Development of nanomechanical biosensors for detection of the pesticide DDT

Álvarez, Mar; Calle, A.; Tamayo, Javier; Lechuga, Laura M.; Abad, Antonio; Montoya, Ángel

doi:10.1016/s0956-5663(03)00035-6

Cited by 160 publications

(98 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Detection of chlorinated or nitro compounds in the environments is a very important problem because they affect human lives as the relics of agricultural chemicals or explosives [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Fluorescence quenching of versatile fluorescent probes based on strongly electron-donating distyrylbenzenes responsive to aromatic chlorinated and nitro compounds, boronic acid and Ca2+

Motoyoshiya

Fengqiang

Nishii

et al. 2008

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

View full text Add to dashboard Cite

The fluorescence quenching behavior of two distyrylbenzenes (DSBs) newly prepared bearing strongly electron-donating groups was investigated. Several chlorinated and nitro compounds quench the fluorescence of both DSBs with various efficiencies depending on the electron-withdrawing properties; the strongly electron-withdrawing compound, such as 2,4,5-trichlorophenol and 2,4-dinitrofluorobenzene, effectively diminish the fluorescence intensities of the DSBs. Since the fluorescence quenching constants and the reduction potentials of the quenchers are linearly related, these quenching phenomena are attributed to the photo-induced electron transfer (PET) process. The fluorescence quenching was also detected in the interaction between the azacrown DSB and phenylboronic acid, while the fluorescence recovers by adding triethylamine. On the other hand, the azacrown DSB selectively interacts with Ca 2+ to decrease its fluorescence intensity, but the DSB with the dimethylamino groups did not. These results suggest a potential use of these types of compounds as sensors for strongly electron-withdrawing substances and a suitable metal cation.

show abstract

Section: Introductionmentioning

confidence: 99%

Fluorescence quenching of versatile fluorescent probes based on strongly electron-donating distyrylbenzenes responsive to aromatic chlorinated and nitro compounds, boronic acid and Ca2+

Motoyoshiya

Fengqiang

Nishii

et al. 2008

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

View full text Add to dashboard Cite

show abstract

“…Surface stress changes on one side of the cantilever due to the adsorption of molecules result in a bending of the cantilever. Detection of for example DNA [2], proteins [3], pesticides [4] and TNT explosives [5] has been demonstrated with cantilever-based sensors.…”

Section: Introductionmentioning

confidence: 99%

Epoxy based photoresist/carbon nanoparticle composites

Lillemose

Gammelgaard

Richter

et al. 2008

Composites Science and Technology

View full text Add to dashboard Cite

“…Other target molecules include micro-RNA (miRNA) [24,28], a biomarker for cancer, DNA [15,20,25,30,34,61,122], herpes simplex-2 virus infection [5] and common drinking water contaminants including E. coli [45], pesticides [22,35], synthetic oestrogen in river water [21] and heavy metals [3,[162][163][164].…”

Section: Applicationsmentioning

confidence: 99%

Theory, fabrication and applications of microfluidic and nanofluidic biosensors

Prakash

Pinti

Bhushan

2012

Phil. Trans. R. Soc. A.

View full text Add to dashboard Cite

Biosensors are a broad array of devices that detect the type and amount of a biological species or biomolecule. Several different types of biosensors have been developed that rely on changes to mechanical, chemical or electrical properties of the transduction or sensing element to induce a measurable signal. Often, a biosensor will integrate several functions or unit operations such as sample extraction, manipulation and detection on a single platform. This review begins with an overview of the current state-of-the-art biosensor field. Next, the review delves into a special class of biosensors that rely on microfluidics and nanofluidics by presenting the underlying theory, fabrication and several examples and applications of microfluidic and nanofluidic sensors.

show abstract

Development of nanomechanical biosensors for detection of the pesticide DDT

Cited by 160 publications

References 14 publications

Fluorescence quenching of versatile fluorescent probes based on strongly electron-donating distyrylbenzenes responsive to aromatic chlorinated and nitro compounds, boronic acid and Ca2+

Fluorescence quenching of versatile fluorescent probes based on strongly electron-donating distyrylbenzenes responsive to aromatic chlorinated and nitro compounds, boronic acid and Ca2+

Epoxy based photoresist/carbon nanoparticle composites

Theory, fabrication and applications of microfluidic and nanofluidic biosensors

Contact Info

Product

Resources

About