ACS Applied Materials & Interfaces
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2017
·
IF 7.504
Lei Chen,Yanming Zhao,Shenghong Liu,Long Zhao
Although the NASICON-type of Na3V2(PO4)3 is regarded as a potential cathode candidate for advanced sodium-ion batteries (SIBs), it has an undesirable rate performance and low cyclability, which are a result of its poor electronic conductivity. Here, we utilized conductive polyaniline (PANI) grown in situ to obtain the hard carbon-coated porous Na3V2(PO4)3@C composite (NVP@C@HC) with a typically simple and effective sol–gel process. Based on the restriction of double carbon layers, the NVP size decreases distinctly, which can curtail the sodium-ion diffusion distance and enhance the electronic conductivity. As expected, the product displays good discharge capacity (111.6 mA h g–1 at 1 C), outstanding rate capacity (60.4 mA h g–1 at 50 C), and remarkable cycling stability (63.3 mA h g–1 with a retention of 83.3% at 40 C over 3000 cycles). Also, it performs a long-term cycling capacity of 58.5 mA h g–1 exceeding 15 000 cycles at 20 C (with a capacity loss of 0.24% per cycle).
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Food Bioscience
·
2024
·
IF 4.8
Haibo Lou,Jian Wang,Yaping Wang,Yongdong Gao,Wei Wang
In this study, the probiotic characteristics of Enterococcus faecalis SN21-3 were explored by genotype and phenotype, and the safety of this strain was evaluated in vitro and vivo . The complete genome sequence of E. faecalis SN21-3 revealed basic genetic information and corresponding genes underlying its probiotic characteristics. In vitro experiments were performed with E. faecalis SN21-3, which showed prominent antimicrobial activity and excellent abilities of resistance to simulated gastrointestinal fluid, cholesterol assimilation, adhesion, and antioxidant. In addition, E. faecalis SN21-3 was susceptible to the most common antimicrobial agents, did not contain transferable resistance gene and pathogenic gene, and did not perform haemolysis reactions and gelatinase activity in vitro . Furthermore, in vivo experiments demonstrated that feeding E. faecalis SN21-3 to broilers for 28 days did not significantly affect their normal growth or blood biochemistry parameters. Moreover, H&E staining showed no evidence of lesions in the heart, liver, spleen, or kidney of the broilers. No migration of E. faecalis SN21-3 was observed in the heart, liver, spleen, kidney, or blood samples during the feeding trial, indicating that the bacteria did not cause infections. In summary, E. faecalis SN21-3 exhibits numerous probiotic characteristics and is sufficiently safe for use as a novel animal probiotic.
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Materials Today Chemistry
·
2025
·
IF 6.7
Ping Liang,Yihao Zheng,Xiaoyan He,Xiaoli Peng,Weilan Huang,Beichen Ying,Xuejie Zhang,Chaofan Hu,Bingfu Lei,Yingliang Liu,Jianle Zhuang
Carbon dot (CD)-based room-temperature phosphorescent (RTP) materials have aroused wide attention owing to their excellent photophysical properties. However, the reports of RTP CDs in information encryption and erasure applications are limited. Herein, a new-type of CD-based RTP material is constructed by incorporating the fluorescent CDs into yttrium hydroxide matrix (CDs@Y(OH) 3 ). For the first time, the Y(OH) 3 as a rigid matrix is used to stabilize the triplet state of the CDs and protect the CDs from oxygen. Furthermore, the intramolecular motions of the CDs are limited, due to the space confinement of the Y(OH) 3 matrix and the formation of hydrogen bonds, thus effectively suppressing the non-radiative transition of triplet excitons and promoting phosphorescence emission. Based on superior optical performance, the CDs@Y(OH) 3 composites are successfully applied in information encryption, and decryption. In addition, by destroying the Y(OH) 3 matrix with acetic acid spray, the phosphorescence is invalidated and the information is erased after decryption. This finding not only provides a new strategy for the preparation of CD-based RTP materials but also reveals the great potential of CDs in information security and protection.
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NEW JOURNAL OF CHEMISTRY
·
2012
·Vol. 36
·期 6
·1335-1338
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IF 2.605
Sa Huang,Jianhua Liu,Di Liu,Qinghai Yuan
We report the facile and scalable synthesis of a highly monodispersed inorganic nanostructure based on well-designed Gd(OH)3 nanorods. X-Ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), as well as energy-dispersive spectroscopy (EDS) were applied to characterize the samples, indicating that the nanomaterials with an average length of 100 nm and an average diameter of 15 nm showed a typical hexagonal phase. Biocompatibility tests were performed from in vitro cell experiments to in vivo long-term histological assessment, indicating that the Gd(OH)3 nanorods were promising for further bio-related application. Owing to the excellent paramagnetic behavior, we further investigated the capability of the nanorods as MRI contrast agent. Compared with the conventional Gd–DTPA complex, the well-designed Gd(OH)3 nanorods present a higher T1 relaxation rate, showing more potential for biomedicine applications.
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MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 7
·1-8
·
IF 5.3
Han Lei,Cai Shuanglong,Chen Xiaogeng
The development of an ultrasensitive and precise measurement of a breast cancer biomarker (cancer antigen 15-3; CA15-3) in complex human serum is essential for the early diagnosis of cancer in groups of healthy populations and the treatment of patients. However, currently available testing technologies suffer from insufficient sensitivity toward CA15-3, which severely limits early large-scale screening of breast cancer patients. We report a versatile electrochemical immunoassay method based on atomically cobalt-dispersed nitrogen-doped carbon (Co-NC)–modified disposable screen-printed carbon electrode (SPCE) with alkaline phosphatase (ALP) and its metabolite, ascorbic acid 2-phosphate (AAP), as the electrochemical labeling and redox signaling unit for sensitive detection of low-abundance CA15-3. During electrochemical detection by differential pulse voltammetry (DPV), it was found that the Co-NC-SPCE electrode did not have a current signal response to the AAP substrate; however, it had an extremely favorable response current to ascorbic acid (AA). Based on the above principle, the target CA15-3-triggered immunoassay enriched ALP-catalyzed AAP produces a large amount of AA, resulting in a significant change in the system current signal, thereby realizing the highly sensitive detection of CA15-3. Under the optimal AAP substrate concentration and ALP catalysis time, the Co-NC-SPCE-based electrochemical immunoassay demonstrated a good DPV current for CA15-3 in the assay interval of 1.0 mU/mL to 10,000 mU/mL, with a calculated limit of detection of 0.38 mU/mL. Since Co-NC-SPCE has an excellent DPV current response to AA and employs split-type scheme, the constructed electrochemical immunoassay has the merits of high preciseness and anti-interference, and its clinical diagnostic results are comparable to those of commercial kits. Graphical abstract
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2015
·Vol. 132
·期 22
·
IF 1.768
Jiaxuan Feng,Hongjun Zang,Qing Yan,Mingguang Li,Xinqiang Jiang,Bowen Cheng
1-Carboxymethyl-3-methylimidazolium hydrochloride ([IMIM–COOH]Cl), a new ionic salt, is proposed as a green, promising solvent for dissolving chitosan. However, because of the optimal dosage of chitosan dissolved in [IMIM–COOH]Cl, a 12 wt % [IMIM–COOH]Cl aqueous solution was selected as an optimum solvent system for dissolving chitosan. The structures of the original and regenerated chitosan were characterized by Fourier transform infrared spectroscopy and X-ray diffraction analysis. Scanning electron microscopy was used to visualize the morphological features of the reconstituted chitosan membranes. Meanwhile, the absorbance, tensile strength, and breaking elongation of the chitosan membranes were measured. The results reveal that 10–11 wt % was an optimal chitosan concentration for preparing membranes. Furthermore, the adsorption capacity for Cu(II) ion of the chitosan membranes was increased with the chitosan concentration decreased from 12 to 8 wt %. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41965.
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Scientific Reports
·
2017
·Vol. 7
·期 1
·1-10
·
IF 4.259
Yang Li,Cai Tianming,Ding Dahu,Cai Tianjin,Jiang Canlan,Li Hua,Yang Qian,Chen Liwei
2-hydroxy-1,4 naphthoquinone (lawsone) is widely used and induces environmental pollutions during its production and application. In the present study, a lawsone-degrading bacterium strain, LH-3 was successfully isolated from the activated sludge. Based on the 16S rRNA gene analysis, the strain LH-3 phylogenetically belonged to the Pseudomonas taiwanensis . It could degrade 200 mg L −1 lawsone completely in 9 h with an inoculum quantity of 1% (v/v). The effects of environmental conditions on the degradation process and the degradation pathway were systematically investigated. LH-3 could maintain its high degradation efficiency under high salt condition. The identified intermediates of salicylic acid, 2-hydroxy-4-oxo-chroman-2-carboxylic acid, and catechol elucidated the potential degradation pathway. Furthermore, the immobilized LH-3 strain cells prepared with alginate gel and biochar performed excellent stability in nine successive degradation runs. It could sucessfully survive in laboratory scale sequencing batch reactor and become to be the dominant species. This study clearly revealed that LH-3 could serve as an attractive candidate for the microbial remediation of lawsone-containing wastewater.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2017
·
IF 3.671
Chen Bao,Hongliang Zeng,Yi Zhang,Longtao Zhang,Xu Lu,Zebin Guo,Song Miao,Baodong Zheng
In order to investigate the effects of different preparation methods on Semen coicis resistant starch, the structural properties and prebiotic effects of autoclaving treatment–purified S. coicis resistant starch (GP-SRS3), ultrasonic-autoclaving treatment–purified S. coicis resistant starch (UP-SRS3), enzyme-autoclaving treatment–purified S. coicis resistant starch (EP-SRS3) and microwave-moisture treatment–purified S. coicis resistant starch (MP-SRS3) were studied compared to high-amylose maize starch (HAMS). Fourier transform infrared spectroscopy and Solid-state 13 C NMR spectroscopy showed all of SRS3 displayed B-type crystallite structure, furthermore, MP-SRS3 and UP-SRS3 showed higher degree of ordered structure and degree of double helical structure compared to other samples. Field emission scanning electron microscopy showed MP-SRS3 displayed deeply layered strips and UP-SRS3 exhibited some cavities. Moreover, S. coicis resistant starch could promote the growth of Bifidobacteria adolescentis better compared to high-amylose maize starch, among these samples. MP-SRS3 exhibited best prebiotic effect, which was possible attributed to its rough surface and double helix structure. B. adolescentis displayed a higher survival rate to the simulated gastrointestinal tract environment in SRS3 medium than that in high-amylose maize starch medium, especially MP-SRS3 and UP-SRS3, which partly contributed to its strips and cavities. Overall, MP-SRS3 could be regarded as a potential prebiotic to promote the growth of B. adolescentis for its structural trait.
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INORGANICA CHIMICA ACTA
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2017
·
IF 2.002
Jie Chai,Yanfei Liu,Jinglong Dong,Bin Liu,Binsheng Yang
The worldwide use of chromium(III) picolinate Cr(pic) 3 as nutrition additives has aroused more and more controversies. To reevaluate the safety and validity of Cr(pic) 3 , seven new derivatives Cr(R-pic) 3 (pic = picolinic acid, R = H ( 1 ), 5-Br ( 2 ), 5-CF 3 ( 3 ), 4-Cl ( 4 ), 5-COOH ( 5 ), 3-CH 3 ( 6 ), 5-OH ( 7 ), 3-OH ( 8 )) were synthesized and characterized by X-ray crystal diffraction, ESI-MS, IR and elemental analysis. It was found that different substituent group affected physicochemical activities of the complex such as the Fenton-like reaction and oxidation reaction. Especially, –OH group derivatives lose their hydroxyl radical-generation and Cr(VI)-generation abilities comparing with halogen group in tube experiment. Even so, these differences in chemistry properties may be ignored in live cells and animal tests: no obvious cellular damage (MTT assay) and tissue injury (acute toxicity study) were observed for both Cr(pic) 3 and its derivatives. In addition, hypoglycemic activity study indicated that these Cr(III) complexes have no significant influence than CrCl 3 salt on the blood glucose, serum insulin, total cholesterol, triglyceride, high density lipoprotein and low density lipoprotein of diabetic mice through two months’ study. Therefore, these substituent group is unable to improve the biological activities of Cr(pic) 3 obviously and the validity of Cr(pic) 3 used as a nutrition additives is doubted.
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BIOMATERIALS
·
2017
·
IF 8.402
Na Zhao,Baoyan Wu,Xianglong Hu,Da Xing
Stimuli-responsive nanoparticles with multiple therapeutic/diagnostic functions are highly desirable for effective tumor treatment. Herein novel caspase-3 responsive functionalized upconversion nanoparticles (CFUNs) were fabricated with three-in-one functional integration: near-infrared (NIR) triggered photodynamic damage along with caspase-3 activation, subsequent caspase-3 responsive drug release, and cascade chemotherapeutic activation. CFUNs were formulated from the self-assembly of caspase-3 responsive doxorubicin (DOX) prodrug tethered with DEVD peptide (DEVD-DOX), upconversion nanoparticles (UCNP), a photosensitizer (pyropheophorbide-a methyl ester, MPPa), and tumor-targeting cRGD-PEG-DSPE to afford multifunctional CFUNs, MPPa/UCNP-DEVD-DOX/cRGD. Upon cellular uptake and NIR irradiation, the visible light emission of UCNP could excite MPPa to produce reactive oxygen species for photodynamic therapy (PDT) along with the activation of caspase-3, which further cleaved DEVD peptide to release DOX within tumor cells, thus accomplishing NIR-triggered PDT and cascade chemotherapy. CFUNs presented silent therapeutic potency and negligible cytotoxicity in the dark, whereas in vitro and in vivo experiments demonstrated the NIR-triggered cascade therapeutic activation and tumor inhibition due to consecutive PDT and chemotherapy. Current NIR-activated cascade tumor therapy with two distinct mechanisms is significantly favorable to overcome multidrug resistance and tumor heterogeneity for persistent tumor treatment.
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PLoS One
·
2016
·Vol. 11
·期 7
·e0159802
·
IF 3.057
Zhujian Huang,Pingxiao Wu,Beini Gong,Yaping Dai,Pen-Chi Chiang,Xiaolin Lai,Guangwei Yu
To achieve a satisfactory removal efficiency of heavy metal ions from wastewater, silane-functionalized montmorillonite with abundant ligand-binding sites (-NH 2 ) was synthesized as an efficient adsorbent. Ca-montmorillonite (Ca-Mt) was functionalized with 3-aminopropyl triethoxysilane (APTES) to obtain the APTES-Mt products (APTES 1.0CEC -Mt, APTES 2.0CEC -Mt, APTES 3.0CEC -Mt, APTES 4.0CEC -Mt) with enhanced adsorption capacity for Co 2+ . The physico-chemical properties of the synthesized adsorbents were characterized by spectroscopic and microscopic methods, and the results demonstrated that APTES was successfully intercalated into the gallery of Ca-Mt or grafted onto the surface of Ca-Mt through Si-O bonds. The effect of solution pH, ionic strength, temperature, initial concentrations and contact time on adsorption of Co 2+ by APTES-Mt was evaluated. The results indicated that adsorption of Co 2+ onto Ca-Mt, APTES 1.0CEC -Mt and APTES 2.0CEC -Mt can be considered to be a pseudo-second-order process. In contrast, adsorption of Co 2+ onto APTES 3.0CEC -Mt and APTES 4.0CEC -Mt fitted well with the pseudo-first-order kinetics. The adsorption isotherms were described by the Langmuir model, and the maximum adsorption capacities of APTES 1.0CEC -Mt, APTES 2.0CEC -Mt, APTES 3.0CEC -Mt and APTES 4.0CEC -Mt were 25.1, 33.8, 61.6, and 61.9 mg·g -1 , respectively. In addition, reaction temperature had no impact on the adsorption capacity, while both the pH and ionic strength significantly affected the adsorption process. A synergistic effect of ion exchange and coordination interactions on adsorption was observed, thereby leading to a significant enhancement of Co 2+ adsorption by the composites. Thus, APTES-Mt could be a cost-effective and environmental-friendly adsorbent, with potential for treating Co 2+ -rich wastewater.
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JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
·
2016
·Vol. 97
·期 5
·1475-1481
·
IF 2.076
Jianxia Sun,Xinghua Li,Xinyu Lin,Zhouxiong Mei,Yitao Li,Lijun Ding,Weibin Bai
BACKGROUND As an alternative preservation method for thermal treatment, ultrasound comprises a novel non-thermal processing technology that can significantly avoid undesirable nutritional changes. However, the recent literature indicates that anthocyanin degradation occurs when ultrasound is applied in juice at high amplitude parameters. Such work has mainly focussed on the effect of ultrasound on stability, the antioxidant capacity of cyanidin-3-glucosylrutinoside (Cy-3-glc-rut) and the correlation between anthocyanin degradation and ·OH generation in a simulated system. RESULTS The spectral intensities of Cy-3-glc-rut at 518 and 282 nm decreased with increasing ultrasound power and treatment time. The degradation of Cy-3-glc-rut was consistent with first-order reaction kinetics ( r 2 > 0.9000) and there was a good linear correlation between anthocyanin degradation and hydroxyl radical formation induced by ultrasound ( r 2 = 0.9258). Moreover, a decrease in the antioxidant activity of Cy-3-glc-rut after ultrasound evaluated by the 1,1-diphenyl-2-picrylhydrazyl and ferric reducing antioxidant power methods was observed. CONCLUSION Overall, the results of the present study show that ultrasound will accelerate the degradation of Cy-3-glc-rut with the growth of power over time. © 2016 Society of Chemical Industry
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危险品化学品经营许可证（带存储）