Article
Biotechnology & Applied Microbiology
Savannah J. Volkoff, Daniel L. Rodriguez, David R. Singleton, Alexander W. McCumber, Michael D. Aitken, Jill R. Stewart, Claudia K. Gunsch
Summary: This study investigated the bacterial community of the Elizabeth River using both culture-based and culture-independent methods, and identified potential candidates for bioremediation of PAH contaminants. The results showed the presence of PAH-degrading bacteria in the sediment, and a divergence in the microbial community between highly contaminated and less contaminated sites. The study highlights the importance of both culture-based and culture-independent methods in identifying promising bacterial candidates for precision bioremediation.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Engineering, Environmental
Lige Zhang, Xiaoyu Qiu, Ling Huang, Jijun Xu, Weiwei Wang, Zhao Li, Ping Xu, Hongzhi Tang
Summary: The PDMC bacterial consortium efficiently degrades PAHs and demonstrates excellent stability in small-scale wastewater bioremediation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Shiyu Bao, Likun Zhao, Yuanwen Liu, Lewei Yang, Peng Liu, Chaoqi Chen, Xuhui Mao
Summary: In this study, a newly isolated strain, Aeromonas sp. BCP-3, was inoculated into contaminated soils to remove PAHs through slurry bioreactors. The removal efficiency of PAHs was significantly influenced by various factors, including aeration rate, water-soil mass ratio, stirring rate, temperature, and Tween-80 concentration. Under optimal conditions, 96.3 % and 97.2 % of initially spiked fluoranthene and pyrene were successfully removed within 12 days.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Rohi Masrat, Kowsar Majid
Summary: This study investigates the solubilization ability of mixed systems of polymers and surfactant micelles on PAHs. It is found that the addition of anionic polymers can accelerate the solubilization ability of cationic surfactant micelles, while delaying the solubilization ability of nonionic surfactant micelles. Additionally, the solubilization capacity of the mixed systems is enhanced as the polymer concentration increases within a certain range.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Abiram Karanam Rathankumar, Kongkona Saikia, Hubert Cabana, Vaidyanathan Vinoth Kumar
Summary: Remediation of persistent polycyclic aromatic hydrocarbons (PAHs) contaminated soil has become a major challenge in recent years. The application of surfactants along with wood assisted fungal system can enhance the PAHs remediation rate, and the addition of surface-active compounds can significantly increase enzyme production for degradation.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Chemical
Liang Shen, Yifang Liu, Jiabao Gong, Erle Qiao
Summary: The adsorption behavior of pyrene and seven types of surfactants on kaolinite surfaces was studied. The results showed that pyrene was more easily adsorbed on the 001 (-) side of kaolinite. Some surfactants had strong interactions with pyrene, forming aggregates. However, high concentration of surfactant inhibited pyrene desorption on the kaolinite surface.
Article
Biochemistry & Molecular Biology
Marta Roszak, Joanna Jablonska, Xymena Stachurska, Kamila Dubrowska, Justyna Kajdanowicz, Marta Golebiewska, Anna Kiepas-Kokot, Beata Osinska, Adrian Augustyniak, Jolanta Karakulska
Summary: This study aimed to isolate bacteria with bioremediation potential from soil contaminated with PAHs, develop an autochthonous microbial consortium, and evaluate their ability to degrade PAHs. The selected strains showed a high capacity for PAH degradation, with in vitro degradation reducing PAH content by over 99% after eight days. In situ bioremediation experiments resulted in a significant reduction of PAH concentration, highlighting the potential of the autochthonous microbial consortium in enhancing the bioremediation process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Environmental Sciences
Francesco Bianco, Marco Race, Stefano Papirio, Patryk Oleszczuk, Giovanni Esposito
Summary: Biochar is proposed as an innovative and sustainable technology for remediation of PAH-contaminated sediments, mainly through sorption mechanisms. The use of biochar can significantly improve the efficiency of PAH removal from sediments, especially when used in combination with multi-PAH systems and high dosages. Additionally, biochar has shown to decrease PAH degradation during bioaugmentation and phytoremediation of sediments, but can increase degradation when used with nitrate as an electron acceptor in low-temperature conditions.
Article
Environmental Sciences
Alberto Ferraro, Giulia Massini, Valentina Mazzurco Miritana, Antonio Panico, Ludovico Pontoni, Marco Race, Silvia Rosa, Antonella Signorini, Massimiliano Fabbricino, Francesco Pirozzi
Summary: This study proposed an innovative bioaugmentation approach for PAH contaminated soils based on a habitat-based strategy, testing two different inocula with specific functional roles. Results showed a successful bioaugmentation strategy with higher biodegradation rates and increased microbial diversity, supporting an integrated and environmentally sustainable bioremediation system.
Article
Engineering, Environmental
Haifeng Yan, Zaisheng Yan, Luming Wang, Zheng Hao, Juan Huang
Summary: Rhizodegradation using the submersed macrophytes Vallisneria natans shows potential for restoring polycyclic aromatic hydrocarbon (PAH)-contaminated sediments. This study found that different sediment types can influence the outcomes of rhizoremediation and the microbial communities along the sediment-V. natans continuum. V. natans presence was particularly effective in highly contaminated sites, influencing PAH rhizodegradation and microbial communities, especially in rhizosphere sediments. The microbial community structure along the sediment-plant continuum was primarily shaped by the niche of V. natans. Selective enrichment of specific microbial taxa like Herbaspirillum was observed in the endosphere of V. natans, which can use PAH as a carbon source and promote plant growth. Understanding the interactions between V. natans and microbes could help develop novel decontamination strategies based on rhizosphere and root interior interactions between plants and their microbial associates.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Filippo Dell'Anno, Leonardo Joaquim van Zyl, Marla Trindade, Emanuela Buschi, Antonio Cannavacciuolo, Milva Pepi, Clementina Sansone, Christophe Brunet, Adrianna Ianora, Donatella de Pascale, Peter N. Golyshin, Antonio Dell'Anno, Eugenio Rastelli
Summary: Petroleum hydrocarbons and heavy metals are widespread contaminants in marine ecosystems, and microbial-based bioremediation shows promise as an effective and sustainable solution. In this study, we enriched the microbiome of heavily polluted sediments and isolated two novel bacterial strains that exhibited high degradation of PAHs and removal of HMs, with the best results observed for naphthalene, pyrene, and lead. The genetic repertoire of these strains may be further utilized for bioremediation of marine environments contaminated with PAHs and HMs.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Chemical
Prisha Mandree, Wendy Masika, Justin Naicker, Ghaneshree Moonsamy, Santosh Ramchuran, Rajesh Lalloo
Summary: Polycyclic aromatic hydrocarbons (PAHs) are toxic and persistent organic compounds released from incomplete combustion of fossil fuel. Bacillus spp. has been shown effective in degrading hydrocarbons in polluted streams. A study identified potential Bacillus strains capable of remediating low and high molecular weight PAHs from soil, with prototype 2 containing Bacillus cereus and Bacillus subtilis strains showing the most effective biodegradation of PAHs.
Article
Environmental Sciences
Mukhtiar Ali, Xin Song, Da Ding, Qing Wang, Zhuanxia Zhang, Zhiwen Tang
Summary: This paper provides an in-depth review of the bioremediation of co-contaminated PAHs and heavy metals, examining their sources, transport, and the mechanisms and challenges of bioremediation under co-contaminated conditions. The paper also presents emerging strategies to overcome bioavailability problems and improve the effectiveness of bioremediation.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Meng Zhang, Bo Wu, Penghong Guo, Sa Wang, Shuhai Guo
Summary: An innovative superimposed electric field (SEF) was designed to achieve uniform removal of polycyclic aromatic hydrocarbons (PAHs) in soil, and it was found to effectively prevent large changes in soil pH, temperature, and electric current. The bioremediation efficiency showed no significant difference between SEF and the common electric field (CEF), but both SEF and CEF were more effective in promoting the degradation of PAHs by bacteria compared to bioremediation alone. Furthermore, the microbial community and removal efficiencies of different PAHs components varied with the distance from the electrodes, suggesting that further research is needed to understand the impact of SEF on soil properties.
Article
Microbiology
Filippo Dell'Anno, Eugenio Rastelli, Michael Tangherlini, Cinzia Corinaldesi, Clementina Sansone, Christophe Brunet, Sergio Balzano, Adrianna Ianora, Luigi Musco, Maria Rita Montereali, Antonio Dell'Anno
Summary: Coastal areas impacted by high anthropogenic pressures often have sediment contamination by PAHs and HMs. Microbial-based bioremediation may fail due to poor knowledge of local microbial communities, but this study identified bacteria with potential for bioremediation in highly contaminated sediments.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Astronomy & Astrophysics
Zhihua Wang, Liying Zhu, Kai Yuan
Summary: In this study, we analyzed the photometry of an EB-type totally eclipsing binary, 1SWASP J010313.78+352903.7, observed using the Xinglong 85 cm telescope. The results showed that it is a contact binary with a relatively low mass ratio, large fill-out factor, and a large temperature difference. The light curves exhibited asymmetric variations with a maximum variability of about 9%. A double-hot spots model on the surface of the cooler secondary adequately described these variations, indicating growing and evolving hot spots possibly caused by magnetic stellar activity and mass transfer. The large temperature difference between the contact components suggests a shared non-thermal equilibrium common envelope.
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
(2023)
Article
Engineering, Geological
Liping Zhu, Mingdong Li, Kejun Wen, Yukuai Wan
Summary: This study examined the dynamic shear strength characteristics of LCES and soft clay samples through dynamic triaxial tests. The results showed that the cement content significantly affects the dynamic strength of LCES, while the effect of EPS beads content on dynamic strength depends on the cement content. The dynamic shear strength of LCES increases with the increase of confining pressure.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Xiangyuan Wang, Yixuan Meng, Wei-Wei Huang, Linlin Li, Zhiwei Zhu, LiMin Zhu
Summary: This paper presents the design, modeling, and test of a novel normal-stressed electromagnetic (NSEA) compliant nano-positioning stage. The electromagnetic-mechanical modeling method introduced in this paper accurately predicts the working stroke and natural frequency of the NSEA compliant nano-positioning stage. Experimental results demonstrate the significantly higher prediction accuracy of this method compared to previous methods.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Chemistry, Analytical
Qiqi Chao, Yuxi Zhang, Qian Li, Luzhen Jiao, Xufeng Sun, Xuxu Chen, Lina Zhu, Qian Yang, Chengwen Shang, Rong-Mei Kong, Gao-Chao Fan, Zhi-Ling Song, Xiliang Luo
Summary: To accurately identify cancer cells, a logic-gate-assisted cancer imaging system has been developed. This system compares expression levels of biomarkers, improving accuracy for cell identification. It consists of a compute-and-release logic gate, a double-amplified DNA cascade circuit, and a MnO2 nanocarrier, enabling precise imaging of positive cancer cells.
ANALYTICAL CHEMISTRY
(2023)
Article
Physics, Applied
Qing Dai, Yuchen Miao, Xiaorong Qi, Zhenfu Zhao, Feiyu Zhao, Liqiang Zhu, Ziyang Hu
Summary: Ions or charged vacancies drift induced by electric fields in organic-inorganic halide perovskites contribute to resistive switching memory (RSM) devices. Two-dimensional (2D) OIHP films are used as the switching layer to fabricate RSM devices with stable and low voltage resistive switching characteristics. The addition of a NiOx hole transport layer enhances the reliability of RSM devices in atmospheric conditions.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Medicinal
Motoyasu Minami, Yukako Honda, Kaoru Ueno, Tetsuya Matsunaka, Junbo Wang, Liping Zhu, Akihito Takano, Takahisa Nakane
Summary: In the Yarlung Zangbo River Valley of the southeastern Tibetan Plateau, we discovered a community of Ephedra saxatilis plants in a xeric steppe with shrubland vegetation habitat. The soil in this area had higher levels of water-soluble cations and nitrogen. Analysis of 13 samples of E. saxatilis revealed variability in the content of ephedrine and pseudoephedrine, with some samples containing both compounds, some containing only ephedrine, and one sample containing only pseudoephedrine.
JOURNAL OF NATURAL MEDICINES
(2023)
Article
Astronomy & Astrophysics
Azizbek Matekov, Fangbin Meng, Shengbang Qian, Ildar Asfandiyarov, Linjia Li, Shuhrat Ehgamberdiev, Liying Zhu
Summary: We present new multi-color light curves of V1309 Her and AS CrB observed by the 60 cm telescope at the Maidanak Astronomical Observatory. The analysis of our BVRCIC light curves combined with atmospheric parameters revealed that both systems are low-mass-ratio overcontact binaries. The periodic oscillations in their O - C curves were found and could be explained by the light travel-time effect of the third bodies.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
(2023)
Article
Astronomy & Astrophysics
Chuqi Wu, Shengbang Qian, Fuxing Li, Miloslav Zejda, Zdenek Mikulasek, Liying Zhu, WenPing Liao, Ergang Zhao
Summary: Studying massive binaries in various stages of evolution or environments can provide insights into the evolution of these systems. This study focuses on the rarely studied binaries in the Small Magellanic Cloud (SMC), which has lower metallicity compared to our Milky Way. By analyzing the light curves, it was found that OGLE-SMC-ECL-2063 is a high mass ratio and overcontact binary in the SMC. The research on OGLE-SMC-ECL-2063 provides a basis for studying the formation and evolution of early-type contact binaries.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
(2023)
Article
Astronomy & Astrophysics
Linfeng Chang, Liying Zhu, Fangbin Meng
Summary: In this study, the periods of the W UMa contact binary systems HH UMa and V1175 Her were found to show cyclic variations, possibly due to a Light Travel Time Effect induced by a third body. The cyclic variation in HH UMa has a period of about 20 years and may be caused by a third body with a mass larger than 0.23 times the mass of the Sun. The period increase in V1175 Her, with a rate of about 2x10^(-7) days per year, indicates mass transfer from the less massive component to its companion.
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Qianru Zhao, Yingfeng Li, Bowen Shen, Quanyu Zhao, Liying Zhu, Ling Jiang
Summary: By using UiO-66 as a photocatalyst, the intracellular pool of reduced NADH was increased in Clostridium tyrobutyricum, resulting in higher butyrate production. This system improved the utilization rate of carbon sources and reduced carbon loss, providing an outstanding strategy for energy savings and emissions reduction.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Health Care Sciences & Services
Lihui Zhu, Na Zhang, Yaojia Hu, Yi Xu, Tingwei Luo, Yuqiong Xiang, Sishan Jiang, Zhiqiang Zhang, Muhua Chen, Yuee Xiong
Summary: This study investigated the knowledge, attitude, and behavior of pediatric healthcare workers regarding children's palliative care (CPC). The results showed that the overall level of knowledge, attitude, and behavior of the healthcare workers about CPC was moderate. Factors such as working years, highest education, professional title, job position, marital status, religion, grade of hospital, type of medical institution, experience of caring for a terminally ill child/kinsfolk, and total hours of CPC education and training received were found to influence CPC implementation and development. Therefore, it is important to emphasize continuous education and training for healthcare workers in CPC and to focus on the mentioned influencing factors to establish targeted training courses and evaluate post-training effects.
BMC PALLIATIVE CARE
(2023)
Article
Materials Science, Multidisciplinary
Zhi Wen Shi, Wei Sheng Wang, Ling Ai, Yan Li, Xin Li Chen, Hui Xiao, Yu Heng Zeng, Li Qiang Zhu
Summary: In this study, a mixed proton and electron conductor hybrid oxide neuromorphic transistor is proposed with the adoption of aqueous solution-processed mesoporous silica coating-based electrolyte as gate dielectric. The device exhibits optical and electrical synergetic coupling behaviors, showing typical synaptic responses and transition between short-term plasticity and long-term plasticity. Furthermore, it demonstrates interesting non-associative learning. The results indicate that the proposed MPEC hybrid oxide neuromorphic transistor has great potential in the field of neuromorphic engineering and could be applied in the bionic visual perception platform.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Fluids & Plasmas
Can Xu, Xin Jin, Yonggang Wu
Summary: The coupled phase oscillator model is widely used to understand collective dynamics in large ensembles of interacting units. This study investigates the impacts of heterogeneous strategies, correlation function, and natural frequency distribution on emergent dynamics using a variant of the Kuramoto model. An analytical treatment is developed to capture the essential properties of the equilibrium states.
Article
Materials Science, Biomaterials
Bowen Shen, Wenhan Li, Yuxian Wang, Shuyu Cheng, Xiaonan Wang, Liying Zhu, Yangheng Zhang, Lizeng Gao, Ling Jiang
Summary: Sulfur-containing nanomaterials, such as nano iron sulfide (nFeS), show great promise as nanodrugs for bacterial infection due to their antibacterial activity. However, the inorganic sulfur produced by nFeS can easily change its form or volatilize in aqueous solution, affecting its efficacy. To address this issue, we propose a novel strategy of encapsulating nFeS in a hydrogel to preserve the inorganic sulfides and enhance the interaction between nFeS and bacteria. Our study demonstrates that the nFeS-Hydrogel not only effectively maintains the antibacterial activity, but also exhibits reduced inflammation and excellent biocompatibility. It has great potential as a fast excipient for clearing infection, reducing inflammation, and accelerating wound healing.
BIOMATERIALS ADVANCES
(2023)
Article
Environmental Sciences
Manping Liu, Zhu Li, Simin Li, Fang Liang, Chengwang Huang, Hui Pan, Jie Wu, Siyao Liu, Limin Pu, Peter Christie, Jing Song, Paul Henning Krogh, Xin Ke, Yongming Luo, Longhua Wu
Summary: Soil pollution poses a threat to soil biodiversity and human health, but there are still many unknowns about the impact of heavy metal pollution on soil mite communities and their distribution in areas with complex environmental factors.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)