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Yang D, Bao R, Clare AT, Choi KS, Hou X. Phase change surfaces with porous metallic structures for long-term anti/de-icing application. J Colloid Interface Sci 2024; 660:136-146. [PMID: 38241862 DOI: 10.1016/j.jcis.2024.01.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 12/18/2023] [Accepted: 01/12/2024] [Indexed: 01/21/2024]
Abstract
HYPOTHESIS Ice mitigation has received increasing attention due to the severe safety and economic threats of icing hazards to modern industries. Slippery icephobic surface is a potential ice mitigation approach due to its ultra-low ice adhesion strength, great humidity resistance, and effective delay of ice nucleation. However, this approach currently has limited practical applications because of serious liquid depletion in the icing/de-icing process. EXPERIMENTS A new strategy of phase change materials (PCM)-impregnation porous metallic structures (PIPMSs) was proposed to develop phase changeable icephobic surfaces in this study, and aimed to solve the rapid depletion via the phase changeable interfacial interactions. FINDINGS Evaluation of surface icephobicity and interfacial analysis proved that the phase changeable surfaces (PIPMSs) worked as an effective and durable icephobic platform by significantly delaying ice nucleation, providing long-term humid tolerance, low ice adhesion strength of as-prepared samples (less than 5 kPa), and signally improved maintaining capacity of impregnated PCMs (less than 10 % depletion) after 50 icing/de-icing cycles. To explore the interfacial responses, phase change models consisting of the unfrozen quasi-liquid layer and solid lubricant layer at the ice/PIPMSs interfaces were established, and the involved icephobic mechanisms of PIPMSs were studied based on the analysis of interfacial interactions.
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Affiliation(s)
- Deyu Yang
- State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China
| | - Rui Bao
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Adam T Clare
- Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Kwing-So Choi
- Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Xianghui Hou
- State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China.
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2
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Wang J, Wang Y, Zhang K, Liu X, Zhang S, Wang D, Xie L. Understanding the role of infusing lubricant composition in the interfacial interactions and properties of slippery surface. J Colloid Interface Sci 2024; 659:289-298. [PMID: 38176238 DOI: 10.1016/j.jcis.2023.12.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/06/2024]
Abstract
Liquid-infused surfaces (LISs) have attracted tremendous attention in recent years owing to their excellent surface properties, such as self-cleaning and anti-fouling. Understanding the effect of lubricant composition on LIS performance is of vital importance, which will help establish the criteria to choose suitable infusing lubricants for specific applications. In this work, the role of chemical composition of lubricant in the properties of LISs was investigated. The apparent water contact angle θapp was dependent on the temperature and beeswax/silicone oil ratio. Nevertheless, the trend of moving velocity of water drop on the tilted LISs did not follow that of θapp at 20 °C and 37 °C, which was attributed to the increased lubricant viscosity with beeswax/silicone oil ratio. At 60 °C, the drop velocity and θapp shared the similar variation trend with beeswax/silicone oil ratio, highlighting the significant role of chemistry of the components in beeswax. The alkanes and fatty acids promoted the drop movement, while the fatty acid esters impeded the movement. The interaction forces between water drop and lubricant surfaces were measured using atomic force microscopy. It was demonstrated that the interaction between water drop and lubricant was not the only factor to control the drop movement, while the interaction between lubricant and substrate as well as of lubricant itself also determined the movement. When the adhesions of water-lubricant and lubricant-substrate were similar for different lubricants, the influence of cohesion of lubricant became significant. This work provides useful insights into the fundamental understanding of the interfacial interactions of test drop, infusing lubricant and solid substrate of LISs, and the effect of infusing lubricant composition on the LIS performance.
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Affiliation(s)
- Jingyi Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Sichuan Provincial Key Laboratory of Oil and Gas Fields Applied Chemistry, Chengdu, Sichuan 610500, China.
| | - Yifan Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Kuanjun Zhang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Xun Liu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Shishuang Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory of Icing and Anti/De-icing, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China
| | - Dianlin Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Sichuan Provincial Key Laboratory of Oil and Gas Fields Applied Chemistry, Chengdu, Sichuan 610500, China.
| | - Lei Xie
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory of Icing and Anti/De-icing, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China.
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Kukobat R, Škrbić R, Vallejos-Burgos F, Mercadelli E, Gardini D, Silvestroni L, Zanelli C, Esposito L, Stević D, Atlagić SG, Bodroža D, Gagić Ž, Pilipović S, Tubić B, Pajić NB. Enhanced dissolution of anticancer drug letrozole from mesoporous zeolite clinoptilolite. J Colloid Interface Sci 2024; 653:170-178. [PMID: 37713915 DOI: 10.1016/j.jcis.2023.08.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/17/2023]
Abstract
High dissolution of anticancer drugs directly adsorbed onto porous carriers is indispensable for the development of drug delivery systems with high bioavailability. We report direct adsorption/loading of the anticancer drug letrozole (LTZ) onto the clinoptilolite (CLI) zeolite after the surface activation.In vitroLTZ dissolution from the CLI zeolites reached 95 % after 23 h in an acidic medium, being faster than the dissolution of the pure LTZ molecules. Fast dissolution occurs due to uniform exposure of the LTZ onto the external surface of the CLI zeolites, being accessible to the solvent for dissolution. On the other hand, the LTZ molecules were hidden in the bulk phase, giving a slow dissolution rate. Small positive value of the CLI/LTZ adsorption energy of 0.06 eV suggests that the release process is favourable in aqueous media. The main merit of the CLI/LTZ system is its quick onset of action and high bioavailability. This work demonstrates a possibility of enhancement of the dissolution of poorly soluble LTZ from the CLI zeolite, being promising for the further development of drug delivery systems.
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Affiliation(s)
- Radovan Kukobat
- University of Banja Luka, Faculty of Medicine, Centre for Biomedical Research, Save Mrkalja 16, Banja Luka, the Republic of Srpska, Bosnia and Herzegovina; University of Banja Luka, Faculty of Technology, Department of Chemical Engineering and Technology, B.V Stepe Stepanovica 73, Banja Luka, the Republic of Srpska, Bosnia and Herzegovina.
| | - Ranko Škrbić
- University of Banja Luka, Faculty of Medicine, Centre for Biomedical Research, Save Mrkalja 16, Banja Luka, the Republic of Srpska, Bosnia and Herzegovina; University of Banja Luka, Faculty of Medicine, Department of Pharmacology, Toxicology and clinical Pharmacology, Save Mrkalja 16, Banja Luka, the Republic of Srpska, Bosnia and Herzegovina
| | - Fernando Vallejos-Burgos
- Morgan Advanced Materials, Carbon Science Centre of Excellence, 310 Innovation Blvd., Suite 250, State College, PA 16803, USA
| | - Elisa Mercadelli
- CNR-ISSMC (former ISTEC), Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza I-48018, Italy
| | - Davide Gardini
- CNR-ISSMC (former ISTEC), Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza I-48018, Italy
| | - Laura Silvestroni
- CNR-ISSMC (former ISTEC), Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza I-48018, Italy
| | - Chiara Zanelli
- CNR-ISSMC (former ISTEC), Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza I-48018, Italy
| | - Laura Esposito
- CNR-ISSMC (former ISTEC), Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, Faenza I-48018, Italy
| | - Dragana Stević
- University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000 Banja Luka, the Republic of Srpska, Bosnia and Herzegovina
| | - Suzana Gotovac Atlagić
- University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000 Banja Luka, the Republic of Srpska, Bosnia and Herzegovina
| | - Darko Bodroža
- University of Banja Luka, Faculty of Technology, Department of Chemical Engineering and Technology, B.V Stepe Stepanovica 73, Banja Luka, the Republic of Srpska, Bosnia and Herzegovina; University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000 Banja Luka, the Republic of Srpska, Bosnia and Herzegovina
| | - Žarko Gagić
- University of Banja Luka, Faculty of Medicine, Pharmacy Department, the Republic of Srpska, Bosnia and Herzegovina
| | - Saša Pilipović
- Agency for Medical Products and Medical Devices of Bosnia and Herzegovina, Maršala Tita 9, 71 000 Sarajevo, Bosnia and Herzegovina
| | - Biljana Tubić
- University of Banja Luka, Faculty of Medicine, Pharmacy Department, the Republic of Srpska, Bosnia and Herzegovina
| | - Nataša Bubić Pajić
- University of Banja Luka, Faculty of Medicine, Pharmacy Department, the Republic of Srpska, Bosnia and Herzegovina
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Zhao Z, Pan M, Yang W, Huang C, Qiao C, Yang H, Wang J, Wang X, Liu J, Zeng H. Bioinspired engineered proteins enable universal anchoring strategy for surface functionalization. J Colloid Interface Sci 2023; 650:1525-1535. [PMID: 37487283 DOI: 10.1016/j.jcis.2023.07.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/01/2023] [Accepted: 07/17/2023] [Indexed: 07/26/2023]
Abstract
HYPOTHESIS Conventional coating strategies and materials for bio-applications with protective, diagnostic, and therapeutic functions are commonly limited by their arduous preparation processes and lack of on-demand functionalities. Herein, inspired by the 'root-leaf' structure of grass, a series of novel polyacrylate-conjugated proteins can be engineered with sticky bovine serum albumin (BSA) protein as a 'root' anchoring layer and a multifunctional polyacrylate as a 'leaf' functional layer for the facile coating procedure and versatile surface functionalities. EXPERIMENTS The engineered proteins were synthesized based on click chemistry, where the 'root' layer can universally anchor onto both organic and inorganic substrates through a facile dip/spraying method with excellent stability in harsh solution conditions, thanks to its multiple adaptive molecular interactions with substrates that further elucidated by molecular force measurements between the 'root' BSA protein and substrates. The 'leaf' conjugated-polyacrylates imparted coatings with versatile on-demand functionalities, such as resistance to over 99% biofouling in complex biofluids, pH-responsive performance, and robust adhesion with various nanomaterials. FINDINGS By synergistically leveraging the universal anchoring capabilities of BSA with the versatile physicochemical properties of polyacrylates, this study introduces a promising and facile strategy for imparting novel functionalities to a myriad of surfaces through engineering natural proteins and biomaterials for biotechnical and nanotechnical applications.
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Affiliation(s)
- Ziqian Zhao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Mingfei Pan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Wenshuai Yang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Charley Huang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Chenyu Qiao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Haoyu Yang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Jianmei Wang
- Heavy Machinery Engineering Research Center of Education Ministry, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Xiaogang Wang
- Heavy Machinery Engineering Research Center of Education Ministry, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Jifang Liu
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
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5
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You X, Shen L, Zhao Y, Zhao DL, Teng J, Lin H, Li R, Xu Y, Zhang M. Quantifying interfacial interactions for improved membrane antifouling: A novel approach using triangulation and surface element integration method. J Colloid Interface Sci 2023; 650:775-783. [PMID: 37441970 DOI: 10.1016/j.jcis.2023.06.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/28/2023] [Accepted: 06/17/2023] [Indexed: 07/15/2023]
Abstract
To gain a thorough understanding of interfacial behaviors such as adhesion and flocculation controlling membrane fouling, it is necessary to simulate the actual membrane surface morphology and quantify interfacial interactions. In this work, a new method integrating the rough membrane morphology reconstruction technology (atomic force microscopy (AFM) combining with triangulation technique), the surface element integration (SEI) method, the extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory, the compound Simpson's approach, and the computer programming was proposed. This new method can exactly mimic the real membrane surface in terms of roughness and shape, breaking the limitation of previous fractal theory and Gaussian method where the simulated membrane surface is only statistically similar to the real rough surface, thus achieving a precise description of the interfacial interactions between sludge foulants and the real membrane surface. This method was then applied to assess the antifouling propensity of a polyvinylidene fluoride (PVDF) membrane modified with Ni-ZnO particles (NZPs). The simulated results showed that the interfacial interactions between sludge foulants in a membrane bioreactor (MBR) and the modified PVDF-NZPs membrane transformed from an attractive force to a repulsive force. The phenomenon confirmed the significant antifouling propensity of the PVDF-NZPs membrane, which is highly consistent with the experimental findings and the interfacial interactions described in previous literature, suggesting the high feasibility and reliability of the proposed method. Meanwhile, the original programming code of the quantification was also developed, which further facilitates the widespread use of this method and enhances the value of this work.
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Affiliation(s)
- Xiujia You
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Ying Zhao
- Teachers' Colleges, Beijing Union University, 5 Waiguanxiejie Street, Chaoyang District, Beijing 100011, China.
| | - Die Ling Zhao
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Jiaheng Teng
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Renjie Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Yanchao Xu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Meijia Zhang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
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Wang C, Sun S, Zhang H, Zhang J, Li C, Chen W, Li S. Regulating the Charge Migration in CuInSe 2 /N-Doped Carbon Nanorod Arrays via Interfacial Engineering for Boosting Photoelectrochemical Water Splitting. Adv Sci (Weinh) 2023:e2300034. [PMID: 37088791 DOI: 10.1002/advs.202300034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/25/2023] [Indexed: 05/03/2023]
Abstract
Regulating the charge migration and separation in photoactive materials is a great challenge for developing photoelectrochemical (PEC) applications. Herein, inspired by capacitors, well-defined CuInSe2 /N-doped carbon (CISe/N-C) nanorod arrays are synthesized by Cu/In-metal organic frame-derived method. Like the charge process of capacitor, the N-doped carbon can capture the photogenerated electron of CISe, and the strong interfacial coupling between CISe and N-doped carbon can modulate the charge migration and separation. The optimized the CISe/N-C photoanode achieves a maximum photocurrent of 4.28 mA cm-2 at 1.23 V versus reversible hydrogen electrode (RHE) in neutral electrolyte solution under AM 1.5 G simulated sunlight (100 mW cm-2 ), which is 8.4 times higher than that of the CuInSe2 photoanode (0.51 mA cm-2 ). And a benefit of the strong electronic coupling between CISe and N-doped carbon, the charge transfer rate is increased to 1.3-13 times higher than that of CISe in the range of 0.6-1.1 V versus RHE. The interfacial coupling effects on modulating the carrier transfer dynamics are investigated by Kelvin probe force microscopy analysis and density functional theory calculation. This work provides new insights into bulk phase carrier modulation to improve the performance of photoanode for PEC water splitting.
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Affiliation(s)
- Cheng Wang
- Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Material Science and Engineering & School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, P. R. China
| | - Shengdong Sun
- Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Material Science and Engineering & School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, P. R. China
| | - Hui Zhang
- Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Material Science and Engineering & School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, P. R. China
| | - Jun Zhang
- Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Material Science and Engineering & School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, P. R. China
| | - Chuanhao Li
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Wei Chen
- Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Material Science and Engineering & School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, P. R. China
| | - Shikuo Li
- Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Material Science and Engineering & School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, P. R. China
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Ganjeh-Anzabi P, Jahandideh H, Kedzior SA, Trifkovic M. Precise quantification of nanoparticle surface free energy via colloidal probe atomic force microscopy. J Colloid Interface Sci 2023; 641:404-413. [PMID: 36940596 DOI: 10.1016/j.jcis.2023.03.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 02/01/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023]
Abstract
Interfacial interactions of nanoparticles (NPs) in colloids are greatly influenced by the NP surface free energy (SFE). Due to the intrinsic physical and chemical heterogeneity of the NP surface, measuring SFE is nontrivial. The use of direct force measurement methods, such as colloidal probe atomic force microscopy (CP-AFM), have been proven to be effective for the determination of SFE on relatively smooth surfaces, but fail to provide reliable measurements for rough surfaces generated by NPs. Here, we developed a reliable approach to determine the SFE of NPs by adopting Persson's contact theory to include the effect of surface roughness on the measurements in CP-AFM experiments. We obtain the SFE for a range of materials varying in surface roughness and surface chemistry. The reliability of the proposed method is verified by the SFE determination of polystyrene. Subsequently, the SFE of bare and functionalized silica, graphene oxide, and reduced graphene oxide were quantified and validity of the results was demonstrated. The presented method unlocks the potential of CP-AFM as a robust and reliable method of the SFE determination of nanoparticles with a heterogeneous surface, which is challenging to obtain with conventionally implemented experimental techniques.
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Affiliation(s)
- Pejman Ganjeh-Anzabi
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
| | - Heidi Jahandideh
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
| | - Stephanie A Kedzior
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
| | - Milana Trifkovic
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
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Lai S, Cheng C, Liao Y, Su X, Tan Q, Yang S, Bai S. The structure and properties of mechanochemically modified acrylonitrile butadiene rubber (NBR)/poly (vinyl chloride) (PVC) scraps and fresh NBR composites. Waste Manag 2023; 159:93-101. [PMID: 36739710 DOI: 10.1016/j.wasman.2023.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Vulcanized acrylonitrile-butadiene rubber (NBR)/poly (vinyl chloride) (PVC) blends are mainly served as insulation rubber-plastic materials. However, methods to reuse the waste NBR/PVC composites lack research. Here, we found that the mechanochemically modified waste NBR/PVC composites powders (WNPP) could be an alternative to fresh NBR. According to the results, the optimal replacement amount of WNPP for NBR was 20%, and the highest feasible proportion was 40%. WNPP treated by solid-state shear milling technology (S3M) would have a high degree of desulfurization, and the cross-linked chains within WNPP would be transformed into free chains. While co-vulcanizing, the sulfur agents and heat would induce the free chains of WNPP to react with the polymer chains of the NBR substrate, thereby generating dangling chains to form a robust interfacial layer. It was beneficial for the improvement of the mechanical properties of reclaimed products. And the strain of the excellent recycled sample (20C) reached 707%. Moreover, the modified WNPP in the co-vulcanized rubber represented heterogeneity because of the internal residual crosslinked network and the not-melting PVC plastic phase. Although the heterogeneity of WNPP damaged the continuity of the NBR matrix, it also brought a better hysteresis loss capability to the composite. In conclusion, this work expanded the mechanochemical application scope in recycling NBR/PVC wastes.
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Affiliation(s)
- Shuangxin Lai
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Chaofeng Cheng
- High-Tech Organic Fibers Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Yi Liao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Xingrui Su
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Qianyue Tan
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Shuangqiao Yang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Shibing Bai
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China.
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9
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Li R, Wu N, Xue H, Gao B, Liu H, Han T, Hu X, Tu Y, Zhao Y. Influence and effect mechanism of disulfide bonds linkages between protein-coated lipid droplets and the protein matrix on the physicochemical properties, microstructure, and protein structure of ovalbumin emulsion gels. Colloids Surf B Biointerfaces 2023; 223:113182. [PMID: 36736177 DOI: 10.1016/j.colsurfb.2023.113182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 01/19/2023] [Accepted: 01/27/2023] [Indexed: 02/02/2023]
Abstract
In this study, disulfide bonds between the interfacial protein film formed on the lipid particles and the protein in ovalbumin emulsion gels were blocked with 0, 1, 3, 5 and 10 mM of the N-ethylmaleimide (NEM) to explore the influence and effect mechanism of disulfide bonds between the interfacial proteins on the physicochemical properties, microstructure, and protein structure of sunflower oil-ovalbumin emulsion gels. Ovalbumin emulsion gels with NEM-treated ovalbumin emulsion (N-OE) had lower hardness, free sulfhydryl content, water holding capacity (WHC), and surface hydrophobicity, but higher spin-spin relaxation time (T2) than ovalbumin emulsion gels with NEM-treated ovalbumin substrate solution (N-OSS). In addition, N-OE and N-OSS had lower hardness, free sulfhydryl content, WHC and surface hydrophobicity, as well as a more coarse and disordered microstructure than non-NEM treated ovalbumin emulsion gel (control group). The free sulfhydryl content, hardness, WHC, and surface hydrophobicity of the ovalbumin emulsion gels all decreased as the NEM concentration rose (p < 0.05), whereas the amide A band changed to higher wave numbers. These results collectively indicated that the reduction of disulfide between the interfacial layer and the proteins inhibited the hydrophobic effect, the formation of hydrogen bonds, and prevented the formation of larger aggregates. Thus the disulfide bonds between the interfacial proteins contribute to the hardness enhancement and water stabilization of the ovalbumin gel.
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Affiliation(s)
- Ruiling Li
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Na Wu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China
| | - Hui Xue
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Binghong Gao
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Huilan Liu
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Tianfeng Han
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Xiaobo Hu
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Yonggang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Yan Zhao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China.
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10
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Cai YH, Gopalakrishnan A, Deshmukh KP, Schäfer AI. Renewable energy powered membrane technology: Implications of adhesive interaction between membrane and organic matter on spontaneous osmotic backwash cleaning. Water Res 2022; 221:118752. [PMID: 35810632 DOI: 10.1016/j.watres.2022.118752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/23/2022] [Accepted: 06/13/2022] [Indexed: 05/26/2023]
Abstract
Organic matter (OM) in surface and ground waters may cause membrane fouling that is laborious to clean once established. Spontaneous osmotic backwash (OB) induced by solar irradiance fluctuation has been demonstrated for early mineral scaling/organic fouling control in decentralised small-scale photovoltaic powered-nanofiltration/reverse osmosis (PV-NF/RO) membrane systems. However, various OM types will interact differently with membranes which in turn affects the effectiveness of OB. This work evaluates the suitability of spontaneous OB cleaning for eleven OM types (covering low-molecular-weight organics (LMWO), humic substances, polyphenolic compounds and biopolymers) regarding adhesive interactions with NF/RO membranes. The adhesive interactions were quantified by an asymmetric flow field-flow fractionation coupled with an organic carbon detector (FFFF-OCD). The underlying mechanism of OM-membrane adhesive interactions affecting OB cleaning was elucidated. The results indicate that humic acid (a typical humic substance) and tannic acid (a typical polyphenolic compound) induced stronger adhesive interaction with NF/RO membranes than biopolymers and LMWO. When the mass loss of an OM due to adhesion was below a critical range, the spontaneous OB is most effective (>85% flux recovery); and above this range, the OB becomes ineffective (<50% flux recovery). Polyphenolic compounds and humic substances resulted in lower OB cleaning efficiency, due to their higher aromatic content, enhancing hydrophobic interactions and hydrogen bonding. Calcium-facilitated adhesion of some OM types (such as humic substances, polyphenolics and biopolymers) increased irreversible organic fouling potential and weakened OB cleaning, which was verified by both FFFF-OCD and membrane filtration results. This work provides a guidance to formulate strategies to enhance spontaneous OB cleaning, such as first identifying the adhesion of OM in feedwater (surface and ground waters) using FFFF-OCD, and then removing "sticky" OM using suitable pre-treatment processes.
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Affiliation(s)
- Yang-Hui Cai
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Akhil Gopalakrishnan
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Kaumudi Pradeep Deshmukh
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Andrea I Schäfer
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
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11
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Zhu C, He Q, Yao H, Le S, Chen W, Chen C, Wang S, Duan X. Amino-functionalized NH 2-MIL-125(Ti)-decorated hierarchical flowerlike Znln 2S 4 for boosted visible-light photocatalytic degradation. Environ Res 2022; 204:112368. [PMID: 34774832 DOI: 10.1016/j.envres.2021.112368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/27/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
Developing novel heterojunction photocatalysts with visible-light response and remarkable photocatalytic activity have been verified to applying for the photodegradation of antibiotics in water environment. Herein, NH2-MIL-125(Ti) was integrated with flowerlike ZnIn2S4 to construct NH2-MIL-125(Ti)@ZnIn2S4 heterostructure using a one-pot solvothermal method. The photocatalytic performance was evaluated by the degradation of tetracycline (TC) under visible light illumination. The optimized NM(2%)@ZIS possesses a photodegradation rate (92.8%) and TOC removal efficiency (58.5%) superior to pristine components, which can be principally attributed to the positive cooperative effects of well-matched energy level positions, strong visible-light-harvesting capacity, and abundant coupling interfaces between the two. Moreover, the probable TC degradation mechanism was also clarified using the active species trapping experiments. This study inspires further design and construction of NH2-MIL-125(Ti) and ZnIn2S4 based photocatalysts for effective removal of antibiotics in water environment.
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Affiliation(s)
- Chengzhang Zhu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Qiuying He
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Haiqian Yao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Shukun Le
- Chemical Engineering College, Inner Mongolia University of Technology, Huhhot, 010051, China.
| | - Wenxia Chen
- School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, 476000, China.
| | - Chuanxiang Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Xiaoguang Duan
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
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12
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Zou M, Wu Y, Redmile-Gordon M, Wang D, Liu J, Huang Q, Cai P. Influence of surface coatings on the adhesion of Shewanella oneidensis MR-1 to hematite. J Colloid Interface Sci 2022; 608:2955-63. [PMID: 34844734 DOI: 10.1016/j.jcis.2021.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/19/2021] [Accepted: 11/06/2021] [Indexed: 11/22/2022]
Abstract
The adhesion of dissimilatory iron reducing bacteria (DIRB) to iron oxides is an important process to initiate direct extracellular electron transfer. Iron oxides in natural environments are often coated by organic matter or silica (SiO2) which alters their surface physicochemical properties. To investigate the influence of these surface coatings, we characterized the dynamic adhesion processes of Shewanella oneidensis MR-1 to bare hematite, humic acid-coated hematite (hematite-HA), and SiO2-coated hematite (hematite-SiO2) using Quartz Crystal Microbalance with Dissipation (QCM-D). The molecular-level process and mechanism were investigated using in situ Attenuated Total Reflectance - Fourier Transform Infrared (ATR-FTIR) spectrometry. We found that MR-1 formed a rigid bacterial layer on bare hematite. Coating with HA or SiO2 decreased the surface cell density during the initial adhesion stage, and compromised the stability of the subsequent bacterial attachment. The FTIR combined with two-dimensional correlation spectroscopy (2D-COS) analysis showed that C-moieties of polysaccharides dominated interactions in initial adhesion on HA and SiO2-coated hematite. In the longer term, the HA coating hindered the adsorption of amide, but promoted the binding of polysaccharide C-moieties to hematite. We concluded that, in general, both the HA and SiO2 coatings reduced the attachment of MR-1 on hematite. These results advance our understanding of the roles of surface coatings on microbe-mineral interactions, which has significant implications for a series of biogeochemical processes in nature.
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13
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Liu M, Wan X, Yang M, Wang Z, Bao H, Dai B, Liu H, Wang S. Thermo-Responsive Jamming of Nanoparticle Dense Suspensions towards Macroscopic Liquid-Solid Switchable Materials. Angew Chem Int Ed Engl 2021; 61:e202114602. [PMID: 34807500 DOI: 10.1002/anie.202114602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Indexed: 11/11/2022]
Abstract
Nanoparticle aggregation for constructing functional materials has shown enormous advantages in various applications. Most efforts focused on ordered nanoparticle aggregation for specific functions but were often limited to irreversible aggregation processes due to the thermodynamic equilibrium. Herein, we report a reversible disordered aggregation of SiO2 -PNIPAAm nanoparticles (SPNPs) through thermo-responsive jamming, obtaining smart liquid-solid switchable materials. The smart materials can display a switch between liquid-like state and solid-like state responding to a temperature change. This unique macroscopic behavior originates from the reversible disordered aggregation modulated by temperature-dependent hydrophobic interactions among the SPNPs. Notably, the materials at the solid-like state show anti-impact properties and can withstand the impact of a steel sphere with a speed of 328 cm s-1 . We envision that this finding offers inspiration to design smart liquid-solid switchable materials for impact protection.
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Affiliation(s)
- Mingqian Liu
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xizi Wan
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Man Yang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhao Wang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Han Bao
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bing Dai
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Huan Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Shutao Wang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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14
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Miao R, Feng Y, Wang Y, Wang P, Li P, Li X, Wang L. Exploring the influence mechanism of ozonation on protein fouling of ultrafiltration membranes as a result of the interfacial interaction of foulants at the membrane surface. Sci Total Environ 2021; 785:147340. [PMID: 33930806 DOI: 10.1016/j.scitotenv.2021.147340] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/25/2021] [Accepted: 04/20/2021] [Indexed: 05/09/2023]
Abstract
Ozonation was widely used before ultrafiltration processes, but its effect mechanism on protein fouling is still controversial. Ozonation of bovine serum albumin (BSA) solutions was performed in the present work. The interfacial forces of BSA at the membrane surface were measured before and after ozonation. The adsorption behaviour of BSA onto the membrane surface and the fouling layer structures under different ozone dosages were also investigated. These results were combined with the membrane fouling behaviour to identify the effect of ozonation on protein fouling. The results showed that ozonation could weaken the interaction forces between the membrane and BSA effectively, but this did not have any effect on membrane fouling. In contrast, in terms of membrane fouling behaviour after pre-ozonation, the contribution of the changes in the covalent disulfide bonds between BSA molecules outweighs those of the non-covalent bonds. The number of disulfide bonds gradually increased as the O3:DOC ratio increased from 0 to 0.3, and began to decline when the O3:DOC ratio was further increased to 0.45 and 0.6. This could have altered the deposition rate of foulants onto the membrane surface and the structure of the fouling layers, and may have caused the membrane fouling first to be enhanced and then to decline with increasing ozone dosages.
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Affiliation(s)
- Rui Miao
- Research Institute of Membrane Separation Technology of Shaanxi Province, Key Laboratory of Membrane Separation of Shaanxi Province, Key Laboratory of Northwest Water Resources, Key Laboratory of Environmental Engineering of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China; Department of Civil Engineering, the University of Hong Kong, Pokfulam, Hong Kong, China.
| | - Yaya Feng
- Research Institute of Membrane Separation Technology of Shaanxi Province, Key Laboratory of Membrane Separation of Shaanxi Province, Key Laboratory of Northwest Water Resources, Key Laboratory of Environmental Engineering of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China
| | - Yupeng Wang
- Research Institute of Membrane Separation Technology of Shaanxi Province, Key Laboratory of Membrane Separation of Shaanxi Province, Key Laboratory of Northwest Water Resources, Key Laboratory of Environmental Engineering of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China
| | - Pei Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China; Department of Civil Engineering, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Pu Li
- Department of Civil Engineering, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Xiaoyan Li
- Department of Civil Engineering, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Lei Wang
- Research Institute of Membrane Separation Technology of Shaanxi Province, Key Laboratory of Membrane Separation of Shaanxi Province, Key Laboratory of Northwest Water Resources, Key Laboratory of Environmental Engineering of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an 710055, China
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15
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Ryu HJ, Lee WK, Kim YH, Lee JS. Interfacial interactions of SERS-active noble metal nanostructures with functional ligands for diagnostic analysis of protein cancer markers. Mikrochim Acta 2021; 188:164. [PMID: 33844071 DOI: 10.1007/s00604-021-04807-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/22/2021] [Indexed: 12/27/2022]
Abstract
Noble metal nanostructures with designed hot spots have been widely investigated as surface-enhanced Raman spectroscopy (SERS)-active substrates, particularly for selective and sensitive detection of protein cancer markers. For specific target recognition and efficient signal amplification, SERS probe design requires a choice of SERS-active nanostructures as well as their controlled functionalization with Raman dyes and target recognition entities such as antibodies. However, the chemical conjugation of antibodies and Raman dyes to SERS substrates has rarely been discussed to date, despite their substantial roles in detection schemes. The interfacial interactions of metal nanostructures with functional ligands during conjugation are known to be strongly influenced by the various chemical and physical properties of the ligands, such as size, molecular weight, surface charge, 3-dimensional structures, and hydrophilicity/hydrophobicity. In this review, we discuss recent developments in the design of SERS probes over the last 4 years, focusing on their conjugation chemistry for functionalization. A strong preference for covalent bonding is observed with Raman dyes having simpler molecular structures, whereas more complicated ones are non-covalently adsorbed. Antibodies are both covalently and non-covalently bonded to nanostructures, depending on their activity in the SERS probes. Considering that ligand conjugation is highly important for chemical stability, biocompatibility, and functionality of SERS probes, this review is expected to expand the understanding of their interfacial design, leading to SERS as one of the most promising spectroscopic analytical tools for the early detection of protein cancer markers.
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Affiliation(s)
- Han-Jung Ryu
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Won Kyu Lee
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Yoon Hyuck Kim
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jae-Seung Lee
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
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16
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Wang J, Zeng H. Recent advances in electrochemical techniques for characterizing surface properties of minerals. Adv Colloid Interface Sci 2021; 288:102346. [PMID: 33383471 DOI: 10.1016/j.cis.2020.102346] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/12/2020] [Accepted: 12/13/2020] [Indexed: 10/22/2022]
Abstract
Electrochemical techniques are very useful tools for characterizing the surface properties of natural minerals involved in electrochemical reactions. This work reviews the recent advances in electrochemical characterizations of minerals by employing various electrochemical techniques, i.e., open circuit potential, chronoamperometry, potential sweep voltammetry, electrochemical impedance spectroscopy, and electrochemical scanning probe techniques. The fundamental working principles of these electrochemical techniques and their applications for mineral surface characterizations in various research areas, including mineral flotation, mineral leaching, electrocatalysis, energy storage materials and environmental issues, are highlighted. Valuable information such as the redox condition of substrate surface, the current response of substrate with time under polarization, the identification of redox reaction and its kinetics on substrate surface, the structure of substrate/electrolyte interface, and the local electrochemical response on substrate surface at micro-/nano-scale can be obtained by open circuit potential, chronoamperometry, potential sweep voltammetry, electrochemical impedance spectroscopy, and scanning electrochemical microscopy, respectively. Some remaining challenges and future perspectives are discussed. These recent advances in electrochemical techniques can be readily applied to characterize the surface properties and interfacial interactions of a wide variety of material systems and in different engineering processes.
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17
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Ahmadi M, Hou Q, Wang Y, Chen Z. Interfacial and molecular interactions between fractions of heavy oil and surfactants in porous media: Comprehensive review. Adv Colloid Interface Sci 2020; 283:102242. [PMID: 32858410 DOI: 10.1016/j.cis.2020.102242] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 02/02/2023]
Abstract
The oil production by the natural energy in oil reservoirs is decreasing gradually. Only 25-30% of the world's reservoirs can be produced naturally, and different methods are employed to recover the remaining oil. The use of surfactants is one of the promising methods for unlocking the residual oil after natural depletion. In such a method, one of the main challenges is to study how surfactant, oil, and water interact and how porous media affect these interactions. Molecular dynamics (MD) simulation provides an opportunity to gain insights into this challenge. MD simulation can be used to study interactions between surfactant, oil, and water statically and dynamically in porous media. This paper presents a comprehensive review of interactions between surfactants and fractions of oil/heavy oil, including asphaltene, resin, aromatics, and saturates. Also, it explains the probable mechanisms of oil detachment from reservoir rock in the presence of surfactants. A thorough grasp of molecular interactions between surface-active agents and different fractions of oil helps us to develop successful surfactant-based oil recovery methods.
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18
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Teng J, Shen L, He Y, Liao BQ, Wu G, Lin H. Novel insights into membrane fouling in a membrane bioreactor: Elucidating interfacial interactions with real membrane surface. Chemosphere 2018; 210:769-778. [PMID: 30036825 DOI: 10.1016/j.chemosphere.2018.07.086] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 07/05/2018] [Accepted: 07/15/2018] [Indexed: 06/08/2023]
Abstract
While governing adhesion/deposition of various foulants on membrane surface and membrane fouling in membrane bioreactors (MBRs), interfacial interactions with real membrane surface have not yet been fully quantified. In this study, theoretical deduction and experiments were carried out to numerically elucidate interfacial interactions in a MBR. A continuous real membrane morphology was reconstructed based on atomic force microscopy (AFM) characterization and triangulation technique. Thereafter, a method to calculate those interactions was established by incorporating the spatial relationship between a foulant and the reconstructed morphology into surface element integration (SEI) method. A case study of the proposed method was conducted. With surface characterization of the foulants and membrane, the interfacial interactions with real membrane morphology were approximated for the first time by computer programming according to composite Simpson's rule. The results showed that rough morphology prolonged the interfacial interactions, indicating the profound role of morphology in the interfacial interactions related with membrane fouling. The new method would provide significant insights into membrane fouling in MBRs.
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Affiliation(s)
- Jiaheng Teng
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yiming He
- Department of Materials Physics, Zhejiang Normal University, Jinhua, 321004, China
| | - Bao-Qiang Liao
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1, Canada
| | - Guosheng Wu
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1, Canada
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
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19
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Zaouri N, Gutierrez L, Dramas L, Garces D, Croue JP. Interfacial interactions between Skeletonema costatum extracellular organic matter and metal oxides: Implications for ceramic membrane filtration. Water Res 2017; 116:194-202. [PMID: 28340417 DOI: 10.1016/j.watres.2017.03.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 06/06/2023]
Abstract
In the current study, the interfacial interactions between the high molecular weight (HMW) compounds of Skeletonema costatum (SKC) extracellular organic matter (EOM) and ZrO2 or Al2O3, were investigated by atomic force microscopy (AFM). HMW SKC-EOM was rigorously characterized and described as a hydrophilic organic compound mainly comprised of polysaccharide-like structures. Lipids and proteins were also observed, although in lower abundance. HMW SKC-EOM displayed attractive forces during approaching (i.e., leading to jump-to-contact events) and adhesion forces during retracting regime to both metal oxides at all solution conditions tested, where electrostatics and hydrogen bonding were suggested as dominant interacting mechanisms. However, the magnitude of these forces was significantly higher on ZrO2 surfaces, irrespective of cation type (Na+ or Ca2+) or concentration. Interestingly, while HMW SKC-EOM interacting forces to Al2O3 were practically insensitive to solution chemistry, the interactions between ZrO2 and HMW SKC-EOM increased with increasing cation concentration in solution. The structure, and lower charge, hydrophilicity, and density of hydroxyl groups on ZrO2 surface would play a key role on favoring zirconia associations with HMW SKC-EOM. The current results contribute to advance our fundamental understanding of Algogenic Organic Matter (AOM) interfacial interactions with metal oxides (i.e., AOM membrane fouling), and would highly assist in the proper selection of membrane material during episodic algal blooms.
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Affiliation(s)
- Noor Zaouri
- Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Saudi Arabia
| | - Leonardo Gutierrez
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, Australia; Facultad del Mar y Medio Ambiente, Universidad Del Pacifico, Guayaquil, Ecuador
| | - Laure Dramas
- Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Saudi Arabia
| | - Daniel Garces
- Escuela Superior Politécnica del Litoral, Facultad de Ingeniería en Ciencias de la Tierra, Ecuador
| | - Jean-Philippe Croue
- Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Saudi Arabia; Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, Australia.
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Chen J, Lin H, Shen L, He Y, Zhang M, Liao BQ. Realization of quantifying interfacial interactions between a randomly rough membrane surface and a foulant particle. Bioresour Technol 2017; 226:220-228. [PMID: 28002782 DOI: 10.1016/j.biortech.2016.12.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/02/2016] [Accepted: 12/06/2016] [Indexed: 06/06/2023]
Abstract
Quantification of interfacial interaction with randomly rough surface is the prerequisite to quantitatively understand and control the interface behaviors such as adhesion, flocculation and membrane fouling. In this study, it was found that membrane surface was randomly rough with obvious fractal characteristics. The randomly rough surface of membrane could be well reconstructed by the fractal geometry represented by a modified Weierstrass-Mandelbrot function. A novel method, which combined composite Simpson's approach, surface element integration method and approximation by computer programming, was developed. By using this method, this study provided the first realization of quantifying interfacial energy between randomly rough surface of membrane and a foulant particle. The calculated interactions with randomly rough surface of membrane were significantly different from those with smooth surface of membrane, indicating the significant effect of surface topography on interactions. This proposed method could be also potentially used to investigate various natural interface environmental phenomena.
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Affiliation(s)
- Jianrong Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China.
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
| | - Yiming He
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, PR China
| | - Meijia Zhang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China; Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Bao-Qiang Liao
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
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21
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Abstract
We report single drop electroanalytical measurements of pharmaceutically and biologically relevant compounds using screen printed electrodes (SPEs) modified with carboxylated multiwalled carbon nanotubes (MWCNT-COOH) as the sensor surface. Acetaminophen, nicotine, ascorbic acid, and nicotinamide adenine dinucleotide reduced form (NADH) were detected in a single drop of solution. We show that combined polar and nonpolar interactions of analytes with -COOH functional groups and large surface area of MWCNT, respectively, allow highly sensitive analyte detection with wide dynamic range. Smaller analytes can bind to a significantly greater number of sensor sites than the bulkier analytes and offer better detection sensitivity. Results suggest that sensitivity is controlled by predominant nonpolar interactions that an analyte can undergo with the MWCNT-COOH SPE sensor surface, whereas limit of detection is controlled by the extent of polar interactions between an analyte and the sensor surface, facilitating interfacial charge transport and an electrochemical signal output. Furthermore, a combination of polar and nonpolar analyte interactions with the sensor surface shows a synergistic effect on sensitivity and detection limit. This could be a likely reason for why sensitivity does not need to always correlate with lower detection limits as variations in the interfacial interactions are critical. Application of the designed single drop method to real samples was validated by estimating the amounts of acetaminophen, nicotine, ascorbic acid, and NADH in commercially available pharmaceuticals with excellent recovery.
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Affiliation(s)
- Charuksha Walgama
- C. Walgama, M. Gallman, S. Krishnan, Department of Chemistry, Oklahoma State University, Stillwater, OK, USA 74078
| | - Matthew Gallman
- C. Walgama, M. Gallman, S. Krishnan, Department of Chemistry, Oklahoma State University, Stillwater, OK, USA 74078
| | - Sadagopan Krishnan
- C. Walgama, M. Gallman, S. Krishnan, Department of Chemistry, Oklahoma State University, Stillwater, OK, USA 74078
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22
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Willems N, Lelimousin M, Koldsø H, Sansom MSP. Interfacial activation of M37 lipase: A multi-scale simulation study. Biochim Biophys Acta Biomembr 2016; 1859:340-349. [PMID: 27993564 PMCID: PMC5287222 DOI: 10.1016/j.bbamem.2016.12.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 10/31/2016] [Accepted: 12/15/2016] [Indexed: 11/25/2022]
Abstract
Lipases are enzymes of biotechnological importance that function at the interface formed between hydrophobic and aqueous environments. Hydrophobic interfaces can induce structural transitions in lipases that result in an increase in enzyme activity, although the detailed mechanism of this process is currently not well understood for many lipases. Here, we present a multi-scale molecular dynamics simulation study of how different interfaces affect the conformational dynamics of the psychrophilic lipase M37. Our simulations show that M37 lipase is able to interact both with anionic lipid bilayers and with triglyceride surfaces. Interfacial interactions with triglyceride surfaces promote large-scale motions of the lid region of M37, spanning residues 235-283, revealing an entry pathway to the catalytic site for substrates. Importantly, these results suggest a potential activation mechanism for M37 that deviates from other related enzymes, such as Thermomyces lanuginosus lipase. We also investigated substrate binding in M37 by using steered MD simulations, confirming the open state of this lipase. The exposure of hydrophobic residues within lid and active site flap regions (residues 94-110) during the activation process provides insights into the functional effect of hydrophobic surfaces on lipase activation.
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Affiliation(s)
- Nathalie Willems
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Mickaël Lelimousin
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Heidi Koldsø
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Mark S P Sansom
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom.
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23
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Zhao L, Zhang M, He Y, Chen J, Hong H, Liao BQ, Lin H. A new method for modeling rough membrane surface and calculation of interfacial interactions. Bioresour Technol 2016; 200:451-7. [PMID: 26519696 DOI: 10.1016/j.biortech.2015.10.055] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 05/26/2023]
Abstract
Membrane fouling control necessitates the establishment of an effective method to assess interfacial interactions between foulants and rough surface membrane. This study proposed a new method which includes a rigorous mathematical equation for modeling membrane surface morphology, and combination of surface element integration (SEI) method and the composite Simpson's approach for assessment of interfacial interactions. The new method provides a complete solution to quantitatively calculate interfacial interactions between foulants and rough surface membrane. Application of this method in a membrane bioreactor (MBR) showed that, high calculation accuracy could be achieved by setting high segment number, and moreover, the strength of three energy components and energy barrier was remarkably impaired by the existence of roughness on the membrane surface, indicating that membrane surface morphology exerted profound effects on membrane fouling in the MBR. Good agreement between calculation prediction and fouling phenomena was found, suggesting the feasibility of this method.
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Affiliation(s)
- Leihong Zhao
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China; Department of Materials Physics, Zhejiang Normal University, Jinhua 321004, PR China
| | - Meijia Zhang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
| | - Yiming He
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, PR China
| | - Jianrong Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
| | - Huachang Hong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
| | - Bao-Qiang Liao
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China.
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24
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Wang CQ, Wang H, Gu GH, Fu JG, Lin QQ, Liu YN. Interfacial interactions between plastic particles in plastics flotation. Waste Manag 2015; 46:56-61. [PMID: 26337962 DOI: 10.1016/j.wasman.2015.08.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/25/2015] [Accepted: 08/28/2015] [Indexed: 06/05/2023]
Abstract
Plastics flotation used for recycling of plastic wastes receives increasing attention for its industrial application. In order to study the mechanism of plastics flotation, the interfacial interactions between plastic particles in flotation system were investigated through calculation of Lifshitz-van der Waals (LW) function, Lewis acid-base (AB) Gibbs function, and the extended Derjaguin-Landau-Verwey-Overbeek potential energy profiles. The results showed that van der Waals force between plastic particles is attraction force in flotation system. The large hydrophobic attraction, caused by the AB Gibbs function, is the dominant interparticle force. Wetting agents present significant effects on the interfacial interactions between plastic particles. It is found that adsorption of wetting agents promotes dispersion of plastic particles and decreases the floatability. Pneumatic flotation may improve the recovery and purity of separated plastics through selective adsorption of wetting agents on plastic surface. The relationships between hydrophobic attraction and surface properties were also examined. It is revealed that there exists a three-order polynomial relationship between the AB Gibbs function and Lewis base component. Our finding provides some insights into mechanism of plastics flotation.
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Affiliation(s)
- Chong-qing Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Resource Chemistry of Nonferrous Metals, Ministry of Education, Central South University, Changsha, Hunan 410083, China.
| | - Hui Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Resource Chemistry of Nonferrous Metals, Ministry of Education, Central South University, Changsha, Hunan 410083, China.
| | - Guo-hua Gu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China.
| | - Jian-gang Fu
- School of Chemistry and Chemical Engineering, Key Laboratory of Resource Chemistry of Nonferrous Metals, Ministry of Education, Central South University, Changsha, Hunan 410083, China.
| | - Qing-quan Lin
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China.
| | - You-nian Liu
- School of Chemistry and Chemical Engineering, Key Laboratory of Resource Chemistry of Nonferrous Metals, Ministry of Education, Central South University, Changsha, Hunan 410083, China.
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25
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Müller P, Kapin É, Fekete E. Effects of preparation methods on the structure and mechanical properties of wet conditioned starch/montmorillonite nanocomposite films. Carbohydr Polym 2014; 113:569-76. [PMID: 25256520 DOI: 10.1016/j.carbpol.2014.07.054] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 07/17/2014] [Accepted: 07/18/2014] [Indexed: 11/25/2022]
Abstract
TPS/Na-montmorillonite nanocomposite films were prepared by solution and melt blending. Clay content changed between 0 and 25 wt% based on the amount of dry starch. Structure, tensile properties, and water content of wet conditioned films were determined as a function of clay content. Intercalated structure and VH-type crystallinity of starch were found for all the nanocomposites independently of clay and plasticizer content or preparation method, but at larger than 10 wt% clay content nanocomposites prepared by melt intercalation contained aggregated particles as well. In spite of the incomplete exfoliation clay reinforces TPS considerably. Preparation method has a strong influence on mechanical properties of wet conditioned films. Mechanical properties of the conditioned samples prepared by solution homogenization are much better than those of nanocomposites prepared by melt blending. Water, which was either adsorbed or bonded in the composites in conditioning or solution mixing process, respectively, has different effect on mechanical properties.
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Affiliation(s)
- Péter Müller
- Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, PO Box 91, H-1521 Budapest, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, PO Box 17, H-1525 Budapest, Hungary
| | - Éva Kapin
- Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, PO Box 91, H-1521 Budapest, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, PO Box 17, H-1525 Budapest, Hungary
| | - Erika Fekete
- Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, PO Box 91, H-1521 Budapest, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, PO Box 17, H-1525 Budapest, Hungary.
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