water – TechConnect Briefs

Cataphotolysis of Propanil in water using nanotechnology

Yu Z., Wu V., Li Z., California State Polytechnic University, Pomona, US

Irrigation of farmland consumed approximately 80% of total water usage in California. The costs associated with groundwater monitoring and cleansing have cost the state more than $33 millions of dollars. This research project has significant [...]

A Simple Synthesis of Polymer Coated Gold and Silver Nanoparticles in Water for Potential Use in Biomedical Applications

Rahme K., Minassian G., Ghanem E., Sarkis M., Nakhl M., El Hage R., Souaid E., Holmes J.D., Notre Dame University (Louaize), LB

Herein we describe a simple method for the synthesis of highly stable gold (Au) and silver (Ag) nanoparticles (NPs) in water. Ag and Au NPs of different surface charges (positively charged, negatively charged, or nearly [...]

Removal of Water Contaminants Using Nanotechnology

Yu Z., Li Z., California State Polytechnic University, Pomona, US

Propanil, Diuron, Simazine, and Metolachlor are widely used as herbicides and pesticides in California agriculture and across the U.S., and are considered to pose a significant threat to water contamination by transporting chemicals into surface [...]

High efficiency capture of multiple bacterial species by microfluidic dielectrophoresis filter

Simon S., Weber M., Fluid-Screen, Inc., US

Fluid-Screen, Inc. presents a bacterial concentration and filtration method based on dielectrophoresis (DEP). DEP has been known to induce particle motion since the 1960’s. However, yields and reproducibility have consistently been low in practice, reducing [...]

Cellulose Nanocrystals as Barrier Performance Enhancer of Extrusion-Blown PLA Films for Food Applications

Matuana L.M., Karkhanis S.S., Stark N.M., Michigan State University, US

Bio-based plastics from sustainable resources such as biomass are the best alternative to petroleum-based polymers because they provide solutions for reducing the general dependency on oil availability and environmental concerns about the use of common [...]

Aqueous Carboxylic Acid-Based Solutions for CO2 Capture

Carrera G.V.S.M., Branco L.C., Nunes da Ponte M., LAQV - REQUIMTE - FCT- NOVA University, PT

Aqueous Carboxylic Acid-Based Solutions for CO2 Capture Gonçalo V. S. M. Carrera a, Luís C. Branco a, Manuel Nunes da Ponte a a LAQV/REQUIMTE Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, CQFB/REQUIMTE, 2829-516 [...]

Estimation of Algae Concentration in Water Using Spectrophotometric Measurements and First Derivative of Absorbance

AlMomani F., Örmeci B., Qatar University, QA

The occurrence of algae in conventional wastewater treatment plants or aerated lagoons can result in false indications in the final effluent parameters, such as TSS and CBOD5 . Algae plumes create surface scum, poor water [...]

Reduced molybdenum oxide MoOx as a model catalyst for methanol photosynthesis from carbon dioxide and water

Silaev I.V., Khubezhov S.A., Tvauri I.V., Kaloeva A.G., Kibizov D.D., Ramonova A.G., Grigorkina G.S., Demeev Z.S., Bliev A.P., Sekiba D., Ogura S., Fukutani K., Magkoev T.T., North Ossetian State University, RU

Corresponding author, e-mail: t_magkoev@mail.ru (Tamerlan Magkoev) The work deals with the design of molybdenum oxide MoO2 with a specific density of anionic vacancies for methanol synthesis from carbon dioxide and water. Surface sensitive studies were [...]

Photocatalysis of Rhodamine B in water using nanotechnology

Yu Z., Li Z., California State Polytechnic University, Pomona, US

There are several techniques currently used for water organic contaminants removal, including Activated Carbon Adsorption, Chlorination, UV Photolysis, Ozonation, and Ferrate Oxidation. Although these techniques are useful in treating contaminated water, they have limitations in [...]

Rapid prototyping bacterial spore hygro-actuators for soft robotics and adaptive materials

Cavusoglu A.‐H., Chen X., Tatem K., Sahin O., Columbia University, US

Over the past decade, rapid prototyping has migrated from the research and industrial labs into the homes of consumers. However, these solid models are limited in demonstrating dynamic actuation. A large range of soft materials [...]