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1. Biotechnological Advances in Bacterial Microcompartment Technology

Author:
Lee, Matthew J.; Palmer, David J.; Warren, Martin J.
Source:
Trends in biotechnology 2019 v.37 no.3 pp. 325-336
ISSN:
0167-7799
Subject:
toxic substances,   etc   ; bacteria; enzymes; proteins;     Show all 4 Subjects
Abstract:
... Bacterial microcompartments (BMCs) represent proteinaceous macromolecular nanobioreactors that are found in a broad range of bacteria, and which are associated with either anabolic or catabolic processes. They consist of a semipermeable outer shell that packages a central metabolic enzyme or pathway, providing both enhanced flux and protection against toxic intermediates. Recombinant production of ...
DOI:
10.1016/j.tibtech.2018.08.006

2. High‐speed display‐delayed planar X‐ray inspection system for the fast detection of small fishbones

Author:
Zhong, Jian; Zhang, Fengping; Lu, Zhiwen; Liu, Yaomin; Wang, Xichang
Source:
Journal of food process engineering 2019 v.42 no.3 pp. e13010
ISSN:
0145-8876
Subject:
toxic substances,   etc   ; X-radiation; fish fillets; frozen fish; metals;     Show all 5 Subjects
Abstract:
... The fast detection of native hazardous material (fishbones) and foreign material contamination (metals, stones, pen caps, etc.) have limited mass production and good sale of fish fillets in aquatic product processing plant. In this work, we developed a high speed display‐delayed planar X‐ray inspection system, which could be applied to rapidly and efficiently distinguish small fishbones in fish fi ...
DOI:
10.1111/jfpe.13010

3. How do toxicants affect epidemiological dynamics?

Author:
Booton, Ross D.; Iwasa, Yoh; Childs, Dylan Z.
Source:
Oikos 2019 v.128 no.5 pp. 729-740
ISSN:
0030-1299
Subject:
toxic substances,   etc   ; disease outbreaks; extinction; immunity; models; parasites; prediction; risk;     Show all 8 Subjects
Abstract:
... Populations are formed of their constituent interacting individuals, each with their own respective within‐host biological processes. Infection not only spreads within the host organism but also spreads between individuals. Here we propose and study a multilevel model which links the within‐host statuses of immunity and parasite density to population epidemiology under sublethal and lethal toxican ...
DOI:
10.1111/oik.05654

4. Fixed-bed column adsorption study: a comprehensive review

Author:
Patel, Himanshu
Source:
Applied water science 2019 v.9 no.3 pp. 45
ISSN:
2190-5487
Subject:
toxic substances,   etc   ; adsorbents; adsorption; chromium; dyes; models; wastewater;     Show all 7 Subjects
Abstract:
... Present paper involved the review of fixed-bed column studies for removal of various contaminants from synthetic wastewater. Basic concept of adsorption, its types (i.e., chemisorption and physisorption) and its mechanism, adsorbents and adsorbates were included. Comparison of batch and column adsorption study is mentioned. Complete study of breakthrough curve for designing adsorptive column is in ...
DOI:
10.1007/s13201-019-0927-7

5. An introduction to copper and zinc pollution in macroalgae: for use in remediation and nutritional applications

Author:
Geddie, Alexander W.; Hall, Steven G.
Source:
Journal of applied phycology 2019 v.31 no.1 pp. 691-708
ISSN:
0921-8971
Subject:
toxic substances,   etc   ; copper; macroalgae; pollution; remediation; salinity; toxicity; zinc;     Show all 8 Subjects
Abstract:
... Macroalgae are an economically significant and fast-growing global commodity. However, pollution significantly affects the production and quality of macroalgae. Various studies have shown copper and zinc concentrations above 20 ppb (Cu) and 30 ppb (Zn) generally inhibit macroalgae growth. However, accumulation of metals in macroalgae is affected by several different factors, substances, and proces ...
DOI:
10.1007/s10811-018-1580-5

6. Heterogeneous photocatalytic degradation of diuron on zinc oxide: Influence of surface-dependent adsorption on kinetics, degradation pathway, and toxicity of intermediates

Author:
Meephon, Sutaporn; Rungrotmongkol, Thanyada; Puttamat, Somchintana; Praserthdam, Supareak; Pavarajarn, Varong
Source:
Journal of environmental sciences (China) 2019 v.84 pp. 97-111
ISSN:
1001-0742
Subject:
toxic substances,   etc   ; adsorption; catalysts; diuron; hydroxyl radicals; nanorods; photocatalysis; phytotoxicity; zinc oxide;     Show all 9 Subjects
Abstract:
... Heterogeneous photocatalytic reaction has been generally applied for degradation of toxic contaminants. Degradations of a compound using the same kind of catalyst that was synthesized differently are commonly found in literature. However, the reported degradation intermediates are normally inconsistent. This issue is especially important for the degradation of toxic compounds because intermediates ...
DOI:
10.1016/j.jes.2019.04.016

7. Two new approaches for the bi-objective shortest path with a fuzzy objective applied to HAZMAT transportation

Author:
Zero, Luca; Bersani, Chiara; Paolucci, Massimo; Sacile, Roberto
Source:
Journal of hazardous materials 2019 v.375 pp. 96-106
ISSN:
0304-3894
Subject:
toxic substances,   etc   ; algorithms; case studies; decision making; gasoline; risk; road transportation;     Show all 7 Subjects
Abstract:
... This work proposes two algorithms to the Bi-objective Shortest Path (BSP) problem, considering a fuzzy objective. Such approaches originally extend two classic label setting algorithms to solve BSP, in particular, the first one using a modified Gandibleux revision of Martin's algorithm and the second one based on the A* algorithm acceleration technique. The proposed extensions differ from the prev ...
DOI:
10.1016/j.jhazmat.2019.02.101

8. Evaluation of a lateral flow immunoassay for the detection of the synthetic opioid fentanyl

Author:
Angelini, Daniel J.; Biggs, Tracey D.; Maughan, Michele N.; Feasel, Michael G.; Sisco, Edward; Sekowski, Jennifer W.
Source:
Forensic science international 2019 v.300 pp. 75-81
ISSN:
0379-0738
Subject:
toxic substances,   etc   ; cross reaction; fentanyl; heroin; immunoassays; law enforcement; narcotics; overdose; toxicity;     Show all 9 Subjects
Abstract:
... In 2017, 47,600 overdose deaths were reported to be associated with the abuse of opioids, including prescription painkillers (e.g. oxycodone), opiates (e.g. heroin), or synthetic opioids (e.g. fentanyl) within the United States. The recent spike in the presence of synthetic opioids in lots of heroin distributed on the street present specific and significant challenges to law enforcement. Synthetic ...
DOI:
10.1016/j.forsciint.2019.04.019

9. High sorption of reactive dyes onto cotton controlled by chemical potential gradient for reduction of dyeing effluents

Author:
Mu, Bingnan; Liu, Linyun; Li, Wei; Yang, Yiqi
Source:
Journal of environmental management 2019 v.239 pp. 271-278
ISSN:
0301-4797
Subject:
toxic substances,   etc   ; biodegradability; cotton; dyeing; effluents; equipment; fabrics; pollution; reactive dyes; salts; solvents; sorption; soybean oil;     Show all 13 Subjects
Abstract:
... This research uses soybean oil/water dual-phase solvents system (SWDS) to achieve high dye fixation as well as minimal discharge of waste effluents. Reactive dyeings are one of the most serious pollution sources and few dyeing technologies developed could successfully reduce the generation of toxic substances without decreasing dyeing qualities. Through a remarkable increase in chemical potential ...
DOI:
10.1016/j.jenvman.2019.03.062

10. Understanding the thermal degradation patterns of hopane biomarker compounds present in crude oil

Author:
Han, Yuling; John, Gerald F.; Clement, T. Prabhakar
Source:
The Science of the total environment 2019 v.667 pp. 792-798
ISSN:
0048-9697
Subject:
toxic substances,   etc   ; aquatic ecosystems; biomarkers; burning; oil spills; oils; petroleum; temperature; thermal degradation; weathering;     Show all 10 Subjects
Abstract:
... In-situ burning (ISB) is a common oil spill response technique used for managing marine oil spills. The burnt residues generated from ISB can have several toxic compounds and therefore their impacts on aquatic ecosystem are of major environmental concern. When quantifying the fate of the toxic compounds in ISB residues, C30-αβ hopane is routinely used as a conservative biomarker since it has shown ...
DOI:
10.1016/j.scitotenv.2019.02.445

11. High efficiency CNT-Si heterojunction solar cells by dry gas doping

Author:
Zhao, Xuewei; Wu, Huaisheng; Yang, Liusi; Wu, Yizeng; Sun, Yuping; Shang, Yuanyuan; Cao, Anyuan
Source:
Carbon 2019 v.147 pp. 164-171
ISSN:
0008-6223
Subject:
toxic substances,   etc   ; air; carbon; carbon nanotubes; electric potential difference; lighting; manufacturing; ozonation; ozone; silicon; solar cells;     Show all 11 Subjects
Abstract:
... Carbon nanotubes (CNTs) have been integrated with silicon to construct CNT-Si heterojunction solar cells; doping CNTs is one of the promising techniques to improve the solar cell performance. Here, we propose a gas-doping method by exposing as-fabricated CNT-Si solar cells to ozone for a short time. We find that a 5-min ozone treatment does not destroy the CNT structure but produces a significant ...
DOI:
10.1016/j.carbon.2019.02.078

12. Photosynthesis-based hybrid nanostructures: Electrochemical sensors and photovoltaic cells as case studies

Author:
Antonacci, Amina; Scognamiglio, Viviana
Source:
Trends in analytical chemistry 2019 v.115 pp. 100-109
ISSN:
0165-9936
Subject:
toxic substances,   etc   ; case studies; electrochemistry; energy conversion; nanomaterials; photosynthesis; photovoltaic cells; renewable energy sources; sensors (equipment);     Show all 9 Subjects
Abstract:
... The recall of attention regarding the environment safeguard roused the scientific world, which currently addressed the issue by cutting-edge technologies merger. In particular, hybrid devices have been developed joining the natural elements originated from the photosynthetic process and different nanomaterials, with the purpose to monitor the release of toxic compounds as well as support alternati ...
DOI:
10.1016/j.trac.2019.04.001

13. Validation and Sensitivity Study of the PMSS Modelling System for Puff Releases in the Joint Urban 2003 Field Experiment

Author:
Oldrini, Olivier; Armand, Patrick
Source:
Boundary-layer meteorology 2019 v.171 no.3 pp. 513-535
ISSN:
0006-8314
Subject:
toxic substances,   etc   ; buildings; field experimentation; meteorological data; models; momentum; prediction; sulfur hexafluoride; turbulent flow; Oklahoma;     Show all 10 Subjects
Abstract:
... The Joint Urban 2003 (JU 2003) experimental campaign took place in downtown Oklahoma City, Oklahoma, USA, comprising both continuous and puff releases of sulphur hexafluoride (SF₆) tracer gas. In the framework of the UDINEE project, intensive operation period 8 (IOP 8) conducted during the night is simulated using the Parallel-Micro-SWIFT-SPRAY (PMSS) three-dimensional modelling system. The PMSS m ...
DOI:
10.1007/s10546-018-00424-1

14. Roles of reactive oxygen species (ROS) in the photocatalytic degradation of pentachlorophenol and its main toxic intermediates by TiO2/UV

Author:
Ma, Hai-Yan; Zhao, Lixia; Guo, Liang-Hong; Zhang, Hui; Chen, Feng-Jie; Yu, Wan-Chao
Source:
Journal of hazardous materials 2019 v.369 pp. 719-726
ISSN:
0304-3894
Subject:
toxic substances,   etc   ; benzoquinones; human health; hydrogen peroxide; pentachlorophenol; photocatalysis; superoxide anion; water quality; water treatment;     Show all 9 Subjects
Abstract:
... Pentachlorophenol (PCP) caused water quality problems owe to its past widespread application and stability, harmful to human health. Photocatalysis, which was mainly involved in the reactive oxygen species (ROS) reaction, has large potential as water treatment process. However, the roles of ROS on the degradation process of PCP are not yet clearly defined. The main objectives of this work were to ...
DOI:
10.1016/j.jhazmat.2019.02.080

15. Early mitochondrial fragmentation is a potential in vitro biomarker of environmental stress

Author:
Perdiz, Daniel; Oziol, Lucie; Poüs, Christian
Source:
Chemosphere 2019 v.223 pp. 577-587
ISSN:
0045-6535
Subject:
toxic substances,   etc   ; biomarkers; cytotoxicity; mitochondria; models; phenotype; pollution; viability; viability assays;     Show all 9 Subjects
Abstract:
... Mitochondria are essential dynamic organelles that ordinarily balance between fragmentation and fusion. Under stress conditions, a shift toward fragmentation or hyper-fusion is observed as a pro-survival reaction. Fragmentation of mitochondria occurs within minutes or hours after the beginning of the stress and occurs in response to a large number of stress stimuli, including those triggered by en ...
DOI:
10.1016/j.chemosphere.2019.02.044

16. Comparative biodegradation of all chlorinated phenols by the microalga Scenedesmus obliquus — The biodegradation strategy of microalgae

Author:
Papazi, Aikaterini; Karamanli, Maria; Kotzabasis, Kiriakos
Source:
Journal of biotechnology 2019 v.296 pp. 61-68
ISSN:
0168-1656
Subject:
toxic substances,   etc   ; 2,4-dichlorophenol; Scenedesmus obliquus; biodegradation; biomass production; energy; microalgae; pentachlorophenol; stress tolerance; toxicity; wastes;     Show all 11 Subjects
Abstract:
... This work presents the comparative biodegradation of all chlorinated phenolic compounds by the green alga Scenedesmus obliquus and determines the microalgal bioenergetic strategy. The microalga manages its energy reserves rationally by investing them, either on growth or on the biodegradation of the toxic compound. The microalga seems to follow two distinct detoxification strategies. In the first ...
DOI:
10.1016/j.jbiotec.2019.03.010

17. Natural and assisted dissipation of polycyclic aromatic hydrocarbons in a long-term co-contaminated soil with creosote and potentially toxic elements

Author:
Madrid, F.; Rubio-Bellido, M.; Villaverde, J.; Peña, A.; Morillo, E.
Source:
The Science of the total environment 2019 v.660 pp. 705-714
ISSN:
0048-9697
Subject:
toxic substances,   etc   ; Vibrio fischeri; acute toxicity; bacteria; bioavailability; bioremediation; creosote; phenanthrenes; polluted soils; rhamnolipids; toxicity testing;     Show all 11 Subjects
Abstract:
... An enhanced bioremediation strategy was applied to an industrial soil co-contaminated with Polycyclic Aromatic Hydrocarbons (PAHs) and Potentially Toxic Elements (PTEs). Hydroxypropyl-β-cyclodextrin (HPBCD) and a natural mixture of two rhamnolipids (RL) were added to increase PAHs bioavailability, and combined with a microbial consortium (MC) to biodegrade soil PAHs. Bioavailability of only six PA ...
DOI:
10.1016/j.scitotenv.2018.12.376

18. Tannic acid for remediation of historically arsenic-contaminated soils

Author:
Gusiatin, Zygmunt Mariusz; Klik, Barbara; Kulikowska, Dorota
Source:
Environmental technology 2019 v.40 no.8 pp. 1050-1061
ISSN:
1479-487X
Subject:
toxic substances,   etc   ; arsenic; oxides; pH; polluted soils; remediation; soil pollution; soil washing; sorption; tannins; washing;     Show all 11 Subjects
Abstract:
... Soil washing effectively and permanently decreases soil pollution. Thus, it can be considered for the removal of the most toxic elements, for example arsenic (As). In this study, historically As-contaminated soils (2041–4294 mg/kg) were remediated with tannic acid (TA) as the washing agent. The scope of this study included optimization of the operational conditions of As removal, determination of ...
DOI:
10.1080/09593330.2017.1417490

19. A visualized investigation on the intellectual structure and evolution of waste printed circuit board research during 2000–2016

Author:
Yang, Lie; He, Liuyang; Ma, Yongfei; Wu, Li; Zhang, Zulin
Source:
Environmental science and pollution research international 2019 v.26 no.11 pp. 11336-11341
ISSN:
0944-1344
Subject:
toxic substances,   etc   ; databases; electronic equipment; electronic wastes; metals; pollution; profitability; pyrolysis; recycling;     Show all 9 Subjects
Abstract:
... Waste printed circuit boards (WPCBs) containing various metals and hazardous materials are considered as a secondary resource and an environmental pollution source. A systematic overview of WPCB study was conducted by using CiteSpace. The relevant knowledge of 242 documents was collected from SCI-Expanded database (SCIE) and saved as txt files. A 556-node and 636-link network and 17 clusters were ...
DOI:
10.1007/s11356-019-04590-8

20. Detection of gas molecule using C3N island single electron transistor

Author:
Rani, S.; Ray, S.J.
Source:
Carbon 2019 v.144 pp. 235-240
ISSN:
0008-6223
Subject:
toxic substances,   etc   ; adsorption; carbon dioxide; detection limit; graphene; temperature; toxicity; transistors;     Show all 8 Subjects
Abstract:
... C3N is a recently discovered 2D layered material structurally similar to graphene, which has demonstrated immense prospect for future nanoelectronics. In this work, we have designed and investigated the operation and performance of a C3N island single electron transistor (SET) for the first time. Using First-principles based calculations, we investigated the effect of various molecular adsorptions ...
DOI:
10.1016/j.carbon.2018.12.018