

<!-- EDGAR Online I-Metrix Xcelerate Taxonomy Schema, based on XBRL 2.1  http://www.edgar-online.com/ -->
<!-- Version: 6.17.6 -->
<!-- Round: 27599abb-a0cf-4117-b8fb-0e35e3c1d363 -->
<!-- Creation date: 2012-08-02T06:18:19Z -->
<!-- Copyright (c) 2005-2011 EDGAR Online, Inc. All Rights Reserved. -->
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        <link:definition>101 - Document - Document and Entity Information</link:definition>
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        <link:definition>103 - Statement - CONSOLIDATED BALANCE SHEETS</link:definition>
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        <link:definition>104 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
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        <link:definition>105 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</link:definition>
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        <link:definition>106 - Statement - CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY</link:definition>
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        <link:definition>107 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
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        <link:definition>109 - Disclosure - BASIS OF PRESENTATION</link:definition>
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        <link:definition>110 - Disclosure - RESEARCH AND DEVELOPMENT</link:definition>
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        <link:definition>111 - Disclosure - REVENUE RECOGNITION AND DEFERRED PROGRAM FEE REVENUE</link:definition>
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        <link:definition>112 - Disclosure - INCOME TAXES</link:definition>
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        <link:definition>113 - Disclosure - ACCRUED EXPENSES</link:definition>
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        <link:definition>114 - Disclosure - SHARE-BASED COMPENSATION</link:definition>
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        <link:definition>115 - Disclosure - COMMON STOCK WARRANTS</link:definition>
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        <link:definition>116 - Disclosure - EARNINGS (LOSS) PER SHARE</link:definition>
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        <link:definition>117 - Disclosure - COMMITMENTS AND CONTINGENCIES</link:definition>
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        <link:definition>118 - Disclosure - ACCRUED EXPENSES (Tables)</link:definition>
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        <link:definition>119 - Disclosure - SHARE-BASED COMPENSATION (Tables)</link:definition>
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        <link:definition>121 - Disclosure - Research and Development - Additional Information (Detail)</link:definition>
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        <link:definition>122 - Disclosure - Revenue Recognition and Deferred Program Fee Revenue - Additional Information (Detail)</link:definition>
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        <link:definition>123 - Disclosure - Accrued Expenses (Detail)</link:definition>
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        <link:definition>124 - Disclosure - Non-Cash Share-Based Compensation Expense (Detail)</link:definition>
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        <link:definition>125 - Disclosure - Share-Based Compensation - Additional Information (Detail)</link:definition>
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        <link:definition>126 - Disclosure - Stock Option Award Activity (Detail)</link:definition>
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        <link:definition>127 - Disclosure - Assumptions Used in Black-Scholes Model to Determine Fair Value for Stock Option Awards Granted (Detail)</link:definition>
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        <link:definition>128 - Disclosure - Summary of Restricted Stock Units Plan (Detail)</link:definition>
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        <link:definition>129 - Disclosure - Common Stock Warrants - Additional Information (Detail)</link:definition>
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        <link:definition>130 - Disclosure - Earnings (Loss) Per Share - Additional Information (Detail)</link:definition>
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        <link:definition>131 - Disclosure - Computation of Basic and Diluted Earnings (Loss) Per Share (Detail)</link:definition>
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        <link:definition>132 - Disclosure - Commitments and Contingencies - Additional Information (Detail)</link:definition>
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  <element name="EarningsPerShareDilutedNumeratorAbstract" id="acur_EarningsPerShareDilutedNumeratorAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EarningsPerShareDisclosureLineItems" id="acur_EarningsPerShareDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EarningsPerShareDisclosureTable" id="acur_EarningsPerShareDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="EquityBasedEmployeeCompensationGrantedShares" id="acur_EquityBasedEmployeeCompensationGrantedShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EquityIssuanceCostsWithheld" id="acur_EquityIssuanceCostsWithheld" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ExercisePriceOfWarrants" id="acur_ExercisePriceOfWarrants" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LicenseFeesMember" id="acur_LicenseFeesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LocationAxis" id="acur_LocationAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
  <element name="LocationsDomain" id="acur_LocationsDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NewJerseyStateMember" id="acur_NewJerseyStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfLawsuitsFiled" id="acur_NumberOfLawsuitsFiled" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfLawsuitsServed" id="acur_NumberOfLawsuitsServed" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfStockIncentivePlans" id="acur_NumberOfStockIncentivePlans" type="xbrli:positiveIntegerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingRevenueDisclosureTextBlock" id="acur_OperatingRevenueDisclosureTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionNonCashExerciseOneMember" id="acur_OptionNonCashExerciseOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OtherAccruedTaxesCurrent" id="acur_OtherAccruedTaxesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PennsylvaniaStateMember" id="acur_PennsylvaniaStateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ProgramFeeRevenue" id="acur_ProgramFeeRevenue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ResearchAndDevelopmentDisclosureTextBlock" id="acur_ResearchAndDevelopmentDisclosureTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RestrictedStockUnitMember" id="acur_RestrictedStockUnitMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionAwardsDistributedPercentage" id="acur_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionAwardsDistributedPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDistributedInPeriod" id="acur_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDistributedInPeriod" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" id="acur_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharesWithheldForTaxShares" id="acur_SharesWithheldForTaxShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharesWithheldForTaxValue" id="acur_SharesWithheldForTaxValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharesWithheldToSatisfyEmployeesTaxWithholdingShares" id="acur_SharesWithheldToSatisfyEmployeesTaxWithholdingShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockIssuedDuringPeriodSharesStockOptionsExercisedNetOfSharesForTaxWithholdings" id="acur_StockIssuedDuringPeriodSharesStockOptionsExercisedNetOfSharesForTaxWithholdings" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SupplementalTaxWithholding" id="acur_SupplementalTaxWithholding" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TaxesWithheldOnIssuanceOfStockBasedAwards" id="acur_TaxesWithheldOnIssuanceOfStockBasedAwards" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="VestedRestrictedStockUnitsMember" id="acur_VestedRestrictedStockUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
</schema>





