APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yijiang Li,Chen Chen,Wencheng Xia,Yujin Sun,Hongxin Qiu
In this study, in-situ flocculation kinetics tests, fourier transform infrared spectroscopy and DFT theoretical calculation were used to analyze flocs properties of calcite flocs under combination of sodium alginate and AlCl 3 /polyaluminum chloride (PAC) and their adsorption mechanism. The results showed that the average size of calcite flocs treated with AlCl 3 -sodium alginate was smaller than that of flocs treated with PAC-sodium alginate. The number of residual fine particles in the slurry treated with AlCl 3 -sodium alginate was more than that in the slurry treated with PAC-sodium alginate. However, the fractal dimension of calcite flocs treated with AlCl 3 -sodium alginate was larger than those treated with PAC-sodium alginate. The sodium alginate and Al 3+ could form chemical adsorption on the calcite surface. AlCl 3 has a higher content of Ala than PAC. Ala could form chemical adsorption between sodium alginate and calcite, resulting in a high strength and fractal dimension of calcite flocs. Alb and Alc was not easily able to form metal bridges between calcite and sodium alginate. The sweep effect of PAC and sodium alginate leads to the formation of large-sized flocs. This work can promote the supplication of sodium alginate as a green flocculant.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Huanhui Zhan,Ju Liu,Ping Wang,Chenfei Wang,Zhongguo Wang,Muhua Chen,Xinbao Zhu,Bo Fu
In the field of building energy conservation , the development of biodegradable biomass aerogels with excellent mechanical performance, flame retardancy and thermal insulation properties is of particular importance. Here, a directional freeze-drying method was used for fabricating composite sodium alginate (SA) aerogels containing functionalized ammonium polyphosphate (APP) flame retardant . In particular, APP was coated with melamine (MEL) and phytic acid (PA) by a supramolecular assembly process. Through optimizing the flame retardant addition, the SA-20 AMP sample exhibited excellent flame retardant and thermal insulation properties, with the limiting oxygen index of 38.2 % and the UL-94 rating of V-0. Such aerogels with anisotropic morphology demonstrated a low thermal conductivity of 0.0288 (W/m·K) in the radial direction (perpendicular to the lamellar structure). In addition, as-obtained aerogels displayed remarkable water stability and mechanical properties, indicating significant potential for practical applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Sai Yang,Ziteng Lian,Lin Cheng,Xiuying Liu,Shicheng Dai,Xiaohong Tong,Huan Wang,Lianzhou Jiang
In this study, the emulsion gel system was constructed by succinylated SPI (SSPI) emulsion together with sodium alginate (Alg). The aim was to evaluate the influence of succinylation and Alg concentration (0 %, 1 %, 1.5 %, 2 %, 2.5 %, w/v) on the emulsion gel structure and formation mechanism, the encapsulation efficiency, release behavior, and digestion properties of quercetin . The succinylation modification and the increase in Alg concentration improved the textural properties of the emulsion gels and SSPI-2 % showed the optimum water-holding capacity (91.37 %). Fourier transform infrared spectroscopy , intermolecular forces, and X-ray diffraction indicated the formation of the gel network dominated by electrostatic interactions and hydrogen bond stabilization, with a decrease in the crystal size and disruption of the molecular rigidity structure. Low-field nuclear magnetic resonance, rheology, and microstructures showed the improvement of the moisture distribution of the gels and the formation of denser and more homogeneous. The quercetin delivery properties of SSPI emulsion gels were enhanced compared to SPI emulsion gels. The encapsulation rate of quercetin was further enhanced with increasing Alg concentration, and the optimum was reached at SSPI-2 % (96.40 %). The Ritger-Peppas model describes quercetin from SPI and SSPI gels regulated by different release kinetics in gastrointestinal fluids with a favorable sustained release effect. In addition, SSPI-2 % exhibited the highest quercetin bioaccessibility (74.54 %) and chemical stability (66.81 %). This research provides novel perspectives to explore the development of innovative emulsion gels and transport systems for bioactive.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2024
·
IF 4.3
Peihua Xu,Lida Zhu,Baoquan Chang
Endowing variable-stiffness soft robots (VSSRs) with sensing capabilities will help to improve their safe interaction capabilities and intelligence. Therefore, this work adopts direct ink writing (DIW) to directly fabricate functional soft components of the VSSR, including heating and sensing. To improve the printing accuracy of DIW, the liquid metal (LM)/sodium alginate (SA) composite ink was prepared by sonicating LM in a SA aqueous solution and centrifuging. Functional soft components were printed on the bottom and top of the soft robot with LM/SA ink by DIW and were used to achieve low-voltage (as low as 1.5 V) Joule heating and to sense the bending deformation of the soft robot with a low response time (about 80 ms), respectively. Then, the photoabsorber Sudan I (0.02 wt %) was added to the commercial photosensitive resin to improve the precision of digital light processing for manufacturing the soft robot body. Through control of the flexible heating circuit to realize the solid–liquid transition of the low-melting-point alloy (47 °C), the stiffness of the soft robot can be changed. This work has great prospects for the design and manufacture of a VSSR with integrated sensing capability.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Taojing Yu,Qiteng Ding,Ning Wang,Shuai Zhang,Zhiqiang Cheng,Chunli Zhao,Qingjie Li,Chuanbo Ding,Wencong Liu
This study aimed to enhance the treatment of bone defects and increase peptide bioavailability. To achieve this, antioxidant-active peptides (DBPs) were extracted from deer antler blood and incorporated into an oxidised sodium alginate/amino gelatine injectable hydrogel (OSA/N-Gel). This bioscaffold was created through the Schiff base reaction, resulting in the development of an injectable hydrogel comprising OSA, amino gelatine, and deer antler blood peptides (OSA/N-Gel/DBP). OSA/N-Gel/DBP is characterised by a loose and porous structure that enhances nutrient flow and confers good degradability, enabling the gradual release of DBP to meet the long-lasting treatment requirements for bone repair. In vitro , 5-Ethynyl-2′-deoxyuridine (EDU), alkaline phosphatase (ALP), and Alizarin Red S (ARS) staining showed the pro-proliferative and pro-mineralising abilities of OSA/N-Gel and OSA/N-Gel/DBP on osteoblasts (MC3T3). OSA/N-Gel/DBP effectively promoted the expression of osteogenesis-related genes, such as ALP and vascular endothelial growth factor (CD31), and deposition of collagen (COL-1), and activated the wingless-related integration site (Wnt) signalling pathway, thereby promoting bone regeneration. The effect of OSA/N-Gel/DBP was significantly superior to that of the OSA/N-Gel group, indicating that DBP has good osteogenic properties. We successfully repaired bone defects and broadened the application of antler blood, thereby providing a novel approach to treating bone defects.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Yanming Yang,Shiqi Song,Xiao Miao,Changqing Zhu,Guina Ren,Bo Ge
Interface evaporators are important in the production of clean water, but problems such as surface oil and soluble contamination remain. In this paper, the structure of an evaporator is optimized, and a superhydrophobic NH 2 -UIO-66/Bi 2 WO 6 floating layer replaces the conventional fix layers. Under the action of the polyaniline hydrogel photothermal layer, the evaporation rate is 2.46 kg•m −2 •h −1 . A mechanism analysis demonstrates that the constructed NH 2 -UIO-66/Bi 2 WO 6 is a Z-type heterojunction, and that •OH, •O 2 − and h + play key roles in the degradation process. The band gap width of Bi 2 WO 6 and NH 2 -UIO-66 is calculated to be 2.85 eV and 2.62 eV, respectively. The constructed polyaniline hydrogel photothermal layer has the ability of rapid water transport, where water droplets can spread quickly within 9 ms, and it gives the evaporator an excellent salt suppression ability. The polyaniline hydrogel did not destroy the polyurethane sponge skeleton with growth, which resulted in its mechanical stability. It is hoped that the construction of such evaporators would provide reference for environmental treatment and clean water production.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xinpeng Li,Ming Foong Tiang,Xiaohu Cui,Yantong Li,Zifan Wang,Lei Zhao,Mohd Sobri Takriff,Mohd Shaiful Sajab,Peer Mohamed Abdul,Gongtao Ding
In this pioneering study, electrostatic spraying (ES) technology with high voltages is proposed to reduce the size of hydrogel microbeads further, aiming to enhance the adsorption rate of cationic methylene blue (MB) dye. The increased voltages, ranging from 0.0 to 13.0 kV, further decreased the size of electrostatically sprayed hydrogel microbeads crosslinked by hydrogen bonds between sodium alginate (SA) and carboxymethyl chitosan (CMCS) in hydrochloric acid. The size of SA/CMCS hydrogel microbeads was successfully reduced from 2000 ± 121 μm (SC-2000) to 400 ± 15 μm (SC-400). Notably, SC-400 exhibits the highest maximum adsorption capacity (q m ) and rate constant (k 2 ) at 840.3 mg/g and 0.0598 g/mg/min, respectively, at pH 9.0 and a temperature of 25 °C in the absence of ionic compounds, which is three times higher than that of SC-2000, due to their high specific surface area and pore volume. Through a series of adsorption studies and characterization analyses, SA/CMCS hydrogel microbeads displayed heterogeneous adsorption behaviors towards MB dye through electrostatic interactions between the deprotonated carboxylic groups and cationic MB molecules, where MB adsorption efficiency could be significantly influenced by pH and ionic strength. These findings suggest that ES technology is effective in synthesizing smaller SA/CMCS hydrogel microbeads with enhanced MB removal rates and stable adsorption capacities and their applications could be further explored for removing other organic dyes and toxic metals in subsequent research studies.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Processes
·
2024
·Vol. 12
·期 4
·842
·
IF 2.8
Yan Li,Yu Ma,Fan Chang,Haiyun Zhu,Chengshan Tian,Fengan Jia,Yang Ke,Jiakun Dai
Using slow-release fertilizer is one of the sustainable strategies to improve the effectiveness of fertilizers and mitigate the environmental pollution caused by excess usage of fertilizer. In this study, a slow-release urea fertilizer with water retention and photosensitivity properties was prepared by a two-step method. It was characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy and an infrared camera. This fertilizer can prolong the release period of urea, improve water-retention capacity of soil, and carry out photothermal conversion under illumination. Comparing four release kinetics models, the Ritger–Peppas model was the best fitting model for releasing behavior in soil, and diffusion followed the Fickian mechanism. The application of fertilizer on winter wheat was carried out to intuitively evaluate the fertilizer’s effects on promoting plant growth and resisting water stress. Thus, this study provides a new strategy for improving fertilizer utilization rate and maintaining soil moisture, which will be beneficial for sustainable agriculture.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Jingya Zhao,Huiqing Zhu,Tenglong Xu,Suyue Xu,Yuxin Wang,Yanwei Hou,Meng Zhuo,Kun Du,Yingyu Su,Xiao Han,Yongli Shi,Xueyan Hou
This study introduced a hydrogel dressing, termed SODex-gel, which was constructed by establishing Schiff base and hydrogen bonds with the precursors of oxidized dextran (ODex) and succinic dihydrazide (SD)-modified sodium alginate (SD-mod-SA). Through comprehensive in vitro and in vivo studies, the adhesive properties, self-healing capabilities, hemostatic potential, and wound healing efficacy of the SODex-gel dressing were meticulously evaluated. The 1H NMR, FTIR, and TGA analyses confirmed the fabrication of the SODex-gel dressing and its constituent elements. Scanning electron microscopy (SEM) imaging showcased the uniform pore structures in the SODex-gel dressing. In vitro assessments demonstrated that the SODex-gel dressing was noncytotoxic and exhibits strong adhesion, enabling it to attach to various surfaces. Noteworthy findings from studies of mouse liver incisions and tail amputation models proved the hemostatic ability of the SODex-gel dressing. Moreover, their remarkable wound-healing capabilities were prominently demonstrated through the treatment of a mouse model afflicted with burn skin injuries. Evidence of neovascularization effects was corroborated by the upregulation of CD31 and vascular endothelial growth factor (VEGF) expression in the treated skin samples. Collectively, the experimental data unequivocally established that the SODex-gel dressing is a promising therapeutic approach to accelerate wound recovery, thereby exhibiting substantial potential for clinical applications in treating burn injuries.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
·
2024
·
IF 5.7
Tao Gai,Jiaolai Jiang,Shaofei Wang,Yiming Ren,Shanli Yang,Zhen Qin,Lang Shao,Qian Wu,Jun Zhang,Junsheng Liao
Background In the fields of environmental monitoring and nuclear emergency, in order to obtain the relevant information of uranyl-induced environmental pollution and nuclear accident, it is necessary to establish a rapid quantitative analytical technique for uranyl ions. As a new promising technique, surface-enhanced Raman scattering (SERS) is hopeful to achieve this goal. However, uranyl ions are easily desorbed from SERS substrates under acidic conditions, and the structures of SERS substrates will be destroyed in the strong acidic aqueous solutions. Besides, the quantitative detection ability of SERS for uranyl ions needs to be promoted. Hence, it is necessary to develop new SERS substrates for accurate quantitative detection of trace uranyl in environmental water samples, especially in acidic solutions. Results In this work, we prepared silver ions/sodium alginate supramolecular hydrogel membrane (Ag + /SA SMH membrane), and the Ag + ions from the membrane were transformed into Ag/Ag 2 O complex nanoparticles under laser irradiation. The Raman signal of uranyl was strongly enhanced under the synergistic interaction of electromagnetic enhancement derived from the Ag nanoparticles and charge transfer enhancement between uranyl and Ag 2 O. Utilizing the peak of SA (550 cm −1 ) as an internal standard, a quantitative detection with a LOD of 6.7 × 10 −9 mol L −1 was achieved due to a good linear relation of uranyl concentrations from 1.0 × 10 −8 mol L −1 to 2 × 10 −6 mol L −1 . Furthermore, foreign metal ions hardly affected the SERS detection of uranyl, and the substrate could determine trace uranyl in natural water samples. Particularly, the acidity had no obvious effect on SERS signals of uranyl ions. Therefore, in addition to the detection of uranyl ions in natural water samples, the proposed strategy could also detect uranyl ions in strong acidic solutions. Significance and novelty A simple one-step method was used to prepare an Ag + /SA SMH membrane for rapid quantitative detection of uranyl ions for the first time. The proposed substrate successfully detected uranyl ions under acidic conditions by immobilizing uranyl ion in hydrogel structure. In comparison with the previous studies, a more accurate quantitative analysis for uranyl ions was achieved by using an internal standard, and the proposed strategy could determine trace uranyl in either natural water samples or strong acidic solutions.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Bioscience
·
2025
·
IF 5.9
Hongyu Jiang,Haonan Gong,Wang Li,Yingxi Chen,Yiwei Dai,Yujiao Zhang,Beiwei Zhu,Sufang Zhang
In this study, a novel protein-polysaccharide based edible film was developed by sodium alginate (SA) incorporating with lactoferrin (LF) and ergothioneine (EGT). A small quantity of LF (0.15% w/v) equipped edible films with excellent moisture protection performance caused by enhanced hydrophobicity, evidenced by the descending water vapor permeability and ascending water contact angle (rising from 38.1° to 74.1°). Meanwhile, the films exhibited strengthened tensile strength and declining moisture content because of the filling of LF. EGT was employed to improve the properties of films as well, which endowed the films with homogeneous microstructure and ultraviolet shielding ability. Notably, the films loaded with EGT witnessed a dramatic growth of DPPH (2,2-diphenyl-1-picrylhydrazyl) inhibition from 8.50% to 64.90% and remained antioxidant active during storage. In this context, the samples containing the EGT-LF complex showed superior physical properties and multiple functional activities against ultraviolet light, bacterium, and oxidation. The analysis aimed at the film-forming solutions and spectrum of films provided a better understanding of the structure of samples: The adhesion of LF on the SA network driven by electric interaction improved the crystallinity of films; whereas EGT reduced the surface charge of LF according to molecular docking model. Overall, these results indicated that LF-assisted SA might be utilized as a promising material for active packaging, while EGT could be adopted to modify the protein/polysaccharide compounds for improved functional features.
✓ 已验证
产品关联
DOI
高影响因子
Applied Materials Today
·
2024
·
IF 7.2
Hao Huang,Minjie Fan,Anchun Yang,Dongbiao Chang,Jinsheng Li,Liwen Yang,Xinlun Li,Mengyuan Wang,Pengfei Zheng,Tailin Guo,Jie Weng
β-tricalcium phosphate (β-TCP) has been widely applied in tissue engineering due to its excellent biocompatibility, degradability, and ability to induce mineralization. Zinc ion (Zn 2+ ) displays excellent antibacterial properties and a vital role in regulating cell metabolism. In this context, the incorporation of Zn 2+ into β-TCP to prepare Zn-doped β-tricalcium phosphate (Zn-β-TCP), emerges as a promising strategy for treating dentin hypersensitivity. However, delivering Zn-β-TCP effectively to the dentin surface for inducing mineralization of dentinal tubules remains a considerable challenge. In this study, we developed a sodium alginate-polyethylene glycol paste loaded with Zn-β-TCP particles, aiming to deliver Zn-β-TCP to the dentin surface for inducing mineralization. Zn-β-TCP particles were synthesized by the hydrothermal method and were combined with a sodium alginate-polyethylene glycol solution to create the Zn-β-TCP/sodium alginate/polyethylene glycol (Zn-β-TCP/SA/PEG) paste. In vitro experiments demonstrated that Zn-β-TCP could induce mineralization, exert good biocompatibility and antibacterial activity, promote dentin differentiation of dental pulp stem cells. Furthermore, Zn-β-TCP/SA/PEG exhibited excellent viscosity and effectively prompted the formation of a mineralized layer on dentin surfaces, successfully blocking dentinal tubules. Taken together, the present study demonstrated the potential of the Zn-β-TCP/SA/PEG paste as a promising therapeutic material for the treatment of dentin hypersensitivity.
✓ 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）