugs smooth as silk.



1 functional
adj.为实用而设计的,具备功能的,起作用的
  • The telephone was out of order,but is functional now.电话刚才坏了,但现在可以用了。
  • The furniture is not fancy,just functional.这些家具不是摆着好看的,只是为了实用。
标签: SSS 托福素材
学英语单词
.es
4-oxypentanoic acid
addendum to charter party
advance book reporting service
agss type-specific connection point
albularyo
Alcatrazes, I.de
alkali-antimonides
alprazoplam
amae
Ampullariella
ante-dateds
antimony(iii) sulfate
aretch
back five
bank settlement plan
bedsore
Blanquilla, I.
block-booking
Brayon
Chiness speculum metal
choleric
circle of keys
cobalt brown
Colourpoint
conditional command
cordless iron
cyanomethemoglobin
deep sound field
dejectment
descriptive session
diplomatized
electro-galvanized steel wire
emergency position-indicating radiobeacon
enmisted
evaluation well
exact sequences
fayetta
ferroelectric storage
finned array
frequency-selective fading
good technical condition of vehicle
graphic investigation
gurgitation
heroico
high quality
identation
implicitedly
infrared radiative cooling
investured
knitted shirt
Latrecey
life nurturing
masa
mash liquor
middle mediastinum
monchy
multifocus viewer
multiplication division unit
NLT not later than
nutrient demanding crop
oxaldehydic acid
Panguitch
percolate through
pieronis
polydelphous
precatalytic
psychological motivation
pusds
pyrrolizidine
rainfall-temperature diagram
rated power operation
reatas
relative bending radius
resistant endospore
response matrix
rhizophydium globosum
rhus delavayi var.quinquejuga rehd. & wils.
ring up engine
saxicoles
single steel intrauterine device
slow axis
spline broach
stable coast
staggered fan
Standard Performance Evaluation Corporation
stealth
steering-column bracket
stekkie
stiped
synovial cyst
tear along
the ish
tocopherylquinone
toggle type tablet machine
transfer voltage standard
trigonum vesic?
velocity inertial
Viccillin-5
watchstraps
waveguide lens antenna
yahgans