Related Articles
J. Serb. Chem. Soc.. 2010 Jan
Synthesis and characterization of ammonium phosphate fertilizers with boron
The concentration of boron, an essential micronutrient for plants, presents a narrow range between deficiency and toxicity. In order to provide the boron requirement for plants, and to avoid toxicity problems, boron compounds are mixed with basic fertilizers. Sodium borate pentahydrate was used as a boron source. Ammonium orthophosphates fertilizers with boron were prepared by…
Revista Brasileira de Ciência do Solo. 2018 Dec
Acid Ammonium Citrate as P Extractor for Fertilizers of Varying Solubility
There are several globally accepted methods to chemically characterize P-fertilizers, but not all are suitable to predict the agronomic efficiency of the P sources in terms of plant nutrition. Our aim was to investigate the performance of P extractors for fertilizers, investigating the consistency of different methods for P sources of varying properties and the…
Journal of Experimental Botany. 2017 Mar
Ammonium as a signal for physiological and morphological responses in plants
Ammonium is a major inorganic nitrogen source for plants. At low external supplies, ammonium promotes plant growth, while at high external supplies it causes toxicity. Ammonium triggers rapid changes in cytosolic pH, in gene expression, and in post-translational modifications of proteins, leading to apoplastic acidification, co-ordinated ammonium uptake, enhanced ammonium assimilation, altered oxidative and phytohormonal…
Sheng Wu Gong Cheng Xue Bao. 2019 Sep
Acellular vascular scaffolds modified by ammonium phosphate zwitterions can effectively resist thrombosis and promote endothelialization in vitro.
Due to limited availability of autologous blood vessels (blood vessels from the same recipient used for vascular transplantation materials) and inadequate growth ability of non-autologous blood vessels (artificial blood vessel transplantation materials), more and more attention has been paid to tissue engineering blood vessels. In this study, we constructed an ammonium phosphate zwitterion modified acellular…
Calcified Tissue International. 2001 Sep
Mechanisms of action and therapeutic potential of strontium in bone.
The processes of bone resorption and formation are tightly governed by a variety of systemic and local regulatory agents. In addition, minerals and trace elements affect bone formation and resorption through direct or indirect effects on bone cells or bone mineral. Some trace elements closely chemically related to calcium, such as strontium (Sr), have pharmacological…
Journal of Biomedical Materials Research Part A. 2015 Oct
Strontium-impregnated bioabsorbable composite for osteoporotic fracture fixation.
Osteoporosis impairs the bone-healing process as well as bone fracture fixation. The intervention of osteoporosis is considered to be one part of bone fracture treatment. Thus, orthopedic fixators impregnated with antiosteoporosis regimens will improve fracture fixation in osteoporotic bone. In this study, the strontium (Sr) and calcium phosphate ceramic (CPC) were mixed first and then…
Food Chemistry. 2014 Jan
Geographic determination of coffee beans using multi-element analysis and isotope ratios of boron and strontium.
This study aims to evaluate the feasibility of using chemical and isotopic compositions of coffee beans to identify their geographic origins. Twenty-one Coffea arabica beans collected from 14 countries in 3 major coffee-producing regions, Africa, America and Asia, were analysed for multi-element of B, Rb, Sr, Ba, Fe, Mn and Zn, as well as isotopic…
The Journal of Clinical Dentistry. 2014 Jan
The effect of zinc lactate and magnolia bark extract added tablets on volatile sulfur-containing compounds in the oral cavity.
A controlled, clinical, double-blind study was conducted to assess the efficacy of sugar-free tablets containing zinc lactate and magnolia bark extract (MBE) on oral volatile sulfur-containing compounds (VSC) versus placebo tablets for two hours. METHODS: In order to join the study, subjects had to have at least 24 teeth, no report of oral and systemic…
Animal Science Journal. 2015 Aug