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Kim Y, Patel R, Kulkarni CV, Patel M. Graphene-Based Aerogels for Biomedical Application. Gels 2023; 9:967. [PMID: 38131953 PMCID: PMC10743039 DOI: 10.3390/gels9120967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Aerogels are three-dimensional solid networks with incredibly low densities, high porosity, and large specific surface areas. These aerogels have both nanoscale and macroscopic interior structures. Combined with graphene, the aerogels show improved mechanical strength, electrical conductivity, surface area, and adsorption capacity, making them ideal for various biomedical applications. The graphene aerogel has a high drug-loading capacity due to its large surface area, and the porous structure enables controlled drug release over time. The presence of graphene makes it a suitable material for wound dressings, blood coagulation, and bilirubin adsorption. Additionally, graphene's conductivity can help in the electrical stimulation of cells for improved tissue regeneration, and it is also appropriate for biosensors. In this review, we discuss the preparation and advantages of graphene-based aerogels in wound dressings, drug delivery systems, bone regeneration, and biosensors.
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Affiliation(s)
- Yeongsang Kim
- Bio-Convergence, Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University, 85 Songdogwahak-ro, Yeonsugu, Incheon 21938, Republic of Korea
| | - Rajkumar Patel
- Energy & Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University, 85 Songdogwahak-ro, Yeonsugu, Incheon 21938, Republic of Korea;
| | - Chandrashekhar V. Kulkarni
- Centre for Smart Materials, School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, UK;
| | - Madhumita Patel
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
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Kaushik J, Sharma C, Lamba NK, Sharma P, Das GS, Tripathi KM, Joshi RK, Sonkar SK. 3D Porous MoS 2-Decorated Reduced Graphene Oxide Aerogel as a Heterogeneous Catalyst for Reductive Transformation Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12865-12877. [PMID: 37639338 DOI: 10.1021/acs.langmuir.3c01785] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
The MoS2-based reduced graphene oxide aerogel (MoS2-rGOA)-assisted organic transformation reactions are presented. MoS2-rGOA is used as a heterogeneous catalyst for the reduction of benzene derivatives such as benzaldehyde, nitrobenzene, and benzonitrile to benzyl alcohol, aniline, and benzamide and their derivatives, respectively, in green solvents (water/methanol) and green reducing agents (hydrazine hydrate having N2 and H2 as byproducts). The mechanistic features of the reduction pathway, substrate scope, and the best suitable conditions by varying the temperature, solvent, reducing agent, catalyst loading, time, etc. are optimized. All of the synthesized products are obtained in quantitative yield with purity and well characterized based on nuclear magnetic resonance analysis. Further, it is also observed that our catalyst is efficiently recyclable and works well checked up to 5 cycles.
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Affiliation(s)
- Jaidev Kaushik
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Charu Sharma
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Nicky Kumar Lamba
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Purshotam Sharma
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Gouri Sankar Das
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam 530003, Andhra Pradesh, India
| | - Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam 530003, Andhra Pradesh, India
| | - Raj Kumar Joshi
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
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Xie H, Wang Y, Wang P, Liu S, Ye Q, Liu W. Poly(tannic acid)-functionalized onion-like carbon nanoparticles derived from candle soot serving as potent lubricant additives. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Yin M, Jiang H, Shi L, Zhang D, He Z, Luo Y, Pan B. Air-enclosed pores in graphene aerogel inhibit the adsorption of bisphenol A but accelerate the adsorption of naphthalene. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 259:114989. [PMID: 37178614 DOI: 10.1016/j.ecoenv.2023.114989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/24/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
Graphene hydrogel (GH) and aerogel (GA) have great application potential as highly effective adsorbents, but the accessibility of their adsorption sites have not yet been identified, restricting our understanding on the adsorption mechanisms and manufacturing. This study comparatively studied the adsorption characteristics of bisphenol A (BPA) and naphthalene (NAP) on GH and GA, focussing on the accessibility of the adsorption sites. The adsorption of BPA on GA was much lower but faster than that on GH. NAP adsorption on GA was very close to that on GH but faster than that on the latter. Considering that NAP is volatilisable, we speculate that some unwetted sites in the air-enclosed pores are available to it, but not to BPA. We applied ultrasonic and vacuum treatments to remove the air in GA pores, which was verified using a CO2 replacement experiment. BPA adsorption was greatly enhanced but slowed, while that of NAP was not enhanced. This phenomenon suggested that some inner pores became accessible in the aqueous phase after air removal from pores. The enhanced accessibility of air-enclosed pores was verified by the increased relaxation rate of surface-bounded water on GA, based on a 1H NMR relaxation analysis. This study highlights that the accessibility of adsorption site plays a crucial role for the adsorption properties of carbon-based aerogel. The volatile chemicals may be quickly adsorbed in the air-enclosed pores, which be useful for immobilizing volatile contaminants.
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Affiliation(s)
- Mengnan Yin
- Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi 276005, China; Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Hui Jiang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China
| | - Lin Shi
- Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi 276005, China
| | - Di Zhang
- Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi 276005, China.
| | - Zhaohui He
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yong Luo
- Yunnan Maochen Engineering Consulting Co. LTD, Kunming 650301, China
| | - Bo Pan
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
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Bakhori NM, Ismail Z, Hassan MZ, Dolah R. Emerging Trends in Nanotechnology: Aerogel-Based Materials for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1063. [PMID: 36985957 PMCID: PMC10058649 DOI: 10.3390/nano13061063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
At present, aerogel is one of the most interesting materials globally. The network of aerogel consists of pores with nanometer widths, which leads to a variety of functional properties and broad applications. Aerogel is categorized as inorganic, organic, carbon, and biopolymers, and can be modified by the addition of advanced materials and nanofillers. Herein, this review critically discusses the basic preparation of aerogel from the sol-gel reaction with derivation and modification of a standard method to produce various aerogels for diverse functionalities. In addition, the biocompatibility of various types of aerogels were elaborated. Then, biomedical applications of aerogel were focused on this review as a drug delivery carrier, wound healing agent, antioxidant, anti-toxicity, bone regenerative, cartilage tissue activities and in dental fields. The clinical status of aerogel in the biomedical sector is shown to be similarly far from adequate. Moreover, due to their remarkable properties, aerogels are found to be preferably used as tissue scaffolds and drug delivery systems. The advanced studies in areas including self-healing, additive manufacturing (AM) technology, toxicity, and fluorescent-based aerogel are crucially important and are further addressed.
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Affiliation(s)
- Noremylia Mohd Bakhori
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
| | - Zarini Ismail
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
| | - Mohamad Zaki Hassan
- Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Selangor, Malaysia
| | - Rozzeta Dolah
- Department of Chemical Engineering, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Selangor, Malaysia
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Avîrvarei AC, Salanță LC, Pop CR, Mudura E, Pasqualone A, Anjos O, Barboza N, Usaga J, Dărab CP, Burja-Udrea C, Zhao H, Fărcaș AC, Coldea TE. Fruit-Based Fermented Beverages: Contamination Sources and Emerging Technologies Applied to Assure Their Safety. Foods 2023; 12:foods12040838. [PMID: 36832913 PMCID: PMC9957501 DOI: 10.3390/foods12040838] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/26/2023] [Accepted: 02/07/2023] [Indexed: 02/18/2023] Open
Abstract
The food and beverage market has become broader due to globalization and consumer claims. Under the umbrella of consumer demands, legislation, nutritional status, and sustainability, the importance of food and beverage safety must be decisive. A significant sector of food production is related to ensuring fruit and vegetable conservation and utilization through fermentation. In this respect, in this review, we critically analyzed the scientific literature regarding the presence of chemical, microbiological and physical hazards in fruit-based fermented beverages. Furthermore, the potential formation of toxic compounds during processing is also discussed. In managing the risks, biological, physical, and chemical techniques can reduce or eliminate any contaminant from fruit-based fermented beverages. Some of these techniques belong to the technological flow of obtaining the beverages (i.e., mycotoxins bound by microorganisms used in fermentation) or are explicitly applied for a specific risk reduction (i.e., mycotoxin oxidation by ozone). Providing manufacturers with information on potential hazards that could jeopardize the safety of fermented fruit-based drinks and strategies to lower or eliminate these hazards is of paramount importance.
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Affiliation(s)
- Alexandra Costina Avîrvarei
- Department of Food Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Liana Claudia Salanță
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Centre for Technology Transfer-BioTech, 64 Calea Florești, 400509 Cluj-Napoca, Romania
| | - Carmen Rodica Pop
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Centre for Technology Transfer-BioTech, 64 Calea Florești, 400509 Cluj-Napoca, Romania
| | - Elena Mudura
- Department of Food Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
- Centre for Technology Transfer-BioTech, 64 Calea Florești, 400509 Cluj-Napoca, Romania
| | - Antonella Pasqualone
- Department of Soil, Plant and Food Science (DISSPA), University of Bari Aldo Moro, I-70126 Bari, Italy
| | - Ofelia Anjos
- Instituto Politécnico de Castelo Branco, 6001-909 Castelo Branco, Portugal
- Forest Research Centre, School of Agriculture, University of Lisbon, 1349-017 Lisbon, Portugal
- Spectroscopy and Chromatography Laboratory, CBP-BI-Centro de Biotecnologia de Plantas da Beira Interior, 6001-909 Castelo Branco, Portugal
| | - Natalia Barboza
- Food Technology Department, University of Costa Rica, Ciudad Universitaria Rodrigo Facio, San Jośe 11501-2060, Costa Rica
- National Center of Food Science and Technology (CITA), University of Costa Rica, Ciudad Universitaria Rodrigo Facio, San Jośe 11501-2060, Costa Rica
| | - Jessie Usaga
- National Center of Food Science and Technology (CITA), University of Costa Rica, Ciudad Universitaria Rodrigo Facio, San Jośe 11501-2060, Costa Rica
| | - Cosmin Pompei Dărab
- Faculty of Electrical Engineering, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania
| | - Cristina Burja-Udrea
- Industrial Engineering and Management Department, Faculty of Engineering, Lucian Blaga University of Sibiu, 550024 Sibiu, Romania
| | - Haifeng Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Research Institute for Food Nutrition and Human Health, Guangzhou 510640, China
| | - Anca Corina Fărcaș
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Centre for Technology Transfer-BioTech, 64 Calea Florești, 400509 Cluj-Napoca, Romania
| | - Teodora Emilia Coldea
- Department of Food Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
- Centre for Technology Transfer-BioTech, 64 Calea Florești, 400509 Cluj-Napoca, Romania
- Correspondence:
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Kumari P, Tripathi KM, Awasthi K, Gupta R. Sustainable carbon nano-onions as an adsorbent for the efficient removal of oxo-anions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:15480-15489. [PMID: 36169824 DOI: 10.1007/s11356-022-22883-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/31/2022] [Indexed: 06/16/2023]
Abstract
The increasing threats of oxo-anions in drinking water have posed a serious threat to human health, aquatic environment, ecology, and sustainability. Accordingly, developments of cost-effective and sustainable nanomaterials for water remediation are on top priority and highly sought in global research community. Carbon nano-onions (CNOs) are one of the emerging nanomaterials for water purification because of its unique morphology, surface reactivity, high density of surface-active sites, and microporous structure. Herein, flaxseed oil-derived CNOs are utilized as efficient adsorbent for the removal of toxic oxo-anions. Aside from the green and economic nature, CNOs provide high adsorption efficiency ~ 806.45 mg g-1 for the removal of [Formula: see text] (99.9%) from aqueous system at ambient temperature, neutral pH in 70 min. The adsorption of [Formula: see text] onto CNOs was well fitted in pseudo-second order kinetics and followed the Langmuir adsorption isotherm model. The adsorption process was determined to be exothermic and spontaneous from the resulting thermodynamic characteristics. Furthermore, the high hydrophobic nature of CNOs make it recycling simpler. The real-life applicability of CNOs towards [Formula: see text] removal was tested in tap water, river water, and dam water. With all these observed results, CNOs show promise for practical water remediation applications.
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Affiliation(s)
- Poonam Kumari
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India
| | - Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Vishakhapatnam, Andhra Pradesh, 530003, India
| | - Kamlendra Awasthi
- Department of Physics, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India.
- Materials Research Centre, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India.
| | - Ragini Gupta
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India
- Materials Research Centre, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India
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8
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Mondal AK, Xu D, Wu S, Zou Q, Lin W, Huang F, Ni Y. High lignin containing hydrogels with excellent conducting, self-healing, antibacterial, dye adsorbing, sensing, moist-induced power generating and supercapacitance properties. Int J Biol Macromol 2022; 207:48-61. [PMID: 35247419 DOI: 10.1016/j.ijbiomac.2022.02.144] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/11/2022] [Accepted: 02/24/2022] [Indexed: 12/11/2022]
Abstract
Herein, we design a dynamic redox system of using high contents of lignosulfonate (LS) and Al3+ to prepare poly acrylic acid (PAA) (LS-g-PAA-Al) hydrogels. The presence of high LS and Al3+ contents, in combination with the effective Al3+ complexes formed, renders the resultant hydrogel with some unique attributes, including excellent ionic conductivity (as high as 7.38 S·m-1) and antibacterial activity; furthermore, a very fast gelation (in 1 min) was obtained. As a flexible strain sensor, the LS-g-PAA-Al hydrogel with high conductivity demonstrates superior sensitivity in human movement detection. In addition, the rich anionic hydrophilic groups, such as sulfonic groups, phenolic hydroxyl groups, in the hydrogels impart the resultant hydrogels with excellent adsorption capacity for cationic dyes: when using Rhodamine B (RB) as a model cationic dye, the adsorption capacity of the resultant hydrogel reaches 334.64 mg·g-1; as a moist-induced power generator, it generates maximum 150.5 mV open circuit voltage with moist air flow. When the hydrogel electrolyte is assembled into a supercapacitor assembly, it shows high specific capacitance of 245.4 F·g-1, with the maximum energy density of 21.8 Wh·kg-1, power density of 2.37 kW·kg-1, and capacitance retention of 95.1% after 5000 consecutive charge-discharge cycles.
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Affiliation(s)
- Ajoy Kanti Mondal
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; Institute of Fuel Research and Development, Bangladesh Council of Scientific and Industrial Research, Dhaka 1205, Bangladesh
| | - Dezhong Xu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China
| | - Shuai Wu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China
| | - Qiuxia Zou
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China
| | - Weijie Lin
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China
| | - Fang Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China.
| | - Yonghao Ni
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; Department of Chemical Engineering, University of New Brunswick, Fredericton E3B 5A3, Canada.
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9
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Du H, Zhang J, Wang S, Manyande A, Wang J. Effect of high-intensity ultrasonic treatment on the physicochemical, structural, rheological, behavioral, and foaming properties of pumpkin (Cucurbita moschata Duch.)-seed protein isolates. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112952] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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Kaushik J, Kumar V, Tripathi KM, Sonkar SK. Sunlight-promoted photodegradation of Congo red by cadmium-sulfide decorated graphene aerogel. CHEMOSPHERE 2022; 287:132225. [PMID: 34547561 DOI: 10.1016/j.chemosphere.2021.132225] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Herein, a simpler-viable methodology for the surface decoration of pear fruit derived graphene aerogel (GA) via cadmium sulfide (CdS) has been presented. GA can be easily synthesized from bio-mass, which provide an economic advantage. Surface decoration via CdS imparts photocatalytic activities in functionalized graphene aerogels (f-GA). CdS-f-GA is being explored here as a photocatalyst for the degradation of a toxic azo dye named Congo red in the presence of sunlight. The rate and mechanism associated with photodegradation were analyzed by performing kinetics and radical trap-based quenching experiments. Nuclear magnetic resonance and fourier transform infrared spectroscopy analyses of the control and photodegraded products were performed to ensure the degradation of the organic framework of Congo red. Additionally, the real-life applicability of CdS-f-GA was also analyzed by degrading the dye in different types of industrial samples (via the method of external spiking), which can advance its practical relevance.
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Affiliation(s)
- Jaidev Kaushik
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur, 302017, India
| | - Vishrant Kumar
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal, 462066, Madhya Pradesh, India
| | - Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam, 530003, Andhra Pradesh, India.
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur, 302017, India.
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11
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Wei F, Zhang H, Ren Q, Chen H, Yang L, Ding B, Yu M, Liang Z. Removal of organic contaminants from wastewater with GO/MOFs composites. PLoS One 2021; 16:e0253500. [PMID: 34237066 PMCID: PMC8266086 DOI: 10.1371/journal.pone.0253500] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/04/2021] [Indexed: 11/25/2022] Open
Abstract
Graphene oxide/metal-organic frameworks (GO/MOFs) have been prepared via solvothermal synthesis with ferrous sulfate heptahydrate, zirconium acetate and terephthalic acid for the purpose of removing organic pollutants from wastewater. The composites were analyzed using scanning electron microscopy, infrared spectrometry, and XRD. Tetracycline hydrochloride and orange II were implemented as model pollutants to evaluate the efficacy of the GO/MOFs in water purification, in which 50 mg of Zr/Fe-MOFs/GO was mixed with 100 mL of 10 mg/L, 20 mg/L, 30 mg/L, or 50 mg/L tetracycline hydrochloride solution and 25 mg/L, 35 mg/L, 45 mg/L, or 60 mg/L orange II solution, respectively. The removal efficacy after 4 hours was determined to be 96.1%, 75.8%, 55.4%, and 30.1%, and 98.8%, 91.9%, 71.1%, and 66.2%, respectively. The kinetics of pollutant removal was investigated for both tetracycline hydrochloride and orange II and excellent correlation coefficients of greater than 0.99 were obtained. The high efficacy of these MOFs in pollutant removal, coupled with their inexpensive preparation indicates the feasibility of their implementation in strategies for treating waste liquid. As such, it is anticipated that Zr/Fe-MOFs/GO composites will be widely applied in wastewater purification.
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Affiliation(s)
- Fuhua Wei
- College of chemistry and chemical Engineering, Anshun University, Anshun, PR China
| | - Huan Zhang
- College of chemistry and chemical Engineering, Anshun University, Anshun, PR China
| | - Qinhui Ren
- College of chemistry and chemical Engineering, Anshun University, Anshun, PR China
| | - Hongliang Chen
- College of chemistry and chemical Engineering, Anshun University, Anshun, PR China
| | - Lili Yang
- College of chemistry and chemical Engineering, Anshun University, Anshun, PR China
| | - Bo Ding
- College of chemistry and chemical Engineering, Anshun University, Anshun, PR China
| | - Mengjie Yu
- College of chemistry and chemical Engineering, Anshun University, Anshun, PR China
| | - Zhao Liang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha City, P.R. China
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Androulidakis C, Kotsidi M, Gorgolis G, Pavlou C, Sygellou L, Paterakis G, Koutroumanis N, Galiotis C. Multi-functional 2D hybrid aerogels for gas absorption applications. Sci Rep 2021; 11:13548. [PMID: 34193924 PMCID: PMC8245581 DOI: 10.1038/s41598-021-92957-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/28/2021] [Indexed: 02/06/2023] Open
Abstract
Aerogels have attracted significant attention recently due to their ultra-light weight porous structure, mechanical robustness, high electrical conductivity, facile scalability and their use as gas and oil absorbers. Herein, we examine the multi-functional properties of hybrid aerogels consisting of reduced graphene oxide (rGO) integrated with hexagonal boron nitride (hBN) platelets. Using a freeze-drying approach, hybrid aerogels are fabricated by simple mixing with various volume fractions of hBN and rGO up to 0.5/0.5 ratio. The fabrication method is simple, cost effective, scalable and can be extended to other 2D materials combinations. The hybrid rGO/hBN aerogels (HAs) are mechanically robust and highly compressible with mechanical properties similar to those of the pure rGO aerogel. We show that the presence of hBN in the HAs enhances the gas absorption capacities of formaldehyde and water vapour up to ~ 7 and > 8 times, respectively, as compared to pure rGO aerogel. Moreover, the samples show good recoverability, making them highly efficient materials for gas absorption applications and for the protection of artefacts such as paintings in storage facilities. Finally, even in the presence of large quantity of insulating hBN, the HAs are electrically conductive, extending the potential application spectrum of the proposed hybrids to the field of electro-thermal actuators. The work proposed here paves the way for the design and production of novel 2D materials combinations with tailored multi-functionalities suited for a large variety of modern applications.
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Affiliation(s)
- Charalampos Androulidakis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece
| | - Maria Kotsidi
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece
- Department of Chemical Engineering, University of Patras, 26504, Patras, Greece
| | - George Gorgolis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece
| | - Christos Pavlou
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece
- Department of Chemical Engineering, University of Patras, 26504, Patras, Greece
| | - Labrini Sygellou
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece
| | - George Paterakis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece
- Department of Chemical Engineering, University of Patras, 26504, Patras, Greece
| | - Nick Koutroumanis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece
- Department of Chemical Engineering, University of Patras, 26504, Patras, Greece
| | - Costas Galiotis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504, Patras, Greece.
- Department of Chemical Engineering, University of Patras, 26504, Patras, Greece.
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Remediation of chromium- and fluoride-contaminated groundwater by immobilized Citrobacter sp. on a nano-ZrO2 hybrid material. PLoS One 2021; 16:e0253496. [PMID: 34161350 PMCID: PMC8221520 DOI: 10.1371/journal.pone.0253496] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 06/04/2021] [Indexed: 11/23/2022] Open
Abstract
To effectively address excessive SO42-, Cr(VI), total chromium and F- in the groundwater of acidic mining areas, a facultative anaerobic bacterium, Citrobacter, with sulfate-reducing properties, tolerance to hexavalent chromium and the ability to reduce Cr(VI) to Cr(III) was isolated and domesticated. Based on microbial immobilization technology, a nano-ZrO2 polyacrylamide hybrid material was prepared as an embedding agent to form nano-ZrO2 polyacrylamide Citrobacter (ZPC) particles. ZPC was microscopically characterized, and the removal performance and mechanism of ZPC for SO42-, Cr(VI), total chromium and F- in groundwater were analyzed. The results of single-factor tests showed that the optimal reaction conditions included a reaction temperature of 35°C, Citrobacter dosage of 35% (volume ratio) in the particles and hybrid material dosage of 300 mL; under these conditions, the removal rates of SO42-, Cr(VI), total chromium and F- were 70.5%, 100%, 100% and 93.3%, respectively, and the pH value increased from 4.6 to 8.07. On this basis, the effects of the reaction layer type, influent hydraulic load and influent concentration on the removal efficiency of polluted groundwater were studied through dynamic experiments. The experimental results showed that ZPC particles were better than Citrobacter as a reaction layer; the optimal influent hydraulic load was 3.0 m3/(m2·d); the selectivity of ZPC particles to anions and anionic groups was different; and the order of adsorption selectivity was F- > Cr(VI) > SO42-.
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Mondal H, Karmakar M, Chattopadhyay PK, Halder A, Singha NR. Scale-up one-pot synthesis of waste collagen and apple pomace pectin incorporated pentapolymer biocomposites: Roles of waste collagen for elevations of properties and unary/ ternary removals of Ti(IV), As(V), and V(V). JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124873. [PMID: 33548741 DOI: 10.1016/j.jhazmat.2020.124873] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/24/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Herein, hazardous solid particulate waste collagenic fibers (SWCFs) of leather industries were incorporated into apple pomace pectin (APPN)-grafted-pentapolymer, i.e., APPN-g-[sodium 2-methylidenebutanedioate(SMBD)-co-N-((3-(isopropylamino)-3-oxopropoxy) methyl) butyramide (CM1)-co-N-(hydroxymethyl)prop-2-enamide (NHMPE)-co-N-(hydroxymethyl)-4-(N-isopropylbutyramido)butanamide (CM2)-co-N-(propan-2-yl)prop-2-enamide NPYPE)/ PENP1], i.e., APPN-g-PENP1/ PENP2, prepared via one-pot facile polymerization of APPN and synthetic monomers, i.e., SMBD, NHMPE, and NPYPE, in aqueous medium, to fabricate an optimum multifunctional hybrid biocomposite adsorbent/ HCOM3. In PENP1, PENP2, and HCOM3, fourth/ CM1 and fifth/ CM2 multifunctional comonomers were anchored in situ. The structures of PENP1, PENP2, HCOM3, CM1, CM2, and metal-ion adsorbed HCOM3; APPN-grafting; SWCF incorporation; and surface properties were analyzed through NMR, XPS, FTIR, XRD, and SEM. The elevated adsorption efficiencies (AEs), reusability, thermostability, swelling, network durability, and crosslink density of HCOM3 were attributed to variable functionalities of SWCF/ APPN, explored by DLS and TGA, swelling, network, and thermodynamic parameters. Compared to SWCF, APPN, PENP1, and PENP2, the elevated AEs and reusability compelled HCOM3 as more suitable for scalable waste management. The maximum AEs, i.e., 171.79, 180.47, and 177.27 mg g-1, for Ti(IV), As(V), and V(V) at pHop = 7.0, 3.0, and 5.0, respectively, within 5-100 mg L-1 and at 298 K for 25 mg HCOM3 deteriorated during ternary adsorption by the antagonistic effects.
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Affiliation(s)
- Himarati Mondal
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post-Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Mrinmoy Karmakar
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post-Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Pijush Kanti Chattopadhyay
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post-Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Aparna Halder
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post-Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Nayan Ranjan Singha
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post-Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India.
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15
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Singh AK, Lakshmi GBVS, Dhiman TK, Kaushik A, Solanki PR. Bio-Active Free Direct Optical Sensing of Aflatoxin B1 and Ochratoxin A Using a Manganese Oxide Nano-System. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2020.621681] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aflatoxins-B1 (AFB1) and Ochratoxin-A (OchA) are the two types of major mycotoxin produced by Aspergillus flavus, Aspergillus parasiticus fungi, Aspergillus carbonarius, Aspergillus niger, and Penicillium verrocusumv. These toxins are mainly found in metabolite cereals, corn, coffee beans, and other oil-containing food items. Excessive consumption of these toxins can be carcinogenic and lead to cancer. Thus, their rapid testing became essential for food quality control. Herein, manganese oxide nanoparticles (MnO2 nps) have been proposed to explore the interaction with AFB1 and OchA using UV-visible spectroscopy. MnO2 nps were synthesized using the co-precipitation method. They were pure and crystalline with an average crystallite size of 5–6 nm. In the UV-vis study, the maximum absorbance for MnO2 nps was observed around 260 nm. The maximum absorbance for AFB1 and OchA was observed at 365 and 380 nm, respectively, and its intensity enhanced with the addition of MnO2 nps. Sequential changes were observed with varying the concentration of AFB1 and OchA with a fixed concentration of MnO2 nps, resulting in proper interaction. The binding constant (kb) and Gibbs free energy for MnO2 nps-AFB1 and OchA were observed as 1.62 × 104 L g−1 and 2.67 × 104 L g−1, and −24.002 and −25.256 kJ/mol, respectively. The limit of detection for AFB1 and OchA was measured as 4.08 and 10.84 ng/ml, respectively. This bio‐active free direct sensing approach of AFB1 and OchA sensing can be promoted as a potential analytical tool to estimate food quality rapidly and affordable manner at the point of use.
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16
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Kaushik J, Kumar V, Garg AK, Dubey P, Tripathi KM, Sonkar SK. Bio-mass derived functionalized graphene aerogel: a sustainable approach for the removal of multiple organic dyes and their mixtures. NEW J CHEM 2021. [DOI: 10.1039/d1nj00470k] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, fabrication of a functionalized graphene aerogel (f-GA) from a biomass (pear fruit)-derived graphene aerogel (GA) is described. f-GA is showing better adsorption capacity towards CV, MB and RhB dyes than GA and activated charcoal.
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Affiliation(s)
- Jaidev Kaushik
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
| | - Vishrant Kumar
- Department of Chemical Engineering
- Indian Institute of Science Education and Research
- Bhopal-462066
- India
| | - Anjali Kumari Garg
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
| | - Prashant Dubey
- Centre of Material Sciences
- Institute of Interdisciplinary Studies
- Nehru Science Complex
- University of Allahabad
- Prayagraj-211002
| | - Kumud Malika Tripathi
- Department of Chemistry
- Indian Institute of Petroleum and Energy
- Visakhapatnam-530003
- India
| | - Sumit Kumar Sonkar
- Department of Chemistry
- Malaviya National Institute of Technology Jaipur
- Jaipur-302017
- India
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17
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Zhang W, Abdelrasoul GN, Savchenko O, Abdrabou A, Wang Z, Chen J. Ultrasound-assisted magnetic nanoparticle-based gene delivery. PLoS One 2020; 15:e0239633. [PMID: 32970723 PMCID: PMC7514102 DOI: 10.1371/journal.pone.0239633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/09/2020] [Indexed: 11/18/2022] Open
Abstract
Targeted gene delivery is important in biomedical research and applications. In this paper, we synergistically combine non-viral chemical materials, magnetic nanoparticles (MNPs), and a physical technique, low-intensity pulsed ultrasound (LIPUS), to achieve efficient and targeted gene delivery. The MNPs are iron oxide super-paramagnetic nanoparticles, coated with polyethyleneimine (PEI), which makes a high positive surface charge and is favorable for the binding of genetic materials. Due to the paramagnetic properties of the MNPs, the application of an external magnetic field increases transfection efficiency while LIPUS stimulation enhances cell viability and permeability. We found that stimulation at the intensity of 30 mW/cm2 for 10 minutes yields optimal results with a minimal adverse effect on the cells. By combining the effect of the external magnetic field and LIPUS, the genetic material (GFP or Cherry Red plasmid) can enter the cells. The flow cytometry results showed that by using just a magnetic field to direct the genetic material, the transfection efficiency on HEK 293 cells that were treated by our MNPs was 56.1%. Coupled with LIPUS stimulation, it increased to 61.5% or 19% higher than the positive control (Lipofectamine 2000). Besides, compared with the positive control, our method showed less toxicity. Cell viability after transfection was 63.61%, which is 19% higher than the standard transfection technique. In conclusion, we designed a new gene-delivery method that is affordable, targeted, shows low-toxicity, yet high transfection efficiency, compared to other conventional approaches.
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Affiliation(s)
- Wei Zhang
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Gaser N Abdelrasoul
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | | | - Abdalla Abdrabou
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Zhixiang Wang
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Jie Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada.,Department of Biomedical Engineering, University of Alberta, Edmonton, Canada
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18
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Li Z, Chen X, Qiu L, Wang Y, Zhou Z. Nano Porous Carbon Derived from Citrus Pomace for the Separation and Purification of PMFs in Citrus Processing Wastes. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:nano10101914. [PMID: 32992899 PMCID: PMC7600721 DOI: 10.3390/nano10101914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/17/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
The by-product of citrus juice processing is a huge source of bioactive compounds, especially polymethoxyflavones (PMFs) and fibers. In this study, a method for the separation and purification of PMFs from citrus pomace was established based on citrus nanoporous carbon (CNPC) enrichment. Different biomass porous carbons were synthesized, their adsorption/desorption characteristics were evaluated, and the CNPCs from the peel of Citrus tangerina Tanaka were found to be best for the enrichment of PMFs from the crude extracts of citrus pomace. Using this method, six PMF compounds including low-abundant PMFs in citrus fruits such as 5,6,7,4'-tetramethoxyflavone and 5-hydroxy-6,7,8,3',4'-pentamethoxyflavone can be simultaneously obtained, and the purities of these compounds were all higher than 95%, with the highest purity of nobiletin reaching 99.96%. Therefore, CNPCs have a great potential for the separation and purification of PMFs in citrus processing wastes, potentially improving the added value of citrus wastes. We also provide a method reference for disposing of citrus pomace in the future.
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Affiliation(s)
- Zhenqing Li
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Xin Chen
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Lulu Qiu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Yu Wang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Zhiqin Zhou
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
- The Southwest Institute of Fruits Nutrition, Banan District, Chongqing 400054, China
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, Chongqing 400715, China
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19
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Green synthesis of peptide functionalized reduced graphene oxide (rGO) nano bioconjugate with enhanced antibacterial activity. Sci Rep 2020; 10:9441. [PMID: 32523022 PMCID: PMC7287048 DOI: 10.1038/s41598-020-66230-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/18/2020] [Indexed: 12/30/2022] Open
Abstract
Bioengineered nanoconjugates have enormous potential as a multifunctional platform for biomedical applications. Conjugation between biotic and abiotic materials enables formulation of nanoconjugates with enhanced physico-chemical properties, increased stability and ability to overcome the inherent shortcomings of individual materials. In this study, we report the preparation and biophysical characterization of an antibacterial system formulated by functionalizing reduced graphene oxide (rGO) with an antimicrobial peptide via covalent as well as non-covalent interaction mechanisms. Environmentally benign synthesis approach was adopted for the formation of rGO, using L-ascorbic acid as a reducing agent. Covalently conjugated peptide-graphitic conjugate displayed improved antibacterial efficacy against Escherichia coli with considerably low cytotoxic activity towards erythrocytes in comparison to self-assembled conjugate and rGO alone. The studies described herein are highly significant in the field of biomaterials and aims to open new avenues of research focusing on a plethora of applications as a prospective non-toxic substitute to conventional antibacterial approaches.
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20
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Qu Z, Dong W, Chen Y, Dong G, Zhu S, Yu Y, Bian D. Upcycling of groundwater treatment sludge to magnetic Fe/Mn-bearing nanorod for chromate adsorption from wastewater treatment. PLoS One 2020; 15:e0234136. [PMID: 32520947 PMCID: PMC7286529 DOI: 10.1371/journal.pone.0234136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/19/2020] [Indexed: 11/18/2022] Open
Abstract
Groundwater treatment sludge is a Fe/Mn-bearing waste that is mass produced in groundwater treatment plant. In this study, sludge was converted to a magnetic adsorbent (MA) by adding ascorbate. The sludge was weakly magnetised in the amorphous form with Fe and Mn contents of 28.8% and 8.1%, respectively. After hydrothermal treatment, Fe/Mn oxides in the sludge was recrystallised to siderite and rhodochrosite, with jacobsite as the intermediate in the presence of ascorbate. With an increment in ascorbate dosage, the obtained magnetic adsorbent had a significant increase in chromate adsorption but a decrease in magnetisation. When the Mascorbate/MFe molar ratio was 10, the produced MA-10 was a dumbbell-shaped nanorod with a length of 2–5 μm and a diameter of 0.5–1 μm. This MA-10 showed 183.2 mg/g of chromate adsorption capacity and 2.81 emu/g of magnetisation. The mechanism of chromate adsorption was surface coprecipitation of the generated Cr3+ and Fe3+/Mn4+ from redox reaction between chromate and siderite/rhodochrosite on MA-10, separately. This study demonstrated an efficient recycling route of waste sludge from groundwater treatment to produce MA for treating chromate-bearing wastewater.
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Affiliation(s)
- Zhan Qu
- School of Environment, Northeast Normal University, Changchun, China
| | - Wenqing Dong
- School of Environment, Northeast Normal University, Changchun, China
| | - Yu Chen
- Jilin Institute of Forestry Survey and Design, Changchun, China
| | - Ge Dong
- School of Environment, Northeast Normal University, Changchun, China
| | - Suiyi Zhu
- School of Environment, Northeast Normal University, Changchun, China
- * E-mail:
| | - Yang Yu
- School of Chemical Science and Engineering, Longdong University, Qingyang, China
| | - Dejun Bian
- School of Environment, Northeast Normal University, Changchun, China
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21
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Synthesis of Conductive Carbon Aerogels Decorated with β-Tricalcium Phosphate Nanocrystallites. Sci Rep 2020; 10:5758. [PMID: 32238872 PMCID: PMC7113289 DOI: 10.1038/s41598-020-62822-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 03/16/2020] [Indexed: 01/13/2023] Open
Abstract
There has been substantial interest in research aimed at conductive carbon-based supports since the discovery that the electrical stimulus can have dramatic effect on cell behavior. Among these carbon-aerogels decorated with biocompatible polymers were suggested as future materials for tissue engineering. However, high reaction temperatures required for the synthesis of the aerogels tend to impair the stability of the polymeric networks. Herein, we report a synthetic route towards carbon-aerogel scaffolds decorated with biocompatible ceramic nanoparticles of tricalcium phosphate. The composites can be prepared at temperature as high as 1100 °C without significant effect on the morphology of the composite which is comparable with the original aerogel framework. Although the conductivity of the composites tends to decrease with the increasing ceramic content the measured conductivity values are similar to those previously reported on polymer-functionalized carbon-aerogels. The cell culture study revealed that the developed constructs support cell proliferation and provide good cell attachment suggesting them as potentially good candidates for tissue-engineering applications.
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22
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Hu X, Cao J, Yang H, Li D, Qiao Y, Zhao J, Zhang Z, Huang L. Pb2+ biosorption from aqueous solutions by live and dead biosorbents of the hydrocarbon-degrading strain Rhodococcus sp. HX-2. PLoS One 2020; 15:e0226557. [PMID: 31995615 PMCID: PMC6988972 DOI: 10.1371/journal.pone.0226557] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/29/2019] [Indexed: 01/14/2023] Open
Abstract
In this study, the Pb2+ biosorption potential of live and dead biosorbents of the hydrocarbon-degrading strain Rhodococcus sp. HX-2 was analyzed. Optimal biosorption conditions were determined via single factor optimization, which were as follows: temperature, 25°C; pH, 5.0, and biosorbent dose, 0.75 g L−1. A response surface software (Design Expert 10.0) was used to analyze optimal biosorption conditions. The biosorption data for live and dead biosorbents were suitable for the Freundlich model at a Pb2+ concentration of 200 mg L−1. At this same concentration, the maximum biosorption capacity was 88.74 mg g−1 (0.428 mmol g−1) for live biosorbents and 125.5 mg g−1 (0.606 mmol g−1) for dead biosorbents. Moreover, in comparison with the pseudo-first-order model, the pseudo-second-order model seemed better to depict the biosorption process. Dead biosorbents seemed to have lower binding strength than live biosorbents, showing a higher desorption capacity at pH 1.0. The order of influence of competitive metal ions on Pb2+ adsorption was Cu2+ > Cd2+ > Ni+. Fourier-transform infrared spectroscopy analyses revealed that several functional groups were involved in the biosorption process of dead biosorbents. Scanning electron microscopy showed that Pb2+ attached to the surface of dead biosorbents more readily than on the surface of live biosorbents, whereas transmission electron microscopy confirmed the transfer of biosorbed Pb2+ into the cells in the case of both live and dead biosorbents. It can thus be concluded that dead biosorbents are better than live biosorbents for Pb2+ biosorption, and they can accordingly be used for wastewater treatment.
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Affiliation(s)
- Xin Hu
- College of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, China
| | - Jiachang Cao
- College of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, China
| | - Hanyu Yang
- College of Management Science and Engineering, Capital University of Economics and Business, Beijing, China
| | - Dahui Li
- College of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, China
| | - Yue Qiao
- College of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, China
| | - Jialin Zhao
- College of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, China
| | - Zhixia Zhang
- College of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, China
| | - Lei Huang
- College of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Drug Targeting and Bioimaging, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, China
- * E-mail:
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23
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Jung S, Myung Y, Das GS, Bhatnagar A, Park JW, Tripathi KM, Kim T. Carbon nano-onions from waste oil for application in energy storage devices. NEW J CHEM 2020. [DOI: 10.1039/d0nj00699h] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Carbon nano onions produced by a sustainable and green synthetic method were utilized as high packing density electrode material for supercapacitor application.
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Affiliation(s)
- SungHoon Jung
- Department of Materials Science and Engineering
- Gachon University
- Gyeonggi-do 13120
- South Korea
| | - Yusik Myung
- Department of Materials Science and Engineering
- Gachon University
- Gyeonggi-do 13120
- South Korea
| | - Gouri Sankar Das
- Department of Materials Science and Engineering
- Gachon University
- Gyeonggi-do 13120
- South Korea
| | - Amit Bhatnagar
- Department of Environmental and Biological Sciences
- University of Eastern Finland
- Kuopio
- Finland
| | - Jun-Woo Park
- Next Generation Battery Research Center
- Korea Electrotechnology Research Institute
- Gyeongsangnam-do 51543
- Korea
| | | | - TaeYoung Kim
- Department of Materials Science and Engineering
- Gachon University
- Gyeonggi-do 13120
- South Korea
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24
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Bajpai VK, Shukla S, Khan I, Kang SM, Haldorai Y, Tripathi KM, Jung S, Chen L, Kim T, Huh YS, Han YK. A Sustainable Graphene Aerogel Capable of the Adsorptive Elimination of Biogenic Amines and Bacteria from Soy Sauce and Highly Efficient Cell Proliferation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43949-43963. [PMID: 31684721 DOI: 10.1021/acsami.9b16989] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A graphene aerogel (GA) with a three-dimensional (3D) structure, ultra-lightweight nature, and high hydrophobicity was simply fabricated by the one-step pyrolysis of glucose and ammonium chloride. The as-synthesized GA exhibited a 3D interconnected microporous architecture with a high surface area of ∼2860 m2 g-1 and pore volume of 2.24 cm3 g-1. The hydrophobic GA (10 mg 100 mL-1) demonstrated rapid and excellent adsorption performance for the removal of food toxins such as various biogenic amines (histamine, cadaverine, and spermine) and the hazardous bacterium Staphylococcus aureus (a food contaminant and a cause of poor wound healing) from a liquid matrix with a maximum simultaneous adsorption capacity for multiple biogenic amines of >85.19% (histamine), 74.1% (cadaverine), and 70.11% (spermidine) and a 100% reduction in the viable cell count of S. aureus within 80 min of interaction. The outstanding adsorption capacity can be attributed to a highly interconnected porous network in the 3D architecture and a high surface-to-volume ratio. A case study using soy sauce spiked with multiple biogenic amines showed successful removal of toxins with excellent recyclability without any loss in absorption performance. Biocompatibility of the GA in terms of cell viability was observed even at high concentrations (83.46% and 75.28% at 25 and 50 mg mL-1, respectively). Confirmatory biocompatibility testing was conducted via live/dead cell evaluation, and the morphology of normal lung epithelial cells was examined via scanning electron microscopy showed no cellular shrinkage. Moreover, GA showed excellent removal of live colonies of S. aureus from the food matrix and immunoblotting analysis showed elevated protein expression levels of β-catenin and α-SMA (α-smooth muscle actin). The biocompatible sugar-based GA could simultaneously adsorb multiple biogenic amines and live bacteria and was easy to regenerate via simple separation due to its high floatability, hydrophobicity, surface area, and porosity without any structural and functional loss, making it especially relevant for food safety and biomedical applications.
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Affiliation(s)
- Vivek K Bajpai
- Department of Energy and Materials Engineering , Dongguk University - Seoul , 30 Pildong-ro 1-gil, Seoul 04620 , Republic of Korea
| | - Shruti Shukla
- Department of Food Science and Technology , National Institute of Food Technology Entrepreneurship and Management (NIFTEM) , Sonipat , Haryana 131028 , India
| | - Imran Khan
- Department of Chemical Engineering , Inha University , 100 Inha-ro, Nam-gu, Incheon 22212 , Republic of Korea
| | - Sung-Min Kang
- Department of Biomedical Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Yuvaraj Haldorai
- Department of Nanoscience and Technology , Bharathiar University , Coimbatore 641046 , Tamil Nadu , India
| | - Kumud Malika Tripathi
- Department of Bionanotechnology , Gachon University , 1342 Seongnam-daero, Sujeong-gu, Seongnam-si , Gyeonggi-do 461-701 , Republic of Korea
| | - SungHoon Jung
- Department of Bionanotechnology , Gachon University , 1342 Seongnam-daero, Sujeong-gu, Seongnam-si , Gyeonggi-do 461-701 , Republic of Korea
| | - Lei Chen
- College of Food Science , Fujian Agriculture and Forestry University , Fuzhou , Fujian 350002 , China
| | - TaeYoung Kim
- Department of Bionanotechnology , Gachon University , 1342 Seongnam-daero, Sujeong-gu, Seongnam-si , Gyeonggi-do 461-701 , Republic of Korea
| | - Yun Suk Huh
- Department of Chemical Engineering , Inha University , 100 Inha-ro, Nam-gu, Incheon 22212 , Republic of Korea
| | - Young-Kyu Han
- Department of Energy and Materials Engineering , Dongguk University - Seoul , 30 Pildong-ro 1-gil, Seoul 04620 , Republic of Korea
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25
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Magnetic hollow poly(cyclotriphosphazene-co-4,4′-sulfonyldiphenol)-Fe3O4 hybrid nanocapsules for adsorbing Safranine T and catalytic oxidation of 3,3′,5,5′-tetramethylbenzidine. J Colloid Interface Sci 2019; 556:278-291. [DOI: 10.1016/j.jcis.2019.08.073] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/19/2019] [Accepted: 08/20/2019] [Indexed: 01/14/2023]
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26
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Das GS, Shim JP, Bhatnagar A, Tripathi KM, Kim T. Biomass-derived Carbon Quantum Dots for Visible-Light-Induced Photocatalysis and Label-Free Detection of Fe(III) and Ascorbic acid. Sci Rep 2019; 9:15084. [PMID: 31636279 PMCID: PMC6803716 DOI: 10.1038/s41598-019-49266-y] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 08/19/2019] [Indexed: 12/11/2022] Open
Abstract
Visible-light-driven photocatalysts prepared using renewable resources are crucial but challenging to develop for the efficient degradation of organic pollutants, which is required to solve ever-increasing water deterioration issues. In this study, we report a visible-light-responsive photocatalyst for the efficient degradation of methylene blue (MB) as a model pollutant dye. Green-emissive carbon quantum dots (CQDs) were synthesized from pear juice via a facile, scalable, one-pot solvothermal process. The as-synthesized CQDs exhibit superior photocatalytic activity under visible-light irradiation owing to their efficient light absorption, electron transfer, and separation of photogenerated charge carriers, facilitating ~99.5% degradation of MB within 130 min. A possible mechanism for the photocatalysis is proposed on the basis of comprehensive active species trapping experiments. Furthermore, the CQDs were used in a specific sensitive assay for Fe(III) and ascorbic acid (AA), even with interference from other metal ions. The fluorescence emission of CQDs was "turned off" specifically upon binding of Fe(III) and "turned on" with AA. The prepared CQDs represent efficient photocatalysts and fluorescent probes that are not restricted by toxicity, cost, or lack of scalability.
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Affiliation(s)
- Gouri Sankar Das
- Department of Bionanotechnology, Gachon University, 1342 Seongnam-daero, Sujeong-gu Seongnam-si, Gyeonggi-do, 13120, South Korea
| | - Jong Pil Shim
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Korea
| | - Amit Bhatnagar
- Department of Environmental and Biological Sciences, University of Eastern Finland, FI-70211, Kuopio, Finland
| | - Kumud Malika Tripathi
- Department of Bionanotechnology, Gachon University, 1342 Seongnam-daero, Sujeong-gu Seongnam-si, Gyeonggi-do, 13120, South Korea.
| | - TaeYoung Kim
- Department of Bionanotechnology, Gachon University, 1342 Seongnam-daero, Sujeong-gu Seongnam-si, Gyeonggi-do, 13120, South Korea.
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu Seongnam-si, Gyeonggi-do, 13120, South Korea.
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27
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Šťastný M, Štengl V, Štenglová-Netíková I, Šrámová-Slušná M, Janoš P. Removal of anthracycline cytostatics from aquatic environment: Comparison of nanocrystalline titanium dioxide and decontamination agents. PLoS One 2019; 14:e0223117. [PMID: 31603899 PMCID: PMC6788709 DOI: 10.1371/journal.pone.0223117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 09/13/2019] [Indexed: 11/29/2022] Open
Abstract
Anthracyclines are a class of pharmaceuticals used in cancer treatment have the potential to negatively impact the environment. To study the possibilities of anthracyclines (represented by pirarubicin and valrubicin) removal, chemical inactivation using NaOH (0.01 M) and NaClO (5%) as decontamination agents and adsorption to powdered nanocrystalline titanium dioxide (TiO2) were compared. The titanium dioxide (TiO2) nanoparticles were prepared via homogeneous precipitation of an aqueous solution of titanium (IV) oxy-sulfate (TiOSO4) at different amount (5-120 g) with urea. The as-prepared TiO2 samples were characterized by XRD, HRSEM and nitrogen physisorption. The adsorption process of anthracycline cytostatics was determined followed by high-performance liquid chromatography coupled with mass spectrometry (LC-MS) and an in-situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) technique. It was found that NaClO decomposes anthracyclines to form various transformation products (TPs). No TPs were identified after the reaction of valrubicin with a NaOH solution as well as in the presence of TiO2 nanoparticles. The best degree of removal, 100% of pirarubicin and 85% of valrubicin, has been achieved in a sample with 120 grams of TiOSO4 (TIT120) and TiO2 with 60 grams (TIT60), respectively.
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Affiliation(s)
- Martin Šťastný
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež, Czech Republic
| | - Václav Štengl
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež, Czech Republic
| | | | | | - Pavel Janoš
- Faculty of the Environment, J.E.Purkyně University in Ústí nad Labem, Ústí nad Labem, Czech Republic
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28
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Modulating Linker Composition of Haptens Resulted in Improved Immunoassay for Histamine. Biomolecules 2019; 9:biom9100597. [PMID: 31614550 PMCID: PMC6843301 DOI: 10.3390/biom9100597] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/05/2019] [Accepted: 10/06/2019] [Indexed: 11/26/2022] Open
Abstract
Histamine (HA) is an important food contaminant generated during food fermentation or spoilage. However, an immunoassay for direct (derivatization free) determination of HA has rarely been reported due to its small size to induce the desired antibodies by its current hapten-protein conjugates. In this work, despite violating the classical hapten design criteria which recommend introducing a linear aliphatic (phenyl free) linker into the immunizing hapten, a novel haptens, HA-245 designed and synthesized with a phenyl-contained linker, exhibited significantly enhanced immunological properties. Thus, a quality-improved monoclonal antibody (Mab) against HA was elicited by its hapten-carrier conjugates. Then, as the linear aliphatic linker contained haptens, Hapten B was used as linker-heterologous coating haptens to eliminate the recognition of linker antibodies. Indirect competitive ELISA (ic-ELISA) was developed with a 50% inhibition concentration (IC50) of 0.21 mg/L and a limit of detection (LOD) of 0.06 mg/L in buffer solution. The average recoveries of HA from spiked food samples for this ic-ELISA ranged from 84.1% and 108.5%, and the analysis results agreed well with those of referenced LC-MS/MS. This investigation not only realized derivatization-free immunoassay for HA, but also provided a valuable guidance for hapten design and development of immunoassay for small molecules.
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29
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Modifying the structure, emulsifying and rheological properties of water-soluble protein from chicken liver by low-frequency ultrasound treatment. Int J Biol Macromol 2019; 139:810-817. [DOI: 10.1016/j.ijbiomac.2019.08.062] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/16/2019] [Accepted: 08/07/2019] [Indexed: 12/18/2022]
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30
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He C, Qu J, Yu Z, Chen D, Su T, He L, Zhao Z, Zhou C, Hong P, Li Y, Sun S, Li C. Preparation of Micro-Nano Material Composed of Oyster Shell/Fe 3O 4 Nanoparticles/Humic Acid and Its Application in Selective Removal of Hg(II). NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E953. [PMID: 31262004 PMCID: PMC6669493 DOI: 10.3390/nano9070953] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/16/2019] [Accepted: 06/27/2019] [Indexed: 12/17/2022]
Abstract
Micro-nano composite material was prepared to adsorb Hg(II) ions via the co-precipitation method. Oyster shell (OS), Fe3O4 nanoparticles, and humic acid (HA) were used as the raw materials. The adhesion of nanoparticles to OS displayed by scanning electron microscopy (SEM), the appearance of the (311) plane of standard Fe3O4 derived from X-ray diffraction (XRD), and the transformation of pore sizes to 50 nm and 20 μm by mercury intrusion porosimetry (MIP) jointly revealed the successful grafting of HA-functionalized Fe3O4 onto the oyster shell surface. The vibrating sample magnetometer (VSM) results showed superparamagnetic properties of the novel adsorbent. The adsorption mechanism was investigated based on X-ray photoelectron spectroscopy (XPS) techniques, which showed the process of physicochemical adsorption while mercury was adsorbed as Hg(II). The effects of pH (3-7), initial solution concentration (2.5-30 mg·L-1), and contact time (0-5 h) on the adsorption of Hg(II) ions were studied in detail. The experimental data were well fitted to the Langmuir isotherm equation (R2 = 0.991) and were shown to follow a pseudo-second-order reaction model (R2 = 0.998). The maximum adsorption capacity of Hg(II) was shown to be 141.57 mg·g-1. In addition, this new adsorbent exhibited excellent selectivity.
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Affiliation(s)
- Chuxian He
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - Junhao Qu
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zihua Yu
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Daihuan Chen
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Tiantian Su
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Lei He
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zike Zhao
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Chunxia Zhou
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China
| | - Pengzhi Hong
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China
| | - Yong Li
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Shengli Sun
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Chengyong Li
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China.
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China.
- Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China.
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31
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Das GS, Tripathi KM, Kumar G, Paul S, Mehara S, Bhowmik S, Pakhira B, Sarkar S, Roy M, Kim T. Nitrogen-doped fluorescent graphene nanosheets as visible-light-driven photocatalysts for dye degradation and selective sensing of ascorbic acid. NEW J CHEM 2019. [DOI: 10.1039/c9nj02344e] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Facile synthesis of water soluble fluorescent N-doped graphene nanosheets for multifunctional applications in photocatalysis and sensing.
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Affiliation(s)
- Gouri Sankar Das
- Department of Bionanotechnology
- Gachon University
- Seongnam 13120
- South Korea
| | | | - Gautam Kumar
- National Institute of Technology Agartala
- Jirania
- India
| | - Sudip Paul
- National Institute of Technology Agartala
- Jirania
- India
| | - Surbhi Mehara
- National Institute of Technology Agartala
- Jirania
- India
| | - Soumalya Bhowmik
- Centre for Healthcare Science and Technology
- Nanoscience and Synthetic Leaf Laboratory at Downing Hall
- Indian Institute of Engineering Science and Technology
- Howrah-711103
- India
| | - Bholanath Pakhira
- Centre for Healthcare Science and Technology
- Nanoscience and Synthetic Leaf Laboratory at Downing Hall
- Indian Institute of Engineering Science and Technology
- Howrah-711103
- India
| | - Sabyasachi Sarkar
- Centre for Healthcare Science and Technology
- Nanoscience and Synthetic Leaf Laboratory at Downing Hall
- Indian Institute of Engineering Science and Technology
- Howrah-711103
- India
| | - Manas Roy
- National Institute of Technology Agartala
- Jirania
- India
| | - TaeYoung Kim
- Department of Materials Science and Engineering
- Gachon University
- Seongnam 13120
- South Korea
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