BIOL 4376 Final: disperse system

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Published on 29 Jul 2020
School
Temple University
Department
Biology
Course
BIOL 4376
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chapter
Review Anonyms LLiquid ssolid ss semiso
DISPERSE SYSTEM oil Ainternal
phaseerexternal
p
wwater reqrequire
Definition2or
more
physicallyimmiscible
phases
dispersed
phase units in
discrete
units
withindispersingphase
I
_Dispersed
Internal
Discontinuous
Phase
Dispersing
lexternall
continuous
phase
2Classification
Bysize moleculardispersion colloidaldispersion'scoarse dispersion
Cclnm gum osnm 70.5nm
Leg
emulsionsuspension
eg
protein
1
polymer
soft cwuipped
cream
mayo
BySnteraction lyophilic eg
gelatin 1Lyophobic legcolloidal charcoal
I1
some
loves
solvent saute
hate
solvent
Byphase suspension solid
CssinLiga
liqemulsion
CLinLego
ion
w
semi
solid notpourablegHow cow
shear
stress
detail
later as gointmentuinss uol.noninsssgYffffobnonYwwa
uses
section cream
uinssmoi
now
paste
isinso
Gee
caganic
molecules interpenetrated
by4
Town or
in
viscousis
aerosol
eelsina
Foam
conin a
nano
medicine aliposomes
3Preparation Goalcreatesmalldroplets
Grinding
pupae
compounding
mixing
stirring
extrusion
cam
some
turn
auers aposome
common
condensation1
precipitationmemodcaryopnobic
conoids
mescenaneouses
pray
dying
intrasonicalia
paternal
phase
external
phase
4Emulsions An
example
of
dispesemsyshms
whichwefocus
onin
thischapter
emulsion
Types
Yuein
liqor
cue
insemisolid
cold morecommon
Cbc
external
phaseiswater
socan
beused
toineomaeybe
dissolves
inblood
lait
mummy
lotions
creams
inward nonocclusive
water
washable
co less
common
externalocclusive put
drop
gamesion
in
www.as.riast ep
it
spreads
going
in
www.i
and
it is water
cause
www.otese
aoaeeau
emulsion
is aorwho spreads
say
www.aecauseexemaepnasecoioanidswaew coin
Multiple Ifirst
heardphase
app
protects
me
drug
agents dissolvedin2nd
zoo
cannot
escape
helps
incontrolleddelivery
of
biologicallyactive
compounds
leg
proteins
water
sauce
drug
agents
kept
iuadbcqyaopnobicca.is
surrounding
eager
cons preparation neg 2step emulsification
stability issue collapse easily
aMicro
emulsion Pro Fne droplets
translucentappearances
con needmoresurfactantstostabilizethis emulsion so lower
shelf life
Emulsion Uses
Liq Emulsion LiqinLiq
emulsions
can
be
given
inall routes
of
Administration oral
topical
parenteral
Emulsionsspecially
useful
foradministering oEwdrsoluble
components
inbody
I
gMineral
oil
Cas
laxatives
ingphase
w
effu
on
Iconicosienoidscasopthalmics
Tpncinnaeipids
Cream Er Lotion Liq
insemi
solid
Creams for smallarea applicationcanbe
wetorolwcm.ve
common
t
move oilphaseCvs
lotion retains
moisture
Cw
particles
cannot
escapeexternal
phase
CoD
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Document Summary

I chapterreview anonyms l liquid s solid ss semiso. By phase suspension solidcssinliga liqemulsionclinl egoionw semisolid notpourableghow cowshearstress as g ointmentu inss uol. noninsssgyffffobnonywwa sautehatesolvent. 4 emulsions anexampleofdispesemsyshmswhichwefocusoninthischapter emulsiontypesyueinliqorcueinsemisolid cold morecommoncbcexternalphaseiswatersocanbeusedtoineomaeybedissolvesinbloodlait inward nonocclusivewaterwashable co lesscommonexternalocclusive lotionscreams mummy causewww. oteseaoaeeauemulsionis a or who putdropgamesioninwww. as. riast itspreadsgoinginwww. iandit spreadssay www. aecauseexemaepnasecoioanidswaew ep is water coin. I firstheardphaseappprotectsmedrugagents dissolvedin2ndzoo helpsincontrolleddeliveryofbiologically preparation neg 2 step emulsification activecompoundslegproteins stability issue collapse easily con needmoresurfactantstostabilizethis emulsion a microemulsion pro fne dropletstranslucentappearances. Ewdr solublecomponentsinbody watersaucedrugagentskept iuadbcqyaopnobicca. is surroundingeager cannotescape so lowershelf life. Creams for smallarea application canbewetor olwcm. vecommon move oilphasecvslotion t retainsmoisturecwparticlescannotescapeexternalphasecod p. Lotions lessviscous morespreadable g lubricating canbeprepared from cream byaddingexternal phase butshelflife compromised b preservativegetsdilutedthatway. 201water so more greasifm viscous retainswater watertrappedin internalphase. 4 classes of o bases wakebasedon properties like watercontentchydrous or anhydrous coillovingorhydrophiliccuratorloving indirect offform www. pwtooitwwww. iia move. Hydrocarbonbasecoleaginousbase mostprotective anhydhydrophobicnonwashablepoordrugrelease emulsionbase oworwio hydrophilichydrous washablegooddayrelease egparaffincraseline wax egbeeswaxlanolin nothingtodownos containssurfactant eg. euarmyamslanolin. Formy us continuoussystem egg simpleoleaginoushydrocarbonbaseeyevaseline vanishingcream ow greaselesscreamformoisturizing cleansing coldcream whocoronointmentbases givescoolingsensationafterappli be aginernalphase evaporatesslowly formoisturizingsoaringremovalofmakeup ganswerssedativesnoroneyaromonicanyemulsionsmn.