浏览全部资源
扫码关注微信
1.延安大学化学与化工学院,陕西 延安 716000
2.延安大学延安医学院,陕西 延安 716000
3.新正检验检测有限公司,新疆 乌鲁木齐 830000
[ "SUN Lingbo(lingbosun@yau.edu.cn)" ]
收稿日期:2024-12-08,
录用日期:2025-01-06,
网络出版日期:2025-01-21,
纸质出版日期:2025-05-25
移动端阅览
张越诚,马静,孙凌波等.基于双发射碳量子点的比率型荧光探针在Mn2+传感与细胞成像中的应用[J].中山大学学报(自然科学版)(中英文),2025,64(03):60-73.
ZHANG Yuecheng,MA Jing,SUN Lingbo,et al.A dual-emission carbon dots-based ratiometric sensor for detection and cellular imaging of Mn2+ ions[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(03):60-73.
张越诚,马静,孙凌波等.基于双发射碳量子点的比率型荧光探针在Mn2+传感与细胞成像中的应用[J].中山大学学报(自然科学版)(中英文),2025,64(03):60-73. DOI: 10.13471/j.cnki.acta.snus.ZR20240347.
ZHANG Yuecheng,MA Jing,SUN Lingbo,et al.A dual-emission carbon dots-based ratiometric sensor for detection and cellular imaging of Mn2+ ions[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(03):60-73. DOI: 10.13471/j.cnki.acta.snus.ZR20240347.
Mn作为一种人体必需的微量元素,在众多生命过程中都发挥着重要作用。近期研究发现,Mn
2+
可独立激活cGAS-STING通路,显著提高免疫治疗效果。但由于Mn
2+
特异性分子探针的缺失,导致Mn
2+
介导cGAS-STING通路免疫调控分子机制的相关研究滞后。因此,急需构建活细胞内Mn
2+
的检测与成像方法。本文使用天冬氨酸与对苯二胺为原材料,通过一步水热法合成了具有双发射特性的碳量子点。当Mn
2+
加入碳量子点溶液时,碳量子点在350 nm处的荧光发射峰显著增强,而其在610 nm处的发射强度基本保持不变。因此,使用350、610 nm处的信号值分别作为响应信号与参比信号,便可构建特异性识别Mn
2+
的比率型荧光探针。在最优的条件下,该探针在0.9~15 μmol/L之间具有良好的线性范围,检出限为61 nmol/L。该探针得益于Mn
2+
介导的比率型荧光信号响应,使其具有出色的灵敏度、特异性以及稳定性,能进一步应用复杂生物样品中Mn
2+
的分析检测与细胞成像,对Mn
2+
介导cGAS-STING通路免疫调控分子机制的研究具有潜在的应用价值。
Manganese (Mn)
an essential trace element in the human body
plays critical roles in many biological processes. Recent studies have discovered that Mn
2+
may promote or directly activate the cGAS-STING pathway
thereby subsequently initiating the natural immune response and augmenting antitumor therapy. However
the current lack of accurate methods for Mn
2+
determination in cells significantly limits their mechanism investigation; hence
it is urgent to establish novel tools to detect Mn
2+
in cells. In this study
the dual-emission carbon dots were initially synthesized via the one-pot hydrothermal method employing
L
-aspartic acid and
p
-phenylenediamine as raw materials. In the presence of Mn
2+
the emission peak centered at 350 nm exhibited significant enhancement
whereas another peak at 610 nm remained stable. Consequently
a ratiometric sensor for Mn
2+
determination was established using the signal at 350 nm as the responsive signal and the signal at 610 nm as an internal reference. Under the optimal condition
a good linear relationship was achieved between the
F
350
/
F
610
value and Mn
2+
concentration ranging from 0.9 to 15 μmol/L
with
a calculated LOD of 61 nmol/L. Benefiting from the special Mn
2+
-induced ratiometric approach
this method demonstrates outstanding sensitivity
selectivity
and stability
rendering it applicable for Mn
2+
determination in complex biological samples
as well as Mn
2+
imaging in MKN-45 and LO2 cells.
BAI J , YUAN G , ZHU Y , et al , 2021 . Study on the origin of fluorescence by using dual-emission carbon dots [J]. J Phys Chem C , 125 ( 33 ): 18543 - 18551 .
CAI L X , WANG Y , CHEN Y Y , et al , 2023 . Manganese(II) complexes stimulate antitumor immunity via aggravating DNA damage and activating the cGAS-STING pathway [J]. Chem Sci , 14 ( 16 ): 4375 - 4389 .
CHAUDHARI K G , PATIL P O , NANGARE S N , et al , 2024 . Exploring the significance of carbon quantum dots and graphene quantum dots in sarcosine sensing: A key biomarker for prognosticating prostate cancer [J]. Chem Select , 9 ( 29 ): e202401643 .
CHEN J , XIA X , LI P , et al , 2023 . A facile “off-on” fluorescence sensor for pentachlorophenol detection based on natural N and S co-doped carbon dots from crawfish shells [J]. Food Chem , 405 ( 30 ): 134802 .
CHEN Y J , SUN J , LUO M P , et al , 2024 . Quantifying the viability of lactic acid bacteria using ratiometric fluorescence assays [J]. Microchem J , 206 : 111485 .
DAS S , KHATUA K , RAKSHIT A , et al , 2019 . Emerging chemical tools and techniques for tracking biological manganese [J]. Dalton Trans , 48 ( 21 ): 7047 - 7061 .
FAN H H , MCGHEE C E , LAKE R J , et al , 2023 . A highly selective Mn(II)-specific DNAzyme and its application in intracellular sensing [J]. JACS Au , 3 ( 6 ): 1615 - 1622 .
GOSHISHT M K , TRIPATHI N , PATRA G K , et al , 2023 . Organelle-targeting ratiometric fluorescent probes: Design principles, detection mechanisms, bio-applications, and challenges [J]. Chem Sci , 14 ( 22 ): 5842 - 5871 .
HORNING K J , CAITO S W , TIPPS K G , et al , 2015 . Manganese is essential for neuronal health [J]. Annu Rev Nutr , 35 ( 1 ): 71 - 108 .
KWAKYE G , PAOLIELLO M , MUKHOPADHYAY S , et al , 2015 . Manganese-induced parkinsonism and parkinson’s disease: shared and distinguishable features [J]. Int J Environ Res Public Health , 12 ( 7 ): 7519 - 7540 .
LI J , CEN Y , LI Y , 2018 . The research advances in the mechanism of manganese-induced neurotoxicity [J]. Toxin Rev , 38 ( 1 ): 54 - 60 .
LIN S Q , JIA B Z , LUO W , et al , 2023 . Controllable formation of polydopamine on carbon dots for ultrasensitive detection of alkaline phosphatase and ratiometric fluorescence immunoassay of benzocaine [J]. Food Chem , 426 ( 15 ): 136582 .
LV M , CHEN M , ZHANG R , et al , 2020 . Manganese is critical for antitumor immune responses via cGAS-STING and improves the efficacy of clinical immunotherapy [J]. Cell Res , 30 ( 11 ): 966 - 979 .
MIZUNUMA M , SUZUKI M , KOBAYASHI T , et al , 2023 . Development of Mn 2+ -specific biosensor using G-quadruplex-based DNA [J]. Int J Mol Sci , 24 ( 14 ): 11556 .
MOHAGHEGHPOUR E , FARZIN L , GHOORCHIAN A , et al , 2022 . Selective detection of manganese (II) ions based on the fluorescence turn-on response via histidine functionalized carbon quantum dots [J]. Spectrochimi Acta A , 279 ( 15 ): 121409 .
NGEONTAE W , CHAIENDOO K , NGAMDEE K. , et al , 2022 . A highly selective fluorescent sensor for manganese (II) ion detection based on N, S-doped carbon dots triggered by manganese oxide [J]. Dyes Pigm , 203 : 110325 .
POURJAVID M R , ARABIEH M , YOUSEFI S R , et al , 2016 . Interference free and fast determination of manganese(II), iron(III) and copper(II) ions in different real samples by flame atomic absorption spectroscopy after column graphene oxide-based solid phase extraction [J]. Microchem J , 129 : 259 - 267 .
SHI Y H , SHI Y , WANG Z Y , et al , 2023 . Glucose-responsive mesoporous prussian blue nanoprobes coated with ultrasmall gold and manganese dioxide for magnetic resonance imaging and enhanced antitumor therapy [J]. Chen Eng J , 453 : 139885 .
TUERHONG M , YANG X , XUE B Y , 2017 . Review on carbon dots and their applications [J]. Chinese J Anal Chem , 45 ( 1 ): 139 - 150 .
WANG F H , DONG X Z , ZUO Y J , et al , 2024 . Effectively enhancing red fluorescence strategy and bioimaging applications of carbon dots [J]. Mater Today Phys , 41 : 101332 .
WANG Y , ZHANG C , CHEN X , et al , 2016 . Ratiometric fluorescent paper sensor utilizing hybrid carbon dots-quantum dots for the visual determination of copper ions [J]. Nanoscale , 8 ( 11 ): 5977 - 5984 .
YU P , WEN X , TOH Y R , et al , 2012 . Temperature-dependent fluorescence in carbon dots [J]. J Phys Chem C , 116 ( 48 ): 25552 - 25557 .
ZHANG J , CHEN Y , QI J , et al , 2024 . A paper-based ratiometric fluorescence sensor based on carbon dots modified with Eu 3+ for the selective detection of tetracycline in seafood aquaculture water [J]. Analyst , 149 ( 5 ): 1571 - 1578 .
ZHANG Y C , LI C J , SUN L B , et al , 2021 . Defects coordination triggers red-shifted photoluminescence in carbon dots and their application in ratiometric Cr(VI) sensing [J]. Microchem J , 169 : 106552 .
ZHANG Z , SHANG C , ZHAO W , et al , 2022 . 3,3′,5,5′-Tetramethylbenzidine and polyetherimide decorated silver nanoparticles for colorimetric Mn 2+ ions detection in aqueous solution [J]. Chem Pap , 76 ( 11 ): 7253 - 7260 .
0
浏览量
9
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构