Article
Engineering, Environmental
Zhan Wu, Ying Zhang, Jiazheng Jiang, Jian Pu, Satoshi Takizawa, Li-an Hou, Yu Yang
Summary: The study showed that GO/FH-UF significantly alleviated membrane fouling, reduced DBP formation potential, and exhibited better removal of NOM.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Lihua Yang, Yaocheng Deng, Daoxin Gong, Haifeng Luo, Xuguo Zhou, Fangzhou Jiang
Summary: The study investigated the effects of low molecular weight organic acids (LMWOAs) on the adsorption of quinclorac by sepiolite. It was found that different types of LMWOAs had varying impacts on the adsorption process, with some causing inhibition and others stimulation. The adsorption isotherms in the presence of LMWOAs were better described by Freundlich and linear models. Additionally, interactions involving competition, electrostatic attraction, bridging action, and hydrogen bonding were identified as mechanisms through which LMWOAs affect quinclorac adsorption.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Multidisciplinary
Sumarni Mansur, Mohd Hafiz Dzarfan Othman, Muhammad Nidzhom Zainol Abidin, Nik Ahmad Nizam Nik Malek, Ahmad Fauzi Ismail, Siti Hamimah Sheikh Abdul Kadir, Pei Sean Goh, Mohd Sohaimi Abdullah, Muhammad Hariz Asraf
Summary: This study developed dual-layer hollow fiber (DLHF) membranes with dual functions of biocompatible adsorption and antibacterial effects to solve the problem of incompatible membranes and bacterial endotoxin contamination. DLHF membranes with silica/ a-mangostin nanoparticle in the inner layer and activated carbon (AC) in the outer layer showed improved antibacterial properties, urea and creatinine removal capabilities compared to single-layer membranes. The co-adsorptive biocompatible DLHF membrane can play an important role in improving the lives of kidney patients.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Qiqi Wei, Qiang Zhang, Jiuyan Chen, Yihan Jin, Kun Zhou, Weifeng Chen, Taotao Lu, Zhichong Qi
Summary: This study investigated the impact of low-molecular-weight organic acids (LMWOAs) on the adsorption of tetracycline (TC) onto hematite. The results showed that LMWOAs suppressed TC adsorption onto hematite, mainly due to competitive adsorption, increased electrostatic repulsion, and steric hindrance. Divalent cations further enhanced the inhibitory effects. Different mechanisms were involved in the adsorption process at different pH levels.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Multidisciplinary
Michael A. Casasanta, G. M. Jonaid, Liam Kaylor, William Y. Luqiu, Maria J. Solares, Mariah L. Schroen, William J. Dearnaley, Jarad Wilson, Madeline J. Dukes, Deborah F. Kelly
Summary: The research team utilized cryo-Electron Microscopy to conduct molecular structural and biochemical analysis of the SARS-CoV-2 nucleocapsid (N) protein, leading to the discovery of an antibody binding site through microchip-based immunoprecipitation assays. These findings are expected to guide future pandemic preparedness strategies.
Article
Agricultural Engineering
Nguyen Duc Viet, Hyeonho Lee, Sung-Ju Im, Am Jang
Summary: The study found that the addition of PAC in OMBR significantly improves water recovery and reduces fouling layer thickness, while also enhancing microbial diversity. PAC-OMBR can achieve nearly 100% removal of low-MW MPs and significantly reduce the pathway of these pollutants entering diluted fertiliser.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Pan Pan, Huizhan Liu, Ang Liu, Xinchun Zhang, Qingmian Chen, Guihua Wang, Beibei Liu, Qinfen Li, Mei Lei
Summary: This study investigated the immobilization of cadmium (Cd) in soils using vermicompost under different pH and low-molecular-weight organic acids (LMWOAs) conditions. The results showed that the adsorption capacity of vermicompost for Cd increased with increasing pH, and chemisorption dominated the adsorption process. The addition of oxalic acid promoted Cd adsorption, while citric acid and malic acid inhibited Cd adsorption, through blocking effects and dissolving mineral components.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Engineering, Chemical
Dong Wang, Yumeng Wang, Xuefen Wang
Summary: In this study, a thorn ball-like three-dimensional heterostructured ZIF-67@alpha-MnO2 catalyst embedded in polyacrylonitrile nanofibers was successfully fabricated by electrospinning technique for efficient removal of low-molecular-weight pollutants from wastewater. The resulting membrane showed remarkable adsorption capacity and catalytic activity, as well as high permeability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biochemical Research Methods
Damien Jefferies, Syma Khalid
Summary: Membrane proteins are amphipathic macromolecules with diverse chemical compositions and biological functions. Traditional experimental techniques and molecular modeling software, especially molecular dynamics algorithms, can provide comprehensive insights into the properties and dynamic behaviors of membrane proteins.
Article
Engineering, Environmental
Yan Huang, Leichao Wang, Ge Niu, Mingqing Hua, Linhua Zhu, Peng Cui, Xiaowei Li, Yanhong Chao, Wenshuai Zhu, Zhichang Liu
Summary: A series of Cu/Al doped nitrogen-containing carbon microspheres were synthesized using a simple one-pot hydrothermal method and employed as efficient adsorbents for the removal of oxytetracycline (OTC) contaminants from water. Cu/Al@NC-2 exhibited the highest adsorption capacity for OTC and maintained excellent removal efficiency even after five adsorption cycles. The thermodynamic analysis demonstrated the spontaneous endothermic nature of the adsorption process. This study highlights the potential of Cu/Al@NC-2 for antibiotic wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Urology & Nephrology
Alba Santos, Nicolas Macias, Almudena Vega, Soraya Abad, Tania Linares, Ines Aragoncillo, Leonidas Cruzado, Cristina Pascual, Marian Goicoechea, Juan Manuel Lopez-Gomez
Summary: The post-dialysis aXa activity and APTT were significantly different between HF-HD and HDF as well as between HF-HD and HDx, suggesting that the dialyser may affect the anticoagulant effectiveness by causing more losses of LMWH, leading to the need for dosage adjustment according to dialysis technique.
CLINICAL KIDNEY JOURNAL
(2021)
Article
Energy & Fuels
Li Zhao, Ni Guanhua, Wen Yongzan, Jiang Hehe, Zhang Xiangfei, Wang Gang, Wang Zhenyang
Summary: The competitive adsorption mechanism of CH4 and CO2 was studied, revealing that CO2 adsorption is dominated by electrostatic force and is enhanced by hydrogen bonds with coal. Adsorption mainly occurs in the middle orbit, with more adsorption sites for CO2 in the low and middle orbit compared to CH4. CO2 molecules can enter ultrafine pores, resulting in larger accessible solvent pore volume and surface area compared to CH4.
Article
Biochemistry & Molecular Biology
Wenming Xiong, Yongjun Li, Jidong Ying, Chuxia Lin, Junhao Qin
Summary: This study investigated the behavior of nitrate, organic ligands, and phosphate in the presence of biochar and three low-molecular-weight organic acids. The results showed competition between organic acid ions and nitrate for adsorption sites, with adsorption increasing with solution pH. LMWOAs caused significant release of phosphate from the biochar, with different effects depending on the type of organic acid used.
Article
Chemistry, Physical
Fuqiang Tian, Peng Li, Yijun Cao, Haiqing Hao, Weijun Peng, Guixia Fan
Summary: This work successfully prepared low-molecular-weight carboxylated starch (LMWCS) as a selective depressant for the flotation separation of ilmenite and forsterite. LMWCS showed stronger depression on forsterite flotation compared to natural starch. X-ray photoelectron spectroscopy analysis confirmed that LMWCS was adsorbed onto the ilmenite surface via weak hydrogen bonds, while it adsorbed onto the forsterite surface via strong chemisorption. The higher adsorption layer density of LMWCS on the forsterite surface suggests that LMWCS is an effective and promising depressant for forsterite flotation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Yaohui Wang, Long Li, Gege Cheng, Lanfu Li, Xiuyu Liu, Qin Huang
Summary: A molecularly imprinted nanofiber membrane (MINM) with good adsorption performance for chrysin was prepared using electrospinning, showing potential for the adsorption and separation of active components in natural products.