Article
Engineering, Environmental
Zuotao Zhang, Jiao Sun, Xiaoqiang Gong, Chongyang Wang, Hui Wang
Summary: A new sulfate-reducing bacterium, Desulforamulus aquiferis strain DSA, was found to degrade high molecular weight polycyclic aromatic hydrocarbons (HMW-PAHs) pyrene and benzo[a]pyrene, while reducing sulfate to sulfide. The metabolic processes for anaerobic pyrene and benzo[a]pyrene degradation were proposed based on detecting intermediates and analyzing the genome. This study provides new guidance for anaerobic HMW-PAHs degradation under sulfate-reducing conditions.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Xingchen Dong, Siyi Wu, Zihuan Rao, Yaqian Xiao, Yan Long, Zhixiong Xie
Summary: Polycyclic aromatic hydrocarbons (PAHs) are common carcinogens, and benzo(a)pyrene is one of the most difficult high-molecular-weight (HMW) PAHs to remove. Biodegradation has been considered an ideal method for PAH pollutant elimination, but research on HMW PAHs, especially benzo(a)pyrene, is limited. This study focuses on the highly efficient benzo(a)pyrene-degrading strain BaP3, aiming to elucidate its high degradation efficiency mechanism and contribute to the understanding of the degradation mechanism of highly toxic PAHs and provide new solutions for practical applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Xiaoxue Zhang, Xiaomin Wang, Yan Li, Guohui Ning, Qian Zhang, Xuena Zhang, Wei Zheng, Zhixin Yang
Summary: This study compared the biosorption, transmembrane transport, and biodegradation of Pyr and BaP by Bacillus sp. strain M1. The results showed that BaP had a higher biosorption efficiency and reached peak adsorption efficiency faster than Pyr. Both Pyr and BaP entered the cells by passive transport. In terms of biodegradation, BaP had a significantly higher efficiency than Pyr around days 5-7 of culture. Key enzymes involved in BaP and Pyr degradation were identified.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Chemistry, Multidisciplinary
Jingnan Jin, Yahui Shi, Baozhong Zhang, Dongjin Wan, Qingye Zhang, Ying Li
Summary: In this study, a BaP-degrading strain Pannonibacter sp. JPA3 was isolated from oil well production water, which could remove 80% of BaP at an initial concentration of 100 mg L-1 after 35 days of culture. The metabolites BaP-4,5-dihydrodiol, BaP-4,5-epoxide, 5-hydroxychrysene, and 2-hydroxy-1-naphthoic acid were identified in the biodegradation process. A dioxygenase model was built and molecular docking was performed to investigate the interaction mechanism between BaP and dioxygenase. A hypothesis for the progressive degradation mechanism of BaP by this strain was proposed based on the identification of downstream metabolites. In conclusion, this study provided an efficient BaP degrader and a comprehensive reference for the study of degradation mechanisms at the molecular level.
Article
Environmental Sciences
Qingxue Leng, Jun Mu, Guangfeng Yang
Summary: This study established highly efficient systems for anaerobic degradation of benzo[a]pyrene and identified the promoting effect of co-solvent and co-metabolic effect. The removal rate of benzo[a]pyrene at high concentrations was influenced by the co-solvent and co-metabolic effects.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Claire Baranger, Isabelle Pezron, Laurence Lins, Magali Deleu, Anne Le Goff, Antoine Fayeulle
Summary: Hydrophobic organic soil contaminants like PAH are poorly mobile in soil and filamentous fungi are efficient in degrading them, but the mechanism of their mobilization needs further investigation. A microfluidic device was designed to study the uptake of BaP by fungi, revealing the uptake and storage mechanisms as well as the release of surface-active compounds.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
M. J. Bebianno, Vera M. Mendes, Sarit O'Donovan, Camila C. Carteny, Stephen Keiter, Bruno Manadas
Summary: This study investigates the effects of low-density polyethylene microplastics on the gill proteome of the peppery furrow shell clam. The results suggest that microplastics can cause disturbance in cell structure and metabolism, increasing the toxicological risk for the clam. When microplastics are adsorbed with benzo[a]pyrene, more protein expression differentiation and apoptosis are observed, posing a higher threat to the health of the clam.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Oumayma Kahla, Sondes Melliti Ben Garali, Fatma Karray, Manel Ben Abdallah, Najwa Kallel, Najla Mhiri, Hatem Zaghden, Badreddine Barhoumi, Olivier Pringault, Marianne Quemeneur, Marc Tedetti, Sami Sayadi, Asma Sakka Hlaili
Summary: The efficiency of a benthic diatom-associated bacteria in removing BaP and Flt was investigated in this study. Results showed a co-metabolic synergy between microalgae and associated bacteria in biodegrading PAHs, suggesting their potential application in the bioremediation of contaminated sites.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Mukhtiar Ali, Xin Song, Qing Wang, Zhuanxia Zhang, Meng Zhang, Xing Chen, Zhiwen Tang, Xin Liu
Summary: In this study, it was found that the biodegradation rates of benzene and BaP co-contamination were significantly enhanced at elevated temperatures, with increased bioavailability and generation of ROS. The study also revealed that gram-positive bacteria exhibited higher enzymatic activities and PAH-RHD alpha gene expression, indicating their preference for long-term elevated temperatures. ROS species (O(2)(center dot-)and center dot OH) were detected and cleared by increased antioxidant enzyme activities. Soil properties were affected by temperature treatments, indicating metal-organic-associated reactions during TEB. Overall, the results highlight the importance of temperature in enhancing biodegradation under thermally enhanced biodegradation conditions.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Shanshan Feng, Yanwei Li, Ruiming Zhang, Qingzhu Zhang, Wenxing Wang
Summary: Polycyclic Aromatic Hydrocarbon (PAHs) is a common class of environmental pollutants. A recent study found that a lab-synthesized derivative of PAHs can selectively kill cancer cells. However, the metabolic process and selectivity of P450 catalyzed PAHs activation is not well understood. This study systematically investigated the activation mechanism of a representative PAHs, benzo[a] pyrene (BaP), by P450 enzymes, and identified the involvement of electrophilic addition and epoxidation steps. The selectivity was attributed to the structural and electrostatic parameters of both BaP and P450.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Manasa Muralidharan, R. Kavitha, P. Senthil Kumar, M. Pooja, Revathy Rajagopal, K. Veena Gayathri
Summary: The key source of Benzo[a]pyrene (B[a]P) and other Polyaromatic hydrocarbons (PAH) is partial ignition of crude oil and its by-products, posing a great threat to the environment. It is necessary to find ways to degrade these toxic chemicals using physicochemical techniques.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Food Science & Technology
Shuangmin Wu, Huaming Li, Xiaoyang Yin, Yu Si, Liangni Qin, Hongfei Yang, Jiaxu Xiao, Dapeng Peng
Summary: An indirect competitive enzyme-linked immunoassay (ic-ELISA) was established to detect PYR and BaP residues in living aquatic products for the first time, with high sensitivity and accuracy.
Article
Environmental Sciences
Zhihui Qian, Tao Peng, Tongwang Huang, Zhong Hu
Summary: In this study, a strain of Pontibacillus sp. HN14 with the ability to degrade BaP was isolated from mangrove sediments in Hainan Province. It was found that CYP102(HN14) played a crucial role in the degradation of BaP. This study is the first to demonstrate the BaP oxidization ability of CYP102(HN14) in bacteria, providing a new approach for BaP bioremediation under high salinity conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Nutrition & Dietetics
Chong Wang, Fan Zhao, Yun Bai, Chunbao Li, Xinglian Xu, Karsten Kristiansen, Guanghong Zhou
Summary: In this study, we evaluated the protective effects of six polyphenols on BaP-induced cytotoxicity in Caco-2 cells. Our results showed that eriodictyol was superior to naringenin in protecting against BaP-induced toxicity. Proteomics analysis revealed several key proteins involved in the protective mechanisms of eriodictyol.
FRONTIERS IN NUTRITION
(2022)
Article
Environmental Sciences
Xueqin Lu, Ting Luo, Xi Li, Yaxuan Wang, Yongsong Ma, Bing Wang
Summary: The combination of pre-ozonation and bioaugmentation shows promise in remediating BaP-contaminated soil. This study developed two coupling remediation strategies and compared them with sole ozonation and sole bioaugmentation. Results showed that the coupling remediation had higher removal efficiency of BaP and significantly reduced soil biotoxicity, promoting the recovery of microbial activity and community structure. The addition of activated sludge was found to be more conducive to the recovery of soil microbial communities and diversity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Mechanical
Chenyu Zhou, Liangyao Yu, Yong Li, Jian Song
Summary: This paper proposes a robust sideslip angle observer for commercial vehicles based on the identification of tire cornering stiffness. The estimation algorithm uses a neural network model and a time-varying Kalman filter to accurately estimate the sideslip angle. The proposed method is validated through driving maneuvers, showing better accuracy and robustness compared to existing algorithms.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2023)
Article
Clinical Neurology
Junyu Li, Han Xiao, Shuai Jiang, Zexi Yang, Zhongqiang Chen, Xiaoguang Liu, Zhongjun Liu, Feng Wei, Liang Jiang, Chuiguo Sun, Fengliang Wu, Zhaoqing Guo, Jing Li, WeiShi Li, Miao Yu
Summary: This retrospective cohort study analyzed long-term follow-up data of 113 patients with adult degenerative scoliosis who underwent posterior corrective surgery. The study identified age over 55 years old and higher postoperative thoracic kyphosis as important risk factors for proximal junctional kyphosis (PJK). Additionally, postoperative thoracic kyphosis mismatch was found to be an independent risk factor for developing PJK. Three predictive models were effective in indicating the occurrence of PJK.
GLOBAL SPINE JOURNAL
(2023)
Article
Materials Science, Ceramics
Liang Chen, Fubin Liu, Jing Sui, Geoffrey I. N. Waterhouse, Zhi-Ming Zhang, Liang-min Yu
Summary: Dual heteroatom-doped carbon materials were synthesized via direct carbonization of polypyrrole synthesized in the presence of H3PO4, H3BO3, or H2SO4. The heteroatom content of the materials could be precisely controlled by varying the amount of acid dopant used. The N,X-C materials exhibited excellent electromagnetic wave absorption properties, with N,S1-C offering a wide absorption bandwidth up to 6.6 GHz and a RLmin of -32.3 dB at 2.5 mm and a filler loading of 9.0 wt%.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Jian Wang, Zheng Jiang, Ran Ma
Summary: Wastewater contaminated by radionuclides is a significant environmental concern that poses a threat to human health. In this study, beta-cyclodextrin modified molybdenum disulfide was investigated as an adsorbent to remove europium from aqueous solutions. The experimental results indicated that the adsorption of Europium(III) relied on pH and temperature. The Langmuir model better described the removal process, which was found to be a monolayer adsorption. The adsorption capacity of beta-CD-MoS2 for Europium(III) reached 107.1 mg/g and the adsorption process was endothermic. The surface hydroxyl groups controlled the retention of Europium(III). These findings provide important information for environmental pollution control and the elimination of Europium(III).
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Engineering, Mechanical
Dequan Yang, Hui Qin, Xiling Xie, Zhiyi Zhang
Summary: This paper investigates an auxiliary active magnetic bearing for suppressing the lateral vibration at the stern support of a shafting system. A dynamic model is established and the performance of the active magnetic bearing in vibration suppression is evaluated. Experimental results show that the active magnetic bearing is able to effectively suppress the stern support acceleration responses and control the orbit of the shaft center.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Optics
Guanqu Hu, Shixiong Yan, Wancheng Liu, Qigui Huang, Bing Bai, Fengli Liu, Xinlu Zhang, Li LI
Summary: The dual-wavelength paired-pulse output of a compact self-Q-switched Tm:YAlO3 intra-cavity pumping Ho:LuLiF4 laser was successfully demonstrated experimentally. The paired pulses were generated using the self-Q-switching mechanism of Tm:YAlO3 and the gain-switching operation of Ho:LuLiF4 in a cavity. This compact dual-wavelength paired-pulse laser has potential application in differential absorption lidar.
Article
Agronomy
Tongyue Zhang, Mengyang Hou, Liqi Chu, Lili Wang
Summary: Promoting agricultural sustainable development is crucial, and enhancing agro-ecological efficiency (AEE) is the key. Through analyzing inter-provincial panel data from 2003-2017, a super-efficient SBM model was used to measure AEE. The impact of investment scale and structure on AEE was examined, and an optimal proportion of government expenditure was found. A spatial econometric model was constructed to test the spatial spillover effect. The results showed that China's AEE is on the rise overall, but there is room for improvement. Investment scale has a negative impact on AEE due to inefficient fund use, while investment structure has an inverted N relationship with AEE, with an optimal proportion of government fund investment structure at 76.71%. Consideration of spatial effects showed that ACD's impact remains robust, with a positive spillover effect starting in the 2nd year after investment. Ensuring investment scale, reducing financial redundancy, establishing cooperation with neighboring areas, and increasing private capital can achieve sustainable agricultural development.
Article
Environmental Sciences
Enhui He, Ning Liu, Yu Zhou, Zheng Wang, Xiaolan Lu, Liangmin Yu
Summary: This study successfully prepared cross-linkable zinc acrylic nanosphere aggregates (NAs) as precursors in a simple one-step synthesis route, and obtained Zn,O dopped-carbon nanocomposites through temperature-controllable engineering, which exhibited excellent adsorption capacities for perfluorooctanoic acid (PFOA). A series of experiments were conducted to investigate and compare carbon materials for efficient PFOA removal. The Langmuir (360.98 mg/g) and Sips models (309.65 mg/g) estimated the maximum adsorption capacities of PFOA on carbon nanospheres aggregates (CNAs). The adsorption process involved chemical and physical adsorption, with the dominant mechanisms being Van der Waals force and electrostatic interactions, and pore-filling also playing a role. The adsorption efficiency remained above 90% after five cycles and the CNAs showed selective adsorption ability for various pollutants, indicating their potential as outstanding adsorption materials for PFOA decontamination from wastewater.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Luisa Prates, Daniel Karthe, Lulu Zhang, Lili Wang, Jack O'Connor, Halim Lee, Christina Dornack
Summary: The transition from fossil-fuel-based internal combustion vehicles to electric vehicles is crucial for reducing carbon emissions from road transport and addressing climate change. However, it is important to consider both the environmental benefits and potential side effects of this transition. With the expected increase in the electric vehicle fleet, managing end-of-life batteries and their chemical substances poses challenges for waste management, environmental and human health impacts.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Environmental Sciences
Zhouyun Xie, Ni Zhang, Guojing Yang, Qiuxiang Xu, Dongbo Wang, Li Tang, Jingfen Xia, Ping Li, Xiaoming Li
Summary: This study investigated the impact of perfluorooctanoic acid (PFOA) on the formation of aerobic granular sludge (AGS). The results showed that 0.1 mg/L PFOA delayed the formation of AGS and affected the nutrient removal efficiency of the reactor. Microbial analysis revealed changes in the abundance of certain bacterial groups, but overall, AGS maintained its structure and functions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Xinqi Wang, Xiaoli Wang, Jing Qi, Shuhan Gong, Chong Wang, Li Li, Lin Fan, Hang Liu, Yun Cao, Mengmeng Liu, Xu Han, Liqin Su, Xiaoyuan Yao, Mats Tysklind, Xianliang Wang
Summary: Serious PAHs pollution was found in residential dust in eight cities across China, mainly from biofuel combustion. The concentrations of PAHs in residential dust exceeded acceptable levels, and the combustion processes and automobile exhaust emissions were identified as the main sources. Indoor air environmental factors, household characteristics, and residents' behavioral lifestyles may affect the concentration of PAHs in residential dust.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Automation & Control Systems
Ruijun Chen, Jin Wang, Liang-Chih Yu, Xuejie Zhang
Summary: Artificial emotional intelligence (AEI) is crucial for intelligent systems, and representing emotional states as continuous sentiment intensity enables more precise sentiment application. However, existing variational autoencoder methods face challenges in distinguishing emotional information from semantic information. To address this, we propose a decoupled VAE with interactive attention that extracts and maps sentiment intensities into the latent space using sentiment decouplers and embeddings.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
Article
Materials Science, Multidisciplinary
Liying Xue, Enhui He, Da Wang, Liangmin Yu, Xuefeng Yan
Summary: In this study, Zn, N, O-doped microspheres precursors were synthesized using a one-pot method and Zn, N, O-doped carbon composites (ZnO/N-CNs) were obtained by heating the precursors in an Ar atmosphere. The electromagnetic wave absorption (EMWA) performances of the composites were modified by changing the calcination temperature of the precursors. The ZnO/N-CNs calcined at 700°C showed outstanding EMWA properties, making it possible to mass-produce new N-doped carbon-based composites with effective EMWA performance, and providing a practical method for creating dielectric wave-absorbing composites with excellent all-around performances.
Article
Hematology
Chuanyang Lu, Qiuni Chen, Jiaxin Li, Chunling Wang, Liang Yu
Summary: This study investigated the correlation between lymphocyte to monocyte ratio (LMR) and Myelodysplastic Neoplasms (MDS), and found that LMR could serve as a potential prognostic indicator in MDS patients.
Article
Clinical Neurology
Yinglun Tian, Nanfang Xu, Ming Yan, Jinguo Chen, Kan-Lin Hung, Xiangyu Hou, Shenglin Wang, Weishi Li
Summary: The study aims to clarify the anatomical relationship between the internal carotid artery (ICA) and the bony structures of the craniovertebral junction in sandwich atlantoaxial dislocation (AAD) patients, and analyze the risks of injury during surgical procedures. The results indicate the importance of paying attention to the position of the ICA during surgery to prevent injury. This study is crucial for surgical safety and prevention of potential risks.
ACTA NEUROCHIRURGICA
(2023)
