An Interaction Study of Chloro and Alkyl Substituted Benzylamine with DPPH● through UV Spectrophotometric and Physicochemical Methods at T = (298.15, 303.15 and 308.15) K

Ameta, Rakesh Kumar; Singh, Man; Kitawat, Bheru Singh

doi:10.4236/msce.2014.21008

Cited by 3 publications

(4 citation statements)

References 23 publications

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“…NCNDs showed significantly higher antioxidant ability (88% efficiency) when compared to carbon dots without an amine-rich shell or when coated with carboxylic groups (5% and 55% efficiency, respectively, for Arg-CDs and Cit-CDs, Figure S9). This activity, therefore, was ascribed to the presence of primary amino terminations, similar to previously reported (benzyl)amines, with the hydrogen-donating ability able to stabilize the free radicals . Next, we investigated the radical scavenging efficiency of our systems and focused, in particular, on the most fluorescent p -C 12 /[NTf 2 ]-NCND 0.1 ionogel, since an interesting relation between FLQY and radical scavenger efficiency has been recently reported for carbon dots solutions …”

Section: Resultssupporting

confidence: 61%

“…This activity, therefore, was ascribed to the presence of primary amino terminations, similar to previously reported (benzyl)amines, with the hydrogen-donating ability able to stabilize the free radicals. 79 Next, we investigated the radical scavenging efficiency of our systems and focused, in particular, on the most fluorescent p-C 12 /[NTf 2 ]-NCND 0.1 ionogel, since an interesting relation between FLQY and radical scavenger efficiency has been recently reported for carbon dots solutions. 21 The efficiency of the gel was notably high (88%) after only 5 min of contact between the radical solution and the gel, while it reached the maximum value by achieving 100% of efficiency after 1 h (Table S3).…”

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confidence: 99%

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Nitrogen-Doped Carbon Nanodots-Ionogels: Preparation, Characterization, and Radical Scavenging Activity

et al. 2018

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Hybrid diimidazolium-based ionogels were obtained by dispersing nitrogen-doped carbon nanodots (NCNDs) in ionic liquid (IL) solutions and by using dicationic organic salts as gelators. The properties of the NCND-ionogels were studied in terms of thermal stability, mechanical strength, morphology, rheological, and microscopic analyses. Insights into the formation of the hybrid soft material were attained from kinetics of sol-gel phase transition and from estimating the size of the aggregates, obtained from opacity and resonance light-scattering measurements. We demonstrate that, on one hand, NCNDs were able to favor the gel formation both in the presence of gelating and nongelating ILs. On the other hand, the gelatinous matrix retains and, in some cases, improves the properties of NCNDs. The NCND-ionogels showed the typical fluorescence emission of the carbon dots and a notable antiradical activity, with higher efficiency as compared to the single components. The presented hybrid materials hold great promise for topical applications in antioxidant fields.

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Section: Resultssupporting

confidence: 61%

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confidence: 99%

Nitrogen-Doped Carbon Nanodots-Ionogels: Preparation, Characterization, and Radical Scavenging Activity

et al. 2018

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“…Antioxidant or scavenging activities were determined on the basis of a free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging effect [18, 19, 20, 21, 22, 23, 24, 25]. Stock solution of DPPH (0.002%) was prepared with DMSO.…”

Section: Methodsmentioning

confidence: 99%

Co(III) based surfactant complexes and their Dye, BSA and free radical activities

Ameta

Singh

2019

Heliyon

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Study reports the preparation of metal/surfactant complexes or Metal Organic Ionic Framework (MOIF) based on ionic interaction of [Co(NH 3 ) 6 ] 3+ and Dioctyl sulfosuccinate (AOT)/Sodium dodecyl sulfate (SDS). MOIF is result of strong ionic interaction between cationic and anionic moieties without disturbing their own structures. MOIF of [Co(NH 3 ) 6 ] 3+ and SDS was found in solid powdery form while [Co(NH 3 ) 6 ] 3+ + AOT produced sticky material. UV/Vis, FTIR, Raman and XRD measurements were used to characterize the MOIFs. The ionic interaction between cationic complex [Co(NH 3 ) 6 ] 3+ and anionic sulphur of AOT/SDS was confirmed by comparing spectra with their parental moieties. MOIF containing hydrophilic and hydrophobic groups showed their dye interaction activity studied with methyl orange (MO) and methylene blue (MB) depicting impact of linear and iso-alkyl chain ánd hydrophilic amine groups. MOIF showed their protein binding nature, studied with bovine serum albumin (BSA), analyzed with spectrophotometric titrations revealing that hydrophobicity affects the interaction. In Dye and protein interactions, MOIF of [Co(NH 3 ) 6 ] 3+ + AOT showed strong activities than MOIF of [Co(NH 3 ) 6 ] 3+ + SDS due to more hydrophobicity associated with MOIF of [Co(NH 3 ) 6 ] 3+ + AOT. MOIFs have also shown good scavenging effect tested in vitro against free radical, 2,2-diphenyl-1-picrylhydrazyl (DPPH), and the same, strong interaction for MOIF of [Co(NH 3 ) 6 ] 3+ + AOT noticed.

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“…Therefore to overcome all these difficulties and to initiate new synergistic science of functional molecules, the Oscosurvismeter has been evolved which has been a great scientific vital tool to record the said physicochemical synergy of functional molecules together. The oscosurvismeter together measures osmotic pressures, conductance, surface energy, viscosity, pH., and isoelectric and isoionic points, to develop interdependence and to sort out degree of freedom [4][5][6][7][8][9][10][11][12]. …”

Section: Introductionmentioning

confidence: 99%

Physicochemical Synergetics of Liquid Mixtures of Functional Molecules: Oscosurvismeter and Survismeter

Singh¹,

Singh²,

Srivastava³

2017

dtetr

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Abstract. Currently functional materials like ionic liquids, dendrimers, surfactants, biopolymers, polymer blends, nanocomposites, supramolecules, drugs, dyes and others of industrial interest and need integrated physicochemical characterizations due to unavoidable several chemical processes like redox, UV light absorption resulting degradation. The physicochemical properties measuring techniques play significant role in deciding applications and understanding structural stability of the needed materials. Thus the search, research and inventions being made in areas of physicochemical sciences are of utmost importance. Thus, the survismeter and oscosurvismeter, the new breakthroughs for integrated physicochemical properties of functional molecules have been emerged as the most usable and answerable, reliable, authentic research methodologies.

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An Interaction Study of Chloro and Alkyl Substituted Benzylamine with DPPH● through UV Spectrophotometric and Physicochemical Methods at T = (298.15, 303.15 and 308.15) K

Cited by 3 publications

References 23 publications

Nitrogen-Doped Carbon Nanodots-Ionogels: Preparation, Characterization, and Radical Scavenging Activity

Nitrogen-Doped Carbon Nanodots-Ionogels: Preparation, Characterization, and Radical Scavenging Activity

Co(III) based surfactant complexes and their Dye, BSA and free radical activities

Physicochemical Synergetics of Liquid Mixtures of Functional Molecules: Oscosurvismeter and Survismeter

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