Metabolites
·
2022
·Vol. 12
·期 5
·444
·
IF 5.581
Muhammad Khalid Hameed,Wajid Umar,Ali Razzaq,Tariq Aziz,Muhammad Aamer Maqsood,Shiwei Wei,Qingliang Niu,Danfeng Huang,Liying Chang
Nitrogen (N) is an essential element for plant growth and development. The application of a balanced and optimal amount of N is required for sustainable plant yield. For this, different N sources and forms are used, that including ammonium (NH4+) and nitrate (NO3−). These are the main sources for N uptake by plants where NH4+/NO3−ratios have a significant effect on the biomass, quality and metabolites composition of lettuce grown in soil, substrate and hydroponic cultivation systems. A limited supply of N resulted in the reduction in the biomass, quality and overall yield of lettuce. Additionally, different types of metabolites were produced with varying concentrations of N sources and can be used as metabolic markers to improve the N use efficiency. To investigate the differential metabolic activity, we planted lettuce with different NH4+/NO3−ratios (100:0, 75:25, 50:50, 25:75 and 0:100%) and a control (no additional N applied) in soil, substrate and hydroponic cultivation systems. The results revealed that the 25% NH4+/75% NO3−ratio increased the relative chlorophyll contents as well as the biomass of lettuce in all cultivation systems. However, lettuce grown in the hydroponic cultivation system showed the best results. The concentration of essential amino acids including alanine, valine, leucine, lysine, proline and serine increased in soil and hydroponically grown lettuce treated with the 25% NH4+/75% NO3−ratio. The taste and quality-related compounds in lettuce showed maximum relative abundance with the 25% NH4+/75% NO3−ratio, except ascorbate (grown in soil) and lactupicrin (grown in substrate), which showed maximum relative abundance in the 50% NH4+/50% NO3−ratio and control treatments, respectively. Moreover, 1-O-caffeoylglucose, 1,3-dicaffeoylquinic acid, aesculetin and quercetin-3-galactoside were increased by the application of the 100% NH4+/0% NO3−ratio in soil-grown lettuce. The 25% NH4+/75% NO3−ratio was more suitable in the hydroponic cultivation system to obtain increased lettuce biomass. The metabolic profiling of lettuce showed different behaviors when applying different NH4+/NO3−ratios. Therefore, the majority of the parameters were largely influenced by the 25% NH4+/75% NO3−ratio, which resulted in the hyper-accumulation of health-promoting compounds in lettuce. In conclusion, the optimal N applications improve the quality of lettuce grown in soil, substrate and hydroponic cultivation systems which ultimately boost the nutritional value of lettuce.Keywords:ammonium;lettuce;metabolites;nitrogen;nitrate
研究领域:
农业
·
植物科学
·
代谢组学
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DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Jichao Zhu,Xianli Dong,Kunhao Li,Siyu Tian,Yao Kong,Weitong Chen,Shuping Zhou
In the field of pharmaceutical research and development, the development of nano drug carriers based on intercalation structures has become one of the important development directions. Hydrotalcite (LDHs) and its derivatives have the advantages of low cost, simple synthesis, high drug loading efficiency, good biocompatibility, and easy degradation, and have received widespread attention in the field of biomedicine. Based on this, we synthesized 5-aminosalicylate (5-ASA) intercalated NO 3 based and CO 3 based ZnAl-LDHs drug delivery systems using ion-exchange and chemical co-precipitation methods, respectively. The crystalline structure, morphology, thermal stability, and host-guest interaction were characterized in detail by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Ultraviolet visible spectroscopy (UV), Scanning electron microscopy (SEM), Thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopic (XPS). The drug loading, drug release behavior and release kinetic of 5-ASA intercalated ZnAl-LDHs were studied. The characterization results indicated that the intercalation mode of the drug and the strength of the host-guest interaction are related to the interlayer anion type and synthesis process of ZnAl-LDHs. The amount of 5-ASA loaded into LDHs from an ion-exchange process was 28.6 and 13.8 wt% for NO 3 − and CO 3 2− based LDHs, respectively, whereas it was 6.9 and 10.4 wt% for co-precipitation process. The modeling kinetics results indicated that the release process of 5-ASA by ZnAl-LDHs intercalated with 5-ASA conforms to the parabolic diffusion model. These results indicated that the drug delivery system was controlled by diffusion of 5-ASA ions into aqueous solution through exchange with phosphate anions.
研究领域:
药学
·
纳米医学
·
生物材料
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2015
·
IF 2.288
Qingtang Zhang,Juntao Mei,Xiaolong Xie,Xiaomei Wang,Junyan Zhang
Lithium-rich layer oxide Li 1.2 Ni 0.2 Mn 0.6 O 2 nanoparticles were fabricated through solution combustion synthesis by controlling NO 3 – /CH 3 COO – ratio of the precursors. The relationships between the NO 3 – /CH 3 COO – ratio and structure as well as electrochemical performance of Li 1.2 Ni 0.2 Mn 0.6 O 2 nanoparticles are investigated. XRD reveals that Li 1.2 Ni 0.2 Mn 0.6 O 2 nanoparticles obtained with a suitable NO 3 – /CH 3 COO – ratio of 3:1 (LLO-3N1A) is composed of the smallest nanocrystallite of 18 nm. SEM reflects that the average primary particles of LLO-3N1A are the smallest with a size of 35 nm. Those unique characteristic guarantee the excellent electrochemical performance of LLO-3N1A. LLO-3N1A exhibits a specific capacity of 252.3 mA h g −1 at 0.1 C. In addition, LLO-3N1A also shows best rate capability among the four prepared Li 1.2 Ni 0.2 Mn 0.6 O 2 samples.
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DOI
高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 16
·4845-4853
·
IF 7
Yi-Lei Lv,Lei Huai,Yu-Long Wei,Liang Ma,Yue-Qi Wei,Wenlong Liu,Ru-Ling Tang
Combining multiple anions to design compounds with novel structures and excellent optical properties has become a hot research field. In this paper, a novel nitrate oxyfluoride, Hg3O2(NO3)F, has been obtained. Hg3O2(NO3)F features an unprecedented [(Hg3O2F)+]∞ cationic framework constructed by V-shaped HgO2 units and original HgO2F2 tetrahedra and with isolated NO3− anions balancing the charge. Hg3O2(NO3)F is the first nitrate oxyfluoride containing a d10 metal. Importantly, Hg3O2(NO3)F exhibits superior optical anisotropy with the calculated birefringence of Δn = 0.23 at 1064 nm. Based on the theoretical calculation analyses, the good optical anisotropy is mainly derived from the well-arranged V-shaped HgO2 units. This work proves that the strategy of introducing heteranions is effective for exploring high-performance optical materials.
研究领域:
材料科学
·
无机化学
·
光学材料
·
晶体化学
·
理论物理
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2021
·
IF 5.909
Shuo Yan,Yun Li,Jilin Cao
The calcium nitrate (Ca(NO 3 ) 2 ) waste generated from the production of nitrophosphate fertilizers brings about serious environment and human health issues. Using Ca(NO 3 ) 2 waste and ammonium bicarbonate (NH 4 HCO 3 ) fertilizer as raw materials, higher-value spherical calcite mesocrystals have been synthesized via precipitation method. The synthesis conditions are optimized from the aspects of dispersant, crystal control agent and reaction temperature, and the mechanism that regulates the size and morphology of calcite is illustrated. The synthesized spherical calcite mesocrystals exhibit the small particle size of ca. 5 µm and high specific surface area of 84.44 m 2 /g. Under the dispersion effect of polyvinylpyrrolidone, the adsorption of crystal control agent citric acid on the calcite particles results in the formation of the spherical mesocrystal morphology. The yield of calcite in this process could reach 94.3%. Ca 2+ ion remaining in the mother liquor are further removed in the form of CaCO 3 by addition of calcium oxide , and a mixture of ammonium nitrate and a small amount of NH 4 HCO 3 is obtained by concentrating the filtrate, which can be used as nitrogen fertilizers. This work provides a new insight into the low-cost synthesis of spherical calcite mesocrystals with the high specific surface area and the comprehensive utilization of Ca(NO 3 ) 2 waste.
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产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 40
·14303-14308
·
IF 4
Zhiyuan Zhang,Die Xu,Zhencheng Wu,Mei Hu,Xin Su,Yineng Huang
The combination of π-conjugated groups [NO3] and Cl-centered polyhedra generates a new birefringent crystal with a perovskite-related framework, KRb2(NO3)2Cl, which is the first alkali metal nitrate chloride synthesized by a mild hydrothermal method. It crystallizes in the orthorhombic space group pbam (no. 55). In addition, KRb2(NO3)2Cl crystals with dimensions up to 7 × 1.5 × 1 mm3 were grown. Notably, KRb2(NO3)2Cl has a short UV cut-off edge (below 228 nm) and a significantly enhanced birefringence (Δn = 0.084 at 1064 nm). Theoretical calculations indicate that the birefringence enhancement mainly derives from π-conjugated [NO3] plane triangles.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2021
·Vol. 327
·期 3
·1251-1258
·
IF 1.371
Fu Xuan,Zhang Fang,Wu Qiang,Li Yang,Huang Qing-Gang,Yan Ze-Yi
In this study, extraction and separation of thorium(IV) and a few representative rare earths in HNO 3 media was evaluated using trioctylmethylammonium nitrate ([A336][NO 3 ]) ionic liquid. An unexpected novel extraction mechanism was identified based on the studies in the slope analysis and ESI–MS spectrum. The trimer of [A336][NO 3 ] was confirmed to dominate the extraction reaction by ESI–MS spectrum before and after the extraction. The extraction efficiency of La(III), Eu(III) and Lu(III) by [A336][NO 3 ] are much lower than Th(IV) in acid medium, which means that it is possible to separate thorium from rare earths or the rare earth ores by using [A336][NO 3 ].
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2019
·
IF 7.467
Jie Li,Lin Zhang,Furong Qin,Bo Hong,Qian Xiang,Kai Zhang,Jing Fang,Yanqing Lai
Lithium sulfur battery is deemed to one of the most hopefully useable and cost-effective options beyond traditional lithium ion batteries . Nevertheless, the intermediates shuttle effect and the instability of the lithium metal anode are still the significance of barriers to the actual application of lithium sulfur battery. In this work, zirconium oxynitrate (ZrO(NO 3 ) 2 ), which delivers good thermal stability and little hygroscopicity , is proposed as a dual functional electrolyte additive to ameliorate the electrochemical performance of lithium sulfur batteries. For one thing, the ZrO 2+ cations possess a strong affinity to sulfur, which can catalyze the conversion of dissolved polysulfides to S 8 . For another, ZrO(NO 3 ) 2 is negatively charged in the ether electrolyte because of the coordination ability of ZrO 2+ . It displays a strong repulsion to polysulfides which would effectively trap the dissolved polysulfides and prevent the polysulfides from diffusing into the electrolyte phase. Additionally, NO 3 − anions can be reduced and form a stable passivation film on Li-metal anode, which is beneficial to decrease the reacting activity of Li-metal anode upon polysulfides and stabilizing the surface topography of the Li-metal anode. Ultimately, the ZrO(NO 3 ) 2 electrolyte additive observably enhances the discharge capacity and cycle stability of Lithium sulfur battery.
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DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2014
·
IF 3.674
Xiuquan Jia,Jiping Ma,Min Wang,Zhongtian Du,Fang Lu,Feng Wang,Jie Xu
The promoted effect of Cu(NO 3 ) 2 on aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) catalyzed by VOSO 4 in acetonitrile was intensively investigated. It was revealed that Cu(NO 3 ) 2 facilitated the activation of VOSO 4 to generate active V 5+ species via the generation of NO x gas. The high DFF selectivity is ascribed to Cu 2+ cation which can effectively prohibit oxidative C C bond cleavage reaction of HMF and prevent radical reaction of DFF to humins. In addition, the polarity of solvent plays a great role on high selectivity of DFF.
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产品关联
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2018
·
IF 6.759
Na Tong,Ying Wang,Yang Liu,Minbo Li,Zizhong Zhang,Huijuan Huang,Tao Sun,Jinxiang Yang,Fuying Li,Xuxu Wang
Photocatalytic ammonia synthesis is of great importance but remains very challenging in photocatalysis. Here, we fabricated a photocatalytic reaction system for the efficiently photocatalytic nitrate reduction to ammonia under UV irradiation using PdSn/NiO/NaTaO 3 :La as a photocatalyst in the presence of formic acid. Several important factors of the photocatalytic performance were investigated, including initial concentration of the nitrate solution, initial pH value and cocatalyst loadings. Nitrate conversion reaches 100% and ammonia selectivity is 72% over the optimum photocatalyst with 5% bimetallic PdSn alloy and 0.2% NiO loadings. The outstanding performance of photocatalyst can be ascribed to both the strong adsorption of nitrite on NiO and the efficient separation of electron-hole pairs by PdSn bimetallic alloy. Besides as the hole scavenger, formic acid also provides not only carboxyl anion radicals for nitrate reduction but also the in-situ buffer effect on ammonia formation. These results give inspiration for designing the reactive system with efficient photocatalytic ammonia synthesis.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF THERMOPHYSICS
·
2026
·Vol. 47
·期 8
·141
·
IF 3.6
Li Yan,Tian Lantu,Wang Shuo,Zhu Qunzhi
As the key heat storage and transfer medium in concentrated solar power (CSP) systems, molten salts’ thermophysical properties, such as thermal conductivity, specific heat capacity, and thermal stability, critically determine the systems energy conversion efficiency and economic viability. However, conventional molten salts suffer from low thermal conductivity and limited energy storage density, restricting their application in high-temperature thermal energy storage. Recent advances show that doping with nanoparticles, such as Al 2 O 3 , CuO, and SiO 2 , can significantly improve these properties. Nevertheless, systematic studies on quaternary molten salt systems remain scarce. In this work, we focus on the quaternary eutectic salt H15 (15 wt% Ca(NO 3 ) 2 –5.95 wt% NaNO 3 –45.05 wt% KNO 3 –34 wt% NaNO 2 ), which demonstrates a high decomposition temperature of 597.4 °C alongside a relatively low melting point of 84.4 °C and high thermal energy storage density of 1052.41 kJ/kg. To overcome its thermal performance limitations, Al 2 O 3 nanoparticles (0.1 wt% to 3 wt%) were introduced to form a nanocomposite molten salt. The influence of varying nanoparticle loadings was assessed via DSC, HotDisk, SEM, and XRD to examine corresponding changes in phase transition behavior, thermal conductivity, viscosity, and material microstructure. This study provides theoretical and experimental support for developing high-performance, wide temperature-range thermal energy storage materials for advanced CSP systems.
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产品关联
DOI
高影响因子
SOLID STATE IONICS
·
2021
·
IF 3.785
Ying Yang,Lei Li,Lili Liu,Ying Xiao,Shimou Chen
All-solid-state lithium metal batteries (LMBs) have attracted extensive attention because of their high energy density and good safety performance. But the ionic conductivity at low temperature and dendritic growth hinder their further development. In this work, a flexible all solid-state electrolyte consisted with Ce(NO 3 ) 3 , lithium bis(fluorosulfonyl) imide (LiFSI), and poly(ethylene oxide) (PEO) is synthesized. Ce(NO 3 ) 3 as an effective additive can enhance the ionic conductivity of solid polymer electrolytes (SPEs) by regulating Li + transporting and stabilizing the interface between lithium metal anode and electrolyte by forming a stable and uniform solid electrolyte interphase (SEI) on lithium metal anode surface. The as-prepared electrolyte exhibits a good ionic conductivity of 1.6 × 10 −4 S cm −1 at 60 °C and a wide electrochemical window of 4.4 V . The Li//Li symmetric cell with PEO + LiFSI+1%Ce(NO 3 ) 3 electrolyte displays a long cycling lifespan of over 1100 h at 0.1 mA cm −2 at 60 °C. Moreover, the corresponded LiFePO 4 (LFP)//Li cell exhibits a long cycling lifespan of 300 cycles and excellent rate capability. This work proposes an effective additive to improve ionic conductivity and stabilize the Li metal/electrolyte interface.
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DOI
高影响因子
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