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    <element id="VTRO_ConvertibleLongTermNotesPayableStockSettledNetNonCurrent" name="ConvertibleLongTermNotesPayableStockSettledNetNonCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleLongTermNotesPayableStockSettledNetOne" name="ConvertibleLongTermNotesPayableStockSettledNetOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleLongTermNotesPayableStockSettledNetTwo" name="ConvertibleLongTermNotesPayableStockSettledNetTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_LongTermAccruedInterestPayable" name="LongTermAccruedInterestPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_LongTermAccruedInterestPayableRelatedParty" name="LongTermAccruedInterestPayableRelatedParty" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_GainOnForgivenessOfDebt" name="GainOnForgivenessOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_CumulativeSeriesA1ConvertiblePreferredStockDividendRequirement" name="CumulativeSeriesA1ConvertiblePreferredStockDividendRequirement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ExtinguishmentOfDerivativewarrantLiabilities" name="ExtinguishmentOfDerivativewarrantLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_AccretionOfDebtDiscount" name="AccretionOfDebtDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_IncreaseDecreaseInAccruedInterestRelatedParties" name="IncreaseDecreaseInAccruedInterestRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ProceedsFromIssuanceOfSeniorConvertibleNotesPayableStockSettled" name="ProceedsFromIssuanceOfSeniorConvertibleNotesPayableStockSettled" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_CashlessExerciseOfStockOptions" name="CashlessExerciseOfStockOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_NonCashConversionOfSeniorSecuredConvertibleNotesPayable" name="NonCashConversionOfSeniorSecuredConvertibleNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_NoncashDerivativewarrantLiabilitySeriesSeniorNotesPayable" name="NoncashDerivativewarrantLiabilitySeriesSeniorNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_NoncashOrPartNoncashDiscountOnDerivativewarrantLiabilitySeriesSeniorSecuredNotesPayable" name="NoncashOrPartNoncashDiscountOnDerivativewarrantLiabilitySeriesSeniorSecuredNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DisclosureLeaseObligationsAbstract" name="DisclosureLeaseObligationsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DeferredRevenuePolicyTextBlock" name="DeferredRevenuePolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_PatentsPolicyTextBlock" name="PatentsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ScheduleOfDeferredRevenueTableTextBlock" name="ScheduleOfDeferredRevenueTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ScheduleOfFairValueDerivativeLiabilitiesOnWarrantsGrantedTableTextBlock" name="ScheduleOfFairValueDerivativeLiabilitiesOnWarrantsGrantedTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ScheduleOfBalanceSheetInformationRelatedToLeasesTableTextBlock" name="ScheduleOfBalanceSheetInformationRelatedToLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ScheduleOfOperationsInformationRelatedToLeasesTableTextBlock" name="ScheduleOfOperationsInformationRelatedToLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ScheduleOfOtherInformationTableTextBlock" name="ScheduleOfOtherInformationTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_PrepaidProjectCosts" name="PrepaidProjectCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_CapitalizedPatentCosts" name="CapitalizedPatentCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_WorkingCapitalDeficit" name="WorkingCapitalDeficit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DerivativeLiabilityMeasurementWeightedAverageExpectedLife" name="DerivativeLiabilityMeasurementWeightedAverageExpectedLife" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_FiniteLivedIntangibleAssetsImpairment" name="FiniteLivedIntangibleAssetsImpairment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_GoodwillEstimatedRemainingUsefulLives" name="GoodwillEstimatedRemainingUsefulLives" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_OperatingAndFinanceLeaseRightofUseAsset" name="OperatingAndFinanceLeaseRightofUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_OperatingAndFinanceLeaseLiability" name="OperatingAndFinanceLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearThree" name="LesseeOperatingLeaseLiabilityPaymentsDueAfterYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_FinanceLeaseLiabilityPaymentsDueAfterYearThree" name="FinanceLeaseLiabilityPaymentsDueAfterYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleSeriesSeniorSecureShortTermNotesPayableOne" name="ConvertibleSeriesSeniorSecureShortTermNotesPayableOne" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleSeriesSeniorSecureShortTermNotesPayableTwo" name="ConvertibleSeriesSeniorSecureShortTermNotesPayableTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DiscountConvertibleSeriesSeniorSecureShortTermNotesPayable" name="DiscountConvertibleSeriesSeniorSecureShortTermNotesPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleLongTermNotesPayableStockSettled" name="ConvertibleLongTermNotesPayableStockSettled" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleLongTermNotesPayableSeriesDiscount" name="ConvertibleLongTermNotesPayableSeriesDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleSeriesBLongTermNotesPayableStockSettled" name="ConvertibleSeriesBLongTermNotesPayableStockSettled" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleSeriesBLongTermNotesPayableSeriesDiscount" name="ConvertibleSeriesBLongTermNotesPayableSeriesDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_SeniorSecuredConvertibleLongTermNotesPayable" name="SeniorSecuredConvertibleLongTermNotesPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_SeniorSecuredConvertibleLongTermNotesPayableDiscount" name="SeniorSecuredConvertibleLongTermNotesPayableDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_PremoneyValuationAmount" name="PremoneyValuationAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DebtInstrumentQualifiedFinancingSecuritiesPercentage" name="DebtInstrumentQualifiedFinancingSecuritiesPercentage" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DerivativeWarrantLiability" name="DerivativeWarrantLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DebtInstrumentDiscountRate" name="DebtInstrumentDiscountRate" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_DebtInstrumentSubscriptionAmount" name="DebtInstrumentSubscriptionAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_WarrantExercisableRelatedToLiquidityEventDescription" name="WarrantExercisableRelatedToLiquidityEventDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_OriginalIssuanceDiscount" name="OriginalIssuanceDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_AdditionalProceedsOfExtinguishment" name="AdditionalProceedsOfExtinguishment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_AdditionalFairValueOfWarrantLiability" name="AdditionalFairValueOfWarrantLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_InterestRateEffectivePercentageDescription" name="InterestRateEffectivePercentageDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingWeightedAverageExercisePrice" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsWeightedAverageRemainingContractualTerm2" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsWeightedAverageRemainingContractualTerm2" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsGrantedWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsGrantedWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsExpiredWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsExpiredWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsExercisedWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsExercisedWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsWeightedAverageRemainingContractualTermIssued" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsWeightedAverageRemainingContractualTermIssued" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_CommitmentsAndContingenciesDisclosureTable" name="CommitmentsAndContingenciesDisclosureTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="VTRO_AnnualBonusPercentage" name="AnnualBonusPercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_AgreementTerm" name="AgreementTerm" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ProductSalesPercentage" name="ProductSalesPercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_AccruedInterest" name="AccruedInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_ConvertibleShortTermNotePayableRelatedPartyCurrent" name="ConvertibleShortTermNotePayableRelatedPartyCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="VTRO_TotalCompensationAndBenefitsCost" name="TotalCompensationAndBenefitsCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
