Article
Environmental Sciences
Priyanka Doondani, Ravin Jugade, Vaishnavi Gomase, Anita Shekhawat, Apurva Bambal, Sadanand Pandey
Summary: A rapid gelation method was used to fabricate magnetic chitosan/graphite/polyvinyl alcohol hydrogel beads crosslinked with glutaraldehyde. The material showed excellent adsorption capacity and magnetic behavior, making it a cost-effective and efficient decontaminant for reactive orange 16 dye. Fixed bed column studies demonstrated its applicability for large-volume treatment, and it could be regenerated and reused.
Article
Biochemistry & Molecular Biology
Assia Benhouria, H. Zaghouane-Boudiaf, Riadh Bourzami, Ferhat Djerboua, B. H. Hameed, Mokhtar Boutahala
Summary: Chitosan/bentonite beads (CsB) composites were prepared for the removal of reactive orange 16 (RO16) and methylene blue (MB). The adsorption results showed that Cs20B80 was the best adsorbent for MB and RO16 dyes. The characteristics of Cs, B, and Cs20B80 were investigated using various techniques. The adsorption process was affected by contact time, initial concentration, temperature, adsorbent quantity, ion strength, and solution pH.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Prasanna Kumar Obulapuram, Tanvir Arfin, Faruq Mohammad, Sachin K. Khiste, Murthy Chavali, Aisha N. Albalawi, Hamad A. Al-Lohedan
Summary: The present study focuses on using Cu(I)-based polyaniline (PANI) composite to remove reactive orange 16 (RO16) dye as an alternative to activated carbon. The results showed that the composite has a high efficiency in removing RO16 dye, with an optimal removal rate of 94.77% at pH 4 and a calculated maximum capacity of 392.156 mg/g according to the Langmuir model. The adsorption kinetics followed a pseudo-second-order model and demonstrated suitability towards the Langmuir isotherm, suggesting the formation of a monolayer of dye molecules on the absorbent surface. Additionally, thermodynamic analysis revealed a slightly positive value of Delta S degrees for RO16 adsorption, indicating increased randomness at the interface for an adsorption process.
Article
Engineering, Chemical
Ayfer Yildirim
Summary: A green composite material C-TPP-PEE was synthesized and evaluated for its adsorption performance of the dye RO16. The maximum adsorption capacity of RO16 on C-TPP-PEE was found to be 736 mg g(-1). The adsorption process was determined to be spontaneous, favorable, and endothermic, with best fitting to the pseudo-second-order kinetic model and Langmuir model.
CHEMICAL ENGINEERING & TECHNOLOGY
(2021)
Article
Polymer Science
Chao Hu, Zuhong Zheng, Mengyao Huang, Fan Yang, Xuewei Wu, Aiqun Zhang
Summary: This study analyzed a magnetite-chitosan composite through various techniques and explored its adsorption properties for Cu(II) and Cd(II). The results showed that the optimum pH for adsorption was 5.0, the equilibrium time was about 10 minutes, and the adsorption capacity reached 26.28 mg/g for Cu(II) and 18.67 mg/g for Cd(II). The temperature had a certain impact on the adsorption amount, and the composite material had a relatively rough outer surface, with dominant adsorption being attributed to chitosan. The research suggests the importance of further optimizing the composite system through green synthesis for heavy metal adsorption.
Article
Engineering, Environmental
Nurul Izzati Normi, Ahmed Saud Abdulhameed, R. Razuan, Emad Yousif, Zeid A. ALOthman, Lee D. Wilson, Ali H. Jawad
Summary: In this study, chitosan was functionalized with aromatic groups using a hydrothermal technique to create a highly efficient adsorbent CHI-BZA for removing acidic dyes. The characterization results confirmed the successful grafting of aromatic rings onto chitosan backbone, and CHI-BZA exhibited mesoporous and crystalline features. The adsorption capacity of CHI-BZA for RO16 dye was found to be 228.9 mg/g.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Engineering, Environmental
Nur Shazwani Abdul Mubarak, T. W. Chuan, H. P. Khor, Ali H. Jawad, L. D. Wilson, S. Sabar
Summary: The study successfully fabricated Fe-loaded chitosan film immobilized onto a glass support, demonstrating a greater adsorption capacity for methyl orange and excellent thermodynamic properties. The immobilized Fe-CS film showed promising potential for the removal of MO dye and similar pollutants due to its easy recovery and recyclability.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Polymer Science
Jorge Lozano-Montante, Raquel Garza-Hernandez, Mario Sanchez, Edgar Moran-Palacio, Guillermo Nino-Medina, Mario Almada, Luis Hernandez-Garcia
Summary: This study successfully achieved the adsorption of Pb(II) ions in water by cellulose derivatives, and identified that cellulose composite materials cross-linked with chitosan modified with 2-methylpyridine and succinic anhydride have higher adsorption capacities. Kinetic data showed a pseudo-second-order behavior in the adsorption process.
Article
Green & Sustainable Science & Technology
Xiaoli Du, Shenshen Cui, Qian Wang, Qiang Han, Guizhong Liu
Summary: This study investigated the non-competitive and competitive adsorption of Zn(II), Cu(II), and Cd(II) by a granular Fe-Mn binary oxide (GFMO). The adsorption process was found to be nonspontaneous and endothermic, with pH affecting the maximum adsorption capacity and competition between metal ions suppressing adsorption. The results suggest that GFMO has potential for engineering applications in green infrastructures.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2021)
Article
Engineering, Chemical
Ataollah Babakhani, Majid Sartaj
Summary: This study investigated the adsorption of Ni(II) and Cd(II) ions using chitosan and crosslinked chitosan beads from single and binary metal ion solutions. Experimental factors were optimized, and the results showed that the Langmuir model fitted well for single-ion equilibrium adsorption data. In the competitive adsorption models, the extended Freundlich model was successful in fitting the adsorption equilibrium data. Characterization of loaded crosslinked chitosan beads indicated that amino and phosphate groups were responsible for metal ions uptake simultaneously.
CHEMICAL ENGINEERING COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Perumal Karthikeyan, Sankaran Meenakshi
Summary: A novel and environmentally-friendly chitosan encapsulated magnetic kaolin beads were fabricated and applied for the adsorption of phosphate and nitrate ions from water in this study. The synthesized beads showed promising potential as selective and effective adsorbents for the removal of phosphate and nitrate ions from aqueous solutions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Agricultural Engineering
Ravi Katiyar, Anil Kumar Patel, Thanh-Binh Nguyen, Reeta Rani Singhania, Chiu-Wen Chen, Cheng-Di Dong
Summary: This study found that seaweed-derived biochar showed high removal efficiency for Cu(II) in water, with Langmuir adsorption isotherm explaining the adsorption mechanisms. This indicates that waste biomass (seaweed) could be a valuable biological resource for removing heavy metals from various water bodies.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Ping Zhang, Cong Zhang, Tiancheng Jiang, Md Yousuf Hossain, Wenju Zhu, Md Nahid Pervez, Md Ikram Ul Hoque, Iusuf Khan, Xuejun Long, Yingjie Cai
Summary: The study demonstrated that high-temperature reactive dyes were more suitable for dyeing raw ramie yarn, and adsorption primarily followed the pseudo-second-order model. After the dyeing and washing processes, gummy substances in the fiber were effectively removed without affecting the water absorbency, tensile strength, and stiffness of the ramie yarn.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Engineering, Chemical
Glaydson S. dos Reis, Julie Thivet, Ewen Laisne, Varsha Srivastava, Alejandro Grimm, Eder C. Lima, Davide Bergna, Tao Hu, Mu. Naushad, Ulla Lassi
Summary: In this study, a selenium-doped mesoporous biochar was successfully prepared and used for the adsorption of sodium diclofenac and reactive orange 16 dye. The selenium doping significantly affected the morphology and physicochemical properties of the biochar. The developed biochar exhibited high adsorption capacity for both molecules, driven by multiple mechanisms including pore filling, pi-pi interaction, and hydrogen bonding. This work provides a feasible approach for the development of selenium-doped biochar adsorbents for wastewater treatment.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Environmental Sciences
Szende Tonk, Laszlo Elod Aradi, Gabor Kovacs, Alexandru Turza, Eszter Rapo
Summary: The excellent adsorption properties of clay minerals make them a popular choice for removing heavy metals. In this study, ASLAVITAL cosmetic clay powder from Romania was used to remove Cd2+ from water. The morphology and elemental composition of the clay were characterized using various techniques. The Langmuir II model provided the best fit for describing the adsorption process. Physical bonds were observed to form between the clay and Cd2+ during adsorption.
Article
Chemistry, Analytical
A. Benettayeb, E. Guibal, A. Bhatnagar, A. Morsli, R. Kessas
Summary: The synthesized alginate beads have high adsorption capacity and selectivity for the removal of Ni(II) and Zn(II) metal ions.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Mohammed F. Hamza, Amr Fouda, Yuezhou Wei, Ibrahim E. El Aassy, Saad H. Alotaibi, Eric Guibal, Noha M. Mashaal
Summary: A new sorbent with high sorption capacity, selectivity, and fast kinetics was designed by functionalization of a bio-based composite. It showed excellent uranium removal efficiency as well as the ability to recover other metal ions. Additionally, the sorbent exhibited antimicrobial activity and negligible cytotoxicity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Mohammed F. Hamza, Yuezhou Wei, Mahmoud S. Khalafalla, Neveen S. Abed, Amr Fouda, Khalid Z. Elwakeel, Eric Guibal, Nora A. Hamad
Summary: Urea and thiourea have been deposited on the surface of silica beads for the recovery of U(VI) and Th(IV). The sorbents exhibit fast uptake kinetics and high sorption capacities. They also show excellent stability and preferential adsorption of U(VI) and Th(IV) over other metals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Mohammed F. Hamza, Khalid A. M. Salih, Kanggen Zhou, Yuezhou Wei, Hanaa A. Abu Khoziem, Saad H. Alotaibi, Eric Guibal
Summary: This study successfully functionalized algal/polyethyleneimine composite beads by grafting phosphonate and quaternary ammonium groups, which greatly enhanced the sorption capacity for tungstate. The synergistic effects of the two functional groups, as well as the temperature and pH, contributed to the improved sorption properties. The functionalized sorbent showed high selectivity for W(VI) and could be efficiently recycled for multiple cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Mohammed F. Hamza, Eric Guibal, Khalid Althumayri, Yuezhou Wei, Ahmed M. Eid, Amr Fouda
Summary: A new sorbent (ACES-F micro-particles) was synthesized by the one-pot reaction of N-(2-acetamido)-2-aminoethanesulfonic acid with formaldehyde. The sorbent showed high sorption capacity for Cs(I) and good selectivity against alkali and other competitor metal ions. It had a fast sorption rate and could be easily desorbed using nitric acid. The sorbent also demonstrated interesting antimicrobial properties and potential for cesium recovery from seawater.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Mohammed F. Hamza, Eric Guibal, Yuezhou Wei, Amr Fouda
Summary: The combination of magnetite microparticles with a bi-functional amino-sulfonate polymer allows the synthesis of a magnetic composite sorbent (M-GANS) that efficiently sorbs uranyl ions. UV irradiation improves both the sorption capacity and kinetics, potentially due to the photo-reduction of uranyl species mediated by magnetite particles and amine groups. The M-GANS also exhibits enhanced selectivity for uranium over other metal ions and can be recycled for multiple cycles with minimal loss in sorption performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Food Science & Technology
Priscila Aparecida Horn, Ana Lucia Bertarello Zeni, Natalia Cavichioli, Evelyn Winter, Keila Zaniboni Siqueira Batista, Luciano Vitali, Eduardo Alves de Almeida
Summary: This study characterized the chemical composition of brewer's spent yeast (BSY) from two different beer productions and tested its cytotoxicity in various cell lineages. The results showed that BSY samples had similar lipid and ash content but slight differences in other nutritional components. BSY2 sample had higher concentrations of glucans and phenolic compounds. Both BSY1 and BSY2 extracts demonstrated similar antioxidant capacity and were not cytotoxic to most cell lines except PANC-1 cells. These findings suggest that brewery residue can be a value-added functional food with potential adjuvant role against PANC-1 cell lines.
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Marina Pereira-Coelho, Isabel Cristina da Silva Haas, Cassia Katrin Reinke, Jocinei Dognini, Renata Dias de Mello Castanho Amboni, Luciano Vitali, Luiz Augusto dos Santos Madureira
Summary: A simple sample preparation approach employing the dispersive pipette extraction (DPX) technique is proposed to determine twelve polyphenols in wines. The extraction parameters were optimized using univariate and multivariate designs. The analytical performance was satisfactory with high determination coefficients and good precision.
Article
Biochemistry & Molecular Biology
Ahmed M. Elgarahy, Hamida Y. Mostafa, Elsayed G. Zaki, Shymaa M. ElSaeed, Khalid Z. Elwakeel, Abdullah Akhdhar, Eric Guibal
Summary: Hydrogel membranes were prepared using a mixture of gellan gum and biochar from an Egyptian plant. The material showed good sorption capacity for Methylene Blue, with a specific surface area of 134 m2/g. The sorption process was endothermic and temperature-dependent.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Alyne Lizane Cardoso, Luciane de Lira Teixeira, Neuza Mariko Aymoto Hassimotto, Sheyla de Liz Baptista, Candice Lais Knoner Copetti, Debora Kurrler Rieger, Francilene Gracieli Kunradi Vieira, Gustavo Amadeu Micke, Luciano Vitali, Maria Alice Altenburg de Assis, Mayara Schulz, Roseane Fett, Edson Luiz da Silva, Patricia Faria Di Pietro
Summary: This clinical trial evaluated the absorption and excretion of bioactive compounds in jucara juice and its antioxidant capacity in human serum. The study found that several phenolic acids and conjugated phenolic acids were excreted in urine, and jucara juice decreased the total oxidant status of serum. These findings suggest a relationship between the production of metabolites and the antioxidant capacity of jucara juice.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Applied
Pamela Pacassa Borges, Larissa Benvenutti, Aline Lana Schneider, Marcelo Rodrigo Franke Echterhoff, Bruna Goncalves Lopes, Diogo Alexandre Siebert, Gustavo Amadeu Micke, Luciano Vitali, Michele Debiasi Alberton, Nara Lins Meira Quintao, Jose Roberto Santin, Isabel Daufenback Machado
Summary: We investigated the anti-inflammatory activity of Myrcia pubipetala's crude hydroalcoholic extract (CHE-MP) and found that it significantly reduced the levels of nitric oxide, interleukin-1 beta, interleukin-6, and tumor necrosis factor in inflammatory cells. It also decreased neutrophil migration, indicating its potential as an anti-inflammatory agent.
NATURAL PRODUCT RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Daniel Ballesteros-Plata, Yue Zhang, Enrique Rodriguez-Castellon, Thierry Vincent, Eric Guibal
Summary: In this study, brown algal biomass residue obtained after bio-stimulant extraction was used for the removal of hazardous metals, including Ni(II), Cd(II), and La(III), from aqueous solutions. The residue showed a strong affinity for metal cations and achieved equilibrium within 180-240 min. This research demonstrates the potential valorization of industrial waste for the recovery of hazardous and strategic metal ions.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Polymer Science
Khalid A. M. Salih, Kanggen Zhou, Mohammed F. Hamza, Hamed Mira, Yuezhou Wei, Shunyan Ning, Eric Guibal, Waheed M. Salem
Summary: The objective of this study is to design a new sorbent for the simultaneous recovery of Cs(I) and Sr(II) metals with selectivity against other metals. The functionalization of algal/polyethyleneimine hydrogel beads by phosphonation enhances sorption capacities and stability, and provides greater selectivity against alkali, alkaline-earth, and heavy metal ions. The sorption properties of the modified sorbent are compared with the pristine support under different conditions, and the superiority of the phosphonated sorbent is confirmed.
Article
Chemistry, Analytical
Diogo Alexandre Siebert, Natalia Bruzamarello Caon, Michele Debiasi Alberton, Luciano Vitali, Alexandre Luis Parize, Gustavo Amadeu Micke
Summary: This study proposes a novel enzyme micro-reactor using acetylcholinesterase anchored on magnetic nanoparticles and immobilized in capillaries using chitosan and glutaraldehyde. The enzyme showed a Km value of 1.12 mmol L-1, comparable to other immobilized enzyme studies. The method was also used to evaluate IC50 for neostigmine and showed good stability with at least 25 experiments possible. The method was applied to hydroalcoholic extracts of 7 plant species, with Plinia cauliflora showing the best enzyme inhibition of 42.31±6.81% at a concentration of 100 mg L-1.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Applied
Victor Rodrigues Alves, Samantha Goncalves, Heitor Daguer, Gustavo Amadeu Micke, Luciano Vitali
Summary: The rise in consumption of ultra-processed meat and dietary collagen supplements poses a challenge to food quality control. This study aimed to develop a new method using cyclodextrin-assisted electrokinetic chromatography with indirect UV detection to determine 4-hydroxyproline for collagen monitoring in dietary supplements and meat products. The method involved hydrolyzing samples with sulfuric acid and removing them using simultaneous neutralization/precipitation reactions with strontium carbonate. The method was successfully validated and proved to be a feasible alternative for quality control.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Materials Science, Biomaterials
Mohammadreza Kasravi, Alireza Yaghoobi, Tahereh Tayebi, Mahsa Hojabri, Abdolkarim Talebi Taheri, Fatemeh Shirzad, Bahram Jambar Nooshin, Radman Mazloomnejad, Armin Ahmadi, Fatemeh A. Tehrani, Ghasem Yazdanpanah, Mohammad Hadi Farjoo, Hassan Niknejad
Summary: As a promising approach in translational medicine, the decellularization of discarded livers to produce bioscaffolds that support recellularization has potential in overcoming the limitations of conventional liver transplantation. In this study, the researchers investigated the use of matrix metalloproteinase (MMP) inhibition to preserve the extracellular matrix (ECM) during liver decellularization. The results demonstrated that the application of an MMP inhibitor significantly improved the preservation of ECM components and mechanical properties of the bioscaffolds, which supported cell viability and function in vitro. The study also confirmed that the MMP inhibition led to the inhibition of MMP2 and MMP9, providing a novel method to enhance ECM preservation during liver decellularization.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Mohammadsadegh Nadimifar, Weiguang Jin, Clara Coll-Satue, Gizem Bor, Paul Joseph Kempen, Ali Akbar Moosavi-Movahedi, Leticia Hosta-Rigau
Summary: This study presents a metal-phenolic self-assembly approach that can prepare nanoparticles fully made of hemoglobin. The nanoparticles exhibit good oxygen binding and releasing capabilities.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jyoti Kumari, Roel Hammink, Jochem Baaij, Frank A. D. T. G. Wagener, Paul H. J. Kouwer
Summary: Fibrosis is the formation of fibrous connective tissue in response to injury, leading to organ dysfunction. A novel hybrid hydrogel combining synthetic polyisocyanide with hyaluronic acid has been developed, showing strong antifibrotic properties.
BIOMATERIALS ADVANCES
(2024)
Letter
Materials Science, Biomaterials
Melissa Machado Rodrigues, Cristian Padilha Fontoura, Charlene Silvestrin Celi Garcia, Sandro Tomaz Martins, Joao Antonio Pegas Henriques, Carlos Alejandro Figueroa, Mariana Roesch Ely, Cesar Aguzzoli
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jessica Polak, David Sachs, Nino Scherrer, Adrian Suess, Huan Liu, Mitchell Levesque, Sabine Werner, Edoardo Mazza, Gaetana Restivo, Mirko Meboldt, Costanza Giampietro
Summary: Human skin equivalents (HSEs) play a crucial role in tissue engineering. This study introduces a 3D-printed culture insert to apply a static radial constraint on HSEs and examines its effects on tissue characteristics. The results show that the diameter of the culture insert significantly influences tissue contraction, fibroblast and matrix organization, keratinocyte differentiation, epidermal stratification, and basement membrane formation. This study provides important insights for the design of skin tissue engineering.
BIOMATERIALS ADVANCES
(2024)
Review
Materials Science, Biomaterials
Shiliang Chen, Tianming Du, Hanbing Zhang, Jing Qi, Yanping Zhang, Yongliang Mu, Aike Qiao
Summary: This paper reviewed the primary methods for improving the overall properties of biodegradable zinc stents. It discussed the mechanical properties, degradation behavior, and biocompatibility of various improvement strategies. Alloying was found to be the most common, simple, and effective method for improving mechanical properties. Deformation processing and surface modification further improved the mechanical properties and biological activity of zinc alloys. Meanwhile, structural design could endow stents with special properties. Manufacturing zinc alloys with excellent properties and exploring their interaction mechanism with the human body are areas for future research.
BIOMATERIALS ADVANCES
(2024)
