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Boric acid

Mayuki Tanaka, Naoyuki Sotta, Yusuke Yamazumi, Yui Yamashita, Kyoko Miwa, Katsunori Murota, Yukako Chiba, Masami Yokota Hirai, Tetsu Akiyama, Hitoshi Onouchi, Satoshi Naito, Toru Fujiwara
Upstream open reading frames (uORFs) are often translated ahead of the main ORF of a gene and regulate gene expression, sometimes in a condition-dependent manner, but such a role for the minimum uORF (hereafter referred to as 'AUG-stop') in living organisms is currently unclear. Here, we show that AUG-stop plays an important role in the boron (B)-dependent regulation of NIP5;1, encoding a boric acid channel required for normal growth under low B conditions in Arabidopsis thaliana. High B enhanced ribosome stalling at AUG-stop, which was accompanied by the suppression of translation and mRNA degradation...
October 19, 2016: Plant Cell
Lee William Cohnstaedt, Darren Snyder
Insecticidal sugar baits for mosquitoes and house ies have proven e cacy to reduce insect populations and consequently, disease transmission rates. The new insecticidal sugar trap (IST) is designed speci cally for controlling biting midge disease vector populations around livestock and near larval habitats. The trap operates by combining light-emitting diode (LED) technology with insecticidal sugar baits. The positive photo attraction of Culicoides elicited by the LEDs, draws the insects to the insecticidal sugar bait, which can be made from various commercial insecticide formulations (pyrethroids, neonicotinoids, etc...
September 30, 2016: Veterinaria Italiana
Xiaomei Xu, Zhiyong Liu, Shitong Yang, Lanhua Chen, Juan Diwu, Evgeny V Alekseev, Zhifang Chai, Thomas E Albrecht-Schmitt, Shuao Wang
The equatorial coordination nature of the uranyl unit has resulted in only three uranyl borate 3D framework compounds reported so far formed from boric acid flux reactions conducted at 190 °C while all others are 2D layers. Here in this work, by increasing the reaction temperature to 250 °C, a new potassium uranyl borate K[(UO2)B6O10(OH)] (KUBO-4) framework compound is synthesized that shares the same layer topology with the previously reported 2D layered KUBO-1. The 3D structure of KUBO-4 is achieved by interlayer hydroborate condensation...
October 4, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
He Feng, Lei Wang, Lu Zhao, Chungui Tian, Peng Yu, Honggang Fu
The exploration of low-cost and highly efficient non-platinum electrocatalysts for the oxygen reduction reaction (ORR) is vital for renewable systems. Herein, we report a novel non-platinum electrocatalyst consisting of B and N separately co-doped graphitic carbon encapsulated Fe/Fe3C nanoparticles (BNGFe), which were synthesized from a facile method by adopting melamine, iron nitrate and boric acid as the precursors. In this synthesis, the N atoms in melamine first bond with the iron ions in iron nitrate, which could prevent the formation of BN covalent bonds during the subsequent pyrolysed process, resulting in the formation of effective B and N separately co-doped graphitic carbon encapsulated on the Fe/Fe3C nanoparticles...
September 29, 2016: Physical Chemistry Chemical Physics: PCCP
Danis Kartikaningsih, Yao-Hui Huang, Yu-Jen Shih
The electrocoagulation (EC) using metallic Ni foam as electrodes was studied for the removal of boron from solution. The electrolytic parameters were pH (4-12), current density (0.6-2.5 mA cm(-2)), and initial concentration of boron (10-100 mg L(-1)). Experimental results revealed that removal efficiency was maximized at pH 8-9, and decreased as the pH increased beyond that range. At particular onset potentials (0.5-0.8 V vs. Hg/HgO), the micro-granular nickel oxide that was created on the surface of the nickel metal substrate depended on pH, as determined by cyclic voltammetry...
January 2017: Chemosphere
Henrik Harnisch, Jens Hühner, Christian Neusüß, Andreas Koschella, Thomas Heinze, Gerhard K E Scriba
To characterize sulfoethyl cellulose samples, a capillary electrophoresis method was developed and validated. Sulfoethyl cellulose was hydrolyzed, and the resulting d-glucose derivatives were analyzed after reductive amination with 4-aminobenzoic acid using 150 mM boric acid, pH 9.5, as background electrolyte at 20°C and a voltage of 28 kV. Peak identification was derived from capillary electrophoresis with mass spectrometry using 25 mM ammonia adjusted to pH 6.2 by acetic acid as electrolyte. Besides mono-, di- and tri-sulfoethyl-d-glucose, small amounts of disaccharides could be identified resulting from incomplete hydrolysis...
October 3, 2016: Journal of Separation Science
Akeem Adeyemi Oladipo, Mustafa Gazi
Porous magnetic hybrids were synthesized and functionalized with glycidol to produce boron-selective adsorbent. The magnetic hybrid (MH) comparatively out-performed the existing expensive adsorbents. MH had a saturation magnetisation of 63.48 emu/g and average pore diameter ranging from meso to macropores. The magnetic hybrids showed excellent selectivity towards boron and resulted in 79-93% boron removal even in the presence of competing metal ions (Na(+) and Cr(2+)). Experiments were performed in a column system, and breakthrough time was observed to increase with bed depths and decreased with flow rates...
December 1, 2016: Journal of Environmental Management
William Herrington, Nicola Illingworth, Natalie Staplin, Aishwarya Kumar, Ben Storey, Renata Hrusecka, Parminder Judge, Maria Mahmood, Sarah Parish, Martin Landray, Richard Haynes, Colin Baigent, Michael Hill, Sarah Clark
BACKGROUND AND OBJECTIVES: Because there is substantial biologic intraindividual variation in albumin excretion, randomized trials of albuminuria-reducing therapies may need multiple urine samples to estimate daily urinary albumin excretion. Mailing spot urine samples could offer a convenient and cost-effective method to collect multiple samples, but urine albumin-to-creatinine ratio stability in samples stored at ambient temperatures for several days is unknown. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Patients with kidney disease provided fresh urine samples in two tubes (with and without boric acid preservative)...
September 21, 2016: Clinical Journal of the American Society of Nephrology: CJASN
Soroush Amani, Mohammad Moeini
INTRODUCTION: Acute otitis externa is an inflammation of the external auditory canal known as "swimmer's ear". Direct costs including medical treatment, painkillers, antibiotics, steroids or both and indirect costs are also remarkable. AIM: The aim of this study was to compare the effect of boric acid and polymyxin, neomycin and hydrocortisone composition in the treatment of acute otitis externa. MATERIALS AND METHODS: This randomized clinical trial was carried out on 80 patients aged more than 17-year-old who were referred to Kashani hospital clinic with a diagnosis of acute otitis externa by otolaryngologist...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Bo Wang, Young Sil Jeon, Ho Seok Park, Ji-Heung Kim
Stimuli-responsive and self-healing materials have a wide range of potential uses, and some significant research has focused on cross-linking of hydrogel materials by means of reversible coordination bonding. The resulting materials, however, tend to have poor mechanical properties with pronounced weakness and brittleness. In this work, we present a novel mussel-inspired graphene oxide(GO)-containing hydrogel based on modified polyaspartamide with γ-amino butyric acid (GABA), 3.4-dihydroxyphenethylamine (DOPA), and ethanolamine (EA), termed PolyAspAm(GABA/DOPA/EA)...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
Motahareh Soltani, Seyed F Shetab-Boushehri, Seyed V Shetab-Boushehri
OBJECTIVES: Aluminium phosphide (AlP) is a fumigant pesticide which protects stored grains from insects and rodents. When it comes into contact with moisture, AlP releases phosphine (PH3), a highly toxic gas. No efficient antidote has been found for AlP poisoning so far and most people who are poisoned do not survive. Boric acid is a Lewis acid with an empty p orbital which accepts electrons. This study aimed to investigate the neutralisation of PH3 gas with boric acid. METHODS: This study was carried out at the Baharlou Hospital, Tehran University of Medical Sciences, Tehran, Iran, between December 2013 and February 2014...
August 2016: Sultan Qaboos University Medical Journal
Jaakko Hiltunen, Lauri Kuutti, Stella Rovio, Eini Puhakka, Tommi Virtanen, Taina Ohra-Aho, Sauli Vuoti
Green chemistry, sustainability and eco-efficiency are guiding the development of the next generation of industrial chemical processes. The use of non-edible lignocellulosic biomass as a source of chemicals and fuels has recently raised interest due to the need for an alternative to fossil resources. Valorisation mainly focuses on cellulose, which has been used for various industrial scale applications for decades. However, creating an economically more viable value chain would require the exploitation of the other main components, hemicellulose and lignin...
2016: Scientific Reports
Jiawei Wang, Zongbi Bao, Huabin Xing, Baogen Su, Zhiguo Zhang, Qiwei Yang, Yiwen Yang, Qilong Ren, Banglin Chen
Polymeric resins are practically important adsorbents in a wide variety of applications, but they generally suffer from low surface areas and limited functionalized adsorption sites owing to their closely compacted and tangled polymeric chains. A metal-organic framework (MOF)-polymer composite with enhanced adsorption capacity against the compacted polymeric resins was reported. The strategy to incorporate functionalized oligomer within the cavities of the MOF was demonstrated by the preparation of MIL-101(Cr) incorporated with N-methyl-d-glucamine-based organosiloxane polymer...
October 17, 2016: Chemistry: a European Journal
Sarah E Kobylewski, Kimberly A Henderson, Kristin E Yamada, Curtis D Eckhert
Fruits, nuts, legumes, and vegetables are rich sources of boron (B), an essential plant nutrient with chemopreventive properties. Blood boric acid (BA) levels reflect recent B intake, and men at the US mean intake have a reported non-fasting level of 10 μM. Treatment of DU-145 prostate cancer cells with physiological concentrations of BA inhibits cell proliferation without causing apoptosis and activates eukaryotic initiation factor 2 (eIF2α). EIF2α induces cell differentiation and protects cells by redirecting gene expression to manage endoplasmic reticulum stress...
September 1, 2016: Biological Trace Element Research
Shakeel Ahmed, Saiqa Ikram
Biopolymers are polymers obtained from biological origins and used for various biological and industrial applications. A biopolymer should be non-toxic, non-antigenic, non-irritant, non-carcinogenic, sterilisable and adequately available for their widespread applications. In this study, chitosan (CS) and gelatin (GL) based films were prepared to be used as biodegradable packaging films. CS was blended with GL to improve various physicochemical properties. The blended CSGL films were crosslinked with boric acid (BA) to improve various properties viz...
October 2016: Journal of Photochemistry and Photobiology. B, Biology
Feng Wu, Yi Xing, Li Li, Ji Qian, Wenjie Qu, Jianguo Wen, Dean Miller, Yusheng Ye, Renjie Chen, Khalil Amine, Jun Lu
To improve the electrochemical performance of the high energy Li-O2 batteries, it is important to design and construct a suitable and effective oxygen-breathing cathode. Herein, a three-dimensional (3D) porous boron-doped reduction graphite oxide (B-rGO) material with a hierarchical structure has been prepared by a facile freeze-drying method. In this design, boric acid as the boron source helps to form the 3D porous structure, owing to its cross-linking and pore-forming function. This architecture facilitates the rapid oxygen diffusion and electrolyte penetration in the electrode...
September 14, 2016: ACS Applied Materials & Interfaces
Tongfei Wu, Biqiong Chen
Intrinsic self-healing polyborosiloxane (PBS) and its multiwalled carbon nanotube (MWCNT)-reinforced nanocomposites were synthesized from hydroxyl terminated poly(dimethylsiloxane) (PDMS) and boric acid at room temperature. The formation of Si-O-B moiety in PBS was confirmed by Fourier transform infrared spectroscopy. PBS and its MWCNT-reinforced nanocomposites were found possessing water- or methanol-activated mechanically adaptive behaviors; the compressive modulus decreased substantially when exposed to water or methanol vapor and recovered their high value after the stimulus was removed...
September 14, 2016: ACS Applied Materials & Interfaces
M Tanaka, T Itoh, H Kaneko
Partial glyceride mixtures, which include 1-monoglyceride, 2-monoglyceride, free fatty acid, 1,2-diglyceride, 1,3-diglyceride and triglyceride, could be separated from each other on a 3% boric-acid-impregnated Chromarod S-II (silica gel sintered quartz rod) with either chloroform/acetone (96∶4, v/v) or chloroform/acetone/acetic acid (100∶1∶1, v/v) as the developing solvent mixtures. The components separated on the boric-acid-impregnated rod were automatically quantitated in a hydrogen flame ionization detector (Iatroscan)...
October 1980: Lipids
T Tatara, T Fujii, T Kawase, M Minagawa
The separation conditions for hydrolysates of triglycerides by lipase and their quantitative determination are discussed for a thin layer chromatography-flame ionization detector system utilizing internal standards. The complete separation of glyceride hydrolysis mixtures (triolein 1,3-diolein, 1,2-diolein, 1-monoolein and oleic acid) was achieved on a 3% boric acid-impregnated Chromarod S-II by development with benzene/chloroform/acetic acid (70∶30∶2, v/v/v) (mobile phase A) or hexane/ ether/acetic acid (70∶30∶1, v/v/v) (mobile phase B)...
October 1983: Lipids
Weijiang Zhang, Tianyu Liu, Jiao Xu
Boric acid is often added into coolant as neutron capture agent for pressurized water reactor, whose amount is influenced by its abundance and purity. Therefore, the preparation of enriched (10)B boric acid with high purity is beneficial to nuclear industry. (10)B is also used in developing tumor-specific boronated drugs in boron neutron capture therapy. The boronated drug can be administered to patient intravenously, intratumorally, or deposited at tumor site in surgical excision. Thus, enriched (10)B boric acid is of practical significance in the field of medicine...
2016: SpringerPlus
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