Abstract In this work, we developed a green strategy for the fabrication of bio-based gelatin/dextrin semi-interpenetrating network (Gel-dex-cl-polyAAm) and carbon quantum dots (CQDs) nanocomposite (CQDs/Gel-dex-cl-polyAAm) for the detection of tannic acid and removal of eosin yellow dye present in water sample. The synthesis of semi-interpenetrating network (semi-IPN) was done under hot air reaction conditions using acrylamide and N,N′-methylenbisacrylamide monomer-crosslinker system. The maximum swelling response of the synthesized semi-IPN was found to be 597% after optimizing all the process parameters. The nanocomposite was derived through in-situ incursion of carbon quantum dots inside the crosslinked matrix of semi-IPN and it was capable of detecting the presence of tannic acid, selectively in wastewater through fluorescence quenching analysis. Maximum quenching efficiency was observed to be 98%. The synthesized devices were also found to be an effective absorbent for the removal of eosin yellow dye from contaminated water. Maximum dye removal potential in case of nanocomposite was found to be 92%. Adsorption isotherm and kinetics studies indicated the applicability of flory huggin's adsorption isotherm along with 2nd order kinetics. The industrial applicability of the samples was depicted from regeneration and reusability experimental essay.
#1Niladri Sarkar(VSSUT: Veer Surendra Sai University of Technology)H-Index: 9
#2Gyanaranjan Sahoo(VSSUT: Veer Surendra Sai University of Technology)H-Index: 8
Last. Sarat K. Swain(VSSUT: Veer Surendra Sai University of Technology)H-Index: 21
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Abstract Herein, nano-CaCO3 is utilized as exfoliating as well as pore forming agent to enhance the structural porosity of reduced graphene oxide based hybrid polyacrylamide (PAAm) hydrogel for the application of dye removal. The structural incorporation of microcrystalline chains (MCC) to the hydrogel structure is adopted to form stable interpenetrating polymer network, whereas; in situ reduction is performed onto the leached nanocomposite hydrogel to enhance the dye removal behavior for all dy...
#1Amit Kumar Sharma(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 9
#2Balbir Singh Kaith(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 37
Last. Bhuvanesh Gupta(IITs: Indian Institutes of Technology)H-Index: 35
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Abstract This paper introduces a novel approach for the fabrication of antibacterial silver nanocomposite scaffolds using the plant gum exudate of Boswellia serrate. The fabrication of the nanocomposites was done through the formation of semi-IPN (Bs-cl-polyAAm-Gm) and IPN (Bs-cl-polyAAm-IPN-AA-Gm) matrices under the impact of high energy γ-radiations. The γ-radiations induced in-situ reduction of Ag+ ions into Ag0 nanoparticles also limits the use of chemical reducing agents and adds novelty to...
#1Priya(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 7
#2Amit Kumar Sharma(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 9
Last. Isha(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 3
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Abstract We report here on the green synthesis method of hydrogel nanocomposite (Na-Ala/Chit-cl-polyAAm/CQDs) incorporated with carbon quantum dots for picric acid sensing and biebrich scharlet dye removal from industrial waste water. The nanocomposite precursor was derived from chitosan‑sodium alginate hybrid backbone and acrylamide monomer through the formation of semi-IPN matrix (Na-Ala/Chit-cl-polyAAm). The swelling percentage of semi-IPN can be controlled through process parameters such as ...
#1Amit Kumar Sharma(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 9
#2Priya(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 7
Last. Kajal Chandel(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 3
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Abstract The research work carried out involves synthesis of quinine derivatized hydrogel film (Q-gel film) based on dextrin and Polyvinyl alcohol hybrid mixture. The maximum percentage swelling obtained for the synthesized gel-film was 295% for 1.88 mole/L acrylamide concentration, 0.266 mole/L glutaradehyde concentration, 5.48× 10-2 mole/L ammonium persulphate concentration, 30 ml water at 70˚C after 4 h reaction time. It was converted to its quinine derivative using lipase enzyme based conden...
Abstract Cartilage is a semi-solid resilient and smooth elastic connective tissue and upon damage, its repair is almost impossible or occurs with a very slow recovery process. Polycaprolactone (PCL), used as a biocompatible polymer, withholds all required mechanical properties, except suitable cell adhesion due to its hydrophobicity. In order to resolve this issue, we sought to introduce appropriate semi-IPNs into the system to regain its hydrophilicity base on increasing of the hydrophilic poly...
#1Amit Kumar Sharma(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 9
#2Priya(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 7
Last. Vipula(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 3
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The research work performed and described here is in regard to synthesis of dextrin-sodium alginate based hybrid hydrogel film. It showed the maximized percentage swelling at 1145% after optimization of all reaction parameters. It was further functionalized with a fluorophore, i.e., riboflavin, to introduce luminescent behavior to the film. The RDSA film can not only remove but also sense the copper and nickel ions in the surroundings very sensitively up to 0.4445 μM and 0.2571 μM, respectively,...
Abstract In the present study, semi-interpenetrating polymer networks (semi-IPNs) were synthesized based on crosslinked acrylic acid (AA)/xanthan gum (XG) biopolymer in the presence of N, N′-hexane-1, 6-dilbisprop-2-enamide (MS) or 1,4-butandioldimethacrylate (BDOD) as the cross-linking agent. MS is a novel acrylic-urethane diene monomer prepared through the condensation reaction between AA and hexamethylene diisocyanate (HDI). Scanning electron microscopy (SEM), Fourier transform infrared (FT-I...
Last. Ali Salimi(BMSU: Baqiyatallah University of Medical Sciences)H-Index: 13
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Abstract Poly (2‑hydroxyethyl methacrylate) (PHEMA) was crosslinked in the presence of biocompatible and biodegradable poly(caprolactone) (PCL) based polyurethanes (PUs) and cellulose nanowhiskers (CNWs). The CNWs were obtained from wastepaper. In order to crosslink PHEMA (10 wt%), a novel acrylic-urethane cross-linker was produced by a condensation reaction of PHEMA and hexamethylene diisocyanate (HDI). The PU-PHEMA-CNWs scaffolds were prepared by solvent casting/particulate leaching method in ...
#1Kai Jiang(SCUT: South China University of Technology)H-Index: 4
#2Si-Hong Chen(SCNU: South China Normal University)H-Index: 5
Last. Zhao-Yang Wang(SCUT: South China University of Technology)H-Index: 20
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Abstract Under microwave assistance, 2,6-bis(benzimidazolyl)-pyridine has been concisely synthesized and further productively converted to the functional molecule BMBP via accessible N-alkylation reaction. For the introduction of alkoxyalkyl chain, this original substance BMBP with better solubility in water exhibits specific fluorescence response toward Zn 2+ from colourless to blue in aqueous solution. A sequential detection for picric acid (PA) can be conducted in this following system, showi...
#1Priya(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 7
#2Amit Kumar Sharma(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 9
Last. Sagar Panchal(NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 4
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Abstract The present work represents RSM-CCD (Response Surface Methodology integrated Central composite Design) optimized synthesis scheme of semi-IPN (semi interpenetrating network) NaAla-Gel-cl-polyAAm and ZnS nanocomposite adsorbent NaAla-Gel-cl-polyAAm/ZnS. Under optimized reaction parameters semi-IPN NaAla-Gel-cl-polyAAm showed maximum swelling percentage of 3191.73%. Maximum dye removal percentage (97.37%) was observed with ZnS nanocomposite for the removal of biebrich scarlet. The adsorpt...
Last. Dhiraj Sud(SLIET: Sant Longowal Institute of Engineering and Technology)H-Index: 19
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Hydrogels are composed of three dimensional structures with hydrated polymeric network. Nowadays, an exhaustive research has been carried out throughout the world related to the biomedical, pharmaceutical and environmental applications of hydrogels. Such materials possesses superabsorbent properties which can be controlled by varying the concentration, temperature, pH etc. of the external stimuli environment. In biomedical field, the super intelligent hydrogels have gained a significant interest...
Last. Aline Dettmer(UPF: Universidade de Passo Fundo)H-Index: 7
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Industrial activities generate considerable volumes of wastewater containing organic and inorganic contaminants. Adsorption is an efficient method for wastewater treatment due to its ease of operation, convenience, and efficiency. However, finding suitable adsorbent materials that are abundant, cheap, and efficient remains a challenge. Gelatin is considered a promising adsorbent due to its abundant surface of active groups, water solubility, non-toxicity, and biodegradability. Also, gelatin allo...