Replies to post #13342 on PositiveID Corporation (fka PSID)

[I12B007]

For once, we agree

[Sparky635]

Robsct Monday, 03/24/14 05:10:52 PM
Re: Sparky635 post# 13341
Post # of 13344

Show us the better technology...that's just BS talking there.


Beside advances made by Luminex PCR based xMap system and their
Automated Multiplexed Immunoassays System, that is in my opinion HAS greatly improved.

And discounting maybe a farfetched approach that CosmosID is taking is to develop algorithms that take unassembled reads from a metagenomic microbial samples and return, within minutes, identification at or near the strain level and can identify and distinguish between strains of Escherichia coli O157:H7, only one of which was responsible for outbreaks of human illness. Very cool but not ready for prime time.

My two favorites are:

BIO-FLASH -Rapid Detection of Pathogens in Aerosol Samples
When loaded into the BIO-FLASH instrument, the center of the compact disc–sized collector sits in an airstream and, as it spins, collects air in 1 of 16 radial channels, each fitted with a light sensor. . Almost as soon as the reagents come in contact with the sample, light emission occurs if the target organism or protein is present, triggering a visual and audible alarm. The device can be configured to assay for the same pathogen multiple times in the disc, run positive and negative controls, and retain a sample for later recovery and analysis. The instrument also has the ability to upload data to a remote location. Tests have shown that the system is capable of identifying with 100 percent accuracy the biological agents in aerosol samples containing between 75 and 450 agent-containing aerosol particles per liter of air, which he said meets or exceeds the targets set by the BioWatch program

REBS -Detecting Biothreats with Raman Spectroscopy
In field tests, the REBS system has demonstrated sensitivity below the lower limit set by the BioWatch program and has produced no false-positives in actual environmental testing. The system, which can be updated to accommodate new threats in 24 hours, collects continuously and stores an environmental particulate history that can be accessed and reexamined if necessary. Bartko said that REBS is not meant to provide an end result but rather to act as an alert signal that will require further confirmation using other methods. The cost per sample analysis is less than 1 cent, and each portable, battery-powered instrument costs less than $100,000


Cited from Technologies to Enable Autonomous Detection for Biowatch

Copyright 2014 by the National Academy of Science - REALLY ROBERT LOOK AT REAL & RECENT RESEARCH, not the 2007-2009 Citations we have all become extremely bored with. IMO & yours truly, SPARKY!