Article
Green & Sustainable Science & Technology
Masud Hassan, Amal Kanti Deb, Fangjie Qi, Yanju Liu, Jianhua Du, Adam Fahy, Md Ariful Ahsan, Sanjai J. Parikh, Ravi Naidu
Summary: Adsorption is a promising technology for removing organic and inorganic contaminants. This study synthesized magnetically separable mesoporous polymeric beads for efficient removal of methylene blue under broad solution pH. The adsorbent exhibited high adsorption capacity, suitable for different pH conditions. Kinetic model fittings indicated the efficient removal of MB by NiZnFe4O4-HNT@alg.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Yi Zhang, Panlei Wang, Zawar Hussain, Hao Zhang, Haitao Wang, Na Chang, Fan Li
Summary: An environmentally friendly hydrogel adsorbent R-L-Gel was prepared by sol-gel methods, which exhibited high adsorption capacity and excellent adsorption performance.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Abdullah A. Ghawanmeh, Ling Ling Tan, Gomaa A. M. Ali, Mohammed A. Assiri, Kwok Feng Chong
Summary: In this study, response surface methodology was used to optimize the amounts of carboxymethyl cellulose (CMC) and gum Arab (GA) for the fabrication of hydrogel beads for delivering anticancer drugs. The optimized nanocomposite showed good drug encapsulation efficiency and sustained drug release profile, making it a promising nanocarrier for controlled drug delivery.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Ting Xu, Kun Liu, Nan Sheng, Minghao Zhang, Wei Liu, Huayu Liu, Lin Dai, Xinyu Zhang, Chuanling Si, Haishun Du, Kai Zhang
Summary: Using biopolymer-based hydrogel electrolytes as alternatives to traditional petroleum-based materials in energy storage and conversion devices has great potential, with advantages such as low cost, eco-friendliness, and degradability. Current research focuses on the development of electrochemical performance and additional functions, while facing challenges that require further study and development.
ENERGY STORAGE MATERIALS
(2022)
Article
Polymer Science
Filomena Sannino, Elena Di Matteo, Mariarosaria Ambrosecchio, Domenico Pirozzi
Summary: Dyes are considered as significant contaminants that pose a threat to the environment and human life. The combination of chitosan hydrogels' adsorption capacity and the catalytic properties of laccase enzyme has been utilized to enhance the removal of contaminants from liquid streams. The adsorption efficiency of chitosan hydrogel was tested on three different textile dyes, with the effectiveness varying depending on the pH and characteristics of the dye. Immobilizing laccase onto chitosan has significantly improved the dye removal efficiency, regardless of the pH value.
Article
Chemistry, Physical
Sai Kiran Mani, Rajni Bhandari
Summary: A novel hybrid network of graphene oxide-polyethylenimine-polyvinyl alcohol hydrogel beads with high adsorption capacity and thermal stability has been synthesized via microwave route. The adsorbent shows good removal efficiency for various dyes and demonstrates great potential for application in simulated wastewater treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Paper & Wood
Deepak Sharma, Vineet Madan, Pradeep Sharma
Summary: In this study, an amphoteric derivative of galactomannan from Cassia tora seeds was successfully synthesized and characterized. It exhibited high adsorption capacity for cationic and anionic dyes as well as efficient flocculation ability.
Article
Spectroscopy
Mari F. Nicolas, Jayr H. Marin, Giordano T. Paganoto, Rafaella F. Fernandes, Marcia L. A. Temperini
Summary: This study presents a new SERS and SEF platform approach using substrates composed of alginate-stabilized silver nanoparticles encapsulated in calcium alginate hydrogel beads. The distance between probe molecules and metallic nanoparticles, determined by electrostatic repulsion or attraction between charged dyes and carboxylate groups of alginate, defines the SERS or SEF effect. The results demonstrate the detection of SEF effect with IR-820 dye in the near-infrared and visible regions, as well as the SERRS effect and fluorescence quenching with cationic dye in the same AgALGbeads substrate.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Polymer Science
Bruno Thorihara Tomoda, Murilo Santos Pacheco, Yasmin Broso Abranches, Juliane Vigano, Fabiana Perrechil, Mariana Agostini De Moraes
Summary: This study aimed to develop a prolonged release device by incorporating SF microparticles containing dyes into SF hydrogels. Hydrophobic and cationic dyes showed high encapsulation efficiency in SF devices. The addition of SF microparticles in SF hydrogels was an effective method to prolong the release, increasing the release time by 10-fold.
Article
Polymer Science
Mona A. Aziz Aljar, Suad Rashdan, Ahmed Abd El-Fattah
Summary: The research focuses on developing environmentally friendly semi-interpenetrating polymer network (semi-IPN) nanocomposite hydrogel beads incorporating bentonite clay for the removal of toxic dyes. The designed beads showed good stability and reusability, with a significant increase in methylene blue removal efficiency.
Review
Biochemistry & Molecular Biology
Alejandro Hurtado, Alaa A. A. Aljabali, Vijay Mishra, Murtaza M. Tambuwala, Angel Serrano-Aroca
Summary: This review provides a comprehensive overview of alginate, an excellent biodegradable and renewable material. It covers the principles, production methods, properties, and various forms and applications of alginate. The improvements made to enhance its physicochemical and biological characteristics have expanded its potential applications, including scaffolds and bioprinting.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Cesar Vinicius Toniciolli Rigueto, Mateus Torres Nazari, Marieli Rosseto, Lillian Avila Massuda, Ingridy Alessandretti, Jeferson Steffanello Piccin, Aline Dettmer
Summary: The RCTLW gelatin beads extracted from tannery wastes showed promising adsorption capacities for TYD and DCF, with maximum adsorption capacities of 263.13 and 36.65 mg.g(-1), respectively. The beads exhibited good regeneration potential, maintaining a capacity of around 100 mg.g(-1) with 45% regeneration after 10 cycles of use.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Paper & Wood
Farhana Islam, Siew Yee Wong, Xu Li, M. Tarik Arafat
Summary: In this study, Pectin and mucin were incorporated into a cellulose hydrogel to create superabsorbent hydrogels with improved swelling capacity. The modified hydrogels showed significantly higher swelling ratios and pH-responsive behavior compared to pure cellulose hydrogels. Additionally, different drug release profiles were observed based on the pH medium, showcasing the potential of Pec/Muc-modified cellulose hydrogels in controlled drug delivery systems and other biomedical applications.
Article
Engineering, Chemical
Jia Xin Yap, C. P. Leo, Derek Juinn Chieh Chan, Nazlina Haiza Mohd Yasin, Mohd Shaiful Sajab
Summary: Water pollution requires sustainable materials for green treatment solutions. This study successfully extracted nanocellulose from microalgae through alkaline treatment, bleaching, and hydrolysis without TEMPO-mediated oxidation. The effects of acid concentration on nanocellulose properties were studied and the maximum yield was achieved using sulphuric acid with a concentration of 60%(v/v). The extracted microalgae nanocellulose was incorporated into carboxymethyl cellulose/sodium alginate beads, significantly increasing methylene blue adsorption capacity and achieving a high dye removal percentage.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Ashi Khalil, Nauman Ali, Abdullah M. Asiri, Tahseen Kamal, Sher Bahadar Khan, Jawad Ali
Summary: A novel catalyst Ag@NiO/Alg hydrogel beads were synthesized by incorporating nanomaterial into polymer solution, which showed high catalytic efficiency in reducing RhB and MO. Experimental data indicated that the reactions followed pseudo-first order kinetics with high apparent rate constants when using Ag@NiO/Alg catalyst.
Article
Engineering, Chemical
Andrea Coletto, Pietro Poesio
Summary: Experiments and simulations were conducted to study the air volume fraction and hold-up in a bubble channel reactor. A new signal processing method was proposed to avoid the loss of bubble residence time. The results were in agreement with previous studies and a bubble-scale model was developed to explain the relationship between hold-up and air superficial velocity.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2024)