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The study of photoacoustic imaging without nanoparticles as a contrast agent for anti-body drug monitoring

机译:没有纳米颗粒的光声成像研究作为抗身药物监测的造影剂

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As an emerging hybrid Imaging, Photoacoustic became a powerful tool that can scan disease at the deeper site in tissue and monitor of drug delivery in vivo. PAI system used nano-particle as contrast agent to enhance the PA signal in deeper site in tissue. So this makes that PAI’s application have some limitation for monitoring of all kinds of anti-body drug, because of various anti-body’s absorption excitation. In this study, we designed a PAI system with a tunable pulse OPO laser (from 450~700nm excitation wavelength) to show the optimal wavelength for monitoring of the antibody drug; doxorubicin having peak absorption at near 500nm excitation without any nano-particle combine. We made a gelatin phantoms having 4 different concentration doxorubicin as an anti-body drug; Doxorubicin concentration were in- 0mg/ml, 0.5mg/ml, 1mg/ml, and 2mg/ml. We found that 500nm is optimization wavelength to produce PA peak signal and PAI can be tool to monitor of anti-body drug without contrast agent.
机译:作为一种新兴的混合成像,光声变成了一种强大的工具,可以在体内扫描组织和药物递送的较深部位的疾病。 PAI系统使用纳米粒子作为造影剂,以增强组织中更深位点中的PA信号。因此,由于各种抗身的吸收激发,这使得PAI的应用对监测各种抗身药物进行了一些限制。在这项研究中,我们设计了一种具有可调谐脉冲OPO激光器(450〜700nm激发波长)的PAI系统,以显示出对抗体药物监测的最佳波长;在没有任何纳米粒子的情况下在接近500nm激发时具有峰值吸收的多柔比星。我们制造了一个具有4种不同浓度的多柔比星作为抗身药物的明胶幽灵;多柔比星浓度为0mg / ml,0.5mg / ml,1mg / ml和2mg / ml。我们发现500nm是优化波长,以产生PA峰信号,Pai可以是在没有造影剂的情况下监测抗身药物的工具。

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