Chemical, Physical & Bio-Sensors

Electrochemical Detection of Alcohol using Enzyme Sensor with Chromatography Paper and its Potential Application as halal Sensor

Musa M.S., Kuretake T., Harada Y., Hori F., Uno S., Ritsumeikan University, JP

The Islamic law forbids Muslims from consuming food that contains porcine derivatives and alcohol, among others. The halal term is not limited to only the food ingredients but also considers the absence of non-halal species [...]

Resistance and Potentiostatic Based Measurements of an Antibody Functionalized Conductive Polymer Coated Textile as a Biosensor

Bandremer A., Hebert A., Torosian S.D., Battacharyya D., Gleason K., McGraw S.K., Senecal A., Marek P., Food and Drug Administration, US

Effective food safety monitoring is challenged by the necessity to identify human infection capable microorganisms at sufficient infective doses and consumption levels. Regulatory agencies have developed methods for assessing food safety based on currently available [...]

Real-time monitoring of pathogens and nanomarkers in water by resonance laser spectroscopy techniques

Moguilnaya T.Yu., Bobkov P.V., Tomilin V.A., Kononenko E.B., JSC “SERVET-M”, RU

We develop a new method, allowing real-time monitoring of pathogens and DNA in water. The method is based on an analysis of radiation spectra in near-IR region. We have applied this method for rapid analysis [...]

Potential artifacts when evaluating the ecotoxicological effects of nanomaterials

Petersen E.J., Henry T.B., Zhao J., MacCuspie R.I., Kirschling T.L., Xing B., Dobrovolskaia M.A., Hackley V., White J.C., National Institute of Standards and Technology, US

Novel physicochemistries of engineered nanomaterials (ENMs) offer considerable commercial potential for new products and processes, but also the possibility of unforeseen and negative consequences upon ENM release into the environment. Investigations of ENM ecotoxicity have [...]

Assessment by Ames Test and Comet Assay of Toxicity Potential of Polymers Used to Develop a Field Capable Biosensor

Hebert A., Torosian S., Gleason K., Food and Drug Adminstration, US

Current methods of detecting food-borne pathogens take days to show and confirm results. There is a need for devices that decrease detection time. A field-capable rapid-detection device is being developed and in this study it [...]

Advancements in Microelectronics-Grade Carbon Nanotube Materials for NRAM® Device Manufacture and Analysis of Carbon Nanotube Mass in End User Devices

Lamb J.E., Gibbons S., Trichur R., Jiang Y., Mangelson K., Kremer K., Janzen D., Brewer Science, Inc, US

Providing materials for use in semiconductor manufacturing is challenging due to the extreme quality levels required for low metal ion and defect levels. This challenge is much greater for suppliers of materials containing long, high-aspect-ratio [...]

Environmental Monitoring Technologies

Single molecule SERS leads to the observation of the intermediate form of green fluorescent protein chromophore

Shafiq N.Z., Shafayet Khurshid Md., Kaan Kalkan A., Oklahoma State University, US

The dominant absorption band at 395 nm of the green fluorescent protein (GFP) is attributed to the protonated form of the chromophore. Photo excitation forms an excited intermediate anion from this excited protonated form and [...]

Platinum Bowtie Nanostructure Arrays for Massively Parallel Single Molecule Detection Based on Fluorescence Enhancement Phenomena

Saito T., Takahashi S., Obara T., Itabashi N., Imai K., Hitachi High-Technologies Corporation, JP

To enable not only long sequence read but also high throughput in a DNA sequencer, the single molecule sequencing method based on direct observation of processive DNA polymerization is very promising. In this method, only [...]

A Study of Protein Filaments Sliding through Solid-State Nanopores

McMullen A., Mihovilovic M., Stein D., Tang J.X., Brown University, US

The use of nanopores to study DNA has been the topic of intense research over the past decade. Nanopores have been used to probe the structure and electro-physical properties of DNA. These studies have been [...]