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:
9762145
负责人:
Alan Daniel McCartt
金额:
$74.22万
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 2022-05-31
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 systemscostdrug developmentexperimental studyhuman subjectimprovedinstrumentinstrumentationliquid chromatography mass spectrometrymass spectrometeroperationsuccesstool
中文摘要
在加速器和质谱仪(AMS)上使用基于激光的碳-14碳检测系统的可行性以及灵敏度。
虽然已经得到了验证,但这些仪器需要大小的电子样品,并且与其他系统缺乏兼容性。
生物实验室的常见技术--如液体色谱-质谱仪(LC-MS)。它们的能力很强。
快速检测和量化数量越来越少的材料,这些LC-MS系统因其更大的容量需求而备受重视。
分离单个的生物分子。因此,现在还规定了LC-MS联用技术,以确保其成功和更好的应用前景。
因此,我们将提出一种新的基于激光的、低碳的光谱仪的开发方案。
对于生物来说,使用饱和吸收腔和光谱分析技术(SCARS)。这种仪器将不会有类似的应用。
对AMS的灵敏度(~10-15和14C/C的检测极限),以及处理从毫微克到微克大小的样品的能力。
并提高了通过薄层色谱系统分离的分析物的测量能力。将这一水平的碳-14%的灵敏度保持在最高水平。
它所提供的技术目前仅限于房间大小的AMS仪器,这些仪器的成本高达数十亿美元。
手术需要几个专业的博士级别的科学家来做手术。这样的疤痕手术仪器可能会小得多。
(桌面大小),更便宜,更容易操作。它的易用性,加上它的极高的安全性和敏感度。
技术创新将使我们能够进行高通量、小样本量的实验,并将碳14的测量结果带入实验室。
这是一个现代化的生物化学实验室。这一仪器将进一步增强我们的LC/MS系统--为我们提供一种更好的手段。
在任何一个研究实验室中,我们都可以对复杂的生化系统进行定量分析。这项研究将对生物生物学产生重大影响。
从基础科学、实验到更多应用于人类学科的研究,都在药物研发中得到应用。
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:10171595
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项目类别:
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资助金额:$74.17万
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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