INDUSTRIAL CROPS AND PRODUCTS
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2026
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IF 6.4
Ning Zhang,Man Zhou,Yonggui Li,Xiang Mi,Qiang Wang
It is still a challenge to develop a textile that can quickly enhance its bactericidal activity when exposed to a lot of sweat. Here, we propose a strategy that combines Glucose oxidase (GOx), AgNPs, and a phase-transited lysozyme composite coating (Ag-GOx-PTL) to achieve a synergistic rapid bactericidal effect. First, an antibacterial PTL coating was formed on the fabric surface, where a large number of reducing amino acids on the PTL reduced Ag + to AgNPs and anchored them to the fiber. Then, glucose oxidase was immobilized on the PTL coating through bioconjugation techniques. Due to the synergistic effect of PTL and AgNPs, the antibacterial rate of GOx-Ag-PTL@wool reached 99.99 %. When exposed to a lot of sweat, the excellent hydrophilicity makes water droplets spread on the whole fabric within 1 s. Under the catalysis of glucose, the rapid killing rate of GOx-Ag-PTL@wool reached 99.56 % for E. coli and 98.59 % for S. aureus (10 min). Additionally, GOx-Ag-PTL@wool exhibits excellent breathability, moisture permeability, and UV resistance. This research holds potential application value in enhancing the rapid antibacterial performance of composites and developing materials for sportswear.
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INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Ning Zhang,Wenda Wang,Man Zhou,Yuanyuan Yu,Ping Wang,Qiang Wang
The development of multifunctional, stable, and secondarily reactive surface coatings is highly desirable, regardless of the surface structure and chemistry of the textile. However, it has remained a great challenge until now. Commonly used strategies for textile surface functionalization are limited to certain types of fibers or weak and unreliable surface bonds, as well as colored surfaces. Herein, a supramolecular assembly strategy involving phase-transited lysozyme (PTL) and tannic acid (TA) is proposed, which can be used to functionalize various textiles through simple padding and drying. This coating has been shown to withstand 50 washing cycles and 100 rubbing cycles. The PTL/TA coating not only effectively improves the antibacterial properties of textiles (with a 99% bacteriostatic rate), but also enhances UV resistance and antioxidant properties. Additionally, the PTL/TA coating can serve as a secondary reaction platform to prepare X-PTL/TA@fabrics with various functionalities. For instance, sol-gel functional finishing can be employed to achieve hydrophobic modification of fabrics. Furthermore, electroless deposition of Cu on the coating surface can impart infrared stealth and electromagnetic shielding properties to the fabric. PTL/TA coatings exhibit promising practical application prospects as a bridge between various textiles and multifunctionality.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Ning Zhang,Rongjin Shi,Man Zhou,Ping Wang,Yuanyuan Yu,Qiang Wang
Textiles with efficient and long-lasting antibacterial properties have attracted significant attention. However, a single antibacterial model is insufficient to with variable environments and achieve higher antibacterial activity. In this study, lysozyme was used as assistant and stabilizer, and the efficient peeling and functional modification of molybdenum disulfide nanosheets were realized by ultrasonic. Additionally, lysozyme in the presence of reducing agents to form amyloid-like phase-transited lysozyme (PTL) and self-assembling on the wool fabric. Finally, the AgNPs are reduced in situ by PTL and anchored onto the fabric. It has been demonstrated that Ag-MoS 2 /PTL@wool generates ROS under light irradiation, rapidly converts photothermal heat into generate hyperthermia, and promotes the release of Ag + . The aforementioned “four-in-one” approach resulted in bactericidal rates of 99.996 % (4.4 log, P < 0.0005) and 99.998 % (4.7 log, P < 0.0005) for S.aureus and E.coli , respectively. Even after 50 washing cycles, the inactivation rates remained at 99.813 % and 99.792 % for E.coli and S.aureus , respectively. In the absence of sunlight, AgNPs and PTL continue to provide continuous antibacterial activity. This work emphasizes the importance of amyloid protein in the synthesis and application of high-performance nanomaterials and provides a new direction for the safe and effective application of multiple synergistic antibacterial modes for microbial inactivation.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Qishan Fu,Muzi Yang,Zhongfei Liu,Hao Yang,Fengquan She,Xiaoqi Zhang,Fangyan Xie,Yuwen Hu,Jian Chen
Two-dimensional (2D) transition metal carbides (MXene) have shown great advantages as electrode materials in the new generation of energy storage, especially in supercapacitors . However, the inherent low specific capacitance and restacking layers of nanosheets that occur during electrode preparation further reduce the electrochemical performance of the materials. Based on this, we design a N, S co-doping electrode with a three-dimensional (3D) structure, which not only improves the specific capacitance through fundamentally modifying the electronic structure of the electrode materials, but also effectively improves the rate performance of the electrode by preventing the restacking of 2D materials . The N, S co-doping 3D architecture Ti 3 C 2 T x electrode (TC/NS-3D) exhibits an excellent capacitance value of 440 F g −1 at 5 mV s −1 and 64% capacitance retention rate at a high scan rate of 1000 mV s −1 in 3 mol L −1 H 2 SO 4 electrolyte. The TC/NS-3D electrode also shows excellent capacitance retention of 97.2% after the 10,000 cycles stability test. The density functional theory (DFT) analysis reveals the enhanced performance is attributed to accelerated intermediates transport kinetics promoted by 3D structure engineering and N, S co-doping for Ti 3 C 2 T x . This study is promising in designing heteroatomic doping 3D structure MXene-based materials for electrochemical energy storage systems.
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CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Ning Zhang,Zhicheng Deng,Qiang Wang,Man Zhou,Ping Wang,Yuanyuan Yu
Functional coatings with breathability, moisture permeability and antibacterial properties are extremely popular in textile applications. The secondary reactions of the surface coating are greatly important and have attracted attention since they can make the coating a multifunctional platform by customizing the surface characteristics. However, common coatings such as polydopamine are restricted in textile fuctionalization due to their undesired color. In this study, we developed an amyloid-like natural protein coating on wool textile based on the phase-transited assembly of lysozyme. It is found that this coating significantly improve the hydrophilicity and moisture permeability of wool fabrics, which can withstand 50 washing cycles and 100 friction losses. The coated fabric maintained antibacterial properties for a long time in a humid environment after soaked in simulated sweat. At the same time, we used phase-transited lysozyme (PTL) as the secondary reaction platform to generate silver nanoparticles (AgNPs) in-situ, which endows the fabric with excellent antibacterial properties. Interestingly, the finished fabric still maintains an excellent antibacterial rate after 50 washing cycles. This work shows that the secondary reactivity of the PTL assembly coating provides a facile and adaptable platform which is promising to realize diverse functionalization of textiles. It has overcome the color problem of commonly-used bionic coatings, thus providing new insights for the surface modification of other natural or synthetic fibers.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Ning Zhang,Yujie Xu,Rongjin Shi,Man Zhou,Yuanyuan Yu,Ping Wang,Qiang Wang
With the improvement of the hygiene awareness and pathogen prevention awareness of patients and medical staff, textiles with efficient and long-lasting pathogen inactivation effects are urgently needed. Photodynamic therapy (PDT) has rapidly developed into a new type of antibacterial technology due to its high antibacterial activity and has received widespread attention. However, the commonly used photosensitizers are mostly inorganic nanomaterials, which have poor adhesion to textiles and are not environmentally or human friendly. Here, we report a strategy of preparation of a sunlight-driven rechargeable antibacterial textiles based on natural antibacterial agents, which can work in light and dark conditions. The prepared BD-PTL@wool has long-lasting antibacterial properties, can rapidly produce ROS, and can store sterilization activity under light irradiation, ensuring all-day bacterial killing (>99.95 % under light irradiation and >99.80 % under dark conditions after light irradiation). BD-PTL@wool has excellent reusability, and the antibacterial rate can still above 95 % after repeated use for 5 times. In addition, BD-PTL@wool has excellent hydrophilic, UV resistance, biocompatibility and can withstand 50 washing cycles. The successful application of this strategy in textile preparation broadens the research idea for exploring the application of green photosensitive antibacterial materials in textile field.
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Nature Communications
·
2021
·Vol. 12
·期 1
·1-10
·
IF 14.919
Xu Xiaozhi,Wang Jiajie,Zhou Awu,Dong Siyuan,Shi Kaiqiang,Li Biao,Han Jingbin,O’Hare Dermot
Membrane-based gas separation exhibits many advantages over other conventional techniques; however, the construction of membranes with simultaneous high selectivity and permeability remains a major challenge. Herein, (LDH/FAS) n -PDMS hybrid membranes, containing two-dimensional sub-nanometre channels were fabricated via self-assembly of unilamellar layered double hydroxide (LDH) nanosheets and formamidine sulfinic acid (FAS), followed by spray-coating with a poly(dimethylsiloxane) (PDMS) layer. A CO 2 transmission rate for (LDH/FAS) 25 -PDMS of 7748 GPU together with CO 2 selectivity factors (SF) for SF(CO 2 /H 2 ), SF(CO 2 /N 2 ) and SF(CO 2 /CH 4 ) mixtures as high as 43, 86 and 62 respectively are observed. The CO 2 permselectivity outperforms most reported systems and is higher than the Robeson or Freeman upper bound limits. These (LDH/FAS) n -PDMS membranes are both thermally and mechanically robust maintaining their highly selective CO 2 separation performance during long-term operational testing. We believe this highly-efficient CO 2 separation performance is based on the synergy of enhanced solubility, diffusivity and chemical affinity for CO 2 in the sub-nanometre channels.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2020
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IF 4.939
Chenshi Shang,Ze Wang,Lulu Wang,Jilin Wang
A new type of symmetrical bis-crown ether is prepared by connecting dibenzo-18-crown-6 ether on both sides of the chromotropic acid , and then grafting the aforementioned bis-crown ether onto polyvinyl alcohol matrix to prepare a series of anion exchange membranes (AEMs), which their have high conductivity and strong alkali stability. These synthesized membranes were named B-C X% -P AEMs (x is the mass percentage of the symmetrical bis-crown ether (B–C)). Then, the chemical structure of aforementioned AEMs were verified by means of 1 H NMR, FT-IR and UV. Meanwhile, the OH − conductivity, alkaline stability and single cell performance of the synthesized membrane were also investigated. The results revealed that the conductivity of B–C 30% -P membrane is the highest at 80 °C (235 mS cm −1 ), and the power density is also the highest (197 mW cm −2 ), and the alkali stability of the membrane synthesized in this paper was also improved. The conductivity at 80 °C was only reduced by 4%, which was obtained by immersing the B–C 30% -P membrane immersed in 6 mol L −1 KOH solution for 168 h, which the aforementioned results proved that the synthesized membrane in this research had excellent OH − conductivity and alkaline stability.
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INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
·
2018
·
IF 1.372
Yuanyuan Ding,Jianhong Yang,Jun Cai
Guanidinylated carboxymethyl chitosan (GCMCS) was prepared via the guanidinylation of carboxymethyl chitosan (CMCS). A device employing the diffusive gradients for thin films (DGT) technique was made using a GCMCS aqueous solution as the binding agent and a cellulose acetate dialysis membrane (CADM) as the diffusion phase to measure labile Cu2+, Pb2+ and Cd2+ in water. The percentage uptake (U%) values of labile Cu2+, Pb2+ and Cd2+ in a synthetic water sample were almost consistent with the theoretical values at 101.6 ± 2.8%, 104.6 ± 6.1% and 95.9 ± 4.4%, respectively. The optimum pH ranges for the measurement of labile Cu2+, Pb2+ and Cd2+ were 3.0–7.0, 3.0–7.0 and 4.0–8.0, respectively. The ionic strength mainly affected the diffusion of metal ions in the CADM. The diffusion rates decreased with increasing concentrations of NaNO3 solutions. The application of GCMCS-DGT in natural water and industrial wastewater showed that dissolved organic carbon (DOC) only affects metal species, and the accurate determination of labile Cu2+, Pb2+ and Cd2+ can be achieved when the diffusion coefficients of these metal ions in the diffusion phase have been determined. GCMCS is suitable for DGT application as a chelating agent for metal ions.
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JOURNAL OF MOLECULAR STRUCTURE
·
2013
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IF 1.404
Zhihua Cui,Xin Li,Xidong Wang,Kemei Pei,Weiguo Chen
Two N -heterocycle-containing benzotriazole compounds ( CBHDCP , CBMPP ) were synthesized and their structures were confirmed by FT-IR, 1 H NMR, mass spectroscopy and elemental analysis. Their spectral properties compared with that of a common commercial benzotriazole UV absorber Tinuvin 326 in solvents were measured and analyzed using molecular orbital calculations. It was found that the experimentally obtained optical properties were in close agreement with the theoretically obtained results. Besides, CBMPP is much superior to CBHDCP acting as an effective UV absorber on polyethylene terephthalate fabric due to its combinative higher exhaustion and higher molar extinction coefficient. The exhaustion difference on polyethylene terephthalate fabric among N -heterocycle-containing benzotriazoles ( CBHDCP , CBMPP ) and Tinuvin 326 were then measured and explained by the solubility parameter theory. The results agreed with the rule that compounds with higher exhaustion on fiber have solubility parameter much closer to that of fiber polymer.
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FUEL
·
2015
·
IF 3.52
Benqiao He,Yixuan Shao,Mengzhu Liang,Jianxin Li,Yu Cheng
Guanidinylated chitosan (GCS), as a heterogeneous alkaline catalyst for the transesterification of soybean oil with methanol, was synthesized by grafting aminoiminomethanesulfonic acid onto chitosan. The structure and properties of GCS membrane were investigated by Fourier transform infrared spectroscopy, thermogravimetry and X-ray photoelectron spectroscopy. The soybean oil conversion reached 98.8% at the first run and 96.6% at the fifth run under the reaction conditions: catalyst amount of 20 wt.%, methanol/oil mass ratio of 2.5:1 at 60 °C for 6 h. Results show that the transesterification mainly took place on the surface of the catalytic membrane. The kinetics study of the transesterification was undertaken in terms of pseudo-homogeneous model and performed as a first order reaction with an activation energy of 76.95 kJ/mol and pre-exponential factor of 7.94 × 10 9 min −1 .
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2017
·
IF 4.233
Yuanxiu Yang,Xinjiang Hu,Yunlin Zhao,Lihua Cui,Zhujian Huang,Jianliang Long,Jiawen Xu,Jianbin Deng,Cuiyu Wu,Wenwei Liao
Thiourea-dioxide–reduced magnetic graphene oxide (TDMGO) was successfully prepared as an efficient adsorbent for the removal of tetracycline (TC) from aqueous solutions via strong adsorptive interactions. The composite was characterized by SEM, TEM, EDS , TGA , FT-IR, XPS, XRD and VSM . The effects of variables such as the pH, TC concentration, and temperature were successfully analyzed. The kinetics and isothermal parameters were described well by pseudo-second-order and Langmuir isotherm models, respectively, and the maximum adsorption capacity ( q m ) of TDMGO for TC calculated from the Langmuir isotherm was 1233 mg/g at 313 K. The removal of TC onto TDMGO, as indicated by the thermodynamic parameters, was spontaneous and endothermic. The removal performance was slightly affected by the solution pH. The presence of NaCl in the solution facilitated TC adsorption, and the optimum adsorption capacity was obtained when the NaCl concentration was >0.001 M. The adsorption capacity decreased slightly with increasing humic acid concentration. In addition, the adsorbent could be regenerated and reused. Based on these results, TDMGO is a promising adsorbent for the efficient removal of TC antibiotics from aquatic environments for pollution treatment.
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