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Hyperspectral in vivo two-photon microscopy of intrinsic contrast

机译:高光谱体内双光子显微镜的固有对比度

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In vivo two-photon imaging of intrinsic contrast can provide valuable information about structural tissuenelements such as collagen and elastin and fluorescent metabolites such as nicotinamide adenine dinucle-notide. Yet low signal and overlapping emission spectra can make it difficult to identify and delineate thesenspecies in vivo. We present a novel approach that combines excitation scanning with spectrally resolvednemission two-photon microscopy, allowing distinct structures to be delineated based on their characteristicnspectral fingerprints. The amounts of intrinsic fluorophores present in each voxel can also be evaluated. Wendemonstrate our method using in vivo imaging of nude mouse skin. © 2008 Optical Society of America
机译:体内固有对比度的双光子成像可以提供有关结构组织元素(例如胶原蛋白和弹性蛋白)和荧光代谢物(例如烟酰胺腺嘌呤二核苷)的有价值的信息。然而,低信号和重叠的发射光谱可能使其难以在体内鉴定和勾画出物种。我们提出了一种新颖的方法,将激发扫描与光谱分辨发射双光子显微镜相结合,允许根据其特征光谱指纹来描绘不同的结构。也可以评估每个体素中存在的固有荧光团的数量。使用裸鼠皮肤的体内成像演示我们的方法。 ©2008美国眼镜学会

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