Optical immunosensor panel using quantum dot-antibody conjugates for highly sensitive detection of carbohydrate antigen 19-9 (CA19-9).

This study introduces a fluorescent immunosensor colour panel with antibody-conjugated quantum dots for detecting CA19-9 in human serum. The immunosensors presented decreasing fluorescence with increasing CA19-9 concentrations, with a linear detection range from 0.01 to 501.

Assessment of access to first contact in the perspective of professionals.

Objectives: to evaluate the "access to first contact" attribute, from the perspective of Primary Care Health professionals.

Methods: an evaluative and cross-sectional study, carried out from February to March 2017. The sample consisted of 163 health professionals, of both genders, who worked in the basic care of the Municipality of Juazeiro do Norte, Ceará.

Assessment of the attribute "Community Orientation" from the perspective of primary care adult users.

Objective: To assess the presence and extension of the attribute "Community Orientation" of Primary Health Care from the perspective of health services adult users from the Municipality of Juazeiro do Norte-CE.

Methods: Quantitative, cross-sectional and evaluative study, carried out in 14 Basic Health Units, from October 2016 to June 2017, using the Primary Care Assessment Tool.

Results: The attribute assessment was negative, reaching expressive negative responses in the seven districts, with a mean score of 3.