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浏览/检索结果:
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Facile fluorescence detection of malachite green in fish using molecularly imprinted polymers doped CdTe quantum dots based system
期刊论文
FOOD CHEMISTRY, 2024, 卷号: 442, 页码: 10
作者:
Zhang, Yimeng
;
Wang, Chuanliang
;
Wei, Guo
;
Wang, Xuesong
;
Liu, Wanhui
;
Yang, Gangqiang
;
Zhang, Peng
;
Li, Qinglian
;
Geng, Xuhui
;
Chen, Lingxin
;
Song, Zhihua
收藏
  |  
浏览/下载:97/0
  |  
提交时间:2024/05/07
Fluorescence detection
CdTe quantum dots
Molecularly imprinted polymers
Malachite green
Fish tissues
A reaction-based ratiometric fluorescent probe for mercury ion detection in aqueous solution
期刊论文
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2020, 卷号: 243, 页码: 6
作者:
Liu, Shudi
;
Feng, Di
;
Zhang, Liangwei
;
Song, He
;
Wang, Yue
;
Zhang, Xia
;
Zhao, Qingjun
;
Chen, Lingxin
Adobe PDF(1234Kb)
  |  
收藏
  |  
浏览/下载:738/256
  |  
提交时间:2021/06/21
Fluorescent probe
Mercury ion
Detection
Ratiometric
Fluorescence imaging
Fluorescent nanosensor designing via hybrid of carbon dots and post- imprinted polymers for the detection of ovalbumin
期刊论文
TALANTA, 2020, 卷号: 211, 页码: 120727
作者:
Wang, Xiaoyan
;
Yu, Shuangmei
;
Wang, Jiangru
;
Yu, Jialuo
;
Arabi, Maryam
;
Fu, Longwen
;
Li, Bowei
;
Li, Jinhua
;
Chen, Lingxin
Adobe PDF(1636Kb)
  |  
收藏
  |  
浏览/下载:827/403
  |  
提交时间:2020/07/08
RATIOMETRIC FLUORESCENCE
OPTICAL-DETECTION
GLYCOPROTEIN
AFFINITY
RECOGNITION
SEPARATION
STRATEGY
SENSOR
PH
A label-free protamine-assisted colorimetric sensor for highly sensitive detection of S1 nuclease activity
期刊论文
ANALYST, 2020, 卷号: 145, 期号: 7, 页码: 2774-2778
作者:
Wen, Jiahui
;
Liu, Yongming
;
Li, Jingwen
;
Lin, Hao
;
Zheng, Yiran
;
Chen, Yan
;
Fu, Xiuli
;
Chen, Lingxin
浏览
  |  
Adobe PDF(2334Kb)
  |  
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  |  
浏览/下载:667/297
  |  
提交时间:2020/07/08
SINGLE-STRANDED-DNA
TURN-ON DETECTION
COPPER NANOPARTICLES
ENZYMATIC CLEAVAGE
OXIDATIVE DAMAGE
ASSAY
FLUORESCENCE
INHIBITION
GOLD
UNIVERSAL
Ratiometric fluorescence and colorimetry dual-mode assay based on manganese dioxide nanosheets for visual detection of alkaline phosphatase activity
期刊论文
SENSORS AND ACTUATORS B-CHEMICAL, 2020, 卷号: 302, 页码: 127176
作者:
Yang, Q
;
Wang, XY
;
Peng, HL
;
Arabi, M
;
Li, JH
;
Xiong, H
;
Choo, J
;
Chen, LX
浏览
  |  
Adobe PDF(5034Kb)
  |  
收藏
  |  
浏览/下载:768/436
  |  
提交时间:2020/07/08
Alkaline phosphatase
Visual detection
Ratiometric fluorescence
Colorimetry
Dual-mode assay
Dual-emission color-controllable nanoparticle based molecular imprinting ratiometric fluorescence sensor for the visual detection of Brilliant Blue
期刊论文
SENSORS AND ACTUATORS B-CHEMICAL, 2019, 卷号: 284, 页码: 428-436
作者:
Yang, Q
;
Li, JH
;
Wang, XY
;
Peng, HL
;
Xiong, H
;
Chen, LX
浏览
  |  
Adobe PDF(2081Kb)
  |  
收藏
  |  
浏览/下载:580/305
  |  
提交时间:2020/07/08
Molecular imprinting
Ratiometric fluorescence
Dual-emission nanoparticles
Brilliant Blue
Visual detection
Glucose biosensor using fluorescence quenching with chitosan-modified graphene oxide
期刊论文
MICRO & NANO LETTERS, 2019, 卷号: 14, 期号: 3, 页码: 344-348
作者:
Li, WJ
;
Jiang, TT
;
Pu, Y
;
Jiao, XD
;
Tan, WQ
;
Qin, S
Adobe PDF(1618Kb)
  |  
收藏
  |  
浏览/下载:403/92
  |  
提交时间:2020/07/08
biochemistry
biosensors
nanosensors
nanofabrication
fluorescence
molecular biophysics
radiation quenching
chemical sensors
sugar
proteins
biomedical optical imaging
graphene compounds
GO-CS
low concentrations
competitive binding
maltose-binding protein
recombinant phycocyanin
far-red fluorescence
MBP-rPC
rPC emission
rPC fluorescence
linear detection range
glucose biosensor
fluorescence quenching
chitosan-modified graphene oxide
low-molecular-weight chitosan
glucose detection
fluorescence resonance energy transfer
graphene oxide nanomaterial
mass 0
1 mg to 1
0 mg
CO
食用蔬菜能吸收和积累微塑料
期刊论文
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:
李连祯
;
周倩
;
尹娜
;
涂晨
;
骆永明
收藏
  |  
浏览/下载:536/0
  |  
提交时间:2020/06/17
微塑料
生菜
聚苯乙烯微球
吸收
积累
健康风险
microplastics
lettuce
polystyrene microbeads
uptake
accumulation
human health risk
Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.
Functional ZnS:Mn(II) quantum dot modified with L-cysteine and 6-mercaptonicotinic acid as a fluorometric probe for copper(II)
期刊论文
MICROCHIMICA ACTA, 2018, 卷号: 185, 期号: 9
作者:
Wang, Jiangru
;
Yu, Jialuo
;
Wang, Xiaoyan
;
Wang, Liyan
;
Li, Bowei
;
Shen, Dazhong
;
Kang, Qi
;
Chen, Lingxin
浏览
  |  
Adobe PDF(2798Kb)
  |  
收藏
  |  
浏览/下载:730/300
  |  
提交时间:2020/07/08
Copper ions
Nanoparticles
Fluorescent detection
Ratiometric fluorescence
Quenching
Dual emission
Water-soluble
Water samples
Manganese-doped ZnS
Electron transfer
Functionalization
Chemodosimeter-based fluorescent detection of L-cysteine after extracted by molecularly imprinted polymers
期刊论文
TALANTA, 2014, 卷号: 120, 页码: 297-303
作者:
Cai, Xiaoqiang
;
Li, Jinhua
;
Zhang, Zhong
;
Wang, Gang
;
Song, Xingliang
;
You, Jinmao
;
Chen, Lingxin
浏览
  |  
Adobe PDF(1218Kb)
  |  
收藏
  |  
浏览/下载:1425/495
  |  
提交时间:2014/07/08
Molecularly Imprinted Polymer
Fluorescence Detection
L-cysteine
Chemodosimeter
Rhodamine b