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Efficient removal of Cr (VI) and Cu (II) ions from aqueous media by use of polypyrrole/maghemite and polyaniline/maghemite magnetic nanocomposites
- A. E. Chávez-Guajardo, J. C. Medina-Llamas, L. Maqueira, C. Andrade, K. Alves, C. P. Melo
- Materials Science
- 1 December 2015
We examined the use of polypyrrole/maghemite (PPY/γ-Fe2O3) and polyaniline/maghemite (PANI/γ-Fe2O3) magnetic nanocomposites (MNCs) as active agents for removal of heavy metals ions from aqueous… Expand
Impedimetric biosensor based on self-assembled hybrid cystein-gold nanoparticles and CramoLL lectin for bacterial lipopolysaccharide recognition.
- Maria D L Oliveira, C. Andrade, M. T. S. Correia, L. Coelho, P. Singh, Xiangqun Zeng
- Chemistry, Medicine
- Journal of colloid and interface science
- 1 October 2011
We report the development of a new selective and specific electrochemical biosensor for bacterial lipolysaccharide (LPS). An electrode interface was constructed using a l-cysteine-gold nanoparticle… Expand
Detection of dengue virus serotypes on the surface of gold electrode based on Cratylia mollis lectin affinity
Abstract We describe the development of a biosystem to analyze the interactions between CramoLL lectin and fetuin to be applied in the detection of glycoprotein from the serum of patients… Expand
Optical and dielectric sensors based on antimicrobial peptides for microorganism diagnosis
- R. R. Silva, K. Y. P. S. Avelino, Kalline L Ribeiro, O. Franco, M. Oliveira, C. Andrade
- Biology, Medicine
- Front. Microbiol.
- 20 August 2014
Antimicrobial peptides (AMPs) are natural compounds isolated from a wide variety of organisms that include microorganisms, insects, amphibians, plants, and humans. These biomolecules are considered… Expand
Biosensor based on hybrid nanocomposite and CramoLL lectin for detection of dengue glycoproteins in real samples
a b s t r a c t We describe the development of a biosensor to distinguish abnormal glycoproteins of sera from patients infected with dengue serotypes I, II and III (DSI, DSII and DSIII). In addition,… Expand
Impedimetric immunoassay for aflatoxin B1 using a cysteine modified gold electrode with covalently immobilized carbon nanotubes
AbstractThe authors describe a label-free electrochemical biosensor based on CNTs for picogram range detection of the food carcinogen aflatoxin B1 (AFB1). A gold electrode was modified with a… Expand
Electrochemical immunosensor for dengue virus serotypes based on 4-mercaptobenzoic acid modified gold nanoparticles on self-assembled cysteine monolayers
- D. M. N. Luna, Karen Y.P.S. Avelino, M. Cordeiro, C. Andrade, Maria D.L. Oliveira
- 1 December 2015
Abstract Currently, Dengue is a worldwide health problem and no effective vaccine or specific medication. Thus, the development of new diagnostic methods has been the focus of efforts to combat the… Expand
Smartphone ownership and perspectives on health apps among a vulnerable population in East Harlem, New York.
Background Individuals from low-income and racial/ethnic minority backgrounds have traditionally had less access to mobile health (mHealth) technologies, but there is evidence that this gap has been… Expand
Impedimetric immunosensor for electronegative low density lipoprotein (LDL−) based on monoclonal antibody adsorbed on (polyvinyl formal)–gold nanoparticles matrix
Abstract Monoclonal antibodies (MAb) have been commonly applied to measure LDL in vivo and to characterize modifications of the lipids and apoprotein of the LDL particles. The electronegative low… Expand