Browsing by Author "Justino, Celine I. L."
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- Disposable sensors for environmental monitoring of lead, cadmium and mercuryPublication . Duarte, Katia; Justino, Celine I. L.; Freitas, Ana C.; Gomes, Ana M. P.; Duarte, Armando; Rocha-Santos, Teresa A. P.Miniaturization is an increasing trend in the field of analytical chemistry as a response to the need to develop new analytical techniques for food, clinical, and environmental applications. There is therefore also an increasing trend towards the use of miniaturized disposable sensors, which are inexpensive and designed to be one-shot and do not require pre-treatment prior to use or cleaning between measurements. This review describes disposable sensors for detection of lead, cadmium and mercury in the environment, taking into account their analytical performance. Further, we also discuss the role of certain factors, such as the immobilization procedure and surface modification affecting the analytical characteristics of sensors. Finally, we comment on future applications and potential research interest in this field.
- Graphene based sensors and biosensorsPublication . Justino, Celine I. L.; Gomes, Ana R.; Freitas, Ana C.; Duarte, Armando C.; Rocha-Santos, Teresa A. P.Graphene has contributed to the fabrication of sensitive sensors and biosensors due to its physical and electrochemical properties. This review discusses the role of graphene and graphene related materials for the improvement of the analytical performance of sensors and biosensors. This paper also provides an overview of recent graphene based sensors and biosensors (2012–2016), comparing their analytical performance for application in clinical, environmental, and food sciences research, and comments on future and interesting research trends in this field.