Article
Materials Science, Multidisciplinary
Reny Thankam Thomas, Jose Ignacio Del Rio de Vicente, Kaitao Zhang, Mohammad Karzarjeddi, Henrikki Liimatainen, Kristiina Oksman
Summary: Membrane filtration and affinity-based adsorption are commonly used separation strategies. Researchers designed multifunctional and sustainable composite membranes with enhanced properties using cellulose acetate and functionalized cellulose nanocrystals. The impregnation of cationic CNCs significantly increased the tensile strength of the membranes, while anionic CNCs improved particle retention efficiency. These membranes can be utilized for selective trapping of bacteria or substances of biological significance.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Applied
Soledad Roig-Sanchez, Doron Kam, Nanthilde Malandain, Ela Sachyani-Keneth, Oded Shoseyov, Shlomo Magdassi, Anna Laromaine, Anna Roig
Summary: Acrylate hydrogels are potential soft tissue implants, but their weak mechanical properties and dimensional changes in liquids limit their applications. By fabricating double network hydrogels, the mechanical properties and swelling behavior of acrylate hydrogels can be improved.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Applied
Dimitrios Georgouvelas, Hani Nasser Abdelhamid, Jing Li, Ulrica Edlund, Aji P. Mathew
Summary: A simple method for manufacturing all-cellulose layered membranes with high adsorption and catalytic properties for metal ions and organic dyes has been developed in this study, with a significant increase in hydrogenation efficiency for dyes achieved in the presence of membranes compared to NaBH4 alone. The membranes show great potential for water purification systems due to their water-based processing, abundance of component materials, and multifunctional characteristics.
CARBOHYDRATE POLYMERS
(2021)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, A. B. Abeer Mohammed, Sahar E. El-Malkey
Summary: A study was conducted to screen 10 different bacterial strains for their potential to produce bacterial nanocellulose (BNC). Bacillus sp. strain SEE-3 showed the strongest ability to produce BNC. The characteristics of the nanocellulose, including crystallinity, particle size, and morphology, were analyzed. Optimal production conditions for BNC were determined through experimental and theoretical approaches.
SCIENTIFIC REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Chuchu Chen, Yiren Wang, Tong Zhou, Zhangmin Wan, Quanling Yang, Zhaoyang Xu, Dagang Li, Yongcan Jin
Summary: This research aims to develop strong and tough wood-based hydrogels by improving the interfacial interaction between wood cell wall and polymer through UV grafting. The resulting hydrogels, with PAM-grafted cellulose nanofiber architectures, showed significantly higher tensile properties and potential for sensor applications. The UV grafting strategy may open up new possibilities for the development of wood-based composites.
Article
Chemistry, Multidisciplinary
Diego Gomez-Maldonado, Savannah G. Phillips, Shital R. Vaidya, Paul C. Bartley III, Jason C. White, D. Howard Fairbrother, Maria S. Peresin
Summary: Enhancing the delivery efficiency of NPK fertilizers benefits both crops and the environment by regulating the dosage of nutrients in the soil and minimizing leaching and runoff. Nanocellulose-based hydrogels loaded with NPK demonstrate the potential for controlled release of nutrients in agricultural applications, with gas-phase modification slowing nutrient release significantly. Varying the properties of the hydrophobic surface layer and nutrient loading can further adjust release rates.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Chemistry, Multidisciplinary
Blanca Jalvo, Andrea Aguilar-Sanchez, Maria-Ximena Ruiz-Caldas, Aji P. Mathew
Summary: This article reports a comparative study of surface-modified cellulose nonwoven fabrics with different nano-sized bio-based carbohydrate polymers, showing improved wettability, surface charge, pore size, water permeability, particle separation, mechanical properties, and abiotic antifouling capability. Additionally, T-CNF and ChNC coatings were found to be harmful to bacteria. This simple surface impregnation approach based on green nanotechnology resulted in highly efficient and fully bio-based high-flux water filtration membranes with distinct particle rejection, antifouling, and antibacterial properties.
Article
Engineering, Chemical
Shiya Qiao, Jingling Yan, Zhen Wang, Yan Wang, Junrong Yu, Zuming Hu
Summary: With the increasing severity of health problems caused by air pollution, there is a growing demand for high-quality air filtration aerogel materials. This study successfully prepared composite nanofibrous aerogels with clear hierarchical porous structures by introducing cellulose nanofibers (CNF) into a polyimide nanofiber (PINF) system using self-assembly and freeze-drying technology. The resulting aerogels exhibited an extremely low density, a hierarchical porous structure, high filtration efficiency (99.69% for PM0.3), and a low pressure drop (230 Pa), making them promising air filtration materials for applications in more complex environments.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Polymer Science
Aida Fadakar Sarkandi, Majid Montazer, Tina Harifi, Mahnaz Mahmoudi Rad
Summary: In this study, an innovative in situ green strategy using green tea as a substrate for the fermentation of Acetobacter xylinum bacteria and a reducing agent for the in situ synthesis of silver nanoparticles was applied to prepare bacterial cellulose/silver nanocomposites. Characterization tests including FESEM, XRD, UV-vis spectroscopy, etc. showed excellent antibacterial activities of the prepared bio-cellulose/silver nanocomposites, making them potential candidates for future wound healing applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Paper & Wood
Raquel Martin-Sampedro, Maria E. Eugenio, David Ibarra, Eduardo Ruiz-Hitzky, Pilar Aranda, Margarita Darder
Summary: The development of nanocellulose-clay materials is significant, but the influence of nanocellulose properties on the final properties and potential applications of these materials has not been studied. By studying different types of nanocellulose and different sepiolite content, the properties of nanopapers can be adjusted.
Review
Chemistry, Multidisciplinary
Katja Heise, Eero Kontturi, Yagut Allahverdiyeva, Tekla Tammelin, Markus B. Linder, Nonappa, Olli Ikkala
Summary: Nanocelluloses have attracted significant attention in the pursuit of sustainable advanced functional materials. Despite facing challenges in mastering their interactions and tailorability, recent progress in water interactions and advanced hybrid gels has opened up new directions for potential applications like nanocomposites, gels, and composite fibers.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Applied
Daehwan Park, Joo Won Kim, Kyounghee Shin, Jin Woong Kim
Summary: The study introduces a cellulose-reinforced hybrid hydrogel system that enhances mechanical strength and enables on-demand drug release. By incorporating bacterial cellulose nanofibers (BCNFs) into a polyacrylamide (PAM) mesh, the compression strength of the hydrogel was significantly increased. Additionally, the tailored composition of BCNFs with PAM allowed for delayed drug release compared to PAM alone while enabling drug release in response to mechanical stress.
CARBOHYDRATE POLYMERS
(2021)
Article
Biochemistry & Molecular Biology
Junwen Peng, Hanmeng Yuan, Tingting Ren, Zhihuan Liu, Jianzheng Qiao, Qiang Ma, Xin Guo, Guoxin Ma, Yiqiang Wu
Summary: A fluorescent nanocellulose-based hydrogel incorporating titanate nanofibers was developed as an effective adsorbent for the sorption and detection of Cr(VI) ion. The hydrogel exhibited excellent sorption capacity and rapid visual response to Cr(VI) due to its three-dimensional porous structure.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Review
Chemistry, Multidisciplinary
Xianpeng Yang, Subir Kumar Biswas, Jingquan Han, Supachok Tanpichai, Mei-Chun Li, Chuchu Chen, Sailing Zhu, Atanu Kumar Das, Hiroyuki Yano
Summary: The article focuses on the importance of nanocelluloses in material engineering and the methods of their preparation, as well as the significance of surface and interface engineering in the process of nanocellulose fabrication.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Anha Afrin Shefa, Myeongki Park, Jae-Gyoung Gwon, Byong-Taek Lee
Summary: Due to the non-healing nature of chronic diabetic wounds, a novel wound healing agent is required. In this study, Alginate (ALG) membrane and Pluronic (R) F-127(P) hydrogel incorporated with alpha-tocopherol (AT) and TEMPO-oxidized cellulose nanofibers (TOCN) were designed. The combined application of hydrogels and membranes showed enhanced angiogenesis along with accelerated wound healing in diabetic rats.
MATERIALS & DESIGN
(2022)
Article
Engineering, Chemical
Jeanne Casetta, Danae Gonzalez Ortiz, Celine Pochat-Bohatier, Mikhael Bechelany, Philippe Miele
Summary: By depositing titanium dioxide (TiO2) on polysulfone hollow fiber (HF) membranes via atomic layer deposition (ALD), the hydrophilicity and fouling resistance of the PSF HF membranes were improved, leading to increased water permeability and reduced pore size.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Kwanele Kunene, Syreina Sayegh, Matthieu Weber, Myalowenkosi Sabela, Damien Voiry, Igor Iatsunskyi, Emerson Coy, Suvardhan Kanchi, Krishna Bisetty, Mikhael Bechelany
Summary: This study presents a method for fabricating an electrochemical immunosensor for aflatoxin detection. The sensor showed good analytical performance with a large linear range, low detection limit, and long-term stability. It was successfully applied to detect aflatoxin in wine samples.
Article
Materials Science, Multidisciplinary
Elias Kaady, Roland Habchi, Mikhael Bechelany, Elia Zgheib, Akram Alhussein
Summary: In this study, atomic layer deposited oxide coatings (Al2O3, ZnO, and TiO2) were added on Al-Zr magnetron sputtered coatings to improve their structural, mechanical, and electrochemical properties. The inserted oxide layers changed the morphology of the Al-Zr layer and enhanced its hardness. The hydrophobicity of the coatings was also promoted by the oxide layers. Electrochemical tests showed that the oxide layers delayed the pitting corrosion of the Al-Zr coating and improved the protective efficiency of the passive film.
Review
Pharmacology & Pharmacy
Kei Xian Tan, Michael K. Danquah, Jaison Jeevanandam, Ahmed Barhoum
Summary: Janus particles have emerged as a novel and smart material for improving pharmaceutical formulation, drug delivery, and therapeutics. They have two distinct compartments that can accommodate opposing pharmaceutical agents and allow for controlled drug release. This article discusses the development of Janus particles and their potential applications in diabetes treatment and antimicrobial therapy. It highlights the advances in synthesizing Janus particles from different materials using various approaches and evaluates their potential for improving conventional drug delivery systems.
Article
Energy & Fuels
Emerson Coy, Igor Iatsunskyi, Mikhael Bechelany
Summary: Photocatalysis involves accelerating chemical reactions through the use of incident light. Catalysts are typically necessary for efficient performance. The application of photocatalysis is extensive, encompassing areas such as renewable energy and environmental remediation. The development of innovative materials, particularly organic-inorganic hybrid materials, has played a crucial role in advancing the field. This perspective focuses on the use of machine learning in the design and understanding of polymeric hybrid systems for catalytic applications, as well as the exploration of four commonly used organic-inorganic hybrid materials as photocatalysts based on chitosan, polydopamine, polyaniline, and covalent organic frameworks.
Article
Polymer Science
Chris Vanheusden, Jan Vanminsel, Naveen Reddy, Pieter Samyn, Jan D'Haen, Roos Peeters, Anitha Ethirajan, Mieke Buntinx
Summary: Biobased and biodegradable polyhydroxyalkanoates (PHAs) are gaining popularity. Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) polymer has a processing window suitable for packaging, agricultural, and fishery applications. Centrifugal fiber spinning (CFS) is a promising technique to produce PHBHHx fibers with tunable morphology and properties. CFS can create beads and continuous fibers based on the polymer concentration, and thermal post-processing can further enhance the fibers' mechanical properties.
Review
Chemistry, Physical
Pieter Samyn, Vibhore Kumar Rastogi, Neelisetty Sesha Sai Baba, Juergen Van Erps
Summary: Artificial photosynthesis has rapidly developed as a field of research that mimics natural photosynthesis processes to produce energy or high-value chemicals. Nanocelluloses are biorenewable materials that can be engineered into nanostructures with favorable properties, serving as a host matrix for encapsulation of photoreactive moieties or cells. Different nanocellulose structures with specific properties, such as films, hydrogels, membranes, and foams, can function as photosynthetic devices. The article also discusses challenges and advancements in optimizing nanocellulose structures for artificial photosynthesis.
Article
Biochemistry & Molecular Biology
Mahmoud Abid, Elissa Makhoul, Fida Tanos, Igor Iatsunskyi, Emerson Coy, Geoffroy Lesage, Marc Cretin, David Cornu, Abdesslem Ben Haj Amara, Mikhael Bechelany
Summary: In this study, N-HNT-TiO2 composite nanofibers were produced by combining electrospinning of halloysite with nitriding for acetaminophen photodegradation. The materials showed even distribution of nitrogen and exhibited faster photodegradation of acetaminophen under visible light compared to samples without nitrogen. The composite nanofibers maintained their photocatalytic activity after repeated use and OH center dot-, O-2(center dot-) and h(+) radicals were found to play key roles in acetaminophen degradation.
Article
Multidisciplinary Sciences
Mohamed H. Hemida, Hesham Moustafa, Sherif Mehanny, Mohamed Morsy, Alain Dufresne, Eid N. Abd E. L. Rahman, M. M. Ibrahim
Summary: This study evaluated Nile roses fibers as a natural biomass for the extraction of cellulose nanocrystals (CNCs) through acid hydrolysis. The impact of extraction duration on the morphology and crystallinity of prepared CNCs was investigated, and various characterization techniques were used. The results showed that a 20-minute acid hydrolysis duration yielded an optimized fibrillar structure.
Article
Chemistry, Physical
Hesham Moustafa, Mohamed H. Hemida, Mohamed A. Shemis, Alain Dufresne, Mohamed Morsy
Summary: This study presents a highly efficient humidity sensing material based on folic acid (FA) functionalized graphene oxide (GO) embedded in a chitosan (CS)/polyvinyl alcohol (PVA) matrix. The nanosensors with various GO-FA contents were fabricated and characterized for their morphology, tensile strength, Raman spectroscopy, antibacterial activities, and humidity sensing properties. The sensor C10, with 10% GO-FA content, exhibited the highest sensitivity and ultrafast response/recovery times (2.6 s/3.5 s), making it suitable for intelligent food packaging and preservation.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Ahmed Salama, Ragab Abouzeid, Benedicte Prelot, Mohamed Diab, Marwa Assaf, Peter Hesemann
Summary: Wastewater containing organic pollutants is a major concern due to its harmful effects on human health and the environment. This article presents the development of a promising material, TEMPO-cellulose/silica/calcium carbonate composite, for efficient adsorption of water pollutants. The composite demonstrated high adsorption performance for methylene blue compared to cellulose/silica composite, making it a cost-effective and environmentally friendly alternative for water remediation.
CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Clemence Badie, Jae-Hyoung Lee, Ali Mirzaei, Hyoun Woo Kim, Syreina Sayegh, Mikhael Bechelany, Lionel Santinacci, Sang Sub Kim
Summary: In this study, a new structure based on Pd-decorated TiN-coated SnO2 nanowires (NWs) was designed for selective detection of H-2 gas. SnO2 NWs were grown using a vapor-liquid-solid method, followed by the deposition of a TiN layer and Pd nanoparticles using atomic layer deposition (ALD). H-2 gas sensing studies showed that the sensor with a 1 nm-thick TiN layer exhibited the highest response, which was further improved by Pd decoration. The optimized sensor demonstrated excellent sensitivity for hydrogen gas, making it suitable for real application in H-2 monitoring with high selectivity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Jeanne Casetta, Emilie Virapin, Celine Pochat-Bohatier, Mikhael Bechelany, Philippe Miele
Summary: Hollow fiber membranes were synthesized using PSF and GO, with the influence of PVP also investigated. The modified membranes showed larger pore sizes, lower WCA, and higher water permeability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Review
Biochemistry & Molecular Biology
Batoul Taleb, Rabih Jahjah, David Cornu, Mikhael Bechelany, Mohamad Al Ajami, Ghenwa Kataya, Akram Hijazi, Mohammad H. El-Dakdouki
Summary: Catalytic transfer hydrogenation is a pivotal chemical process with transformative potential in various industries. This review emphasizes the significance of catalytic transfer hydrogenation, which involves the transfer of hydrogen from one molecule to another using a distinct molecule as the hydrogen source in the presence of a catalyst. The advantages of catalytic transfer hydrogenation include enhanced safety, cost-effective hydrogen donors, byproduct recyclability, catalyst accessibility, and the potential for catalytic asymmetric transfer hydrogenation. The diverse range of hydrogen donor molecules utilized in this reaction have been explored, shedding light on their unique properties and their impact on catalytic systems and reactions. The future trends discussed in this review include the utilization of biomass-derived hydrogen donors, exploration of hydrogen storage materials, development of catalysts with enhanced activity and recyclability, and the utilization of eco-friendly solvents. The research in these areas aims to shape the future of catalytic transfer hydrogenation, enhancing its selectivity and efficiency across various industries and applications.
Article
Chemistry, Multidisciplinary
Ragab E. Abouzeid, Ramzi Khiari, Korany A. Ali
Summary: Novel adsorbent composite beads based on sodium alginate/Activated charcoal (SA/AC) were prepared and characterized. The beads showed effective adsorption capacity for methylene blue and could be regenerated multiple times without compromising adsorption efficiency. These beads have potential application in wastewater treatment.
CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY
(2023)