A well-defined alternating copolymer based on a salicylaldimine Schiff base for highly sensitive zinc(ii) detection and pH sensing in aqueous solution

2015 ◽  
Vol 6 (7) ◽  
pp. 1127-1136 ◽  
Author(s):  
Shangfeng Wang ◽  
Bin Wu ◽  
Feng Liu ◽  
Yun Gao ◽  
Weian Zhang
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Zinc Ions ◽  
Ph Sensing ◽  
Alternating Copolymer ◽  
Highly Sensitive ◽  
New Strategy

We report a new strategy to fabricate well-defined alternating Schiff base copolymers of poly(VBCDEG-alt-SaAEMI)s which display two distinguishable color fluorescence “OFF–ON” responses to zinc ions and pH in aqueous solution.

A facile fluorescent chemosensor based on naphthalene-derived Schiff base for zinc ions in aqueous solution

2014 ◽  
Vol 6 (11) ◽  
pp. 3560-3563 ◽  
Author(s):  
Kai Wu ◽  
Yuting Gao ◽  
Zhenni Yu ◽  
Fangqi Yu ◽  
Juhua Jiang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Fluorescent Chemosensor ◽  
Selective Detection ◽  
Zinc Ions

A facile naphthalene-based Schiff base chemosensor, 1-((pyridin-2-ylmethylimino)methyl)naphthalen-2-ol, has been designed and synthesized for selective detection of Zn2+ions.

A water-soluble cyclometalated iridium(iii) complex for pH sensing based on aggregation-induced enhanced phosphorescence

2019 ◽  
Vol 48 (23) ◽  
pp. 8068-8075 ◽  
Author(s):  
Keiji Ohno ◽  
Tetuya Sakata ◽  
Machi Shiiba ◽  
Akira Nagasawa ◽  
Takashi Fujihara
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Water Soluble ◽  
The Novel ◽  
Ph Sensing ◽  
Ph Responsive ◽  
Protonated Species

The novel Na[Ir(ppy)2(SB-COO)] (Hppy = phenylpyridine; HSB-COOH = 4-carboxylanilinesalicylaldehyde Schiff base) in aqueous solution showed pH-responsive aggregation-induced enhanced phosphorescence (AIEP) by the formation of the protonated species [Ir(ppy)2(SB-COOH)].

scholarly journals Self-assembly induced luminescence of Eu3+-complexes and application in bioimaging

2021 ◽  
Author(s):  
Ping-Ru Su ◽  
Tao Wang ◽  
Pan-Pan Zhou ◽  
Xiao-Xi Yang ◽  
Xiao-Xia Feng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Rare Earth ◽  
Luminescence Intensity ◽  
Self Assembly ◽  
Room Temperature ◽  
Molecular Motion ◽  
Proof Of Concept ◽  
Room Temperature Phosphorescence ◽  
New Strategy ◽  
Size Controlled

Abstract Design and engineering of highly efficient emitting materials with assembly-induced luminescence, such as room temperature phosphorescence (RTP) and aggregation-induced emission (AIE), have stimulated extensive efforts. Here, we propose a new strategy to obtain size-controlled Eu3+-complex nanoparticles (Eu-NPs) with self-assembly induced luminescence (SAIL) characteristics without encapsulation or hybridization. Compared with previous RTP or AIE materials, the SAIL phenomena of increased luminescence intensity and lifetime in aqueous solution for the proposed Eu-NPs are due to the combined effect of self-assembly in confining the molecular motion and shielding the water quenching. As a proof of concept, we also show that this system can be further applied in bioimaging, temperature measurement and HClO sensing. The SAIL activity of the rare-earth (RE) system proposed here offers a further step forward on the roadmap for the development of RE light conversion systems and their integration in bioimaging and therapy applications.

scholarly journals Highly sensitive detection of nitrobenzene by a series of fluorescent 2D zinc(ii) metal–organic frameworks with a flexible triangular ligand

RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 23975-23984
Author(s):  
Xue Yang ◽  
Yixia Ren ◽  
Hongmei Chai ◽  
Xiufang Hou ◽  
Zhixiang Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Metal Organic Frameworks ◽  
High Sensitivity ◽  
Fluorescent Sensors ◽  
Sensitive Detection ◽  
Donor Ligands ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Highly Sensitive Detection

Four fluorescent 2D Zn-MOFs based on a flexible triangular ligand and linear N-donor ligands are hydrothermally prepared and used to detect nitrobenzene in aqueous solution with high sensitivity, demonstrating their potential as fluorescent sensors.

AIE-active Schiff base compounds as fluorescent probe for the highly sensitive and selective detection of Al3+ ions

2021 ◽  
Vol 233 ◽  
pp. 117911
Author(s):  
Minmin Wang ◽  
Linxia Lu ◽  
Wenwu Song ◽  
Xunyue Wang ◽  
Tongming Sun ◽  
...  
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
Selective Detection ◽  
Highly Sensitive

Schiff base equilibria. II. Beryllium complexes of N-n-butylsalicylideneimine and the hydrolysis of the Be2+ ion

1965 ◽  
Vol 18 (5) ◽  
pp. 651 ◽  
Author(s):  
RW Green ◽  
PW Alexander
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Complex Formation ◽  
Distribution Coefficient ◽  
Dilute Aqueous Solution ◽  
The Stability ◽  
Ph Range ◽  
Hydrolysis Of ◽  
Beryllium Complexes ◽  
Equilibria In Aqueous Solution

The Schiff base, N-n-butylsalicylideneimine, extracts more than 99.8% beryllium into toluene from dilute aqueous solution. The distribution of beryllium has been studied in the pH range 5-13 and is discussed in terms of the several complex equilibria in aqueous solution. The stability constants of the complexes formed between beryllium and the Schiff base are log β1 11.1 and log β2 20.4, and the distribution coefficient of the bis complex is 550. Over most of the pH range, hydrolysis of the Be2+ ion competes with complex formation and provides a means of measuring the hydrolysis constants. They are for the reactions: Be(H2O)42+ ↔ 2H+ + Be(H2O)2(OH)2, log*β2 - 13.65; Be(H2O)42+ ↔ 3H+ + Be(H2O)(OH)3-, log*β3 -24.11.

A highly sensitive chemosensor for rapid recognition of Cu2+ and HSO3– in 100% aqueous solution

2021 ◽  
pp. 120215
Author(s):  
Zhipeng Ou ◽  
Shuzhi Liu ◽  
Yijiang Liu ◽  
Hongbiao Chen ◽  
Huaming Li
Keyword(s):  
Aqueous Solution ◽  
Highly Sensitive

A Highly Sensitive and Selective Fluorescent Chemodosimeter for Hg2+ in Neutral Aqueous Solution

2007 ◽  
Vol 17 (5) ◽  
pp. 460-465 ◽  
Author(s):  
Fang-Ying Wu ◽  
Yong-Qiang Zhao ◽  
Zhao-Jun Ji ◽  
Yu-Mei Wu
Keyword(s):  
Aqueous Solution ◽  
Highly Sensitive ◽  
Neutral Aqueous Solution ◽  
Fluorescent Chemodosimeter
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