Journal of Water Process Engineering
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2025
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IF 6.7
Danish Iqbal,Waqar Iqbal,Raza Ullah,Renhai Zhao,Naveed Iqbal,Xin Ning
A novel environmentally-friendly conjugate structural membrane, composed of cuprammonium cellulose (CC), polyethylene oxide (PEO), and polyacrylonitrile (PAN), was fabricated using conjugate electrospinning. Adsorption of ciprofloxacin (CIP) from water was achieved using the conjugated membrane (CC-PAN). By combining PEO and PAN with CC, the membrane's mechanical strength was significantly enhanced, and notably improved its selective adsorption capability for antibiotics in both organic and inorganic systems. The CC-PAN membrane demonstrated high adsorption capacity for ciprofloxacin (CIP), reaching a maximum of 70.7 mg/g. The adsorption ability of CC-PAN towards CIP remained unaffected even at low CIP concentrations of 5 ppm in tap water. The adsorption mechanisms of CC-PAN onto CIP were extensively investigated by combining adsorption kinetics, thermodynamics, and isotherms. Spectroscopic methods were further employed to explore the interactions at various pH levels from 2 to 10. The adsorption capacity revealed a clear pH dependence. Specifically, at pH < 6.4, electrostatic attraction, interactions between electron donors and acceptors (likely hydrogen bonding), were the most predominant interactions. Furthermore, CC-PAN exhibited excellent stability, retaining 68 mg/g of its original adsorption capability during five successive adsorption-desorption repetitions. In addition to CIP, CC-PAN could also effectively remove tetracycline (TC) and trimethoprim (TMP). Based on these vital characteristics, CC-PAN demonstrates potential as an effective material for removing antibiotics from water through adsorption.
研究领域:
环境科学
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材料科学
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2024
·Vol. 59
·期 24
·10987-10997
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IF 3.5
Ao Haiyong,Duan Keke,Zhang Dongxue,Xun Xiaowei,Feng Fangfang,Liu Huiwen,Li Jiaxin,Li Yaqiang,Wan Yizao
Bacterial cellulose (BC) with excellent flexibility and biocompatibility has aroused great attention for wound healing. However, the surface inertness of BC nanofibers tremendously hindered its biofunctionalized to improve the antibacterial ability and cytocompatibility. Herein, the biofunctionalized BC was fabricated by in situ growing a uniformly polydopamine (PDA)/polyethyleneimine (PEI) coating and grafting bacitracin (BA) on the coating (BA-PPBC). The results confirmed that the BA-grafted PDA/PEI coating was distributed uniformly on the surface of BC nanofibers, and the natural three-dimensional pore structure and other physical properties of pristine BC were retained. Compared to BC, the obtained BA-PPBC materials exhibited excellent antibacterial activities against the adhesion and colonization of S. aureus and MRSA . Moreover, the BA-PPBC not only had no obvious cytotoxicity to NIH-3T3 cells, but also improved the adhesion, proliferation, and spread out of cells. This work provides a biofunctionalized BC dressing to simultaneously meet the requirements of wound healing.
研究领域:
生物材料学
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医学工程
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伤口愈合研究
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RSC Advances
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2025
·Vol. 15
·期 4
·2651-2656
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IF 4.6
Wenna Ge,Quanmao Wei,Xu Wang,Chenguang Lu,Hu Han,Yahua Liu
The ability to convert moisture signals into electrical signals through contactless control underpins a wide range of applications, including health monitoring, disaster warning, and energy harvesting. Despite its potential, the effective utilization of low-grade energy remains challenging, as it often requires complex device architectures that limit scalability and integration, particularly in wearable technologies. Here, we present a soft, flexible moisture-electric converter made from cellulose nanocrystals and polyvinyl alcohol composite films, designed for a novel touchless interactive platform. The device autonomously generates an electric output voltage of 200–700 mV in response to ambient moisture variations without requiring an external energy source. Its design, featuring a soft-adhered conductive carbon strip coupled with the composite film, provides high flexibility and portability. This configuration facilitates the creation of a non-contact control interface that seamlessly interacts with biological moisture from the human body, demonstrated by a mask that detects breathing conditions and a panel that measures contact distance. These advancements offer a promising pathway for developing flexible, intelligent electronic devices for wearable and touchless technologies.
研究领域:
材料科学
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生物医学工程
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能源技术
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Liping Wang,Yukun Li,Lei Ye,Chaohui Zhi,Tao Zhang,Ming Miao
This study explored the structure and performance of starch-based antibacterial films reinforced with black tea cellulose nanocrystals (BT-CNCs). The optimal addition amount of BT-CNCs is 5 % (w/w Starch). This nanocrystal-infused film, incorporating chitosan (CS), ε-polylysine (ε-PL), and zinc oxide nanoparticles (ZnONP) as antibacterial agents, exhibited a smooth, continuous surface. The addition of BT-CNCs and antibacterial agents did not change the group characteristic peaks of the film, but changed the crystallinity slightly. The films, namely St, St/CNCs, St/CNCs/CS, and St/CNCs/ε-P, maintained high light transmittance (above 80 %), except for the St/CNCs/ZnONP film, which effectively shielded UV radiation. The combined use of antibacterial agents and BT-CNCs enhanced the water and oxygen barrier properties of the film. Notably, the St/CNCs/CS film exhibited the lowest solubility (17.74 % ± 0.36) and the highest tensile strength (14.23 ± 0.16 MPa). The antibacterial efficacy of the films decreased in the order of St/CNCs/ZnONP, St/CNCs/ε-PL, and St/CNCs/CS, with a more pronounced inhibitory effect on E. coli compared to S. aureus . This study marries natural waste recycling with cutting-edge food packaging technology, setting a new benchmark for the development of sustainable packaging materials .
研究领域:
食品科学
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材料科学
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DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Yanyi Duan,Jiangjiexing Wu,Aihua Qiao,Xin Guo,Xiaotian Ge,Wei Qi,Anastasia Penkova,Rongxin Su
Marine optical devices face significant biofouling challenges, which compromise their transparency and disrupt their functionality. Existing coatings, typically relying on toxic biocides or dynamic surfaces, harm the marine environment and fail to meet the signal stability required for high-performance equipment. In this study, we introduce a fully bio-based approach to transparent antifouling coatings by developing zwitterionic cellulose nanofibers (ZCNF) modified with lysine, arginine, and histidine. Notably, this innovative modification exhibits enhanced hydrophilicity and antifouling properties compared to unmodified cellulose nanofibers, while also forming a stable antifouling surface, overcoming the key limitations of conventional materials. Laboratory and marine field tests demonstrate the remarkable long-term performance of ZCNF coatings, achieving up to 90 % antifouling efficiency in controlled environments and 80 % in real-world conditions after 150 days. This work provides a sustainable alternative for marine optical coatings, advancing the application of bio-based nanomaterials to address real-world marine challenges.
研究领域:
材料科学
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海洋生物学
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环境科学
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BIOCATALYSIS AND BIOTRANSFORMATION
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2024
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IF 1.4
Yuyang Zhou,Rongchen Mang,Huiyi Long,Yamiao Li,Hua Zhou,Dingqiang Lu
Dioctyl sebacate is a long carbon chain dibasic acid ester with methylene as the main body. It is widely used in plasticizers because of its good cold resistance and high viscosity. And it has excellent properties of non-toxicity and easy biodegradation, so it can be used as a potential new green bio-based plasticizer. At present, most of the preparation methods of dioctyl sebacate are chemical methods, which have many by-products and cause environmental pollution. In this article, cellulose microspheres were used as a carrier to immobilize Candida antarctica lipase B (CALB) to catalyse the esterification of sebacic acid and n-octanol to prepare dioctyl sebacate. Through single factor experiments, the lipase immobilized on cellulose microspheres was optimized to determine the best process conditions: add 500 µL CALB to the erlenmeyer flask, and then add 0.02 mol/L PBS buffer (pH 8.0). After being prepared into a 5 mL system, 0.1 g of cellulose microspheres were added as a carrier and reacted for 3 h at 35 °C and 180 r/min. Added 0.5 vt% polyethylene glycol diglycidyl ether (PEGDEG) to the system for crosslinking. The final immobilization rate of lipase immobilized on cellulose microspheres was 80.06%, and the enzyme activity was 288.07 U/g. Using the cellulose-immobilized lipase as a catalyst, in the toluene system, the molar ratio of n (sebacic acid)/n (n-octanol) substrate was 1:3.5, the amount of immobilized enzyme was 0.04 g, 4 Å molecular sieve 1.5 g, 40 °C, and 150 r/min for 30 h, the conversion rate of dioctyl sebacate was 76.45%.
研究领域:
生物催化
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化学工程
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绿色化学
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材料科学
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DOI
高影响因子
POLYMER COMPOSITES
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2024
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IF 4.8
Jingliang Xu,Zhiyuan Wang,Asraful Alam,Leiyu Liu,Shen Zhang
This study presents a novel hydrophobic lignocellulosic bioplastic from corn stover reinforced by oxidized cellulose and in situ regenerated lignin. Cellulose-lignin mixture as a matrix was obtained by acid-recyclable deep eutectic solvent (DES) pretreatment of corn stover in mild conditions. Triethoxy(octyl)silane (C 14 H 32 O 3 Si) was employed to improve the water stability of the bioplastic by vapor deposition. The results show that the hydrophobic bioplastic has a high tensile strength, measuring 62.36 MPa. The water contact angle of the bioplastic was increased from 8.50° to 121.9° after hydrophobic modification. We prepared oxidized cellulose-reinforced cellulose paper by different particle size distributions of oxidized cellulose to investigate the reinforcement of oxidized cellulose. The tensile strength of oxidized cellulose cellulose paper increased from 14.41 to 21.18 MPa with the addition of oxidized cellulose. The zeta potential of oxidized cellulose is −47.99 mV, which shows a more negative charge due to carbonyl groups. The repulsive force of oxidized cellulose contributes to the formation of a brick-and-mortar microstructure with cellulose-lignin mixture. It demonstrates that oxidized cellulose can act as bio-adhesives and has a good toughening effect on the mechanical properties of bioplastic. Highlights Lignocellulosic bioplastic was prepared by DES pretreatment of corn stover. Oxidized cellulose was used to reinforce the lignocellulosic bioplastic. The tensile strength of the bioplastic was 62.36 MPa after the reinforcement process. Trieth-oxy(octyl)silane was employed to improve water stability. The water contact angle of the bioplastic was increased from 8.50° to 121.9°.
研究领域:
材料科学
·
生物化学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Ruoyang Sun,Yumeng Xia,Mengyuan Peng,Yinghui Wang,Jinming Zhang,Qingtao Liu,Shouwei Zhang,Jinfeng Wang
Osmotic energy is a clean and renewable alternative resource to non-renewable fossil fuel. Harvesting this “blue” energy typically required ion-selective membranes. Two-dimensional (2D) materials are ideal scaffolds for constructing nanofluidic ion-selective membranes in osmotic energy conversion. However, the 2D membranes were often fragile and instable in solutions because of the weak van der Waals interactions between two-dimensional nanosheets. Here, stable MXene nanofluidic membranes were constructed by incorporating cellulose nanofiber (CNF) in MXene. The CNF was used as binder to enhance the mechanical stability in solutions. The resulted MXene/CNF membranes were investigated in terms of structure, ion selectivity and osmotic energy generation. The results showed that the MXene/CNF membranes exhibited excellent cation selectivity due to the negative charged carried by MXene and CNF, benefiting the osmotic energy conversion. The maximum power output density reached up to 1.32 and 0.338 W m −2 at 1000-fold KCl and 50-fold NaCl concentration gradient, respectively. Moreover, this MXene/CNF energy generator exhibited a long-term output stability. This work demonstrated the great potential of nanofluidic generators based on the two-dimensional material and the biomass material cellulose for osmotic energy conversion processes.
研究领域:
能源材料
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纳米技术
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环境科学
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DOI
高影响因子
ANALYTICAL LETTERS
·
2025
·
IF 1.8
Li Zhang,Shuya Wang,Xuelian Liu,Zhiyong Guo,Chen Zhang,Xi Chen
Fluorescence sensing for Pb2+ was developed using the in-situ growth of CsPbBr3 nanocrystals on a flexible cellulose film for the determination of Pb2+. Sulfhydryl groups were introduced onto the cellulose film to improve the extraction efficiency of Pb2+. The fluorescence signal exhibited a linear response to the Pb2+ concentration from 0.1 to 1.0 µg mL−1 with a detection limit of 3.2 × 10−2 µg mL−1. The film could be used to direct Pb2+ on a solid surface. The approach eliminates complex sample pretreatment, offering simplicity, cost-effectiveness, and rapid response. Its semi-quantitative capability shows promise for on-site screening of Pb2+ on surfaces (e.g., toy, pencils).
研究领域:
分析化学
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环境科学
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DOI
高影响因子
CEMENT & CONCRETE COMPOSITES
·
2024
·
IF 10.8
Aofei Guo,Danying Gao,Zhihui Sun,Hu Feng,Zhenyun Yu,Zeyu Guo,Hong Shang,Fengjuan Liu
Tricalcium silicate (C 3 S) is the primary ingredient in ordinary Portland cement (OPC). Understanding the hydration kinetics of C 3 S with cellulose nanocrystals (CNC) is the key to unveiling the intrinsic mechanism of CNC affecting OPC hydration . This study investigates the hydration interactions between C 3 S and CNC through extensive testing. Findings indicate that CNC incorporation can initially slow the hydration reaction and postpone the early-stage hydration of C 3 S. However, past the initial period (3 days in this study), CNC presence enhances the hydration pace and aids the hydration process , leading to an increase in the formation of calcium silicate hydrate (C–S–H) and calcium hydroxide (CH) without creating new phases. Further, the presence of CNC promotes the homogenous hydration of C 3 S, ensuring a homogenous distribution of hydration products . It also reduces the Ca/Si ratio in the C–S–H, without altering the C–S–H morphology. A correlation is made between heat flow and the thickness of hydration products enveloping C 3 S particles, confirming that CNC can intensify the inward water diffusion rate through C 3 S particles for the same hydration product thickness. Critically, it is found that the effect of CNC on C 3 S hydration is dependent on the water/C 3 S ratio. A low or moderate water/C 3 S ratio can promote C 3 S hydration but a very high water/C 3 S ratio diminishes the beneficial effects of CNC on C 3 S hydration. Finally, the study proposes a explanation for CNC's influence over the hydration of C 3 S with varying water/C 3 S ratios.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Siqi Zhan,Yanyan Bo,Hongyan Liu,Ruize Yuan,Wenhe Ding,Yuting Zhang,Dongxiu Zhang,Shiwei Wang,Mingyao Zhang
In recent years, safety laminated glasses have been widely used in construction, transportation, military, and other fields owing to their safety, comfort, and concealment. In this work, a cellulose nanocrystal was synthesized and blended in a polyurethane (PU) elastomer. Based on this, an aliphatic PU composite (CPU) film with high transparency and excellent mechanical properties has been achieved by stepwise polymerization. The mechanical properties and impact resistance of CPU composites were improved obviously, attributed to the microphase separation and hydrogen bonding. The tensile strength and bonding strength of the CPU film with glass can reach 53 and 3.4 MPa, which were 150 and 280% higher than those of the PU film, respectively. Extremely strong impact resistance of the laminated glass based on the CPU film has been confirmed by the falling ball impact test, which was 2.3 times that of polyvinyl butyral and 3.5 times that of PU. It will be an excellent candidate for safety laminated glass, which can be used in the aerospace, defense, and automotive fields.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
BIOMACROMOLECULES
·
2026
·
IF 5.4
Jiaqi Li,Xiao Yu,Hao Zhou,Xingchen Han,Dongdong Han,Yan Xu
Degree of circular polarization (DOCP) of reflected light is an intriguing optical phenomenon of chiral photonic materials; however, it remains underexploited. This is especially the case with cellulose nanocrystals (CNCs), despite the fact that their angle-dependent structural color has been overwhelmingly attended to. Herein, CNC-based chiral photonic materials capable of dual actuation are constructed by vacuum-assisted self-assembly. Leveraging femtosecond laser machining, complex structural color 3D shapes, and crawling robotic devices are produced from these materials. The incident angle-incident lasing wavelength-reflected light DOCP correlation and DOCP-based ternary code are established, based on which a secure and efficient robotic information transmission strategy is presented, where a message is simply synthesized from structural color photos using a single-use key and the encryption security increases with photo numbers by power law. Our work unleashes the hidden potential of CNC-based soft actuators and enables them for secure and efficient robotic data transmission.
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PubMed
高影响因子
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