Fabrication of 2D nanosheet through self assembly behavior of sulfamethoxypyridazine inclusion complexes with α- and β-cyclodextrins

Rajendiran, N.; Venkatesh, G.; Mohandass, T.

doi:10.1016/j.saa.2013.12.053

Cited by 17 publications

(11 citation statements)

References 33 publications

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“…Later similar SA structures of CD nanotubes have also been reported by some other research groups [26][27][28][29][30][31][32][33]. Jaffer et al and Sowmiya et al found that trans-2-[4-(dimethylamino)styryl]benzothiazole (DMASBT) could induce the formation of CD nanotubes and their rodlike SA [26][27][28], although they suggested that the SA consisted of nanotubes filled with DMASBT only and no empty CD was involved [28].…”

Section: Introductionsupporting

confidence: 63%

“…The thickness of the nanosheets is about 30-40 nm, so it should be noted that the nanosheet is not a single layer but a bulk aggregation of nanotubes. In comparison, Rajendiran et al also fabricated nanosheets using a series of non-ionic drug molecules and CDs [30][31][32]. They also proposed the ''secondary self-assembly'' mechanism [32] while the shape of their nanosheets was irregular.…”

Section: Driving Forces For Self-assemblymentioning

confidence: 99%

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Secondary assembly mechanism of cyclodextrin based on LiNTf2@β-CD system

Shi

Shen

2016

J Incl Phenom Macrocycl Chem

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Cyclodextrin-based nanotubes have been widely investigated and their secondary assembly (SA) behavior was found in our previous works. Here we report the self-assembly behavior between lithium bis(trifluoromethylsulfonyl)imide (LiNTf 2 ) and b-cyclodextrin (b-CD). Nanosheet structures with regular shape were obtained in the concentrated LiNTf 2 @b-CD solution. This phenomenon can be explained in terms of the SA mechanism of CD induced by the inorganic guest LiNTf 2 . LiNTf 2 and b-CD firstly forms nanotubes, and the nanotubes further stack with each other to form nanosheets by SA. We confirm that the hydrogen-bonding interaction contributes a lot to the formation of the nanotubes and their SA, and Li ? shows a special effect in the SA by inducing hydrogenbonding network between the adjacent b-CD to regularly pack the nanotubes.

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Section: Introductionsupporting

confidence: 63%

Section: Driving Forces For Self-assemblymentioning

confidence: 99%

Secondary assembly mechanism of cyclodextrin based on LiNTf2@β-CD system

Shi

Shen

2016

J Incl Phenom Macrocycl Chem

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“…Both sulfa drugs exhibit similar absorption maxima; this is because tautomeric structure is present in both drug molecules [20][21][22][23][24][25]. With an increasing the concentration of SM and SMT, the absorption maximum of both sulfa drugs was completely lost whereas BSA and adenine absorbance was decreased at the same wavelength; i.e., in varying concentration of sulfa drugs, no remarkable spectral shift was noticed in BSA and adenine except a decrease in the intensity.…”

Section: Absorption Spectroscopic Studiesmentioning

confidence: 99%

“…This approach originally developed to illuminate the structure and the excited state behavior of organic molecules and drugs included in cyclodextrin macrocycles through experimental and theoretical [20][21][22][23][24][25][26] explorations. In the view of increasing attention directed toward the importance of investigating interaction between proteins and drugs, we present in this work utilizing UV-visible and fluorescence spectroscopy, cyclic voltammetry and molecular docking studies for investigating the interaction between SM/SMT with BSA/adenine.…”

Section: Introductionmentioning

confidence: 99%

Binding of Sulfamerazine and Sulfamethazine to Bovine Serum Albumin and Nitrogen Purine Base Adenine: A Comparative Study

Rajendiran

Thulasidhasan

2015

ILCPA

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ABSTRACT. Quenching of bovine serum albumin (BSA) and DNA base (adenine) by sulfamerazine (SM) and sulfamethazine (SMT) was studied using UV-visible, fluorescence cyclic voltammetry and molecular docking methods. A strong fluorescence quenching reaction of SM and SMT to BSA/adenine was observed and the quenching mechanism was suggested as static. Both drugs can bind to BSA and adenine with stoichiometric ratio of 1:1 and the protein -drug complexes are stabilized mainly by hydrogen bonds and van der Waals interaction. Compared to SM, SMT contributes substantially higher binding efficiency with BSA/adenine. With addition of drug solution to the adenine/BSA, the oxidation and the reduction peaks shifted towards high and low potentials, respectively. R o , J, r and E values in the BSA-drugs are higher than that of adeninedrug molecules suggest that binding of the sulfa drugs with BSA is higher than adenine -drug molecules. Docking method specify that bioactive site of sulfa drugs moiety, the aniline group is interacted with the BSA molecules.

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“…11,12 Calixarenes belong to the family of cage macrocycles, including besides them cyclodextrins, [13][14][15] cucurbiturils 16,17 and pillararenes. 18 All macrocycles of this family are useful in the field of supramolecular chemistry for formation of inclusion complexes 1,[19][20][21] and rotaxanes in which they serve as rings. [22][23][24][25] One should note also heteracalixarenes, i.e.…”

Section: Introductionmentioning

confidence: 99%