Results 31 to 40 of about 318,069 (262)

Aptamer-Based Nanoporous Anodic Alumina Interferometric Biosensor for Real-Time Thrombin Detection

open access: yesSensors, 2019
Aptamer biosensors are one of the most powerful techniques in biosensing. Achieving the best platform to use in aptamer biosensors typically includes crucial chemical modifications that enable aptamer immobilization on the surface in the most efficient ...
Laura Pol   +3 more
doaj   +1 more source

Effects of High-Biotin Sample Interference on Antibody Concentrations in Sandwich Immunoassays

open access: yesVaccines, 2023
The use of antimicrobial growth promoters (AGPs) is banned because of problems associated with drug residues in animal products and increased bacterial resistance. The immunization of chickens with specific antigens is a promising strategy for generating
Geraldo Balieiro Neto   +4 more
doaj   +1 more source

Giant Magnetoresistive Biosensors for Time-Domain Magnetorelaxometry: A Theoretical Investigation and Progress Toward an Immunoassay. [PDF]

open access: yes, 2017
Magnetorelaxometry (MRX) is a promising new biosensing technique for point-of-care diagnostics. Historically, magnetic sensors have been primarily used to monitor the stray field of magnetic nanoparticles bound to analytes of interest for immunoassays ...
Hall, Drew A   +2 more
core   +1 more source

Novel components of the Toxoplasma inner membrane complex revealed by BioID. [PDF]

open access: yes, 2015
UNLABELLED:The inner membrane complex (IMC) of Toxoplasma gondii is a peripheral membrane system that is composed of flattened alveolar sacs that underlie the plasma membrane, coupled to a supporting cytoskeletal network. The IMC plays important roles in
Bell, Hannah N   +11 more
core   +3 more sources

Insights into the structure of mature streptavidin C1 from Streptomyces cinnamonensis reveal the self-binding of the extension C-terminal peptide to biotin-binding sites

open access: yesIUCrJ, 2021
The members of the avidin protein family are well known for their high affinity towards d-biotin and their structural stability. These properties make avidins a valuable tool for various biotechnological applications.
Byeong Jun Jeon   +5 more
doaj   +1 more source

Aptamer-based cocaine assay using a nanohybrid composed of ZnS/Ag2Se quantum dots, graphene oxide and gold nanoparticles as a fluorescent probe [PDF]

open access: yes, 2020
Authors report on a new fluoro-graphene-plasmonic nanohybrid aptamer-based fluorescent nanoprobe for cocaine. To construct the nanoprobe, newly synthesized glutathione-capped ZnS/Ag 2Se quantum dots (QDs) were first conjugated to graphene oxide (GO) to ...
Abdolvand, Amin   +4 more
core   +2 more sources

Flap Endonuclease Disengages Dna2 Helicase/Nuclease from Okazaki Fragment Flaps [PDF]

open access: yes, 2006
Okazaki fragments contain an initiator RNA/DNA primer that must be removed before the fragments are joined. In eukaryotes, the primer region is raised into a flap by the strand displacement activity of DNA polymerase {delta}.
Bambara, Robert A.   +2 more
core   +1 more source

An electrochemical aptasensor for detection of Helicobacter pylori based on AuNPs and AgNPs-GO nanoparticles

open access: yesFrontiers in Bioengineering and Biotechnology
Helicobacter pylori is one of the main causes of gastritis and gastric ulcer. Early detection of H. pylori is of great significance for the prevention of gastric cancer.
Xiaojuan You   +12 more
doaj   +1 more source

Streptavidin-Conjugated DNA for the Boronate Affinity-Based Detection of Poly(ADP-Ribose) Polymerase-1 with Improved Sensitivity

open access: yesBiosensors, 2023
This work reports the development of a fluorescence method for the detection of poly(ADP-ribose) polymerase-1 (PARP1), in which a phenylboronic acid-modified fluorescein isothiocyanate dye (FITC-PBA) was used to recognize the formed poly(ADP-ribose) (PAR)
Fengli Gao   +4 more
doaj   +1 more source

Characterizing anomalous diffusion in crowded polymer solutions and gels over five decades in time with variable-lengthscale fluorescence correlation spectroscopy [PDF]

open access: yes, 2016
The diffusion of macromolecules in cells and in complex fluids is often found to deviate from simple Fickian diffusion. One explanation offered for this behavior is that molecular crowding renders diffusion anomalous, where the mean-squared displacement ...
Banks, Daniel S.   +4 more
core   +2 more sources

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