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  <xs:element id="ibrx_OperatingLeasePaymentsRelatedToOptionsToExtendLeaseTerms" abstract="false" name="OperatingLeasePaymentsRelatedToOptionsToExtendLeaseTerms" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="ibrx_LeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_LeaseLiabilityToBePaid" abstract="false" name="LeaseLiabilityToBePaid" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="ibrx_LeaseLiabilityTenantImprovementAllowanceReceivable" abstract="false" name="LeaseLiabilityTenantImprovementAllowanceReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="ibrx_OptionPeriodDomain" abstract="true" name="OptionPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_PeriodOneMember" abstract="true" name="PeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_PeriodTwoMember" abstract="true" name="PeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_PeriodThreeMember" abstract="true" name="PeriodThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_PeriodFourMember" abstract="true" name="PeriodFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_FairValueStockPurchaseOptionRevenueInterestPurchaseAgreementMember" abstract="true" name="FairValueStockPurchaseOptionRevenueInterestPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_RevenueInterestPurchaseAgreementPaymentsPercentageOfNetSales" abstract="false" name="RevenueInterestPurchaseAgreementPaymentsPercentageOfNetSales" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ibrx_RevenueInterestPurchaseAgreementTieredRevenueInterestRatePercentage" abstract="false" name="RevenueInterestPurchaseAgreementTieredRevenueInterestRatePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ibrx_RevenueInterestPurchaseAgreementPaymentReceivedPercentage" abstract="false" name="RevenueInterestPurchaseAgreementPaymentReceivedPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ibrx_RevenueInterestPurchaseAgreementPercentageOfCumulativePurchaserPaymentsRepurchasePrice" abstract="false" name="RevenueInterestPurchaseAgreementPercentageOfCumulativePurchaserPaymentsRepurchasePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ibrx_RevenueInterestPurchaseAgreementPercentageOfCumulativePurchaserPaymentsRepurchasePriceTermFollowingClosingDate" abstract="false" name="RevenueInterestPurchaseAgreementPercentageOfCumulativePurchaserPaymentsRepurchasePriceTermFollowingClosingDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ibrx_SaleOfStockAdditionalPurchaseOption" abstract="false" name="SaleOfStockAdditionalPurchaseOption" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_SaleOfStockAndRevenueInterestPurchaseAgreementConsiderationReceivedOnTransaction" abstract="false" name="SaleOfStockAndRevenueInterestPurchaseAgreementConsiderationReceivedOnTransaction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_LongTermDebtRollForward" abstract="true" name="LongTermDebtRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ibrx_ProceedsFromIssuanceOfSecuredDebtGross" abstract="false" name="ProceedsFromIssuanceOfSecuredDebtGross" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_RevenueInterestPayment" abstract="false" name="RevenueInterestPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_AccruedRevenueInterestPayment" abstract="false" name="AccruedRevenueInterestPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_A505MillionPromissoryNoteDecember2023Tranche1Member" abstract="true" name="A505MillionPromissoryNoteDecember2023Tranche1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_A505MillionPromissoryNoteDecember2023Tranche2Member" abstract="true" name="A505MillionPromissoryNoteDecember2023Tranche2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_A30MillionMarch2023PromissoryNoteMember" abstract="true" name="A30MillionMarch2023PromissoryNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_A200MillionSeptember2023PromissoryNoteMember" abstract="true" name="A200MillionSeptember2023PromissoryNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_MeasurementInputExpectedMarketYieldMember" abstract="true" name="MeasurementInputExpectedMarketYieldMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_RelatedPartyNotesMember" abstract="true" name="RelatedPartyNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_RelatedPartyNotesPrincipalMember" abstract="true" name="RelatedPartyNotesPrincipalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_RelatedPartyNotesInterestMember" abstract="true" name="RelatedPartyNotesInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_NantCapitalThreeMember" abstract="true" name="NantCapitalThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_NantBioIncMember" abstract="true" name="NantBioIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_NantWorksLLCMember" abstract="true" name="NantWorksLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_BrinkBiologicsIncMember" abstract="true" name="BrinkBiologicsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_VariousMember" abstract="true" name="VariousMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_DuleyRoadMember" abstract="true" name="DuleyRoadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_ImmunoOncologyClinicMember" abstract="true" name="ImmunoOncologyClinicMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_ImmunoOncologyClinicIncMember" abstract="true" name="ImmunoOncologyClinicIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_SixZeroFiveDougStLLCMember" abstract="true" name="SixZeroFiveDougStLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_DuleyRoadLLCMember" abstract="true" name="DuleyRoadLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_SixZeroFiveNashLLCMember" abstract="true" name="SixZeroFiveNashLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_FourTwoZeroNashLLCMember" abstract="true" name="FourTwoZeroNashLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_A23AlaskaLLCMember" abstract="true" name="A23AlaskaLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_SharedServicesAgreementMember" abstract="true" name="SharedServicesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_ReimbursementsMember" abstract="true" name="ReimbursementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_NCSCMember" abstract="true" name="NCSCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_NantCancerStemCellMember" abstract="true" name="NantCancerStemCellMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_SeptemberTwentyNineteenLeaseMember" abstract="true" name="SeptemberTwentyNineteenLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_JulyTwentyNineteenLeaseMember" abstract="true" name="JulyTwentyNineteenLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_InitialPremisesMember" abstract="true" name="InitialPremisesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_ExpansionPremisesMember" abstract="true" name="ExpansionPremisesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_InitialAndExpansionPremisesMember" abstract="true" name="InitialAndExpansionPremisesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_DueToRelatedPartiesMember" abstract="true" name="DueToRelatedPartiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_AnnualPercentageIncreaseToBaseRent" abstract="false" name="AnnualPercentageIncreaseToBaseRent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ibrx_MonthlyBaseRent" abstract="false" name="MonthlyBaseRent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_IncreaseToNumberOfSquareFootOfFacilityLeased" abstract="false" name="IncreaseToNumberOfSquareFootOfFacilityLeased" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:areaItemType"/>
  <xs:element id="ibrx_SupplyAgreementTermOfContract" abstract="false" name="SupplyAgreementTermOfContract" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ibrx_SupplyAgreementPeriodOfExtendedTerm" abstract="false" name="SupplyAgreementPeriodOfExtendedTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ibrx_OptionsToExtendNumberOfTerms" abstract="false" name="OptionsToExtendNumberOfTerms" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ibrx_NumberOfLeaseAgreements" abstract="false" name="NumberOfLeaseAgreements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ibrx_LeaseRelatedPayables" abstract="false" name="LeaseRelatedPayables" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_MonthlyBaseRentParking" abstract="false" name="MonthlyBaseRentParking" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_December2022WarrantsMember" abstract="true" name="December2022WarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_February2023WarrantsMember" abstract="true" name="February2023WarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_July2023WarrantsMember" abstract="true" name="July2023WarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ibrx_FairValueOfWarrantsCarryingAmountRollForward" abstract="true" name="FairValueOfWarrantsCarryingAmountRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ibrx_WarrantsOutstandingRollForward" abstract="true" name="WarrantsOutstandingRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ibrx_ClassOfWarrantOrRightExercised" abstract="false" name="ClassOfWarrantOrRightExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ibrx_TwoThousandFifteenShareRepurchasePlanMember" abstract="true" name="TwoThousandFifteenShareRepurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_February2023ShelfRegistrationStatementMember" abstract="true" name="February2023ShelfRegistrationStatementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_SaleOfStockMaximumAggregateOfferingValue" abstract="false" name="SaleOfStockMaximumAggregateOfferingValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_PercentageOfSalesAgentCommission" abstract="false" name="PercentageOfSalesAgentCommission" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ibrx_IncreaseToMaximumAggregateStockOfferingAmount" abstract="false" name="IncreaseToMaximumAggregateStockOfferingAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_TwoThousandFifteenEquityIncentivePlanMember" abstract="true" name="TwoThousandFifteenEquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_WarrantsMember" abstract="true" name="WarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ibrx_ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimatedBenefitAtGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimatedBenefitAtGrantDateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ibrx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ibrx_IncomeTaxTable" abstract="true" name="IncomeTaxTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="ibrx_IncomeTaxLineItems" abstract="true" name="IncomeTaxLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
</xs:schema>
