Titration

In this study, we developed an anthracene-based fluorescence PET sensor (AMG) was developed for detecting high pH values and water content in organic solvents. A guanidine group as a proton receptor was covalently attached to an anthracene fluorophore to afford highly polar AMG, with reasonable solubility in highly basic solution. The fluorescence of AMG increased almost linearly with decreasing pH in the range 11.0–13.0. AMG also exhibited a fluorescence turn-on response to water in various…

Important aspects for polymers and conjugated drugs A choice of anticancer drugs have been conjugated with polymers, including anthracycline antibiotics, antimetabolites, platinum analogues, alkylating agents, as well as peptides, proteins and enzymes (Meng, and El-Deiry, 2002). The main requirement for a candidate drug in this field is the drug minimum effective concentration. For example, if the minimum effective concentration needs to be ~10 '3 M for a drug with a molecular weight of -50 kDa,…

Chitin is a linear polysaccharide, with β-(1-4)-linked N-acetyl-D-glucosamine. Found in the exoskeletons of crustaceans (crab, shrimp, lobster, insects) & molluscs, as well as the cell walls of algae and fungi, chitin is the second-most naturally abundant polysaccharide after cellulose [1, 2]. Chitin occurs naturally in the polymorphic forms: α, β and γ. The α-polymorphic form of chitin is the most abundant in nature, present in the strong exoskeleton of crustaceans [6]. α-Chitin forms tightly…

of which scatter light and ii) the carotene which imparts a yellowish tint. The skim milk has a bluish and whey has a greenish yellow colour. Acidity and pH of Milk Freshly drawn milk is amphoteric in nature. The acidity of milk is determined by titration method using alkali and phenolphthalein. It is also called natural acidity and is caused by the presence of casein, citrate, acid phosphate etc., in milk. Developed or real acidity of milk is due to the production of lactic acid as a result of…

Registered Nurse, I would be extremely familiar and knowledgeable about all the above diagnoses and usual treatment associated with the specific neurological condition such as an external ventricular drains and tight blood pressure control with the titration of vasoactive and anti-hypertensive medications. As a Neurosurgical Intensive Care Unit Registered Nurse I have experience in order entry, exposure to radiologic imaging, and high levels of constant critical thinking. Just as Neurocritical…

Electronegativity is based upon the atoms strength within the element to attract electrons to form bonds. Now atoms like to fulfil the octet rule of having a perfect 8 outer shell causing it to be stable. Now unfortunately not all elements have a full outer shell now elements on the left side of the periodic table contain less than half of electrons the required energy to gain electrons is much higher than comparison to trying the energy to lose an electron. So the elements on the left side when…

Dietitian of Canada (2014) defined dietitians as highly qualified professionals educated in science, management, human development, and health of populations. The roles of dietitian are the “assessment of nutrition and nutritional conditions and the treatment and prevention of nutrition related disorders by nutritional means.” (College of Dietitian of Ontario, (CDO), 2014) “Dietetic Practice includes activities for which members use food & nutrition-specific knowledge, skills and judgment…

Water Quality Water is essential to human life and the health of the environment. Good water quality is essential for irrigation, drinking and recreation and also sustains ecological processes that support native fish populations, vegetation and bird life. We expect that our water supply will not only be safe, but will taste good, and look crystal clear. Water quality is commonly defined by its physical, chemical, biological and aesthetic (appearance and smell) characteristics. Water quality…

New ultraviolet (UV) curable prepolymer, 2–hydroxy–3–[p–(1–{2–hydroxy–3–(isopro– phenylcarbonyloxypropoxy) phenyl} methylcyclohexyl) phenoxy] propyl acrylate (BISCHDA) was synthesized by the reaction of p–[1–(p–hydroxyphenyl) methylcyclohexyl] phenol with methylcyclohexanone, epoxidation with epichlorohydrin followed by addition reaction with acrylic acid. All synthesized compounds were characterized by 1H-NMR, 13C-NMR and FT-IR spectroscopy. Several UV-curable formulated solutions were prepared…

2. Experimental Section 2.1 Materials Victrex PEEK (grade 450G), purchased by Victrex PLC (England) was used as the base polymer. Kynar flex 2801, PVDF-HFP (11-12% of hexafluoropropylene copolymer) was supplied by Arkema, Japan. Organically modified nanoclay, C 30B with a cation exchange capacity (CEC) of 90 meq/100 g was procured from M/s Southern clay Products. Conc.H2SO4 (98% pure) used as sulfonating agent was supplied by Merck lab grade. The catalysts, Pt black for the cathode and Pt/Ru…