Article
Engineering, Environmental
Fenglei Liu, Yiting Lou, Fang Xia, Baowei Hu
Summary: A novel collaborative strategy was developed by loading nZVI into the inter-layer structure of MBenes, enhancing the removal of U(VI)/Cr(VI). The results showed that nZVI@MBenes exhibited higher removal rate and saturated capacity compared to nZVI or MBenes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Marguerite Parnis, Fabiana Elena Garcia, Melanie Victoria Toledo, Victor Nahuel Montesinos, Natalia Quici
Summary: The immobilization of zerovalent iron nanoparticles (nZVI) in alginate beads was studied for the treatment of Cr(VI) in continuous flow systems. The immobilized nanoparticles showed a uniform distribution and preserved the alpha-Fe phase. The efficiency of Cr(VI) removal increased with temperature and decreased with pH, and there was no significant difference between anoxic and oxic conditions. The nanocomposites exhibited a high removal capacity for Cr(VI), and the formed Cr(III) was retained by the alginate matrix.
Article
Engineering, Environmental
Wenwen Ji, Yuan Liang, Hui Ma, Shengyan Pu, Uttam Kumar Sahu
Summary: This study focused on the use of low-cost magnetic biochar adsorbent prepared from Litchi chinensis peel for the amelioration of Cr(VI) through reduction-adsorption process. The results showed that the magnetic biochar had good mesoporous nature and magnetic properties. Under the optimized conditions, the adsorbent achieved a removal efficiency of 95.38% for Cr(VI), and the adsorption mechanism was explained through XPS analysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Yingnan He, Jianbing Chen, Jiapei Lv, Yimin Huang, Shuxing Zhou, Wenyan Li, Yongtao Li, Fengqin Chang, Hucai Zhang, Thomas Wagberg, Guangzhi Hu
Summary: The study of composite alginate gel beads with Eichhornia crassipes biochar and polyethyleneimine as a surface modifier for adsorbing Cr(VI) showed promising results, indicating high adsorption capacity and potential for wastewater treatment.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Polymer Science
Aijun Deng, Shaojie Wu, Junjie Hao, Hongbo Pan, Mingyang Li, Xiangpeng Gao
Summary: Heavy metal pollution, especially chromium contamination, is a significant problem in water treatment. Traditional methods for treating chromium-containing wastewater have limitations in terms of complexity and secondary pollution. Therefore, finding efficient and fast processing methods is crucial. In this study, a novel composite gel (T-BSA) was synthesized by modifying sodium alginate with thiourea and mixed with biochar. The T-BSA gel showed promising results in removing 99.98% of Cr(VI) from aqueous solutions through synergistic adsorption and photocatalytic reduction under UV light irradiation. The study also analyzed the mechanism behind the removal process and demonstrated that polysaccharide-derived materials can serve as efficient photocatalysts for wastewater treatment.
Article
Chemistry, Multidisciplinary
Jien Ye, Yating Luo, Jiacong Sun, Jiyan Shi
Summary: The study found that bentonite-modified nZVI showed improved efficiency in removing Cr(VI) and enhanced transport performance compared to nZVI. The transport of both materials was negatively correlated with the clay composition in different soils. Besides, modification of nZVI by bentonite reduced toxicity to luminous bacteria and ryegrass, indicating potential for in situ environmental remediation.
Article
Environmental Sciences
Yue Zhang, Yayuan Mo, Thierry Vincent, Catherine Faur, Eric Guibal
Summary: In this study, APEI beads were quaternized to enhance the sorption of Cr(VI), with optimal pH of 2 for both sorption and reduction. The reduction-assisted sorption mechanism boosts the global removal of chromate, while the sorbent's stability for Cr(VI) removal was confirmed through three successive sorption and desorption cycles. The interactions between the sorbent and Cr(VI) were further elucidated using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS).
Article
Chemistry, Multidisciplinary
Shaojie Wu, Mingyang Li, Lili Xin, Hongming Long, Xiangpeng Gao
Summary: In this study, an asynchronous cross-linked triethylenetetramine modified sodium alginate (CFTS) was used as a photocatalyst for the simultaneous degradation of Cr(VI) and metronidazole (MNZ) under UV light irradiation. The removal efficiency of Cr(VI) and MNZ reached 99.5% and 100% respectively within a short period of time. The removal mechanisms involve electrostatic adsorption and photocatalytic reduction for Cr(VI), as well as photocatalytic oxidation for MNZ.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Shaojie Wu, Cheng Han, Lili Xin, Mingyang Li, Hongming Long, Xiangpeng Gao
Summary: In this study, a novel composite material was synthesized by blending CuS nano-crystals into triethylenetetramine modified sodium alginate, showing high adsorption ability for Cr(VI) and enhanced photocatalytic removal. The effects of CuS dosage, pH value, light source, and intensity on Cr(VI) removal were investigated. The synthesized composite achieved a removal rate of 98.99% within 50 minutes under UV light irradiation with citric acid as a hole scavenger. The adsorption isotherm, thermodynamics, and kinetics were discussed, indicating that monolayer and chemical adsorption were dominant mechanisms. Amino and hydroxyl groups contributed electrons in the photocatalysis reaction for the reduction of Cr(VI) to Cr(III). CuS nanocrystals enhanced the surface charge and light absorbance ability of the composite, governing the electrostatic interaction and photo-induced redox reaction in Cr(VI) removal.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Shaojie Wu, Mingyang Li, Lili Xin, Hongming Long, Xiangpeng Gao
Summary: A polysaccharide-derived composite was prepared by embedding carbonized chitosan into triethylenetetramine modified sodium alginate for the removal of hexavalent chromium. The composite exhibited high adsorption capacity and photocatalytic activity, effectively removing hexavalent chromium under UV light irradiation.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Environmental
YunJin Kim, Jinseok Park, Junsik Bang, Jungkyu Kim, Hyoung-Joon Jin, Hyo Won Kwak
Summary: Nanocellulose has promising applications in water treatment due to its unique properties, such as renewability and large surface area; a study showed that carboxymethyl cellulose nanofibrils modified with polyethyleneimine had excellent Cr(VI) removal capacity and stability; the removal of Cr(VI) was achieved through a combination of electrostatic attraction, chemical reduction, and chelation mechanisms.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Paper & Wood
Zhaoxing Hu, Jinyan Yang, Mengxin Liu, Wenhui Rao, Yijun Xie, Chuanbai Yu
Summary: A porous hollow bead (CS-Fe@PEI) was developed using cellulose nanofibers (CNFs), sodium alginate (SA), and amino-rich polyethyleneimine through a crosslinking process. The bead showed a high adsorption capacity for heavy metal ions and could be regenerated for multiple cycles.
Article
Engineering, Environmental
Yuyang Zhang, Ziying Zhu, YanGuang Liao, Zhi Dang, Chuling Guo
Summary: This study investigated the effect of Fe source on the performance of biosynthesized nano-FeS, finding that Fe(II) produced directly and indirectly led to different mackinawite products with varied capacities for removing hexavalent chromium (Cr(VI)).
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Xiaowei Xing, Xuemei Ren, Njud S. Alharbi, Changlun Chen
Summary: This study proposes a novel mesoporous Santa Barbara Amorphous-15 supported Fe/Ni bimetallic composite (SBA-15@Fe/Ni) for the removal of Cr(VI) contaminants in the water environment. The results show that SBA-15@Fe/Ni exhibits better stability and removal efficiency, and maintains excellent performance in the presence of various competitive ions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Yangfang Li, Jia Wen, Zhuangzhuang Xue, Xiyan Yin, Li Yuan, Cuilian Yang
Summary: In this study, a millimeter-sized composite material PPS was successfully synthesized for the efficient removal of Cr(VI) from water. PPS exhibited strong adsorption capacity, excellent physicochemical properties, and reusability. The results also showed that PPS could efficiently remove Cr and Cr(VI) from contaminated soil.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Nanoscience & Nanotechnology
Debolina Chakraborty, Debayan Ghosh, Sanjit Kumar, David Jenkins, Natarajan Chandrasekaran, Amitava Mukherjee
Summary: Oral cancer is a global problem, mainly caused by tobacco, alcohol, and poor dental hygiene. Conventional diagnostic and therapeutic approaches have limitations, and there is a need to enhance analytical performance. Nanoprobes have shown promise for early screening and predicting treatment outcomes for oral cancer.
WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY
(2023)
Article
Plant Sciences
Swarnali Dey, Subhabrata Paul, Anish Nag, Rhitorbi Sengupta, Geetha Gopal, Joel Jose, Jobi Xavier, Amitava Mukherjee, Rita Kundu
Summary: As rice is a major staple food for millions of people, increasing the iron content in rice is crucial for addressing global micronutrient malnutrition. Previous studies have shown that "iron pulsing" technique can significantly improve the nutritional value of rice by enriching it with iron, carbohydrates, protein, lipids, vitamins, nutrients, and antioxidants. Therefore, iron pulsing can serve as a novel and promising sustainable agricultural innovation for iron bio-fortification and overall nutritional improvement of rice, while remaining affordable and user-friendly.
PLANT GROWTH REGULATION
(2023)
Article
Fisheries
Haimanti Mondal, Natarajan Chandrasekaran, Amitava Mukherjee, John Thomas
Summary: Marine actinomycetes are under-explored but have the potential to be a source of novel bacterial species. In this study, 16 bacterial strains were isolated using Actinomycetes Isolation Agar medium, and two of them showed antibacterial activity against shrimp pathogens. One of the strains, Bacillus licheniformis VIT02, exhibited potent antibacterial properties. The bioactive compounds extracted from B. licheniformis were found to have antimicrobial properties and showed promise as antimicrobial drugs. The study also demonstrated the effectiveness of the bioactive compounds in treating A. hydrophila infection in M. rosenbergii.
AQUACULTURE INTERNATIONAL
(2023)
Article
Fisheries
Haimanti Mondal, S. Vaishnavi, B. Sara Pearl, U. Sharmila, John Thomas, Vimal Sugumar, Madhan Sugumar, Natarajan Chandrasekaran, Amitava Mukherjee
Summary: Bioactive compounds from Actinomycetes have various antibacterial, anticancer, antioxidant, and antifungal properties. This study investigated the effects of Bacillus licheniformis extract on bacterial infection in Macrobrachium rosenbergii and found enhanced antioxidant activity and immune response.
AQUACULTURE INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Soupam Das, Sayani Giri, Shinta Ann Jose, Mrudula Pulimi, Shalini Anand, N. Chandrasekaran, Pramod Kumar Rai, Amitava Mukherjee
Summary: This study investigated the toxicity of metal oxide nanoparticles (NPs) in mixtures using a freshwater microalga as a model organism. The results showed that dissolved ions in the nanoparticles mixtures contributed significantly to the toxicity. The binary and ternary mixtures of NPs exhibited higher toxic effects compared to individual entities. These findings highlight the importance of evaluating the combinatorial effects of metal oxide NPs.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2023)
Article
Environmental Sciences
Zachariah Sunil, John Thomas, Amitava Mukherjee, Natarajan Chandrasekaran
Summary: Most pharmaceuticals are stored in synthetic polymer bottles made of polyethylene, which can lead to toxicological impact on Donax faba. The leachate from the pharmaceutical container contained various organics and inorganics, with concentrations of heavy metals exceeding the standard reference value for drinking water. The leachate treatment resulted in increased protein concentration, elevated levels of reactive oxygen species (ROS) and malondialdehyde (MDA), and decreased activity of superoxide dismutase (SOD) and catalase (CAT). Moreover, the PET pharmaceutical containers could potentially release additives, causing oxidative and metabolic damages to higher organisms including humans.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2023)
Article
Plant Sciences
Swarnali Dey, Shreya Nath, Tauhid Alam Ansari, Ankita Biswas, Falguni Barman, Saikat Mukherjee, Geetha Gopal, Arindam Bhattacharyya, Amitava Mukherjee, Rita Kundu, Subhabrata Paul
Summary: The application of nanomaterials in agriculture has seen extensive exploration in the past decade, resulting in a wide range of nanoparticle-based agrochemicals. Metallic nanoparticles composed of plant macro- and micronutrients have been used as nutritional supplements for plants through various methods. However, most studies have focused on monometallic nanoparticles, limiting their usage and effectiveness. In this study, a bimetallic nanoparticle consisting of copper and iron was used in rice plants to test its efficacy in terms of growth and photosynthesis. Experiment results showed that foliar application of 5 mg L-1 bimetallic nanoparticle increased vigor and photosynthetic efficiency, while a concentration of 10 mg L-1 induced oxidative stress to some extent. Furthermore, the bimetallic nanoparticle treatment did not cause structural anomalies or cytotoxicity in the exposed plant parts. This study not only demonstrates the effectiveness of Cu-Fe bimetallic nanoparticles but also critically explores their safety on rice plants, providing valuable insights for designing new bimetallic nanoparticles and exploring their efficacy.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Plant Sciences
Abisha Christy Christudoss, Christian O. Dimkpa, Amitava Mukherjee
Summary: This study investigated the toxicity of graphene oxide (GO) on Allium cepa root tip cells and found that GO caused various toxic effects, especially genotoxicity. The extracellular polymeric substances (EPS) potentially played a role in reducing the toxic effects by decreasing oxidative stress.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Sonali Nath, Hemamalathi Kubendiran, Amitava Mukherjee, Rita Kundu
Summary: In this study, a novel green-synthesized iron oxide-silver nanocomposite-based delivery system for curcumin was developed to improve its druggability against the HPV-16 positive cervical cancer cell line SiHa. The curcumin-nanocomposite showed enhanced anti-proliferative capability compared to free curcumin, with increased cellular uptake at 24 h treatment. It modulated the PI3K/AKT/mTOR signaling cascade to induce both autophagic and apoptotic death in the target cells, mainly through imbalance in intracellular redox system and resultant augmented ROS accumulation. This study suggests that this bimetallic nanocomposite can increase bioavailability and therapeutic efficacy of curcumin.
PROCESS BIOCHEMISTRY
(2023)
Article
Environmental Sciences
M. Camil Rex, Shalini Anand, Pramod Kumar Rai, Amitava Mukherjee
Summary: The increasing production and utilization of nano-based commercial products have led to a significant release of engineered nanoparticles (ENPs) in the environment. These ENPs undergo various physical, chemical, and biological transformations upon release into aquatic systems. This review comprehensively evaluates the fate and transformation behavior of ENPs such as TiO2, ZnO, CuO, Ag, Fe3O4, NiO, SiO2, CeO2, quantum dots, and carbon nanotubes. The physicochemical properties of ENPs and environmental conditions play crucial roles in determining their fate and transformations.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Chemistry, Analytical
Soupam Das, Amitava Mukherjee
Summary: Disposable surgical face masks used during COVID-19 outbreak release microplastics into water, along with titanium dioxide nanoparticles (nTiO(2)). The leached microplastics from the masks were identified as polypropylene of varying sizes. In addition, heavy metals leached from the masks, combined with nTiO(2), pose a severe environmental threat as they cause cellular damage, decrease photosynthesis, and increase oxidative stress in algae.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2023)
Article
Environmental Sciences
Soupam Das, Sayani Giri, Gaurav Wadhwa, Mrudula Pulimi, Shalini Anand, Natarajan Chandrasekaran, Seyed Ali Johari, Pramod Kumar Rai, Amitava Mukherjee
Summary: Due to their remarkable properties, the applications of carbon-based nanomaterials (CNMs) such as graphene and functionalized multi-walled carbon nanotubes (f-MWCNTs) are increasing. These CNMs can enter the freshwater environment and potentially expose various organisms. The study found that both graphene and f-MWCNTs caused toxic effects on freshwater algae species, including a decrease in cell viability, esterase activity, and photosynthetic efficiency. The binary mixture of the pollutants showed a synergistic enhancement of the toxic potential. Oxidative stress played a critical role in the toxicity responses. The study highlights the importance of considering the combined effects of CNMs in evaluating ecotoxicity in freshwater organisms.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
M. Camil Rex, Abhrajit Debroy, M. Joyce Nirmala, Amitava Mukherjee
Summary: The unsustainable manufacturing, utilization and inadequate handling of plastics have caused a significant increase in global plastic pollution. There is growing concern about the potential hazards associated with exposure to micro/nanoplastics (M/NPs). Understanding the environmental behavior of M/NPs, particularly in aquatic systems, where they are likely to accumulate, is crucial. The formation of a biocorona (BC) through interaction with biomolecules within aquatic organisms modifies the physicochemical attributes of M/NPs, such as size, stability, and surface charge. This review discusses the concept of BC formation, analytical techniques for characterizing it, and its implications on the toxicity, fate, and transport of M/NPs in the environment.
Article
Chemistry, Multidisciplinary
A. Vinotha Alex, Amitava Mukherjee
Summary: This study presents a rapid and innovative fluorescent biosensor based on acetylcholinesterase (AChE) inhibition for detecting malaoxon. The biosensor utilizes AChE to catalyze the substrate ATCh, triggering citrate-coated AgNP aggregation and resulting in increased fluorescence emission. However, the presence of malaoxon inhibits AChE action, leading to decreased fluorescence emission. The biosensor demonstrates excellent linearity and low detection limits, showing potential for real-world applications in detecting malaoxon with high sensitivity and accuracy.
Article
Environmental Sciences
Mojtaba Ranjbar, Fatemeh Khakdan, Amitava Mukherjee
Summary: For the first time, green synthesis of copper oxide nanoparticles (CuO NPs) using Tanacetum parthenium L. extract was performed. The synthesized CuO NPs exhibited excellent antimicrobial activity, concentration-dependent inhibition of cancer cell growth, and efficient degradation of industrial dyes. This study highlights the potential of Tanacetum parthenium L. as a bio-agent for the synthesis of CuO NPs with multifunctional properties.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
