A chiral carbazole based sensor for sequential “on-off-on” fluorescence detection of Fe3+ and tryptophan/histidine

Pundi, Arul; Chang, Chi‐Jung; Chen, Jemkun; Hsieh, Shih‐Rong; Lee, Ming-Ching

doi:10.1016/j.snb.2020.129084

Cited by 65 publications

(22 citation statements)

References 63 publications

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“…Therefore, the ligand in 4 is adopted through type III coordination, resulting in a 2D 3,4-connected bex topology. Thus, when utilizing different anions and the flexibility of different polyazole moieties, the crystal structure can be altered, and interesting results can be obtained. , …”

Section: Resultsmentioning

confidence: 99%

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Anion-Controlled Assembly of a Silver-Responsive Bifunctional Coordination Polymer with Detection and Large Adsorption Capacity

et al. 2022

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The recognition and adsorption of silver ions (Ag + ) from industrial wastewater are necessary but still challenging. Herein, we constructed four Zn(II)-based coordination polymers (CPs), namely, [Zn(btap) and [Zn(btap)Cl 2 ] n (4), by using 3,5-bis(triazol-1-yl)pyridine (btap) with different anionic Zn(II) salts. The crystal structures of 1−4, varying from onedimensional beaded (1) and zigzag chain (2) to two-dimensional sql (3) and bex (4) typologies, were regulated by the coordination modes of btap and the counter-anions. The water stability, pH stability, thermostability, and luminescent properties of the CPs were investigated. The luminescence performances in a series of cations and anions were also explored. Considering the high density of chloride groups in the structure, 4 showed luminescence sensing for Ag + [K SV = 9188.45 M −1 and a limit of detection (LOD) of 4.9 μM], as well as an excellent ability for Ag + adsorption in aqueous solution (maximum adsorption capacity, 653.3 mg/g). Additionally, anti-interference experiments revealed that 4 had excellent recognition and adsorption capacities for Ag + even when multiple ions coexisted. Moreover, XRD, EDS, and XPS analyses confirmed that the coordination of Ag + with chloride groups in 4 resulted in excellent adsorption capacity and prevented ligand-to-ligand electron transfer, showing excellent detection ability. Suitable coordination sites were introduced to interact strongly with Ag + , along with detection and large adsorption capacity. Our strategy can effectively design and develop multifunctional CP-based materials, which are applicable in removal processes and environmental protection, by regulating anions in the self-assembly and introducing CP functional groups.

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Section: Resultsmentioning

confidence: 99%

“…Consequently, negative anions participate in the self-assembly process to equilibrate the charge of the framework. This mechanism provides a major opportunity to adjust the performance of CPs through the purposeful introduction of functional groups of anions. , …”

Section: Introductionmentioning

confidence: 99%

Anion-Controlled Assembly of a Silver-Responsive Bifunctional Coordination Polymer with Detection and Large Adsorption Capacity

et al. 2022

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“…Nonetheless, this research opens up a possible pathway to synthesize different chiral fluorescent sensors. Subsequently, Pundi et al 158 synthesized a chiral carbazole sensor (CCS), bearing a "ureacarboxylic acid" binding site, for quantitative fluorescence detection of tryptophan. CCS sensor can act as a reversible fluorescence quenching sensor for Fe 3+ .…”

Section: Optical Detection Of Tryptophanmentioning

confidence: 99%

Recent Advances in Electrochemical and Optical Sensors for Detecting Tryptophan and Melatonin

Khan¹,

Hong²,

Lee³

et al. 2021

IJN

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Tryptophan and melatonin are pleiotropic molecules, each capable of influencing several cellular, biochemical, and physiological responses. Therefore, sensitive detection of tryptophan and melatonin in pharmaceutical and human samples is crucial for human wellbeing. Mass spectrometry, high-performance liquid chromatography, and capillary electrophoresis are common methods for both tryptophan and melatonin analysis; however, these methods require copious amounts of time, money, and manpower. Novel electrochemical and optical detection tools have been subjects of intensive research due to their ability to offer a better signal-to-noise ratio, high specificity, ultra-sensitivity, and wide dynamic range. Recently, researchers have designed sensitive and selective electrochemical and optical platforms by using new surface modifications, microfabrication techniques, and the decoration of diverse nanomaterials with unique properties for the detection of tryptophan and melatonin. However, there is a scarcity of review articles addressing the recent developments in the electrochemical and optical detection of tryptophan and melatonin. Here, we provide a critical and objective review of high-sensitivity tryptophan and melatonin sensors that have been developed over the past six years (2015 onwards). We review the principles, performance, and limitations of these sensors. We also address critical aspects of sensitivity and selectivity, limit and range of detection, fabrication process and time, durability, and biocompatibility. Finally, we discuss challenges related to tryptophan and melatonin detection and present future outlooks.

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“…Due to the importance of simultaneous detection of multiple analytes in different matrices, synthesis and design of biochemical/chemical probes for sequential multi-component detection of analytes have recently drawn great attention 9 , 16 , 21 , 22 . Generally, these sensors could respond to multiple ions 23 or small molecules 24 , even some of them can sequentially detect ions or molecules 25 .…”

Section: Introductionmentioning

confidence: 99%

Catalytic nanozyme Zn/Cl-doped carbon quantum dots as ratiometric fluorescent probe for sequential on-off-on detection of riboflavin, Cu2+ and thiamine

Dadkhah

Mehdinia

Jabbari

et al. 2022

Sci Rep

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A novel metal-doped Zn/Cl carbon quantum dots (Zn/Cl-CQDs) was developed successfully as ratiometric fluorescent probes for the sequential on-off-on detection of riboflavin, Cu2+ ion and thiamine. The excellent catalytic performance of the Zn/Cl-CQDs nanozyme serves as an ideal platform for sensitive detection of thiamine. Due to the addition of riboflavin to the Zn/Cl-CQDs, the blue emission peak of Zn/Cl-CQDs at 440 nm remains unaffected and used as an internal reference approach, while the green emission peak of riboflavin at 520 nm appeared and increased remarkably. Following the presence of Cu2+, a quenching blue fluorescence signal of Zn/Cl-CQDs was observed which resulted in consequent fluorescent ‘turn-off’ response toward Cu2+ ion. Finally, upon the addition of thiamine to the above solution under alkaline condition, the blue emission of Zn/Cl-CQDs was gradually recovered. The prepared Zn/Cl-CQDs could act as a nanozyme catalyst for directly catalyzing the oxidation of non-fluorescent substrate of thiamine to produce highly fluorescent substrate of thiochrome. As a result, the blue fluorescence emission peak at 440 nm was recovered. Eventually, the sequential detection properties of ratiometric probes for riboflavin, Cu2+ ion and thiamine were successfully applied in VB2 tablets, drinking water and VB1 tablet with good recoveries of 96.21%, 98.25% and 98.44%, respectively.

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A chiral carbazole based sensor for sequential “on-off-on” fluorescence detection of Fe3+ and tryptophan/histidine

Cited by 65 publications

References 63 publications

Anion-Controlled Assembly of a Silver-Responsive Bifunctional Coordination Polymer with Detection and Large Adsorption Capacity

Anion-Controlled Assembly of a Silver-Responsive Bifunctional Coordination Polymer with Detection and Large Adsorption Capacity

Recent Advances in Electrochemical and Optical Sensors for Detecting Tryptophan and Melatonin

Catalytic nanozyme Zn/Cl-doped carbon quantum dots as ratiometric fluorescent probe for sequential on-off-on detection of riboflavin, Cu2+ and thiamine

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