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纳米成像技术研究取得突破
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作者 新华 《军民两用技术与产品》 2004年第8期30-30,共1页
关键词 纳米成像技术 显微镜 清晰度 辨别率 原子结构
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美科学家观测到单个电子旋转过程——该成果对于纳米成像技术及量子计算机的研制具有重要意义
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《物理通报》 2004年第8期35-35,共1页
关键词 纳米成像技术 量子计算机 单个电子旋转 二氧化硅晶体
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纳米磁颗粒电磁探测及成像技术研究进展
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作者 朱健健 杨文晖 +2 位作者 魏树峰 王铮 吕行 《中国生物医学工程学报》 CAS CSCD 北大核心 2018年第3期344-352,共9页
近10年来,磁纳米颗粒已由最初的核磁共振造影剂发展成为集疾病诊断、靶向药物输送及磁热疗等一体化诊断平台的功能性材料。磁纳米颗粒成像(MPI)是一种通过检测注射到血管中的超顺磁性纳米颗粒的磁性来构建三维图像的计算机断层成像技术... 近10年来,磁纳米颗粒已由最初的核磁共振造影剂发展成为集疾病诊断、靶向药物输送及磁热疗等一体化诊断平台的功能性材料。磁纳米颗粒成像(MPI)是一种通过检测注射到血管中的超顺磁性纳米颗粒的磁性来构建三维图像的计算机断层成像技术。除血管造影和干细胞跟踪,磁纳米颗粒成像在生物医学上有一系列令人激动的潜在的应用,例如实时透视、诊断和分期癌症、体内炎症成像、温度显示和功能性分子成像等。该技术试图在现有的造影剂成像技术上以更敏感、更快捷、更安全的方式得到确定体积内的示踪剂分布的图像。首先介绍磁纳米颗粒在分子成像与诊疗应用研究进展,进一步说明磁纳米颗粒的电磁探测的原理,重点从扫描仪线圈拓扑结构和图像重建两方面介绍磁颗粒的电磁成像技术的研究现状和存在的问题,最后提出未来技术重要的发展趋势。 展开更多
关键词 分子成像 诊疗 电磁探测 纳米颗粒成像技术
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Tumor Molecular Imaging with Nanoparticles 被引量:3
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作者 Zhen Cheng Xuefeng Ya +2 位作者 Xilin Sun BaozhongShen Sanjiv Sam Gambhir 《Engineering》 SCIE EI 2016年第1期132-140,共9页
Molecular imaging(MI)can provide not only structural images using traditional imaging techniques but also functional and molecular information using many newly emerging imaging techniques.Over the past decade,the util... Molecular imaging(MI)can provide not only structural images using traditional imaging techniques but also functional and molecular information using many newly emerging imaging techniques.Over the past decade,the utilization of nanotechnology in MI has exhibited many significant advantages and provided new opportunities for the imaging of living subjects.It is expected that multimodality nanoparticles(NPs)can lead to precise assessment of tumor biology and the tumor microenvironment.This review addresses topics related to engineered NPs and summarizes the recent applications of these nanoconstructs in cancer optical imaging,ultrasound,photoacoustic imaging,magnetic resonance imaging(MRI),and radionuclide imaging.Key challenges involved in the translation of NPs to the clinic are discussed. 展开更多
关键词 TUMOR Molecular imaging NANOPARTICLES
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Quantum Dots for Cancer Research:Current Status,Remaining Issues,and Future Perspectives 被引量:4
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作者 Min Fang Chun-wei Peng +1 位作者 Dai-Wen Pang Yan Li 《Clinical oncology and cancer researeh》 CAS CSCD 2012年第3期151-163,共13页
Cancer is a major threat to public health in the 21st century because it is one of the leading causes of death worldwide.The mechanisms of carcinogenesis,cancer invasion,and metastasis remain unclear.Thus,the developm... Cancer is a major threat to public health in the 21st century because it is one of the leading causes of death worldwide.The mechanisms of carcinogenesis,cancer invasion,and metastasis remain unclear.Thus,the development of a novel approach for cancer detection is urgent,and real-time monitoring is crucial in revealing its underlying biological mechanisms.With the optical and chemical advantages of quantum dots(QDs),QD-based nanotechnology is helpful in constructing a biomedical imaging platform for cancer behavior study.This review mainly focuses on the application of QD-based nanotechnology in cancer cell imaging and tumor microenvironment studies both in vivo and in vitro,as well as the remaining issues and future perspectives. 展开更多
关键词 quantum dots molecular imaging multimodality probes
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非连续湿热作用对T700/TR1219B复合材料宏细观性能的影响
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作者 姚佳伟 贾紫娇 牛一凡 《宇航材料工艺》 CSCD 北大核心 2017年第5期21-24,共4页
为研究非连续湿热作用对碳纤维环氧树脂基复合材料性能的影响,对T700/TR1219B试样进行了吸湿-脱湿试验,测试了其拉神性能,并采用SEM观察试样侧面;通过原子力显微镜的峰值力纳米力学成像技术(PF-QNM)对树脂进行纳米压痕测试。结果表明:... 为研究非连续湿热作用对碳纤维环氧树脂基复合材料性能的影响,对T700/TR1219B试样进行了吸湿-脱湿试验,测试了其拉神性能,并采用SEM观察试样侧面;通过原子力显微镜的峰值力纳米力学成像技术(PF-QNM)对树脂进行纳米压痕测试。结果表明:吸湿率从0变化到1.2%,T700/TR1219B复合材料的一次及二次吸湿行为均满足Fick定律;经吸湿-脱湿-再吸湿,试样的拉伸强度、弹性模量及树脂的硬度及弹性模量均呈现先上升后下降的变化趋势。 展开更多
关键词 T700/TR1219B复合材料 非连续湿热 吸湿-脱湿 峰值力纳米力学成像技术 硬度 弹性模量
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Recent progress in gold nanoparticle-based biosensing and cellular imaging 被引量:3
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作者 Haiyang Peng Hao Tang Jianhui Jiang 《Science China Chemistry》 SCIE EI CAS CSCD 2016年第7期783-793,共11页
Gold nanoparticles(Au NPs) have been extensively used in optical biosensing and bioimaging due to the unique optical properties. Biological applications including biosensing and cellular imaging based on optical prope... Gold nanoparticles(Au NPs) have been extensively used in optical biosensing and bioimaging due to the unique optical properties. Biological applications including biosensing and cellular imaging based on optical properties of Au NPs will be reviewed in the paper. The content will focus on detection principles, advantages and challenges of these approaches as well as recent advances in this field. 展开更多
关键词 gold nanoparticle OPTICAL FUNCTIONALIZATION BIOSENSING cellular imaging
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