Article
Food Science & Technology
Shanshan Mei, Bofei Fu, Xianjie Su, Hongbin Chen, Hetong Lin, Zongping Zheng, Congjie Dai, Da-Peng Yang
Summary: This study focuses on designing cost-effective and sustainable edible packaging films with multifunctional activities. By incorporating silk sericin, chitosan, and carbon dots, the bio-nanocomposite films demonstrated enhanced flexibility, antimicrobial, and antioxidant properties compared to films made solely of silk sericin. The components were well dispersed within the film matrix network, and the presence of carbon dots allowed the films to exhibit blue fluorescent emission, which could be used as an anticounterfeit label. Furthermore, the fruit-litchi test confirmed the effectiveness of the bio-nanocomposite film in preserving nutritional components. Overall, this study provides insights into the use of silk sericin and carbon dots for the preparation of environmentally friendly edible food packaging films and their application in effective fruit preservation.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Hoyoung Lee, Dowon Ahn, Eunyoung Jeon, Derrick Wen Hui Fam, Joonseok Lee, Won Jun Lee
Summary: A simple method for controlled assembly of silk sericin fibers based on their secondary structure via wet-spinning was reported, producing stable linear fibers. Plasticization of silk sericin using glycerol immobilized with glutaraldehyde resulted in stable fibers with self-adhesion. Incorporation of cyclo-phenylalanine nanowires into the silk sericin dope demonstrated potential in artificial silk production.
Article
Materials Science, Multidisciplinary
Zuwei Luo, Mingzhong Li, Qiang Zhang, Renchuan You, Shuqin Yan, Xiufang Li, Li Ai, Pibo Ma
Summary: In this study, bamboo-derived cellulose nanofibrils (BCNFs) were used as reinforcers to prepare SF/BCNF nanocomposite films under an all-aqueous solvent system. The nanocomposite films showed improved mechanical properties and biocompatibility, making them a promising material for tissue engineering applications.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Paper & Wood
Ke Wang, Raj Shankar Hazra, Qian Ma, Long Jiang, Zhaohui Liu, Yuanming Zhang, Shudong Wang, Guangting Han
Summary: A bio-nanocomposite material consisting of silk fibroin/polyvinyl alcohol as the matrix, TEMPO-oxidized bacterial cellulose nanofiber as the reinforcement, and silver nanoparticles as an antibacterial agent was synthesized. The mechanical and chemical properties of the material can be tailored by adjusting the content of bacterial cellulose nanofiber. The material also exhibits strong UV shielding property, antibacterial activities, and low silver leakage.
Article
Polymer Science
Azelia Wulan Cindradewi, Rajkumar Bandi, Chan-Woo Park, Ji-Soo Park, Eun-Ah Lee, Jeong-Ki Kim, Gu-Joong Kwon, Song-Yi Han, Seung-Hwan Lee
Summary: In this study, cellulose acetate (CA)/cellulose nanofibril (CNF) film was prepared using eco-friendly plasticizers and varying CNF ratio. The dispersion of CNF in NMP was found to be better, leading to significant improvements in tensile strength and elastic modulus. The addition of CNF up to 5 phr loading enhanced the mechanical properties of the film composites.
Article
Materials Science, Paper & Wood
Haocheng Fu, Yongfeng Li, Bin Wang, Jinpeng Li, Jinsong Zeng, Jun Li, Kefu Chen
Summary: The study demonstrated that freeze-drying preserved the structural characteristics of LCNFs with high lignin contents, which alleviated fibril aggregation. The freeze-dried LCNFs were easily redispersed in water and used to fabricate high-strength composites. With the addition of redispersed LCNFs, the tensile strength and elongation at break of the composite film significantly increased, showing the potential for a more sustainable approach to produce biomass-based composite films.
Article
Polymer Science
Azelia Wulan Cindradewi, Rajkumar Bandi, Chan-Woo Park, Ji-Soo Park, Eun-Ah Lee, Jeong-Ki Kim, Gu-Joong Kwon, Song-Yi Han, Seung-Hwan Lee
Summary: This study prepared a PBS film reinforced with PCNF and LCNF through a two-step process, showing improved mechanical properties compared to the conventional one-step method. The impact of different lignin contents in LCNF on the mechanical properties of the PBS matrix was also investigated.
Article
Nanoscience & Nanotechnology
Araz Rajabi-Abhari, Jong-Nam Kim, Jeehee Lee, Rassoul Tabassian, Manmatha Mahato, Hye Jung Youn, Haeshin Lee, Il-Kwon Oh
Summary: The study utilizes diatom bio-silica as a biomaterial additive to enhance the output performance of cellulose nanofibril-based triboelectric nanogenerators. Diatom frustules form a tribo-positive composite film with CNFs, exhibiting good mechanical strength and high electron richness. The DF-CNF TENG shows promising output voltage and power generation capabilities, with potential applications in self-powered health monitoring devices and tactile feedback systems.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Jie Zhou, Zhiqiang Fang, Jinyi Cui, Xiao Zhang, Yong Qian, Weifeng Liu, Dongjie Yang, Xueqing Qiu
Summary: By using lignosulfonic acid as a reinforcing additive, transparent cellulose nanofibril film can achieve high strength and toughness simultaneously. This approach enhances hydrogen bonding and energy dissipation, resulting in superior mechanical properties and optical transparency of the nanocomposite film.
CARBOHYDRATE POLYMERS
(2021)
Review
Biotechnology & Applied Microbiology
Aditi Sammi, Divya, Supratim Mahapatra, Rahul Kumar, Pranjal Chandra
Summary: Silk, a fibrous protein with biocompatibility and mechanical resilience, has diverse morphologies and is widely used in various fields, especially as a biosensor for detecting molecules and cells. Its richness in diversity and personalization options make silk a popular choice among scientists for research and applications.
BIOTECHNOLOGY AND BIOENGINEERING
(2022)
Article
Polymer Science
Meng Li, Wei Tian, Yao Zhang, Hui Song, Yangxiao Yu, Xiangshang Chen, Nan Yong, Xiuzhen Li, Yin Yin, Qingmin Fan, Jiannan Wang
Summary: The periosteum is crucial for bone formation and reconstruction. Silk fibroin (SF) and silk sericin (SS) are promising biomaterials in bone tissue engineering due to their biocompatibility and physicochemical properties, but their lack of mechanical properties limits their application. In this study, SF/SS composite films with improved mechanical properties were developed using a boiling water degumming technique. The composite films exhibited enhanced breaking strength and toughness compared to SF films, and promoted faster hydroxyapatite (HAp) deposition. These findings suggest that SF/SS composite films have potential as biomaterials for the repair and regeneration of periosteum.
Article
Materials Science, Paper & Wood
Ke Wang, Raj Shankar Hazra, Qian Ma, Md Rakib Hasan Khan, Ashique Al Hoque, Long Jiang, Mohiuddin Quadir, Yuanming Zhang, Shudong Wang, Guangting Han
Summary: In this study, a sandwich membrane was created by integrating kombucha-derived bacterial cellulose (KBC) and silk nonwoven fabric (SNF) through the in situ growth of KBC on SNF. The SEM analysis showed that KBC not only grew on the surface of SNF but also within its fiber network. The integration of KBC significantly increased the strength and modulus of SNF. The resulting KBC/SNF membrane was further impregnated with silk sericin (SS) to provide strong UV shielding properties, and tests demonstrated its antioxidant activity and biocompatibility.
Article
Chemistry, Applied
Keyu Zhao, Changying Ren, Youwei Lu, Qijun Zhang, Qiang Wu, Siqun Wang, Chunping Dai, Wenbiao Zhang, Jingda Huang
Summary: This study presents a potential material choice for air filtration materials with high filtration efficiency and good thermal stability. By using cellulose nanofibril, poly (vinyl alcohol), and bamboo activated charcoal, a double filtration air filtration system was built. The resulting aerogel sheet showed excellent filtration efficiency for PM2.5 and high thermal stability even at high temperatures. Moreover, the modified hydrophobic filtration sheet could be reused multiple times with maintained filtration efficiency.
CARBOHYDRATE POLYMERS
(2022)
Article
Materials Science, Multidisciplinary
Kendra Fein, Douglas W. Bousfield, William M. Gramlich
Summary: Cellulose nanofibrils (CNFs) are studied for their barrier properties in packaging applications, with films formed using different methods showing varied characteristics. Analysis of the internal structure reveals a layered arrangement with elongated voids, contributing to excellent grease barrier properties.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Materials Science, Paper & Wood
Chuan Sun, Guanhui Li, Jingyu Wang, Zhiqiang Fang, Famei Qin, Kaihuang Chen, Jie Zhou, Xueqing Qiu
Summary: The research reveals the influence of the interaction between montmorillonites and cellulose nanofibrils on the properties of nanocomposite films. Monolayer montmorillonites form highly ordered nanostructures during self-assembly, leading to nanocomposite films with high tensile strength, light transmittance, and water vapor transmission rate. The introduction of cationic polyethylenimine further enhances the physical properties of the nanocomposite films, but excessive polyethylenimine content leads to a performance deterioration.
Article
Chemistry, Multidisciplinary
June-Ho Choi, Seong-Min Cho, Jong-Chan Kim, Sang-Woo Park, Young-Min Cho, Bonwook Koo, Hyo Won Kwak, In-Gyu Choi
Summary: The study found that extraction conditions significantly impact the structural characteristics of ethanol organosolv lignin, with different structural features exhibiting varying effects on thermal properties. Lignins with low molecular weight and high phenolic hydroxyl content showed excellent thermal properties.
Article
Electrochemistry
Jun Ryu, Saemon Yoon, Seojun Lee, Donggun Lee, Bhaskar Parida, Hyo Won Kwak, Dong-Won Kang
Summary: The conventional IPA rinsing step was found to cause the formation of an undesirable Cs4PbBr6 phase, while using ethanol as a rinsing solvent led to a pure-phase CsPbBr3 crystal with improved charge extraction properties. Experimental results showed that ethanol as a rinsing solvent significantly enhanced the performance of the perovskite solar cells and maintained stability.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Applied
Hyo Won Kwak, Jinseok Park, Haesung Yun, KyoungHwa Jeon, Dong-Won Kang
Summary: By adding sugars, gelatin nanofibers have increased stability against hydrolytic degradation, enhanced mechanical properties, and antioxidant functions.
FOOD HYDROCOLLOIDS
(2021)
Article
Materials Science, Characterization & Testing
Jeongmin Nam, Yujin Hyun, Subin Oh, Jinseok Park, Hyoung-Joon Jin, Hyo Won Kwak
Summary: The fabrication of a functionalized bacterial cellulose-derived nanocrystal on existing sericin films enhances their mechanical properties and develops ultraviolet-blocking, water-resistant, and antioxidant properties.
Article
Polymer Science
Junsik Bang, Hyunju Lee, Yemi Yang, Jung-Kwon Oh, Hyo Won Kwak
Summary: The focus on developing eco-friendly plastics and sustainable materials has led to a growing interest in high-strength and functional natural fiber-based composite materials. A fibrous composite with excellent mechanical properties was prepared by applying bamboo-derived nano and microfiber multiscale hybridization, improving its tensile strength and toughness. This eco-friendly nano/micro fibrous preform can be extensively utilized in the green plastic industry.
Article
Chemistry, Applied
Jong-Chan Kim, Jungkyu Kim, Jinseok Park, Jung-Kwon Oh, In-Gyu Choi, Hyo Won Kwak
Summary: The study involved the preparation of chemically modified lignin and alginate hybrid adsorbents for efficient removal of cationic dyes. The encapsulation of carboxylated lignin into alginate beads resulted in higher methylene blue removal capacity due to the introduction of carboxylated anions. The Alg/C-Lig beads exhibited a high monolayer maximum adsorption capacity and stable adsorption efficiency even after multiple adsorption/desorption cycles, making them a promising candidate for dye wastewater purification.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Agricultural Engineering
Jong-Hwa Kim, June-Ho Choi, Jong-Chan Kim, Soo-Kyeong Jang, Hyo Won Kwak, Bonwook Koo, In-Gyu Choi
Summary: The main goal of this study was to produce succinic acid from hemicellulose in lignocellulosic biomass through a continuous process without purification. Liquid hot water treatment was used to extract water soluble hemicelluloses from Quercus mongolica to produce furfural, which was further oxidized to succinic acid. Acid catalyzed dehydration was also conducted on the liquid hydrolysate for furfural production.
BIOMASS & BIOENERGY
(2021)
Article
Chemistry, Applied
YunJin Kim, Junsik Bang, Jungkyu Kim, June-Ho Choi, Sung-Wook Hwang, Hwanmyeong Yeo, In-Gyu Choi, Hyoung-Joon Jin, Hyo Won Kwak
Summary: Nanocellulose is gaining interest as an eco-friendly water treatment material due to its large specific surface area and abundant hydroxyl functional groups, but its dispersion state hampers practical usage. A regenerated cellulose hydrogel with cationic functional groups was developed to address the low performance of nanocellulose in removing anionic pollutants. The PEI surface cationization process improved mechanical rigidity and showed excellent Cr(VI) removal capacity, maintaining high efficiency after multiple reuses.
CARBOHYDRATE POLYMERS
(2022)
Article
Polymer Science
Munju Shin, Sejun Yang, Hyo Won Kwak, Ki Hoon Lee
Summary: Various natural materials, including silk sericin (SS), have been used for the synthesis of gold nanoparticles (AuNPs). In this study, AuNPs were successfully synthesized using SS, and optimal synthesis conditions were determined. The size of the AuNPs prepared under the optimal conditions was approximately 17 nm, and the particles were well dispersed.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Applied
Jungkyu Kim, Junsik Bang, YunJin Kim, Jong-Chan Kim, Sung-Wook Hwang, Hwanmyeong Yeo, In-Gyu Choi, Hyo Won Kwak
Summary: In this study, a facile and simple nanocellulose drying system was designed using lignin as an eco-friendly additive to overcome the agglomeration issue during the drying process. The addition of lignin minimized aggregation and ensured excellent redispersion kinetics and stability, with the added lignin being removable through a simple washing process.
CARBOHYDRATE POLYMERS
(2022)
Article
Engineering, Environmental
YunJin Kim, Jinseok Park, Junsik Bang, Jungkyu Kim, Hyoung-Joon Jin, Hyo Won Kwak
Summary: Nanocellulose has promising applications in water treatment due to its unique properties, such as renewability and large surface area; a study showed that carboxymethyl cellulose nanofibrils modified with polyethyleneimine had excellent Cr(VI) removal capacity and stability; the removal of Cr(VI) was achieved through a combination of electrostatic attraction, chemical reduction, and chelation mechanisms.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
YunJin Kim, Jinseok Park, Junsik Bang, Jungkyu Kim, Jong-Hwa Kim, Sung-Wook Hwang, Hwanmyeong Yeo, In-Gyu Choi, Hyo Won Kwak
Summary: The study explored the potential of lignin as an adsorption material for water restoration and dye removal. By crosslinking lignin fibers and utilizing a natural crosslinking agent, the lignin/PVA fibers exhibited excellent dye removal capacities. The desorption process was most efficient under low pH conditions, and the fibers maintained a 95% adsorption efficiency after five regeneration cycles.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Multidisciplinary Sciences
Jungkyu Kim, Subong Park, Junsik Bang, Hyoung-Joon Jin, Hyo Won Kwak
Summary: The development and utilization of biodegradable plastics is an effective solution to environmental pollution caused by non-degradable plastics. A biodegradable polymer called PBEAS, which has excellent strength and elongation, has been developed to replace non-degradable fishing nets. This eco-friendly fishing gear can prevent ghost fishing and potential microplastic leakage by collecting and composting the products after use.
Article
Polymer Science
Jungkyu Kim, Sangwoo Park, Seungoh Jung, Heecheol Yun, Kyusuk Choi, Gyeom Heo, Hyoung-Joon Jin, Subong Park, Hyo Won Kwak
Summary: This study evaluates the biodegradability of PBS fishing gear in marine sedimentary environments, aiming to address the issue of ghost fishing caused by discarded gear. Through biodegradation analysis, it is found that after 180 days, the PBS gear reduces to carbon dioxide by 27.3%. The remaining PBS shows bulk erosion and no changes in crystallinity and thermal properties. The degradation primarily occurs through surface abrasion and metabolic utilization of hydrolysis products by microorganisms.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Materials Science, Multidisciplinary
Subin Oh, Junsik Bang, Hyoung-Joon Jin, Hyo Won Kwak
Summary: Currently, the majority of oil-water separation membranes are made of fluorine-based polymers with low surface energy. However, these materials are non-biodegradable and require a large amount of organic and toxic solvents in the manufacturing process. Therefore, there is increasing interest in developing a new eco-friendly oil-water separation membrane that does not cause secondary pollution and exhibits selective wettability characteristics.
ADVANCED FIBER MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
