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  <xsd:element name="May2026OfferingMember" id="otlk_May2026OfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="April2026OfferingMember" id="otlk_April2026OfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="March2026OfferingMember" id="otlk_March2026OfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassOfWarrantOrRightIncrementalCostsOnAmendment" id="otlk_ClassOfWarrantOrRightIncrementalCostsOnAmendment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AmendedWarrantsMember" id="otlk_AmendedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeventeenJanuaryTwoThousandThirtyTwoMember" id="otlk_SeventeenJanuaryTwoThousandThirtyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeventeenJanuaryTwoThousandThirtyOneMember" id="otlk_SeventeenJanuaryTwoThousandThirtyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeventeenJanuaryTwoThousandThirtyThreeMember" id="otlk_SeventeenJanuaryTwoThousandThirtyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwentySeventhMayTwoThousandThirtyOneMember" id="otlk_TwentySeventhMayTwoThousandThirtyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwentySeventhMayTwoThousandThirtyTwoMember" id="otlk_TwentySeventhMayTwoThousandThirtyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="August2026FollowOnOfferingMember" id="otlk_August2026FollowOnOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OverAllotmentPeriod" id="otlk_OverAllotmentPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MaximumNumberOfAdditionalSharesOfferedForPurchase" id="otlk_MaximumNumberOfAdditionalSharesOfferedForPurchase" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="MaximumClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsPurchased" id="otlk_MaximumClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsPurchased" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
</xsd:schema>
