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  <xs:element id="ser_SeriesAConvertibleStockConversionMember" abstract="true" name="SeriesAConvertibleStockConversionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_ExerciseOfPreFundedWarrantsPrivatePlacementMember" abstract="true" name="ExerciseOfPreFundedWarrantsPrivatePlacementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_JuvenescenceLimitedMember" abstract="false" name="JuvenescenceLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_StockIssuedDuringPeriodSharesNewIssuesDividends" abstract="false" name="StockIssuedDuringPeriodSharesNewIssuesDividends" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ser_AdjustmentsToAdditionalPaidInCapitalStockIssuedTrancheLiabilityGainLoss" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalStockIssuedTrancheLiabilityGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_JuvenescenceMember" abstract="false" name="JuvenescenceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_NonCashLeaseExpense" abstract="false" name="NonCashLeaseExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_ChangeInFairValueOfLiabilityClassifiedCapitalInstruments" abstract="false" name="ChangeInFairValueOfLiabilityClassifiedCapitalInstruments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_ProceedsFromIssuanceOfCommonStockAndWarrantsInConnectionWithPrivatePlacement" abstract="false" name="ProceedsFromIssuanceOfCommonStockAndWarrantsInConnectionWithPrivatePlacement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_InitialRecognitionOfTrancheLiability" abstract="false" name="InitialRecognitionOfTrancheLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_SettlementOfTrancheLiability" abstract="false" name="SettlementOfTrancheLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_DeemedDividendsConvertibleStockNoncash" abstract="false" name="DeemedDividendsConvertibleStockNoncash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_PreferredStockConvertibleConversionAmount" abstract="false" name="PreferredStockConvertibleConversionAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_TrancheLiabilityPolicyTextBlock" abstract="false" name="TrancheLiabilityPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ser_NeuroAirmidTherapeuticsIncMember" abstract="false" name="NeuroAirmidTherapeuticsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_EquityMethodInvestmentPercentageOfNetRevenue" abstract="false" name="EquityMethodInvestmentPercentageOfNetRevenue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ser_FinancialCommitmentAssetsCurrent" abstract="false" name="FinancialCommitmentAssetsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_PrepaidResearchAndDevelopmentServices" abstract="false" name="PrepaidResearchAndDevelopmentServices" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_AccruedResearchProgramAndServicesExpensesCurrent" abstract="false" name="AccruedResearchProgramAndServicesExpensesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_MergerAgreementMember" abstract="false" name="MergerAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_TwoThousandTwentyTwoWarrantsMember" abstract="false" name="TwoThousandTwentyTwoWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_A2025ConvertibleNoteMember" abstract="true" name="A2025ConvertibleNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_ContigentWarrantsMember" abstract="true" name="ContigentWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_PreFundedWarrantsMember" abstract="true" name="PreFundedWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_RedeemableWarrantsMember" abstract="true" name="RedeemableWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_DebtInstrumentEventOfDefaultAdditionalInterestRatePercentage" abstract="false" name="DebtInstrumentEventOfDefaultAdditionalInterestRatePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ser_ClassOfWarrantOrRightIssuableOnEachFundingDatePercentageOfIssuableSharesUponDebtConversion" abstract="false" name="ClassOfWarrantOrRightIssuableOnEachFundingDatePercentageOfIssuableSharesUponDebtConversion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ser_DebtInstrumentNumberOfTranches" abstract="false" name="DebtInstrumentNumberOfTranches" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ser_ReclassificationOfFinancialCommitmentAssetToDebtDiscount" abstract="false" name="ReclassificationOfFinancialCommitmentAssetToDebtDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_WarrantAggregatePurchasePrice" abstract="false" name="WarrantAggregatePurchasePrice" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_MergerWarrantsMember" abstract="false" name="MergerWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_WarrantLiabilityFairValueDisclosure" abstract="false" name="WarrantLiabilityFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_WarrantLiabilitiesMember" abstract="true" name="WarrantLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_PostMergerWarrantsAndIncentiveWarrantsMember" abstract="true" name="PostMergerWarrantsAndIncentiveWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_AdjustmentsToAdditionalPaidInCapitalWarrantReclassified" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalWarrantReclassified" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityExtinguishment" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityExtinguishment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_TrancheLiabilityMember" abstract="true" name="TrancheLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlementOfTrancheLiability" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlementOfTrancheLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_PreFundedWarrantsAndCommonStockMember" abstract="true" name="PreFundedWarrantsAndCommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_SecuritiesUnderTrancheAMember" abstract="true" name="SecuritiesUnderTrancheAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_SecuritiesUnderTrancheBMember" abstract="true" name="SecuritiesUnderTrancheBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_AtTheMarketOfferingProgramMember" abstract="true" name="AtTheMarketOfferingProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_IncentiveWarrantsMember" abstract="false" name="IncentiveWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_ReplacementIncentiveWarrantsMember" abstract="true" name="ReplacementIncentiveWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_PostMergerWarrantsMember" abstract="false" name="PostMergerWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_FormerAgeXWarrantsMember" abstract="true" name="FormerAgeXWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_AgeXWarrantsMember" abstract="true" name="AgeXWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_SecuritiesPurchaseAgreementMember" abstract="true" name="SecuritiesPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_JonesTradingInstitutionalServicesLLCMember" abstract="true" name="JonesTradingInstitutionalServicesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_DefinitiveAgreementMember" abstract="true" name="DefinitiveAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_PercentageOfCommonShareIssue" abstract="false" name="PercentageOfCommonShareIssue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ser_ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights" abstract="false" name="ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="ser_WarrantsAndRightsOutstandingSharePriceThresholdForExercise" abstract="false" name="WarrantsAndRightsOutstandingSharePriceThresholdForExercise" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="ser_ClassOfWarrantOrRightRedemptionPeriodAfterEvent" abstract="false" name="ClassOfWarrantOrRightRedemptionPeriodAfterEvent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ser_WarrantsAndRightsCalledForRedemptionPeriod" abstract="false" name="WarrantsAndRightsCalledForRedemptionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ser_SecuritiesPurchaseAgreementThresholdDays" abstract="false" name="SecuritiesPurchaseAgreementThresholdDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ser_ProceedsFromInvestors" abstract="false" name="ProceedsFromInvestors" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_ProceedsOfIssuanceOfCommonStockAndWarrants" abstract="false" name="ProceedsOfIssuanceOfCommonStockAndWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_SaleOfStockStockExpiredAndUnexercisedAmount" abstract="false" name="SaleOfStockStockExpiredAndUnexercisedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_ConvertiblePreferredStockDeemedDividend" abstract="false" name="ConvertiblePreferredStockDeemedDividend" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_ClassOfWarrantOrRightExercised" abstract="false" name="ClassOfWarrantOrRightExercised" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ser_ClassOfWarrantOrRightIssued" abstract="false" name="ClassOfWarrantOrRightIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ser_ClassOfWarrantOrRightExpired" abstract="false" name="ClassOfWarrantOrRightExpired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ser_SaleOfStockMaximumAggregateOfferingPrice" abstract="false" name="SaleOfStockMaximumAggregateOfferingPrice" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ser_SaleOfStockSalesAgentCommissionPercentage" abstract="false" name="SaleOfStockSalesAgentCommissionPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ser_A2024EquityIncentivePlanMember" abstract="false" name="A2024EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_A2024EquityIncentivePlanAmendedMember" abstract="true" name="A2024EquityIncentivePlanAmendedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_ShareBasedCompensationArrangementByShareBasedPaymentAwardAutomaticIncreaseRateAsAPercentageOfOutstandingStock" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAutomaticIncreaseRateAsAPercentageOfOutstandingStock" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ser_SeriesAConvertiblePreferredStockMember" abstract="true" name="SeriesAConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_SeriesAPreferredStockUndeclaredMember" abstract="true" name="SeriesAPreferredStockUndeclaredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_ProjectSpecificMember" abstract="true" name="ProjectSpecificMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_NonProjectSpecificMember" abstract="true" name="NonProjectSpecificMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_CompensationMember" abstract="true" name="CompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_InfrastructureManagementAndFacilitiesMember" abstract="true" name="InfrastructureManagementAndFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_ProfessionalAndOutsideServiceFeesMember" abstract="true" name="ProfessionalAndOutsideServiceFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ser_RandallMoreadithMember" abstract="true" name="RandallMoreadithMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
