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Article ; Online: Design and Analysis of a Textured Cu-Encapsulated Ni Tube for Low-Reflection Electromagnetic Interference Shielding Material.

Wan, Jiajia / Sun, Di / Li, Peng / Huang, Junjun / Chen, Zhenming

Langmuir : the ACS journal of surfaces and colloids

2024 Volume 40, Issue 17, Page(s) 9244–9254

Abstract: With the frequent increase and update of electromagnetic interference (EMI) shielding materials, a low-resolution material that can absorb most electromagnetic waves, thereby effectively reducing the secondary pollution, is urgently needed. However, the ... ...

Abstract	With the frequent increase and update of electromagnetic interference (EMI) shielding materials, a low-resolution material that can absorb most electromagnetic waves, thereby effectively reducing the secondary pollution, is urgently needed. However, the excellent performance, flexibility, and low cost of these methods are usually incompatible with current reports. To address the above dilemma, we reported a facile solution for fabricating a low-reflection and high-performance EMI shielding composite by means of electroless nickel plating (EP-Ni), electroless copper plating (EP-Cu), annealing, and coating with a polydimethylsiloxane (PDMS) polymer with the structure of a Ni@Cu tube encapsulated with PDMS. The results indicate that the active groups on vegetable wool can act as active sites for the absorption of the Pd catalyst, thereby catalyzing the reduction of Ni
Language	English
Publishing date	2024-04-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.4c00677
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Fabrication of Electrode Material for Textile-Based Triboelectric Nanogenerators: Research of the Relationship between Output Performance and Dielectric Material Strain.

Gui, Chengmei / Li, Jing / Zhang, Zifeng / Chen, Zhenming / Huang, Junjun / Li, Honglin

Langmuir : the ACS journal of surfaces and colloids

2024 Volume 40, Issue 8, Page(s) 4022–4032

Abstract: In this work, a textile-based triboelectric nanogenerator (TENG) device was developed through electroless plating technology to prepare electrode material. Hydrophilic groups on the fiber surface are able to absorb ... ...

Abstract	In this work, a textile-based triboelectric nanogenerator (TENG) device was developed through electroless plating technology to prepare electrode material. Hydrophilic groups on the fiber surface are able to absorb Ag
Language	English
Publishing date	2024-02-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.3c02375
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Dynamic Covalent Bonded Gradient Structured Actuators with Mechanical Robustness and Self-Healing Ability.

Yu, Chuansong / Li, Xinkai / Yang, Xin / Qiu, Xiaoyan / Zhang, Xinxing / Chen, Zhenming / Luo, Yanglin

Small (Weinheim an der Bergstrasse, Germany)

2024 , Page(s) e2311656

Abstract: Flexible actuators with excellent adaptability and interaction safety have a wide range of application prospects in many fields. However, current flexible actuators have problems such as fragility and poor actuating ability. Here, inspired by the ... ...

Abstract	Flexible actuators with excellent adaptability and interaction safety have a wide range of application prospects in many fields. However, current flexible actuators have problems such as fragility and poor actuating ability. Here, inspired by the features of nacre structure, a gradient structured flexible actuator is proposed with mechanical robustness and self-healing ability. By introducing dynamic boronic ester bonds at the interface between MXene nanosheets and epoxy natural rubber matrix, the resulting nanocomposites with ordered micro-nano structures exhibit excellent tensile strength (25.03 MPa) and satisfactory repair efficiency (81.2%). In addition, the gradient distribution structure of MXene nanosheets endows the actuator with stable photothermal conversion capability, which can quickly respond to near-infrared light stimulation. The interlayer dynamic covalent bond crosslinking enables good response speed after multiple bending and is capable of functional self-healing after damage. This work introduces gradient structure and dynamic covalent bonding into flexible actuators, which provides a reference for the fabrication of self-healing soft robots, wearable, and other healable functional materials.
Language	English
Publishing date	2024-02-02
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2168935-0
ISSN	1613-6829 ; 1613-6810
ISSN (online)	1613-6829
ISSN	1613-6810
DOI	10.1002/smll.202311656
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Article: High-efficiency depolymerization/degradation of polyethylene terephthalate plastic by a whole-cell biocatalyst.

Fang, Yaxuan / Chao, Kexin / He, Jin / Wang, Zhiguo / Chen, Zhenming

3 Biotech

2023 Volume 13, Issue 5, Page(s) 138

Abstract: Polyethylene terephthalate (PET) is the most abundantly produced plastic due to its excellent performance, but is also the primary source of poorly degradable plastic pollution. The development of environment-friendly PET biodegradation is attracting ... ...

Abstract	Polyethylene terephthalate (PET) is the most abundantly produced plastic due to its excellent performance, but is also the primary source of poorly degradable plastic pollution. The development of environment-friendly PET biodegradation is attracting increasing interest. The leaf-branch compost cutinase mutant ICCG (F243I/D238C/S283C/Y127G) exhibits the best hydrolytic activity and thermostability of all known PET hydrolases. However, its superior PET degradation is highly dependent on its preparation as a purified enzyme, which critically reduces its industrial utility. Herein, we report the use of rational design and combinatorial mutagenesis to develop a novel ICCG mutant RITK (D53R/R143I/D193T/E208K) that demonstrated excellent whole-cell biocatalytic activity. Whole cells expressing RITK showed an 8.33-fold increase in biocatalytic activity compared to those expressing ICCG. Thermostability was also improved. After reacting at 85 °C for 3 h, purified RITK exhibited a 12.75-fold increase in depolymerization compared to ICCG. These results will greatly enhance the industrial utility of PET hydrolytic enzymes and further the progress of PET recycling. Supplementary information: The online version contains supplementary material available at 10.1007/s13205-023-03557-4.
Language	English
Publishing date	2023-04-25
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2600522-0
ISSN	2190-5738 ; 2190-572X
ISSN (online)	2190-5738
ISSN	2190-572X
DOI	10.1007/s13205-023-03557-4
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Article ; Online: Highly Stretchable, Biodegradable, and Recyclable Green Electronic Substrates.

Zhu, Yan / Wang, Zhongmin / Chen, Zhenming / Xin, Xiaozhou / Gan, Weijiang / Lai, Huajun / Lin, Cheng

Small (Weinheim an der Bergstrasse, Germany)

2023 Volume 20, Issue 3, Page(s) e2305181

Abstract: As a steady stream of electronic devices being discarded, a vast amount of electronic substrate waste of petroleum-based nondegradable polymers is generated, raising endless concerns about resource depletion and environmental pollution. With coupled ... ...

Abstract	As a steady stream of electronic devices being discarded, a vast amount of electronic substrate waste of petroleum-based nondegradable polymers is generated, raising endless concerns about resource depletion and environmental pollution. With coupled reagent (CR)-grafted artificial marble waste (AMW@CR) as functional fillers, polylactic acid (PLA)-based highly stretchable biodegradable green composite (AMW@CR-SBGC) is prepared, with elongation at break up to more than 250%. The degradation mechanism of AMW@CR-SBGC is deeply revealed. AMW@CR not only contributed to the photodegradation of AMW@CR-SBGC but also significantly promoted the water degradation of AMW@CR-SBGC. More importantly, AMW@CR-SBGC showed great potential as sustainable green electronic substrates and AMW@CR-SBGC-based electronic skin can simulate the perception of human skin to strain signals. The outstanding programmable degradability, recyclability, and reusability of AMW@CR-SBGC enabled its application in transient electronics. As the first demonstration of artificial marble waste in electronic substrates, AMW@CR-SBGC killed three birds with one stone in terms of waste resourcing, e-waste reduction, and saving nonrenewable petroleum resources, opening up vast new opportunities for green electronics applications in areas such as health monitoring, artificial intelligence, and security.
Language	English
Publishing date	2023-09-12
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2168935-0
ISSN	1613-6829 ; 1613-6810
ISSN (online)	1613-6829
ISSN	1613-6810
DOI	10.1002/smll.202305181
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Article ; Online: The Impact of Artificial Marble Wastes on Heat Deflection Temperature, Crystallization, and Impact Properties of Polybutylene Terephthalate.

Feng, Tianliang / Li, Yangzhou / Fang, Liang / Chen, Zhenming

Polymers

2021 Volume 13, Issue 23

Abstract: As artificial marble is abundant and widely used in residential and commercial fields, the resource utilization of artificial marble wastes (AMWs) has become extremely important in order to protect the environment. In this paper, polybutylene ... ...

Abstract	As artificial marble is abundant and widely used in residential and commercial fields, the resource utilization of artificial marble wastes (AMWs) has become extremely important in order to protect the environment. In this paper, polybutylene terephthalate/artificial marble wastes (PBT/AMWs) composites were prepared by melt blending to maximize resource utilization and increase PBT performance. The research results showed that the filling of AMWs was beneficial to the improvement of PBT-related performance. X-ray diffraction analysis results indicated that after filling AMWs into the PBT matrix, the crystal structure of PBT was not changed. Heat deflection temperature (HDT) analysis results indicated that the HDT of PBT composites with 20 wt% AMWs reached 66.68 °C, which was 9.12 °C higher than that of neat PBT. Differential scanning calorimetry analysis results showed that heterogeneous nucleation could be well achieved when the filling content was 15 wt%; impact and scanning electron microscope analysis results showed that due to the partial core-shell structure of the AMWs, the impact strength of PBT was significantly improved after filling. When the filling amount was 20 wt%, the impact strength of the PBT composites reached 23.20 kJ/m
Language	English
Publishing date	2021-12-03
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2527146-5
ISSN	2073-4360 ; 2073-4360
ISSN (online)	2073-4360
ISSN	2073-4360
DOI	10.3390/polym13234242
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Article ; Online: EMI shielding, thermal and antibacterial performances of ecofriendly castor oil–based waterborne polyurethane favored by combining carbon nanotube and cetyltrimethylammonium bromide

Zhan, Yanhu / Liu, Fang / Cai, Yifan / Man, Limin / Li, Yuchao / Meng, Yanyan / Xia, Hesheng / Chen, Zhenming

Industrial Crops & Products. 2023 Oct., v. 202 p.117060-

2023

Abstract: Many ecofriendly and antibacterial polymer-based shielding nanocomposites have been designed to address the increasingly serious issues of electromagnetic interference (EMI) pollution and antibiotic resistance. These composites contain high amounts of ... ...

Abstract	Many ecofriendly and antibacterial polymer-based shielding nanocomposites have been designed to address the increasingly serious issues of electromagnetic interference (EMI) pollution and antibiotic resistance. These composites contain high amounts of conductive and antibacterial material and exhibit an unsurpassed EMI shielding performance and strong antibacterial properties. However, it is extremely challenging to prepare these materials because of the formation of large aggregates coupled with the high viscosity. Herein, carbon nanotubes (CNTs) and an antibacterial surfactant (cetyltrimethylammonium bromide (CTAB)) are mixed with castor oil–based waterborne polyurethane (WPU) via ultrasonic-assisted solution mixing followed by a freeze-drying approach. Owing to the presence of CTAB, CNTs (at a concentration of 24.3 wt%) are evenly dispersed and connected to each other in the WPU matrix. This morphology and intrinsic characteristics of CNTs enable the resultant CNT/WPU composites to exhibit an excellent electrical conductivity (635.8 S/m) and thermal conductivity (0.308 W/(m·K)) as well as an incomparable shielding effectiveness (SE, 88.81 dB). Notably, the specific SE reaches 997.4 dB/cm, which exceeds those of the reported composites. Moreover, the combination of CNTs and CTAB improves the antibacterial activities of the WPU composites. Due to these merits, the resultant composites have great potential for applications in portable and wearable smart electronics. Overall, this study opens a new way toward the manufacture of ecofriendly and multifunctional polymer composites.
Keywords	antibiotic resistance ; antibiotics ; carbon nanotubes ; cetyltrimethylammonium bromide ; electrical conductivity ; electromagnetic interference ; electronics ; freeze drying ; manufacturing ; nanocomposites ; pollution ; polyurethanes ; surfactants ; thermal conductivity ; viscosity ; Carbon nanotube ; Waterborne polyurethane ; Castor oil ; Electromagnetic shielding ; Antibacterial activity
Language	English
Dates of publication	2023-10
Publishing place	Elsevier B.V.
Document type	Article ; Online
ZDB-ID	1132158-1
ISSN	1872-633X ; 0926-6690
ISSN (online)	1872-633X
ISSN	0926-6690
DOI	10.1016/j.indcrop.2023.117060
Database	NAL-Catalogue (AGRICOLA)

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Article: High-performance cotton fabric-based supercapacitors consisting of polypyrrole/Ag/graphene oxide nanocomposite prepared via UV-induced polymerization

Liang, Chunliu / Zang, Limin / Shi, Fangfang / Yang, Chao / Qiu, Jianhui / Liu, Qifan / Chen, Zhenming

Cellulose. 2022 Mar., v. 29, no. 4

2022

Abstract: Cotton fabric (CF) fabricated by natural cellulose fibers has porous structure, abundant hydrophilic hydroxyl groups and good mechanical flexibility, which is a promising substrate for flexible fabric-based supercapacitors. Graphene oxide (GO) nanosheets ...

Abstract	Cotton fabric (CF) fabricated by natural cellulose fibers has porous structure, abundant hydrophilic hydroxyl groups and good mechanical flexibility, which is a promising substrate for flexible fabric-based supercapacitors. Graphene oxide (GO) nanosheets were fixed on the CF by vacuum filtration, and then the pyrrole monomers and silver ions (Ag⁺) were adsorbed to the surface of GO/CF by π-π and electrostatic interactions, respectively. Polypyrrole/silver (PPy/Ag) nanoparticles were generated on the surface of GO/CF via in situ UV-induced polymerization, forming the flexible PPy/Ag/GO/CF electrodes. The electrodes combine three active materials (PPy, Ag and GO), which show good electrochemical performance. The electrode prepared under optimum conditions (UV irradiation time: 120 min; mass loading of GO on the CF: 3 mg cm⁻²) exhibits a high specific capacitance of 1664.0 mF cm⁻². The flexible symmetric quasi-solid-state fabric-based supercapacitor (QFSC) based on the optimum electrode also keeps superior electrochemical performance and excellent mechanical flexibility, which has a great application prospect for wearable energy storage devices.
Keywords	capacitance ; cellulose ; cotton ; cotton fabric ; electrochemical capacitors ; electrochemistry ; electrodes ; energy ; filtration ; graphene oxide ; hydrophilicity ; nanocomposites ; nanosheets ; polymerization ; pyrroles ; silver ; ultraviolet radiation
Language	English
Dates of publication	2022-03
Size	p. 2525-2537.
Publishing place	Springer Netherlands
Document type	Article
ZDB-ID	1496831-9
ISSN	1572-882X ; 0969-0239
ISSN (online)	1572-882X
ISSN	0969-0239
DOI	10.1007/s10570-022-04454-4
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Article: Fabrication of Ag Complexes Based on Multidentate Ligands toward High-Efficient and Facile Electroless Plating

Li, Peng / Liu, Xing / Zhang, Ruxia / Chen, Zhenming / Sun, Di / Huang, Junjun / Gui, Chengmei

ACS sustainable chemistry & engineering. 2022 June 09, v. 10, no. 24

2022

Abstract: In order to avoid damage to the substrate surface and environment pollution by the traditional electroless plating (ECP) pretreatment process, we have designed and fabricated Ag complexes based on multidentate ligands (SAAP) toward high-efficient and ... ...

Abstract	In order to avoid damage to the substrate surface and environment pollution by the traditional electroless plating (ECP) pretreatment process, we have designed and fabricated Ag complexes based on multidentate ligands (SAAP) toward high-efficient and facile ECP. The SAAP solution is a mixture of deionized water, alcohol, 3-aminopropyltriethoxysilane, and AgNO₃. A strong force is established between hydrolyzed silane and Ag particles by means of Ag–N and Ag–O coordinated bonds. More importantly, it could coat on the different substrate surfaces by means of Ag complexes based on the SAAP structure using the rapid film-forming (dip-coating, brush-coating, and in situ film-forming) process which could be attributed to Si–OH and −NH₂ groups on the SAAP surface. As a result, octahedral Ag particles are evenly distributed on the substrate surface with excellent stability and ECP catalytic ability after SAAP film forming. The less stable HCHO is generated and then converted into H–COOH with charge transfer to Cu²⁺ through Ag d-orbitals and vacant orbitals, which results in the reduction of Cu²⁺ to Cu atoms around Ag particles in ECP-Cu solution. To be precise, an easy method to achieve surface metallization of polymers and inorganic materials via coating SAAP solution combined with ECP is achieved successfully. This work is helpful to promote ECP industrial development.
Keywords	alcohols ; green chemistry ; hydrolysis ; industrialization ; ligands ; pollution ; silane
Language	English
Dates of publication	2022-0609
Size	p. 8075-8085.
Publishing place	American Chemical Society
Document type	Article
ISSN	2168-0485
DOI	10.1021/acssuschemeng.2c02241
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Melting Behaviors of Bio-Based Poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) Co Polymers Related to Their Crystal Morphology.

Shi, Ouyang / Li, Peng / Yang, Chao / Jiang, Haitian / Qin, Liyue / Liu, Wentao / Li, Xiaolin / Chen, Zhenming

Polymers

2023 Volume 16, Issue 1

Abstract: In this experiment, a series of poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) (PPFEG) copolymers with different ratios were synthesized using melt polycondensation of dimethylfuran-2,5-dicarboxylate (DMFD), 1,3-propanediol (PDO) and ... ...

Abstract	In this experiment, a series of poly(propylene 2,5-furan dicarboxylate)-b-poly(ethylene glycol) (PPFEG) copolymers with different ratios were synthesized using melt polycondensation of dimethylfuran-2,5-dicarboxylate (DMFD), 1,3-propanediol (PDO) and poly(ethylene glycol) (PEG). The effect of PEG content on the crystallization behavior of the poly(propylene 2,5-furan dicarboxylate) (PPF) copolymers was investigated. For PPF, the nucleation density of the
Language	English
Publishing date	2023-12-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2527146-5
ISSN	2073-4360 ; 2073-4360
ISSN (online)	2073-4360
ISSN	2073-4360
DOI	10.3390/polym16010097
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