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Li H, Xing R, Ji X, Liu Y, Chu X, Gu J, Wang S, Wang G, Zhao S, Cao X. Natural algicidal compounds: Strategies for controlling harmful algae and application. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108981. [PMID: 39163650 DOI: 10.1016/j.plaphy.2024.108981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 07/02/2024] [Accepted: 07/28/2024] [Indexed: 08/22/2024]
Abstract
The expanding impact of algal blooms on marine areas poses a severe threat to the sustainable development of aquaculture, human health, and the ecological safety of coastal areas. To address this issue, the exploration of natural algicidal compounds with high efficiency, selectivity, and environmental friendliness has gained attention as potential substances for algae removal. However, the integration of related work still needs to be improved. Therefore, an in-depth study of algicidal strategies and applications of algicidal compounds for biodiversity has become crucial. Here, we aim to consolidate the current advancements in research on the sources and types of algicidal compounds. We also delve into various algicidal strategies, including the damage inflicted on algal structures, inhibition of photosynthesis, effects on oxidative damage, and impacts on gene expression. Additionally, we highlight practical applications of algicidal compounds, taking into account their specificities and limitations. This review contributes to the protection of marine biodiversity and the promotion of sustainable environmental development. Furthermore, we provide recommendations for future research on algicidal compounds to overcome existing barriers. By doing so, we hope to offer valuable references for researchers engaged in further studies on managing algal outbreaks.
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Affiliation(s)
- Huili Li
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Ronglian Xing
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China.
| | - Xingyu Ji
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Yi Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Xinran Chu
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Jiaxin Gu
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Shengnan Wang
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Gexuan Wang
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Shijun Zhao
- College of Life Sciences, Yantai University, Yantai, Shandong Province, 264005, PR China
| | - Xuebin Cao
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang Province, 315832, PR China; Yantai Jinghai Marine Fisheries Co., LTD, Yantai, Shandong Province, 264000, PR China
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2
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Duran T, Naik S, Sharifi L, DiLuzio WR, Chanda A, Chaudhuri B. Studying the ssDNA loaded adeno-associated virus aggregation using coarse-grained molecular dynamics simulations. Int J Pharm 2024; 655:123985. [PMID: 38484860 DOI: 10.1016/j.ijpharm.2024.123985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 03/19/2024]
Abstract
The aggregation of adeno-associated viral (AAV) capsids in an aqueous environment was investigated via coarse-grained molecular dynamics (CG-MD) simulations. The primary driving force and mechanism of the aggregation were investigated with or without single-strand DNA (ssDNA) loaded at various process temperatures. Capsid aggregation appeared to involve multiple residue interactions (i.e., hydrophobic, polar and charged residues) leading to complex protein aggregation. In addition, two aggregation mechanisms (i.e., the fivefold face-to-face contact and the edge-to-edge contact) were identified from this study. The ssDNA with its asymmetric structure could be the reason for destabilizing protein subunits and enhancing the interaction between the charged residues, and further result in the non-reversible face-to-face contact. At higher temperature, the capsid structure was found to be unstable with the significant size expansion of the loaded ssDNA which could be attributed to reduced number of intramolecular hydrogen bonds, the increased conformational deviations of protein subunits and the higher residue fluctuations. The CG-MD model was further validated with previous experimental and simulation data, including the full capsid size measurement and the capsid internal pressure. Thus, a good understanding of AAV capsid aggregation, instability and the role of ssDNA were revealed by applying the developed computational model.
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Affiliation(s)
- Tibo Duran
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
| | - Shivangi Naik
- Technical Operations, Sarepta Therapeutics, Cambridge, MA 02142, USA
| | - Leila Sharifi
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
| | - Willow R DiLuzio
- Technical Operations, Sarepta Therapeutics, Cambridge, MA 02142, USA
| | - Arani Chanda
- Technical Operations, Sarepta Therapeutics, Cambridge, MA 02142, USA
| | - Bodhisattwa Chaudhuri
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA; Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA; Institute of Material Sciences (IMS), University of Connecticut, Storrs, CT, USA.
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Abbaz A, Arris S, Viscusi G, Ayat A, Aissaoui H, Boumezough Y. Adsorption of Safranin O Dye by Alginate/Pomegranate Peels Beads: Kinetic, Isotherm and Thermodynamic Studies. Gels 2023; 9:916. [PMID: 37999006 PMCID: PMC10671396 DOI: 10.3390/gels9110916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023] Open
Abstract
Water pollution is regarded as a dangerous problem that needs to be resolved right away. This is largely due to the positive correlation between the increase in global population and waste production, especially food waste. Hydrogel beads based on sodium alginate (Alg) and pomegranate fruit peels (PP) were developed for the adsorption of Safranin O dye (SO) in aqueous solutions. The obtained Alg-PP beads were widely characterized. The effects of the contact time (0-180 min), initial concentration (10-300 mg/L), initial pH (2-10), adsorbent dosage (1-40 g/L) and the temperature (293-333 K) were investigated through batch tests. The data proved that the adsorption kinetics of SO reached equilibrium within 30 min and up to 180 min. The dye adsorption is concentration dependent while a slight effect of pH was observed. The adsorption data of SO onto synthesized beads follow the pseudo second-order model. The experimental data fitted very well to Langmuir model with correlation factor of 0.92 which demonstrated the favourable nature of adsorption. The maximum adsorption capacity of Alg-PP could reach 30.769 mg/g at 293 K. Calculation of Gibbs free energy and enthalpy indicated that adsorption of SO onto Alg-PP is spontaneous (negative ΔG) and endothermic (ΔH = 9.30 kJ/mol). Analysis of diffusion and mass transport phenomena were presented. The removal efficiency was found to be 88% at the first cycle and decreased to 71% at the end of the seventh cycle. The reported results revealed that the Alg-PP beads could be used as a novel natural adsorbent for the removal of high concentrated solutions of Safranin O which is a cationic dye from liquid affluents and as future perspective, it can be used to remove various pollutants from wastewater.
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Affiliation(s)
- Amina Abbaz
- Environmental Process Engineering Laboratory (LIPE), Faculty of Process Engineering, Salah Boubnider University Constantine 3, Constantine 25000, Algeria; (A.A.); (H.A.); (Y.B.)
| | - Sihem Arris
- Environmental Process Engineering Laboratory (LIPE), Faculty of Process Engineering, Salah Boubnider University Constantine 3, Constantine 25000, Algeria; (A.A.); (H.A.); (Y.B.)
| | - Gianluca Viscusi
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy;
| | - Asma Ayat
- Environmental Process Engineering Laboratory (LIPE), Faculty of Process Engineering, Salah Boubnider University Constantine 3, Constantine 25000, Algeria; (A.A.); (H.A.); (Y.B.)
| | - Halima Aissaoui
- Environmental Process Engineering Laboratory (LIPE), Faculty of Process Engineering, Salah Boubnider University Constantine 3, Constantine 25000, Algeria; (A.A.); (H.A.); (Y.B.)
| | - Yasser Boumezough
- Environmental Process Engineering Laboratory (LIPE), Faculty of Process Engineering, Salah Boubnider University Constantine 3, Constantine 25000, Algeria; (A.A.); (H.A.); (Y.B.)
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Li Y, Liu J, Zhang H, Shi X, Li S, Yang M, Zhang T, Xiao H, Du Z. A Comprehensive Review of Self-Assembled Food Protein-Derived Multicomponent Peptides: From Forming Mechanism and Structural Diversity to Applications. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37486612 DOI: 10.1021/acs.jafc.3c02930] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Food protein-derived multicomponent peptides (FPDMPs) are a natural blend of numerous peptides with various bioactivities and multiple active sites that can assume several energetically favorable conformations in solutions. The remarkable structural characteristics and functional attributes of FPDMPs make them promising codelivery carriers that can coassemble with different bioactive ingredients to induce multidimensional structures, such as fibrils, nanotubes, and nanospheres, thereby producing specific health benefits. This review offers a prospective analysis of FPDMPs-based self-assembly nanostructures, focusing on the mechanism of formation of self-assembled FPDMPs, the internal and external stimuli affecting peptide self-assembly, and their potential applications. In particular, we introduce the exciting prospect of constructing functional materials through precursor template-induced self-assembly of FPDMPs, which combine the bioactivity and self-assembly capacity of peptides and could dramatically broaden the functional utility of peptide-based materials.
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Affiliation(s)
- Yajuan Li
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Jingbo Liu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Hui Zhang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Xiaoxia Shi
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Shanglin Li
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Meng Yang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Ting Zhang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Zhiyang Du
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
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Ben Khemis I, Noureddine O, Smati H, Aouaini F, Ben Hadj Hassine S, Ben Lamine A. Advanced investigation of a putative adsorption process of nine non key food odorants (non-KFOs) on the broadly tuned human olfactory receptor OR2W1: Statistical physics modeling and molecular docking study. Int J Biol Macromol 2023; 233:123548. [PMID: 36758753 DOI: 10.1016/j.ijbiomac.2023.123548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/11/2023]
Abstract
In the present paper, statistical physics formalism was used to understand the olfactory perception via the investigation of dose-olfactory response curves of a putative adsorption process of nine non key food odorants (non-KFOs) on the broadly tuned human olfactory receptor OR2W1, in order to quantitative characterize the interactions between the nine studied non-KFOs, i. e., furfuryl sulfide, furfuryl disulfide, benzyl methyl disulfide, furfuryl methyl disulfide, benzyl methyl sulfide, 1-phenylethanethiol, benzyl mercaptan, furfuryl methyl sulfide and 3-phenylpropanol molecules and OR2W1 binding sites at a molecular level. Two advanced adsorption models have been proposed: the advanced monolayer monoenergy model (monolayer model with identical and independent olfactory receptor binding sites) (Model 1) and the advanced monolayer model with two independent types of olfactory receptor binding sites (Model 2). It was concluded that the monolayer monoenergy model was selected as the most adequate model to fit the experimental dose-olfactory response curves tabulated in literature. Actually, the numerical values of the three fitted physico-chemical parameters (RM1, n and C1) were obtained by a non-linear regression. Indeed, modeling results suggested that the number of docked non-KFOs per OR2W1 binding site n values (1.24 < n < 1.94) was always superior to 1, which indicated the non-parallel orientation of the studied odorants on the olfactory receptor and the multi-molecular adsorption mechanism. The estimated molar adsorption energy ΔEa values (ranged from 6.07 to 12.16 kJ/mol) for the nine olfactory systems confirmed the physical the exothermic characters of the adsorption process since ΔEa values were lower than 40 kJ/mol and positive. Furthermore, these estimated parameters were applied to characterize stereographically and energetically the interaction between the nine non-KFOs and OR2W1 through the determination of the human receptor binding site size distributions (RSDs) and the adsorption energy distributions (AEDs), which were spread out from 0.25 to 6.50 nm and from 0 to 22.50 kJ/mol, respectively. The docking computation between these nine non-KFOs and OR2W1 proved that the estimated binding affinities were belonged to the adsorption energies spectrum in general and the specific adsorption energy band or the molecular vibration modes limited spectrum (between 2.50 kJ/mol and 17 kJ/mol) (approximate olfactory band).
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Affiliation(s)
- Ismahene Ben Khemis
- Laboratory of Quantum and Statistical Physics LR 18 ES 18, Faculty of Sciences of Monastir, Environnement Street, 5019 Monastir, Tunisia.
| | - Olfa Noureddine
- Laboratory of Quantum and Statistical Physics LR 18 ES 18, Faculty of Sciences of Monastir, Environnement Street, 5019 Monastir, Tunisia
| | - Houda Smati
- Laboratory of Quantum and Statistical Physics LR 18 ES 18, Faculty of Sciences of Monastir, Environnement Street, 5019 Monastir, Tunisia
| | - Fatma Aouaini
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Siwar Ben Hadj Hassine
- Department of Computer Science, College of Science and Arts at Muhayel, King Khalid University, Saudi Arabia
| | - Abdelmottaleb Ben Lamine
- Laboratory of Quantum and Statistical Physics LR 18 ES 18, Faculty of Sciences of Monastir, Environnement Street, 5019 Monastir, Tunisia
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Mbafou CFG, Takam B, Boyom-Tatchemo FW, Tarkwa JB, Acayanka E, Kamgang GY, Gaigneaux EM, Laminsi S. Egg-derived porous plasma modified clay composite for wastewater remediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:6612-6626. [PMID: 36001266 DOI: 10.1007/s11356-022-22617-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Clays are often envisaged as an alternative to activated carbon for wastewater pollutant adsorption. However, conclusive results have only been obtained for clays heavily chemically modified. In this study, a greener approach is proposed to improve the retention capacity of clays. It consists in mixing clay (C) with eggshell (ES) and calcine, and then exposing to gliding arc plasma (ESC-800/PL). The resulting materials were characterized by nitrogen physisorption, FTIR, XRD, TGA/DTG, and point of zero charge analyses. The preparation gives porous platelet agglomerates resulting from the kaolinite-metakaolinite transition, thereby increasing their internal specific surface area and capacity to retain pollutants. This granular distribution is kept stable by partial pozzolanic reactions avoiding deagglomeration. The specific surface area and total pore volume increased respectively from 14 m2 g-1 and 0.049 cm3 g-1 to 89 m2 g-1 and 0.061 cm3 g-1 leading to an enhanced removal efficiency of Fast Green and Orange G dyes from polluted water. The maximum adsorption capacity occurred at 298 K attaining values of 32.34 and 14.78 mg g-1 for OG and FG, respectively. The pH plays a crucial role in the maximum sorption of dyes, and the experimental data were successfully adjusted to pseudo-first-order kinetic and Liu isotherm model.
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Affiliation(s)
- Claude F G Mbafou
- Inorganic Chemistry Department, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon
| | - Brice Takam
- Inorganic Chemistry Department, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon
| | - Franck W Boyom-Tatchemo
- Inorganic Chemistry Department, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon
- Institute of Condensed Matter and Nanosciences (IMCN), Division Molecular Chemistry, Materials and Catalysis (MOST), UCLouvain, Place Louis Pasteur 1, box L4.01.09, B-1348, Louvain-la-Neuve, Belgium
| | - Jean-Baptiste Tarkwa
- School of Geology and Mining Engineering, University of Ngaoundere, P.O. Box: 454, Meiganga, Cameroon
| | - Elie Acayanka
- Inorganic Chemistry Department, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon.
| | - Georges Y Kamgang
- Inorganic Chemistry Department, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon
| | - Eric M Gaigneaux
- Institute of Condensed Matter and Nanosciences (IMCN), Division Molecular Chemistry, Materials and Catalysis (MOST), UCLouvain, Place Louis Pasteur 1, box L4.01.09, B-1348, Louvain-la-Neuve, Belgium
| | - Samuel Laminsi
- Inorganic Chemistry Department, University of Yaoundé I, P.O. Box 812, Yaounde, Cameroon
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Coconut husk-raw clay-Fe composite: preparation, characteristics and mechanisms of Congo red adsorption. Sci Rep 2022; 12:14370. [PMID: 35999459 PMCID: PMC9399237 DOI: 10.1038/s41598-022-18763-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/18/2022] [Indexed: 11/08/2022] Open
Abstract
The release of unspent dyes from industries constitutes hazard and environmental challenges. For rapid and efficient removal of Congo red from aqueous solutions, a composite was prepared from coconut husk, raw clay, Fe(II) and Fe(II) compounds. Adsorption variables (initial pH of the solution, contact time, temperature and initial concentration of Congo red) were varied to understand the characteristics and mechanisms of the adsorption process. The composite was characterised using Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM)–Energy dispersive X-ray (EDX) spectroscopy, nitrogen adsorption–desorption isotherm, X-ray Diffraction (XRD) spectroscopy and pH of the point zero charge (pHpzc). The optimal values of the pH, equilibrium time and temperature for adsorption of Congo red by the composite are 2, 40 min and 50 °C, respectively. The kinetic and equilibrium data followed Avrami fractional order and Langmuir models, respectively. A 1.0 g of the composite could maximally take up 1649.3 mg of Congo red at 50 °C. The values of ΔG° are in the range of − 27.901 to − 24.492 kJ mol–1 while the value of ΔH° is − 72.239 kJ mol–1. Hence, the removal of the Congo red by the composite was spontaneous, feasible and exothermic. The adsorption process was biphasic and followed physisorption process. Electrostatic interaction played a significant role in the removal of Congo red by the composite. The combine data in this study have proven that the clay composite, a cheap adsorbent, can be used for remediation of water contaminated with Congo red.
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Aouaini F, Ben Yahia M, I Alrebdi H, A Alothman M. Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms. Sci Rep 2021; 11:20031. [PMID: 34625608 PMCID: PMC8501105 DOI: 10.1038/s41598-021-99465-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022] Open
Abstract
In this article, new insights about the metals-porphyrin complexes are proved by analyzing the zinc, nickel and chromium adsorption process over the well-known porphyrin macromolecule. The use of the quartz crystal microbalance (QCM) apparatus allows the control of the complexation systems' experimental adsorption data operating at four temperatures. The experimental results and the physical models reveal that the zinc and nickel complexation processes are to be examined using the mono layer adsorption model. While, the double layer model describes the interaction between the chromium compound and the porphyrin. Actually, the three metals are shown to be adsorbed by a multi-docking process in the physicochemical description. The endothermic character of the investigated processes is shown through the appropriate data of the principal parameter adsorbent sites' density. Hence, several porphyrin sites are exclusively stimulated at high temperature. The parameters of van del Waals, depicting the influences of the lateral interactions, explain the nickel isotherms down trend. The chemical bonds are shown to be carried out between the zinc and the porphyrin through the calculated adsorption energies. Considering the thermodynamic study, and referring to the configurational entropy and the free enthalpy, it is to be noted that the disorder peak of the three mechanisms is reached when the equilibrium concentration is equal to the energetic parameters' values for each system. The nickel enthalpy revealed for high concentration that the adsorbates' lateral interactions disapproved the nickel chloride adsorption. The free enthalpy trends, that observed two stability states of the chromium compound, confirmed the chromium double layer mechanism.
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Affiliation(s)
- Fatma Aouaini
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohamed Ben Yahia
- Laboratory of Quantum and Statistical Physics LR18ES18, Faculty of Sciences of Monastir, 5000, Monastir, Tunisia.
| | - Haifa I Alrebdi
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Miysoon A Alothman
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
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Liu W, Li J, Xu Y, Yin D, Zhu X, Fu H, Su X, Guo X. Complete Mapping of DNA‐Protein Interactions at the Single‐Molecule Level. ADVANCED SCIENCE 2021; 8:2101383. [PMCID: PMC8655176 DOI: 10.1002/advs.202101383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
DNA–protein interaction plays an essential role in the storage, expression, and regulation of genetic information. A 1D/3D facilitated diffusion mechanism has been proposed to explain the extraordinarily rapid rate of DNA‐binding protein (DBP) searching for cognate sequence along DNA and further studied by single‐molecule experiments. However, direct observation of the detailed chronological protein searching image is still a formidable challenge. Here, for the first time, a single‐molecule electrical monitoring technique is utilized to realize label‐free detection of the DBP–DNA interaction process based on high‐gain silicon nanowire field‐effect transistors (SiNW FETs). The whole binding process of WRKY domain and DNA has been visualized with high sensitivity and single‐base resolution. Impressively, the swinging of hydrogen bonds between amino acid residues and bases in DNA induce the dynamic collective motion of DBP–DNA. This in situ, label‐free electrical detection platform provides a practical experimental methodology for dynamic studies of various biomolecules.
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Affiliation(s)
- Wenzhe Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesBeijing National Laboratory for Molecular SciencesNational Biomedical Imaging CenterCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing100871P. R. China
| | - Jie Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesBeijing National Laboratory for Molecular SciencesNational Biomedical Imaging CenterCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing100871P. R. China
- Shenzhen Bay LaboratoryShenzhen518132P. R. China
| | - Yongping Xu
- State Key Laboratory of Protein and Plant Gene ResearchBiomedical Pioneering Innovation Center (BIOPIC)Peking UniversityBeijing100871P. R. China
| | - Dongbao Yin
- State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesBeijing National Laboratory for Molecular SciencesNational Biomedical Imaging CenterCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing100871P. R. China
| | - Xin Zhu
- Center of Single‐Molecule SciencesFrontiers Science Center for New Organic MatterInstitute of Modern OpticsCollege of Electronic Information and Optical EngineeringNankai University38 Tongyan Road, Jinnan DistrictTianjin300350P. R. China
| | - Huanyan Fu
- Center of Single‐Molecule SciencesFrontiers Science Center for New Organic MatterInstitute of Modern OpticsCollege of Electronic Information and Optical EngineeringNankai University38 Tongyan Road, Jinnan DistrictTianjin300350P. R. China
| | - Xiaodong Su
- State Key Laboratory of Protein and Plant Gene ResearchBiomedical Pioneering Innovation Center (BIOPIC)Peking UniversityBeijing100871P. R. China
| | - Xuefeng Guo
- State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesBeijing National Laboratory for Molecular SciencesNational Biomedical Imaging CenterCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing100871P. R. China
- Center of Single‐Molecule SciencesFrontiers Science Center for New Organic MatterInstitute of Modern OpticsCollege of Electronic Information and Optical EngineeringNankai University38 Tongyan Road, Jinnan DistrictTianjin300350P. R. China
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Aouaini F, Ben Yahia M, M. Alanazi M. Phenomenological statistical physics modeling of metalloporphyrins adsorption at the molecular level. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Aouaini F. Water vapor molecule adsorption onto 'Ajwa' dates: Analytical investigation via infinite multilayer statistical physics model. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103248] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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12
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Effective adsorption of metals on porphyrins: Experiments and advanced isotherms modeling. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Statistical Physics Modeling of Sorption Isotherms of Aluminum, Iron, and Indium on Tetraphenylporphyrin (H2TPP) and Tetrakis(4-tolylphenyl)porphyrin (H2TTPP): Phenomenological Investigation of Metalloporphyrins at the Molecular Level. ADSORPT SCI TECHNOL 2021. [DOI: 10.1155/2021/5540517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A quartz crystal adsorbent functionalized with two promising porphyrins (the 5,10,15,20-tetrakis(4-tolylphenyl)porphyrin and the 5,10,15,20-tetraphenylporphyrin) was applied for the investigation of the adsorption phenomenon of aluminum chloride, iron chloride, and indium chloride. The aim is to prove new insights about the appropriate adsorption materials for metalloporphyrin fabrication. The equilibrium isotherms were measured at five adsorption temperatures (from 290 to 330 K) through the microbalance (QCM) method. The discussion of the experimental observations indicated that the adsorption of the aluminum chloride and the iron chloride was performed via a monolayer process. On contrary, the participation of the chloride ions in the double-layer adsorption of the indium chloride was explained by the layer-by-layer process. Overall, the statistical physics modeling of the experimental curves indicated that the number of ions per adsorbent site
was found inferior to 1 for all the adsorption systems (multi-interaction process for the three ions). Interestingly, the physicochemical investigation of the three adopted models showed that the complexation mechanism of the tested porphyrins was an endothermic process since the two steric parameters (
and
) increased with the rise of the temperature. The FeCl3 curves were discussed via a monolayer adsorption model which includes the parameters
and
(lateral interaction description), indicating the lowest stability of the formed iron-porphyrin complex. The energetic study showed that the adsorption energies
of AlCl3 on H2TTPP and H2TPP are superior to 40 kJ/mol (chemical adsorption mechanism), whereas the adsorption mechanisms of FeCl3 and InCl3 took place via a physical process since they presented adsorption energy values lower than 40 kJ/mol.
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Ben Yahia M, Yahya Saeed AlZahrani H, Ben Yahia M. Application of advanced statistical physics modeling for the physicochemical analysis of adsorption isotherms of manganese (II) on porphyrins H2TPP and H2TTP. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1007/s43153-021-00090-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Application of Innovative Analytical Modeling for the Physicochemical Analysis of Adsorption Isotherms of Silver Nitrate on Helicenes: Phenomenological Study of the Complexation Process. ADSORPT SCI TECHNOL 2021. [DOI: 10.1155/2021/6619389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The interaction between the silver ion and the cyclic aromatic molecules, namely, the helicenes, is the subject of this paper. In fact, a silver complexation system based on quartz crystal microbalance (QCM) sensor with a functional film of helicenes has been designed and developed at four temperatures. The developed system, in which the sensor response reflects the adsorption of the hexahelicene and the heptahelicene, was able to control the complexed mass of silver for each concentration. Experimental outcomes indicated that the quartz crystal coated with heptahelicene is the adequate material for silver adsorption. Then, a theoretical study has been performed through two statistical physics models (SMPG and SMRG) in order to analyze the experimental adsorption isotherms of the two helicenes at the ionic scale. The SMRG model was developed using the real gas law and was satisfactorily applied for the microscopic investigation of the hexahelicene isotherms indicating that the lateral interactions between the adsorbates are responsible of the decrease of the adsorbed quantity at saturation. The interpretation of the two models’ parameters indicated that the adsorption of the two helicenes is an endothermic phenomenon. Interestingly, the heptahelicene is recommended for silver complexation because it shows the highest adsorption energies involving chemical bonds during the complexation process. The SMPG model and the SMRG model also allow prediction of three thermodynamic functions (configurational entropy, Gibbs free enthalpy, and internal energy) which govern the adsorption mechanism of silver on the two helicenes.
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Duran T, Minatovicz B, Bai J, Shin D, Mohammadiarani H, Chaudhuri B. Molecular Dynamics Simulation to Uncover the Mechanisms of Protein Instability During Freezing. J Pharm Sci 2021; 110:2457-2471. [PMID: 33421436 DOI: 10.1016/j.xphs.2021.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/07/2020] [Accepted: 01/03/2021] [Indexed: 11/19/2022]
Abstract
Freezing is a common process applied in the pharmaceutical industry to store and transport biotherapeutics. Herewith, multi-scale molecular dynamics simulations of Lactate dehydrogenase (LDH) protein in phosphate buffer with/without ice formation performed to uncover the still poorly understood mechanisms and molecular details of protein destabilization upon freezing. Both fast and slow ice growing conditions were simulated at 243 K from one or two-side of the simulation box, respectively. The rate of ice formation at all-atom simulations was crucial to LDH stability, as faster freezing rates resulted in enhanced structural stability maintained by a higher number of intramolecular hydrogen bonds, less flexible protein's residues, lower solvent accessibility and greater structural compactness. Further, protein aggregation investigated by coarse-grained simulations was verified to be initiated by extended protein structures and retained by electrostatic interactions of the salt bridges between charged residues and hydrogen bonds between polar residues of the protein. Lastly, the study of free energy of dissociation through steered molecular dynamics simulation revealed LDH was destabilized by the solvation of the hydrophobic core and the loss of hydrophobic interactions. For the first time, experimentally validated molecular simulations revealed the detailed mechanisms of LDH destabilization upon ice formation and cryoconcentration of solutes.
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Affiliation(s)
- Tibo Duran
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT, 06269, USA
| | - Bruna Minatovicz
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT, 06269, USA
| | - Jun Bai
- Department of Computer Sciences and Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Dongkwan Shin
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT, 06269, USA
| | - Hossein Mohammadiarani
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT, 06269, USA
| | - Bodhisattwa Chaudhuri
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT, 06269, USA; Institute of Material Sciences (IMS), University of Connecticut, Storrs, CT, USA; Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA.
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Chen B, Cao Y, Zhao H, Long F, Feng X, Li J, Pan X. A novel Fe 3+-stabilized magnetic polydopamine composite for enhanced selective adsorption and separation of Methylene blue from complex wastewater. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122263. [PMID: 32070929 DOI: 10.1016/j.jhazmat.2020.122263] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 02/07/2020] [Accepted: 02/08/2020] [Indexed: 05/12/2023]
Abstract
Herein, a novel Fe3+-stabilized magnetic polydopamine composite (Fe3O4/PDA-Fe3+) was facilely constructed, systematically characterized, and subsequently applied for the first time as a versatile adsorbent for treatment of Methylene blue (MB) in complex wastewater. Results showed that as-prepared material had prominent adsorption ability toward MB in its single dye solution over a wide pH range (3-10) with qmax value of 608.8 mg/g at 318 K. More interestingly, MB could be selectively captured by resulting adsorbent from mixed dye solutions (MB-cationic dye and MB-anionic dye) and complex aqueous solution with high ionic strength up to 0.5 mol/L NaCl. It was eventually revealed that the enhanced and selective adsorption of MB by as-resultant adsorbent was due to the synergistic effects between multiple uptake mechanisms. What's more, its adsorption efficiency toward MB in simulated wastewater still maintained higher than 80 % of its original uptake performance after several runs of adsorption-desorption. Additionally, it exhibited more superior uptake performance toward MB than commercial powder activated carbon (PAC) in column adsorption system. Thus, the outstanding sorption ability, unique capture selectivity, as well as excellent stability and recyclability for model wastewater endow it a promising candidate adsorbent for selective adsorption and separation of MB from complex wastewater.
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Affiliation(s)
- Bo Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Yangrui Cao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Huinan Zhao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Fengxia Long
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Xiang Feng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Juan Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China
| | - Xuejun Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China.
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Hou J, Zhang S, Zhang X, Liu S, Zhang Q. Adsorption of ferulic acid from an alkali-pretreated hydrolysate using a new effective adsorbent prepared by a thermal processing method. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122281. [PMID: 32092646 DOI: 10.1016/j.jhazmat.2020.122281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
A new adsorbent (AEPA250) was prepared using the enzymatic hydrolyzed residue of rice straw in an air environment at 250 ℃ by a thermal processing method. Compared to the commercial adsorbent, AEPA250 possessed a larger specific surface area of 277.680 m2 g-1, and the maximum adsorption efficiency of ferulic acid from alkali-pretreated hydrolysate of rice straw achieved 70.33 % at the optimum conditions. Adsorption kinetics and isotherm studies showed that the pseudo second-order (PSO) (0.997 ≤ R2 ≤ 0.999) and Liu models (0.931 ≤ R2 ≤ 0.997) exhibited better fitting results, which indicated that chemical and saturable adsorption existed between ferulic acid and AEPA250. An adsorption thermodynamics study revealed the spontaneous and endothermic adsorption process (ΔHo > 0 and ΔSo< 0). Micropore diffusion was defined as the major adsorption rate-limiting step according to the analysis of Webber-Morris and Bangham's model. Additionally, π-π*, ion exchange, hydrogen bonding and precipitation were recognized as the four main mechanisms of ferulic acid removal by AEPA250 through SEM/EDX, EDX mapping, XPS, FTIR and XRD analysis. These results indicated that AEPA250 was effective for adsorbing inhibitors in pretreated rice straw hydrolysates, and it has high potential for application in establishing the self-sufficient production process of bioethanol.
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Affiliation(s)
- Jinju Hou
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China
| | - Shudong Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China
| | - Xiaotong Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China
| | - Shujia Liu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China
| | - Qiuzhuo Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China; Institute of Eco-Chongming (IEC), 3663 N. Zhongshan Rd., Shanghai 200062, China.
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Preparation, characterization of titanate nanosheet–pozzolan nanocomposite and its use as an adsorbent for removal of diclofenac from simulated hospital effluents. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Bauer CA. How to Model Inter- and Intramolecular Hydrogen Bond Strengths with Quantum Chemistry. J Chem Inf Model 2019; 59:3735-3743. [DOI: 10.1021/acs.jcim.9b00132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Niksirat M, Sadeghi R, Esmaili J. Removal of Mn from aqueous solutions, by activated carbon obtained from tire residuals. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0797-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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22
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Bouaziz N, Ben Manaa M, Bouzid M, Ben Lamine A. Adsorption of hydrogen in defective carbon nanotube: modelling and consequent investigations using statistical physics formalism. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1606460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Nadia Bouaziz
- Department of Physics, Faculty of Science of Monastir, Monastir, Tunisia
| | - Marwa Ben Manaa
- Department of Physics, Faculty of Science of Monastir, Monastir, Tunisia
| | - Mohamed Bouzid
- Department of Physics, Faculty of Science of Monastir, Monastir, Tunisia
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A critical review of the estimation of the thermodynamic parameters on adsorption equilibria. Wrong use of equilibrium constant in the Van't Hoof equation for calculation of thermodynamic parameters of adsorption. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.10.048] [Citation(s) in RCA: 753] [Impact Index Per Article: 150.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kasperiski FM, Lima EC, Reis GSD, da Costa JB, Dotto GL, Dias SLP, Cunha MR, Pavan FA, Correa CS. Preparation of CTAB-functionalized aqai stalk and its efficient application as adsorbent for the removal of Direct Blue 15 and Direct Red 23 dyes from aqueous media. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2018.1458028] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Fernando M. Kasperiski
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Eder C. Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Glaydson S. dos Reis
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- School of Engineering, Department of Metallurgy, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Janaina B. da Costa
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Guilherme L. Dotto
- Chemical Engineering Department, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Silvio L. P. Dias
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Mariene R. Cunha
- Institute of Chemistry, Federal University of Pampa (UNIPAMPA), Bagé, Rio Grande do Sul, Brazil
| | - Flavio A. Pavan
- Institute of Chemistry, Federal University of Pampa (UNIPAMPA), Bagé, Rio Grande do Sul, Brazil
| | - Carine S. Correa
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
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Umpierres CS, Thue PS, Lima EC, Reis GSD, de Brum IAS, Alencar WSD, Dias SLP, Dotto GL. Microwave-activated carbons from tucumã (Astrocaryum aculeatum) seed for efficient removal of 2-nitrophenol from aqueous solutions. ENVIRONMENTAL TECHNOLOGY 2018; 39:1173-1187. [PMID: 28443387 DOI: 10.1080/09593330.2017.1323957] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/27/2017] [Indexed: 06/07/2023]
Abstract
Activated carbons (ACs) prepared from tucumã seed (Astrocaryum aculeatum) were used for 2-nitrophenol removal from aqueous solutions. The ACs were characterized by elemental analysis, FTIR, N2 adsorption/desorption isotherms, TGA, hydrophobicity/hydrophilicity balance, and total of acidic and basic groups. The ACs showed to have hydrophilic surfaces and they presented high specific surface areas (up to 1318 m2 g-1). In batch optimization studies, maximum removal was obtained at pH 7, contact time of 30 min, adsorbent dosage 1.5 gL-1 and temperature of 50°C. The general-order kinetic model and Liu isotherm model best fit the kinetic and equilibrium adsorption data with a maximum adsorption capacity of 1382 mg g-1 at 50°C. Effect of temperature and thermodynamic studies revealed that the adsorption processes of 2-nitrophenol onto ACs are dependent on temperature and are exothermic and spontaneous, respectively. About the applicability of the ACs for treating simulated effluents, the tucumã seed-activated carbon showed an excellent outcome in the treatment of simulated effluents, evidencing its high efficiency for phenolic compound adsorption. Tucumã seed-ACs showed to be cost effective and highly efficient adsorbents for efficient removal of 2-nitrophenol from aqueous solutions.
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Affiliation(s)
- Cibele S Umpierres
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Pascal S Thue
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Eder C Lima
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Glaydson S Dos Reis
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
- b School of Engineering, Department of Metallurgy , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Irineu A S de Brum
- b School of Engineering, Department of Metallurgy , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Wagner S de Alencar
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
- c Institute of Exact Sciences , Federal University of South and Southeast of Pará (UNIFESSPA) , Marabá , Brazil
| | - Silvio L P Dias
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Guilherme L Dotto
- d Chemical Engineering Department , Federal University of Santa Maria (UFSM) , Santa Maria , Brazil
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Wamba AGN, Lima EC, Ndi SK, Thue PS, Kayem JG, Rodembusch FS, Dos Reis GS, de Alencar WS. Synthesis of grafted natural pozzolan with 3-aminopropyltriethoxysilane: preparation, characterization, and application for removal of Brilliant Green 1 and Reactive Black 5 from aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:21807-21820. [PMID: 28776292 DOI: 10.1007/s11356-017-9825-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 07/24/2017] [Indexed: 06/07/2023]
Abstract
Natural pozzolan is an amorphous silicate-based material of volcanic origin. In this work, the natural pozzolan was modified by using 3-aminopropyltriethoxysilane (APTES) as a grafting agent. This material was characterized by pHpzc, N2 adsorption/desorption curves, FTIR, TGA/DTG, DRUV, SEM, and elementary analysis. The functionalized materials were used for the removal of Reactive Black 5 (RB-5) and Brilliant Green 1 (BG-1) dyes from aqueous solutions using batch-contact adsorption. The characterization of modified pozzolan by FTIR, TGA/DTG, BET, and DRUV-vis revealed the effectiveness of grafting of amine functional group on pozzolan structure. The kinetic adsorption data were better fitted with general order for both dyes while for equilibrium models were better fitted by the Liu isotherm model. The maximum sorption capacities Q max (at 50 °C) obtained with the modified pozzolan were 350.6 and 300.9 mg g-1 for BG-1 and RB-5, at pH 9.0 and 2.0, respectively. The thermodynamic parameters show that the removal of dyes was spontaneous and endothermic. The modified material was also tested for the treatment of simulated dye house effluents showing very high efficiency.
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Affiliation(s)
- Alfred G N Wamba
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, Porto Alegre, RS, 91501-970, Brazil
- Department of Process Engineering, University of Ngaoundere, Ngaoundere, Cameroon
- Department of Process Engineering, Saint Jerome Catholic University Institute, Av. Akwa Koumassi, Douala, Cameroon
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, Porto Alegre, RS, 91501-970, Brazil.
| | - Sylvere K Ndi
- Department of Process Engineering, University of Ngaoundere, Ngaoundere, Cameroon
| | - Pascal S Thue
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, Porto Alegre, RS, 91501-970, Brazil
| | - Joseph G Kayem
- Department of Process Engineering, University of Ngaoundere, Ngaoundere, Cameroon
| | - Fabiano S Rodembusch
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, Porto Alegre, RS, 91501-970, Brazil
| | - Glaydson S Dos Reis
- Department of Metallurgy, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, Porto Alegre, RS, 9500, Brazil
| | - Wagner S de Alencar
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, Porto Alegre, RS, 91501-970, Brazil
- Institute of Exact Sciences, Federal University of South and Southeast of Pará (UNIFESSPA), Marabá, PA, Brazil
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Saucier C, Karthickeyan P, Ranjithkumar V, Lima EC, Dos Reis GS, de Brum IAS. Efficient removal of amoxicillin and paracetamol from aqueous solutions using magnetic activated carbon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:5918-5932. [PMID: 28064396 DOI: 10.1007/s11356-016-8304-7] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
Activated carbon (AC)/CoFe2O4 nanocomposites, MAC-1 and MAC-2, were prepared by a simple pyrolytic method using a mixture of iron(III)/cobalt(II) benzoates and iron(III)/cobalt(II) oxalates, respectively, and were used as efficient adsorbents for the removal of amoxicillin (AMX) and paracetamol (PCT) of aqueous effluents. The synthesized nanocomposites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM). The sizes of cobalt ferrite nanoparticles formed from benzoates of iron(III)/cobalt(II) and oxalates of iron(III)/cobalt(II) precursors were in the ranges of 5-80 and 6-27 nm, respectively. The saturation magnetization (M s), remanence (M r) and coercivity (H c) of the MAC-2 nanocomposites were found to be 3.07 emu g-1, 1.36 emu g-1 and 762.49 Oe; for MAC-1, they were 0.2989 emu g-1, 0.0466 emu g-1 and 456.82 Oe. The adsorption kinetics and isotherm studies were investigated, and the results showed that the as-prepared nanocomposites MAC-1 and MAC-2 could be utilized as an efficient, magnetically separable adsorbent for environmental cleanup. The maximum sorption capacities obtained were 280.9 and 444.2 mg g-1 of AMX for MAC-1 and MAC-2, respectively, and 215.1 and 399.9 mg g-1 of PCT using MAC-1 and MAC-2, respectively. Both adsorbents were successfully used for simulated hospital effluents, removing at least 93.00 and 96.77% for MAC-1 and MAC-2, respectively, of a mixture of nine pharmaceuticals with high concentrations of sugars, organic components and saline concentrations.
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Affiliation(s)
- Caroline Saucier
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - P Karthickeyan
- Department of Chemistry, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, 641029, India
| | - V Ranjithkumar
- Department of Chemistry, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, 641029, India
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Glaydson S Dos Reis
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
- Department of Metallurgy, Federal University of Rio Grande do Sul (UFRGS), Engineering School, Av. Bento Gonçalves, 9500, Agronomia, Porto Alegre, 91501-970, Brazil.
| | - Irineu A S de Brum
- Department of Metallurgy, Federal University of Rio Grande do Sul (UFRGS), Engineering School, Av. Bento Gonçalves, 9500, Agronomia, Porto Alegre, 91501-970, Brazil
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Thue PS, Adebayo MA, Lima EC, Sieliechi JM, Machado FM, Dotto G, Vaghetti JC, Dias SL. Preparation, characterization and application of microwave-assisted activated carbons from wood chips for removal of phenol from aqueous solution. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.09.032] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Puchana-Rosero M, Adebayo MA, Lima EC, Machado FM, Thue PS, Vaghetti JC, Umpierres CS, Gutterres M. Microwave-assisted activated carbon obtained from the sludge of tannery-treatment effluent plant for removal of leather dyes. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.05.059] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Synthesis of acrylic-lignosulfonate resin for crystal violet removal from aqueous solution. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-016-0119-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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da Cunha JM, Klein L, Bassaco MM, Tanabe EH, Bertuol DA, Dotto GL. Cobalt recovery from leached solutions of lithium-ion batteries using waste materials as adsorbents. CAN J CHEM ENG 2015. [DOI: 10.1002/cjce.22331] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jeanine Muller da Cunha
- Environmental Processes Laboratory, Chemical Engineering Department; Federal University of Santa Maria - UFSM; Santa Maria RS Brazil
| | - Laura Klein
- Environmental Processes Laboratory, Chemical Engineering Department; Federal University of Santa Maria - UFSM; Santa Maria RS Brazil
| | - Mariana Moro Bassaco
- Environmental Processes Laboratory, Chemical Engineering Department; Federal University of Santa Maria - UFSM; Santa Maria RS Brazil
| | - Eduardo Hiromitsu Tanabe
- Environmental Processes Laboratory, Chemical Engineering Department; Federal University of Santa Maria - UFSM; Santa Maria RS Brazil
| | - Daniel Assumpção Bertuol
- Environmental Processes Laboratory, Chemical Engineering Department; Federal University of Santa Maria - UFSM; Santa Maria RS Brazil
| | - Guilherme Luiz Dotto
- Environmental Processes Laboratory, Chemical Engineering Department; Federal University of Santa Maria - UFSM; Santa Maria RS Brazil
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Importance of asparagine on the conformational stability and chemical reactivity of selected anti-inflammatory peptides. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Saucier C, Adebayo MA, Lima EC, Cataluña R, Thue PS, Prola LDT, Puchana-Rosero MJ, Machado FM, Pavan FA, Dotto GL. Microwave-assisted activated carbon from cocoa shell as adsorbent for removal of sodium diclofenac and nimesulide from aqueous effluents. JOURNAL OF HAZARDOUS MATERIALS 2015; 289:18-27. [PMID: 25702636 DOI: 10.1016/j.jhazmat.2015.02.026] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 02/04/2015] [Accepted: 02/08/2015] [Indexed: 05/13/2023]
Abstract
Microwave-induced chemical activation process was used to prepare an activated carbon from cocoa shell for efficient removal of two anti-inflammatories, sodium diclofenac (DFC) and nimesulide (NM), from aqueous solutions. A paste was obtained from a mixture of cocoa shell and inorganic components; with a ratio of inorganic: organic of 1 (CSC-1.0). The mixture was pyrolyzed in a microwave oven in less than 10 min. The CSC-1.0 was acidified with a 6 mol L(-1) HCl under reflux to produce MWCS-1.0. The CSC-1.0 and MWCS-1.0 were characterized using FTIR, SEM, N2 adsorption/desorption curves, X-ray diffraction, and point of zero charge (pHpzc). Experimental variables such as initial pH of the adsorbate solutions and contact time were optimized for adsorptive characteristics of MWCS-1.0. The optimum pH for removal of anti-inflammatories ranged between 7.0 and 8.0. The kinetic of adsorption was investigated using general order, pseudo first-order and pseu do-second order kinetic models. The maximum amounts of DCF and NM adsorbed onto MWCS-1.0 at 25 °C are 63.47 and 74.81 mg g(-1), respectively. The adsorbent was tested on two simulated hospital effluents. MWCS-1.0 is capable of efficient removal of DCF and NM from a medium that contains high sugar and salt concentrations.
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Affiliation(s)
- Caroline Saucier
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Matthew A Adebayo
- Department of Chemical Sciences, Ajayi Crowther University, Oyo, Oyo State, Nigeria
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil.
| | - Renato Cataluña
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Pascal S Thue
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil; Department of Applied Chemistry, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
| | - Lizie D T Prola
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - M J Puchana-Rosero
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Fernando M Machado
- Technology Development Center, Federal University of Pelotas (UFPEL), Pelotas, Brazil
| | - Flavio A Pavan
- Institute of Chemistry, Federal University of Pampa (UNIPAMPA), Bagé, RS, Brazil
| | - G L Dotto
- Chemical Engineering Department, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
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Hicks TM, Verbeek CJR, Lay MC, Manley-Harris M. Changes in hydrogen bonding in protein plasticized with triethylene glycol. J Appl Polym Sci 2015. [DOI: 10.1002/app.42166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Talia Maree Hicks
- School of Engineering; Faculty of Science and Engineering; University of Waikato; Hamilton 3240 New Zealand
| | | | - Mark Christopher Lay
- School of Engineering; Faculty of Science and Engineering; University of Waikato; Hamilton 3240 New Zealand
| | - Merilyn Manley-Harris
- School of Science; Faculty of Science and Engineering; University of Waikato; Hamilton 3240 New Zealand
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Cadaval TRS, Dotto GL, Pinto LAA. Equilibrium Isotherms, Thermodynamics, and Kinetic Studies for the Adsorption of Food Azo Dyes onto Chitosan Films. CHEM ENG COMMUN 2014. [DOI: 10.1080/00986445.2014.934449] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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New carbon composite adsorbents for the removal of textile dyes from aqueous solutions: Kinetic, equilibrium, and thermodynamic studies. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0086-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Rovani S, Fernandes AN, Prola LDT, Lima EC, Santos WO, Adebayo MA. REMOVAL OF CIBACRON BRILLIANT YELLOW 3G-P DYE FROM AQUEOUS SOLUTIONS BY BRAZILIAN PEATS AS BIOSORBENTS. CHEM ENG COMMUN 2014. [DOI: 10.1080/00986445.2013.816954] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Adebayo MA, Prola LDT, Lima EC, Puchana-Rosero MJ, Cataluña R, Saucier C, Umpierres CS, Vaghetti JCP, da Silva LG, Ruggiero R. Adsorption of Procion Blue MX-R dye from aqueous solutions by lignin chemically modified with aluminium and manganese. JOURNAL OF HAZARDOUS MATERIALS 2014; 268:43-50. [PMID: 24462989 DOI: 10.1016/j.jhazmat.2014.01.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 01/02/2014] [Accepted: 01/05/2014] [Indexed: 05/25/2023]
Abstract
A macromolecule, CML, was obtained by purifying and carboxy-methylating the lignin generated from acid hydrolysis of sugarcane bagasse during bioethanol production from biomass. The CMLs complexed with Al(3+) (CML-Al) and Mn(2+) (CML-Mn) were utilised for the removal of a textile dye, Procion Blue MX-R (PB), from aqueous solutions. CML-Al and CML-Mn were characterised using Fourier transform infrared spectroscopy (FTIR), scanning differential calorimetry (SDC), scanning electron microscopy (SEM) and pHPZC. The established optimum pH and contact time were 2.0 and 5h, respectively. The kinetic and equilibrium data fit into the general order kinetic model and Liu isotherm model, respectively. The CML-Al and CML-Mn have respective values of maximum adsorption capacities of 73.52 and 55.16mgg(-1) at 298K. Four cycles of adsorption/desorption experiments were performed attaining regenerations of up to 98.33% (CML-Al) and 98.08% (CML-Mn) from dye-loaded adsorbents, using 50% acetone+50% of 0.05molL(-1) NaOH. The CML-Al removed ca. 93.97% while CML-Mn removed ca. 75.91% of simulated dye house effluents.
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Affiliation(s)
- Matthew A Adebayo
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil; Department of Chemical Sciences, Ajayi Crowther University, PMB 1066 Oyo, Oyo State, Nigeria
| | - Lizie D T Prola
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil.
| | - M J Puchana-Rosero
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Renato Cataluña
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Caroline Saucier
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Cibele S Umpierres
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Julio C P Vaghetti
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Leandro G da Silva
- Institute of Chemistry, Federal University of Uberlândia (UFU), AV. João Naves de Ávila 2121 block 1D-Campus Santa Mônica, 38400-902 Uberlândia, MG, Brazil
| | - Reinaldo Ruggiero
- Institute of Chemistry, Federal University of Uberlândia (UFU), AV. João Naves de Ávila 2121 block 1D-Campus Santa Mônica, 38400-902 Uberlândia, MG, Brazil
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Prola LDT, Machado FM, Bergmann CP, de Souza FE, Gally CR, Lima EC, Adebayo MA, Dias SLP, Calvete T. Adsorption of Direct Blue 53 dye from aqueous solutions by multi-walled carbon nanotubes and activated carbon. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2013; 130:166-75. [PMID: 24076517 DOI: 10.1016/j.jenvman.2013.09.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 08/06/2013] [Accepted: 09/01/2013] [Indexed: 05/23/2023]
Abstract
Multi-walled carbon nanotubes (MWCNT) and powder activated carbon (PAC) were used as adsorbents for adsorption of Direct Blue 53 dye (DB-53) from aqueous solutions. The adsorbents were characterised using Raman spectroscopy, N2 adsorption/desorption isotherms, and scanning and transmission electron microscopy. The effects of initial pH, contact time and temperature on adsorption capacity of the adsorbents were investigated. At pH 2.0, optimum adsorption of the dye was achieved by both adsorbents. Equilibrium contact times of 3 and 4 h were achieved by MWCNT and PAC adsorbents, respectively. The general order kinetic model provided the best fit of the experimental data compared to pseudo-first order and pseudo-second order kinetic adsorption models. For DB-53 dye, the equilibrium data (298-323 K) were best fitted to the Sips isotherm model. The maximum sorption capacity for adsorption of the dye occurred at 323 K, with the values of 409.4 and 135.2 mg g(-1) for MWCNT and PAC, respectively. Studies of adsorption/desorption were conducted and the results showed that DB-53 loaded MWCNT could be regenerated (97.85%) using a mixture 50% acetone + 50% of 3 mol L(-1) NaOH. Simulated dye house effluents were used to evaluate the application of the adsorbents for effluent treatment (removal of 99.87% and 97.00% for MWCNT and PAC, respectively, were recorded).
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Affiliation(s)
- Lizie D T Prola
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, 91501-970 Porto Alegre, RS, Brazil
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Biosorption of phenol onto bionanoparticles from Spirulina sp. LEB 18. J Colloid Interface Sci 2013; 407:450-6. [DOI: 10.1016/j.jcis.2013.06.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 06/13/2013] [Accepted: 06/14/2013] [Indexed: 11/24/2022]
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41
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Wang D, Ámundadóttir ML, van Gunsteren WF, Hünenberger PH. Intramolecular hydrogen-bonding in aqueous carbohydrates as a cause or consequence of conformational preferences: a molecular dynamics study of cellobiose stereoisomers. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2013; 42:521-37. [DOI: 10.1007/s00249-013-0901-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 03/19/2013] [Accepted: 03/28/2013] [Indexed: 10/26/2022]
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42
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Cardoso NF, Lima EC, Royer B, Bach MV, Dotto GL, Pinto LAA, Calvete T. Comparison of Spirulina platensis microalgae and commercial activated carbon as adsorbents for the removal of Reactive Red 120 dye from aqueous effluents. JOURNAL OF HAZARDOUS MATERIALS 2012; 241-242:146-53. [PMID: 23040660 DOI: 10.1016/j.jhazmat.2012.09.026] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 09/11/2012] [Accepted: 09/12/2012] [Indexed: 05/16/2023]
Abstract
Spirulina platensis microalgae (SP) and commercial activated carbon (AC) were compared as adsorbents to remove Reactive Red 120 (RR-120) textile dye from aqueous effluents. The batch adsorption system was evaluated in relation to the initial pH, contact time, initial dye concentration and temperature. An alternative kinetic model (general order kinetic model) was compared with the traditional pseudo-first order and pseudo-second order kinetic models. The equilibrium data were fitted to the Langmuir, Freundlich and Liu isotherm models, and the thermodynamic parameters were also estimated. Finally, the adsorbents were employed to treat a simulated dye-house effluent. The general order kinetic model was more appropriate to explain RR-120 adsorption by SP and AC. The equilibrium data were best fitted to the Liu isotherm model. The maximum adsorption capacities of RR-120 dye were found at pH 2 and 298 K, and the values were 482.2 and 267.2 mg g(-1) for the SP and AC adsorbents, respectively. The thermodynamic study showed that the adsorption was exothermic, spontaneous and favourable. The SP and AC adsorbents presented good performance for the treatment of simulated industrial textile effluents, removing 94.4-99.0% and 93.6-97.7%, respectively, of the dye mixtures containing high saline concentrations.
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Affiliation(s)
- Natali F Cardoso
- Institute of Chemistry, Federal University of Rio Grande do Sul, UFRGS, AV. Bento Gonçalves 9500, 91501-970, Porto Alegre, RS, Brazil
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Parra RD, Streu K. Cooperative effects in regular and bifurcated intramolecular OH⋯OC interactions: A computational study. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.09.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Vural D, Glyde HR. Vibrational dynamics of hydrogen in proteins. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 83:031922. [PMID: 21517538 DOI: 10.1103/physreve.83.031922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2010] [Revised: 11/01/2010] [Indexed: 05/30/2023]
Abstract
Biological macromolecules expand with increasing temperature and this dynamic expansion is associated with the onset of function. The expansion is typically characterized by the mean square vibrational displacement (MSD), <u²> of specific constituents such as hydrogen within the macromolecules. The <u²> increases with increasing temperature and the slope of <u²> versus temperature can increase significantly at a temperature T{D} identified as a dynamical transition. We illustrate that the observed expansion and change in slope of <u²> with temperature at T{D} can be reproduced within a simple model of the vibration, an atom in an anharmonic potential, V(u). Given V(u), only the temperature is varied in the model. A simple Gaussian potential or a potential containing a hard wall is particularly effective is reproducing the observed change in the slope of <u²> with temperature around T{D}.
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Affiliation(s)
- Derya Vural
- Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716-2570, USA
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