Abstract
Thiol molecules play a crucial role in natural and physiological systems. Thus, the exploration of efficient fluorescent (FL) probes for thiols is highly demanded. Here, we demonstrate that the ratiometric FL detection of thiols can be achieved using a CuI modified FL-Mg-coordination polymer (CP) formulated as [Mg 2 (1,4-NDC) 2 (H 2 O) 2 ](bpy)(H 2 O) 4 (1,4-NDCH 2 = 1,4-naphthalene dicarboxylic acid, bpy = 4,4′-dipyridyl). This FL composite (1-CuI) shows dual emission generated from the host framework of Mg-CP and CuI-bpy interactions. Due to the strong coordination interaction between the sulfhydryl and Cu atom, CuI was "stuck down" by the thiols and the energy transfer between the host framework of Mg-CP and the CuI-bpy moiety was cut off. As a result, the corresponding FL of 1-CuI changes from light green to blue and a reliable ratiometric FL assay for thiols was generated. Moreover, quantitative detection of thiols could be easily realized through measuring the ratio of FL intensity for Mg-CP (I 420 ) to that for CuI-bpy (I 535 ). Notably, due to the channel-confined effect of the Mg-CP, the dual emitting composite exhibited a unique size-selectivity for thiols with different substituent groups.
| Original language | English |
|---|---|
| Pages (from-to) | 13367-13374 |
| Number of pages | 8 |
| Journal | Journal of Materials Chemistry C |
| Volume | 6 |
| Issue number | 48 |
| DOIs | |
| Publication status | Published - Jan 1 2018 |
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ASJC Scopus subject areas
- Chemistry(all)
- Materials Chemistry
Cite this
A CuI modified Mg-coordination polymer as a ratiometric fluorescent probe for toxic thiol molecules. / Wu, Zhao Feng; Tan, Bin; Gong, Liao Kuo; Zhang, Xu; Wang, Hao; Fang, Yang; Hei, Xiu Ze; Zhang, Zhi Zhuan; Zhang, Guo Yu; Huang, Xiao Ying; Li, Jing.
In: Journal of Materials Chemistry C, Vol. 6, No. 48, 01.01.2018, p. 13367-13374.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A CuI modified Mg-coordination polymer as a ratiometric fluorescent probe for toxic thiol molecules
AU - Wu, Zhao Feng
AU - Tan, Bin
AU - Gong, Liao Kuo
AU - Zhang, Xu
AU - Wang, Hao
AU - Fang, Yang
AU - Hei, Xiu Ze
AU - Zhang, Zhi Zhuan
AU - Zhang, Guo Yu
AU - Huang, Xiao Ying
AU - Li, Jing
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Thiol molecules play a crucial role in natural and physiological systems. Thus, the exploration of efficient fluorescent (FL) probes for thiols is highly demanded. Here, we demonstrate that the ratiometric FL detection of thiols can be achieved using a CuI modified FL-Mg-coordination polymer (CP) formulated as [Mg 2 (1,4-NDC) 2 (H 2 O) 2 ](bpy)(H 2 O) 4 (1,4-NDCH 2 = 1,4-naphthalene dicarboxylic acid, bpy = 4,4′-dipyridyl). This FL composite (1-CuI) shows dual emission generated from the host framework of Mg-CP and CuI-bpy interactions. Due to the strong coordination interaction between the sulfhydryl and Cu atom, CuI was "stuck down" by the thiols and the energy transfer between the host framework of Mg-CP and the CuI-bpy moiety was cut off. As a result, the corresponding FL of 1-CuI changes from light green to blue and a reliable ratiometric FL assay for thiols was generated. Moreover, quantitative detection of thiols could be easily realized through measuring the ratio of FL intensity for Mg-CP (I 420 ) to that for CuI-bpy (I 535 ). Notably, due to the channel-confined effect of the Mg-CP, the dual emitting composite exhibited a unique size-selectivity for thiols with different substituent groups.
AB - Thiol molecules play a crucial role in natural and physiological systems. Thus, the exploration of efficient fluorescent (FL) probes for thiols is highly demanded. Here, we demonstrate that the ratiometric FL detection of thiols can be achieved using a CuI modified FL-Mg-coordination polymer (CP) formulated as [Mg 2 (1,4-NDC) 2 (H 2 O) 2 ](bpy)(H 2 O) 4 (1,4-NDCH 2 = 1,4-naphthalene dicarboxylic acid, bpy = 4,4′-dipyridyl). This FL composite (1-CuI) shows dual emission generated from the host framework of Mg-CP and CuI-bpy interactions. Due to the strong coordination interaction between the sulfhydryl and Cu atom, CuI was "stuck down" by the thiols and the energy transfer between the host framework of Mg-CP and the CuI-bpy moiety was cut off. As a result, the corresponding FL of 1-CuI changes from light green to blue and a reliable ratiometric FL assay for thiols was generated. Moreover, quantitative detection of thiols could be easily realized through measuring the ratio of FL intensity for Mg-CP (I 420 ) to that for CuI-bpy (I 535 ). Notably, due to the channel-confined effect of the Mg-CP, the dual emitting composite exhibited a unique size-selectivity for thiols with different substituent groups.
UR - http://www.scopus.com/inward/record.url?scp=85058502584&partnerID=8YFLogxK
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U2 - 10.1039/c8tc04626c
DO - 10.1039/c8tc04626c
M3 - Article
VL - 6
SP - 13367
EP - 13374
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
SN - 2050-7526
IS - 48
ER -