ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Xue Yu,Yue Liu,Wei Luo,Xiaodan Zeng,Leqin Cheng,Yuewei Zhang
In recent years, with the increasing demand for building energy efficiency and comfort in daily life, electrochromic smart windows have attracted widespread attention. Electrochromic smart windows utilize electrochromic material (ECM) technology to change the color or transparency of the window under the action of an electric field, thereby regulating the light and heat entering the room and achieving energy-saving effects. A bistable electrochromic material is a material that can switch between two color states and maintain one of these states without an external electric field. Although ECMs with bistable properties can significantly reduce energy consumption, current research on their application in smart windows is limited. Therefore, three conjugated extended viologen polymers with thiophene derivative bridges, PDV-MMA, PBV-MMA, and PTV-MMA, were designed and synthesized, and electrochromic devices (ECDs) were prepared. The introduction of thiophene derivatives not only prolongs the effective conjugated chain length of viologen, but also extends the electrochromic (EC) response to the near-infrared (NIR) region. In addition, by inserting different thiophene derivatives to separate the two pyridinium moieties, viologen polymers emit strong fluorescence that can be quenched by applying a negative voltage. The electrochromic device based on PDV-MMA material has fast response time (1.8 s), low turn-on voltage (−0.9 V), high color contrast (73.7%), high coloring efficiency (550 cm2/C), and cycling stability (3300 cycles). In addition, ECD based on PDV-MMA exhibits bistable characteristics, with only a 10% transmittance decay within 221 min, displaying clear patterns even after 20 h of power outage, and significantly reducing indoor temperature (7.0 °C) in simulated indoor environments. These characteristics make the application of electrochromic smart windows highly attractive in energy-efficient buildings. The study also demonstrated an intelligent window system driven by a solar cell (SC), further validating its feasibility in practical applications.
研究领域:
材料科学
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能源技术
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建筑设计
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产品关联
DOI
PubMed
高影响因子
Journal of Magnesium and Alloys
·
2024
·
IF 15.8
Xi Liu,Jinglong Pan,You Lv,Xu Wang,Xiaoze Ma,Xinxin Zhang,Guangyi Cai,Zehua Dong
Magnesium implants have received widespread attention in orthopaedic surgery. However, the mechanical degradation and concurrent inflammation caused by the rapid corrosion of Mg limits their applications. In this study, a kind of unique core-shell heterojunction CuS@PPy nanostructures was synthesized and then incorporated in polycaprolactone (PCL) to construct an intelligent coating (CuS@PPy/PCL) on micro-arc-oxidized Mg implants. The PCL-based coating can realize near-infrared (NIR)-driven antibacterial and controllable Mg dissolution according to different bone healing stages. At the beginning of bone remodelling, the coating exhibits promising antibacterial properties with 99.67 % and 99.17 % efficacy against S. aureus and E. coli , respectively, thanks to the singlet oxygen ( 1 O 2 ) and alkoxyl radicals (RO·) generated by the photodynamic effect of CuS@PPy heterojunction under low-power NIR light (1.5 W/cm 2 ). In the bone reparative stage, the PCL-based coating can maintain high corrosion resistance to meet the mechanical requirements of Mg implants in human body fluid. However, after the complete rehabilitation of bones, through a high-power (2 W/cm 2 ) NIR light, the PCL-based coating changed from an elastic to a viscous flow state (44.7 °C) under the photothermal effects of CuS@PPy, leading to quick degradation of the PCL-based coating and following accelerating dissolution of the Mg implant (avoiding secondary surgery). Hopefully, this NIR-responsive coating may provide an innovative method for the antibacterial and controllable dissolution of Mg implants.
研究领域:
生物医学工程
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材料科学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2019
·Vol. 7
·期 17
·4970-4980
·
IF 6.641
Xiaomin He,Yan Sun,Jiahui Wu,Yang Wang,Feng Chen,Ping Fan,Mingqiang Zhong,Shengwei Xiao,Dong Zhang,Jintao Yang,Jie Zheng
Developing new smart hydrogel systems and new fabrication methods is critical for fundamental research and industrial applications, particularly in the intelligent human–machine field, but still faces great challenges. In this work, we present bilayer poly(N-isopropylacrylamide)/graphene oxide (polyNIPAM/GO) hydrogels with dual thermo- and near-infrared (NIR)-responsive properties using a simple, in situ polymerization-centrifugation method. By tuning the GO concentration and centrifugation speed, a transparent polyNIPAM layer and a dark-brown GO-rich layer are formed, where each layer displays distinct network structures and swelling behavior. Due to the asymmetric double-layer structure, the polyNIPAM/GO bilayer hydrogels enable one to realize fast, controllable, bidirectional bending under thermal or NIR stimulation within 1 min, and the bending orientation and degree can be reversibly, repeatedly, and precisely controlled by the temperature- or NIR-induced cooperative swelling–shrinking properties of both layers. Based on the reversible, bi-directional bending nature of polyNIPAM/GO hydrogels, we further design two proof-of-concept hydrogel actuators to highlight the advantages of this hydrogel system: one acts as a wiggler to mimic robot arms to move objects, while the other serves as an electric switch to turn on/off a light. In addition, our polymerization-centrifugation method can also be used to prepare polyNIPAM/SiO2 bilayer hydrogels, demonstrating its general applicability to other polyNIPAM–nanoparticle hydrogels with a bilayer structure. This work provides both a new fabrication method and hybrid hydrogel systems for the development of smart, programmable, and versatile hydrogel-based actuators.
研究领域:
材料科学
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智能材料
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生物医学工程
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2017
·
IF 2.986
Song Chen,Xinxin Du,Tianlong Wang,Lan Jia,Di Huang,Weiyi Chen
Gelatin/hydroxyapatite (HAp) composites are of great interest in the biomedical applications because of their excellent biocompatibility, biodegradability, and bioactivity. However, little attention has been paid to synthesis of the gelatin/HAp composites with photo-thermal property. In this study, near-infrared (NIR) responsive gold nanorod (GNR) doped gelatin/HAp composite microspheres were synthesized via an emulsion technique and their microstructure and NIR-responsive photo-thermal property were investigated. SEM observations showed that the composite microspheres were spherical and their diameter was ranged from 10 to 50 µm. XRD patterns showed that the composite microspheres presented the typical diffraction peaks of HAp and GNR components. FT-IR spectra showed that P-O-P bonds, -COOH groups and –NH 2 groups were involved in the composite microspheres. Under an 808-nm NIR light irradiation, the temperature of the suspension of composite microspheres was increased from 37 °C to 42 °C due to the presence of GNR component, indicating that the composite microspheres possessed NIR-responsive photo-thermal property.
研究领域:
生物材料学
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医学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Cheng Lin,Lianfu Jiang,Dawei Hu,Yiqun Li,Bo Cai,Jing Li,Yu Gu,Luyang Wang,Kan Zhang,Haibo Zeng
Although research progress on mimicking natural photosynthesis for solar-to-fuel conversion has been continuously made, exploring broadband spectral-responsive materials with suitable band positions and high stability still remains a huge challenge. Herein, we, for the first time, report novel AsP nanosheets (NSs) with P-type semiconducting property and enough negative conduction band, which can work as a stable near-infrared (NIR) region-responsive electron donor for water reductive hydrogen (H2) production. To mimic photosystem I, Au nanorods (NRs) act as electron transport media, which are also responsible for the enhanced electric field nearby, and 1T-MoS2 NSs as a hydrogen evolution catalyst are orderly coupled with AsP NSs with a sheet-rod-sheet structure by electrostatic self-assembly. The cascaded band level alignment enables unidirectional electron flow from AsP to Au and then to MoS2, and the optimum H2 production rate of the MoS2-Au-AsP ternary heterojunction reaches 125.52 μmol g–1 h–1 with good stability even after being stored for several months under light irradiation with a wavelength longer than 700 nm. This work provides a platform that is energetically tailored to drive a solar broad-spectrum fuel generation, including CO2 reduction and N2 fixation.
研究领域:
材料科学
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能源化学
·
光催化
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产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2018
·Vol. 10
·期 45
·21106-21115
·
IF 7.233
Qi-Qi Yang,Rui-Tong Liu,Chao Huang,Yi-Fan Huang,Lin-Feng Gao,Bing Sun,Zhi-Peng Huang,Lei Zhang,Chen-Xia Hu,Ze-Qi Zhang,Chun-Lin Sun,Qiang Wang,Yu-Long Tang,Hao-Li Zhang
The rediscovery of black phosphorus (BP) has expanded the 2D family into Group 15 (Nitrogen Group) elements, among which bismuthene is the latest member with extraordinary opto-electronic, catalytic and biocompatible properties and potential as a 2D topological insulator. However, bulk Bi is not easily mechanically exfoliated as its counterpart of BP. Thus, to date, the reports on 2D Bi fabrication are rare, and investigations on its nonlinear optical properties are even less. Herein, we rationally designed a new strategy combining acid-interaction and liquid exfoliation to successfully transform metal bulk Bi into few-layer semiconductor, which resulted in unseen opto-electronic properties, such as tunable nonlinear responses all the way to the near-infrared (NIR) region. This band is critical for telecommunication and military purposes, but currently, functioning materials are extremely scarce. The origin of this strong saturable absorption was thoroughly explored through time-resolved spectroscopy spanning from the fs to μs timescale, which indicated ultrafast fs to ps carrier dynamics in the early stage and long exciton bleaching recovery up to μs. As a proof-of-concept application, the as-prepared 2D Bi was employed as a saturable absorber to mode-lock a Tm-doped fiber laser and successfully realized a 2 μm NIR-wavelength output. This study not only offers an effective and scalable method to fabricate the new 2D family member bismuthene with extraordinary stability, but also explores its strong and broad nonlinear responses extending into the NIR region and fundamental photoinduced dynamics, which demonstrate the full potential of 2D Bi for application in opto-electronic devices and nonlinear optics.
研究领域:
材料科学
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光学工程
·
物理学
✓ 已验证
DOI
PubMed
高影响因子
DALTON TRANSACTIONS
·
2024
·
IF 3.5
Chiyin Zhang,Panping Yang,Jingguo Li,Shaokui Cao,Yingliang Liu,Jun Shi
The design of multifunctional nanocarriers with enhanced photothermal efficiency is of great significance for the photothermal therapy of cancer. In this study, hollow CuS@gold nanorods/polydopamine (HCuS@AuNRs/PDA) nanohybrids with synergistically enhanced photothermal efficiency were prepared by electrostatic self-assembly method. The high photothermal conversion efficiency of HCuS@AuNRs (55.88%) is attributed to the interfacial electron transfer between CuS and AuNRs, as well as the increase in free charge carrier concentration. The excellent adhesion performance and strong negative charge of PDA ensure a high doxorubicin hydrochloride (DOX) loading efficiency of 96.08% for HCuS@AuNRs/PDA. In addition, HCuS@AuNRs/PDA reveals outstanding NIR/pH dual-responsive drug release properties owing to the weakened interaction between PDA and DOX in acidic media and the distinct NIR responsiveness of HCuS@AuNRs. In vitro cell viability results confirm that HCuS@AuNRs/PDA could efficiently kill tumor cells under the dual effect of acidic media and NIR laser. This study presents a novel nanocarrier with synergistically enhanced NIR photothermal responsiveness and high drug loading capacity, which provides a versatile platform in intelligent drug release and photothermal therapy.
研究领域:
生物医学工程
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肿瘤学
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纳米医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Yuanyuan Ren,Wenlong Yang,Zhengzheng Tan,Liuyang Zhang,Rui Pan
Most sensors use acidic eluent to realize the desorption of Pb 2+ , which inevitably causes damage to the sensing membrane. A near-infrared responsive hydrogel sensing membrane (PNIPAm/PVA/GO) was prepared by free radical polymerization, which was modified on U-shaped optical fiber sensors for the selective determination of Pb 2+ . Graphene oxide (GO) is the functional recognition monomer, and the double-crosslinked network of polyvinyl alcohol (PVA) and Poly(N-isopropylacrylamide) (PNIPAm) acts as the mechanical stress skeleton while increasing the Pb 2+ adsorption sites and inhibiting the agglomeration of GO. The "self-healing" of the sensing membrane achieves non-destructive desorption without causing secondary pollution to the environment by utilizing the high photothermal conversion efficiency of GO and the temperature response characteristics of PNIPAm. The sensor exhibited a sensitivity of 0.2191 nm/ppb in the 0–100 ppb range; the limit of detection was calculated to be 0.27 ppb. The experimental results show that the sensor has good reproducibility, stability, and selectivity. Further, the proposed signal analysis method based on convolutional neural networks realizes the measurement of Pb 2+ at different pH values. This method can effectively solve the problem of increased selectivity while leading to desorption difficulties and provides a new idea for realizing green, clean, and efficient detection of Pb 2+ .
研究领域:
环境科学
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材料科学
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光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Jianguo Liu,Wenrui Huang,Gan Cui,Xiao Xing,Jing Liu
Superhydrophobic coatings with special wettable surfaces hold significant promise for applications in self-cleaning, anti-corrosion, and other industrial domains. However, their practical implementation is hindered by fragile mechanical durability and poor chemical stability. This study addresses these limitations by developing near-infrared (NIR)-responsive self-healing superhydrophobic coatings using a one-step spraying method. Epoxy resin serves as the shape memory matrix, while DTMS@PDA@SiO 2 @CNTs particles function as photothermal conversion agents and hydrophobic components. The optimal synthesis parameters—reaction pH of 8.5, a carbon nanotube (CNTs) to TEOS ratio of 1:3, and a dopamine (DA) to CNTs ratio of 1:1—were determined to maximize photothermal conversion and coating performance. The coatings demonstrated exceptional hydrophobicity, with a water contact angle of 167° and a scratch repair efficiency of up to 82 % under NIR irradiation. Even after structural damage, their superhydrophobic properties could be restored by activating the shape memory effect through photothermal heating. The coatings exhibited superior stability against mechanical wear, maintaining hydrophobicity after sandpaper abrasion and tape peeling. They also showed excellent resistance to chemical corrosion, effectively preventing ion penetration and maintaining performance in acidic, alkaline, and saline environments. These findings highlight the potential of NIR-responsive self-healing superhydrophobic coatings to overcome existing durability and stability challenges, extending their applicability in harsh industrial and environmental conditions.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Hao Jiang,Xiaotong Chen,Zhiqiang Fang,Yangkai Xiong,Haomin Wang,Xuewei Tang,Jiahao Ren,Panpan Tang,Jipeng Li,Guoqing Wang,Zheng Li
Slippery liquid-infused porous surfaces (SLIPSs) have great potential to replace traditional antifouling coatings due to their efficient, green, and broad-spectrum antifouling performance. However, the lubricant dissipation problem of SLIPS severely restricts its further development and application, and the robust SLIPS continues to be extremely challenging. Here, a composite phase-change lubricant layer consisting of paraffin, silicone oil, and MXene is designed to readily construct a stable and NIR-responsive self-healing phase-change solid slippery surface (PCSSS). Collective results showed that PCSSS could rapidly achieve phase-change transformation and complete self-healing under NIR irradiation and keep stable after high-speed water flushing, centrifugation, and ultrasonic treatment. The antifouling performance of PCSSS evaluated by protein, bacteria, and algae antiadhesion tests demonstrated the adhesion inhibition rate was as high as 99.99%. Moreover, the EIS and potentiodynamic polarization experiments indicated that PCSSS had stable and exceptional corrosion resistance (|Z|0.01Hz = 3.87 × 108 Ω·cm2) and could effectively inhibit microbiologically influenced corrosion. The 90 day actual marine test reveals that PCSSS has remarkable antifouling performance. Therefore, PCSSS presents a novel, facile, and effective strategy to construct a slippery surface with the prospect of facilitating its application in marine antifouling and corrosion protection.
研究领域:
材料科学
·
生物医学工程
·
海洋科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Zepeng Liang,Zelin Sang,Yumei Li,Zhenhua Chen,Xifan Mei,Xiuli Ren
Design of tough and functional hydrogel based on carbohydrate polymers is always attracting. Injectable hydrogel based on polyvinyl alcohol (PVA) and sodium alginate (Alg) have great potential for wound repair. However, simple hydrogel lacks functionality, such as antibacterial, which limits its application. Herein, we proposed a strategy of using Ag@MXene nanozyme to functionalize hydrogel and construct a near-infrared laser (NIR) responsive, reactive oxygen species (ROS) generating, and antibacterial platform for wound repair. Epigallocatechin gallate (EGCG) and Ag cluster modified Ti 3 C 2 (E-Ag@Ti 3 C 2 ) was prepared to enhance the performance of injectable PVA-alginate hydrogel (E-Ag@Ti 3 C 2 @H). The functionalized hydrogel presents porous structures (67 % porosity percentage) and excellent compressive and tensile properties (elongation up to 157 %). Under NIR laser irradiation, E-Ag@Ti 3 C 2 @H showed photothermal conversion efficiency and ROS generation ability. The inhibition rate for Methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli ( E. coli ) can reach to 91.2 % and 90.3 %, respectively. Molecular biology experiments showed that the composite hydrogel could promote angiogenesis and wound healing by upregulating the expression of anti-inflammatory factors. The obtained injectable E-Ag@Ti 3 C 2 @H hydrogel is potential in accelerating diabetic wound healing.
研究领域:
生物材料学
·
医学工程
·
纳米医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jiayao Wang,Jingguo Li,Shaokui Cao,Yingliang Liu,Jun Shi
In recent years, the remotely multi-responsive chitosan (CS) hydrogel has been garnering extensive attention owing to its remarkable potential in biomedical applications. Meanwhile, it presents a wide range of uses in the realm of controlled drug delivery and photothermal chemical combination therapy. In this paper, the CS/β-glycerophosphate disodium salt (β-GP) physical crosslinked network was employed as the framework to encapsulate near-infrared (NIR) responsive hollow copper sulfide (CuS)/polydopamine (PDA) nanoparticles, and the NIR/pH synergistic responsive CS/CuS/PDA hydrogel was fabricated. The negatively charged β-GP, along with the hollow CuS/PDA nanoparticles, played a key role in promoting the creation of abundant electronegative cavities. As a result, the hybrid hydrogel achieved an impressively high DOX loading rate, reaching up to 95.5%. The CS/CuS/PDA hydrogel exhibits excellent pH responsiveness, which could be attributed to the disintegration of the CS/β-GP network under acidic buffer solution. In addition, hollow CuS/PDA nanoparticles embedded in the hydrogel endow the hydrogel with excellent NIR photothermal responsiveness, which significantly promotes the release of DOX. Consequently, the CS/CuS/PDA hydrogel reveals excellent synergistically enhanced NIR, pH, and thermal triple-responsiveness, indicating its tremendous promise in the field of controlled drug release.
研究领域:
生物医学工程
·
材料科学
·
药学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）