LANGMUIR
·
2019
·
IF 3.683
Ran Kou,Tao Wang,Zhen Chen,Renwei Zhu,Hongtao Cai,Haoming Pang,Shouhu Xuan,Guangming Liu
The utilization of the full spectrum of sunlight from ultraviolet to infrared to cooperatively control the properties of hydrogels is the key to developing efficient sunlight-responsive hydrogels, but there are significant challenges. The photoresponsive hydrogel developed here formed by azobenzene-containing polyzwitterionic chains possesses capabilities for simultaneously utilizing light from the ultraviolet to the infrared to cooperatively facilitate the gel-to-sol transitions. The ultraviolet and visible light can be converted into mechanical energy simultaneously to synergistically power the dynamic wagging of azobenzene groups, while the infrared light can be converted into kinetic energy of the zwitterionic groups to promote the wagging of the azobenzene groups. Cooperative action between the major components of sunlight can be applied to control a range of important properties of the hydrogel including wettability, adhesion, molecular release, self-healing, and mineralization. The work presented here demonstrates a novel strategy for harvesting all the major components of sunlight to control the properties of photoresponsive materials.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
ELECTROPHORESIS
·
2018
·Vol. 40
·期 4
·582-586
·
IF 2.569
Danjing Wan,Yu Han,Farui Li,Hua Mao,Gang Chen
Far infrared radiation was employed in the rapid removal of the solvents in the extracts of Plumula Nelumbinis and standard mixture solutions to prevent the interference of the solvent peaks toward their capillary electrophoretic measurements. The sample solutions in small vials were exposed to far infrared ray at 60°C for 3 min to remove solvent. The dried samples in the vials were each dissolved into running buffer with the aid of ultrasonication for capillary electrophoresis analysis. The far infrared-assisted solvent removal approach was sucessfully applied in the rapid determination of neferine, liensinine, isoliensinine, rutin and hyperoside in Plumula Nelumbinis . The five analytes could be well separated within 12 min in a 40 cm long fused silica capillary at a separation voltage of 12 kV in a 50 mM borate buffer (pH 9.2). The results indicated that the interferences of the solvent peaks in the capillary electropherograms of the herbal drugs were eliminated completely.
研究领域:
分析化学
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中药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Innovative Food Science & Emerging Technologies
·
2023
·
IF 6.6
Yejun Zhong,Yaqi Zhang,Ziyi Zhu,Yiheng Wang,Zicong Zeng,Chengmei Liu
The peroxidase in black rice was inactivated by superheated steam (SS), far infrared radiation (FIR), and microwave treatment (Mw) respectively, and then their effects on the physicochemical and nutritional properties of black rice were compared. Results showed that SS, FIR, and Mw completely inactivated peroxidase with minimum time of 16 min, 8 min, 480 s, respectively. FIR and Mw significantly decreased all pasting viscosities and gelatinization enthalpy (ΔH), while SS increased most pasting viscosities and showed almost no influence on ΔH. Besides, black rice stabilized by SS rather than FIR and Mw showed similar cooking and sensory quality and microscopic structure to that of raw black rice. Furthermore, SS was more favorable to retain the phenolics, flavonoids , anthocyanins and antioxidant capacity than FIR and Mw. These results suggested that SS was most suitable to improve the shelf life of black rice with minimal damages to its physicochemical and nutritional properties.
研究领域:
食品科学
·
营养学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2023
·
IF 5
Jiashuo Hu,Shuangye Yang,Zihao Chen,Yiping Chen,Jie Wei
In this work, we developed inverse opal photonic crystals (IOPCs) for real-time identifiable labels by tuning the structure color and chemical color under ultraviolet (UV) light and near-infrared (NIR) light. We prepared IOPCs by etching a silica photonic crystal template in thermosensitive hydrogel added to 2,2-diphenyl-2H-naphtho [1,2-b] pyran-6-carbaldehyde (NP). In this way, the transparent hydrogel turned red under UV light due to the photochromic naphthopyran. Meanwhile, the green structure color of IOPCs was superimposed with the red chemical color of the hydrogel, so that IOPCs with naphthopyran (IOPCs/NP) appeared yellow. When irradiated by NIR light, the structure color of IOPCs turned blue from green due to the volume contraction of the thermosensitive hydrogel. When irradiated by UV and NIR light simultaneously, the blue structure color of IOPCs was superimposed with the red chemical color of the hydrogel, and the IOPCs/NP would finally appear purple. Thus, we realized the real-time controllable IOPCs by two light sources. Based on this, we designed a series of identifiable labels with multiple colors under UV and NIR light, which expanded the application of information anticounterfeiting and identification.
研究领域:
材料科学
·
光学
·
信息学
✓ 已验证
产品关联
DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Youming Zhu,Xudong Zheng,Guomeng Li,Xi Zhang,Lin Guo,Jinfeng Mei,Zhongyu Li
The development of smart responsive materials is crucial for not only achieving high-performance adsorption of rare earth elements but also enabling green regeneration. Herein, we report the fabrication of ultraviolet (UV)-light responsive imprinted chitosan-based aerogel (UV-IA) and near-infrared (NIR)-light responsive imprinted chitosan-based aerogel (NIR-IA) for the selective adsorption and eco-friendly desorption of Dy(III). Both light-responsive imprinted chitosan-based aerogels were prepared by low-temperature thermally induced phase separation (LT-TIPs), and NIR-IA was prepared by adding the photo-thermal conversion material croconaine. The chitosan aerogels with nanofiber network pore structure were prepared by LT-TIPs. The adsorption capacities of 10 mg of UV-IA and NIR-IA were 76.32 mg g -1 and 76.11 mg g -1 under the condition of pH 5.0 and room temperature, respectively. The selective adsorption effect of UV-IA and NIR-IA on dysprosium ions was obviously better than other competitive ions, and their adsorption separation constants can reach 2408.45 mL g -1 and 2623.29 mL g -1 , respectively. The results showed that cinnamic acid in UV-IA changed to cis structure under UV irradiation, while croconaine in NIR-IA decomposed the chitosan/cinnamic acid conjugate by applying heat to it under NIR irradiation. These changes caused the imprint sizes of UV-IA and NIR-IA to be changed, realizing the green desorption of Dy(III). The best desorption rate of 88.64% was achieved by UV-IA. These materials provide a promising approach for the green and economical separation and recovery of Dy(III) from secondary resources.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2021
·
IF 7.664
Tianjiao Wang,Jun Zhao,Chuanxin Weng,Tong Wang,Yayun Liu,Zhipeng Han,Zhong Zhang
In this work, a simple method is proposed for the preparation of bidirectionally reversible light-responsive shape memory polyurethane (SMPU) bilayer. This SMPU bilayer consists of a 4,4-azodibenzoic acid (Azoa) containing SMPU (SMPU-Azoa) layer and a carbon black (CB) containing SMPU (SMPU-CB) layer. A reversible deformation is realized when the two sides are exposed to ultraviolet (UV) and infrared (IR) lights, respectively. The working mechanism is the trans – cis isomerization of SMPU-Azoa layer and the photo-thermal effect of SMPU-CB layer. The effect of the filler content and the thickness ratio of bilayer is systematically studied. The reversible bending angle of the SMPU bilayer can exceed 30° in 16 s for one cycle when the Azoa and CB contents are 5 wt% and 0.5 wt%, respectively, and the thickness ratio of SMPU-Azoa layer to SMPU-CB layer is 1/1.3. Furthermore, a micro-robot based on such LSMP bilayer is demonstrated.
研究领域:
材料科学
·
高分子科学
·
光电技术
·
机器人技术
✓ 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）