Significant enhancement of curcumin photoluminescence by a photosensitizing organogel: An optical sensor for pyrrole detection

Park, Sangwoo; Lee, Sang Yup

doi:10.1016/j.snb.2015.05.078

Cited by 23 publications

(19 citation statements)

References 22 publications

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“…The assembly of DPH molecules was driven by intermolecular forces that are affected by solvent polarity. With increasing non-polar solvent content, the DPH molecules are self-organized to form brous assemblies that are driven by both the hydrogen bonding 35 and the binding interactions between pyrrole rings that are driven by polarization and London dispersion forces. 40 Organogels are advantageous over solutions owing to the ease of manipulation and naked-eye sensing of uoride upon phase transfer from the gel to sol.…”

Section: Fluoride Sensing By the Dph Organogelmentioning

confidence: 99%

“…34 Exploiting the photosensitizing activity of DPH assemblies hybridized with ionic or organic chromophores, the optical sensing of target organic molecules were realized. 34,35 DPH could also form an organogel when self-assembled in select organic solvents such as a mixture of DMF and chloroform. The organogel contains a network of self-assembled nanobers containing a large amount of organic solvent.…”

Section: Introductionmentioning

confidence: 99%

“…The organogel contains a network of self-assembled nanobers containing a large amount of organic solvent. 35 This network structure can be disassembled by disturbing the molecular structure and potentially used for the development of a phase-transition material that can be activated by external stimuli.…”

Section: Introductionmentioning

confidence: 99%

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A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition

Park

Lee

et al. 2020

RSC Adv.

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Section: Fluoride Sensing By the Dph Organogelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition

Park

Lee

et al. 2020

RSC Adv.

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“… 41 − 43 Recently, the photophysical properties of the NCur as a sensing probe in optical sensors have received notable attention in chemistry of various fields. 44 − 46 …”

Section: Introductionmentioning

confidence: 99%

Facile Approach to Fabricate a Chemical Sensor Array Based on Nanocurcumin–Metal Ions Aggregates: Detection and Identification of DNA Nucleobases

Rasouli

Ghavami

2020

ACS Omega

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Here, a three-channel absorbance sensor array based on the nanocurcumin–metal ion (NCur–MI) aggregates is designed for the detection and identification of deoxyribonucleic acid nucleobases (DNA NBs) for the first time. For this purpose, the binding affinities of some of MIs (i.e., Co 2+ , Cr 3+ , Cu 2+ , Fe 2+ , Fe 3+ , Hg 2+ , Mn 2+ , Ni 2+ , V 3+ , and Zn 2+ ) to the NCur to induce the aggregation were evaluated under various experimental conditions. Further studies reveal that in the presence of DNA NBs, the aggregates of NCur–Co 2+ , NCur–Ni 2+ , and NCur–Zn 2+ show the diverse absorbance responses to the deaggregation of NCur depending on the binding affinity of each of DNA NBs to the metal ions Co 2+ , Ni 2+ , and Zn 2+ . These responses are distinguishable from one another. Thus, clear differentiation among the DNA NBs is achieved by linear discriminant analysis and hierarchical clustering analysis to generate clustering maps. The discriminatory capacity of the sensor array for the identification of the DNA NBs is tested in the ranges of 2.4–16 and 5.6–10.4 μM. Furthermore, a mixed set of the DNA NBs was prepared for multivariate multicomponent analysis. Finally, the practicability of the sensor array is confirmed by the discrimination of the DNA NBs in an animal DNA sample. It should be noted that the proposed array is the first example to fabricate an NCur-based sensor array for the simultaneous detection of DNA NBs.

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“…Bearing these aspects in mind and in continuation to our efforts in the area of metal-organic frameworks (MOFs) (Li et al, 2016; Liu et al, 2016c; Jin et al, 2017), which were aimed toward the syntheses of multifunctional MOFs we have chosen a flexible 1,4-bis(2-methyl-imidazol-1-yl)butane (bib) ligand (Hou et al, 2014a,b; Shi et al, 2014), and a rigid 1,3,5-benzenetricarboxylic acid (H 3 btc) ligand as well as d 10 transition-metal center (Cd 2+ ) to develop new structures with potential applications as luminescence sensor. The choice of using this strategy has been based on the following considerations (Marin et al, 2006; Kent et al, 2010; Saini and Das, 2012; Son et al, 2013; Banerjee et al, 2014; Li et al, 2014; Park and Lee, 2015; Wen et al, 2015; Park et al, 2016; Das and Mandal, 2018): (1) the binding capacity between bib ligand and metal centers not only induces flexible and diverse structures but also facilitates the surface functionalities of the materials; (2) rigid ligand btc with aromatic rings could effectively favor intra-ligand interactions and induce luminescent character. Herein, we are presenting a new Cd(II) MOF having formula[Cd 2 (btc)(bib)(HCOO)(H 2 O)·H 2 O] n ( 1 ) which have been utilized as dual photoluminescent sensor for the selective detection of nitroaromatics (NACs) especially TNP and ferric ions.…”

Section: Introductionmentioning

confidence: 99%

A New 3D 10-Connected Cd(II) Based MOF With Mixed Ligands: A Dual Photoluminescent Sensor for Nitroaroamatics and Ferric Ion

Wang

et al. 2019

Front. Chem.

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The precise unification of functional groups and photoluminescence properties can give rise to MOFs that can offer diverse applications like selective detection of nitroaromatic compounds (NACs) which are considered to be an important ingredient of explosive as well as cation and anion sensing. Hence, a new 3D metal-organic framework (MOF) [Cd 2 (btc)(bib)(HCOO)(H 2 O)·H 2 O] n ( 1 ) has been synthesized using mixed ligand strategy by solvothermal reaction of cadmium acetate with two ligands viz . 1,3,5-benzenetricarboxylic acid (H 3 btc) and 1,4-bis(2-methyl-imidazol-1-yl)butane (bib). The MOF 1 possesses highly 10-connected network which is based on {Cd 4 (btc) 2 (bib) 4 } molecular building block. The studies showed that 1 could be taken as the fluorescent sensor for sensitive recognition of NACs, in particular 2,4,6-trinitrophenol (TNP) with notable quenching ( K sv = 5.42 × 10 4 M −1 ) and LOD of 1.77 ppm. Additionally, 1 also displayed selective sensing for Fe 3+ ions with K sv = 6.05 × 10 3 M − 1 and LOD = 1.56 ppm. Also, this dual sensor displayed excellent reusability toward the detection of TNP and Fe 3+ ion. Theoretical calculations have been performed to propose the probable mechanism for the sensing luminescence intensity. Calculations indicated that because of the charge transfer and weak interaction that is operating between NACs and MOF, the weakening in the photoluminescence intensity resulted.

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Significant enhancement of curcumin photoluminescence by a photosensitizing organogel: An optical sensor for pyrrole detection

Cited by 23 publications

References 22 publications

A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition

A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition

Facile Approach to Fabricate a Chemical Sensor Array Based on Nanocurcumin–Metal Ions Aggregates: Detection and Identification of DNA Nucleobases

A New 3D 10-Connected Cd(II) Based MOF With Mixed Ligands: A Dual Photoluminescent Sensor for Nitroaroamatics and Ferric Ion

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