ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Xinyi Liu,Shaoyu Wang,Yang Liu,Ye Yao,Xiaohan Zhu,Yaqi Hu,Tong Wan,Bowen Cheng
Developing biodegradable and recyclable pressure sensors is quite important to broaden their application fields and reduce adverse environmental impact. However, the relevant research in this area is still limited. In this work, a biodegradable and recyclable pressure sensor was proposed by employing biodegradable polyurethanes. The poly(ether carbonate) diol (PEC) with 40% biodegradable groups (carbonate groups) was polymerized with isophorone diisocyanate and butane-1,4-diol to produce a biodegradable PEC-based polyurethane (BPPU) (Mn = 5.89 × 104 g/mol). Structural analysis of the products was conducted by 1H NMR and FTIR spectroscopy. The DSC results indicated that the glass-transition temperature of BPPU was −24 °C. In particular, the obtained BPPU showed an excellent biodegradation rate in the soil compared to previously reported polyurethanes, with 72.88% degradation in 103 days. BPPU working as the substrate of a pressure sensor presented high sensitivity (S = 41.29 kPa–1), a wide response range (0.62–62.5 kPa), and good durability (6250 cycles). The sensor displayed not only the capability to detect signals of human breathing, joint movements, and writing but also the recyclability of silver interdigital electrodes. At present, the synthesized BPPU shows broad application prospects in flexible sensors with promising low-temperature resistance, biodegradability, and flexibility.
研究领域:
材料科学
·
环境科学
·
生物医学工程
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产品关联
DOI
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2016
·Vol. 32
·期 11
·2753-2760
·
IF 0.844
BIAN Peng-Cheng,ZHANG Da-Peng,GANG Hong-Ze,LIU Jin-Feng,MU Bo-Zhong,YANG Shi-Zhong
Bio-based surfactants have attracted increasing attention because they are made from renewable resources and have excellent surface/interfacial properties. In this study we prepared a novel bio-based branched alkylbenzene sulfonate surfactant by a four-step route using renewable oleic
acids as starting materials. We evaluated the surface behavior, wettability, and biodegradability of our surfactant. The surfactant, 4-(1-heptadecyl) benzene sodium sulfonate (9ΦC17S), was synthesized using a facile four-step route involving alkylation, decarboxylation, sulfonation and
neutralization, respectively. The chemical structure of 4-(1-heptadecyl) benzene sodium sulfonate was confirmed by infrared (IR) spectroscopy, electrospray ionization high resolution mass spectrometry (ESI HRMS) and 1H nuclear magnetic resonance (1H NMR) spectroscopy.
The surfactant demonstrated an excellent surface tension of 32.54 mN·m-1 at the critical micelle concentration (CMC) of 317.5 mg·L-1 and outstanding interfacial tension of ~10-2 mN·m-1 at 8.36×104 mg·L-1
with 8.48×104 mg·L-1 Na2CO3. The surfactant also showed good biodegradability with an ultimate biodegradation score of 2.99. The surfactant had good wettability with an air/water/solid contact angle (
average)
of 63.08° for a 0.500 g·L-1 9φC17S solution. This novel bio-based branched surfactant contributes to the structural diversity of biobased surfactants from renewable feedstock.
研究领域:
化学工程
·
环境科学
·
材料科学
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DOI
高影响因子
Nano Energy
·
2021
·
IF 17.881
Tao Wang,Shuyao Li,Xingling Tao,Qi Yan,Xingling Wang,Yao Chen,Fengjiao Huang,Hexing Li,Xiangyu Chen,Zhenfeng Bian
The biodegradable triboelectric nanogenerators (TENGs) for monitoring human physiological signals have attracted immensely attention in recent years. In this work, a water-soluble TENG (WS-TENG) is manufactured by using biodegradable recycled papers and water-soluble graphite electrode . The cellulose nanocrystal (CNC) in the papers is extracted and further mixed with methylcellulose (MC) to form a CNC/MC film, which can serve as the positive electrification material and form a TENG device with the common MC film as the negative electrification material. This low-cost, light weight and biodegradable WS-TENG that can be directly washed away by water is developed as a bandage sensor. Unlike traditional gauze sensors, the water-insoluble parts of our cellulose-based can be easily separated from water for reuse. The variation of the output voltage of WS-TENG between 0 V and 2 V can accurately distinguish various respiratory states, which is enough to be used as a real-time physiological signal monitoring sensor. This fully water-soluble device can serve as an advanced medical sensor and expand the application of TENG in health care monitoring field.
研究领域:
生物医学工程
·
材料科学
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产品关联
DOI
高影响因子
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
·
2020
·
IF 2.69
Qian Ji,Hao Zhang,Xihe Zhang,Qiaoqiao Ma,Liping Teng,Lipeng Qiu
Hydrogel scaffolds are explored as efficient methods to repair damaged organs or tissues. In this study, we developed a hybrid hydrogel system based on collagen (Col) and PEG-derived polymer (PEGF) for biomedical scaffold. The Col-PEGF hybrid hydrogel, in which different materials were combined and sequential interpenetrating networks were built, achieved significantly enhanced mechanical strength and viscoelasticity compared with the corresponding Col hydrogel or PEGF hydrogel. Degradation test indicated that Col enabled the hybrid hydrogel to be broken down via enzymatic degradation while PEGF contributed to the anti-degradation of the hydrogel. This balanced biodegradability of Col-PEGF hydrogel would be advantageous to the application for tissue engineering and regenerative medicine. Moreover, the Col-PEGF hybrid hydrogel with micron-sized pores and variable moisture performed good biocompatibility to NIH-3T3 cells, and supplied a favorable environment for cell growth and proliferation. Therefore, the Col-PEGF hydrogel will provide a promising biomedical scaffold for the therapy of tissue defects.
研究领域:
生物材料
·
生物医学工程
·
组织工程
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产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Yuqian Guo,Xianhui An,Xueren Qian
It is challenging and attractive to prepare the bio-based polymers with comparable or even improved properties in terms of sustainability and economics. Here, the cellulose-based polyurethane films with ethyl cellulose as a soft segment to fully substitute polyether polyols were prepared in a facile and environmentally friendly preparation process. Moreover, the selected sample exhibited high transparency (transmittance of 84.4%), good shape memory behavior (shape fixation ratio of 95% and shape recovery ratio of 94.4%), tensile strength (9.2 MPa), good biodegradability (degradation half-life ( t 1/2 ) of 38 d) and excellent reprocessability (recycled 10 times). Especially, the cellulose-based polyurethane films performed the role of adhesive bonding with the different substrates. In addition, by adding Al 2 O 3 nanoparticles , the EC-PU composites not only exhibited high transparency and excellent adhesive strength but also improved thermal conductivity. At a low filler loading (2.5 wt%) of Al 2 O 3 nanoparticles (30 nm), the Al 2 O 3 -EC-PU4 film not only maintained higher transmittance of 73.6% but also had excellent lap-shear strength of 3.04 MPa. Moreover, both the thermal conductivity and thermal diffusivity of Al 2 O 3 -EC-PU4 film reached as high as 0.92 W/mK and 14.81 mm 2 /s, which are 146% and 1048% higher than the blank sample. Therefore, it has great potential in developing high performance bio-based plastics and transparent electronic fields.
研究领域:
材料科学
·
环境科学
·
生物工程
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产品关联
DOI
高影响因子
COLLOID AND POLYMER SCIENCE
·
2025
·
IF 2.3
Mao Wenqiang,Li Jiapeng,Wang Dongdong,Pan Yanxiong,Ji Xiangling,Jiang Wei
Hot melt adhesives are utilized in a variety of industries because to their solvent-free, strong adhesion and rapid curing. With the increasing awareness of environmental protection, biodegradable hot melt adhesives have received attention. Herein, chlorinated poly(propylene carbonate) (CPPC)/poly(butylene succinate) (PBS)/poly(lactic acid) (PLA) blends were prepared using diphenylmethane diisocyanate (MDI) as reactive compatibilizer. Thermogravimetric analysis (TGA) demonstrated that adding PLA improved the thermal stability of the blends. From rheological tests, the melt elasticity and viscosity of the blends at 170 ℃ were enhanced after PLA was added. The tensile strength of CPPC/PBS/PLA/MDI blends reached 47.9 MPa as 32 wt% of PLA was added. When PLA content was 16 wt%, the blends exhibited high adhesion strength (13.97 MPa), which was much higher than that of common commercial products. In addition, the enzymatic degradation tests showed that the blends had biodegradability. Therefore, CPPC/PBS/PLA/MDI blends have the potential to be used in biodegradable hot melt adhesives. Graphical CPPC/PBS/PLA/MDI blends with different PLA contents were prepared by in situ compatibilization. The biodegradable CPPC/PBS/PLA/MDI blends had good mechanical and adhesive properties.
研究领域:
材料科学
·
高分子科学
·
胶粘剂技术
·
环境科学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2023
·Vol. 11
·期 18
·4065-4075
·
IF 7
Xutao Guo,Shuxian Wang,Shubin Wang,Jun Wang,Feng Jiang,Yuhan Liu,Catherine J. Storey,Wolfgang Theis,Zhouguang Lu,Kai Li,Leigh T. Canham,Zhenghe Xu
Photothermal nanomaterials have shown great potential for photothermal therapy. In this study, we developed a simple green method of magnesiothermic co-reduction for the synthesis of mesoporous, magnetic and biodegradable iron silicide nanoparticles (FeSi NPs) as applied to photothermal therapy (PTT). Starting from biogenic tabasheer extracted from bamboo and Fe2O3, the resultant FeSi NPs with a much lower band gap exhibited excellent optical absorption with a photothermal conversion efficiency of 76.2%, indicating a good photothermal performance. The weight extinction coefficient was measured to be 13.3 L g−1 cm−1 at 1064 nm (second near-infrared window, NIR-II), which surpassed the performance of other competitive Si-based and Fe-based photothermal agents. Results of the cell viability assay showed that cells could be killed by NIR-II laser irradiation with the synthesized FeSi NPs. In vivo results on mice showed clearly an efficient suppression of tumour growth by photothermal treatment with FeSi NPs. FeSi NPs were found to be biodegradable in simulated body fluids. The results from our work indicate that FeSi NPs are a new class of promising photothermal agents (PTAs) for application in cancer therapy.
研究领域:
材料科学
·
纳米技术
·
癌症治疗
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
Russian Journal of Physical Chemistry A
·
2023
·Vol. 97
·期 6
·1263-1271
·
IF 0.7
Yang Hanhan,Wu Jianmeng,Li Zhenxing,Hao Xinying,Li Hua
Abstract A new biodegradable cellulose derivative-non-isocyanate polyurethane (NIPU) was prepared, and densities, viscosities, and surface tension of NIPU were measured by density bottle method, capillary viscometer and BZY-2 type full automatic surface tension meter respectively from 298.15 to 318.15 K. The results showed that densities, viscosities and surface tension were related to temperature and concentration. The viscosity and surface tension decreased with the increase in temperature at the same concentration; at the same temperature, viscosity and surface tension were positively correlated with concentration. And the experimental data were correlated by the correlation equations of viscosity and temperature, they showed a good agreement with the fitting results of the related equations.
研究领域:
材料科学
·
聚合物化学
·
物理化学
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DOI
高影响因子
POLYMER
·
2025
·
IF 4.5
Yanjun Sun,Haihao He,Xuehua Jia,Meiqiong Chen,Ning Chen,Yinghong Chen
In this study, the biaxially stretching and reactive blending strategies were combined to fabricate the high-performance antimicrobial biodegradable polybutylene adipate-terephthalate (PBAT)/polylactic acid (PLA) based composite film with polyhexamethylene guanidine hydrochloride (PHMG) being as the efficient antimicrobial agent. Various measurements, including scanning electron microscopy (SEM), Fourier transform infrared (FTIR) analysis, 2D-small angle X-ray scattering (2D-SAXS), gas barrier test, mechanical property test, antimicrobial activity test, etc., were employed to carefully characterize the obtained films. The experimental results showed that the biaxially stretching could induce the orientation of polymer molecular chains and formation of submicron-thick layered thin-lamella structures of PLA dispersed phases in PBAT matrix in the presence of initiator dicumyl peroxide (DCP) and PHMG, thus significantly enhancing the crystallinity and mechanical properties of the obtained film, as well as improving the gas barrier and hydrophilicity-oleophobicity characteristics. At a stretching ratio of 3.5 × 3.5, the tensile strength of the prepared film could reach 61.9 MPa, and meanwhile the oxygen and water vapor permeability rates were reduced to 3.1 × 10 −14 and 5.1 × 10 −14 g/(cm s Pa), respectively. In addition, the incorporation of PHMG endowed the film with highly efficient antibacterial properties, e.g. a film with 1.0–1.5 wt% PHMG content could achieve a 100 % inhibition rate against Escherichia coli (E. coli) and a 99.9 % inhibition rate against Staphylococcus aureus (S. aureus). The further lychee preservation experiments demonstrated that the PHMG incorporating PBAT/PLA composite film remarkably extended the preservation time of fruit (40 % longer). The prepared antimicrobial PBAT/PLA/PHMG film exhibited the high safety and economic benefits, thus showing the promising application prospects in the field of food packaging.
研究领域:
材料科学
·
高分子科学
·
食品包装
·
抗菌技术
·
可生物降解材料
✓ 已验证
产品关联
DOI
高影响因子
ENERGY & FUELS
·
2025
·
IF 5.3
Kunlin Ma,Dongliang Li,Jingsheng Lu,Decai Lin,Deqing Liang
The high toxicity, excessive foaming, and wall-climbing behavior of traditional promoters limit their large-scale use in hydrate-based gas storage and separation. Environmentally friendly and efficient hydrate management strategies are needed. We used a sapphire cell for comparative analysis of kinetic dynamics and wall-climbing morphology during hydrate formation under sugar alcohol (SA) and erioglaucine disodium salt (EDS). Microscopic analyses explored the mechanisms of EDS and SA on hydrate formation, with comparisons to amino acids. This is the first report on the synergistic effects of SA and EDS, both of which exhibit excellent biocompatibility and degradability, not only in significantly enhancing hydrate formation but also in regulating hydrate wall-climbing behavior. Three distinct modes of hydrate wall-climbing were observed at varying concentrations of EDS and SA. At a concentration of 4 ppm EDS + SA, hydrates exhibited an “antenna growth” mode, characterized by delayed promotion and a significantly prolonged induction time compared to the film formation time. In contrast, 200 ppm EDS + SA demonstrated a strong synergistic effect, drastically reducing both film formation and induction times. Microscopic characterizations revealed that while EDS + SA enhanced the selectivity of the hydrate for CO2, it did not alter the hydrate cage structure. Optical microscopy results further demonstrate that EDS + SA can inhibit the capillary growth of hydrates and alter their crystal morphology. These findings suggest a mechanism in which a hydrophobic skeletal network promotes hydrate formation and regulates wall-climbing behavior. The EDS + SA combination holds promise for large-scale hydrate applications, offering efficient promotion and wall-climbing control.
研究领域:
化学工程
·
环境科学
·
材料科学
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产品关联
DOI
高影响因子
Foods
·
2025
·Vol. 14
·期 16
·2771
·
IF 5.1
Xiaolu Li,Si Wu,Tao Feng,Shijing Wu,Weiwen Xu,Qingmiao Wang,Yu Wang,Ning Hu,Xiaowen Shi
Traditional plastic packaging materials have brought serious environmental pollution and a number of health risks; so the development of biodegradable polymers as an alternative has received increasing attention. Here, active packaging materials with antioxidant, antimicrobial, and biodegradable properties were prepared using poly(lactic acid) (PLA) and chitosan loaded with quercetin. The experimental results demonstrate that the PLA/chitosan/quercetin film achieved an impressive ABTS radical scavenging rate of up to 98.2%, and the inhibition rates against Gram-negative (E. coli) and Gram-positive (S. aureus) bacteria were 87.60% and 80.45%, respectively. Furthermore, the composite film exhibited excellent oxygen barrier properties and biodegradability. Shelf life tests demonstrate that the PLA/chitosan/quercetin film retarded fish spoilage by 2 days compared to commercial polyethylene film. Additionally, the color changes in the film showed significant correlation with fish freshness, serving as an effective freshness indicator. Therefore, the PLA/chitosan composite film containing quercetin has a good application prospect in fish preservation and intelligent monitoring of fish freshness.
研究领域:
高分子材料科学
·
食品科学与技术
·
包装工程
·
生物医学工程
·
环境科学
·
食品安全
·
天然产物化学
·
智能材料
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产品关联
DOI
PubMed
高影响因子
Polymer Chemistry
·
2016
·Vol. 7
·期 11
·2037-2044
·
IF 5.687
Yong-Hao Ma,Jingjing Yang,Bolin Li,Yao-Wen Jiang,Xiaolin Lu,Zhan Chen
Biodegradable and injectable hydrogels are widely used in many important applications such as cell culturing, tissue engineering, drug delivery, and cell therapy. Here we developed an inexpensive and facile method to prepare a biodegradable and injectable polymer–liposome hydrogel using aldehyde modified xanthan gum (ALD-XA) as a matrix material and phosphatidylethanolamine (PE) liposomes as cross-linkers. To the best of our knowledge, this is the first time hydrogels containing crosslinked lipid liposomes have been prepared. The hydrogel was formed through dynamic Schiff base linkages between aldehyde groups of ALD-XA and amino groups of PE liposomes. After mixing ALD-XA and PE liposome solutions, the xanthan gum-based liposome hydrogel could be rapidly prepared within 5 min at room temperature. Owing to the dynamic equilibrium of the Schiff base bonds, the hydrogel responds to various stimuli, including physical stimulus (heat), chemical stimulus (pH variation), and biological stimulus (histidine exposure). Additionally, the hydrogel could easily be biodegraded by papain as a result of the digestion of xanthan gum backbones by enzymes. The hydrogel also exhibits excellent self-healing capability. Cells encapsulated in the prepared hydrogel are viable for a long period of time, indicating that it is an excellent carrier material suitable for three-dimensional (3D) cell culturing. These advantages suggest that the xanthan gum-based liposome hydrogel is a promising candidate as a smart cell carrier for cell therapy and as an excellent cell culturing scaffold for tissue engineering.
研究领域:
材料科学
·
生物医学工程
·
细胞生物学
·
药剂学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）