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Browsing by Author "Smith, Suzanne"

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Connected, low-cost point-of-care diagnostics for rural South African clinics

Author: Smith, Suzanne ; Land, Kevin ; Korvink, JG ; Mager, D Date: Oct 2017 In rural settings, the implementation of data connectivity for point-of-care (POC) diagnostics is becoming increasingly important, but introduces complex challenges, where cost, infrastructure, and training of staff need to be balanced if ... Read more
Development of a printed paperbased origami electrochemical sensor for the detection of heavy metals in water

Author: Madzivhandila, Phophi ; Smith, Suzanne ; Ntuli, Letta ; Land, Kevin J Date: Oct 2018 This paper presents a printed paper-based origami electrochemical sensor for the detection of heavy metals in water. Heavy metal contamination in water has significant health risks and environmental complications. The detection is typically ... Read more
Development of paper-based electrochemical sensors for water quality monitoring

Author: Smith, Suzanne ; Bezuidenhout, Petroné ; Mbanjwa, Mesuli ; Zheng, Haitao ; Conning, Mariette Date: Sep 2016 We present a method for the development of paper-based electrochemical sensors for detection of heavy metals in water samples. Contaminated water leads to serious health problems and environmental issues. Paper is ideally suited for point-of-care ... Read more
Development of paper-based wireless communication modules for point-of-care diagnostic applications

Author: Smith, Suzanne ; Bezuidenhout, Petroné ; Land, Kevin ; Korvink, JG ; Mager, D Date: Sep 2016 We present an ultra-high frequency radio frequency identification based wireless communication set-up for paper-based point-of-care diagnostic applications, based on a sensing radio frequency identification chip. Paper provides a low-cost, ... Read more
The effect of g-C3N4 materials on Pb(II) and Cd(II) detection using disposable screen-printed sensors

Author: Zheng, Haitao ; Ntuli, Letta ; Mbanjwa, Mesuli ; Palaniyandy, Nithyadharseni ; Smith, Suzanne ; Modibedi, Remegia M ; Land, Kevin J ; Mathe, Mahlanyane K Date: Dec 2018 The disposable electrochemical sensors were designed and fabricated onto a photo paper substrate in-house. We report a first case use of g-C3N4, which is an emerging material as the most stable carbon-like polymer, explored for application ... Read more
First advanced open labware workshop and rapid prototyping solutions for research challenges in Africa

Author: Smith, Suzanne ; Land, Kevin J ; Bezuidenhout, L ; Chagas, AM Date: Nov 2018 We report on a workshop based on open source principles to implement innovative solutions for laboratories and science applications in Africa. Specifically, 3D printed designs and electronic circuit designs implemented by different research ... Read more
Functional screen printed radio frequency identification tags on flexible substrates, facilitating low-cost and integrated point-of-care diagnostics

Author: Smith, Suzanne ; Oberholzer, Adelaide E ; Land, Kevin J ; Korvink, JG ; Mager, D Date: May 2018 This work explores the practical functionality of ultra-high frequency (UHF) radio frequency identification (RFID) tags screen printed onto various low-cost, flexible substrates. The need for integrated and automated low-cost point-of-care ... Read more
A low-cost potentiostat for point-of-need diagnostics

Author: Bezuidenhout, Petrone H ; Smith, Suzanne ; Land, Kevin J ; Joubert, T-H Date: Sep 2017 The work presented details the development of a lowcost potentiostat, with the aim of creating an ink-jet printed hybrid paper-based low-cost sensing system for rapid water quality monitoring. Potentiostats exhibit high sensitivities and can ... Read more
Microfluidic cartridges for automated, point-of-care blood cell counting

Author: Smith, Suzanne ; Madzivhandila, Phophi ; Sewart, R ; Govender, Ureshnie ; Becker, H ; Roux, Pieter ; Land, Kevin J Date: Nov 2016 Disposable, low-cost microfluidic cartridges for automated blood cell counting applications are presented in this article. The need for point-of-care medical diagnostic tools is evident, particularly in low-resource and rural settings, and a ... Read more
Novel functionalities of hybrid paper-polymer centrifugal devices for assay performance enhancement

Author: Wiederoder, MS ; Smith, Suzanne ; Madzivhandila, Phophi ; Mager, D ; Moodley, Kavandren ; DeVoe, DL ; Land, Kevin J Date: Sep 2017 The presented work demonstrates novel functionalities of hybrid paper-polymer centrifugal devices for assay performance enhancement that leverage the advantages of both paper-based and centrifugal microfluidic platforms. The fluid flow is ... Read more
The potential of paper-based diagnostics to meet the ASSURED criteria

Author: Smith, Suzanne ; Korvink, JG ; Mager, D ; Land, Kevin J Date: Oct 2018 Paper-based diagnostics have already revolutionized point-of-care approaches for health and environmental applications, by providing low-cost, disposable tools that can be utilized in remote settings. These devices typically consist of ... Read more
Printed paper–based electrochemical sensors for low-cost point-of-need applications

Author: Smith, Suzanne ; Madzivhandila, Phophi ; Ntuli, Letta ; Bezuidenhout, Petrone H ; Zheng, Haitao ; Land, Kevin J Date: Feb 2019 Paper-based microfluidics is a rapidly developing field with applications for point-of-care disease and environmental diagnostics. In parallel, printed electronics has grown swiftly, particularly for wearable technologies. By combining these ... Read more
Printed RFID tags on paper and flexible substrates towards low-cost connected sensor systems

Author: Smith, Suzanne ; Oberholzer, Adelaide E ; Land, Kevin J ; Korvink, JG ; Mager, D Date: Nov 2018 We present printed sensing radio frequency identification (RFID) tags on different paper and flexible substrates towards low-cost, automated connected sensor solutions. Combining the Internet of Things (IoT) with printed electronics and ... Read more
Printed wireless devices for low-cost, connected sensors for point-of-care applications

Author: Smith, Suzanne ; Bezuidenhout, Petrone H ; Land, Kevin J ; Korvink, JG ; Mager, D Date: Nov 2017 Resource-limited settings require point-of-care (POC) diagnostic solutions that can be rapidly manufactured at a low cost. These solutions require efficient ways to communicate data, and are therefore ideally suited to the internet of things ... Read more
Printed, flexible wireless temperature logging system

Author: Smith, Suzanne ; Madzivhandila, Phophi ; Oberholzer, Adelaide ; Land, Kevin J ; Korvink, JG ; Mager, D Date: Oct 2018 The internet of things (IoT) has resulted in accelerated development of intelligent and connected devices. Important modules include those for monitoring of environmental parameters and sensors for health diagnostic applications. Flexible, ... Read more
Rapid prototyping of centrifugal microfluidic modules for point of care blood testing

Author: Madzivhandila, Phophi ; Smith, Suzanne ; Roux, Pieter ; Land, Kevin ; Wiederoder, Michael Date: Nov 2016 We present modular centrifugal microfluidic devices that enable a series of blood tests to be performed towards a full blood count. The modular approach allows for rapid prototyping of device components in a generic format to complete different ... Read more

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