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Uysal Y, Doğaroğlu ZG, Makas MN, Çaylali Z. Boosting Water Retention in Agriculture: Vine Biochar-Doped Hydrogels' Swelling and Germination Effects. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2300254. [PMID: 38745560 PMCID: PMC11090214 DOI: 10.1002/gch2.202300254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/26/2023] [Indexed: 05/16/2024]
Abstract
Water scarcity presents a formidable challenge to agriculture, particularly in arid, semiarid, and rainfed settings. In agricultural contexts, hydrogels serve as granular agents for water retention, undergoing considerable expansion upon water exposure. They assume versatile roles encompassing soil-water retention, the dispensation of nutrients and pesticides, seed encapsulation, erosion mitigation, and even food supplementation. This study's objective involves the examination of biochar-infused hydrogels, fashioned by incorporating vine pruning waste-derived biochars, and the assessment of swelling behaviors in various aqueous environments encompassing deionized, tap, and saline water at concentrations of 0.5-1%. Characterizations of the vine-biochars-VB and biochar-incorporated hydrogels-VBHG are executed, with particular attention to their swelling properties across diverse media. As an initial step toward appraising their agricultural relevance, these hydrogels are introduced to a germination medium featuring wheat seeds to discern potential influences on germination dynamics. The maximum swelling capacity of VBHG is recorded in deionized water, tap water at pH 7.0, tap water at pH 9.0, saline water at 0.5%, and saline water at 1%, reaching 352%, 207%, 230%, 522%, and 549%, respectively. Remarkably, the 0.5% VBHG treatment exhibits the most pronounced root elongation. The application of hydrogels in agriculture exhibits promise, particularly within drought-related contexts and potential soilless applications.
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Affiliation(s)
- Yağmur Uysal
- Mersin UniversityEngineering FacultyEnvironmental Engineering DepartmentMersin33343Turkey
| | | | - Mehmet Nuri Makas
- Mersin UniversityEngineering FacultyEnvironmental Engineering DepartmentMersin33343Turkey
| | - Zehranur Çaylali
- Mersin UniversityEngineering FacultyEnvironmental Engineering DepartmentMersin33343Turkey
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2
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Kumar H, Kimta N, Guleria S, Cimler R, Sethi N, Dhanjal DS, Singh R, Duggal S, Verma R, Prerna P, Pathera AK, Alomar SY, Kuca K. Valorization of non-edible fruit seeds into valuable products: A sustainable approach towards circular bioeconomy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171142. [PMID: 38387576 DOI: 10.1016/j.scitotenv.2024.171142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/03/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Global imperatives have recently shown a paradigm shift in the prevailing resource utilization model from a linear approach to a circular bioeconomy. The primary goal of the circular bioeconomy model is to minimize waste by effective re-usage of organic waste and efficient nutrient recycling. In essence, circular bioeconomy integrates the fundamental concept of circular economy, which strives to offer sustainable goods and services by leveraging biological resources and processes. Notably, the circular bioeconomy differs from conventional waste recycling by prioritizing the safeguarding and restoration of production ecosystems, focusing on harnessing renewable biological resources and their associated waste streams to produce value-added products like food, animal feed, and bioenergy. Amidst these sustainability efforts, fruit seeds are getting considerable attention, which were previously overlooked and commonly discarded but were known to comprise diverse chemicals with significant industrial applications, not limited to cosmetics and pharmaceutical industries. While, polyphenols in these seeds offer extensive health benefits, the inadequate conversion of fruit waste into valuable products poses substantial environmental challenges and resource wastage. This review aims to comprehend the known information about the application of non-edible fruit seeds for synthesising metallic nanoparticles, carbon dots, biochar, biosorbent, and biodiesel. Further, this review sheds light on the potential use of these seeds as functional foods and feed ingredients; it also comprehends the safety aspects associated with their utilization. Overall, this review aims to provide a roadmap for harnessing the potential of non-edible fruit seeds by adhering to the principles of a sustainable circular bioeconomy.
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Affiliation(s)
- Harsh Kumar
- Centre of Advanced Technologies, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic
| | - Neetika Kimta
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India
| | - Shivani Guleria
- Department of Biotechnology, TIFAC-Centre of Relevance and Excellence in Agro and Industrial Biotechnology (CORE), Thapar Institute of Engineering and Technology, Patiala 147001, India
| | - Richard Cimler
- Centre of Advanced Technologies, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic
| | - Nidhi Sethi
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143005, India
| | - Daljeet Singh Dhanjal
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Reena Singh
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Sampy Duggal
- Department of Ayurveda & Health Sciences, Abhilashi University, Mandi 175028, India
| | - Rachna Verma
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India.
| | - Prerna Prerna
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala 147001, India
| | | | - Suliman Y Alomar
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic; Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic.
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Sahu JN, Dhaouadi F, Sellaoui L, Khor LX, Lee SY, Daud WMAW, Chebaane S, Bouzidi M, Guergueb M, Bonilla-Petriciolet A, Lamine AB. Physicochemical assessment of ammonium adsorption using a palm shell-based adsorbent activated with acetic acid: experimental and theoretical studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:27980-27987. [PMID: 38526713 DOI: 10.1007/s11356-024-33002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/16/2024] [Indexed: 03/27/2024]
Abstract
The adsorption of ammonium from water was studied on an activated carbon obtained using raw oil palm shell and activated with acetic acid. The performance of this adsorbent was tested at different operating conditions including the solution pH, adsorbent dosage, and initial ammonium concentration. Kinetic and equilibrium studies were carried out, and their results were analyzed with different models. For the adsorption kinetics, the pseudo-first order equation was the best model to correlate this system. Calculated adsorption rate constants ranged from 0.071 to 0.074 g/mg min. The ammonium removal was 70-80% at pH 6-8, and it was significantly affected by electrostatic interaction forces. Ammonium removal (%) increased with the adsorbent dosage, and neutral pH condition favored the adsorption of this pollutant. The best ammonium adsorption conditions were identified with a response surface methodology model where the maximum removal was 91.49% with 2.27 g/L of adsorbent at pH 8.11 for an initial ammonium concentration of 36.90 mg/L. The application of a physical monolayer model developed by statistical physics theory indicated that the removal mechanism of ammonium was multi-ionic and involved physical interactions with adsorption energy of 29 kJ/mol. This activated carbon treated with acetic acid is promising to depollute aqueous solutions containing ammonium.
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Affiliation(s)
- Jaya Narayan Sahu
- Institute of Chemical Technology, Faculty of Chemistry, University of Stuttgart, D-70550, Stuttgart, Germany
- South Ural State University (National Research University), Chelyabinsk, Russian Federation, 454080
| | - Fatma Dhaouadi
- Laboratory of Quantum and Statistical Physics, LR18ES18, Department of Physics, Faculty of Sciences of Monastir, Monastir University, 5000, Monastir, Tunisia
| | - Lotfi Sellaoui
- Laboratory of Quantum and Statistical Physics, LR18ES18, Department of Physics, Faculty of Sciences of Monastir, Monastir University, 5000, Monastir, Tunisia.
- CRMN, Centre for Research on Microelectronics and Nanotechnology of Sousse, NANOMISENE, LR16CRMN01, Code Postal, 4054, Sousse, Tunisia.
| | - Lean Xin Khor
- Chemical Engineering Department, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Soo-Ying Lee
- Chemical Engineering Department, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Wan Mohd Ashri Wan Daud
- Chemical Engineering Department, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Saleh Chebaane
- Department of Physics, College of Science, University of Ha'il, P.O. Box 2240, Ha'il, Saudi Arabia
| | - Mohamed Bouzidi
- Department of Physics, College of Science, University of Ha'il, P.O. Box 2240, Ha'il, Saudi Arabia
- Laboratoire de recherche sur les Hétéro-Epitaxies et Applications (LRHEA), Departement de Physique, Faculté des Sciences de Monastir, Université de Monastir, 5000, Monastir, Tunisia
| | - Mouhieddinne Guergueb
- Laboratory of Physico-Chemistry of Materials, Department of Physics, University of Monastir, 5000, Monastir, Tunisia
| | - Adrian Bonilla-Petriciolet
- Department of Chemical Engineering, InstitutoTecnológico de Aguascalientes, Aguascalientes, 20256, México
| | - Abdelmottaleb Ben Lamine
- Laboratory of Quantum and Statistical Physics, LR18ES18, Department of Physics, Faculty of Sciences of Monastir, Monastir University, 5000, Monastir, Tunisia
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Choi H, Kim T. Adsorption and quantitative fluorescence-based measurement of ammonium ions using a chitosan-based hydrogel combined with p-hydroxybenzoic acid. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Panic VV, Jovanovic JD, Popovic IG, Savic SI, Markovic MD, Spasojevic PM, Adnadjevic BK. The study of composition-properties relationships for composite hydrogels based on poly(methacrylic acid) and high concentrations of MFI zeolite. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Enhanced adsorptive removal of ammonium on the Na+/Al3+ enriched natural zeolite. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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López-Rosales L, López-García P, Benyachou MA, Molina-Miras A, Gallardo-Rodríguez JJ, Cerón-García MC, Sánchez Mirón A, García-Camacho F. Treatment of secondary urban wastewater with a low ammonium-tolerant marine microalga using zeolite-based adsorption. BIORESOURCE TECHNOLOGY 2022; 359:127490. [PMID: 35724909 DOI: 10.1016/j.biortech.2022.127490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/11/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
The low tolerance of marine microalgae to ammonium and hyposalinity limits their use in urban wastewater (UWW) treatments. In this study, using the marine microalga Amphidinium carterae, it is demonstrated for the first time that this obstacle can be overcome by introducing a zeolite-based adsorption step to obtain a tolerable UWW stream. The maximum ammonium adsorption capacities measured in the natural zeolite used are among the highest reported. The microalga grows satisfactorily in mixtures of zeolite-treated UWW and seawater at a wide range of proportions, both with and without adjusting the salinity, as long as the ammonium concentration is below the threshold tolerated by the microalgae (6.3 mg L-1). A proof of concept performed in 10-L bubble column photobioreactors with different culture strategies, including medium recycling, showed an enhanced biomass yield relative to a control with no UWW. No noticeable effect was observed on the production of specialty metabolites.
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Affiliation(s)
- L López-Rosales
- Chemical Engineering Department, University of Almería, Almería 04120, Spain; Research Center CIAMBITAL, University of Almería, Almería 04120, Spain
| | - P López-García
- Chemical Engineering Department, University of Almería, Almería 04120, Spain
| | - M A Benyachou
- Chemical Engineering Department, University of Almería, Almería 04120, Spain
| | - A Molina-Miras
- Chemical Engineering Department, University of Almería, Almería 04120, Spain
| | - J J Gallardo-Rodríguez
- Chemical Engineering Department, University of Almería, Almería 04120, Spain; Research Center CIAMBITAL, University of Almería, Almería 04120, Spain
| | - M C Cerón-García
- Chemical Engineering Department, University of Almería, Almería 04120, Spain; Research Center CIAMBITAL, University of Almería, Almería 04120, Spain
| | - A Sánchez Mirón
- Chemical Engineering Department, University of Almería, Almería 04120, Spain; Research Center CIAMBITAL, University of Almería, Almería 04120, Spain
| | - F García-Camacho
- Chemical Engineering Department, University of Almería, Almería 04120, Spain; Research Center CIAMBITAL, University of Almería, Almería 04120, Spain.
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8
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Synthesis of novel hierarchical porous zeolitization ceramsite from industrial waste as efficient adsorbent for separation of ammonia nitrogen. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121418] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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9
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Maaloul N, Oulego P, Rendueles M, Ghorbal A, Díaz M. Enhanced Cu(II) adsorption using sodium trimetaphosphate-modified cellulose beads: equilibrium, kinetics, adsorption mechanisms, and reusability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:46523-46539. [PMID: 32696406 DOI: 10.1007/s11356-020-10158-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
The current study is focused on the simple synthesis of two novel biosorbent beads: BASB/STMP and CNFB/STMP, derived respectively from bleached almond shell (BAS) and cellulose nanofiber from almond shell (CNF) by means of chemical crosslinking with sodium trimetaphosphate (STMP). These biosorbents were thoroughly characterized in terms of structure (FTIR), texture (N2 adsorption-desorption), thermal behavior (TGA/DTG), morphology (SEM), and surface properties (XPS). The adsorption kinetics of Cu(II) ions onto BASB/STMP and CNFB/STMP materials proved the chemisorption interaction between Cu(II) ions and the STMP functionalized beads. The BASB/STMP equilibrium data were successfully described by the Redlich-Peterson model and the CNFB/STMP data by the Sips model which disclosed maximum adsorption capacities of 141.44 mg g-1 and 147.90 mg g-1, respectively. Furthermore, the BASB/STMP bioadsorbent offers easy regeneration and better reusability with high efficiency (> 83%). This study sheds light on the preparation of low-cost adsorbents for wastewater treatment in order to improve the competitiveness and eco-friendliness of agrowaste-based processes.
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Affiliation(s)
- Najeh Maaloul
- Applied Thermodynamic Research Laboratory LR18ES33, National Engineering School of Gabes, University of Gabes, Avenue Omar Ibn El Khattab, 6029, Gabes, Tunisia
| | - Paula Oulego
- Department of Chemical and Environmental Engineering, University of Oviedo, C/ Julián Clavería s/n, E-33071, Oviedo, Spain
| | - Manuel Rendueles
- Department of Chemical and Environmental Engineering, University of Oviedo, C/ Julián Clavería s/n, E-33071, Oviedo, Spain
| | - Achraf Ghorbal
- Applied Thermodynamic Research Laboratory LR18ES33, National Engineering School of Gabes, University of Gabes, Avenue Omar Ibn El Khattab, 6029, Gabes, Tunisia
- Higher Institute of Applied Sciences and Technology of Gabes, University of Gabes, Avenue Omar Ibn El Khattab, 6029, Gabes, Tunisia
| | - Mario Díaz
- Department of Chemical and Environmental Engineering, University of Oviedo, C/ Julián Clavería s/n, E-33071, Oviedo, Spain.
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10
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Zhang X, Liu Y. Circular economy-driven ammonium recovery from municipal wastewater: State of the art, challenges and solutions forward. BIORESOURCE TECHNOLOGY 2021; 334:125231. [PMID: 33962161 DOI: 10.1016/j.biortech.2021.125231] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
In current biological nitrogen removal (BNR) processes, most of ammonium in municipal wastewater is biologically transformed to nitrogen gas, making ammonium recovery impossible. Thus, this article aims to provide a holistic review with in-depth discussions on (i) current BNR processes for municipal wastewater treatment, (ii) environmental and economic costs behind ammonium in municipal wastewater, (iii) state of the art of ammonium recovery from municipal wastewater including anaerobic membrane bioreactor turning municipal wastewater to a liquid fertilizer, capturing ammonium in phototrophic biomass, waste activated sludge for land application, bioelectrochemical systems, biological conversion of ammonium to nitrous oxide as a fuel oxidizer, and adsorption, (iv) feasibility and challenge of adsorption for ammonium recovery from municipal wastewater and (v) innovative municipal wastewater reclamation processes coupled with ammonium recovery. Moving forward, municipal wastewater reclamation and resource recovery should be addressed under the framework of circular economy.
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Affiliation(s)
- Xiaoyuan Zhang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Yu Liu
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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Wang K, Zhou Z, Yu S, Qiang J, Yuan Y, Qin Y, Xiao K, Zhao X, Wu Z. Compact wastewater treatment process based on abiotic nitrogen management achieved high-rate and facile pollutants removal. BIORESOURCE TECHNOLOGY 2021; 330:124991. [PMID: 33743281 DOI: 10.1016/j.biortech.2021.124991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
Chemically enhanced primary treatment (CEPT), ammonium ion exchange and regeneration (AIR) and membrane bioreactor (MBR) were coupled as CAIRM to treat domestic wastewater compactly and efficiently. CAIRM achieved efficient removal of chemical oxygen demand, ammonia nitrogen, total nitrogen (TN) and total phosphorus with total hydraulic retention time of 4.6 h, and obtained 2.3 ± 0.9 mg/L TN in the effluent. CEPT removed phosphate and impurities and prevented AIR from pollution. AIR maintained excellent nitrogen removal with a slight decrease in the exchange capacity of ion exchangers. MBR polished the effluent from AIR, and the larger particle size and better dewaterability of sludge mitigated the membrane fouling. Many heterotrophic genera, such as Rhodobacter and Defluviimonas, were enriched in the oligotrophic MBR. This study demonstrates the viability and stability of CAIRM in efficient wastewater treatment, which will address critical challenges in insufficient nitrogen removal and high land occupancy of current processes.
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Affiliation(s)
- Kaichong Wang
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Zhen Zhou
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Siqi Yu
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Jiaxin Qiang
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Yao Yuan
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Yangjie Qin
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Kaiqi Xiao
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Xiaodan Zhao
- Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Zhichao Wu
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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Guo JW, Wang CF, Lai JY, Lu CH, Chen JK. Poly(N-isopropylacrylamide)-gelatin hydrogel membranes with thermo-tunable pores for water flux gating and protein separation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118732] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Thermo-Tunable Pores and Antibiotic Gating Properties of Bovine Skin Gelatin Gels Prepared with Poly(n-isopropylacrylamide) Network. Polymers (Basel) 2020; 12:polym12092156. [PMID: 32971759 PMCID: PMC7570140 DOI: 10.3390/polym12092156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/11/2020] [Accepted: 09/18/2020] [Indexed: 12/12/2022] Open
Abstract
Polystyrene nanospheres (PNs) were embedded in bovine skin gelatin gels with a poly(N-isopropylacrylamide) (PNIPAAm) network, which were denoted as NGHHs, to generate thermoresponsive behavior. When 265 nm PNs were exploited to generate the pores, bovine skin gelatin extended to completely occupy the pores left by PNs below the lower critical solution temperature (LCST), forming a pore-less structure. Contrarily, above the LCST, the collapse of hydrogen bonding between bovine skin gelatin and PNIPAAm occurred, resulting in pores in the NGHH. The behavior of pore closing and opening below and above the LCST, respectively, indicates the excellent drug gating efficiency. Amoxicillin (AMX) was loaded into the NGHHs as smart antibiotic gating due to the pore closing and opening behavior. Accordingly, E. coli. and S. aureus were exploited to test the bacteria inhibition ratio (BIR) of the AMX-loaded NGHHs. BIRs of NGHH without pores were 48% to 46.7% at 25 and 37 °C, respectively, for E. coli during 12 h of incubation time. The BIRs of nanoporous NGHH could be enhanced from 61.5% to 90.4% providing a smart antibiotic gate of bovine skin gelatin gels against inflammation from infection or injury inflammation.
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He P, Ding J, Qin Z, Tang L, Haw KG, Zhang Y, Fang Q, Qiu S, Valtchev V. Binder-free preparation of ZSM-5@silica beads and their use for organic pollutant removal. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00259c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organic structure directing agent (OSDA)- and binder-free preparation of ZSM-5@silica beads and their use for aniline removal.
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Affiliation(s)
- Ping He
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
| | - Jiehua Ding
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
| | - Zhengxing Qin
- State Key Laboratory of Heavy Oil Processing
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Lingxue Tang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
| | - Kok-Giap Haw
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
| | - Yiying Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
| | - Qianrong Fang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
| | - Shilun Qiu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
| | - Valentin Valtchev
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012
- China
- Normandie Univ
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