24 S : BLOMATEQLALS
,이 / 23 : wha 과1 s a blomaterna (
?
.
bldmate1al :
-
1974 ; a systematsCally Pharmacologlcally mert suostaacedegigned for Implastatown witmim aor incorowratin withln Mny
a systems
,
:
causeno respansewithin
"
.
pert " tissue
-
1986 : a nonviaole materlal used in a meokal device, intended tointeractwitn blological systemas
"
. IMluae " Interaction
-
1999 ; maternal intened to interface n bological susteams to evaloate ,
treat ,
augmert ,
of replace tisswe orgas or fanction af body
.
bloInertness → b ( oactv ty → regreratefnchonal + Issue
blomaterlals
'
.
tooay s
-
meart vaive prostheses -
total hle repla cement
.
reeuires re 미acement . w 10 -
15 years
,
IMplaats fail
.
(arbons
,
metals ,
elastomers Plas +iCs ,
-
1 oogeriny
,
faorics ,
anlmal //. fissues . ti ( VM , stalnkess steel ,
specdal migh - strengthalloss
.
ProbIeMS : (eramics
,
( omposites .
UHranigh molecuar weight boyethylre
-
novetion of 4 o 00 ccots
-
mechanlcal failure polymerle cemnts
-
degereration of vaive tassue -
nfection .
Metal Un mefal - -
- 7 surrosiom 3metal lons maycauserespons
-
certal Implaats -
Intraocular lens
.
luss of tissuesueporfs looseling .
MUst Ge + Hasoarent
.
I nfection -
poly ,
siscone elastomers soff acryllc poymors hygrogels
,
,
.
Issues w
lony -
ferm cyallc loaolng .
Inf ( ammatory cels will miglate to surface a ccoud visin
1 /a 3 . basic maferal Propertles
o
emergert posertles :
a property a coection mas but the Indlviovas ooes not
-
wacl i ssaity , but Na or eloes not exeress thls
"
Iater
"
-
H emerages
.
maternalsourceforolomedlcal aplicatiars
- Ip oroar : sin thetic polymers metals ceramics ,
comoosItes dologl Caly oeriwedmaterㆍ
. , .
-
1 unlC bonds ( Eharge elecfrostatic
,
(가 .
] -
Metallic oonds ( good e wonor )
drectional Cexist ayway )
"
of electrons
"
-
ounos are non -
.
sea
verystructured: stronay out ortthe . MoNOIvectional
ooor canductors be cnarges occory It lbuse e coud : malleable 3 gwd ( unauctors
-
ceramscs liunuct lonic covalert ) -
netals ( mefallic )
.
KMOwn for ow deformatilify .
curosive. ductile
hign esastic mooulus
hard , orttle owduetility stalnless ste외 + 사과wM ,
alloys
, ,
.
orthopedic uses cardlo vascular-
J 0nt prostheses t oune renewal
. (aroons alum ( na [a phos Bnates ,
,
, ,
.
JaNts [emrt, vertal lmplants dertal art ,filcaalheart βarts/ ualv
, ,
, -
covalent bond
.
non meral
-
atwms
-
Bolymers [ long covalent )
M ( ybly feformabie ovctile low exastic nowlus, weak
polymers ; Inearchain / airectional
.
.
, ,
.
strong
.
Poyethylere Polytetra flouroetylenecollager chitosas ,sik
,
.
good deform atinal Eharacteristics .
(artilage replacemert ,vasular graf ,F sfacfold , wond oressinug
Les dve to electron sharing
-
wan dor waal s
-
mydroger bands
strength s reactivity are of greatest 1 M βortance
dvalt fiable mechanical Pro pertles
-
tersle strength , compressive festing smear testing vend tests viscoelastic behavior , ouctile s ortthe fracture
, , ,
pull sareeze move paralledverd vuscocitye elasticit yeah
stress Concen tratir fracture toughmess fatigue
,
,
stress magnlfled hwn repeated cyclin
4
leramic metal rolks mer (
Ook' s law( F = lkx) : wera solid material is sobjected to fensile force
,
hardness tran ↓ 지 H 's defurmatian is 0 ropurtional to the load applied
F
elastic modwlos um ↓ .
stress ( o ) =
/( cross secticnal 3 A
- Nm
- z
on Pa
β
no stergth [ε3 는
*
뙈 ∞
strain =
thelmalexβ us( -
f of same magnitule cas ererate diff stress levels oased an appled area
:stres
ductillty ↓ λ .
elastic Modulus /
stran
[ ONosIOM res / s .
↓ ↓ -
stiffness
srelpont
wear resls ↓ streayteh
desutimate
.
nyn
_
.
.
e. point iag : sglesdstress /ehastic
elea ,
couductivsty
s 없 lmit
density ↓ ↑ 뿅 volume
thermal comduct .
교 ↑ ↓ strain
.
BsastiC deformatioan:post yield - polnt , materal will notreturn to origlnal for
-
lOss of elasticity atter cossing ycelo βolht
-
permanent
EeraMLc
A stronages
net 리
-
coramic : hign stress ,
low stialn
orcttae a most ductile
B - metal : ignstress , highstran
hard fissue
ben
.
straln hardeling ; to mobility w/ stra
polymer
-
Bolyuer : IUW ε ,
.
Plastic oeforma+ Ion
,이 / 23 : wha 과1 s a blomaterna (
?
.
bldmate1al :
-
1974 ; a systematsCally Pharmacologlcally mert suostaacedegigned for Implastatown witmim aor incorowratin withln Mny
a systems
,
:
causeno respansewithin
"
.
pert " tissue
-
1986 : a nonviaole materlal used in a meokal device, intended tointeractwitn blological systemas
"
. IMluae " Interaction
-
1999 ; maternal intened to interface n bological susteams to evaloate ,
treat ,
augmert ,
of replace tisswe orgas or fanction af body
.
bloInertness → b ( oactv ty → regreratefnchonal + Issue
blomaterlals
'
.
tooay s
-
meart vaive prostheses -
total hle repla cement
.
reeuires re 미acement . w 10 -
15 years
,
IMplaats fail
.
(arbons
,
metals ,
elastomers Plas +iCs ,
-
1 oogeriny
,
faorics ,
anlmal //. fissues . ti ( VM , stalnkess steel ,
specdal migh - strengthalloss
.
ProbIeMS : (eramics
,
( omposites .
UHranigh molecuar weight boyethylre
-
novetion of 4 o 00 ccots
-
mechanlcal failure polymerle cemnts
-
degereration of vaive tassue -
nfection .
Metal Un mefal - -
- 7 surrosiom 3metal lons maycauserespons
-
certal Implaats -
Intraocular lens
.
luss of tissuesueporfs looseling .
MUst Ge + Hasoarent
.
I nfection -
poly ,
siscone elastomers soff acryllc poymors hygrogels
,
,
.
Issues w
lony -
ferm cyallc loaolng .
Inf ( ammatory cels will miglate to surface a ccoud visin
1 /a 3 . basic maferal Propertles
o
emergert posertles :
a property a coection mas but the Indlviovas ooes not
-
wacl i ssaity , but Na or eloes not exeress thls
"
Iater
"
-
H emerages
.
maternalsourceforolomedlcal aplicatiars
- Ip oroar : sin thetic polymers metals ceramics ,
comoosItes dologl Caly oeriwedmaterㆍ
. , .
-
1 unlC bonds ( Eharge elecfrostatic
,
(가 .
] -
Metallic oonds ( good e wonor )
drectional Cexist ayway )
"
of electrons
"
-
ounos are non -
.
sea
verystructured: stronay out ortthe . MoNOIvectional
ooor canductors be cnarges occory It lbuse e coud : malleable 3 gwd ( unauctors
-
ceramscs liunuct lonic covalert ) -
netals ( mefallic )
.
KMOwn for ow deformatilify .
curosive. ductile
hign esastic mooulus
hard , orttle owduetility stalnless ste외 + 사과wM ,
alloys
, ,
.
orthopedic uses cardlo vascular-
J 0nt prostheses t oune renewal
. (aroons alum ( na [a phos Bnates ,
,
, ,
.
JaNts [emrt, vertal lmplants dertal art ,filcaalheart βarts/ ualv
, ,
, -
covalent bond
.
non meral
-
atwms
-
Bolymers [ long covalent )
M ( ybly feformabie ovctile low exastic nowlus, weak
polymers ; Inearchain / airectional
.
.
, ,
.
strong
.
Poyethylere Polytetra flouroetylenecollager chitosas ,sik
,
.
good deform atinal Eharacteristics .
(artilage replacemert ,vasular graf ,F sfacfold , wond oressinug
Les dve to electron sharing
-
wan dor waal s
-
mydroger bands
strength s reactivity are of greatest 1 M βortance
dvalt fiable mechanical Pro pertles
-
tersle strength , compressive festing smear testing vend tests viscoelastic behavior , ouctile s ortthe fracture
, , ,
pull sareeze move paralledverd vuscocitye elasticit yeah
stress Concen tratir fracture toughmess fatigue
,
,
stress magnlfled hwn repeated cyclin
4
leramic metal rolks mer (
Ook' s law( F = lkx) : wera solid material is sobjected to fensile force
,
hardness tran ↓ 지 H 's defurmatian is 0 ropurtional to the load applied
F
elastic modwlos um ↓ .
stress ( o ) =
/( cross secticnal 3 A
- Nm
- z
on Pa
β
no stergth [ε3 는
*
뙈 ∞
strain =
thelmalexβ us( -
f of same magnitule cas ererate diff stress levels oased an appled area
:stres
ductillty ↓ λ .
elastic Modulus /
stran
[ ONosIOM res / s .
↓ ↓ -
stiffness
srelpont
wear resls ↓ streayteh
desutimate
.
nyn
_
.
.
e. point iag : sglesdstress /ehastic
elea ,
couductivsty
s 없 lmit
density ↓ ↑ 뿅 volume
thermal comduct .
교 ↑ ↓ strain
.
BsastiC deformatioan:post yield - polnt , materal will notreturn to origlnal for
-
lOss of elasticity atter cossing ycelo βolht
-
permanent
EeraMLc
A stronages
net 리
-
coramic : hign stress ,
low stialn
orcttae a most ductile
B - metal : ignstress , highstran
hard fissue
ben
.
straln hardeling ; to mobility w/ stra
polymer
-
Bolyuer : IUW ε ,
.
Plastic oeforma+ Ion
