Article
Chemistry, Physical
Natercia C. T. Martins, Sara Fateixa, Tito Trindade
Summary: In this study, hydrophobic paper-based SERS substrates with high reproducibility and uniformity were fabricated by inkjet printing Ag colloidal nanoparticles (NPs) on office paper pre-treated with chitosan (CH) or N,N,N-trimethyl chitosan (TMC). Coating the paper with these biopolymers substantially improved the SERS performance of the paper substrates. Crystal violet (CV) 100 µM was used as a molecular probe, and an increase of about 9-fold and 7-fold in the observed SERS intensity was observed when the papers were coated with CH and TMC, respectively. The coated substrates also showed improved reproducibility compared to non-coated office paper.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Analytical
Wenyu Huang, Chao Guo, Jingying Zhai, Xiaojiang Xie
Summary: This study demonstrates the development of fluorescence anisotropic ion-selective optodes based on homoFRET, which can be effectively used for ion concentration detection and bioimaging.
ANALYTICAL CHEMISTRY
(2022)
Review
Engineering, Environmental
Pankaj Bhatt, Satish Chandra Pandey, Samiksha Joshi, Parul Chaudhary, Vinay Mohan Pathak, Yaohua Huang, Xiaozhen Wu, Zhe Zhou, Shaohua Chen
Summary: Growing human interference has led to an increase in both organic and inorganic contaminants, posing a threat to ecosystems. Removing these toxic pollutants from the environment is challenging. Bioremediation combined with nanotechnology shows promise as a cost-effective method for pollutant removal. Nanomaterials have exceptional properties, such as improved catalysis and adsorption, making them of great interest. By using microbial cultures and nanomaterials, the bioremediation of toxic compounds can be facilitated. Understanding the relationship between microorganisms, contaminants, and nanoparticles is crucial. This review focuses on the removal of toxic pollutants through the combined effects of nanoparticles and microbial technology, highlighting the significance and contribution of this novel nanobioremediation technique to sustainability.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Karanpal Singh, Nancy, Gurjinder Singh, Jagpreet Singh
Summary: Groundwater pollution is mainly caused by the overuse of fertilizers, pesticides, contemporary agricultural practices, anthropogenic activities, home waste disposal, and the rapid expansion of the chemical industry. Drinking contaminated water regularly can have negative effects on human health and the environment. Nanoparticles (NPs) have been found to be the most efficient, cost-effective, and reliable strategy for alleviating contamination. In this study, ZnO NPs were synthesized using citrus limon leaves extract as a sustainable and cost-effective method. Microscopic and spectroscopic studies confirmed the formation of spherical ZnO NPs with a size range of 15-25 nm. ZnO NPs demonstrated photocatalytic degradation of Reactive green-19 (RG-19) under direct solar irradiation (degradation efficiency of approximately 92%, rate constant of 0.03 min-1, 80 min) and substantial antibacterial action against pathogenic Gram-positive (Bacillus subtilis, clearance zone: 8.6 mm) and Gram-negative (Escherichia coli, clearance zone: 9.8 mm) bacteria. This study proves the effectiveness and sustainability of NP-based water remediation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Yu Liu, Qixuan Zhong, Panpan Xu, Heqin Huang, Fan Yang, Muhan Cao, Le He, Qiao Zhang, Jinxing Chen
Summary: Solar thermal catalysis is a highly efficient and eco-friendly method for extracting value-added products from end-of-life plastics. It has the advantage of low energy consumption and carbon emissions compared to traditional thermal catalysis methods.
Article
Chemistry, Multidisciplinary
Leslie Velasco, Tianhong Ouyang, Bjoran M. Reinhard
Summary: A two-color interferometric scattering detection scheme using 405 nm and 445 nm wavelengths was used to characterize and distinguish Ag nanoparticles of different sizes. The detection also depends on the ambient refractive index, with a spectral red-shift observed for 40 and 60 nm Ag nanoparticles as the refractive index increased. However, the spectral resolution of the two-color imaging strategy was insufficient to resolve spectral shifts induced by refractive index changes for 10 and 20 nm Ag nanoparticles.
Article
Environmental Sciences
Ghulam Mujtaba, Syed Jawad Hussain Shahzad
Summary: The study found a positive relationship between renewable energy and healthcare spending, with investment in renewable energy helping to reduce air pollution, improve healthcare conditions, and promote economic growth.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Chemistry, Physical
Huaiqing Luo, Pengwei Li, Junjie Ma, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: This article discusses the issues related to Pb-based perovskite solar cells, such as the toxicity and leakage of lead, and their impact on the environment. It also proposes strategies to address these issues, including inhibiting Pb leakage and achieving Pb recycling and sustainable utilization.
ADVANCED ENERGY MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Suppanat Puangpathumanond, Qiming Qiu, Tedrick Thomas Salim Lew
Summary: Living plants can be engineered into sustainable biomaterials with unique capabilities through plant nanobionics, wearable technologies, and plant synthetic biology. These methods allow the introduction of nonnative functionalities, the use of plants as sensors and energy harvesters, and the programming of user-defined functionalities in response to specific stimuli.
Review
Green & Sustainable Science & Technology
Fanning Meng, Jiayu Bi, Jiarun Chang, Guiqiang Wang
Summary: To date, laboratory-scale perovskite solar cells (PSCs) have achieved a certified efficiency of 25.7%. There have been continuous breakthroughs in the commercialization of PSCs. The recovery of decommissioned devices related to commercialization is urgent due to the environmental and health risks associated with lead and other materials in PSCs. Recycling and reusing useful materials from decommissioned PSCs can bring environmental and economic benefits, including cost reduction, energy saving, and conservation of natural resources. Overall, this review summarizes the structures and key materials of PSCs, analyzes the benefits of recycling, and discusses research progress and future opportunities for sustainable development.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Review
Chemistry, Analytical
Galal Magdy, Eman Aboelkassim, Shymaa M. Abd Elhaleem, Fathalla Belal
Summary: This article reviews the distinct physicochemical, biological, and antimicrobial characteristics of silver nanoparticles (Ag-NPs) and their extensive applications in various fields. The synthesis methods and characterization techniques of Ag-NPs are comprehensively discussed, and the current challenges and future trends are explored. This review serves as a comprehensive resource with significant importance in advancing related research and developments.
MICROCHEMICAL JOURNAL
(2024)
Review
Environmental Sciences
Mingjing He, Zibo Xu, Deyi Hou, Bin Gao, Xinde Cao, Yong Sik Ok, Jorg Rinklebe, Nanthi S. Bolan, Daniel C. W. Tsang
Summary: This review discusses the application of biochar in municipal wastewater treatment, industrial wastewater decontamination, and stormwater management. Biochar can be engineered to target specific contaminants in industrial wastewater treatment and enhance processes in municipal wastewater treatment and stormwater management. The scalability and commercialization of biochar production need to be investigated to maximize environmental, societal, and economic benefits.
NATURE REVIEWS EARTH & ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Taner Guney
Summary: Solar energy has a positive impact on sustainable development, while non-renewable energy has a negative impact. Prioritizing solar energy can increase the level of sustainable development and make it easier for countries to achieve the 2030 Sustainable Development Goals set by the United Nations.
INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY
(2022)
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: Wind and solar energy systems are compared with a hydrogen energy system to meet the needs of remote communities. The study finds that a combination of wind farm, floating photovoltaic plant, and bifacial photovoltaic plant with electrolyzer, fuel cell, and heat pump integration can reduce the cost of electricity generation.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Environmental Sciences
Wenqing Xie, Guiping Ren, Jiqiang Zhou, Zunzhuang Ke, Kanghui Ren, Xu Zhao, Ye Wang
Summary: In this study, a solar cell-soil microbial fuel cell (SC-SMFC) was constructed to improve the performance of the system using clean energy. The 2.0V SC-SMFC showed superior performance in phenol degradation rate and concentration limit, providing a green, low-cost, and convenient method for soil remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Kalyani Sen, Mohan Bai, Biswarup Sen, Guangyi Wang
Summary: This study investigated the composition, guilds, and metabolic potential of mycoplankton communities in contrasting marine environments. It found that trophic status played a major role in determining the abundance of mycoplankton, with different fungal taxa dominating different sites. Environmental factors such as temperature, pH, and chlorophyll-a were strongly associated with spatial diversity patterns. The study broadens the understanding of taxonomic and metabolic repertoire of marine mycoplankton and shows how they are influenced by site-scale environmental heterogeneity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Medicinal
Biswarup Sen, Jiaqian Li, Lyu Lu, Mohan Bai, Yaodong He, Guangyi Wang
Summary: This study analyzed the cell volume and elemental content of seven cultured thraustochytrids from different marine habitats during exponential and stationary growth phases. The results showed significant variations in cell volume and elemental composition among isolates, with higher C and H percentages in the stationary phase. The study provides evidence of higher cell C density in thraustochytrids than previously estimated, indicating a relatively larger C contribution to the marine organic pool compared to bacteria.
Article
Chemistry, Medicinal
Sai Zhang, Xiaohong Chen, Biswarup Sen, Mohan Bai, Yaodong He, Guangyi Wang
Summary: Species of Schizochytrium are well known for their ability to produce lipids intracellularly. In this study, seven different natural antioxidants were evaluated for their effects on lipid accumulation in Schizochytrium sp. PKU#Mn4. Mannitol showed the best increment in total fatty acids concentration, with interactions between mannitol and ascorbic acid resulting in increased saturated and polyunsaturated fatty acids concentrations. This study provides insights into strategies for improving lipid accumulation in thraustochytrids using exogenous antioxidants and the underlying mechanisms.
Article
Chemistry, Medicinal
Mohan Bai, Biswarup Sen, Shuai Wen, Huike Ye, Yaodong He, Xiaobo Zhang, Guangyi Wang
Summary: This study reveals the considerable diversity and lipid profile of thraustochytrids in the coastal waters of Qingdao, China, and highlights the influence of seasons and habitats on their culturable diversity and fatty acid profiles.
Article
Biochemistry & Molecular Biology
M. Kashif Ali, Biswarup Sen, Yaodong He, Mohan Bai, Guangyi Wang
Summary: The effects of mannitol and biotin on the squalene production of a thraustochytrid strain were investigated. Mannitol supplementation resulted in the highest squalene concentration and yield, while biotin supplementation also showed positive effects. Additionally, both supplements helped alleviate oxidative stress during the culture of thraustochytrids.
Article
Microbiology
Aiqing Zhang, Yaodong He, Biswarup Sen, Weijun Wang, Xin Wang, Guangyi Wang
Summary: This study reveals the effects of an optimal concentration of NaCl on squalene production and transcriptome of Thraustochytrium sp. ATCC 26185. The results showed that the optimal culture conditions significantly increased squalene yield, with NaCl identified as the most significant factor. Comparative transcriptomics revealed that NaCl influenced the expression of key metabolic genes, potentially leading to increased squalene production.
FRONTIERS IN MICROBIOLOGY
(2022)
Review
Microbiology
Kalyani Sen, Biswarup Sen, Guangyi Wang
Summary: In recent years, there has been significant progress in the study of planktonic fungi in the marine water column, revealing their diversity and abundance. These fungi are sensitive to environmental gradients and play important roles in biogeochemical cycling and food web dynamics through their saprotrophic and parasitic attributes. However, their function in the open-ocean water column is still poorly understood.
Article
Chemistry, Medicinal
Xiaohong Chen, Yaodong He, Lu Liu, Xingyu Zhu, Biswarup Sen, Guangyi Wang
Summary: This study investigated the effects of nitrogen starvation on fatty acid production in the thraustochytrid strain Aurantiochytrium sp. PKU#SW8. The results showed that nitrogen starvation increased the yields of both unsaturated and saturated fatty acids, but the increase in saturated fatty acids was disproportionately higher. The upregulation of fabD, enoyl-CoA hydratase, and pfaB genes under nitrogen starvation likely contributed to the increased fatty acid production. This study improves our understanding of the molecular mechanisms underlying the response of thraustochytrids to nitrogen deprivation.
Article
Environmental Sciences
Xiuping Liu, Ningdong Xie, Jiaqian Li, Mohan Bai, Biswarup Sen, Guangyi Wang
Summary: This study provides insights into the influence of upwelling on bacterioplankton at the whole community level and predicts their potential functional profiles. It reveals the impacts of upwelling on the bacterial community composition, metabolic functions, and microbial interactions, which are significant to further understanding the carbon sink effects of upwelling.
Article
Environmental Sciences
Jianyang Li, Chunming Dong, Biswarup Sen, Qiliang Lai, Linfeng Gong, Guangyi Wang, Zongze Shao
Summary: This study reports the microbial mineralization of terrigenous organic matter (TOM) in the deep sea by Vibrio bacteria, which have the potential to degrade lignin and xylan. The bacteria were found to possess diverse peroxidases and anaerobic respiratory mechanisms. This is the first report on the lignin oxidation mechanisms in Vibrio and their role in TOM mineralization in both anoxic and oxic environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Xiuping Liu, Lu Lyu, Jiaqian Li, Biswarup Sen, Mohan Bai, Jason E. Stajich, Jackie L. Collier, Guangyi Wang
Summary: This study reports high-quality genomes of two newly isolated Labyrinthulomycetes strains and investigates their ecological functions from the perspective of organic matter degradation using comparative genomics and biochemical assays. The results show that Labyrinthulomycetes may occupy multiple ecological niches in marine ecosystems and can actively participate in marine biochemical cycles as decomposers. The study also emphasizes the dual roles of endoglucanase in the process of cellulose degradation.
MICROBIOLOGY SPECTRUM
(2023)
Article
Chemistry, Medicinal
Yaodong He, Xingyu Zhu, Yaodong Ning, Xiaohong Chen, Biswarup Sen, Guangyi Wang
Summary: The study shows that the thraustochytrid strain Aurantiochytrium limacinum PKU#Mn4 can utilize Enteromorpha hydrolysate to produce high-value fatty acids through fermentation, with a significantly higher content of polyunsaturated fatty acids compared to glucose medium. This suggests that Enteromorpha hydrolysate has the potential to be used as a natural substrate for the fermentative production of high-value fatty acids.
Article
Environmental Sciences
Jing Song, Xiuping Liu, Ningdong Xie, Jiaqian Li, Xianhua Liu, Biswarup Sen, Guangyi Wang
Summary: This study investigated the abundance, diversity, and community structure of heterotrophic protists known as Labyrinthulomycetes protists (LP) in the coastal zone of Hainan Island in the South China Sea. The results showed variations in LP abundance by location and depth, with the highest levels found in the middle layer offshore and the lowest in the bottom layer offshore. The LP community was dominated by the genus Aplanochytrium, and four different ecotypes were identified. These findings contribute to our understanding of LP in coastal ecosystems and raise questions about their potential ecological differentiation.
Article
Biochemistry & Molecular Biology
Memon Kashif Ali, Xiuping Liu, Jiaqian Li, Xingyu Zhu, Biswarup Sen, Guangyi Wang
Summary: This study investigated the effects of different concentrations of bioactive compounds on the culture of Aurantiochytrium sp. TWZ-97 and found that alpha-tocopherol was the most effective compound in reducing reactive oxygen species (ROS). Supplementing with 0.7 g/L of alpha-tocopherol led to significant improvements in biomass and squalene production, and gene expression analysis suggested its role in regulating metabolic pathways and reducing ROS levels. These findings demonstrate the potential of alpha-tocopherol supplementation for enhancing squalene production in Aurantiochytrium sp. TWZ-97 culture.
Article
Microbiology
Jiaqian Li, Xiuping Liu, Ningdong Xie, Mohan Bai, Lu Liu, Biswarup Sen, Guangyi Wang
Summary: The consequences of climate change can have direct or indirect impacts on the marine biosphere. The effects of ocean stratification on marine microbes in the Indian Ocean, particularly in the equatorial eastern region, are largely unknown. This study investigates the effects of water stratification on hydrogeographic parameters and bacterioplankton diversity in the equatorial eastern Indian Ocean, revealing strong stratification in the upper 200m and its impact on the structure and diversity of bacterioplankton. The findings suggest that stratification can extend its effects to deeper waters in the equatorial EIO.