Progress in Natural Science-Materials International
·
2024
·
IF 4.8
Xiaodan Wang,Dan Xie,Wenwen Hou,Lilong Gao,Yanzhi Xia,Kunyan Sui
Strong and stretchable hydrogels are in great demand but challenging due to the trade-off between the strength and stretchability. Here, we successfully prepared highly strong and stretchable sodium alginate/polyacrylamide (SA/PAM) double network (DN) hydrogels by using swollen calcium alginate fiber (CAF) as the first energy dissipating network. The swollen fibers contributed two functions: the homogeneous SA ionic crosslinked-polymer networks and the soft fiber reinforcement. In contrast to the stiff fiber, the soft CAF provide more effective energy dissipation transferring from soft fiber to the liquid hydrogel. The as-prepared hydrogels demonstrated a high tensile strength (0.83 MPa), high stretchability (4230 %), and high toughness (15.7 MJ/m 3 ), as 5, 3 and 14 times of the SA/PAM hydrogels. This soft fiber-reinforced strategy offers a new way for preparing high-performance hydrogels, broadening their applications areas.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of the Iranian Chemical Society
·
2023
·
IF 2.4
Fu Qiuping,Hu Jing,Zhou Shaoqi
Graphene oxide@sodium alginate (GO@SA) composites were prepared by combining graphene oxide (GO) with sodium alginate (SA) for adsorption of Pb(II). Fourier-transform infrared spectra (FT-IR) and field emission scanning electron microscopy (FESEM) were used to characterize the structure and morphology of the composites. And the adsorption performance of Pb(II) by GO@SA was studied. The adsorption capacity of Pb(II) by GO@SA increased with the increase of pH and temperature. The adsorption process was consistent with the Langmuir isothermal adsorption model and quasi-second-order kinetic model, and the adsorption process was spontaneous and endothermic. At 303.15 K, the maximum adsorption capacity fitted by the Langmuir isothermal model was 241.5 mg/g.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2018
·
IF 3.909
Ying Shao,Chunhua Wu,Tiantian Wu,Chunhong Yuan,Shiguo Chen,Tian Ding,Xingqian Ye,Yaqin Hu
Silver nanoparticles (AgNPs) were synthesized by a new ‘green chemistry’ method that uses sodium alginate (Na-Alg) and ascorbic acid (Vc) as the stabilizing and reducing agents, respectively. A possible mechanism involved in the reduction and stabilization of nanoparticles was investigated. The effect of reaction conditions such as pH, the addition of AgNO 3 and Vc, ultrasonication treatments on the synthesis of AgNPs was investigated. The formation of AgNPs was confirmed by UV–Vis spectroscopy and characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results indicated that the size and distribution of AgNPs were significantly affected by reaction parameters. XRD and TEM analysis confirmed the formation of spherical and face-centred cubic nanoparticles. They showed strong antibacterial activity against Staphylococcus aureus and Escherichia coli due to cell death caused by the increase in membrane permeability and disruption of bacterial wall integrity. It indicated that Na-Alg-AgNPs is a potential food packaging material.
研究领域:
材料科学
·
纳米技术
·
化学
·
生物技术
·
微生物学
✓ 已验证
DOI
PubMed
高影响因子
POLYMER BULLETIN
·
2015
·Vol. 72
·期 11
·2857-2869
·
IF 1.438
Hu Yan,Chen Tao,Dong Xiaoying,Mei Zhinan
In this report, novel biopolymer hydrogels composed of sodium alginate (SA) and the oxidized sodium alginate (OSA) with an interpenetrating polymer network (IPN) structure were prepared by a combination of chemical and ionic cross-linking approaches. By using SA as the main raw material, OSA was obtained using sodium periodate. The gelation process of the IPN hydrogels was the formation of dual network: one gelatin network cross-linked by OSA with dihydrazide and another SA network cross-linked by Ca 2+ . The factors which affect its swelling properties were discussed. The best swelling ratio of the beads was 2300, and the swelling property was greatly affected by pH and preparation condition. The stability and swelling behavior of OSA/SA gel beads were better improved than the pure SA/Ca 2+ system. The OSA/SA hydrogel beads with the pH sensitivity and stability will be a good candidate for site-specific controlled drug release carrier.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
DOI
高影响因子
Materials Research Express
·
2021
·Vol. 8
·期 6
·065402
·
IF 1.62
Mengde Li,Yahua Li,Xiaofeng Wang,Zhonghua Chang,Yong-Chao Jiang,Shanshan Han,Zhixiang Cui,Xinwei Han,Qian Li
To develop diversified drug carriers for local treatment of cancer, three types of alginate membranes were fabricated by spin-coating, freeze drying and electrospinning. The uniaxial tensile test is shown that spin-coated membranes possess the maximum tensile strength. All the three types of membranes present excellent adsorption performance toward pyridirubicin chloride (THP) and the electrospinning membranes exhibit the maximum adsorption mass of 144.13 mg g−1. The pseudo-first order, pseudo-second order, and intra-particle diffusion equation were used to evaluate the kinetic data and the drug adsorption process followed the pseudo-first-order model well. The drug releasing mechanism was studied by using different release medium, and it shows that the release process was undertaken by ions exchange reaction. The result shows that the three types of membranes are promising materials for the local treatment of cancer such as local cancers of the pancreas and trachea.
研究领域:
药学
·
材料科学
·
癌症研究
✓ 已验证
DOI
高影响因子
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
·
2024
·
IF 2.5
Xiaohu Ren,Le Huang,Hudie Yuan,Hongfeng Yin,Huiqing Fan,Yuchi Liu,Yalou Xin,Yun Tang,Chao Wang
Biomass-derived carbon aerogels are expected to be ideal candidates for electromagnetic wave (EMW) absorption due to their extensive sources, cheap cost, low density and abundant porosity. Herein, using the natural polymer sodium alginate (SA) as the carbon-based precursor and SiC nano-whiskers (SiC w ) as the reinforcing material, a series of three-dimensional (3D) SiC w @C composite aerogels doped with different metal ions (Fe, Ni, Al) were designed and studied for lightweight and effective EMW absorption. The emergence of metal ions and three-dimensional conductive carbon networks enriches the loss mechanism of the composites. The results show that the SiC w @C-Al exhibits a considerable minimum reflection loss (RL min ) value at 1.5 mm thickness (-28.7 dB) and a broad effective absorption bandwidth (EAB, RL < -10 dB) of 4.1 GHz. Meanwhile, SiC w @C-Fe has good wave absorption performance at a thickness of 2 mm, RL min is −49.2 dB, and EAB is 3.6 GHz. By adjusting the matching thickness of the Al 3+ and Fe 3+ crosslinked composite aerogel from 1.5 mm to 3.5 mm, the integrated EAB can cover the Ku-band, X-band and even C-band. The SA derived 3D SiC w @C composite aerogels open a new path for the design of lightweight and effective EMW absorption materials used in multi-frequency.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·
IF 2.7
Yu-Hui Jiang,Kai-Ruo Zhu,Xin-Yu Xiao,Shang-Ru Zhai
The advanced treatment and resource utilization of oily wastewater are of great significance to solve water shortages and realize carbon peaking and carbon neutrality goals. The construction of biomass-based superwetting surfaces with recyclability, non-toxicity, and degradability is considered to be a promising strategy to overcome the unavoidable bottlenecks of “secondary pollution” and high costs in the current design of superhydrophobic structures. In this work, a strategy for preparing multifunctional sodium alginate (SA) superhydrophobic surfaces was proposed. By virtue of the synergistic mechanism of SA, SiO2 nanoparticles, pseudo-polyrotaxane and methyltrimethoxysilane, a superhydrophobic sponge with a green biomass-based carrier was prepared, which was constructed using a superhydrophobic elastomer with a three-dimensional network. The modified SA aerogel has a contact angle of 155.2° and even exhibits strong corrosion resistance in harsh environments with a water contact angle greater than 155°. Notably, the increase of green biomass-based materials provides a promising and sustainable development path for the preparation of hydrophobic substrates.
研究领域:
环境科学
·
材料科学
·
化学工程
·
可持续发展
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE RESEARCH
·
2026
·
IF 3.4
Chunlan Feng,Zhichao Wen,Jinsong Ou,Zhiqin Jin,Jing Li,Xiaofei Yan
Citric acid was used to dissolve and crosslink chitosan, offering a green and environmentally friendly preparation route. • By introducing cellulose nanofibers, a highly stable 3D network scaffold was constructed. • The prepared cellulose nanofiber/sodium alginate/chitosan aerogel balls exhibited excellent structural stability. • The maximum adsorption capacity for the cationic dye methylene blue reached 1371.1 ± 54.8 mg/g. • Adsorption followed pseudo-second-order kinetics and Langmuir isotherm models. To develop sustainable materials for textile dye wastewater purification, this study utilized renewable biopolymers to fabricate cellulose nanofiber/sodium alginate (CNF/SA) hydrogel spheres via metal-ion crosslinking. Subsequently, chitosan was dissolved in an environmentally friendly citric acid solution and integrated into the CNF/SA matrix through crosslinking, followed by freeze-drying to obtain cellulose nanofiber/sodium alginate/chitosan (CNF/SA/CTS) aerogel spheres. Comparative characterization and adsorption performance studies revealed that the introduction of chitosan into the CNF/SA system formed a ternary composite material (CNF/SA/CTS) with a denser and more stable three-dimensional network structure, enriched with abundant functional groups, such as amino groups. This material maintained good structural stability and adsorption performance across a wide pH range and after multiple adsorption-desorption cycles. Notably, CNF/SA/CTS exhibited a strong adsorption capacity for various dyes, including methylene blue, crystal violet, methyl orange, and malachite green. The maximum adsorption capacity for cationic dyes reached as high as 1371.1 ± 54.8 mg/g, outperforming the corresponding CNF/SA binary material. The adsorption process followed pseudo-second-order kinetics and the Langmuir isotherm model, and was determined to be spontaneous and endothermic. This study confirms the significant potential of CNF/SA/CTS aerogel spheres as an ideal green adsorbent, highlighting the promising sustainable application prospects of biomass-based composite materials in wastewater treatment. Download: Download high-res image (506KB) Download: Download full-size image
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Di Sun,Haichao Yu,Hechen Shen,Yiran Wang,Tianqi Su,Hongbo Guo,Xiong Xing,Weikang Wang,Li Wei,Wenqing Gao,Yi Yao,Bingyu Xiu,Jianing Wang,Xuesong Zhang,Yanchuan Guo
Uncontrollable traumatic bleeding caused by surgery or traffic accidents is an important factor leading to high mortality rates. Therefore, there is an urgent hemostatic materials with fast, effective, and safe to achieve rapid hemostasis. Traditional hemostatic materials have limited effect in deep irregular tissues or massive bleeding scenes, while exocrine hydrogel can break through limitations by quickly stopping bleeding and reducing secondary injury. The gelatin time of an injectable 10 % oxidized sodium alginate-10 % gelatin (OSA-G) hydrogel was 8 s. Platelet-rich plasma exosomes (PRP-Exo) from the autologous biological macromolecule play a crucial role in blood coagulation and hemostasis. The OSA-G hydrogel loaded with PRP-Exo exhibited superior effects on proliferation and angiogenesis in vitro. The APTT and thromboelastography of the OSA-G-EXO group were significantly reduced, indicating the occurrence of intrinsic coagulation pathways and the blood was in a hypercoagulable state and promoting hemostasis. Meanwhile, it has been confirmed in the rat tail-cutting model and the liver bleeding model that the hemostasis time is approximately 30 s, promoting skin healing in the skin wound model. By providing a controlled environment for coagulopathy or anticoagulant-treated patients, it shows a good clinical application prospect.
研究领域:
生物医学工程
·
血液学
·
创伤医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Results in Chemistry
·
2025
·
IF 4.2
Zhengyue Zhu,Jiancong Ye,Tao Ye,Jialong Zou,Junjie Ye,Qi Li,Yan Liu
The effects of different additions of dimethyl sulfoxide (DMSO) to poly(N-isopropyl acrylamide)/sodium alginate hydrogels(D-PNIPAM/SA) on the desalination of saline soil were investigated in this study. The effects of liquid absorption rate(LAR) of the D-PNIPAM/SA by temperature, NaCl concentration, and DMSO addition amount were studied. And the deswelling rate(DR) tests of different DMSO addition amounts were also investigated. The LAR decreased significantly with the temperature increase from 20 °C to 35 °C and with the increase of NaCl concentration from 0.597 g/L to 7.714 g/L. The LAR increased while the DR decreased with the DMSO addition increased from 0 ml to 3.5 ml. The results indicated that the optimal addition of the DMSO was 3.5 ml. In this addition, the D-PNIPAM/SA was observed in its best form by an Ultra-depth of field 3D microscope, and the phase transition temperature was reduced to −2.95 °C. In NaCl solution, DMSO was added from 0 ml to 3.5 ml, and the D-PNIPAM/SA absorption rate increased from 6.60 g/g to 12.41 g/g.In the desalination of saline soil study, the desalination rate of the D-PNIPAM/SA was reached 88.609 % in the saline soil solution test, and the desalination rate reached 94.765 % in the dry saline soil test.
研究领域:
材料科学
·
环境科学
·
高分子化学
·
土壤修复
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Mohan Hou,Qiuyu Xu,Lifang Wang,Xuepeng Zhang,Lei Zhang,Hongguo Gao,lifang Liu
Maintaining a moderate moist microenvironment and establishing an effective antimicrobial barrier are of great significance for promoting wound healing. However, traditional dressing materials often encounter bacterial infections, and the system design defects lead to weak moisturizing ability, and the rapid water evaporation rate leads to premature dehydration of the wound, which is not conducive to wound healing. The synergy between the microscopic wettability control and the macrostructure design of the material is crucial. In this work, nanocelluloses (TCNCs) /sodium alginate (SA) were used as substrates for porous materials due to their good biocompatibility and wettability. The internal structure of TCNCs/SA were optimized by changing the ratio of SA to TCNCs. The excellent pore structure makes the samples have better water retention ability and moisture vapor transmittance (water retention ratio = 20.9, MVTR = 1412.37 g/m 2 /d). Besides, the loading of chlorhexidine acetate (CHX) can effectively improve the antibacterial properties of TCNCs/SA and the antibacterial diameter against Escherichia coli and Staphylococcus aureus is >10 mm. Finally, the TNSX sample caused considerable acceleration at the SD rats skin excisions healing. The results illustrate that the TCNCs/SA porous foams have great potential application in medical dressings.
研究领域:
生物医学工程
·
材料科学
·
药剂学
·
伤口护理
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Chenglong Zhu,Quan Wang,Jiahao Li,Yinbo Zhu,Rongguang Che,Yidi Li,Jingjiang Wei,Siqian Lu,Hao Xie,Hao Wang,Weimin Wang,Hang Ping,Kun Wang,Zhengyi Fu
As a laminated composite, the robust interface between aragonite platelets and organic matrices imparts nacre with superior mechanical properties. Additionally, the prestressing strategy, which involves compressing hydroxyapatite platelets through the contraction of collagen molecules, is employed to enhance bone strength. Inspired by these natural materials, layered brushite/sodium alginate composite bulks (BSPE) are fabricated with high performance through synergistic interfacial interactions and prestress processing. The bulks are prepared by stacking and hot-pressing BSPE films, which are obtained via unidirectional freeze-casting and pressing. To strengthen the interfacial interactions, brushite platelets are surface-modified with polyvinyl alcohol molecules, forming strong hydrogen bonds with sodium alginate chains. Furthermore, megapascal-level contractile prestresses are generated by soaking surface-modified films in ethanol, inducing the shrinkage of sodium alginate chains through dehydration. Consequently, the specific strength and specific toughness of the composites reach 137.5 MPa/(Mg m −3 ) and 3.8 MPa m 1/2 /(Mg m −3 ), respectively, representing 2.0 and 2.5 times the values of natural nacre. Moreover, the energy absorption capacity of the BSPE bulk is approximately 2.5 times higher than that of the control bulk. The synergistic approach provides new insights for designing and manufacturing high-performance composites under mild conditions.
研究领域:
材料科学
·
复合材料
·
仿生材料
·
力学性能
·
高分子科学
✓ 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）