YIC-IR研究单元&专题: 海岸带环境工程技术研究与发展中心
<font size="2" color="#003366"><font face="楷体, arial, helvetica, sans-serif"> </font></font><a href="http://etrc.yic.cas.cn/" target="_blank"><strong>山东省海岸带环境工程技术研究中心</strong></a><font size="2" color="#003366">(以下简称工程技术研究中心)是针对山东省海岸带经济社会可持续发展的迫切需要,于2012年1月批准成立。工程技术研究中心将集中开发适用于海岸带环境监测与生态修复的关键技术与设备,主要包括:分析监测监视技术与设备、污染水体控制与修复、污染土壤/场地修复、海水资源综合利用等。建设海岸带环境监测与修复产业技术平台,促进环境监测与修复战略产业快速发展,提升整体水平和国际市场竞争力,为改善海岸带环境质量,保障海产品和农产品质量安全、饮用水源地安全和人居环境安全提供技术与设备支撑。这些技术、设备与产品的生产及应用。工程技术研究中心的建设必将为山东省“一蓝一黄”和“一体两翼”以及《山东省海岸带规划2008-2020》的落实提供强有力的技术支撑。</font>
http://ir.yic.ac.cn:80/handle/133337/7046
2024-03-29T14:13:21Z
2024-03-29T14:13:21Z
NIR Light-Activated Mitochondrial RNA Cross-Linking Strategy for H<sub>2</sub>S Monitoring and Prolonged Colorectal Tumor Imaging
Lu, Zhihao
Tan, Jiangkun
Wu, Yuting
You, Jinmao
Xie, Xiunan
Zhang, Zhiyong
Li, Zan
Chen, Lingxin
http://ir.yic.ac.cn:80/handle/133337/34354
2024-02-23T10:49:04Z
2024-02-23T10:49:04Z
题名: NIR Light-Activated Mitochondrial RNA Cross-Linking Strategy for H<sub>2</sub>S Monitoring and Prolonged Colorectal Tumor Imaging
作者: Lu, Zhihao; Tan, Jiangkun; Wu, Yuting; You, Jinmao; Xie, Xiunan; Zhang, Zhiyong; Li, Zan; Chen, Lingxin
摘要: Molecular diffusion and leakage impede the long-term retention of probes/drugs and may cause potential adverse effects in theranostic fields. Spatiotemporally manipulating the organelle-immobilization behavior of probes/drugs for prolonged tumor retention is indispensable to achieving effective cancer diagnosis and therapy. Herein, we propose a rational strategy that could realize near-infrared light-activated ribonucleic acids (RNAs) cross-linking for prolonged tumor retention and simultaneously endogenous hydrogen sulfide (H2S) monitoring in colorectal tumors. Profiting from efficient singlet oxygen (O-1(2)) generation from Cy796 under 808 nm light irradiation, the O-1(2)-animated furan moiety in Cy796 could covalently cross-link with cytoplasmic RNAs via a cycloaddition reaction and realize organelle immobilization. Subsequently, specific thiolysis of Cy796 assisted with H2S resulted in homologous product Cy644 with reduced O-1(2) generation yields and enhanced absolute fluorescence quantum yields (from 7.42 to 27.70%) with blue-shifted absorption and emission, which avoided the molecular oxidation fluorescence quenching effect mediated by O-1(2) and validated fluorescence imaging. Furthermore, studies have demonstrated that our proposed strategy possessed adequate capacity for fluorescence imaging and endogenous H2S detection in HCT116 cells, particularly accumulated at the tumor sites, and retained long-term imaging with excellent biocompatibility. The turn-on fluorescence mode and turn-off (1)O(2 )generation efficiency in our strategy successfully realized a diminished fluorescence cross-talk and oxidation quenching effect. It is adequately envisioned that our proposed strategy for monitoring biomarkers and prolonged tumor retention will contribute tremendous dedication in the clinical, diagnostic, and therapeutic fields.
2024-02-23T10:49:04Z
Novel porphyrin derivative containing cations as new photodynamic antimicrobial agent with high efficiency
Zhang, Jiajing
Yuan, Xiaoqian
Li, Hongsen
Yu, Liting
Zhang, Yulong
Pang, Keyi
Sun, Chaoyue
Liu, Zhongyang
Li, Jie
Ma, Liying
Song, Jinming
Chen, Lingxin
http://ir.yic.ac.cn:80/handle/133337/34342
2024-02-23T10:42:52Z
2024-02-23T10:42:52Z
题名: Novel porphyrin derivative containing cations as new photodynamic antimicrobial agent with high efficiency
作者: Zhang, Jiajing; Yuan, Xiaoqian; Li, Hongsen; Yu, Liting; Zhang, Yulong; Pang, Keyi; Sun, Chaoyue; Liu, Zhongyang; Li, Jie; Ma, Liying; Song, Jinming; Chen, Lingxin
摘要: Bacterial infections from chronic wounds affect about 175 million people each year and are a significant clinical problem. Through the integration of photodynamic therapy (PDT) and chemotherapy, a new photosensitizer consisting of ammonium salt N,N-bis-(2-hydroxyethyl)-N-(6-(4-(10,15,20-trimesitylporphyrin-5-yl) phenoxy) hexane)-N-methanaminium bromide, TMP(+) was successfully synthesized with a total reaction yield of 10%. The novel photosensitizer consists of two parts, a porphyrin photosensitizer part and a quaternary ammonium salt part, to achieve the synergistic effect of photodynamic and chemical antibacterial activity. With the increase of TMP(+) concentration, the diameter of the PCT fiber membranes (POL/COL/TMP(+); POL, polycaprolactone; COL, collagen) gradually increased, which was caused by the charge of the quaternary ammonium salt. At the same time, the antibacterial properties were gradually improved. We finally selected the PCT 0.5% group for the antibacterial experiment, with excellent performance in fiber uniformity, hydrophobicity and biosafety. The antibacterial experiment showed that the modified porphyrin TMP(+) had a better antibacterial effect than others. In vivo chronic wound healing experiments proved that the antibacterial and anti-inflammatory effect of the PCTL group was the best, further confirmed by H&E histological analysis, immunofluorescence and immunohistochemistry mechanism experiments. This research lays the foundation for the manufacture of novel molecules that combine chemical and photodynamic strategies.
A new photosensitizer consisting of ammonium salt, TMP(+) was synthesized and achieved the synergistic effect of photodynamic and chemical antibacterial activity. Experiments showed promising bactericidal properties, while accelerating the healing of Staphylococcus aureus infected mice.
2024-02-23T10:42:52Z
Field determination and ecological health risk assessment of trace metals in typical mariculture area of China
Liang, Yan
Pan, Dawei
Li, Ying
Han, Haitao
Wang, Xiaofeng
Gai, Guowei
http://ir.yic.ac.cn:80/handle/133337/34330
2024-02-23T10:42:45Z
2024-02-23T10:42:45Z
题名: Field determination and ecological health risk assessment of trace metals in typical mariculture area of China
作者: Liang, Yan; Pan, Dawei; Li, Ying; Han, Haitao; Wang, Xiaofeng; Gai, Guowei
摘要: Field determination of dissolved trace metals (Cu, Pb and Cd) by using automated electrochemical system had been done in three typical mariculture areas of Yellow Sea (YS), East China Sea (ECS) and South China Sea (SCS) in China. Higher concentrations of Cu and Pb were found in ECS while the Cd concentration showed a decreasing trend from north to south of China. The metal distribution and ecological health risk assessments were also conducted. Cu and Pb in the YS and Cu in SCS were moderately contaminated. ECS had considerable Cu contamination and very high Pb contamination. Compared with other coastal areas, mariculture affected the concentration and spatial distribution of trace metals, but it was not a necessarily dominant factor. Overall, the results contribute to the further development of field and on-board metal detection technology and lay a foundation for the realization of field ecological health risk assessments of mariculture waters.
2024-02-23T10:42:45Z
AU Nanoparticles Immobilized on Black Phosphorus Intercalated Spherical Covalent Organic Frameworks as Highly Active Catalysts for Flow-Through Reduction of 4-Nitrophenol
Xiao, Fengyan
Pan, Dawei
Wang, Ning
http://ir.yic.ac.cn:80/handle/133337/34308
2024-01-26T17:03:43Z
2024-01-26T17:03:43Z
题名: AU Nanoparticles Immobilized on Black Phosphorus Intercalated Spherical Covalent Organic Frameworks as Highly Active Catalysts for Flow-Through Reduction of 4-Nitrophenol
作者: Xiao, Fengyan; Pan, Dawei; Wang, Ning
摘要: The unique structure and morphology of covalent organic frameworks (COFs) show great potential as active substrates to support noble metals for catalytic application. However, the applications are restricted by their catalytic activity due to the weak conductivity of COFs. Here, conductive black phosphorus was intercalated inside the spherical COFs (SCOFs) during their synthesis process, followed by the immobilization of Au nanoparticles (Au NPs) to construct Au NPs/BP/SCOFs microspheres. A fast and stable flow-through catalysis towards 4-nitrophenol was obtained due to the design of conductive BP nanosheets intercalated SCOFs microspheres with enhanced electron transfer and stable structure. Our strategy to design the conductive BP nanosheets intercalated SCOFs microspheres would develop a new route to improve the catalytic activity for highly efficient conversion nitro-aromatic organic pollutants. © 2023, The Authors. All rights reserved.
2024-01-26T17:03:43Z
Macrobenthos Functional Feeding Group and Ecosystem Health Assessment of the Intertidal Zone in the Yellow River Delta
Shaoyu, Jiang
Zhang, Chuanxin
Wang, Jiao
Chen, Linlin
Li, Baoquan
http://ir.yic.ac.cn:80/handle/133337/34298
2024-01-26T17:03:32Z
2024-01-26T17:03:32Z
题名: Macrobenthos Functional Feeding Group and Ecosystem Health Assessment of the Intertidal Zone in the Yellow River Delta
作者: Shaoyu, Jiang; Zhang, Chuanxin; Wang, Jiao; Chen, Linlin; Li, Baoquan
摘要: The Yellow River Delta (YRD) is the youngest, broadest, and most integrated wetland ecosystem in China. However, it is currently facing numerous threats, leading to local habitat destruction and species depletion. Spatial-temporal differences of macrobenthos functional feeding groups (FFGs), in the YRD, in May, August, and November, 2017. The ecological health status (EHS) was assessed in this investigation using the multivariate AMBI (M-AMBI) and the feeding evenness index (jFD). The results showed that the omnivorous, carnivorous, and detritivore groups were widely distributed in the YRD in May, August, and November respectively. The biomass of phytophagous and carnivorous groups was dominant groups in May and August, respectively. Furthermore, the relative abundance of planktivorous groups was higher in northern YRD in May and August. The macrobenthos community, in general, was slightly disturbed according to the AMBI, which were mainly distributed in the low tide zone. However, 70% of stations were classified as being in "poor" to "bad" status according to the M-AMBI and jFD indices, particularly in August. All the results will provide a basis for the long-term ecological assessment of reclamation, and the findings required further protection of the Yellow River Delta. © 2023, The Authors. All rights reserved.
2024-01-26T17:03:32Z
Functional materials-based sample pretreatment for disinfection by-products
Li, Shuang
Ma, Jiping
Cheng, Jiawen
Wu, Gege
Ostovan, Abbas
Li, Jinhua
Wang, Xiaoyan
Chen, Lingxin
http://ir.yic.ac.cn:80/handle/133337/34297
2024-01-26T17:03:31Z
2024-01-26T17:03:31Z
题名: Functional materials-based sample pretreatment for disinfection by-products
作者: Li, Shuang; Ma, Jiping; Cheng, Jiawen; Wu, Gege; Ostovan, Abbas; Li, Jinhua; Wang, Xiaoyan; Chen, Lingxin
摘要: The health risk caused by highly toxic disinfection by-products (DBPs) is a global concern, and monitoring their exposure levels is urgently needed. Solid phase extraction (SPE) has become an indispensable element for sensitive and accurate analysis through purification and enrichment. Meanwhile, DBPs possess diverse molecular characteristics owing to various functional groups and molecular sizes, and conventional extraction materials lack desirable selectivity and affinity to DBPs, which restricts the development of efficient analytical approaches. Recently, the development of functional materials with ideal selectivity, adsorption capacity, and regeneration ability has demonstrated great potential to address this situation. This review summarizes the latest studies on the functional materials-based SPE sample pretreatment of DBPs since 2012. We focus on the design and preparation of functional materials, as well as adsorption mechanisms. The future prospects and challenges of utilizing functional materials in the analysis of DBPs are proposed, aiming to promote the corresponding analytical methods. © 2023 Elsevier B.V.
2024-01-26T17:03:31Z
Translocation of CdS nanoparticles in maize (Zea mays L.) plant and its effect on metabolic response
Ullah, Hameed
Zheng, Wang
Sheng, Yanqing
http://ir.yic.ac.cn:80/handle/133337/34295
2024-01-26T17:03:29Z
2024-01-26T17:03:29Z
题名: Translocation of CdS nanoparticles in maize (Zea mays L.) plant and its effect on metabolic response
作者: Ullah, Hameed; Zheng, Wang; Sheng, Yanqing
摘要: Cadmium sulfide nanomaterials are of great concern because of their potential toxicity and unavoidable releases due to multiple commercial applications of nanoparticles (NPs). Commercial NPs act as mediators of damage to plant cells and pose potential toxicity to plants and human health. In the current study, investigated the phytotoxicology, absorption, translocation, antioxidant enzyme activity, and metabolic profiles of maize (Zea mays L.) seedlings exposed to different hydroponic treatments for fifteen days. The different concentrations of CdS NPs (3, 15, 30, 50, and 100 mg/L), 0.3 mg/L Cd ions, and unexposed control were performed in treatments. The results indicated that CdS NPs could present phytotoxic effects on seed germination and root elongation. Compared to the control, the CdS NPs dramatically reduced the shoots and root biomass, as well as the shape of the roots. Transmission electron microscopy and energy-dispersive mapping confirmed that CdS NPs could penetrate the maize root epidermis and bioaccumulate in the shoots with high concentrations. According to metabolomics studies, exposure to CdS NPs and Cd ions would result in metabolic disruption. Based on the statistical analysis, 290 out of 336 metabolites (86.30%) were obviously inhibited. The findings of this study demonstrated possible risks of emerging potential toxic NPs, and the release of these NPs to environment is a serious concern for agricultural activities. © 2023 Elsevier Ltd
2024-01-26T17:03:29Z
Pilin and Flavin Enhance Interspecies Electron Transfer between Microcystis and Bacteria
Wang, Wenjing
Sheng, Yanqing
http://ir.yic.ac.cn:80/handle/133337/34294
2024-01-26T17:03:28Z
2024-01-26T17:03:28Z
题名: Pilin and Flavin Enhance Interspecies Electron Transfer between Microcystis and Bacteria
作者: Wang, Wenjing; Sheng, Yanqing
摘要: Cyanobacteria Microcystis is found as a colony with bacteria embedded in the mucilage and always proliferates in eutrophic water. The character of extracellular electron transfer of Microcystis and bacteria can translate bioenergy to electric energy by constructing photosynthetic microbial fuel cells (PMFCs). A remarkable current density was detected in the coculture of Microcystis and bacteria than that of pure cyanobacteria or bacteria. Transcriptome analyses showed that light reaction of Microcystis was upregulated and may cause more electron release. Gene transcripts of Calvin cycles were inhibited and the electron consumptions were reduced. Although there was no significant change of oxidative phosphorylation in Microcystis, this pathway of associated bacteria was enhanced in the coculture of Microcystis and bacteria. More electrons were stimulated to be transferred out of bacterial cell membranes though enhancing the copies of VgrG and IcmF in the type II bacterial secretion system. Observing anode electrode and increased pilin copies, Microcystis/bacteria and electrodes linked together although pilin structure or attaching each other tightly as direct electron transfer channels. Corresponding with the upregulated gene expression of flavin production, the more flavins released by Microcystis but not bacteria enhanced electron transfer rates of bacteria. These results of interspecies electron transfer process between Microcystis and bacteria enlarge knowledge for activities of Microcystis colonies, and provide a better understanding for energy transformation. © 2023, The Authors. All rights reserved.
2024-01-26T17:03:28Z
海水化学需氧量的分析方法与监测技术
孙西艳
付龙文
刘永亮
赵建民
陈令新
http://ir.yic.ac.cn:80/handle/133337/34272
2024-01-26T13:46:16Z
2024-01-26T13:46:16Z
题名: 海水化学需氧量的分析方法与监测技术
作者: 孙西艳; 付龙文; 刘永亮; 赵建民; 陈令新
摘要: 化学需氧量(COD)是反映有机污染程度的综合性指标,随着污染的加重及污染物排放总量控制的实施,COD的检/监测变得尤为重要.然而,海水中COD分析测试方法的研究与技术更新进展缓慢,可用仪器设备相对较少,开发可靠、稳定、高效的COD检测新技术及在线、原位、便携分析仪器已成为海洋分析领域中迫切需要解决的重要课题及发展趋势.本文对近年来新兴的COD检测分析方法、分析技术的原理、优缺点进行了论述与总结,分析了各类技术在海水中COD检/监测研究的主要进展与瓶颈,最后,对海水COD检测分析新思路与仪器研制发展方向做出了展望,以期为未来海水中COD的方法研究及在线监测提供参考.
摘要: Chemical oxygen demand (COD) is a comprehensive index reflecting the degree of organic pollution.With the aggravation of pollution and the implementation of total pollutant emission control,the detection and monitoring of COD have become particularly important.However,the research and technical update of COD analysis methods in seawater progress slowly,and the available instruments and equipment are insufficient.The development of reliable,stable and efficient COD detection technology and online,in-situ and portable COD analytical instruments have become an important issue and development trend in the field of marine analysis.This article discusses and summarizes the principles,advantages and deficiencies of COD analysis methods and technologies newly emerging in recent years,analyzes the main progress and bottleneck in the seawater COD detection/monitoring research.Finally,the article also prospects the future detection idea and the new instruments development direction of seawater COD.It is expected to provide a reference for future research on methods and online monitoring of COD in seawater.
2024-01-26T13:46:16Z
基于光(电)催化氧化技术的化学需氧量测定研究进展
蒋成影
孙西艳
付龙文
赵荣芳
陈令新
http://ir.yic.ac.cn:80/handle/133337/34270
2024-01-26T13:46:14Z
2024-01-26T13:46:14Z
题名: 基于光(电)催化氧化技术的化学需氧量测定研究进展
作者: 蒋成影; 孙西艳; 付龙文; 赵荣芳; 陈令新
摘要: 化学需氧量(COD)是以化学方法测量水样中需要被氧化的还原性物质的量,是一项反映水体环境有机物污染的综合评价指标.传统的高温高压消解COD的方法存在分析时间长、操作过程繁琐、操作安全性差等缺点.近年来,人们逐渐将目光聚集到消解方法的改进上,其中,光(电)催化氧化法被认定为最有发展前景的有机物氧化技术,在水环境分析领域显示出了极大的优越性.本文综述了光催化氧化技术和光电催化氧化技术在COD测定中的应用,主要介绍了光(电)催化氧化技术测定COD的机理及研究进展,并展望了光(电)催化氧化技术在COD测定领域未来的研究重点和发展趋势.
摘要: Chemical oxygen demand (COD) is a chemical measurement to measure the amount of reducing substances that need to be oxidized in water samples, and it is a comprehensive evaluation indicator to reflect the environmental organic pollution of water bodies. The traditional high-temperature and high-pressure COD digestion method has some disadvantages, such as long analysis time, tedious operation process and poor operation safety. In recent years, researchers have gradually focused on the improvement of digestion methods. Among them, photocatalytic (photoelectrocatalytic) oxidation has been identified as the most promising organic oxidation technology, which has shown great superiority in the field of water analysis. This paper reviews the application of photocatalytic oxidation technology and photoelectrocatalytic oxidation technology in COD determination, mainly introduces the mechanism and research progress of photocatalytic (photoelectrocatalytic) oxidation technology in COD determination, and looks forward to the future research focus and development trend of photocatalytic (photoelectrocatalytic) oxidation technology in the field of COD determination.
2024-01-26T13:46:14Z