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    <element id="IMNN_AvailableForSaleSecuritiesUnrealizedHoldingGainsLessThanTwelveMonths" name="AvailableForSaleSecuritiesUnrealizedHoldingGainsLessThanTwelveMonths" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_AvailableForSaleSecuritiesUnrealizedLossFairValue" name="AvailableForSaleSecuritiesUnrealizedLossFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_AvailableForSaleSecuritiesUnrealizedHoldingLossesLessThanTwelveMonths" name="AvailableForSaleSecuritiesUnrealizedHoldingLossesLessThanTwelveMonths" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_AvailableForSaleSecuritiesUnrealizedHoldingGainsLossesLessThanTwelveMonths" name="AvailableForSaleSecuritiesUnrealizedHoldingGainsLossesLessThanTwelveMonths" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_EarlyTerminationFee" name="EarlyTerminationFee" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_EndOfTermCharges" name="EndOfTermCharges" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_FinalPaymentPercentage" name="FinalPaymentPercentage" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_EndOfTermChargePercentage" name="EndOfTermChargePercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_EffectiveIncomeTaxRateReconciliationPermanentDifferences" name="EffectiveIncomeTaxRateReconciliationPermanentDifferences" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_EffectiveIncomeTaxRateReconciliationTimeUp" name="EffectiveIncomeTaxRateReconciliationTimeUp" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_DeferredTaxAssetsLegalAct" name="DeferredTaxAssetsLegalAct" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_NetProceedsFromSaleOfNetOperatingLosses" name="NetProceedsFromSaleOfNetOperatingLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_OriginalIssueDiscountRate" name="OriginalIssueDiscountRate" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_PlacementAgentFeeDescription" name="PlacementAgentFeeDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="IMNN_StockOptionsStrikePriceDescription" name="StockOptionsStrikePriceDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_GainLossFromChangeInFairValueOfEarnOutMilestoneLiability" name="GainLossFromChangeInFairValueOfEarnOutMilestoneLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_EarnoutPaymentOptionsDescription" name="EarnoutPaymentOptionsDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingIntrinsicValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAfterYearFour" name="LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="IMNN_IssuanceOfCommonStockUponExerciseOfRestrictedOptions" name="IssuanceOfCommonStockUponExerciseOfRestrictedOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
