Results 41 to 50 of about 134,083 (309)

Graphene biosensors for bacterial and viral pathogens [PDF]

open access: yes, 2020
The infection and spread of pathogens (e.g., COVID-19) pose an enormous threat to the safety of human beings and animals all over the world. The rapid and accurate monitoring and determination of pathogens are of great significance to clinical diagnosis,
Qing, Taiping   +5 more
core   +1 more source

Recent Aptamer-Based Biosensors for Cd2+ Detection [PDF]

open access: yes, 2023
Cd2+, a major environmental pollutant, is heavily toxic to human health. Many traditional techniques are high-cost and complicated; thus, developing a simple, sensitive, convenient, and cheap monitoring approach is necessary.
Yin Wang   +5 more
core   +1 more source

Wavelet-Based Demodulation of Multimode Etched Fiber Bragg Grating Refractive Index Sensor

open access: yesSensors, 2018
Etched fiber Bragg grating (EFBG)-based sensors are used as evanescent field sensors for refractive index detection. When the fiber thickness is thin and the refractive index sensitivity increases, the number of propagating modes increases, resulting in ...
Takhmina Ayupova   +6 more
doaj   +1 more source

Optimization of Sensors to be Used in a Voltammetric Electronic Tongue Based on Clustering Metrics

open access: yesSensors, 2020
Herein we investigate the usage of principal component analysis (PCA) and canonical variate analysis (CVA), in combination with the F factor clustering metric, for the a priori tailored selection of the optimal sensor array for a given electronic tongue (
Munmi Sarma   +3 more
doaj   +1 more source

Isolation and in vitro characterization of novel S. epidermidis phages for therapeutic applications

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
S. epidermidis is an important opportunistic pathogen causing chronic prosthetic joint infections associated with biofilm growth. Increased tolerance to antibiotic therapy often requires prolonged treatment or revision surgery. Phage therapy is currently
Vida Štrancar   +9 more
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

Electrochemical Biosensors Employing Natural and Artificial Heme Peroxidases on Semiconductors [PDF]

open access: yes, 2020
Heme peroxidases are widely used as biological recognition elements in electrochemical biosensors for hydrogen peroxide and phenolic compounds. Various nature-derived and fully synthetic heme peroxidase mimics have been designed and their potential for ...
Wollenberger, Ulla (Prof. Dr.)   +3 more
core   +1 more source

Etched Fiber Bragg Grating Biosensor Functionalized with Aptamers for Detection of Thrombin

open access: yesSensors, 2018
A biosensor based on an etched Fiber Bragg Grating (EFBG) for thrombin detection is reported. The sensing system is based on a Fiber Bragg Grating (FBG) with a Bragg wavelength of 1550 nm, wet-etched in hydrofluoric acid (HF) for ~27 min, to achieve ...
Aliya Bekmurzayeva   +7 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Comparative Study of Gold and Carbon Nanoparticles in Nucleic Acid Lateral Flow Assay

open access: yesNanomaterials, 2021
A lateral flow assay (LFA) is a paper-based, point-of-need test designed to detect a specific analyte in complex samples in low-resource settings. Although LFA has been successfully used in different applications, its use is still limited when high ...
Juan Carlos Porras   +5 more
doaj   +1 more source

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