Article
Polymer Science
Yanhui Kang, Fangyu Wang, Zeming Zhang, Jinping Zhou
Summary: The dissolution and molecular interactions of cellulose carbamate (CC) in NaOH/ZnO aqueous solutions have been investigated, with 7 wt% NaOH/1.6 wt% ZnO solution identified as the most suitable solvent for CC dissolution.
Article
Materials Science, Paper & Wood
Marjo Maattanen, Maria Gunnarsson, Helena Wedin, Sara Stibing, Carina Olsson, Tobias Kohnke, Sari Asikainen, Marianna Vehvilainen, Ali Harlin
Summary: The study investigates different pre-treatments for pre-consumer textiles to meet specific parameters for fiber production. Pre-treatments were able to make uncolored textiles suitable for both cold NaOH(aq) and cellulose carbamate processes, while colored textiles were only suitable for the cellulose carbamate process after pre-treatment. Further optimization of regeneration steps is expected to improve mechanical properties of the fibers produced.
Article
Materials Science, Paper & Wood
Saija Vaisanen, Rubina Ajdary, Michael Altgen, Kaarlo Nieminen, Kavindra K. Kesari, Janne Ruokolainen, Orlando J. Rojas, Tapani Vuorinen
Summary: Cellulose utilization often requires its dissolution in aqueous NaOH, but limitations such as low temperature and concentration are present. The addition of ZnO aids cellulose dissolution and prevents self-aggregation. This study proposed a new structure for cellulose dissolved in aqueous NaOH-ZnO based on Raman spectroscopic studies and TEMPO+-reactivities.
Article
Materials Science, Paper & Wood
Liangzhi Qiao, Chao Liang, Kaifeng Du
Summary: A facile and robust strategy using cellulose in NaOH/thiourea aqueous solution is reported for the rapid and scalable preparation of homogeneous and stable CNT dispersion. The CNT dispersion is demonstrated to be suitable for aqueous self-assembly of various functional materials, ranging from zero-dimensional (0D) microsphere to three-dimensional (3D) monolith through various molding techniques. The dispersion can also be used as ink for CNT-based paper and textile, showing potential for flexible and wearable devices.
Article
Materials Science, Paper & Wood
Saija Vaisanen, Harri Kosonen, Matti Ristolainen, Tapani Vuorinen
Summary: The study found that hydrolysis under medium consistency (10%) conditions can increase the solubility of cellulose, while hydrolysis under high consistency (50%) conditions only increases solubility to a certain extent, with prolonged treatment causing fiber aggregation and poor dissolution. Additionally, viscosity needs to decrease to a certain level for fiber dissolution to occur.
Article
Chemistry, Physical
E. Ashley Morris, Ruben Sarabia-Riquelme, Nik Hochstrasser, Jordan Burgess, Anne E. Oberlink, David L. Eaton, Matthew C. Weisenberger
Summary: The study reports on the early development of polyacrylonitrile-derived structural hollow carbon fibers with reduced wall thickness to achieve complete and homogeneous oxidation, thereby avoiding the skin-core structure often observed in commercial carbon fibers. The specific strength and specific modulus of hollow carbon fibers approached the levels of commercial carbon fibers.
Article
Chemistry, Applied
Guillermo Reyes, Rubina Ajdary, Esko Kankuri, Joice J. Kaschuk, Harri Kosonen, Orlando J. Rojas
Summary: We address the limited solubility and early gelation of aqueous sodium hydroxide by expanding the concentration window and controlling the solution flow and polymer alignment. This study demonstrates the potential for transforming cellulose into high-performance bioproducts.
CARBOHYDRATE POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Chuchu Chen, Qijing Wu, Yamei Zao, Jieru Ma, Zhangmin Wan, Suiyi Li, Dagang Li, Yongcan Jin
Summary: In this study, mechanically strong all-chitin filaments were fabricated using a wet-spinning strategy with squid pens. The preservation of chitin's crystalline structure and the formation of strong nanonetworks through alkali treatments contributed to the high mechanical performance of the filaments. This approach offers the advantages of no toxic solvents and achieving high mechanical performance, which could be applied in smart textiles, biosensors, and structural reinforcements.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
Si Meng, Yuyan Zhang, Nihuan Wu, Cheng Peng, ZhiYao Huang, Zhengjie Lin, Cheng Qi, Zhou Liu, Tiantian Kong
Summary: The development of implantable bioelectronics is driven by emerging applications including continuous health monitoring and human-machine interfacing. However, the mechanical mismatch between the implanted bioelectronics and tissues compromises device accuracy and causes interference with tissues. To address this issue, researchers have developed an ultrasoft and biocompatible fiber strain sensor using bacterial cellulose. This fiber possesses stretchability and elastic modulus similar to that of soft tissues, and it demonstrates high sensitivity to tiny tensile force/strain and low cell cytotoxicity. The bacterial cellulose-based sensing fiber shows potential for monitoring subtle motions of organs in implantable bioelectric devices.
Article
Materials Science, Paper & Wood
Jiewen Hu, Ruojia Li, Shaotong Zhu, Gangqiang Zhang, Ping Zhu
Summary: A novel wet-spun cellulose carbamate fiber technology was developed in this study to produce N-halamine regenerated cellulose fiber (RCC-Cl) with rechargeable and rapid bactericidal properties. The mechanical properties and antimicrobial activities of RCC-Cl fibers were characterized, showing great potential in the field of functional textiles.
Article
Materials Science, Multidisciplinary
Xialian Fan, Rong Xue, Na Li, Qian Yang, Chuan Yu, Yichen Dong, Yijin Li, Keyong Tang, Guangming Wan
Summary: This study successfully prepared cellulose sponges loaded with chitosan, which have abundant pore structure and high water absorption capacity. Animal experiments demonstrated their potential for rapid hemostasis. The sponges exhibit shape recovery ability and porous network structure, effectively reducing wound infection.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Applied
Jianyi Du, Javier Paez, Pablo Otero, Pablo B. Sanchez
Summary: It is crucial to monitor the structural evolution of complex fluids, such as in textile spinning, for optimal manufacturing performance. However, measuring these fluids in a textile-spinning process is challenging due to the lack of non-destructive instruments and data interpretation. This study uses a customized polarized microscope to simultaneously measure the kinetic and rheo-optic properties of a cellulose/ionic liquid solution during the wet-spinning process. The results provide key information on the fiber's geometry, structure, and flow dynamics, which are closely related to the mechanical properties of the fully-regenerated fibers and can predict spinning performance without destructive testing.
CARBOHYDRATE POLYMERS
(2023)
Article
Environmental Sciences
Chizuru Sasaki, Yuka Sumitomo, Kai Odashima, Chikako Asada, Yoshitoshi Nakamura
Summary: The study aimed to produce high yields of direct glucose hydrolysis from cotton towels and wheat straw using microwave-assisted treatment. Freeze-thawing with 3% NaOH before the microwave treatment significantly increased the glucose yields, showing a positive effect on the treatment conditions.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Chemistry, Applied
Muhammad Rizwan, Syeda Rubina Gilani, Arjumand Iqbal Durrani, Sobia Naseem
Summary: Advanced techniques such as Nitrogen protected microwave assisted extraction were used to extract cellulose from Acer platanoides, resulting in high yield of cellulose with improved crystallinity and thermal stability. Chemical treatments and analyses were conducted to study the properties of the extracted cellulose fibers, showing successful removal of lignin and hemicellulose with increased thermal stability compared to other pre-treated fibers.
CARBOHYDRATE POLYMERS
(2021)
Article
Polymer Science
Naveen Kumar Balakrishnan, Stefan Siebert, Christoph Richter, Robert Groten, Gunnar Seide
Summary: The textile industry is a major source of water pollution, but environmental pollution can be reduced by using dope dyeing. During the dope dyeing process, the drawing speed has a significant effect on the performance of the textile materials.
Article
Nanoscience & Nanotechnology
Yang Wang, Lina Zhang, Jinping Zhou, Ang Lu
ACS APPLIED MATERIALS & INTERFACES
(2020)
Review
Biochemistry & Molecular Biology
Yan Meng, Fengzhi Lyu, Xiaojuan Xu, Lina Zhang
Editorial Material
Chemistry, Multidisciplinary
Michael K. C. Tam, Michael A. R. Meier, Lina Zhang, David T. Allen, Peter Licence, Bala Subramaniam
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Multidisciplinary
Hu Tu, Mengxiang Zhu, Bo Duan, Lina Zhang
Summary: Cellulose, as the most abundant sustainable polymer, has the potential to act as an ideal substitute for plastics due to its low cost, wide availability, and biodegradability. Recent achievements in developing cellulose green solvents and regenerated cellulose materials with high strength through bottom-up approaches have shown potential applications in textiles, biomedicine, energy storage, packaging, etc. Importantly, these cellulose-based materials can be biodegraded in soil and oceans, reducing environmental pollution.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hu Tu, Kang Xie, Daofa Ying, Longbo Luo, Xiangyang Liu, Feng Chen, Bo Duan, Qiang Fu, Lina Zhang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Polymer Science
Daofa Ying, Zhenggang Wang, Yiran Zheng, Jie Cai, Lina Zhang
Summary: This study focuses on the effects of different tertiary butyl alcohol (TBA) aqueous solutions on chitin microsphere (CM) freeze-dried morphologies, resulting in fine nanofiber weaved pore structures with 20 and 100 wt% TBA, while other ratios showed poor morphology and pore characteristics. The 20 wt% TBA freeze-drying route is beneficial for separating microspheres and exploring internal structures.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Weijuan Huang, Shi Cheng, Xiaolan Wang, Yu Zhang, Lingyun Chen, Lina Zhang
Summary: This research introduces a catechol-conjugated chitosan multi-functional hydrogel that can rapidly achieve adhesion and hemostasis during surgery, with self-healing capabilities. In vivo experiments using a rabbit ilium bone defect model demonstrate the rapid hemostatic effect of the hydrogel and its promotion of bone regeneration.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Lin Huang, Xiaqing Yang, Linglong Deng, Daofa Ying, Ang Lu, Lina Zhang, Aixi Yu, Bo Duan
Summary: The nerve guidance conduit (NGC) made of a hydrogel film composed of chitin and conductive PEDOT nanoparticles was found to significantly promote Schwann cell adhesion and proliferation, leading to enhanced nerve regeneration. The composite material also showed similarities in muscle function and axon thickness compared to autografts in rat sciatic nerve defects, indicating its potential in accelerating peripheral nerve restoration.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Chuang Wang, Yingzhan Li, Hou-Yong Yu, Somia Yassin Hussain Abdalkarim, Jinping Zhou, Juming Yao, Lina Zhang
Summary: This study achieved functional reuse of waste cotton fabrics through green solvent-dissolved cellulose, overcoming microplastic pollution. Utilizing continuous meter-scale wet-spinning, high-value conductive fibers were synthesized for multifunctional wearable sensors and energy devices with excellent performances.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Xinghuan Lin, Lina Zhang, Bo Duan
Summary: A polyphenol-mediated self-assembly strategy was developed to enhance the strength and toughness of chitin hydrogels. These hydrogels showed high modulus and strength, while sacrificing bonds dissipated energy and led to high toughness. The hydrogels exhibited considerable antibacterial properties and excellent biocompatibility.
MATERIALS HORIZONS
(2021)
Article
Nanoscience & Nanotechnology
Kun Chen, Liqin Cai, Shixi Yang, Shuang Peng, Jinguo Huang, Jinglei Xu, Ziang Lu, Xiaojuan Xu, Boshi Fu, Lina Zhang, Xiang Zhou
Summary: The study developed a prodrug delivery system based on beta-(1 -> 3)-D-glucan modified with cisplatin, showing high anticancer activity and low toxicity. This system utilizes nanomaterials loaded with platinum prodrugs to effectively target and release in tumors, demonstrating significant antitumor properties in vitro and in vivo.
ACS APPLIED BIO MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Junmei Wang, Qiaoyun Cheng, Shengyao Feng, Lina Zhang, Chunyu Chang
Summary: This study fabricates mechano-thermo-chromic hydrogels with uniform interference colors by shearing tunicate cellulose nanocrystals and locking them into poly(N-isopropylacrylamide) networks. The oriented TCNC/PNIPAM hydrogels not only enhance mechanical properties but also show reversible responsiveness to tensile force, compression, and temperature. This work offers a new strategy for designing sustainable and stretchable optical devices with applications in sensors, environmental monitoring, and anti-counterfeiting labels.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Physical
Hu Tu, Kang Xie, Xinghuan Lin, Ruquan Zhang, Feng Chen, Qiang Fu, Bo Duan, Lina Zhang
Summary: By combining chemically-physically double cross-linking and stretching orientation strategies, a highly ordered cellulose nanofiber network and edge-hydroxylated boron nitride nanosheets (BNNS-OH) structure were constructed to fabricate a cellulose/BNNS-OH composite film with superior thermal conductivity. The composite film exhibited anisotropic thermal conductivity properties and excellent heat dissipation capabilities for cooling communication devices, while also showing potential for communication devices encapsulation and providing a new avenue for preparing highly oriented composite materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Materials Science, Biomaterials
Fengzhi Lyu, Xiaojuan Xu, Lina Zhang
JOURNAL OF MATERIALS CHEMISTRY B
(2020)
Article
Chemistry, Physical
Yang Wang, Lina Zhang, Ang Lu
JOURNAL OF MATERIALS CHEMISTRY A
(2020)