نتایج جستجو برای: phenyl boron extraction

تعداد نتایج: 208013  

2007
Gregory Young Kenneth H. Yu

Title: METALLIC NANO-PARTICLES AS FUEL ADDITIVES IN AIR-BREATHING COMBUSTION Gregory Young, Doctor of Philosophy, 2007 Directed By: Associate Professor, Dr. Kenneth H. Yu, Department of Aerospace Engineering For volume limited propulsion systems, the use of metals as fuel additives offers to increase performance by increasing the volumetric energy stored in the fuel. Highspeed airbreathing comb...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم 1392

the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

Journal: :Journal of Molecular Liquids 2023

Associative behavior of geometrically anisotropic meso-(4-octadecyloxy-phenyl)-boron-dipyrrin (BODIPY) studied spectroscopically in binary solvent mixtures and upon compression Langmuir floating layers. Different steady excited state species were found monolayer facilitated aggregation water/ acetonitrile systems. This discrepancy points to a big concern possibility commonly applied generalizat...

Journal: :Chemistry 2016
Sandip V Mulay Minsuk Choi Yoon Jeong Jang Youngsam Kim Sangyong Jon David G Churchill

Two closely related phenyl selenyl based boron-dipyrromethene (BODIPY) turn-on fluorescent probes for the detection of hypochlorous acid (HOCl) were synthesized for studies in chemical biology; emission intensity is modulated by a photoinduced electron-transfer (PET) process. Probe 2 intrinsically shows a negligible background signal; however, after reaction with HOCl, chemical oxidation of sel...

Journal: :Dalton transactions 2010
Shintaro Ishida Masayasu Ito Hiroaki Horiuchi Hiroshi Hiratsuka Soshi Shiraishi Soichiro Kyushin

Selective deprotection of 4-(alkoxysilyl)benzaldehyde diethyl acetals 1a-1c in the two-solvent system of hydrochloric acid and chloroform gave 4-(alkoxysilyl)benzaldehydes 2a-2c in good yields. Under these conditions, undesired hydrolysis of the alkoxysilyl group was minimized. The reaction of benzaldehydes 2a and 2b with pyrrole in the presence of boron trifluoride diethyl etherate led to 5,10...

Journal: :Chemistry 2015
Juergen Bartelmess Michele Baldrighi Valentina Nardone Emilio Parisini David Buck Luis Echegoyen Silvia Giordani

A series of π-extended distyryl-substituted boron dipyrromethene (BODIPY) derivatives with intense far-red/near-infrared (NIR) fluorescence was synthesized and characterized, with a view to enhance the dye's performance for fluorescence labeling. An enhanced brightness was achieved by the introduction of two methyl substituents in the meso positions on the phenyl group of the BODIPY molecule; t...

Journal: :The New phytologist 2017
Benjamin L Turner Paul-Camilo Zalamea Richard Condit Klaus Winter S Joseph Wright James W Dalling

It was recently proposed that boron might be the most important nutrient structuring tree species distributions in tropical forests. Here we combine observational and experimental studies to test this hypothesis for lowland tropical forests of Panama. Plant-available boron is uniformly low in tropical forest soils of Panama and is not significantly associated with any of the > 500 species in a ...

2017
Sachin U. Chambhare Gunawant P. Lokhande Ramanand N. Jagtap

Difunctional boron-containing reactive flame retardant for UV-curable epoxy acrylate oligomer was synthesized from phenyl boronic acid and glycidyl methacrylate. The synthesized reactive diluent was utilized to formulate ultraviolet (UV)-curable wood coatings. The weight fractions of reactive diluent in coatings formulation was varied from 5 to 25 wt % with constant photoinitiator concentration...

Journal: :physiology and pharmacology 0
mohammad reza naghii tehran- iran mahmood mofid ali reza asgari mahdi hedayati maryam sadat daneshpour

introduction: boron possesses widespread properties and is important for human and animal nutrition. since boron is rapidly bioavailable, the objective of the present study was to determine whether acute (hourly or daily), and weekly supplementationcould have any significant biological effects on the synthesis of steroids as well as inflammatory biomarkers. methods: eight male volunteers partic...

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