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Advanced Sensor and Energy Materials 2022年第2期1卷 20-26页

作者： Fengxia Tong Xiangxiang Zhang Zeyan Wang Yuanyuan Liu Peng Wang Hefeng Cheng Ying Dai Zhaoke Zheng Baibiao Huang State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China School of Physics Shandong UniversityJinan 250100China

Photo-induced selective shortening strategy was developed to synthesize au nanorods(NRs)with different aspect ratios,and in situ observation of photo-induced shortening of single au nanorod was realized,which is helpful for understanding the relationship between SPR decay and geometric *** as-synthesized plasmonic Pd–au NRs exhibit efficient formic acid *** impressively,the interfacial interaction between plasmonic bimetallic nanostructures and adsorbed molecules(HCOOH)was explored in situ at the single-particle *** photoluminescence(PL)quenching of Pd–au NRs was observed when HCOOH contacted the catalyst,confirming the charge transfer between Pd–au NRs and HCOOH ***,we shed light on the catalytic mechanism of plasmon-induced HCOOH dehydrogenation by coupling single-particle PL measurement with finite difference time domain(FDTD)and density functional theory(DFT)calculations.

关键词： Photo-induced shortening au nanorod Plasmon-enhanced formic acid dehydrogenation Single-particle PL spectrum

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Construction of triblock copolymer-gold nanorod composites for fluorescence resonance energy transfer via pH-sensitive allosteric

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Chinese Chemical Letters 2020年第12期31卷 3131-3134页

作者： Li Zeng Zhipeng Su Xingyi Li Shuai Shi Institute of Biomedical Engineering School of Ophthalmology&Optometry and Eye HospitalWenzhou Medical UniversityWenzhou 325027China Department of Neurosurgery First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000China

To explore the effects of microenvironmental adjustments on fluorescence,a pH-sensitive nanocomposite system based on fluorescence resonance energy transfer(FRET)was *** model system included a modified triblock copolymer(polyhistidine-b-polyethylene glycol-b-polycaprolactone)and gold nanoparticles.A near-infrared dye was used as the donor,and spectrally matched gold nanorods,attached after C-terminus modification with α-lipoic acid,were used as the receptor to realize control of the FRET effect over the fluorescence intensity for two polymer configurational changes(i.e.,"folded"and"stretched"states)in response to *** synthesis and characterization,we investigated the self-assembly behavior of the *** by quartz crystal microbalance revealed the pH sensitivity of the polymer,which exhibited"folding"and"stretching"states with changes in pH,providing a structural basis for the FRET *** spectrophotometry investigations also revealed the regulatory impact of the assembled system on fluorescence.

关键词： Fluorescence resonance energy transfer pH response Self-assembled nanoparticle au nanorod Block copolymer

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High Temperature Seedless Synthesis of au NRs Using BDAC/CTAB Co-surfactant

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Chinese Journal of Chemical Physics 2008年第5期21卷 476-480页

作者： Min Li Lai Wei Xian Zhang Xue-feng Yu Department of Physics Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education Wuhan University Wuhan 430072 China

au nanorods have been successfully synthesized at 90 ℃ by using hexadecyltrimethylammonium bromide （CTAB） and benzyldimethylammoniumchloride hydrate （BDAC） co-surfactant. At 90 ℃, the reaction time was less than 10 s, and the longitudinal surface plasmon absorption band could vary between 680 and 770 nm by adjusting the molar ratio of BDAC to CTAB from 2 to 0.5. At 90 ℃, nanorods with a longitudinal surface plasmon absorption peak of 770 nm can be obtained when the molar ratio of BDAC to CTAB was 3：2.

关键词： au nanorod Hexdecyltrimethylammonium bromide Benzyldimethylammoniumchloride hydrate High temperature

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