Article
Materials Science, Multidisciplinary
Yasir Iqbal, Faheem Amin, Noor ul Hudda Gilani
Summary: A sodium alginate-graphene oxide (SA-GO) hydrogel membrane was prepared using the freeze-gelation method and externally crosslinked with CaCl2. The bonding interaction of sodium alginate and the porosity of the SA-GO hydrogels were characterized by FTIR analysis and confirmed by SEM surface morphology analysis. Swelling studies and in-vitro degradation tests demonstrated improved porosity and controlled degradation of the GO-incorporated hydrogel membranes.
Article
Engineering, Environmental
Kai Lin, Ao Xia, Yun Huang, Xianqing Zhu, Kaiyong Cai, Zidong Wei, Qiang Liao
Summary: In this study, a microreactor loaded with cellulase based on co-deposition of dopamine (DA) and polyethyleneimine (PEI) was proposed to efficiently hydrolyze carboxymethyl cellulose (CMC) and produce sugar. The cellulase-loaded microreactor showed better temperature adaptability and higher long-term stability than other reaction systems, resulting in higher glucose production per unit time.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biotechnology & Applied Microbiology
Aslihan Kazan, Xihua Hu, Alina Stahl, Heike Frerichs, Irina Smirnova, Ozlem Yesil-Celiktas
Summary: The study developed an alginate-based immobilized enzyme microreactor for the catalytic conversion of ginsenoside Rb1 to more bioactive metabolites, showing enhanced activity compared to conventional approaches. There is potential for the biocatalysis of multiple ginsenosides and pharmaceutically active compounds using this newly developed enzymatic microreactor.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Sheila Maiz-Fernandez, Leyre Perez-Alvarez, Inaki Lopez De Munain-Arroniz, Aitana Zoco, Ana Catarina Lopes, Unai Silvan, Daniel Salazar, Jose Luis Vilas-Vilela, Senentxu Lanceros-Mendez
Summary: Soft materials are gaining attention for their ability to mimic natural system movement through remote actuation. Multi-sensitive hydrogels are considered ideal materials for developing dynamic and biocompatible soft structures. However, the 3D printing of bioinks based on naturally occurring and stimuli responsive hydrogels remains a challenge for advanced applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Engineering, Chemical
Debjani Ghosh, Anil B. Vir, Gil Garnier, Antonio F. Patti, Joanne Tanner
Summary: Xylooligosaccharides (XOS) are naturally occurring high value biochemicals with potential applications in the food, pharmaceutical and fine chemical industries. Intensified enzymatic XOS production from beechwood xylan using a flow-type microreactor significantly improves xylan hydrolysis performance and achieves three times higher xylan to XOS conversion compared to a conventional batch process.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Agricultural Engineering
Huimin Zhou, Junqiu Jiang, Qingliang Zhao, Zhaoxia Wang, Lili Li, Qingwei Gao, Kun Wang
Summary: This study investigates the use of saponin to enhance bioethanol recovery from food waste. Saponin regulates the release of substrate and increases glucose concentration, resulting in higher bioethanol yields. Optimal concentrations of saponin promote enzymatic hydrolysis, fermentation, and the metabolism of Saccharomyces cerevisiae.
BIORESOURCE TECHNOLOGY
(2023)
Article
Energy & Fuels
Bingrui Yan, Xiangming Hu, Yanyun Zhao, Mingyue Wu, Yue Feng, Zhenglong He, Guansheng Qi, Wanxing Ren, Yuntao Liang, Wei Wang, Jian Qiao, Qian Zhang
Summary: A new type of SA/P/B/Ca gel was designed in this paper by combining the advantages of polymer gels and inorganic sodium silicate gels to prevent and control the spontaneous combustion of coal. The gel was formed through the ionic crosslinking reaction of sodium alginate and Ca2+, and the inorganic boron crosslinker was used to release the masked Ca2+ for rapid in-situ gelation. The SA/P/B/Ca gel showed improved stability and water retention compared to traditional water glass gels and single-network gels, and exhibited superior inhibition and fire extinguishing performance against coal spontaneous combustion.
Article
Chemistry, Physical
Nhat-Khuong Nguyen, Pradip Singha, Jun Zhang, Hoang-Phuong Phan, Nam-Trung Nguyen, Chin Hong Ooi
Summary: This paper introduces a digital-imaging-based colorimetric monitoring method for enzymatic reactions in liquid marbles. The method shows high sensitivity and repeatability, indicating its potential for accurate and applicable monitoring in microreactors based on liquid marbles.
Article
Food Science & Technology
Wenjuan Wang, Zhe Dong, Liyuan Gu, Bi Wu, Suping Ji, Qiang Xia
Summary: The internal aqueous phase gelation of water-in-oil-in-water double emulsions encapsulated in alginate beads affects the structural stability and lipid hydrolysis during in vitro digestion. Gelation of the internal aqueous phase leads to smaller droplet sizes, less coalescence, and delayed lipolysis. The combination of encapsulating the bioactive molecule in alginate beads and gelling the internal aqueous phase can regulate the rate and extent of lipid digestion.
JOURNAL OF FOOD SCIENCE
(2022)
Article
Multidisciplinary Sciences
Victoria Soares Soeiro, Ricardo Silva-Carvalho, Daniela Martins, Pier Parpot, Denise Grotto, Marco Vinicius Chaud, Francisco Miguel Portela da Gama, Angela F. Jozala
Summary: Nanocomplexes systems made up natural polymers have pharmacotechnical advantages by increasing water solubility and decreasing drug toxicity. By covering Amphotericin B with nanocrystals from bacterial cellulose, the nanocomplexes showed improved biocompatibility and reduced cytotoxicity, making them a potentially non-toxic alternative for drug delivery.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Applied
Narin Paiboon, Suvimol Surassmo, Uracha Rungsardthong Ruktanonchai, Michael Kappl, Apinan Soottitantawat
Summary: Alginate microparticles were prepared using emulsification/internal gelation and microfluidic/internal gelation techniques. The addition of Ca-EDTA provided Ca2+ ions for crosslinking with the alginate chain. The effects of emulsification speed, Ca-EDTA concentration, and crosslinking time on the morphology, mechanical properties, and rheological properties were investigated.
FOOD HYDROCOLLOIDS
(2023)
Article
Multidisciplinary Sciences
Hamed Shieh, Maryam Saadatmand, Mahnaz Eskandari, Dariush Bastani
Summary: This study explores the on-chip production of microgels using external gelation in microfluidic devices, proposing a novel design and utilizing a shielding oil phase to address challenges. The microfluidic device demonstrated the capability of generating highly monodispersed spherical droplets and alginate microgels effectively.
SCIENTIFIC REPORTS
(2021)
Article
Food Science & Technology
S. K. Velazquez-Gutierrez, E. Alpizar-Reyes, A. Y. Guadarrama-Lezama, J. G. Baez-Gonzalez, J. Alvarez-Ramirez, C. Perez-Alonso
Summary: Sesame oil was encapsulated using ionic gelation with sodium alginate and nopal mucilage as matrices. Moisture sorption isotherms of different hydrogel beads were studied, showing micro- and mesoporous characteristics. The composition of the wall material played a central role in the sorption process.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Polymer Science
Yaqi Zhao, Yan Li, Tianchan Lan, Baowei Wang, Ming Huang, He Huang, Changming Qiao, Jingxin Sun
Summary: The physicochemical properties and microstructure of hybrid hydrogels prepared using sodium alginate and chondroitin sulfate extracted from two animal sources were investigated. The results showed that the addition of different sources of sulfate greatly influenced the properties and microstructure of the hydrogels.
Article
Materials Science, Multidisciplinary
Qiang Cao, Na Liu, Yushi Xiao, Rong Huang, Yang Li, Lidong Wu
Summary: This study presents a one-step method to prepare highly tough and magnetic hydrogels, which exhibit good mechanical properties and magnetism. These magnetic hydrogels have been successfully used in the fabrication of soft robotic marine animals driven by magnets.
ACS APPLIED POLYMER MATERIALS
(2021)
