J.CHEM.SOC.,CHEM.COMMUN.,I9951281OntheProductionofanAqueousColloidalSolutionofFullerenesGrigoriyV.Andrievsky,”MarinaV.Kosevich,*bOlehM.Vovk,bVadimS.ShelkovskybandLyudmilaA.VashchenkobaInstituteforTherapyoftheAcademyofMedicalSciencesofUkraine,2aPostyshevastr.,310116,Kharkov,UkrainebVerkinInstituteforLowTemperaturePhysicsandEngineeringoftheNationalAcademyofSciencesofUkraine,47LeninAvenue,Kharkov310164,UkraineTheformationofastablefinelydispersedaqueouscolloidalsolutionoffullerenesC60andC70withparticlesizesS0.22pmisreportedandhypothesesconcerningthenatureoftheaqueoussolutionsarediscussed.Oneofthechallengesinfullerenechemistryistheproductionofsolutionandthey-cyclodextrin-fullerenesolutionsarisesduetosolutionsinpolarsolvents.Anumberofrecentapproaches,thepresenceoflight-scatteringparticles,thisbeingmorebasedontheassumptionofthehighhydrophobicityofpurelypronouncedforthelatter.Itshouldbenoted,however,thatcarbonmolecules,embraceatraditionalsetofmethodsforaggregationoffullerenespersetakesplaceevenintruesolubilizationofhydrophobiccompoundsinwater:synthesisofsolutionsinnonpolarsolvents,whichwassuggestedtobeamorehydrophilicderivatives,formationofhost-guestinclusionreasonforanomaliesinthetemperaturedependenciesoftheircomplexes,e.g.withy-cyclodextrin,1,2generationofsolssolubility.6y-Cyclodextrinitself,beinginconcentrationsclosestabilizedbydedicatedadditives,productionofliposomes,tosaturation,canformlight-scatteringaggregateswithdimen-micelles,vesiclesetc.However,theideaofhydrophobicitywassionsoftheorderof0.2pm,7whichmaycontributetothebandcloselyconnectedwiththeearlyanticipationofchemicalbroadeningeffect.inertnessoffullerenes,whichwasfoundnottobesoupontheThe252CfPlDmassspectrumofthefullerene-y-cyclodextrindiscoveryofavarietyofchemicalreaction^.^ThehighelectronsolutionissimilartothatinFig.1butalsoshowssignalsaffinityoffullerenesfacilitatesnotonlycovalent,butalsocharacteristicofy-cyclodextrin(y-CD)viz.,y-CD.Na+,y-charge-transferanddonor-acceptorinteractionswit