Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Chemistry (12)
- Materials Chemistry (11)
- Life Sciences (6)
- Organic Chemistry (6)
- Medicine and Health Sciences (5)
-
- Environmental Chemistry (4)
- Food Chemistry (4)
- Food Science (4)
- Analytical, Diagnostic and Therapeutic Techniques and Equipment (3)
- Polymer Chemistry (3)
- Chemicals and Drugs (2)
- Other Analytical, Diagnostic and Therapeutic Techniques and Equipment (2)
- Other Chemistry (2)
- Physics (2)
- Applied Mathematics (1)
- Biochemistry, Biophysics, and Structural Biology (1)
- Biophysics (1)
- Engineering (1)
- Environmental Education (1)
- Environmental Sciences (1)
- Inorganic Chemistry (1)
- Medicinal-Pharmaceutical Chemistry (1)
- Numerical Analysis and Computation (1)
- Other Biochemistry, Biophysics, and Structural Biology (1)
- Other Chemicals and Drugs (1)
- Other Pharmacy and Pharmaceutical Sciences (1)
- Partial Differential Equations (1)
- Keyword
-
- Calixarene (4)
- Anatase (2)
- HPLC (2)
- Lc-ms/ms (2)
- Photocatalysis (2)
-
- Potentiometry (2)
- Rutile (2)
- Silver (2)
- TiO2 (2)
- Validation (2)
- 3D printing (1)
- Acetate sheet (1)
- Ammonia sensor (1)
- Analytical Workflow (1)
- Analytical techniques (1)
- Anion sensor (1)
- Antibacterial activity (1)
- Antibiotics (1)
- Atmospheric aerosols (1)
- Biological components (1)
- Biomedical analysis (1)
- Bromocresol purple (1)
- Caffeine (1)
- Cancer (1)
- Catalysis (1)
- Cereals (1)
- Characterisation (1)
- Chemical (1)
- Chloramphenicol (1)
- Chloride (1)
- Publication Year
- Publication
- Publication Type
Articles 31 - 35 of 35
Full-Text Articles in Analytical Chemistry
A Chloride Selective Calix[4]Arene Optical Sensor Combining Urea Functionality With Pyrene Excimer Transduction, Benjamin Schazmann, Dermot Diamond
A Chloride Selective Calix[4]Arene Optical Sensor Combining Urea Functionality With Pyrene Excimer Transduction, Benjamin Schazmann, Dermot Diamond
Articles
A neutral 2-site chloride selective compound has been developed (3), based on a 1,3- alternate tetrasubstituted calix[4]arene providing a preorganised supramolecular scaffold. The resultant supramolecular cavity is amongst the first to combine urea functional groups bridged with single methylene spacers to pyrene moieties. It combines a naturally and synthetically proven H-bonding system with the elegant ratiometric fluorescent signalling properties of an intramolecular pyrene excimer system, triggered by conformational changes upon anion coordination. The excimer emission of 3 is quenched, with a simultaneous rise in the monomer emission solely by the chloride anion amongst a wide variety of anions tested. 3 …
Identification And Recovery Of An Asymmetric Calix[4]Arene Tetranitrile Derivative Using Liquid Chromatography And Mass Spectrometry, Benjamin Schazmann, Dermot Diamond
Identification And Recovery Of An Asymmetric Calix[4]Arene Tetranitrile Derivative Using Liquid Chromatography And Mass Spectrometry, Benjamin Schazmann, Dermot Diamond
Articles
A simple analytical LC-MS (Liquid Chromatography Mass Spectrometry) method and associated instrumentation has been adapted for use by the organic chemist to yield mg quantities of target compound from a reaction mixture. Calix[4]arene 3 was identified as representing 51% of total peak area of a reaction mixture containing no less than 10 components, using LC-MS. This peak corresponded to a mass of 878.8, equivalent to a complex of 3 and an ammonium cation. Molecular models further rationalise this observation by showing that the asymmetric binding cavity of 3 is suitable for binding tetrahedral guests like the ammonium ion. By scaling …
Simulation Of Dynamic Electrochemical Processes, John Cassidy
Simulation Of Dynamic Electrochemical Processes, John Cassidy
Articles
This work is designed to introduce electrochemists in a tutorial manner to the basics of modeling of electrochemical systems based primarily on diffusion equations. There is an introduction to analytical and numerical methods with examples taken from typical electrochemical experiments. The Laplace transform is used to derive the Cottrell equation and chronopotentiometry. The response of an electrode to a Gaussian concentration profile is detailed. Laplace’s equation is solved for a simple cell to determine the potential distribution. Discrete methods are employed to calculate the current time behavior following a potential step using the explicit finite difference method. Cyclic voltammetry is …
Studies On The Amylolytic Breakdown Of Damaged Starch In Cereal And Non-Cereal Flours, Karen Bailey
Studies On The Amylolytic Breakdown Of Damaged Starch In Cereal And Non-Cereal Flours, Karen Bailey
Masters
The term starch damage refers to a number of changes to the starch granule structure, which are detectable by different analytical techniques. Damaged starch is the substrate for amylases, which in turn provides carbohydrates that are used in the production of certain foods and food ingredients; as a result, therefore, determination of levels in flours is a procedure carried out routinely by many manufacturers of starch based products. Enzymatic assay methods emulate the susceptibility of damaged starch granules to enzymatic attack. The first aim of this study was to evaluate enzymatic methods(1,2) to determine damaged starch in wheat flours and …
Wearable Electrochemical Sensors For Monitoring Performance Athletes, Kevin J. Fraser, Vincenzo F. Curtin, Shirley Coyle, Benjamin Schazmann, Robert Byrne, Fernando Benito-Lopez, Roisin M. Owens, George C. Malliaras, Dermot Diamond
Wearable Electrochemical Sensors For Monitoring Performance Athletes, Kevin J. Fraser, Vincenzo F. Curtin, Shirley Coyle, Benjamin Schazmann, Robert Byrne, Fernando Benito-Lopez, Roisin M. Owens, George C. Malliaras, Dermot Diamond
Conference Papers
Nowadays, wearable sensors such as heart rate monitors and pedometers are in common use. The use of wearable systems such as these for personalized exercise regimes for health and rehabilitation is particularly interesting. In particular, the true potential of wearable chemical sensors, which for the real-time ambulatory monitoring of bodily fluids such as tears, sweat, urine and blood has not been realized. Here we present a brief introduction into the fields of ionogels and organic electrochemical transistors, and in particular, the concept of an OECT transistor incorporated into a sticking-plaster, along with a printable “ionogel” to provide a wearable biosensor …