Optical immunosensor for fast and sensitive detection of DDT and related compounds in river water samples

Mauriz, Elba; Calle, A.; Manclús, Juan J.; Montoya, Ángel; Hildebrandt, Alain; Barceló, Damià; Lechuga, Laura M.

doi:10.1016/j.bios.2006.06.016

Cited by 73 publications

(30 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The size and the electronic configuration of the device allow its portability and utilization at contaminated locations. 68 Another SPR-based immunosensor for DDT, its metabolites, and analogues in real water samples was developed by Mauriz et al 69 Low limits of detection (LODs), in the sub-nanogram per liter range, were attained for DDT-selective (15 ng l À1 ) and DDT group-selective immunoassays (31 ng l À1 ). The SPR analysis of DDT proved to be three times more sensitive than colorimetric ELISAs without the need of labeling combined with a much shorter time of response.…”

Section: Surface Plasmon Resonance (Srp) Sensorsmentioning

confidence: 99%

Electrochemical Sensors in Environmental Analysis

Cristea

Feier

Săndulescu

2014

Environmental Analysis by Electrochemical Sensors and Biosensors

View full text Add to dashboard Cite

Section: Surface Plasmon Resonance (Srp) Sensorsmentioning

confidence: 99%

Electrochemical Sensors in Environmental Analysis

Cristea

Feier

Săndulescu

2014

Environmental Analysis by Electrochemical Sensors and Biosensors

View full text Add to dashboard Cite

“…L.M. Lechuga’s group, in collaboration with D. Barceló’s group has been used this system to determine atrazine, [302], organochlorine (DDT) and its metabolites [303], carbaryl [304], chlorpyrifos [305–307] in natural water samples, 3,5,6-trichloro-2-2-pyridinol (TPC), a metabolite of chlorpyrifos in urine samples [308] and human growth hormone (hGH) in human serum samples [309]. Multi-analyte detection of environmentally relevant pesticides was carried out by the commercial SPR device with a special design.…”

Section: Optical Sensorsmentioning

confidence: 99%

State-of-the-Art of (Bio)Chemical Sensor Developments in Analytical Spanish Groups

Plata

Contento

Ríos

2010

Sensors

View full text Add to dashboard Cite

(Bio)chemical sensors are one of the most exciting fields in analytical chemistry today. The development of these analytical devices simplifies and miniaturizes the whole analytical process. Although the initial expectation of the massive incorporation of sensors in routine analytical work has been truncated to some extent, in many other cases analytical methods based on sensor technology have solved important analytical problems. Many research groups are working in this field world-wide, reporting interesting results so far. Modestly, Spanish researchers have contributed to these recent developments. In this review, we summarize the more representative achievements carried out for these groups. They cover a wide variety of sensors, including optical, electrochemical, piezoelectric or electro-mechanical devices, used for laboratory or field analyses. The capabilities to be used in different applied areas are also critically discussed.

show abstract

“…The wavevector condition can also be matched by patterning a diffraction grating in the metal surface ( Fig. 1 B): (4) where Λ is the spatial period of the grating and P the diffraction order. In addition, the SPP can be excited thought the evanescent field of the guided light within an optical waveguide (Fig.…”

Section: Introductionmentioning

confidence: 99%

Surface plasmon resonance biosensors for highly sensitive detection in real samples

et al. 2009

View full text Add to dashboard Cite

In this work we summarize the main results obtained with the portable surface plasmon resonance (SPR) device developed in our group (commercialised by SENSIA, SL, Spain), highlighting its applicability for the real-time detection of extremely low concentrations of toxic pesticides in environmental water samples. In addition, we show applications in clinical diagnosis as, on the one hand, the real-time and label-free detection of DNA hybridization and single point mutations at the gene BRCA-1, related to the predisposition in women to develop an inherited breast cancer and, on the other hand, the analysis of protein biomarkers in biological samples (urine, serum) for early detection of diseases.Despite the large number of applications already proven, the SPR technology has two main drawbacks: (i) not enough sensitivity for some specific applications (where pM-fM or single-molecule detection are needed) (ii) low multiplexing capabilities. In order solve such drawbacks, we work in several alternative configurations as the Magneto-optical Surface Plasmon Resonance sensor (MOSPR) based on a combination of magnetooptical and ferromagnetic materials, to improve the SPR sensitivity, or the Localized Surface Plasmon Resonance (LSPR) based on nanostructures (nanoparticles, nanoholes,…), for higher multiplexing capabilities.

show abstract

Optical immunosensor for fast and sensitive detection of DDT and related compounds in river water samples

Cited by 73 publications

References 22 publications

Electrochemical Sensors in Environmental Analysis

Electrochemical Sensors in Environmental Analysis

State-of-the-Art of (Bio)Chemical Sensor Developments in Analytical Spanish Groups

Surface plasmon resonance biosensors for highly sensitive detection in real samples

Contact Info

Product

Resources

About