bacteria – Page 3 – TechConnect Briefs

Bacterial Concentration Detection with Dielectrophoresis and Capacitive Measurement

Yoo J-H, Cha M.S., Lee J., Seoul National University, KR

The concentration of Escherichia coli (E.coli) cells in water was detected by depositing them on an array of electrodes using dielectrophoresis (DEP). Electrowetting was used to effectively concentrate the E.coli in a droplet of water [...]

A SERS substrate for detection of E.Coli on Nanostructured Poly(p-xylylene)

Kao P., Malvadkar N.A., Wang H., Allara D.L., Demirel M.C., Penn State University, US

Surface enhanced Raman (SERS) has an advantage of minimal sample preparation, low reagent costs and ease of operation in addition to more rapid and reliable biosensing technique when compared to other methods. Several methods have [...]

Multifunctional nanoparticle platforms for pathogen diagnostic applications

Kell A.J., Paquet C., Simard B., National Research Council, CA

Infectious diseases and bioterrorism are of tremendous global concern, and our group is interested in developing superparamagnetic nanoparticle platforms that can aid in the magnetic extraction/concentration and detection of harmful pathogens. This has led to [...]

Adsorption kinetics of bacteria onto a thin Fe3O4 magnetic nanofilm

Ansari F., Aref A., Libor S., Horvath R., Ramsden J.J., Cranfield University, UK

A range of bacteria have been shown to be able to remove sulfur from organic compounds that commonly exist in petroleum. The most extensively investigated microorganisms belong to the genus Rhodococcus, which has shown reasonably [...]

A Novel Technique for Purification and Segregation

Mangir T., Chaves J., Chaves S., Khairatkar M., Chaves J., Chaves S., California State University Long Beach, US

In paper we describe a technique to purify and segregate carbon nano tubes (CNTs) from the iron impurities to use the CNTs for thin films. After extensive research into a proper and repeatable cleaning process [...]

A Novel Technique for Purifiction and Segregation of CNT Using Inkjet Technology

Chaves J.S., Chaves S., Chaves J.S., Chaves S., Mangir T., California State University Long Beach, US

Since Carbon Nanotubes (CNT) were discovered in the early 90’s a whole new research field has evolved. CNTs have many properties that make them desirable for the construction of nano-scale Electronics. One area that is [...]

Utilizing Silver and Gold Nanoparticles for Investigation of Bacterial Cell Wall Biochemical Structure

Culha M., Kahraman M., Yazici M.M., Sahin F., Yeditepe University, TR

Understanding fundamental principles of living systems in their natural environment is always a challenge for scientists. The desire to design and construct novel diagnostic tools makes this understanding a significant prerequisite. Due to its “fingerprinting” [...]

Synthesis of a nano electro-magnetic polymer and its application in a DCT biosensor

Pal S., Hummel E.B., Alocilja E.C., Michigan State University, US

This experimental study was focused on the development of a nanomagnetic conductive polymer and its application in a direct-charge transfer biosensor (Figure1) for the detection of Bacillus species. A polyaniline-γFe2O3 nanocomposite transducer was first synthesized [...]

Bio-Detection and Chemical Fingerprinting using the Inductively Coupled Plasma Mass Spectrometer (ICP-MS) Technology

Adeyinka A., Kuzmanovic D., Schaefer D.M., Lev S., Towson University, US

In this project, we explored the bioaccumulation of a large variety of inorganic trace elements in Bacillus subtilis using an inductively coupled plasma mass spectrometer and compared it to other related and unrelated species. Bacillus [...]

Immunosensing Using Fabricated protein Microarrays

Howell S.W., Inerowicz H.D., Guirl L., Regnier F., Reifenberger R., Purdue University, US

Patterned microarrays of antibodies to specific bacteria were used to perform a series of bacterial immunoassays of E. Coli 0157:H7 and Renibacterium Salmoninarum (RS). Microarrays were fabricated using microcontact printing (MCP) and characterized using scanning [...]