A cellulose-based bioassay for the colorimetric detection of pathogen DNA [PDF]
Cellulose-paper-based colorimetric bioassays may be used at the point of sampling without sophisticated equipment. This study reports the development of a colorimetric bioassay based on cellulose that can detect pathogen DNA.
Goyal, Madhu +3 more
core +1 more source
A novel colorimetric biosensor based on non-aggregated Au@Ag core–shell nanoparticles for methamphetamine and cocaine detection [PDF]
We report a novel colorimetric biosensor based on non-aggregation Au@Ag core-shell nanoparticles to detect methamphetamine and cocaine. The biosensor consisted of a reporter probe (RP) that is a specific single-stranded DNA (ssDNA) sequence coated on Au ...
Hu, Jiming +5 more
core +1 more source
High Sensitivity DNA Detection Using Gold Nanoparticle Functionalised Polyaniline Nanofibres [PDF]
Polyaniline (PANI) nanofibres (PANI-NF) have been modified with chemically grown gold nanoparticles to give a nanocomposite material (PANI-NF–AuNP) and deposited on gold electrodes. Single stranded capture DNA was then bound to the gold nanoparticles and
Barry, Thomas +8 more
core +1 more source
Ultrasensitive tapered optical fiber refractive index glucose sensor
Refractive index (RI) sensors are of great interest for label-free optical biosensing. A tapered optical fiber (TOF) RI sensor with micron-sized waist diameters can dramatically enhance sensor sensitivity by reducing the mode volume over a long distance.
Erem Ujah, Meimei Lai, Gymama Slaughter
doaj +1 more source
Functionalization Strategies of PEDOT and PEDOT:PSS Films for Organic Bioelectronics Applications
Organic bioelectronics involves the connection of organic semiconductors with living organisms, organs, tissues, cells, membranes, proteins, and even small molecules.
Gonzalo E. Fenoy +3 more
doaj +1 more source
Practical Characterization of Cell-Electrode Electrical Models in Bio-Impedance Assays [PDF]
This paper presents the fitting process followed to adjust the parameters of the electrical model associated to a cell-electrode system in Electrical Cell-substrate Impedance Spectroscopy (ECIS) technique, to the experimental results from cell-culture ...
Daza Navarro, María Paula +7 more
core +1 more source
Responsive materials and mechanisms as thermal safety systems for skin-interfaced electronic devices
Minimizing patient risk to thermal failure in wearable electronics typically requires complex circuit control, sensors, or passive materials. Here, Yoo et al.
Seonggwang Yoo +13 more
doaj +1 more source
A chemical sensor based on a photonic-crystal L3 nanocavity defined in a silicon-nitride membrane [PDF]
The application of a silicon-nitride based L3 optical nanocavity as a chemical sensor is explored. It is shown that by adjusting the thickness of an ultra-thin Lumogen Red film deposited onto the nanocavity surface, the fundamental optical mode undergoes
Brittle, Stuart +6 more
core +1 more source
Recent developments in the fields of materials science and engineering technology (mechanical, electrical, biomedical) lay the foundation to design flexible bioelectronics with dynamic interfaces, widely used in biomedical/clinical monitoring ...
Xu Guo +3 more
doaj +1 more source
The critical sensor: a new type of evanescent wave immunosensor [PDF]
A new planar waveguide immunosensor has been developed in which adsorption at a surface, changing the refractive index contrast, is measured. In this ¿critical¿ sensor the change in the effective refractive index contrast is transducted to a shift of the
Borreman, A. +3 more
core +3 more sources

