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1. Metal organic framework-assisted in-situ synthesis of β-NiMnOOH nanosheets with abundant NiOOH active sites for efficient electro-oxidation of urea

Author:
Xiaodong Yan; Li Xiang; Wen-Da Zhang; Hanwen Xu; Yang Yao; Jiangyong Liu; Zhi-Guo Gu
Source:
Journal of colloid and interface science 2023 v.629 pp. 370-378
ISSN:
0021-9797
Subject:
urea,   etc   ; catalysts; catalytic activity; coordination polymers; electrodes; hydrogen; nanosheets; oxidation;     Show all 8 Subjects
Abstract:
... NiOOH has been considered as the active center for urea oxidation reaction (UOR), but it remains challenging to synthesize high-performance NiOOH-based catalysts. Herein, we realize the synthesis of a high-performance NiOOH-based catalyst through in-situ transformation from the NiMn-based metal–organic framework to NiMnOOH. X-ray photoelectron spectroscopy characterization shows that the Ni³⁺/Ni²⁺ ...
DOI:
10.1016/j.jcis.2022.08.155

2. Enhancing the surface polarization effect via Ni/NiMoOx heterojunction architecture for urea-assisted hydrogen generation

Author:
Guoqiang Liu; Zhongti Sun; Dongming Liu; Yongtao Li; Weixin Zhang
Source:
Journal of colloid and interface science 2023 v.629 pp. 1012-1020
ISSN:
0021-9797
Subject:
urea,   etc   ; density functional theory; electric potential difference; hydrogen production; nanoparticles; nanorods; oxidation; oxygen production;     Show all 8 Subjects
Abstract:
... Electrocatalytic urea oxidation (UOR) has attracted significant interest as a promising anodic half-reaction to replace sluggish oxygen evolution reaction (OER) toward water splitting. However, the activation and decomposition of urea molecule maintains a challenge during electrocatalytic process because of its 6e⁻ oxidation procedure. Herein, Ni nanoparticles decorated NiMoOₓ nanorod (Ni/NiMoOₓ) ...
DOI:
10.1016/j.jcis.2022.09.030

3. Efficient photohydrogen production by edge-modified carbon nitride with nonmetallic group

Author:
Jingsai Cheng; Chunmei Li; Zhiyong Yu; Hanxing Liu
Source:
Journal of colloid and interface science 2023 v.629 pp. 739-749
ISSN:
0021-9797
Subject:
urea,   etc   ; carbon nitride; density functional theory; energy; graphene; hydrogen; hydrogen production; photocatalysis; photocatalysts; polymerization; wavelengths;     Show all 11 Subjects
Abstract:
... As an efficient photocatalyst, graphitic carbon nitride (g-C₃N₄) has been widely used in the field of photocatalytic hydrogen production. However, how to prepare hydrogen efficiently and stably has become a challenge. Herein, we successfully realize metal-free edge modification with phenyl groups by one-step thermal polymerization of urea with 4-phenyl-3-thiosemicarbazide. Consequently, the optima ...
DOI:
10.1016/j.jcis.2022.09.121

4. Coumarin-based derivatization reagent for LC-MS analysis of amino acids

Author:
Nguyễn Kim Ngân Bùi; Sigrid Selberg; Koit Herodes; Ivo Leito
Source:
Talanta 2023 v.252 pp. 123730
ISSN:
0039-9140
Subject:
urea,   etc   ; coumarin; derivatization; electrospray ionization mass spectrometry; fluorescence; high performance liquid chromatography; tandem mass spectrometry; wavelengths;     Show all 8 Subjects
Abstract:
... In this paper, we report about the application of a sensitive fluorescent derivatization reagent Coumarin151-N-Hydroxysuccinimidyl Carbamate (Cou151DSC) for amino compounds using high-performance liquid chromatography (HPLC) compatible with ultraviolet (UV), fluorescence detector (FLD) and electrospray ionization - tandem mass spectrometry (ESI-MS/MS)―positive mode. We optimized derivatization pro ...
DOI:
10.1016/j.talanta.2022.123730

5. Chitosan microspheres-based controlled release nitrogen fertilizers enhance the growth, antioxidant, and metabolite contents of Chinese cabbage

Author:
Jiahua Ma; Yahya Faqir; Yunlong Chai; Sanmei Wu; Tong Luo; Shiyu Liao; Abdul Rasheed Kaleri; Chengjia Tan; Yuxin Qing; Mohammad Talib Kalhoro; Niaz Umer; Wazir Hadir
Source:
Scientia horticulturae 2023 v.308 pp. 111542
ISSN:
0304-4238
Subject:
urea; urea fertilizers,   etc   ; Chinese cabbage; Fourier transform infrared spectroscopy; antioxidants; cell respiration; chitosan; crosslinking; denitrification; economic sustainability; electron microscopy; emulsifying; evaporation; flavonoids; fluorescence; irrigation; leaf length; metabolites; microparticles; nitrogen; photosynthesis; plant growth; plant height; polyphenols; porosity; runoff; seed germination; stomatal conductance; sugars; surface water; volatilization; water flow;     Show all 32 Subjects
Abstract:
... Agriculture lands have low fertilizer retention owing to porosity and irrigation, whereas a significant portion of fertilizer is lost through denitrification, volatilization, surface run-off, and leaching, causing losses of nutrients to air and ground/surface water. Urea fertilizer readily enhances the agricultural yield but also deteriorates the quality of fertile soils. To combat such problems, ...
DOI:
10.1016/j.scienta.2022.111542

6. In vivo investigation of the inhibitory effect of Peganum harmala L. and its major alkaloids on ethylene glycol-induced urolithiasis in rats

Author:
Summya Rashid; Maryam Sameti; Mohammed H. Alqarni; Fatma M. Abdel Bar
Source:
Journal of ethnopharmacology 2023 v.300 pp. 115752
ISSN:
0378-8741
Subject:
urea; urea nitrogen,   etc   ; Peganum harmala; antioxidants; blood serum; body weight; butanol; calcium; catalase; chromatography; creatinine; ethylene; ethylene glycol; fruits; glutathione; glutathione peroxidase; glutathione-disulfide reductase; histopathology; kidneys; magnesium; malondialdehyde; medicinal plants; oxalates; oxidative stress; pH; pets; phosphates; renal calculi; sedatives; therapeutics; toxicity; traditional medicine; uric acid; urine; wastes;     Show all 35 Subjects
Abstract:
... Peganum harmala L. is a traditional medicinal plant used for centuries in folk medicine. It has a wide array of therapeutic attributes, which include hypoglycemic, sedative, anti-inflammatory, and antioxidant properties. The fruit decoction of this plant was claimed by Avicenna as traditional therapy for urolithiasis. Also, P. harmala seed showed a clinical reduction in kidney stone number and siz ...
DOI:
10.1016/j.jep.2022.115752

7. The polyoxometalates mediated preparation of phosphate-modified NiMoO4−x with abundant O-vacancies for H2 production via urea electrolysis

Author:
Yunfeng Qiu; Xiaofan Dai; Yanping Wang; Xinyang Ji; Zhuo Ma; Shaoqin Liu
Source:
Journal of colloid and interface science 2023 v.629 pp. 297-309
ISSN:
0021-9797
Subject:
urea,   etc   ; activation energy; ambient temperature; cleavage (chemistry); electric potential difference; electric power; electrodes; electrolysis; foams; hydrogen production; nanomaterials; oxidation; oxygen production;     Show all 13 Subjects
Abstract:
... It is urgent to develop non-noble metal electrocatalysts with both excellent activity and durable stability for H₂ production via water electrolysis. Electric energy is mainly consumed by the sluggish anodic oxygen evolution reaction (OER). The electrocatalytic urea oxidation reaction (UOR) has been regarded as a promising reaction to replace OER because of its small thermodynamic oxidation potent ...
DOI:
10.1016/j.jcis.2022.08.145

8. Distinct arsenic uptake feature in rice reveals the importance of N fertilization strategies

Author:
Gongning Chen; Yanhong Du; Liping Fang; Xiangqin Wang; Chuanping Liu; Huanyun Yu; Mi Feng; Xi Chen; Fangbai Li
Source:
Science of the total environment 2023 v.854 pp. 158801
ISSN:
0048-9697
Subject:
urea,   etc   ; ammonium bicarbonate; ammonium nitrogen; arsenic; bioavailability; biogeochemistry; environment; iron; methylation; nitrate nitrogen; nitrates; nitrogen; nitrogen fertilizers; oxidation; paddies; rice; saltpeter; soil;     Show all 18 Subjects
Abstract:
... The environmental behavior of arsenic (As) is commonly affected by the biogeochemical processes of iron (Fe) and nitrogen (N). In this study, field experiments were conducted to explore As uptake in rice and As translation and distribution in As-contaminated iron-rich paddy soils after applying different forms of N fertilizers, including urea (CO(NH₂)₂), ammonium bicarbonate (NH₄HCO₃), nitrate of ...
DOI:
10.1016/j.scitotenv.2022.158801

9. Amorphous chromium oxide confined Ni/NiO nanoparticles-assembled nanosheets for highly efficient and stable overall urea splitting

Author:
Hanwen Xu; Wen-Da Zhang; Yang Yao; Jingguo Yang; Jiangyong Liu; Zhi-Guo Gu; Xiaodong Yan
Source:
Journal of colloid and interface science 2023 v.629 pp. 501-510
ISSN:
0021-9797
Subject:
urea,   etc   ; chromic oxide; electric potential difference; electrochemistry; electrodes; electrolysis; electron transfer; energy conversion; hydrogen; nanoparticles; nanosheets; nickel oxide; oxidation; protective effect; reaction kinetics;     Show all 15 Subjects
Abstract:
... Applications of urea oxidation reaction (UOR) in various sustainable energy-conversion systems are greatly hindered by its slow kinetics. Herein, we demonstrate an in-situ confined synthesis method that produces amorphous chromium oxide confined Ni/NiO nanoparticles-assembled nanosheets (Ni/NiO@CrOₓ) with fast reaction kinetics towards UOR. The confinement effect of the in-situ generated CrOₓ over ...
DOI:
10.1016/j.jcis.2022.09.072

10. Peptide-modified carbon dot aggregates for ultrasensitive detection of lipopolysaccharide through aggregation-induced emission enhancement

Author:
Manivannan Madhu; A. Santhana Krishna Kumar; Chi-Yu Lu; Wei-Lung Tseng
Source:
Talanta 2023 v.253 pp. 123851
ISSN:
0039-9140
Subject:
urea,   etc   ; Escherichia coli; carbon; centrifugation; citric acid; detection limit; fluorescence; fluorescent dyes; hot water treatment; lipopolysaccharides; pH; peptides; signal-to-noise ratio; ultrafiltration;     Show all 14 Subjects
Abstract:
... This study fabricated yellow-emitting CDs (Y-CDs) by hydrothermal treatment of citric acid and urea and applied them as a fluorescence turn-on platform for sensitive and selective detection of lipopolysaccharide (LPS) based on the non-shifted AIEE of peptide-stabilized CD aggregates. The designed peptide (named K3) consisting of aggregation-active and LPS-recognition units triggered the aggregatio ...
DOI:
10.1016/j.talanta.2022.123851

11. Coupling Dual-phased nickel selenides with N-doped carbon enables efficient urea electrocatalytic oxidation

Author:
Qiuhan Cao; Wen Huang; Jiaru Shou; Xiujuan Sun; Kaili Wang; Yongjie Zhao; Rui Ding; Weiwei Lin; Enhui Liu; Ping Gao
Source:
Journal of colloid and interface science 2023 v.629 pp. 33-43
ISSN:
0021-9797
Subject:
urea,   etc   ; carbon; carbon dioxide; catalysts; desorption; electric potential difference; electrical conductivity; electrochemistry; electrolysis; energy conversion; fuel cells; hydrogen peroxide; nanocrystals; nickel; oxidation; pollution; selenides;     Show all 17 Subjects
Abstract:
... Electrochemical urea oxidation reaction (UOR) is urgently in demand for diverse energy conversion and storage device coupled with pollution treatment because of its favorable thermodynamic potential (0.37 V vs RHE) and wide distribution nature of urea, but simultaneously gravely limited by the sluggish reaction dynamics and poisoning of catalyst. Herein, dual-phased Ni₀.₈₅Se/NiSe₂ coupling with N ...
DOI:
10.1016/j.jcis.2022.08.095

12. Effect of organic and mineral fertilizers applications in pasture and no-tillage system on crop yield, fractions and contaminant potential of Cu and Zn

Author:
Guilherme Wilbert Ferreira; Cledimar Rogério Lourenzi; Jucinei José Comin; Arcângelo Loss; Eduardo Girotto; Marcos Paulo Ludwig; Joice Aline Freiberg; Diego de Oliveira Camera; Carina Marchezan; Natália Moreira Palermo; Gustavo Scopel; Ana Laura Santos Thoma; Amanda Bordoli Charopem; Jean Michel Moura-Bueno; Gerson Laerson Drescher; Gustavo Brunetto
Source:
Soil & tillage research 2023 v.225 pp. 105523
ISSN:
0167-1987
Subject:
urea,   etc   ; Cynodon; bioavailability; clay soils; copper; crop yield; fractionation; hay; mineral fertilizers; no-tillage; organic fertilizers; pastures; pig manure; research; risk; soil analysis; soybeans; subsoil; sustainable development; toxicity; zinc;     Show all 21 Subjects
Abstract:
... Organic wastes, fertilizers, organominerals, and minerals contain nutrients essential to crops and contribute to increase productivity. However their use can also lead to the accumulation of copper and zinc, which changes the distribution of their fractions and enhances the risk of toxicity to plants and the environment, thereby working against the sustainable development goals. However, the effec ...
DOI:
10.1016/j.still.2022.105523

13. Foliar-sprayed calcium-tryptophan mediated improvement in physio-biochemical attributes and nutritional profile of salt stressed Brassica oleracea var. italica

Author:
Maryam Haghighi; Saaid Khosravi; Shafaque Sehar; Imran Haider Shamsi
Source:
Scientia horticulturae 2023 v.307 pp. 111529
ISSN:
0304-4238
Subject:
urea,   etc   ; Brassica oleracea var. italica; abscisic acid; broccoli; calcium; carbon dioxide; chlorophyll; glucobrassicin; leaves; nitrate reductase; nitrates; nitrogen; nutrient content; nutrient uptake; nutritive value; photosynthesis; progoitrin; salinity; salt stress; tryptophan; vegetative growth;     Show all 21 Subjects
Abstract:
... Chelated mineral supplements are a combination of minerals with amino acids (AAs), putatively more efficient as fertilizers, especially for enhancing nutrient absorption. This study aimed at investigating the efficacy of foliar-applied calcium (Ca) and its complex with tryptophan to improve the vegetative growth, biochemical attributes and nutritional value of salt stressed broccoli (Brassica oler ...
DOI:
10.1016/j.scienta.2022.111529

14. Andrographolide loaded Pickering emulsion: A bioactive component for improved growth, digestibility, and haematological properties in cultured common carp Cyprinus carpio

Author:
Archana Mishra; Bakht Ramin Shah; Koushik Roy; Ehdaa Eltayeb Eltigani Abdelsalam; Veronika Piačková; Haq Abdul Shaik; Petr Dvořák; Josef Velíšek; Kuebutornye Felix Kofi Agbeko; Jan Mráz
Source:
Aquaculture 2023 v.562 pp. 738810
ISSN:
0044-8486
Subject:
urea,   etc   ; Cyprinid herpesvirus 3; Cyprinus carpio; albumins; andrographolide; aquaculture; aquaculture feeds; bioactive compounds; bioavailability; body weight; carp; chitosan; creatinine; digestibility; emulsions; encapsulation; energy; farmed fish; feed conversion; globulins; immunostimulants; intestinal microorganisms; metabolites; microbial activity; neutrophils; nitrogen; prebiotics; protein content; therapeutics; triacylglycerols;     Show all 30 Subjects
Abstract:
... In aquaculture, the therapeutic potential of andrographolide had been beneficially documented but still restricted owing to its high dosage and low bioavailability. To maximize andrographolide's potential value in carps, we want to create an effective delivery mechanism. During the 8-week Cyprinus carpio feeding trial, we aimed to test a low dose (0.05 g kg⁻¹ or 0.005%) andrographolide-supplemente ...
DOI:
10.1016/j.aquaculture.2022.738810

15. Adverse effects of triclosan on kidney in mice: Implication of lipid metabolism disorders

Author:
Wei Huang; Guodong Cao; Chengliang Deng; Yanyan Chen; Tao Wang; Da Chen; Zongwei Cai
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 481-490
ISSN:
1001-0742
Subject:
urea nitrogen,   etc   ; beta oxidation; biomarkers; blood serum; corn oil; creatinine; cytokines; dimethyl sulfoxide; dose response; energy; fatty acid metabolism; fibrosis; hepatotoxicity; immune response; inflammation; kidneys; lipids; lipotoxicity; males; mass spectrometry; metabolites; mice; oxidative stress; renal function; thyroid function; triclosan; uric acid; China;     Show all 28 Subjects
Abstract:
... Triclosan (TCS) is a ubiquitous antimicrobial used in daily consumer products. Previous reports have shown that TCS could induce hepatotoxicity, endocrine disruption, disturbance on immune function and impaired thyroid function. Kidney is critical in the elimination of toxins, while the effects of TCS on kidney have not yet been well-characterized. The aim of the present study was to investigate t ...
DOI:
10.1016/j.jes.2021.11.032

16. Biochar amendment benefits 15N fertilizer retention and rhizosphere N enrichment in a maize-soil system

Author:
Jie Zhang; Lijuan Zhang; Shaojun Qiu
Source:
Geoderma 2022 v.412 pp. 115713
ISSN:
0016-7061
Subject:
urea; urea nitrogen,   etc   ; biochar; corn; leaves; microbial biomass; mineralization; nitrogen fertilizers; rhizosphere; soil;     Show all 10 Subjects
Abstract:
... Biochar amendments regulate fertilizer nitrogen (N) transformation in soil and crop N uptake. To elucidate the effect of biochar amendment on the translocation of fertilizer N in a crop-soil system during crop growth, a maize pot experiment was conducted using an isotope tracer approach. The treatments were: without N application; ¹⁵N-labelled urea; and ¹⁵N-labeled urea plus biochar. During maize ...
DOI:
10.1016/j.geoderma.2022.115713

17. Convergent Synthesis of Dihydrobenzofurans via Urea Ligand-Enabled Heteroannulation of 2-Bromophenols with 1,3-Dienes

Author:
Kaitlyn E. Houghtling; Amanda M. Canfield; Shauna M. Paradine
Source:
Organic letters 2022 v.24 no.31 pp. 5787-5790
ISSN:
1523-7052
Subject:
urea,   etc   ; ligands; palladium; phosphine;     Show all 4 Subjects
Abstract:
... We disclose a palladium and urea ligand-mediated heteroannulation of 2-bromophenols and 1,3-dienes. This method addresses synthetic challenges present in the palladium-catalyzed heteroannulation of bifunctional reagents and olefins by engaging a diverse scope of coupling partners under a unified set of reaction conditions. Our recently developed urea ligand platform outperforms phosphine ligands t ...
DOI:
10.1021/acs.orglett.2c02301

18. Facile coating of micronutrient zinc for slow release urea and its agronomic effects on field grown wheat (Triticum aestivum L.)

Author:
Bilal Beig; Muhammad Bilal Khan Niazi; Zaib Jahan; Munir Zia; Ghulam Abbas Shah; Zahid Iqbal; Inamullah Douna
Source:
Science of the total environment 2022 v.838 pp. 155965
ISSN:
0048-9697
Subject:
urea; urea nitrogen,   etc   ; Triticum aestivum; environment; grain yield; plant height; wheat; zinc; zinc oxide;     Show all 9 Subjects
Abstract:
... Slow release urea has been widely tested in recent past as an effective method to enhance the crop productivity with fewer environmental concerns. However, very few research studies have been performed using micronutrients as a source of slow release of urea nitrogen. A laboratory and field study were carried out to check the agronomic effects of zinc oxide nanoparticles and its bulk salt coatings ...
DOI:
10.1016/j.scitotenv.2022.155965

19. Optimum Rate and Deep Placement of Nitrogen Fertilizer Improves Nitrogen Use Efficiency and Tomato Yield in Nepal

Author:
Naba Raj Pandit; Dyutiman Choudhary; Shashish Maharjan; Krishna Dhakal; Shree Prasad Vista; Yam Kanta Gaihre
Source:
Soil systems 2022 v.6 no.3 pp. -
ISSN:
2571-8789
Subject:
urea; urea fertilizers,   etc   ; application timing; climate; crop management; nitrogen; nutrient use efficiency; soil; tomatoes; Nepal;     Show all 10 Subjects
Abstract:
... In Nepal, blanket fertilizer recommendations without considering diverse soil types, nutrient status, climate and crop management practices along with imbalanced fertilization practices by farmers, mainly “urea fertilizer,” have resulted in reduced nitrogen use efficiency (NUE) and productivity in tomato production. Optimizing the rate of nitrogen (N) fertilizer, application time and improved appl ...
DOI:
10.3390/soilsystems6030072

20. Slash pine growth and nitrogen leaching potential following fertilization and pinestraw removal

Author:
Anna Osiecka; Patrick J. Minogue; Dwight K. Lauer
Source:
Soil Science Society of America journal 2022 v.86 no.3 pp. 810-830
ISSN:
0361-5995
Subject:
polymer-coated urea; urea,   etc   ; Pinus elliottii; ammonium nitrogen; fertilizer rates; mortality; nitrogen; soil solution; Florida;     Show all 9 Subjects
Abstract:
... Commercial pine plantations in the southern United States are commonly fertilized to enhance growth and to replenish nutrients following timber harvests or repetitive raking of pinestraw, an important secondary product. We examined the effects of pinestraw removal and fertilization on pine growth and N leaching potential in an 8‐yr‐old slash pine (Pinus elliottii Engelm.) plantation in North Flori ...
DOI:
10.1002/saj2.20381