Development of an ultra-sensitive, laser-based, carbon-14 spectrometer for molecular speciation of liquid-chromatography analytes and small, biological samples
Development of an ultra-sensitive, laser-based, carbon-14 spectrometer for molecular speciation of liquid-chromatography analytes and small, biological samples
批准号:
10171595
负责人:
Alan Daniel McCartt
金额:
$74.17万
依托单位国家:
美国
项目类别:
财政年份:
2018
资助国家:
美国
项目状态:
已结题
起止时间:
2018-08-15 至 2023-05-31
关键词:
AdoptionAnimal ModelAnimalsBasic ScienceBiochemicalBiologicalBiological TestingBiologyC14 isotopeCarbonCarbon RadioisotopesCommunitiesComplexCoupledCouplingDetectionDevelopmentDoctor of PhilosophyDoseFosteringFundingGenerationsGoalsHumanIndividualIndustryLabelLaboratoriesLasersLiquid ChromatographyMeasurementMeasuresMethodsModernizationMolecularNutrientPharmaceutical PreparationsPharmacologic SubstancePhaseResearchSample SizeSamplingScientistSpecimenSpectrum AnalysisStudy SubjectSystemTechniquesTechnologyTherapeuticTimeToxinUnited States National Institutes of HealthWorkabsorptionaccelerator mass spectrometryanalytical toolbasebiological systemscostdetection limitdrug developmentexperimental studyhuman subjectimprovedinstrumentinstrumentationliquid chromatography mass spectrometrymass spectrometeroperationsuccesstool
中文摘要
加速器质谱仪(AMS)灵敏度下基于激光的碳同位素探测的可行性
但是这些仪器需要大的样本量并且缺乏与系统的兼容性
常见于生物实验室-如液相色谱-质谱联用(LC-MS)。 他们有能力
快速检测和定量更少量的物质,LC-CNOMS系统的价值在于其能力,
分离单个生物分子。因此,LC-MS耦合现在被规定为成功和采用
新的生物仪器 因此,我们建议开发一种基于激光的碳-γ 14光谱仪,
利用饱和吸收腔衰荡光谱(SCARS)进行生物学研究。该仪器将具有类似
对AMS的灵敏度(~10 - 14 C/C检测限),处理纳克至微克大小样品的能力,
以及测量由LC系统分离的分析物的能力。 这种水平的碳-1414敏感性和
它提供的技术目前仅限于耗资数百万美元的房间大小的AMS仪器,
需要几个专门的博士 科学家们的操作。 SCAR仪器会小得多
(桌面大小),更便宜,更容易操作。 可访问性加上这种极端敏感性
技术将使高通量、小样本量的实验成为可能,
现代生物实验室 该仪器将增强LC/MS系统-提供一种手段,
定量分析复杂的生化系统在任何研究实验室。 这将对生物学产生影响
从基础科学实验到药物开发中更实用的人体研究。
英文摘要
The feasibility of laser-based, detection of carbon-14 at Accelerator Mass Spectrometer (AMS) sensitivities
has been demonstrated, but these instruments require large samples sizes and lack compatibility with systems
common to biological labs—such as liquid chromatography-mass spectrometry (LC-MS). With their ability to
quickly detect and quantify ever smaller amounts of material, LC-MS systems are valued for their capacity to
isolate individual biomolecules. As a result, LC-MS coupling is now stipulated for the success and adoption of
new biological instrumentation. Consequently, we propose to develop a laser-based, carbon-14 spectrometer
for biology using saturated-absorption cavity ring-down spectroscopy (SCARS). This instrument will have similar
sensitivity to AMS (~10-15 14C/C limit-of-detection), the ability to handle nanogram to microgram sized samples,
and the capability to measure analytes separated by LC systems. This level of carbon-14 sensitivity and the
techniques it affords are currently restricted to room-sized AMS instruments that cost millions of dollars and
require several dedicated Ph.D. level scientists for operation. The SCAR instrument would be much smaller
(table-top sized), cheaper, and easier to operate. The accessibility coupled with the extreme sensitivity of this
technology will enable high-throughput, small-sample-size experiments and bring carbon-14 measurements into
the modern biological laboratory. This instrument will enhance LC/MS systems—providing a means to
quantitatively analyze complex biochemical systems in any research lab. This will have an impact on biology
from basic science experiments to more applied human subject studies in drug development.
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Development of an ultra-sensitive, laser-based, carbon-14 spectrometer for molecular speciation of liquid-chromatography analytes and small, biological samples
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批准号:9762145
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项目类别:
-
资助金额:$74.22万
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财政年份:2018
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负责人:Alan Daniel McCartt
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依托单位:
海外基金