SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2018
·
IF 2.88
Yanmei Zhao,Haiyan Yuan,Xinling Zhang,Jidong Yang
An activatable fluorescence monitoring platform based on a novel Maillard reaction product from d -glucose and L-arginine was prepared through a facile one-pot approach and applied for simultaneous detection of d -isoascorbic acid and tartaric acid . In this work, the new Maillard reaction product GLA was first obtained, and its fluorescence intensity can be effectively quenched by KMnO 4 , resulting from a new complex (GLA-KMnO 4 ) formation between GLA and KMnO 4 . Upon addition of d -isoascorbic acid or tartaric acid, an enhanced fluorescence was observed under the optimumed experimental conditions, indicating a stimuli-responsive fluorescence turn on platform for d -isoascorbic acid or tartaric acid can be developed. The corresponding experimental results showed that this turn on fluorescence sensing platform has a high sensitivity for d -isoascorbic acid or tartaric acid, because the detection limits were 5.9 μM and 21.5 μM, respectively. Additionally, this proposed sensing platform was applied to simultaneously detection of d -isoascorbic acid and tartaric acid in real tap water samples with satisfactory results.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
International Journal of Nanomedicine
·
2023
·
IF 8
Beibei Hu,Jianxin Wang,Jing Li,Sanming Li,Heran Li
Purpose The purpose of this research was to study the basic physicochemical and biological properties regarding the application of L-tartaric acid modified chiral mesoporous silica nanoparticle (CMSN) as a drug carrier, and to explore the structure–property relationship of silica-based materials.Methods CMSN with functions of carboxyl modification and chirality was successfully synthesized through co-condensation method, and the basic characteristics of CMSN, including morphology, structure, wettability, degradation, bio-adhesion and retention ability in gastrointestinal tract (GI tract) were estimated by comparing with non-functionalized mesoporous silica nanoparticles (MSN). Meanwhile, the biocompatibility and toxicity of L-tartaric modification were systematically evaluated both in vitro and in vivo through MTT cell viability assay, cell cycle and apoptosis assay, hemolysis assay, histopathology examination, hematology analysis, and clinical chemistry examination.Results CMSN and MSN were spherical nanoparticles with uniform mesoporous structure. CMSN with smaller pore size and carboxyl functional groups exhibited better wettability. Besides, CMSN and MSN could dissolve thoroughly in simulated physiological fluids during a degradation period of 1–12 weeks. Interestingly, the in vitro and in vivo behaviors of carriers, including degradation, bio-adhesion and retention ability in the GI tract were closely related to wettability. As expected, CMSN had faster degradation rate, higher mucosa-adhesion ability, and longer retention time. Particularly, CMSN improved the bio-adhesion property in both gastric mucosa and small intestinal mucosa, and prolonged the GI tract retention time to at least 12 h, which meant higher probability for absorption. The biocompatibility and toxicity examination indicated that CMSN was a kind of biocompatible bio-material with good blood compatibility and negligible toxicity, which is required for further applications in biological fields.Conclusion CMSN with functions of carboxyl modification and chirality had superiority in terms of both physicochemical and biological properties. The in vitro and in vivo behaviors of carriers, including degradation, bio-adhesion, and retention were closely related to wettability.
✓ 已验证
DOI
PubMed
高影响因子
MINERALS ENGINEERING
·
2022
·
IF 5.479
Wenjie Zhang,Yunpeng Du,Xiong Tong,Xian Xie,Dongxia Feng,Qiang Song
As the most important method for the separation and purification of rare earth elements, solvent extraction is widely used in industry. HDEHP (Di(2-ethylhexyl) phosphoric acid) has become the most commonly used organic extractant because of its high separation factor for rare earth elements and large processing capacity. However, the large amount of ammonia nitrogen wastewater generated during the extraction process creates huge pressure on the environment. The tartaric acid complexing agent has been added to the aqueous phase to improve the extraction performance of HDEHP without saponification. This can effectively avoid the generation of ammonia nitrogen wastewater, which is more in line with the concept of green production. In this study, the effect of tartaric acid on the separation of Pr and Nd by HDEHP in hydrochloric acid and the corresponding mechanism are investigated. This study showed that the addition of tartaric acid could significantly increase the separation coefficient of HDEHP for Pr and Nd. When the tartaric acid concentration was 0.4 mol/L and the solution pH was 2.5, the separation coefficient reached β Nd/Pr = 1.85, which was higher than the separation coefficient of HDEHP for Pr and Nd in the saponification system. Combining Fourier-transform infrared spectroscopy, nuclear magnetic spectroscopy other analysis and detection methods, and in-depth exploration of the extraction mechanism, the final extraction of the compound structures was determined.
✓ 已验证
产品关联
DOI
高影响因子
ANALYST
·
2016
·Vol. 141
·期 4
·1257-1265
·
IF 4.033
Guoxin Song,Fulin Zhou,Chunli Xu,Baoxin Li
The ability to recognize and quantify the chirality of alpha-amino acids constitutes the basis of many critical areas for specific targeting in drug development and metabolite probing. It is still challenging to conveniently distinguish the enantiomer of amino acids largely due to the lack of a universal and simple strategy. In this work, we report a strategy for the visual recognition of α-amino acids. It is based on the chirality of L-tartaric acid-capped gold nanoparticles (L-TA-capped AuNPs, ca. 13 nm in diameter). All of 19 right-handed α-amino acids can induce a red-to-blue color change of L-TA-capped AuNP solution, whereas all of the left-handed amino acids (except cysteine) cannot. The chiral recognition can be achieved by the naked eye and a simple spectrophotometer. This method does not require complicated chiral modification, and excels through its low-cost, good availability of materials and its simplicity. Another notable feature of this method is its high generality, and this method can discriminate almost all native α-amino acid enantiomers. This versatile method could be potentially used for high-throughput chiral recognition of amino acids.
✓ 已验证
DOI
高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 5.2
Ziyang Zhang,Wen Wang,Xiaoyang Guo,Jing He,Junwen Xu,Zaihang Zheng,Xin Liu
Nowadays, conventional multi-component flame-retardant systems suffer from numerous challenges, such as multi-component incompatibility, toxic smoke emission, limited recyclability/sustainability, and efficiency problems. Aiming to break through these bottlenecks, the development of single-component, biobased, and high-efficiency flame retardants for silicone rubber (SR) emerged as a promising and pivotal research hotspot. In this paper, a single-component hybrid flame retardant (CCF@PDA@TAM) was prepared via a multi-stage construction strategy using recycled waste Chinese fir (CCF), which was obtained as biochar to serve as an inert synergist, subsequently coated with polydopamine (PDA), and co-deposited by comprising tartaric acid (TTA) and melamine (MEL). When 18 phr of CCF@PDA@TAM was introduced into SR, a limiting oxygen index of 29.5% and a UL-94 V-0 rating were achieved. Additionally, the reduction in PHRR and total heat release rate (THR) reached 30.7% and 29.6%, and the glow-wire flammability index exceeded 960 °C. During the burning tests, non-flame-exposed surface temperature of the SR composites with its structural integrity was reduced by 279 °C. These findings confirmed the exceptional flame retardancy of the SR composites, indicating that the underlying mechanism was ascribed to the synergistic interplay among the thermal insulation barrier of CCF/PDA and the gas-phase effect of MEL/TTA. Moreover, the limitations in mechanical strength of the SR composites were effectively addressed and maintained. Consequently, this study offered an environmentally sustainable and highly effective strategy in simultaneously tackling the critical flame-retardant challenge of SR and efficiently recycling waste biomass materials.
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Caifeng Xia,Qikang Yin,Xinle Sun,Qinglong Liu,Sen Liu,Shuxian Wei,Siyuan Liu,Weifeng Lv,Zhaojie Wang,Xiaoqing Lu
As a unique polymer of intrinsic microporosity, PIM-1 has great potential in mixed matrix membranes (MMMs) for gas separation with ultra-high permeability. However, the separation performance, e.g. CO 2 /N 2 separation, is still limited by its poor selectivity. In this work, PIM-1-based MMMs containing tartaric acid anion intercalated layered double hydroxides (TA-LDH) nanofillers are successfully prepared. The uniformly dispersed TA-LDH in the PIM-1 matrix contributes to optimizing the stacking of polymer chains for accessible pores, which is conducive to CO 2 diffusion. In addition, the assistant experiment and theoretical calculation point out that the -COO - , –OH between the TA-LDH layers had an affinity for CO 2 , creating a two-dimensional fast transport channel between the enlarged interlayer space. Compared with the pristine PIM-1 membrane, the CO 2 permeability and CO 2 /N 2 selectivity of 0.7 % TA-LDH/PIM-1 membrane is increased by 43.19 % and 105.48 %. The excellent gas separation performance with CO 2 permeability of 8343.18 Barrer and CO 2 /N 2 selectivity of 39.02 exceeds the 2019 Robson upper limit. This paves a new way to improve the gas separation performance of PIM-1-based MMMs and suggests high perspectives for real applications.
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Lingli Xu,Jingbo Chen,Jing Zhu,Tianxiang Li,Chaoyun Shi
Recently, SiO 2 has attracted increasing attention as an anode material for lithium-ion batteries (LIBs) owing to its low cost and high theoretical specific capacity. However, its inherent poor conductivity limits its practical application. To address this issue, nanostructured material design is considered an effective solution. Herein, based on the traditional ammonium tartrate template-directed sol-gel method, we use low-cost and easily available L-tartaric acid in place of D, L-tartaric acid to prepare high-yield silica nanotubes (SNTs) with a thin wall (ca. 50 nm), small diameter (ca. 150 nm), rough surface and open ends, as well as tiny spongy-like silica nanoparticles (SNPs) by adjusting the feeding amount and feeding mode of NH 4 OH solution. The electrochemical characterization results suggest that the SNTs show better cyclability and rate performance than the SNPs, which maintain a reversible capacity of 741.3 mAh g −1 after 500 cycles at a current density of 0.4 A g −1 and deliver a high rate capacity of 819.4 mAh g −1 at a high current rate of 2 A g −1 . The excellent electrochemical performance suggests that hollow one-dimensional hollow nanotubes are more efficient in improving the electrochemical performance of SiO 2 than zero-dimensional nanoparticles , and SNTs with thin tube walls and rough surfaces are demonstrated to be fascinating and promising anode materials for LIBs.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Yiyang Zhang,Bo Yu,Wenyuan Guo,Mingzhi Chen,Mingmin Bai,Weixin Li,Jinbo Xue
Tartaric acid creates cooperative S O coordination sites on MoS 2. • Sugarcane bagasse biochar confines and disperses MoS 2 nanosheets. • Spatial confinement accelerates Pb 2+ transport and interfacial enrichment. • DFT confirms strong Pb 2+ binding at S O dual sites with −5.24 eV. Lead (Pb 2+ ) pollution in industrial wastewater poses severe threats to human nervous system and ecological security due to its high toxicity, bioaccumulation and non-biodegradability. Although MoS 2 nanosheets exhibit excellent affinity for Pb 2+ , their adsorption performance is constrained by nanosheet stacking and limited accessible active site separation performance. Herein, tartaric acid (TA)-functionalized MoS 2 nanosheets were confined within a sugarcane bagasse-derived biochar (BC) scaffold to construct TA-MoS 2 /BC. The porous carbon framework suppresses MoS 2 nanosheet restacking and creates accessible mesoporous channels for Pb 2+ transport, while TA introduces oxygen-containing groups that cooperate with sulfur sites for strong Pb 2+ binding. TA-MoS 2 /BC exhibited a high Langmuir adsorption capacity of 1073.27 mg·g −1 , together with a kinetic adsorption capacity of 726.60 mg·g −1 , which was 1.47 and 2.44 times higher than pure TA-MoS 2 and raw biochar, respectively. After five adsorption-desorption cycles, the composite retained 77.8% of its initial adsorption capacity, demonstrating satisfactory reusability. XPS and DFT analyses confirmed that adjacent S/O dual sites dominated Pb 2+ capture, showing a low adsorption energy of −5.24 eV and charge transfer of 1.068 e. Intraparticle diffusion analysis revealed a multi-stage mass-transfer process, and TA-MoS 2 /BC showed the highest initial diffusion rate constant of 48.25 mg·g −1 ·h -1/2 , confirming that the confined porous structure promoted Pb 2+ migration toward internal active sites. This work provides a confinement-coordination dual-regulation strategy for Pb 2+ removal while offering a value-added route for converting sugarcane bagasse waste into a functional carbon scaffold.
✓ 已验证
DOI
高影响因子
POLYMER
·
2025
·
IF 4.5
Mingxuan Yu,Jiaqi Li,Mengyao Zhang,Xin Song,Chao Zhou,Li Liu,Guangfeng Wu
Bio-based waterborne polyurethane (WPU) has been instrumental in enhancing the adhesion between carbon fibers (CF) and the epoxy resin matrix (EP). However, conventional waterborne polyurethane sizing agents are susceptible to photochemical oxidation and degradation under prolonged ultraviolet (UV) exposure, leading to a gradual decline in interfacial properties. This instability limits their effectiveness in extreme environments. In this study, a novel carbon fiber sizing agent based on hyperbranched bio-based waterborne polyurethane zinc (WPUZ) was developed. By incorporating tartaric acid (TA) and zinc oxide (ZnO) through a chelation strategy, the CF/EP composites achieved simultaneous interfacial reinforcement and UV protection. Fourier transform infrared (FTIR) spectroscopy confirmed the formation of stable zinc carboxylate (-COO - Zn 2+ ) bonds between TA and ZnO, preventing ZnO nanoparticle aggregation and improving dispersion within the waterborne polyurethane matrix. Mechanical testing revealed that WPUZ-treated CF/EP composites exhibited significant improvements, with interfacial shear strength (IFSS), interlaminar shear strength (ILSS), and three-point bending strength increasing by 93.92 %, 46.00 %, and 53.42 %, respectively. Furthermore, UV aging tests demonstrated that after one week of xenon lamp exposure, the ILSS of WPUZ-treated composites remained above 92 %, far exceeding the performance of untreated and pure WPU-sized composites. These results highlight the effectiveness of WPUZ in enhancing both mechanical durability and UV resistance in CF/EP composites.
✓ 已验证
产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2025
·Vol. 27
·期 9
·2538-2553
·
IF 9.2
Yadan Luo,Linlin Liang,Huaying Luo,Fanyan Zeng,Chengrong Qin,Chen Liang,Baojie Liu,Caoxing Huang,Shuangquan Yao
Lignin nanoparticles (LNPs) address the challenges associated with the complex chemical structure and high molecular weight of lignin, thereby facilitating green value-added transformations. However, the heterogeneity of lignin significantly influences the self-assembly behavior of LNPs. To obtain lignin with optimal performance for the preparation of LNPs, a novel deep eutectic solvent (DES) featuring a robust hydrogen bond network (choline chloride/tartaric acid-FeCl3, CC/TA-FeCl3) was developed in this study. Extracted lignin exhibited a higher phenolic hydroxyl content and lower molecular weight. Specifically, the phenolic hydroxyl content (2.90 mmol g−1) increased by 15.54% compared to that extracted using (CC/lactic acid-FeCl3 (CC/LA-FeCl3)). Amphiphilic nanoparticles were synthesized via layer-by-layer self-assembly utilizing van der Waals forces and π–π interactions. They had a narrow particle size distribution (21–76 nm) and a small average particle size (35.33 nm). They exhibited a highly negative zeta potential of −31.25 mV and demonstrated effective free radical scavenging efficiency (79.87%). The water dispersion stability over 72 h was improved by 200%. The LNPs significantly enhanced the UV resistance (80%), tensile strength (72%), and hydrophobic characteristics (125%) of PVA films. LNPs/PVA film provides the feasibility for the high-quality development of green agriculture. These results provide a new approach for the green transformation of lignin through the preparation of efficient extraction and preparation of high-performance LNPs.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）