Poly (9-(2-diallylaminoethyl)adenine HCl-co-sulfur dioxide) deposited on silica nanoparticles constructs hierarchically ordered nanocapsules: Curcumin conjugated nanocapsules as a novel strategy to amplify guanine selectivity among nucleobases

Mouslmani, Mai; Bouhadir, Kamal H.; Patra, Digambara

doi:10.1016/j.bios.2014.12.036

Cited by 27 publications

(10 citation statements)

References 25 publications

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“…Curcumin is a fluorescent molecule; its photophysical properties are greatly reliant on the polarity of the environment and the pH of the medium (Priyadarsini, 2009). Curcumin has shown itself to be a good candidate for fluorescence probing (El Khoury & Patra, 2013;Patra, El Khoury, Ahmadieh, Darwish, & Tafech, 2012) and sensing (Mouslmani, Bouhadir, & Patra, 2015;Patra, Aridi, & Bouhadir, 2013) applications. The absorption maximum of curcumin is at 420 nm in the majority of polar solvents, yet in hydrogen bond acceptor and donor solvents, it is shifted to 430-434 nm, excluding methanol where it is around 423-428 nm (Chignell et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of curcumin in cyclodextrin-metal organic frameworks: Dissociation of loaded CD-MOFs enhances stability of curcumin

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Encapsulation of curcumin in cyclodextrin-metal organic frameworks: Dissociation of loaded CD-MOFs enhances stability of curcumin

et al. 2016

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“…Reports on curcumin as sensitizer are limited. Curcumin-derived dye can be used as a sensitizer in dye sensitized solar cells 21 and it has very exciting fluorescence properties as a probe 22 23 24 and sensing 25 26 molecule. Curcumin forms metal complex with various metal ions 27 28 29 .…”

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confidence: 99%

Nanoparticle Self-Assembled Grain Like Curcumin Conjugated ZnO: Curcumin Conjugation Enhances Removal of Perylene, Fluoranthene and Chrysene by ZnO

Moussawi

Patra

2016

Sci Rep

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Curcumin conjugated ZnO, referred as Zn(cur)O, nanostructures have been successfully synthesized, these sub-micro grain-like structures are actually self-assemblies of individual needle-shaped nanoparticles. The nanostructures as synthesized possess the wurtzite hexagonal crystal structure of ZnO and exhibit very good crystalline quality. FT-Raman and TGA analysis establish that Zn(cur)O is different from curcumin anchored ZnO (ZnO@cur), which is prepared by physically adsorbing curcumin on ZnO surfaces. Chemically Zn(cur)O is more stable than ZnO@cur. Diffuse reflectance spectroscopy indicates Zn(cur)O have more impurities compared to ZnO@cur. The solid-state photoluminescence of Zn(cur)O has been investigated, which demonstrates that increase of curcumin concentration in Zn(cur)O suppresses visible emission of ZnO prepared through the same method, this implies filling ZnO defects by curcumin. However, at excitation wavelength 425 nm the emission is dominated by fluorescence from curcumin. The study reveals that Zn(cur)O can remove to a far extent high concentrations of perylene, fluoranthene, and chrysene faster than ZnO. The removal depends on the extent of curcumin conjugation and is found to be faster for PAHs having smaller number of aromatic rings, particularly, it is exceptional for fluoranthene with 93% removal after 10 minutes in the present conditions. The high rate of removal is related to photo-degradation and a mechanism has been proposed.

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“…Besides the therapeutic activity of curcumin as anti‐oxidant, anti‐inflammatory and anti‐caners agent, curcumin was greatly used as a fluorescent probe in optical sensing targeting several analytes [36–38] . Curcumin associated polymeric nano‐system were found to be advantageous for improving analytical and sensing applications [39,40] . Though intrinsic fluorescence of probe molecule is not sensitive to many of the analytes of interest, careful modification of such probe molecules using nanotechnology can selectively target an analytical species and improve sensitivity of the analyte of interest.…”

Section: Introductionmentioning

confidence: 99%

Outstanding Enhancement of Curcumin Fluorescence in PDDA and Silica Nanoparticles Coated DMPC Liposomes Based Nanocapsules: Application for Selective Estimation of ATP**

2021

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Here we illustrate the synthesis of, 2-dimyristoyl-sn-glycero-3phosphocholine (DMPC) liposome based poly (dimethyldiallylammonium chloride) (PDDA) nanocapsule where PDDA and silica nanoparticles are coated on the surface of curcumin embedded liposomes. The prepared nanocapsule was analyzed using UV-vis spectroscopy, fluorescence spectroscopy, Dynamic Light Scattering technique, Scanning Electron Microscopy, Zeta-potential, Thermogravimetric analysis and Xray diffraction method. The fluorescence intensity of DMPC nanocapsules was found to be exceedingly, 60-fold, higher than free curcumin, thus, it boosts potential of such nanocapsules for various applications. The detection of Adinosine Triphosphate (ATP) was carried out by monitoring the change in the fluorescence emission of this DMPC nanocapsules while increasing the concentration of ATP molecule in the tested sample. Interestingly, fluorescence of free curcumin did not respond to ATP, whereas the fluorescence intensity of nanocapsules increased by the increase of ATP concentration, which establishes that materials prepared using nanotechnological modification of probe molecule can selectively target a particular analytical species. The nanocapsules based probe gave a linear correlation between the fluorescence intensity of DMPC nanocapsules in the concentration range 1 μM À 100 μM with the limit of detection equals to 0.5 μM. The described method is not interfered by uracil triphosphate, guanine triphosphate, cytosine triphosphate and thymine triphosphate molecules and showed good stability.

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Poly (9-(2-diallylaminoethyl)adenine HCl-co-sulfur dioxide) deposited on silica nanoparticles constructs hierarchically ordered nanocapsules: Curcumin conjugated nanocapsules as a novel strategy to amplify guanine selectivity among nucleobases

Cited by 27 publications

References 25 publications

Encapsulation of curcumin in cyclodextrin-metal organic frameworks: Dissociation of loaded CD-MOFs enhances stability of curcumin

Encapsulation of curcumin in cyclodextrin-metal organic frameworks: Dissociation of loaded CD-MOFs enhances stability of curcumin

Nanoparticle Self-Assembled Grain Like Curcumin Conjugated ZnO: Curcumin Conjugation Enhances Removal of Perylene, Fluoranthene and Chrysene by ZnO

Outstanding Enhancement of Curcumin Fluorescence in PDDA and Silica Nanoparticles Coated DMPC Liposomes Based Nanocapsules: Application for Selective Estimation of ATP**

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