The Singapore success story: public-private alliance for investment attraction, innovation and export development

Includes Bibliography

Public-private partnerships for innovation and export development: the Irish model of development

Includes Bibliography

Private international capital flows to Brazil

Includes bibliography

Private participation in the provision of water services: alternative means for private participation in the provision of water services

Includes bibliography

Do private sectors deficits matter?

Includes bibliography

Private internal debt in Colombia, 1970-1985

Includes bibliography

New label free CA125 detection based on gold nanostructured screen-printed electrode

This paper describes the optimisation and the analytical performances of a label-free impedimetric immunosensor for the detection of tumour marker CA125 based on gold nanoparticles modified screen-printed graphite electrode. Experimental conditions of each step for the developed immunosensor were studied and optimised. The immunosensor response varied linearly (r2 = 0.996) with antigen concentration between 0 and 100 U/mL. The estimated detection limit was 6.7 U/mL. The electrochemical immunosensor allowed unambiguous identification of CA125, while no significant non-specific signal was detected in the case of all negative controls. The analytical usefulness of the impedimetric immunosensor was finally demonstrated analysing serum samples. © 2012 Elsevier B.V. All rights reserved.

A different concept of the private sector, a different concept of the public sector: notes for a Latin American debate

Presenta un analisis historico comparativo del proceso de modernizacion en America Latina y Europa y reflexiona sobre el debate entre lo publico y lo privado en los procesos de desarrollo economico de America Latina.

Interaction between the public and private sectors and the overall efficiency of the economy

Includes bibliography

Latin America's return to the private international capital market

Includes bibliography

National private groups in Mexico, 1987-1993

Includes bibliography

Regulating the private provision of drinking water and sanitation services

Includes bibliography

The impact of public investment on private investment in Brazil, 1947-1990

Includes bibliography

An econometric analysis of private-sector investment in Brazil

Includes bibliography

An optimised electrochemical biosensor for the label-free detection of C-reactive protein in blood

C-reactive protein (CRP) is an acute phase protein whose levels are increased in many disorders. There exists, in particular, a great deal of interest in the correlation between blood serum levels and the severity of risk for cardiovascular disease. A sensitive, label-free, non-amplified and reusable electrochemical impedimetric biosensor for the detection of CRP in blood serum was developed herein based on controlled and coverage optimised antibody immobilization on standard polycrystalline gold electrodes. Charge transfer resistance changes were highly target specific, linear with log. CRP. concentration across a 0.5-50. nM range and associated with a limit of detection of 176. pM. Significantly, the detection limits are better than those of current CRP clinical methods and the assays are potentially cheap, relatively automated, reusable, multiplexed and highly portable. The generated interfaces were capable not only of comfortably quantifying CRP across a clinically relevant range of concentrations but also of doing this in whole blood serum with interfaces that were, subsequently, reusable. The importance of optimising receptor layer resistance in maximising assay sensitivity is also detailed. © 2012.