转基因玉米MON87411是孟山都远东有限公司研发的抗虫耐除草剂玉米转化体,该转化体已获得进口加工原料的农业转基因生物安全证书。以转基因玉米MON87411品系特异性序列为靶标设计引物和探针,经特异性测试、体系优化、灵敏度测试及检出限...转基因玉米MON87411是孟山都远东有限公司研发的抗虫耐除草剂玉米转化体,该转化体已获得进口加工原料的农业转基因生物安全证书。以转基因玉米MON87411品系特异性序列为靶标设计引物和探针,经特异性测试、体系优化、灵敏度测试及检出限测试,建立了转基因玉米MON87411的实时荧光PCR定性检测方法。结果表明,该方法能检测出转基因玉米MON87411的转化体成分,检出限(limit of detection,LOD)可达0.05%,具有稳定性好、特异性强、灵敏度高的特点。国内8家转基因生物安全检测机构对本方法进行了特异性测试、检出限测试和再现性测试,循环验证报告显示该方法符合国家标准方法的各项要求,可在检测行业推广应用。研究建立的方法可为我国对转基因玉米MON87411品系的安全监管提供有效的技术支撑。展开更多
Ultrasmall gold nanoparticles(AuNPs)typically includes atomically precise gold nanoclusters(AuNCs)and AuNPs with a core size below 3 nm.Serving as a bridge between small molecules and traditional inorganic nanoparticl...Ultrasmall gold nanoparticles(AuNPs)typically includes atomically precise gold nanoclusters(AuNCs)and AuNPs with a core size below 3 nm.Serving as a bridge between small molecules and traditional inorganic nanoparticles,the ultrasmall AuNPs show the unique advantages of both small molecules(e.g.,rapid distribution,renal clearance,low non-specific organ accumulation)and nanoparticles(e.g.,long blood circulation and enhanced permeability and retention effect).The emergence of ultrasmall AuNPs creates significant opportunities to address many challenges in the health field including disease diagnosis,monitoring and treatment.Since the nano–bio interaction dictates the overall biological applications of the ultrasmall AuNPs,this review elucidates the recent advances in the biological interactions and imaging of ultrasmall AuNPs.We begin with the introduction of the factors that influence the cellular interactions of ultrasmall AuNPs.We then discuss the organ interactions,especially focus on the interactions of the liver and kidneys.We further present the recent advances in the tumor interactions of ultrasmall AuNPs.In addition,the imaging performance of the ultrasmall AuNPs is summarized and discussed.Finally,we summarize this review and provide some perspective on the future research direction of the ultrasmall AuNPs,aiming to accelerate their clinical translation.展开更多
文摘转基因玉米MON87411是孟山都远东有限公司研发的抗虫耐除草剂玉米转化体,该转化体已获得进口加工原料的农业转基因生物安全证书。以转基因玉米MON87411品系特异性序列为靶标设计引物和探针,经特异性测试、体系优化、灵敏度测试及检出限测试,建立了转基因玉米MON87411的实时荧光PCR定性检测方法。结果表明,该方法能检测出转基因玉米MON87411的转化体成分,检出限(limit of detection,LOD)可达0.05%,具有稳定性好、特异性强、灵敏度高的特点。国内8家转基因生物安全检测机构对本方法进行了特异性测试、检出限测试和再现性测试,循环验证报告显示该方法符合国家标准方法的各项要求,可在检测行业推广应用。研究建立的方法可为我国对转基因玉米MON87411品系的安全监管提供有效的技术支撑。
基金the National Natural Science Foundation of China(Grant 22022403 and 22274058)Fundamental Research Funds for the Central Universities.
文摘Ultrasmall gold nanoparticles(AuNPs)typically includes atomically precise gold nanoclusters(AuNCs)and AuNPs with a core size below 3 nm.Serving as a bridge between small molecules and traditional inorganic nanoparticles,the ultrasmall AuNPs show the unique advantages of both small molecules(e.g.,rapid distribution,renal clearance,low non-specific organ accumulation)and nanoparticles(e.g.,long blood circulation and enhanced permeability and retention effect).The emergence of ultrasmall AuNPs creates significant opportunities to address many challenges in the health field including disease diagnosis,monitoring and treatment.Since the nano–bio interaction dictates the overall biological applications of the ultrasmall AuNPs,this review elucidates the recent advances in the biological interactions and imaging of ultrasmall AuNPs.We begin with the introduction of the factors that influence the cellular interactions of ultrasmall AuNPs.We then discuss the organ interactions,especially focus on the interactions of the liver and kidneys.We further present the recent advances in the tumor interactions of ultrasmall AuNPs.In addition,the imaging performance of the ultrasmall AuNPs is summarized and discussed.Finally,we summarize this review and provide some perspective on the future research direction of the ultrasmall AuNPs,aiming to accelerate their clinical translation.
