A capacitive touch screen sensor for detection of urinary tract infections in portable biomedical devices

Carlos Honrado, Tao Dong


Incidence of urinary tract infections (UTIs) is the second highest among all infections; thus, there is a high demand for bacteriuria detection. Escherichia coli are the main cause of UTIs, with microscopy methods and urine culture being the detection standard of these bacteria. However, the urine sampling and analysis required for these methods can be both time-consuming and complex. This work proposes a capacitive touch screen sensor (CTSS) concept as feasible alternative for a portable UTI detection device. Finite element method (FEM) simulations were conducted with a CTSS model. An exponential response of the model to increasing amounts of E. coli and liquid samples was observed. A measurable capacitance change due to E. coli presence and a tangible difference in the response given to urine and water samples were also detected. Preliminary experimental studies were also conducted on a commercial CTSS using liquid solutions with increasing amounts of dissolved ions. The CTSS was capable of distinguishing different volumes of liquids, also giving an exponential response. Furthermore, the CTSS gave higher responses to solutions with a superior amount of ions. Urine samples gave the top response among tested liquids. Thus, the ...Continue Reading


Jan 1, 1975·American Journal of Clinical Pathology·J H Jorgensen, P M Jones
Jul 1, 1976·American Journal of Clinical Pathology·V A LambJ R Wilkins
Jun 1, 1991·Annals of Emergency Medicine·R F GochmanM B Heller
Jul 1, 1988·Clinical Microbiology Reviews·M T Pezzlo
May 1, 1987·Journal of Clinical Microbiology·C C Longoria, G A Gonzalez
Aug 1, 1985·Journal of Clinical Pathology·T K SmithR C Spencer
Oct 1, 1985·Journal of Clinical Microbiology·B M MalesD Amsterdam
Mar 1, 1982·Journal of Clinical Microbiology·M T PezzloL M de la Maza
Mar 1, 1995·Journal of the American Geriatrics Society·J G OuslanderJ F Schnelle
Dec 1, 2001·Journal of Clinical Pathology·J C Graham, A Galloway
Nov 26, 2003·Antimicrobial Agents and Chemotherapy·S CarlssonJ O Lundberg
Apr 15, 2004·The Journal of the American Board of Family Practice·Pesach Shvartzman, Yussuf Nasri
Dec 7, 2007·The Urologic Clinics of North America·Lindsay E Nicolle
Nov 26, 2010·The Medical Clinics of North America·Elodi J Dielubanza, Anthony J Schaeffer
Feb 26, 2011·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Stefano SalvatoreMarco Torella
Sep 9, 2011·Current Microbiology·Sarika AmdekarDesh Deepak Singh
Oct 28, 2011·Angewandte Chemie·Byoung Yeon Won, Hyun Gyu Park


Sep 27, 2016·Sensors·José Jair Alves MendesSergio Luiz Stevan
Sep 19, 2019·Scientific Reports·Quang Van DuongSeung Tae Choi

Related Concepts

Manufactured Supplies
Touch Sensation
Urinary Tract Infection
Technology, Health Care
Mobile Applications
Body Water
Escherichia coli
Ion Channel
Medical Devices

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Synthetic Genetic Array Analysis

Synthetic genetic arrays allow the systematic examination of genetic interactions. Here is the latest research focusing on synthetic genetic arrays and their analyses.

Neural Activity: Imaging

Imaging of neural activity in vivo has developed rapidly recently with the advancement of fluorescence microscopy, including new applications using miniaturized microscopes (miniscopes). This feed follows the progress in this growing field.

Computational Methods for Protein Structures

Computational methods employing machine learning algorithms are powerful tools that can be used to predict the effect of mutations on protein structure. This is important in neurodegenerative disorders, where some mutations can cause the formation of toxic protein aggregations. This feed follows the latests insights into the relationships between mutation and protein structure leading to better understanding of disease.

Congenital Hyperinsulinism

Congenital hyperinsulinism is caused by genetic mutations resulting in excess insulin secretion from beta cells of the pancreas. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Epigenetic Memory

Epigenetic memory refers to the heritable genetic changes that are not explained by the DNA sequence. Find the latest research on epigenetic memory here.

Cell Atlas of the Human Eye

Constructing a cell atlas of the human eye will require transcriptomic and histologic analysis over the lifespan. This understanding will aid in the study of development and disease. Find the latest research pertaining to the Cell Atlas of the Human Eye here.

Femoral Neoplasms

Femoral Neoplasms are bone tumors that arise in the femur. Discover the latest research on femoral neoplasms here.