Article
Marine & Freshwater Biology
Xiaying Xin, Guohe Huang, Baiyu Zhang, Yang Zhou
Summary: Little is known about the trophic transfer of nanoparticles and personal care products via dietary exposure in an algae-algae eating fish food chain. The study explored the bioaccumulation of nano-TiO2, nano-ZnO, and triclosan in eight different combinations from algae to fish. Results revealed that the bioaccumulation of triclosan changed with algal biomass, while the bioaccumulation of titanium and zinc varied with the amount of lipids and proteins in algal cells.
AQUATIC TOXICOLOGY
(2021)
Article
Environmental Sciences
Emmanuel Sunday Okeke, Ekene John Nweze, Tobechukwu Christian Ezike, Charles Ogugua Nwuche, Timothy Prince Chidike Ezeorba, Chidiebele Emmanuel Ikechukwu Nwankwo
Summary: Nanoparticles have wide-ranging applications in industries, agriculture, pharmaceuticals, and biotechnology due to their small size, flexibility, biocompatibility, large surface area, and variable functionality. The use of silicon-based nanoparticles (Si-NPs) has shown benefits in plant growth and development, particularly under stressful environments. Si-NPs also have potential applications in environmental remediation, such as water purification and removal of toxic elements. This review discusses the sources and ecotoxicological consequences of potentially toxic elements (PTEs) in agroecosystems and highlights the potential of Si-NPs in mitigating PTEs and promoting food security.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yuying Chen, Wei Liu, Xiaojing Leng, Serge Stoll
Summary: This study investigates the algal toxicity of selenium nanoparticles (SeNPs) in aquatic systems, finding that SeNPs are more toxic in natural water compared to culture medium, with toxicity driven primarily by the nanoparticles themselves rather than dissolved ions. Surface coating and media properties play significant roles in controlling SeNPs toxicity in different environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Minh-Ky Nguyen, Chitsan Lin, Hoang-Lam Nguyen, Van-Giang Le, S. Haddout, Myoung-Jin Um, Soon W. Chang, D. Duc Nguyen
Summary: The production of plastic waste has significantly increased, resulting in the release of millions of tons of plastic waste into the environment annually. This waste can break down into smaller micro- and nanoplastics (MNPs), which are toxic to organisms and pose risks to aquatic ecosystems, food chains, and human health. This review provides a comprehensive assessment of the (eco)toxicity of MNPs on aquatic algae, highlighting the significant risks they pose to essential ecosystems and human health.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Gissela Pascual, Daisuke Sano, Takashi Sakamaki, Michihiro Akiba, Osamu Nishimura
Summary: The joint effect of temperature and pH on copper toxicity to microalgae was investigated in this study. The results showed that high temperature and pH increased the toxicity of copper to microalgae. Furthermore, the study suggested a higher risk of copper in cold seasons.
Article
Environmental Sciences
Pavla Kovalakova, Leslie Cizmas, Mingbao Feng, Thomas J. McDonald, Blahoslav Marsalek, Virender K. Sharma
Summary: This study evaluated the toxicity of antibiotics treated with ferrate (VI) in water, indicating that some antibiotics remained toxic even after treatment.
Article
Environmental Sciences
Ana Rita Carvalho, Ariana Isabel Perez-Pereira, Cristina Maria Cavadas Couto, Maria Elizabeth Tiritan, Claudia Maria Rosa Ribeiro
Summary: This study aimed to assess the ecotoxicity of effluents from wastewater treatment plants with different treatment technologies. The results showed that the toxicity of effluents to organisms varied depending on the season and treatment technology, highlighting the importance of ecotoxicological assays in complementing physicochemical and microbiological data for effective environmental management of wastewater treatment plants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Multidisciplinary Sciences
Michal Jakubczak, Dominika Bury, Muhammad Abiyyu Kenichi Purbayanto, Anna Wojcik, Dorota Moszczynska, Kaitlyn Prenger, Michael Naguib, Agnieszka Maria Jastrzebska
Summary: This study investigates the mechanism of bioremediation of 2D ceramic nanomaterials using model inorganic MXenes and microalgae. The results show that microalgae decompose the nanomaterials through surface-related physicochemical interactions. The presence of these nanomaterials has negligible environmental effects in freshwater ecosystems in both short- and long-term. This study provides important insights into the surface interaction-associated processes that drive the bioremediation of 2D nanomaterials and lays the foundation for further investigations on the environmental effects of inorganic crystalline nanomaterials.
SCIENTIFIC REPORTS
(2022)
Review
Engineering, Environmental
Michael J. Stapleton, Ashley J. Ansari, Faisal I. Hai
Summary: The adsorption of contaminants onto microplastics, including heavy metals, PFAS, PCBs, PAHs, PPCPs, and PBDs, has received significant attention. Understanding the factors influencing antibiotic sorption onto microplastics is crucial due to the potential role in antibiotic resistance. This review highlights the physico-chemical properties of polymers, antibiotic properties, and solution properties as key factors affecting antibiotic sorption onto microplastics.
Review
Environmental Sciences
Abhijeet Mahana, Olga I. Guliy, Surya Kant Mehta
Summary: Research has shown that metallic nanoparticles exhibit toxicity to algae but are less toxic compared to their corresponding metal ions. These nanoparticles can be transferred through aquatic food webs, but further investigation is needed on their internalization and toxicity mechanisms for algae.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Mohammed Sadeq Salman, Hasanain Saad Alhares, Qahtan Adnan Ali, Mohanad J. M-Ridha, Sabah J. Mohammed, Khalid M. Abed
Summary: In this study, modified algae with nano copper oxide were used as adsorption media to remove tetracycline from aqueous solutions. The optimum condition for removal was found to be at pH 7, a contact time of 240 min, a dosage of 5 g/L, an initial concentration of 25 mg/L, and a temperature of 45 degrees C. Thermodynamic and kinetic models indicated that the adsorption process was endothermic and followed a second-order kinetic model. The Langmuir model fitted the study well, suggesting homogeneous adsorption sites. Based on the experimental results and removal efficiency, the modified algae with nano copper oxide biomass was suitable for tetracycline removal.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Fisheries
Yuelei Dong, Xiaoyu Zhou, Jianwei Zheng, Jingyi Cen, Yuzao Qi, Songhui Lu, Lei Cui
Summary: This study focused on the accumulation of retinal (RAL) in marine algae induced by light and its teratogenic effects on aquatic organisms. The results showed that high-intensity blue light exposure induced RAL accumulation, leading to teratogenic effects on vertebrate fish.
Article
Engineering, Environmental
Haixia Wang, Chun Wang, Baosheng Ge, Xuezhi Zhang, Chengxu Zhou, Xiaojun Yan, Roger Ruan, Pengfei Cheng
Summary: This research investigated the effects of feeding two types of microalgae, Chlorella sp. and Isochrysis zhangjiangensis, to Ruditapes philippinarum (clams) in monoculture and co-culture. The study simulated the presence of heavy metals Cu2+, Pb2+, and Cd2+ in the culture waters and analyzed the growth of microalgae, antioxidant activity, and changes in nutrient TN and TP. The results showed that co-culture had the highest nutrient removal efficiency, with TN and TP removal rates ranging from 47.26% to 51.36% and 78.28% to 87.72% respectively. The study also revealed the mechanisms of heavy metal transport in the algae-shellfish system.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Marine & Freshwater Biology
Taiwo Hassan Akere, Aline Maria Zigiotto de Medeiros, Diego Stefani T. Martinez, Bashiru Ibrahim, Hanene Ali-Boucetta, Eugenia Valsami-Jones
Summary: This study examined the acute toxicity and bioaccumulation of graphene oxide-gold (GO-Au) nano-hybrid in neonates of Daphnia magna. The results showed no significant mortality or immobilization after exposure, but microscopic observation revealed uptake of the nanohybrid and internal damage in the gut of the organisms. Bioaccumulation of the GO-Au nanohybrid also occurred in a concentration-dependent manner. Continuous evaluation of the environmental risks from exposure to this nanohybrid and other advanced materials is crucial to prevent disruption to the ecosystem.
AQUATIC TOXICOLOGY
(2023)
Review
Environmental Sciences
Matilde Vieira Sanches, Rosa Freitas, Matteo Oliva, Alessia Cuccaro, Gianfranca Monni, Andrea Mezzetta, Lorenzo Guazzelli, Carlo Pretti
Summary: The potential release of ionic liquids into aquatic systems has led to concerns about their ecotoxicological effects on aquatic microorganisms and invertebrate species. This review examines 103 studies on ionic liquids and their toxicity to aquatic organisms, focusing on the factors influencing their toxicity. Freshwater species were studied more frequently than marine species, with algal species being the most commonly assessed. The combination of imidazolium cations with long alkyl-chain anions was found to be the most toxic.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Qiong Wang, Mengmeng Xu, Liting Zhao, Feng Wang, Youran Li, Guiyang Shi, Zhongyang Ding
Summary: Comparing metabolites and transcriptome dynamics in liquid superficial-static culture (LSSC) and submerged culture (SC), this study found that LSSC is a better method for producing Ganoderic acid (GA). Key genes regulating GA biosynthesis as well as potential candidate genes associated with different GAs were identified. Additionally, upregulation of genes in the ergosterol biosynthetic pathway during submerged culture was observed, providing insights for future research on regulatory mechanisms of GAs in Ganoderma lucidum.
MICROBIAL BIOTECHNOLOGY
(2021)
Article
Microbiology
Ke Ma, Anzhou Ma, Guodong Zheng, Ge Ren, Fei Xie, Hanchang Zhou, Jun Yin, Yu Liang, Xuliang Zhuang, Guoqiang Zhuang
Summary: The study found differences in microbial communities under different redox conditions in the Aiqigou mud volcano, with iron content potentially being an important factor influencing color stratification of sedimentary rocks. Under reduced conditions, rocks contained higher levels of chlorite, muscovite, and other minerals, while oxidized conditions had higher microbial diversity.
Article
Environmental Sciences
Hanchang Zhou, Anzhou Ma, Guohua Liu, Xiaorong Zhou, Jun Yin, Yu Liang, Feng Wang, Guoqiang Zhuang
Summary: The study found that during microbial community degradation, interactivity decreased and could lead to the extinction of plant ectomycorrhizal species. Due to a lack of research, there is currently limited understanding of how microbial community degradation affects other ecosystem components.
LAND DEGRADATION & DEVELOPMENT
(2021)
Article
Agricultural Engineering
Feifei Zhu, Xiu Chen, Yi Cui, Xinjuan Hu, Jingya Qian, Feng Wang, Ameer Ali Kubar, Ling Xu, Shuhao Huo
Summary: The weak magnetic field intervention has been found to have positive effects on the cultivation of filamentous algae, improving their biomass yield and oil productivity. It also decreases bacterial diversity and promotes the establishment of a symbiotic relationship between bacteria and algae.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Pengxue Geng, Anzhou Ma, Xiaoxia Wei, Xianke Chen, Jun Yin, Futang Hu, Xuliang Zhuang, Maoyong Song, Guoqiang Zhuang
Summary: This study investigated the distribution of petroleum hydrocarbons in the soils around oil production wells and revealed their impact on the microbiota. The findings showed that heavily contaminated soils were mainly distributed within a circle with a radius of 200 cm centered on the oil production well in the horizontal direction, and within the 0-50 cm soil layer in the vertical direction. Heavy petroleum hydrocarbon contamination significantly reduced microbial diversity and altered the microbiota's co-occurrence patterns.
ENVIRONMENTAL POLLUTION
(2022)
Article
Green & Sustainable Science & Technology
Anzhou Ma, Jiejie Zhang, Guohua Liu, Xuliang Zhuang, Guoqiang Zhuang
Summary: The glaciers in China play an important role in the Asian Water Tower, and the microbiomes in the glacier foreland have complex impacts on carbon cycling and climate change. Understanding the changes in these microbiomes is crucial for assessing feedback on climate change and impacts on ecosystems.
Article
Engineering, Environmental
Jun Yin, Xiaoxia Wei, Futang Hu, Changkun Cheng, Xuliang Zhuang, Maoyong Song, Guoqiang Zhuang, Feng Wang, Anzhou Ma
Summary: The halotolerant strain Bacillus velezensis BSA1 can produce biosurfactant and modulate the oil microbiome for enhancing oil recovery in low permeability oil reservoirs. Laboratory experiments showed that the oil recovered by B. velezensis BSA1 was 21.6 +/- 1.87 %. Field application also demonstrated successful results with a cumulative oil production of more than 500 m3 within 12 months. Monitoring of the microbial community in the reservoir revealed an increase in surfactant-producing bacteria and hydrocarbon-degrading bacteria, contributing to the enhancement of oil recovery.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Feng Wang, Xiaolei Yu, Yi Cui, Ling Xu, Shuhao Huo, Zhongyang Ding, Qiaofeng Hu, Weijiao Xie, Haitao Xiao, Dezhi Zhang
Summary: An efficient strategy for extracting phycobiliproteins from Spirulina platensis dry biomass using NaCl as an enhancer was developed. The extraction parameters were optimized using response surface methodology and achieved a high extraction rate of 74.8% and a phycocyanin yield of 102.4 mg/g with a purity of 74.0%. Adding NaCl facilitated the exudation of phycobiliproteins by breaking down the cells of S. platensis without affecting their structure and antioxidant activity. It also improved the stability of the phycobiliproteins. This study provides a potential method for high-efficiency and high-quality phycobiliprotein extraction using an inexpensive enhancer.
Article
Engineering, Environmental
Jun Yin, Xiaoxia Wei, Futang Hu, Changkun Cheng, Maoyong Song, Guoqiang Zhuang, Anzhou Ma
Summary: Microbial enhanced oil recovery (MEOR) is a promising method for sustainable oil production. This study reveals the existence of alternative stable states in an oil reservoir and explores the correlation between microbiota status and oil production increment. The introduction of biosurfactant-producing bacteria triggers a shift in microbiota status, resulting in higher oil recovery. The hysteresis of the microbial community requires frequent introduction of functional microbes to sustainably improve oil recovery.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaorong Zhou, Anzhou Ma, Xianke Chen, Qinwei Zhang, Xiaowei Guo, Guoqiang Zhuang
Summary: This study comprehensively characterized the dissolved organic matter (DOM) in alpine meadow soil using spectroscopy and mass spectrometry, and simulated the impact of climate warming using open-top chambers (OTCs). The results showed that climate warming had different effects on DOM at different soil depths, with significant changes in the upper and lower layers and minimal changes in the middle layer. Soil nutrients and pH were identified as key factors influencing the molecular composition of DOM.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Feng Wang, Xiaohui Li, Tingting Liu, Xiang Li, Yi Cui, Ling Xu, Shuhao Huo, Bin Zou, Jingya Qian, Anzhou Ma, Guoqiang Zhuang
Summary: In recent years, taste and odor (T&O) compounds in drinking water have become a serious problem, leading to challenges in drinking water treatment plants. Researchers have proposed various abiotic and biotic methods to ensure the quality of drinking water by removing T&O compounds. This review paper summarizes the process parameters, advantages and disadvantages, removal efficiency, and mechanism of these methods. It also provides a summary of the possible degradation pathways for geosmin (GSM) and 2-methylisoborneol (2-MIB), the most common odorous substances in drinking water. Furthermore, suggestions and approaches are given for efficient and safe strategies in treating T&O compounds and their future applications.
Review
Food Science & Technology
Jingya Qian, Di Chen, Yizhong Zhang, Xianli Gao, Ling Xu, Guoqiang Guan, Feng Wang
Summary: Ultrasound-assisted enzymatic hydrolysis is a green and efficient non-thermal processing technique that can significantly improve the efficiency of enzymatic hydrolysis and enhance the biological activity of substrates. It is mainly used for the extraction of bioactive substances and the degradation of biological macromolecules. More research on ultrasound-assisted enzymatic hydrolysis devices should be conducted in the future.
Review
Food Science & Technology
Feng Wang, Hui Xu, Miaomiao Wang, Xiaolei Yu, Yi Cui, Ling Xu, Anzhou Ma, Zhongyang Ding, Shuhao Huo, Bin Zou, Jingya Qian
Summary: This article provides a systematic review of the methods of enzyme immobilization and the use of immobilized supports in juice clarification. It gives detailed explanations of the mechanisms and effects of immobilized pectinase, immobilized laccase, and immobilized xylanase in fruit juice clarification. Suggestions and prospects for future studies in this area are also provided.
Article
Biotechnology & Applied Microbiology
Ling Xu, Qihui Su, Zhicai Zhang, Guoqiang Guan, Daming Huang, Norman Terry, Feng Wang
Summary: This study focused on extracellular saponin production through liquid fermentation of Tuber melanosporum with the addition of rutin. The optimal medium composition and culture conditions were determined, resulting in a significant increase in saponin content. Rutin was found to be an excellent promoter, enhancing saponin production effectively.
FERMENTATION-BASEL
(2021)
