12 documents found, page 1 of 2

Sort by Issue Date


Self-powered biosensor towards glucose diagnostic in Point-of-Care

Vinagre, Inês; Alves, Joaquim; Moreira, Felismina T.C.

Monitoring blood glucose levels is of great importance, especially for people at high risk of developing diabetes. To this end, an innovative biosensor device has been developed that uses a miniaturized and membraneless enzymatic fuel cell (EFC) as an electrical reader box for diabetes diagnosis at the point-of-care. Gold screen-printed electrodes (Au-SPE) were modified with the enzyme glucose oxidase (GOx), wh...


Plastic antibody for the diagnosis of acute myocardial infarction

Ricardo, Jacinta; Martins, Gabriela V.; Moreira, Felismina T.C.

(Introduction) Myoglobin (Myo) is the first cardiac biomarker to be released into the bloodstream after the onset of symptoms of Acute Myocardial Infarction (AMI), allowing earlier detection of this disease. Novel application based on Plastic Antibody that responds to a cardiac biomarker, Myo. Imprint stage with electropolymerization of ortho-phenylenediamine (OPD) in the presence of Myo. Template removal from ...


Enhanced detection with prussian blue-based nanocubes: a novel electrochemical ...

Santos, Andréa dos; Oliveira, Daniela; Martins, Gabriela; Moreira, Felismina T.C.

(Introduction) Early diagnosis of biomarkers is crucial for optimizing treatments and increasing survival rates. Direct and cost-effective assays are important for point-of-care (PoC) testing. Bovine serum albumin (BSA) monitoring indicates liver and kidney function and aids in the assessment of diseases such as cirrhosis and chronic kidney disease. An innovative electrochemical biosensor was developed in which...


Plastic antibody for the diagnosis of acute myocardial infarction

Ricardo, Jacinta; Martins, Gabriela; Moreira, Felismina T.C.

(Introduction) Novel application Plastic Antibody that responds to a cardiac biomarker, myoglobin (Myo). Imprint stage with electropolymerization of ortho-phenylenediamine (OPD) in the presence of Myo. Template removal from polymeric matrix digested by trypsin. The films acted as biomimetic artificial antibodies and were fabricated on a screen-printed platinium (Pt) electrode (SPE) modified with electroactive P...


Integration of microfluidics and nanoezyme peroxidase for colorimetric detectio...

Sousa, Cristina; Chiussi, Stefano; Moreira, Felismina T.C.

The integration of Microfluidics and Nanozyme peroxidase for the Colorimetric detection of Neurotransmitters represents a cutting-edge approach in neurochemical analysis. Microfluidics allows precise manipulation of small fluid volumes, reducing reagent consumption and accelerating reactions while integrating multiple analytical steps on a single chip. Nanozyme peroxidases, mimicking natural peroxidases, provid...


Development of a novel electrochemical biosensor based on plastic antibodies fo...

Carvalho, Margarida; Rocha, Sandra Moreira; Barroca-Ferreira, Jorge; Maia, Claudio J.; Guillade, Lucía; Correa-Duarte, Miguel A.; Passarinha, Luís A.

STEAP1 is a cell surface protein of the STEAP family whose main function focuses on intercellular communication and cell growth. STEAP1 is considered a promising putative biomarker and a candidate target for prostate cancer treatment. For specific and selective detection of STEAP1, a molecularly imprinted polymers (MIP) was developed on a screen-printed electrode (C-SPE) whose surface was modified with a nanoco...


Electrochemical miRNA-34a-based biosensor for the diagnosis of Alzheimer’s disease

Pereira, Raquel L.; Oliveira, Daniela; Pêgo, Ana P.; Santos, Sofia D.; Moreira, Felismina T.C.

Alzheimer's disease (AD) is the most common dementia type and a leading cause of death and disability in the elderly. Diagnosis is expensive and invasive, urging the development of new, affordable, and less invasive diagnostic tools. The identification of changes in the expression of non-coding RNAs prompts the development of diagnostic tools to detect disease-specific blood biomarkers. Building on this idea, t...


Electrochemical miRNA-34a-based biosensor for the diagnosis of Alzheimer’s disease

Pereira, Raquel L.; Oliveira, Daniela; Pêgo, Ana P.; Santos, Sofia D.; Moreira, Felismina T.C.

Alzheimer's disease (AD) is the most common dementia type and a leading cause of death and disability in the elderly. Diagnosis is expensive and invasive, urging the development of new, affordable, and less invasive diagnostic tools. The identification of changes in the expression of non-coding RNAs prompts the development of diagnostic tools to detect disease-specific blood biomarkers. Building on this idea, t...


Transdermal electrochemical sensing: Combining microneedles with molecularly im...

Oliveira, Daniela; Correia, Bárbara P.; Sharma, Sanjiv; Moreira, Felismina T.C.

Biomarkers from interstitial skin fluid (ISF) complement conventional biofluids for point-of-care testing and real-time monitoring. In this study, we propose a new approach that combines microneedle technology with molecularly imprinted polymers to improve transdermal electrochemical sensing. The molecularly imprinted polymer, which acts like a plastic antibody, is easy to synthesis and scalable, offering a low...


12 Results

Queried text

Refine Results

Author





















Date





Document Type



Funding



Access rights



Resource


Subject