ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Chenjing Qu,Xiaolong Han,Haiyun Wang,Ruidong Wang,Yifei Zhang,Weiwei Sun,Ziqian Shi,Yuting Wang,Penggang Yin
The widespread use of poly(ethylene terephthalate) (PET) has led to severe environmental pollution and significant resource depletion. The depolymerization of waste PET into bis(2-hydroxyethyl) terephthalate (BHET) offers considerable potential for chemical recycling. Although conventional glycolysis faces challenges such as low degradation efficiency and high energy requirements, an efficient catalytic method was developed herein to convert postconsumer PET into BHET under milder conditions. The incorporation of the cosolvent dimethyl sulfoxide (DMSO) into the reaction system reduced the degradation temperature to 150 °C, significantly lower than the temperature observed without cosolvents, which exceeded 190 °C. Under optimized conditions, the combination of a metal catalyst and the organic nitrogen heterocycle 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) enabled complete depolymerization of PET within 90 min, yielding BHET at 80.11%. In addition, the recrystallized product was repolymerized into PET, enabling closed-loop resource recycling. Life cycle assessment (LCA) indicates that this closed-loop approach is not only technically feasible but also environmentally beneficial, reducing energy consumption by approximately 64.54% and greenhouse gas emissions by 37.32%. This strategy offers a practical low-carbon solution for the sustainable recycling of waste PET.
研究领域:
高分子化学
·
催化
·
绿色化学
·
废弃物回收
·
材料科学
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DOI
高影响因子
REPRODUCTIVE TOXICOLOGY
·
2023
·
IF 3.3
Kaiqi Chen,Xiaoqian Lu,Dan Xu,Yu Guo,Ying Ao,Hui Wang
Corn oil, sodium carboxymethyl cellulose (CMC-Na), and dimethyl sulfoxide (DMSO) are widely used as solvents or suspensions in animal experiments, but the effects of prenatal exposure to them on fetal development have not been reported. In this study, Kunming mice were given a conventional dose of corn oil (9.2 g/kg·d), CMC-Na (0.05 g/kg·d) or DMSO (0.088 g/kg·d) during gestation days 10–18, and the pregnancy outcome, fetal physical development, serum phenotype, and multi-organ function changes were observed. The results showed that corn oil decreased serum triglyceride level in males but increased their serum testosterone and CORT levels, and affected female placenta and female/male multi-organ functions (mainly bone, liver, kidney). CMC-Na increased female/male body lengths and tail lengths, decreased serum glucose and total cholesterol levels in males as well as increased their serum LDL-C/HDL-C ratio and testosterone level, decreased female serum bile acid level, and affected male/female placenta and multi-organ functions (mainly bone, liver, hippocampus). DMSO decreased male body weight and serum glucose level, decreased male/female serum bile acid levels, and affected male/female placenta and multi-organs functions (mainly bone, hippocampus, adrenal gland). In conclusion, prenatal exposure to a conventional dose of corn oil, CMC-Na or DMSO could affect fetal physical development and multi-organ functions, and has the characteristics of "multi-pathway, multi-organ and multi-target". This study provides the experimental basis for the rational selection of solvents or suspensions in pharmacology and toxicology studies.
研究领域:
药理学
·
毒理学
·
发育生物学
·
动物科学
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产品关联
DOI
PubMed
高影响因子
Food Bioscience
·
2024
·
IF 4.8
Ying Zhang,Chengdeng Chi,Shuangxia Huang,Xiaoxi Li
Starch-lipid inclusion complexes were used to regulate starch digestibility by changing the binding affinity of digestive enzymes such as α-amylase and α-glucosidase. However, when above a critical aggregation concentration (CAC) of starch and lipid molecules, they tended to self-assemble into double helices or normal micelles respectively, rather than interacting with each other to form starch-lipid complexes. Thus, how to enhance the complexation efficiency under a dense system is the key approach for the improvement of starch bioaccessibility and nutritional function. Herein, based on the dimethyl sulfoxide (DMSO) reverse solvent method, the effect of water/DMSO ratios and starch chain structures on the interaction and assembly behaviors between starch and lecithin molecules in high concentrations were systematically investigated. The results revealed that water/DMSO in a ratio of 1.5:1 promoted the interactions between cavities of starch helices and long alkyl chains of lecithin molecules, with higher level of complexed lecithin content, relative crystallinity (RC), enthalpy (ΔH) (T p ＞100 °C), ordered-aggregation structures and resistant starch (RS) content. In this kind of solvent, starch samples with higher content of amylose and longer chains (degree of polymerization (DP) of B 2 chains and B 3+ chains) is advantageous to the formation of VII-type inclusion starch-lecithin complexes, with a rise in RS from 14.17% to 43.64%. It provided an effective method to modulate starch digestibility under the dense system of starch and lecithin via modulating the water/DMSO ratios and starch fine structures and lay the foundation for the large-scale preparation and application of starch-lecithin complexes.
研究领域:
食品科学
·
生物化学
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Yuyue Yan,Jiaqi Zhang,Ligang Chen,Guanhua Ren,Lu Zhou,Liyuan Liu,Xueqian Zhang,Chunmei Ouyang,Huabin Wang,Jiaguang Han
As a classical cryoprotectant, the cryoprotective mechanism of DMSO remains elusive. In this study, we explore the capability of DMSO to hinder the formation of salt hydrates in the water-DMSO-salt ternary system, given that, at low temperatures, salt hydrates are more prone to attach to surfaces than ice, potentially preventing mechanical damage to cell membranes. Using THz-TDS, we validate the ability of DMSO to suppress salt hydrate formation. Combining IR spectroscopy, we conclude that this inhibitory effect partly arises from the interaction between cations and the S=O groups in DMSO molecules. Semi-quantitative DR spectroscopy provides similar insights from the perspective of molecular reorientation dynamics. Taking into account the intensified ion-dipole interactions due to a higher ion surface charge density, we focus our discussion on MgCl 2 , while NaCl, more akin to biological processes, serves as a reference. Delving into the specific molecular mechanisms, we put forth conjectures regarding the direct interaction between cations and DMSO or the indirect influence of cations on DMSO through the modulation of hydrogen bonds in surrounding water molecules. These research findings contribute to a better understanding and mastery of cryoprotectants.
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DOI
高影响因子
CELLULOSE
·
2016
·Vol. 23
·期 2
·1325-1334
·
IF 3.195
Chen Mingjie,Zhang Xueqin,Zhang Aiping,Liu Chuanfu,Sun Runcang
Lignocellulosic biomass aerogels with relatively high Brunauer–Emmett–Teller (BET) surface area and pore volume were prepared directly from bagasse solutions in the present study. Bagasse was dissolved in DMSO/LiCl, treated with cyclic freezing-thawing processes, and regenerated with water. The resulted bagasse hydrogels were solvent-exchanged to t-butanol and subjected to freeze-drying to obtain the lignocellulosic aerogels. The structure of the aerogels was studied with FTIR, nitrogen absorption, SEM, and XRD. The results showed that the aerogels had sheet-like skeletons interconnected with one another to form three-dimensional networks. The highest BET surface area and total pore volume of the aerogels were 185 m 2 /g and 0.46 cm 3 /g, respectively. By adjusting the concentration of bagasse solution in DMSO/LiCl, the structure of the aerogels could be controlled to some extent.
研究领域:
材料科学
·
生物质能
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Min Liu,Lei Liang,Chaojie Yu,Bingyan Guo,Haitao Zhang,Fanglian Yao,Hong Zhang,Junjie Li
Cell cryopreservation is crucial for biomedicine, and the addition of cryoprotectants (CPAs) to protect cells from cryoinjuries is essential at low temperatures. Trehalose (Tre) has been considered a biocompatible CPA because of its unique physicochemical properties, which could provide cryoprotection to cells during cryopreservation by its interaction with cell membrane phospholipids. Nonetheless, there were few studies on the synthesis of Tre-based CPAs. Here, we reported a feasible solution to further improve the cell cryopreservation efficiency by modifying Tre with sulfoxide functional groups, which enabled dimethyl sulfoxide (DMSO)-free cryopreservation of cells. Compared with unmodified Tre, the sulfoxide-modified Tre (Tre-S) could further protect cells from cryoinjuries. At the optimal CPA concentration (8% Tre-S), the survival rate of L929 cells was up to 88.5% after cryopreservation, and the recovered cells could maintain their normal cell biological behaviors. The differential scanning calorimetry (DSC) and ice recrystallization inhibiting (IRI) tests show that Tre-S has good melting point reduction and IRI activities. Compared with DMSO, the Tre-S had good biocompatibility. This study may provide an alternative method for DMSO-free cell cryopreservation.
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DOI
高影响因子
Polymers
·
2019
·Vol. 11
·期 6
·994
·
IF 3.164
Longming Jin,Jianyun Gan,Gang Hu,Long Cai,Zaiquan Li,Lihua Zhang,Qiang Zheng,Haibo Xie
Cellulose films are regarded as sustainable materials having wide applications in food packaging, separation, etc. Their preparation substantially relies on sufficient dissolution. Herein, various celluloses adequately dissolved in a new solvent system of carbon dioxide,1, 8-diazabicyclo [5.4.0] undec-7-ene and dimethyl sulfoxide (CO2/DBU/DMSO) were made in to films using different regeneration reagents. The films regenerated from ethanol and methanol presented homogeneous and smooth surfaces, while those from 5 wt % NaOH (aq.) and 5 wt % H2SO4(aq.) showed rough surfaces, as analyzed using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The films regenerated from 5 wt % NaOH (aq.) and 5 wt % H2SO4(aq.) rendered cellulose II structures, while those regenerated from alcohols had amorphous structures as evidenced using fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) results. The films made of microcrystalline cellulose had a good light transmittance of about 90% at 800 nm with a tensile strength of 55 MPa and an elongation break of 6.5%, while those from wood pulp cellulose demonstrated satisfactory flexibility with a tensile strength of 91 MPa and an elongation break of 9.0%. This research reports a simple, environmental, and sustainable method to prepare cellulose films of good mechanical properties.Keywords:CO2;cellulose dissolution;cellulose films;regeneration
研究领域:
材料科学
·
环境科学
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产品关联
DOI
PubMed
高影响因子
DYES AND PIGMENTS
·
2023
·
IF 4.5
Xingyun Gao,Yongzhen Wang,Mengjie Wu,Chao Zhi,Jiaguang Meng,Lan Zhang
Smart textiles with highly controllable and tunable color changes have attracted considerable attention because of their promising practical application functionality, such as military clothes, sensors, decorations, and protective purposes like information encryption and alert, including thermochromism , photochromism, electrochromism, etc. Among them, the color variation of stimulus-responsive fabric triggered by electricity is more conveniently and effectively controlled than the color change that relies on stimuli like temperature and ultraviolet radiation. Poly(3,4-ethylenedioxythiophene):poly(styrenesulfo-nate) (PEDOT:PSS) are one kind of the most promising electrochromic materials. Currently, electrochromic fabrics (ECFs) based on PEDOT:PSS is still hindered by relatively poor conductive efficiency and complex structure. Here, we developed a multicolor ECFs with a simplified structure using polyester (PET) fabric, PEDOT:PSS/dimethy sulfoxide (DMSO), ionic liquids as an electrochromic container, a conductive color-changing layer and ion transfer medium, respectively. Therein, PEDOT:PSS enhanced conductivity by changing the conformation with DMSO. The conductive solution PEDOT:PSS/DMSO was coated on the flexible PET substrates and then treated with ionic liquids as a conductive layer and redox reactions functional layer to realize the color-changing. These ECFs exhibited impressive electrochromic behavior with color-changing between light blue and dark blue. Moreover, the device was endowed with hydrophobicity and self-cleaning by spraying commercially available hydrophobic agents. To overcome the monochromatic color-changing capacity of traditional ECFs, subtractive principle was introduced to design multicolor electrochromic fabric. Multicolor electrochromic along with excellent flexibility, stability, and lightweight features, are practical for camouflage applications, such as the reversible yellow-green conversion that can adapt to land and grass fighting scenes. We believe the simple-structured multicolor electrochromic fabric would be promising for flexible display in any textile-based markets, such as adaptive camouflage.
研究领域:
材料科学
·
电子工程
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产品关联
DOI
高影响因子
Journal of Biobased Materials and Bioenergy
·
2014
·Vol. 8
·期 4
·437-443
·
IF 0.586
Wang Wenju,Ren Junli,Li Huiling,Peng Feng,Sun Runcang,Liu Shijie
A feasible and environmental-friendly approach was developed for the dehydration of xylose into furfural using AlCl3-dominant catalysts in a homogeneous DMSO/H2O system. Results showed that the paired chlorides (AlCl3/KCl) in the molar fraction (χAlCl3
)
of 0.6 displayed the better catalytic performance than the single AlCl3 and the other paired chlorides. The influences of catalyst amount, reaction temperatures as well as xylose concentration on the dehydration of xylose into furfural were studied. The effects of co-solvents (DMF,
DMI, DMAC and NMP) on the production of furfural were also investigated. DMSO exhibited the better enhancement effect and the desirable DMSO/water volume ratio was 5:5, indicating DMSO could efficiently suppress the side reaction and enhance the selectivity. The maximum furfural yield of 43.6%
with xylose conversion of 97.9% and the selectivity of 44.6% was achieved at 170°C for 2 h with a total catalyst/xylose molar ratio of 0.5 at the solid to liquid ratio of 1:10.
研究领域:
化学工程
·
生物质转化
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DOI
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
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产品关联
DOI
高影响因子
Nanoscale
·
2025
·
IF 5.1
Zijun Ye,Hao Lei,Peixuan Zhang,Yingying Liu,Yina Liu,Jun Cao,Zhen Wen,Jiwei Jiang,Bin Dong,Xuhui Sun
Wearable electronics for real-time monitoring of the physical status of the human body have been significantly developed recently. However, the substrates of wearable electronics still suffer from the challenge, including weak mechanical properties, low breathability and weak degradation capabilities. Herein, a dimethyl sulfoxide (DMSO)-modified agar organogel (DSAO) with porous microstructures has been reported as a breathable and degradable substrate for wearable electronics. The DASO exhibits excellent mechanical properties, where the fracture strength is as high as 34.21 MPa. In addition, DASO exhibits excellent moisture permeability due to many tiny pores inside and can be degraded in 30 days. The devices constructed on the basis of DSAO exhibit superior pressure resolution with a pressure response of 50 mN, and respond well to different pressure levels and frequencies, which demonstrates potential applications in wearable healthcare monitoring and intelligent robots.
研究领域:
材料科学
·
生物医学工程
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产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2020
·
IF 16.683
Caidi Jin,Ning Xiang,Xiao Zhu,Shuang E,Kuichuan Sheng,Ximing Zhang
5-hydroxymethylfurfural (HMF) can be widely converted into value-added chemicals and fuels production. Herein, we reported a sustainable and efficient approach for synthesizing HMF directly from cellulose. Facile formylation of cellulose with green and recyclable formic acid was developed for cellulose formate (CF) production. CF with special net-like structure and high degree of formyl substitution was prepared. The resultant CF exhibited excellent catalytic conversion and selectivity for HMF production comparable to monomeric glucose as reactant in dimethyl sulfoxide (DMSO)-H 2 O media. In our work, we presented molecular dynamics simulations to elaborate the preferential coordination of DMSO around formyl group, which promoted the solvation of formylated substrate in DMSO-H 2 O mixture, and the HMF yielded could be protected by DMSO without further degradation to levulinic acid or humins.
研究领域:
化学工程
·
可再生能源
·
生物质转化
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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）