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- W2189051350 abstract "Thekinetics ofbacteriophage MS2,T2,andf2adsorption topowdered nitrocellulose anddisrupted Seitz Si filters atpH7weredetermined asafunction oftemperature. Datafromthese studies werecombined withdata produced inaprevious study onMS2adsorption toclay byStagg etal.(Appl. Environ. Microbiol. 33:385-391, 1977). Theseworkers studied theadsorption ofMS2tobentonite clay asafunction oftemperature. Datafrom boththis previous study andthecurrent onewereusedtocalculate thethermodynamic parameters ofvirus adsorption. Theresults showthat adsorption ofbacteriophages tothesolids tested isaphysical process (energy ofactivation, 40kcal/mol). The free energy ofactivation showedahighnegative correlation (r= -0.904, r2= 0.817) withthepercentage of virus adsorption tothesolids tested. Theenergy ofactivation washighly negatively correlated withthe percentage ofvirus adsorption tonitrocellulose andclay (r= -0.913, r2= 0.834) butpoorly correlated with thepercentage ofvirus adsorption todisrupted Seitz Sifilters (r= -0.348, r2= 0.121). Ingeneral, under conditions inwhichthepercentage ofvirus adsorption waslow,theenergy ofactivation, thefreeenergy of activation, andtheentropy ofactivation werehigh. Increasing thepercentage ofvirus adsorbed bychanging theadsorbing conditions orchanging theadsorbing solid decreased theenergy ofactivation, thefree energy of activation, andtheentropy ofactivation. Viruses havebeenfoundtoadsorb toavariety ofnatural solids suchassoils, clays, sludges, andsediments (2,5). Adsorption ofviruses tothesesolids influences boththe distribution andsurvival ofviruses intheenvironment (2,5). Viruses havealsobeenfoundtoadsorb tomanmadesolids suchasmicroporous filters (8,9).Since microporous filters arecapable ofrecovering viruses fromlarge volumes of water, adsorption ofviruses todifferent filters hasbeen examined insomedetail inother studies andhasbeenthe subject ofseveral reviews (2,5,8-10). Thesestudies have identified thefactors thatinfluence virusadsorption to solids. Ingeneral, virus adsorption tosolids isinfluenced by thenature ofthesolid (14), thetypeofvirus (6), andthe characteristics ofthesolution inwhichthevirus issuspended (3,4,13). Although thefactors influencing virus adsorption tosolids havebeeninvestigated inseveral studies, little information on thethermodynamic parameters associated withvirus adsorption isavailable (12,17).Therefore, thisstudywas undertaken todetermine thethermodynamic parameters of bacteriophage (MS2,T2,andf2)adsorption totwodifferent solids insolutions thateither promoted orreduced virus adsorption tothesolids. Theresults werecompared with values presented byStagg etal.(17) andwithvalues calculated fromdatapresented herein." @default.
- W2189051350 created "2016-06-24" @default.
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- W2189051350 date "1988-01-01" @default.
- W2189051350 modified "2023-09-27" @default.
- W2189051350 title "Activation Thermodynamics ofVirus Adsorption toSolidst" @default.
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