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One-pot Microwave Hydrothermal Synthesis of Magnetic-fluorescent Carbon Dots for Latent Fingerprint Visualization 认领 引用
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作者 LIU Jie LIU Deyang +3 位作者 ZHAI Chunfeng GONG Qiufang LIANG Chao ZHAO Yunyang 《发光学报》 EI CAS CSCD 北大核心 2026年第4期714-723,共10页
A magnetic-fluorescent nanocomposite(CDs-MNPs)was synthesized via a facile one-pot microwave hy-drothermal method using polyethyleneimine(PEI)as a bridging agent.PEI connected magnetic nanoparticles(MNPs)and carbon do... A magnetic-fluorescent nanocomposite(CDs-MNPs)was synthesized via a facile one-pot microwave hy-drothermal method using polyethyleneimine(PEI)as a bridging agent.PEI connected magnetic nanoparticles(MNPs)and carbon dots(CDs),forming a fluffy clustered structure with nanoscale gaps,which effectively sup⁃pressed aggregation-induced photoluminescence quenching(AIQ).CDs-MNPs exhibited a saturation magnetization of 10.4 emu/g and stable solid-state green fluorescence.Benefiting from integrated magnetism,fluorescence,and strong adsorption to fingerprint residues,it achieved clear latent fingerprint(LFP)visualization on dark substrates. 展开更多
关键词 hydrothermal synthesis magnetic-fluorescence carbon dots latent fingerprint
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Construction of a magnetic driven-quantum dots ratiometric fluorescence-immunosensor for rapid and accurate detection of Creactive protein 认领 引用 被引量：1
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作者 Shenping Yu Yangchao Shi +10 位作者 Yanbing Lv Li Wang Yuke Ma Ning Li Xiuyuan Zuo Yifan Li Jinjin Fan Zifeng Zhang Ruii Wu Huaibin Shen Lin Song Li 《Nano Research》 SCIE EI CSCD 2025年第9期18-30,共13页
Efficient,sensitive,and convenient quantum dots(QDs)fluorescent immunosensors have a wide range of applications in the field of in vitro diagnostics(IVD).However,traditional single-signal readout methods are susceptib... Efficient,sensitive,and convenient quantum dots(QDs)fluorescent immunosensors have a wide range of applications in the field of in vitro diagnostics(IVD).However,traditional single-signal readout methods are susceptible to interference,have limited sensitivity,and involve time-consuming detection processes.These have become key bottlenecks restricting their use in point-of-care(POC)detection.Herein,we developed a novel immunosensor based on QDs ratiometric fluorescence(QRF)and magnetic driven technology for sensitive,rapid,accurate detection of C-reactive protein(CRP).High-quality magnetic-fluorescent QDs nanobeads(QBs)were prepared by efficiently and orderly layered loading of magnetic nanoparticles(MNP)and red QDs using mesoporous silica nanoparticles(MSN)as a template.The magnetic driven-QRF-immunosensor was constructed based on green QDs probes-functionalized microplate.The results showed that the linear range of magnetic-fluorescence probes for the detection of CRP was 0.1–1000 ng/mL,with a sensitivity of up to 0.05 ng/mL.Compared to conventional QRF-immunosensor,the detection time was halved(within 30 min),and the sensitivity improved by approximately 5-fold.Recovery experiments and clinical sample analyses also demonstrated the good accuracy of this immunoassay.Therefore,the constructed novel magnetic driven-QRF-immunosensor shows great potential for clinical diagnosis and disease monitoring,and is expected to be applied in POC detection as a new generation of detection technology. 展开更多
关键词 magnetic-fluorescent quantum dots ratiometric fluorescence magnetic driven immunosensor rapid and accurate
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