INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Ke Zhang,Zhihua Li,Suliman Khan,Mohammad Rezaul Islam Shishir,Huanhuan Zheng,Liying Gao,Jiyong Shi,Xiaowei Huang,Xiaobo Zou
This study aimed to develop a natural colorimetric aerogel based on carboxymethyl cellulose (CMC), sodium alginate (SA), black goji anthocyanin (BGA), and various natural fibers such as cotton fiber (CF), silk fiber (SF), and down fiber (DF) via a freeze-drying approach for monitoring fish freshness. Various colorimetric aerogels, including CMC/SA, CMC/SA/CF, CMC/SA/SF, and CMC/SA/DF were developed and structurally characterized using SEM, FTIR, XRD, TGA, TPA, and BET. CMC/SA aerogel showed higher density (0.054 g/cm 3 ) with no surface pores, while CMC/SA/SF had a large surface area (18.6214 m 2 /g) with uniformly higher porosity (97.113 %) and a lower density (0.024 g/cm 3 ). Moreover, the CMC/SA/SF aerogel exhibited higher mechanical properties and color sensitivity at various pH compared to other aerogels, which was then used as an indicator label for monitoring fish freshness during storage at 4 °C and 25 °C. The label aerogel became blue from purple, when TVB-N and pH values reached 20.03 mg/100 g and 19.50 mg/100 g and pH 6.67 and 6.67 at 4 and 25 °C, respectively, exhibiting fish deterioration. Taken together, the colorimetric aerogel composite CMC/SA/SF shows great potential for application as an intelligent package in monitoring the freshness of fish.
研究领域:
食品科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2022
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IF 6.449
Juan He,Lingzhi Song,Zhongkai Wang
The design of functional polyamides for specialized applications has attracted increasing attention during recent years. Herein, a facile and efficient method towards mechanical strong functional polyamides with varied side groups is developed. An α , ω -diene functional amide monomer was prepared through the amidation reaction of methyl 10-undecenoate (a kind of castor oil derivative) and 1,3-diamino-2-propanol. The pendant hydroxyl group was converted to ester groups to afford six other monomers. High molecular weight functional polyamides with varied pendant groups, including hydroxyl, acetate, butyrate , isobutyrate, benzoate, acrylate, and imidazole, were prepared via thiol-ene addition polymerization. Differential scanning calorimetry (DSC) and atomic force microscopy (AFM) results indicate that the melting temperature, degree of crystallization, and crystalline size depend on the pendant groups. Inspired by natural silk proteins , functional polyamides with controllable mechanical properties can be achieved by copolymerizing of these monomers.
研究领域:
材料科学
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有机化学
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
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2022
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IF 6.137
Mengqi Bai,Yi Li,Yonghai Feng,Lei Liu,Yan Liu,Chaoyang Zhang,Minjia Meng,Jianming Pan
Generally, 2D “thin-film” structural molecularly imprinted membranes (MIMs) prepared by the common phase inversion method suffer low adsorption capacity due to the easy embedment of imprinting sites. Herein, an alternative “delayed phase inversion” strategy was first developed to construct a natural loofah-based 3D porous MIM (LPMIM), in which the as-prepared molecularly imprinted polymers (MIPs) with artesunate (ARU) as dummy template spontaneously interacted with the polyvinylidene fluoride (PVDF) pre-treated loofah framework (LPM), and evenly anchored on loofah fiber surfaces, similar to the cobweb locking raindrops. Interestingly, the natural 3D fiber cross networks of loofah not only provided sufficient capacity and space to support MIPs without causing aggregation and maintains high flux, but also the inherent high mechanical strength of loofah fibers endowed the LPMIM with excellent stability. Under dynamic conditions the ART adsorption capacity of LPMIM could be further remarkably improved by tailoring the flow rate of 1.19 mL·cm −2 ·min −1 , up to 334.70 mg/g. As a result, effective enhancement in the artemisinin (ART) adsorption capacity were achieved for the LPMIM, which was about 2.25 times higher than that of the common blend MIM prepared by common phase inversion method (148.30 mg/g). Moreover, the LPMIM possessed high ART selectivity towards its analogue, artemether (ARE), giving an ART/ARE ratio of 2.7. Furthermore, the LPMIM displayed excellent recycling performance. By altering the template of MIPs, the corresponding LPMIM can be expanded to highly selective separation of other substrates along with large absorption capacity. This work highlights a universal strategy to construct novel MIMs with high absorption capacity and selectivity using bio-based fiber cross frameworks.
研究领域:
材料科学
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环境科学
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药物化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
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IF 9.5
Jing Wu,Tingting Zhang,Jin Qu,Fan-Zhen Jiao,Chen Hu,Hao-Yu Zhao,Xiaofeng Li,Zhong-Zhen Yu
Although the emerging interfacial solar steam generation technology is sustainable and eco-friendly for generating clean water by desalinating seawater and purifying wastewaters, salt deposition on the evaporation surface during solar-driven evaporation severely degrades the purification performances and adversely affect the long-term performance stability of solar steam generation devices. Herein, to construct solar steam generators for efficient solar steam generation and seawater desalination, three-dimensional (3D) natural loofah sponges with both macropores of the sponge and microchannels of the loofah fibers are hydrothermally decorated with molybdenum disulfide (MoS2) sheets and carbon particles. Benefiting from fast upward transport of water, rapid steam extraction, and effective salt-resistant capacity, the 3D hydrothermally decorated loofah sponge with MoS2 sheets and carbon particles (HLMC) with an exposed height of 4 cm can not only obtain heat by its top surface under the downward solar light irradiation based on the solar–thermal energy conversion but also gain environmental energy by its porous sidewall surface, achieving a competitive water evaporation rate of 3.45 kg m–2 h–1 under 1 sun irradiation. Additionally, the 3D HLMC evaporator exhibits long-term desalination stability during the solar-driven desalination of an aqueous salt solution with 3.5 wt % NaCl for 120 h without apparent salt deposition because of its dual type of pores and uneven structure distribution.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
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2023
·
IF 11.1
Yan Lv,Runmin Xu,Kaiting Zhang,Lu Hong,Juan Zhou,Beibei Weng,Zuyu Huang,Shanshan Wu,Yong Guo,Yuxia Chen
In this study, agricultural waste luffa vines (LVs) were used to develop solar evaporators by surface carbonization and KOH treatment combined with freeze-drying method. Scanning electron microscopy (SEM), solar absorption, solar thermal management and salt dissolution tests showed that the water vapor generation rate of a single column of LV-based solar evaporator after surface carbonization was as high as 3.26 kg m −2 h −1 under 1 sun, and its evaporation efficiency (118%) even exceeded the theoretical valve. After 36 h of continuous use, there was almost no salt deposition. Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), contact angle, thermal conductivity, evaporation enthalpy, and low field nuclear magnetic resonance (LF-NMR) analyses indicated that the high evaporation efficiency of LV-based solar evaporators after surface carbonization was mainly due to high water transport capacity, low water evaporation enthalpy, and high light absorption rate (91%) of LV. The excellent salt-deposition resistance benefitted from the natural multilayered gradient porous structures of LV, forming spontaneous salt backflowing systems. The desalinization rate of LV-based solar evaporators exceeded 99.9%, which was even higher than those of many membrane elements and thermal desalination systems. They also had excellent removal effects on dyes and oily wastewater. After 30 d of continuous soaking, the compressive strength of 2–cm LVs was still 9.4 MPa. KOH-freeze-drying treatment further improved the salt-deposition resistance of LV-based solar evaporators, but reduced their evaporation efficiency and mechanical performance. This work suggests that LVs with carbonized surface have significant potential for development of environmentally friendly biomass solar evaporators with efficient evaporation, excellent resistance to salt deposition, and good durability.
研究领域:
环境科学
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材料科学
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生物学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
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IF 16
Xiang Zhang,Xiaoning Liu,Mohan Wang,Jingjing Zhang,Ke Liu,Ziming Xu,Wanfeng Chen,Jun Hu,Pan Zhang,Yinshun Zhang,Liang Dong,Weiping Xu,Zhao Pan
Point-wise suturing is the standard method for ensuring that patches effectively perform mechanically supportive functions in tissue repair. However, stress concentrations around suture holes can compromise the mechanical stability of patches. In this study, we develop a suturable hydrogel patch with flaw-tolerance capabilities by leveraging multiscale stress deconcentration, inspired by natural silk. This design mitigates stress concentration across two scales through the synergistic integration of nanoscale high-energy crystalline domains and intermolecular interactions. The resulting integral hydrogel patch exhibits superior flaw resistance compared to conventional patches and effectively addresses tissue adhesion issues. To validate the efficacy of the patch, we demonstrate successful in vivo repair of abdominal wall defects in rats, comparing the performance of the proposed patch to commercial mesh patches (Prolene). The integral patch design strategy present here offers a valuable approach for developing patches that can be tailored to meet the mechanical support needs of various tissue repair applications.
研究领域:
生物材料学
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组织工程
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医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
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2020
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IF 7.632
Yanlei Hu,Liang Liu,Juan Yu,Zhiguo Wang,Yimin Fan
Natural silk fibers consist of well-organized, sophisticated hierarchical architectures that contribute to the robust mechanical performance and functions of the fibers; thus, the direct extraction of silk nanofibers (SNFs) at a single level is a major challenge. Herein, a novel simple, environmentally friendly, and recyclable route was developed to directly downsize natural silks into SNFs via a green deep eutectic solvent (DES) system assisted by mild mechanical disintegration. SNFs with diameters ranging from 2.3 to 28 nm and lengths of 598 ± 308 nm were isolated at a high yield (over 70%) under optimal DES pretreatment conditions. On the basis of the inherent amphoteric properties of SNFs, the pH sensitivity and reversibility were explored to lighten the weight of SNF dispersions for storage and transport, and furthermore, the double adsorption properties of the SNFs might functionalize them for transparent anticounterfeiting devices. In addition, the nanodispersibility of the SNFs in organic solvents and the subsequent nanofiber-containing composite materials with hydrophobic polymer matrixes provide new prospects for wound dressing and porous scaffold materials in biomedical applications.
研究领域:
材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2024
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IF 4.3
Tallat Munir,Jiawei Zhou,Ming Liu,Shiyang Bai,Jihong Sun
The present work evaluated the removal performances of Ni 2+ , Cd 2+ , Sr 2+ , Mn 2+ , and Fe 3+ from an aqueous solution using a comparison between synthetic clinoptilolite (SCP) and natural CP (NCP). Unlike previous demonstrations that treated each metal ion individually, these five metal ions and the used adsorbents were combined in a single treatment and explored via various characterizations, such as XRD patterns, SEM images, N 2 sorption isotherms, ICP, and AAS analysis. The results revealed that the capacities of SCP at pH 3.0–8.0 and 25–75 °C were nearly 20 times higher than those of NCP, showing 2000, 1720, 1875, 1510, and 22 mg g −1 , for Ni 2+ , Fe 3+ , Cd 2+ , Mn 2+ , and Sr 2 , respectively. The reason is mostly attributed to its purity and perfect crystal lattice. The kinetic behaviors in both cases indicated that the pseudo-2nd-order model provided a better description. Their adsorption behaviors exhibited a better fit with the Freundlich models on the removal of Ni 2+ , Cd 2+ , and Mn 2+ , the Langmuir equation on the removal of Fe 3+ , and both Freundlich and Langmuir on the removal of Sr 2+ , respectively. The thermodynamic findings indicated that the SCP was used to be faster, more spontaneous, and had a better favorable adsorption performance than the NCP. Additionally, five times recyclability and different stability tests further supported the dominant adsorbent nature of using SCP as an adsorbent.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2022
·
IF 4.383
Cheng Wang,Jiale Yu,Kai Feng,Huidong Guo,Lipeng Wang
In this study, natural clinoptilolite was treated with NaOH solutions of different concentrations under mild ambient conditions. The composition and structure of the as-prepared samples were characterized, and their performance was assessed in terms of the removal of the heavy metal ions Cd 2+ , Cu 2+ , and Cr 3+ from the aqueous solution. The results showed that the composition, structure, and capability of removal of heavy metal ions of the samples were significantly influenced by the NaOH concentrations. The crystal structure of clinoptilolite remained invariant under a relatively low NaOH concentration (≤0.5 M), began transforming into zeolite Na–P under a medium NaOH concentration (∼1.0 M), and then completely transformed into it under a high NaOH concentration (2.0–4.0 M). The samples treated with NaOH had lower SiO 2 /Al 2 O 3 ratios, and were superior to unmodified natural zeolite in removing the heavy metal ions. This method of treatment with relatively high concentrations of NaOH is a simple and effective way to transform natural clinoptilolite into the zeolite Na-P rich ion exchanger, which is suitable for removing heavy metal ions.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Caicai Li,Qian Zhang,Dongwei Lan,Mengyao Cai,Zulan Liu,Fangyin Dai,Lan Cheng
Many complex diseases, such as bacterial infections, frequently accompany cutaneous wound healing, adding to the difficulty of clinical wound management. Consequently, in addition to displaying strong biocompatibility and actively promoting wound healing, an optimal wound dressing should also possess antimicrobial qualities to address issues with bacterial infection. This paper developed natural silk fiber (SF) membranes (also known as a flat silk cocoon (FSC)) with antimicrobial properties as a dressing for skin wounds. By changing the spinning tools and environment of silkworm larvae, a novel natural SF membrane with a cocoon structure and controllable size was prepared. The functional SF membranes were obtained via a hot press process and grafted with ε -Poly- l -lysine (EPL). The results showed that the SF membrane dressing was adjustable in size with a similar structure to the extracellular matrix (ECM), displaying inherent mechanical properties, excellent antimicrobial qualities, and biocompatibility. In vivo experiments using a full-thickness skin defect model indicated that EPL-modified SF membranes significantly promoted the rate of wound healing, exhibiting thicker granulation tissue and higher collagen disposition than commercial dressings (Tegaderm™ film). Therefore, the excellent mechanical qualities and cytocompatibility of the antimicrobial EPL-modified SF membranes substantially promote their potential application as a chronic wound dressing.
研究领域:
材料科学
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生物医学工程
·
伤口愈合研究
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Chuanjin Yin,Xueju Qi,Shuhan Zhao,Xiangsheng Han,Chuanlong Guo,Xiaochen Wu
Industries and daily life produce large amounts of oily wastewater. For the efficient and economical separation of oil and water mixtures, silk microfibers (SM) were integrated with aramid nanofibers (ANF) to fabricate a hydrophobic and oleophilic O-SM/ANF sponge through a facile HCl volatilization method followed by hydrophobic surface modification. The O-SM/ANF sponges showed low density of 0.04–0.13 g/cm 3 , water contact angle of 130–138°, high absorption capacities up to 11.4–20.7 times of their own weight, and can be recycled for > 20 times by manual squeezing. The O-SM/ANF sponges exhibited high separation efficiencies for both immiscible oil/water mixtures and oil/water emulsions, desirable as oil/water separation materials.
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 B-ENGINEERING
·
2024
·
IF 12.7
Xingyu Gui,Ping Song,Boqing Zhang,Haoyuan Lei,Lina Wu,Jiayi Sun,Rong Tang,Hui Zhang,Yuxiang Qin,Zixuan Su,Jianxun Sun,Zhihe Zhao,Min Han,Wei Wei,Yujiang Fan,Changchun Zhou
Critical-sized bone defects pose serious health concerns for patients. Clinically, the use of functionalized bone implants has emerged as an effective solution. However, the rapid advancement in drug and biomaterials has led to an increasing design cost, triggering discussions in the field about how to efficiently create customized functional bone implants. Inspired by the unique structure of natural loofah sponges that effectively deliver nutrients to seeds, we designed a functionalized bone implant emulating this structure. Drug-release gradients were achieved through the application of different concentrations of hydrogels within the composite scaffold. This approach allowed active substances to be released outwardly during the early stage of bone repair, sustaining a local drug micro-environment within the implant scaffold that promotes angiogenesis and osteogenic differentiation in damaged areas. In vivo experiments showed that our loofah sponge bionic scaffold outperformed traditional hydroxyapatite scaffolds by promoting both bone and vascular regeneration. We expect the design of loofah sponge bionic scaffold could potentially deliver an effective strategy in the development of functionalized bone implants.
研究领域:
生物医学工程
·
组织工程
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材料科学
·
再生医学
✓ 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）