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Baeza M, López C, Alonso J, López-Santín J, Álvaro G. Ceramic Microsystem Incorporating a Microreactor with Immobilized Biocatalyst for Enzymatic Spectrophotometric Assays. Anal Chem 2009; 82:1006-11. [DOI: 10.1021/ac902267f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mireia Baeza
- Grup de Sensors i Biosensors, Departament de Química, Facultat de Ciències, Edifici C-Nord, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain, and Departament d’Enginyeria Química, Escola Tècnica Superior d’Enginyeria, Edifici Q, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain
| | - Carmen López
- Grup de Sensors i Biosensors, Departament de Química, Facultat de Ciències, Edifici C-Nord, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain, and Departament d’Enginyeria Química, Escola Tècnica Superior d’Enginyeria, Edifici Q, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain
| | - Julián Alonso
- Grup de Sensors i Biosensors, Departament de Química, Facultat de Ciències, Edifici C-Nord, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain, and Departament d’Enginyeria Química, Escola Tècnica Superior d’Enginyeria, Edifici Q, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain
| | - Josep López-Santín
- Grup de Sensors i Biosensors, Departament de Química, Facultat de Ciències, Edifici C-Nord, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain, and Departament d’Enginyeria Química, Escola Tècnica Superior d’Enginyeria, Edifici Q, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain
| | - Gregorio Álvaro
- Grup de Sensors i Biosensors, Departament de Química, Facultat de Ciències, Edifici C-Nord, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain, and Departament d’Enginyeria Química, Escola Tècnica Superior d’Enginyeria, Edifici Q, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain
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Discriminating foot-and-mouth disease virus-infected and vaccinated animals by use of beta-galactosidase allosteric biosensors. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2009; 16:1228-35. [PMID: 19553549 DOI: 10.1128/cvi.00139-09] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Recombinant beta-galactosidases accommodating one or two different peptides from the foot-and-mouth disease virus (FMDV) nonstructural protein 3B per enzyme monomer showed a drastic enzymatic activity reduction, which mainly affected proteins with double insertions. Recombinant beta-galactosidases were enzymatically reactivated by 3B-specific murine monoclonal and rabbit polyclonal antibodies. Interestingly, these recombinant beta-galactosidases, particularly those including one copy of each of the two 3B sequences, were efficiently reactivated by sera from infected pigs. We found reaction conditions that allowed differentiation between sera of FMDV-infected pigs, cattle, and sheep and those of naïve and conventionally vaccinated animals. These FMDV infection-specific biosensors can provide an effective and versatile alternative for the serological distinction of FMDV-infected animals.
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Ferraz RM, Rodríguez-Carmona E, Ferrer-Miralles N, Meyerhans A, Villaverde A. Screening HIV-1 antigenic peptides as receptors for antibodies and CD4 in allosteric nanosensors. J Mol Recognit 2009; 22:255-60. [DOI: 10.1002/jmr.940] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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