Preparation and characterisation of CoS2 nanomaterial in aqueous cationic surfactant medium of cetyltrimethylammonium bromide (CTAB)

Chakraborty, Indranil; Malik, Pradip K; Moulik, Satya P.

doi:10.1007/s11051-005-9032-y

Cited by 48 publications

(25 citation statements)

References 27 publications

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“…Herein, we have described micellar route of preparation of ZnS nanoparticles using SDS solution above critical micellar concentration (cmc) similar to the preparation of PbS in AOT [22], CoS 2 and CdS/HgS nanocomposites in CTAB micelles [23,24]. Micelle stabilized nanoparticle synthesis especially that of ZnS is rarely found in literature.…”

Section: Studies On Zns Nanoparticles Prepared In Aqueous Sodiummentioning

confidence: 99%

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Studies on ZnS Nanoparticles Prepared in Aqueous Sodium Dodecylsulphate (SDS) Micellar Medium

2005

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ZnS, a large band gap material, is useful in electro-luminescence and optoelectronic devices. We herein report a method for preparation of nanosized ZnS particles in micellar medium of anionic surfactant sodium dodecylsulphate. The optical properties of the prepared ZnS nanoparticles have been studied by absorption and fluorescence methods. Electron microscopic characterization has evidenced triangular particles, an uncommon observation in the synthesis of nanomaterials. PVC membrane containing nano ZnS dispersions has been prepared and its response as Zn 2+ ion-selective membrane has been reported.

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Section: Studies On Zns Nanoparticles Prepared In Aqueous Sodiummentioning

confidence: 99%

“…Sodium polyphosphate [19,20] and phosphotungstic acid [21] have been widely used as stabilizers of nano-dispersions in solution. We have utilized the aqueous micellar media of AOT [22] and CTAB [23,24] as stabilizers of nanoparticles in solution.…”

Section: Introductionmentioning

confidence: 99%

Studies on ZnS Nanoparticles Prepared in Aqueous Sodium Dodecylsulphate (SDS) Micellar Medium

2005

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“…These results also indicated that a novel DNA biosensor could be fabricated through one-step bioconjuction between sulfonyl group on pTSC film and modified amino group on probe DNA. Compared with the other DNA immobilization methods based on amino− carboxyl, 35 sulfonic−amino, 36 or amino−aldehyde condensations, 37 neither preactivating reagents, such as 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC), N-hydroxysuccinimide (NHS), and phosphorus chloride (PCl 5 ), nor cross-linkers like glutaraldehyde was needed, suggesting that the method presented in this work was more convenient and inexpensive.…”

Section: Characterization On the Biosensor Fabricationmentioning

confidence: 99%

Construction of a Novel Colitoxin DNA Biosensor Based on Cross-Linker-Free Fixation of Probe Fragments on the Interface of Rugby-Ball-Shaped CoS₂ Submicroparticles and Poly(2-thiophenesulfonyl chloride) Composite Film

Chen

Wang

et al. 2015

Ind. Eng. Chem. Res.

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Rugby-ball-shaped CoS 2 (rCoS 2 ) submicroparticles have been synthesized via a simple hydrothermal reaction. The rCoS 2 submicroparticles were then casted on a glassy carbon electrode and served as a highly conductive and large surface area platform for the electrosynthesis of poly(2-thiophenesulfonyl chloride) (pTSC), using 2-thiophenesulfonyl chloride as the monomer. The stepwise modification process was characterized by attenuated total reflectance−Fourier transform infrared spectroscopy (ATR-FTIR) and different electrochemical technologies. The stable pTSC layer was utilized as a functional interface to immobilize amino-modified probe DNA via a facile sulfonyl−amino condensation reaction, without the assistance of any other cross-linkers. Because of the synergistic effect of rCoS 2 and pTSC from the hybrid material, the developed DNA biosensor could detect target DNA over a wide dynamic range, from 1.0 × 10 −13 to 1.0 × 10 −7 M, with the detection limit down to 1.1 × 10 −14 M. Benefiting from the steady electropolymerization film of pTSC and the stable sulfamide bond between the amino-modified DNA and pTSC, the biosensor also showed high stability, reusability, and reproducibility.

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“…The average molecular weight of guar gum changes from 1 to 2 million (Cheng et al 2002). Guar gum is used as a depressant for hydrophobic gangue minerals in flotation of nickel and platinum bearing ores (Wang et al 2005) or as a blinder of water-insoluble slimes in potash flotation (Wiśniewska et al 2012a (Chakraborty et al 2006). T-octylphenoxypolyethoxyethanol known as Triton X-100 (TX-100) (C 8 H 17 C 6 H 4 (OCH 2 CH 2 ) n x OH; n * 9.5) was used as a nonanionic surfactant in the presented measurements.…”

Section: Introductionmentioning

confidence: 99%

Stability of manganese dioxide by guar gum in the absence or presence of surfactants

Grządka

2014

Cellulose

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Stability of the manganese dioxide (MnO 2 ) suspensions by non-ionic guar gum (GG) in the absence or presence of the surfactants: anionic sodium dodecyl sulphate (SDS), cationic hexadecyltrimethylammonium bromide (CTAB) and non-ionic Triton X-100 (t-octylphenoxypolyethoxyethanol) and their equimolar mixtures (SDS/TX-100; CTAB/TX-100) was measured using turbidity. The obtained results of the manganese dioxide suspensions stability were discussed together with the adsorption data and with the data concerning the thicknesses of the adsorption layers. In order to gain more information about the structure of the electric double layer surface charge density and the zeta potential measurements were performed. The obtained results show that the addition of guar gum to the MnO 2 suspensions increases MnO 2 stability. The larger this increase is, the higher is the concentration of the polymer (concentration range 10-200 ppm). Moreover, the addition of single surfactants also causes the increase in the effectiveness of stabilizing the manganese dioxide suspensions. The reason for that is formation of multilayer complexes between the polymer and the surfactants. In such a system both the adsorption of polymer and the thickness of polymer adsorption layer increase. The greatest increase in the stability of MnO 2 /GG suspensions was provided by the mixture of anionic and nonionic surfactants due to a strong synergistic effect. Also, mixing the polymer and two surfactants reduces the stability of the suspension.

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Preparation and characterisation of CoS2 nanomaterial in aqueous cationic surfactant medium of cetyltrimethylammonium bromide (CTAB)

Cited by 48 publications

References 27 publications

Studies on ZnS Nanoparticles Prepared in Aqueous Sodium Dodecylsulphate (SDS) Micellar Medium

Studies on ZnS Nanoparticles Prepared in Aqueous Sodium Dodecylsulphate (SDS) Micellar Medium

Construction of a Novel Colitoxin DNA Biosensor Based on Cross-Linker-Free Fixation of Probe Fragments on the Interface of Rugby-Ball-Shaped CoS₂ Submicroparticles and Poly(2-thiophenesulfonyl chloride) Composite Film

Stability of manganese dioxide by guar gum in the absence or presence of surfactants

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Preparation and characterisation of CoS2 nanomaterial in aqueous cationic surfactant medium of cetyltrimethylammonium bromide (CTAB)

Cited by 48 publications

References 27 publications

Studies on ZnS Nanoparticles Prepared in Aqueous Sodium Dodecylsulphate (SDS) Micellar Medium

Studies on ZnS Nanoparticles Prepared in Aqueous Sodium Dodecylsulphate (SDS) Micellar Medium

Construction of a Novel Colitoxin DNA Biosensor Based on Cross-Linker-Free Fixation of Probe Fragments on the Interface of Rugby-Ball-Shaped CoS2 Submicroparticles and Poly(2-thiophenesulfonyl chloride) Composite Film

Stability of manganese dioxide by guar gum in the absence or presence of surfactants

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Product

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Construction of a Novel Colitoxin DNA Biosensor Based on Cross-Linker-Free Fixation of Probe Fragments on the Interface of Rugby-Ball-Shaped CoS₂ Submicroparticles and Poly(2-thiophenesulfonyl chloride) Composite Film