Electrochemical biosensor for estrogenic substance using lipid bilayers modified by Au nanoparticles

Xia, Wei; Li, Yuanyuan; Wan, Yanjian; Tian, Chen; Wei, Jie; Lin, Yi; Xu, Shunqing

doi:10.1016/j.bios.2010.03.004

Cited by 49 publications

(27 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Another biosensor, using impedance as transduction mode, was fabricated by immobilizing ER-α in a supported bilayer lipid membrane modified with Au nanoparticles. (Xia et al, 2010) The results indicated that the biosensor was able to detect the natural estrogen 17 -estradiol with an acceptable linear correlation ranging from 5 to 150 ng/L and a detection limit of 1 ng/L. The biosensor could also detect bisphenol A and 4-nonylphenol.…”

Section: Estrogen Receptor-based Biosensorsmentioning

confidence: 70%

New Trends in Biosensors for Water Monitoring

Lagarde¹,

Jaffrézic‐Renault²

2011

Environmental Biosensors

View full text Add to dashboard Cite

Section: Estrogen Receptor-based Biosensorsmentioning

confidence: 70%

New Trends in Biosensors for Water Monitoring

Lagarde¹,

Jaffrézic‐Renault²

2011

Environmental Biosensors

View full text Add to dashboard Cite

“…Various materials have been used to retain the bioactivity of enzymes, such as magnetic nanoparticles [5], metal nanoparticles [86,151] and polymers [58,145]. Another alternative for biomolecule immobilization is the use of nanocrystalline TiO 2 matrix [134,135].…”

Section: Challenges For Functional Entrapment Of Biomolecules In Sol-gelmentioning

confidence: 99%

Enzyme Immobilization by Amperometric Biosensors with TiO2 Nanoparticles Used to Detect Phenol Compounds

et al. 2015

View full text Add to dashboard Cite

Nanoparticles of titanium dioxide (TiO 2 ) have unique properties in creating an appropriate microenvironment for immobilizing biomolecules without loss of biological activity, and facilitating electron transference between the enzyme and surface of the electrode. TiO 2 properties have led to its intensive use in building electrochemical biosensors. Another aspect is, the chemical process of sol-gel which offers new and interesting advantages in the encapsulation of biomolecules sensitive to heat and environmental conditions (enzymes, proteins, antibodies, and cells from plants, animals and micro-organisms), mainly due to a synthesized process at low temperatures. The nanomaterials produced by sol-gel have many advantages, including chemical inertia, physical rigidity, insignificant swelling in an aqueous medium, and porosity. For this reason, electrochemical biosensors consisting of nanomaterials have been extensively investigated and used in important industrial sectors, such as, those of pharmaceuticals, health, food, agriculture, and environment. They provide real-time data, which allows the control and traceability of each of the processes involved. Biosensors are devices that consist of one element of molecular recognition (biomolecules) and one transduction element. The objective of this work is to conduct a review of electrochemical biosensors using nanoparticles obtained from the sol-gel process and their potential application to measure phenol compounds.

show abstract

“…In the last section, we introduced some applications that combined AuNPs with carbon NMs [73,[84][85][86]. Besides that, AuNPs have also been modified with aptamers [98], lipid bilayers [97], and MIPs [99].…”

Section: Electrochemical Sensors Based On Metal and Metal-oxide Nanopmentioning

confidence: 99%

“…Xia et al [97] fabricated a biosensor by immobilizing estrogen receptors in a supported bilayer lipid membrane modified with AuNPs for detection and monitoring of estrogenic chemicals in water samples. The LOD for 17b-estradiol was 1 ng/L.…”

Section: Electrochemical Sensors Based On Metal and Metal-oxide Nanopmentioning

confidence: 99%

“…Various metal and metal-oxide NPs with different morphologies, such as AuNPs [97][98][99], NiNPs [100], CdSNPs [101], TiO 2 nanotubes [102], and ZnO nanotetrapods [103], have been used in electrochemical sensing of ECPs as electroactive probe or electrode modifier. In the last section, we introduced some applications that combined AuNPs with carbon NMs [73,[84][85][86].…”

Section: Electrochemical Sensors Based On Metal and Metal-oxide Nanopmentioning

confidence: 99%

See 1 more Smart Citation