Results 61 to 70 of about 439,964 (240)

Multiplexed Bio‐detection on an Interferometric Optical Waveguide Assembly

open access: yesAdvanced Materials Interfaces, EarlyView.
Multiplexed remote bio‐detection is demonstrated through an image conduit composed of 3012 individual cores and coated with interferometric layers. The proof of concept of biodetection is performed through the kinetic monitoring of two complementary DNA strands hybridization paving the way for applications in multiplex in situ biosensing, and ...
Oleksii Bratash   +6 more
wiley   +1 more source

A noninvasive method for in situ determination of mating success in female American lobsters (Homarus americanus) [PDF]

open access: yes, 2014
Despite being one of the most productive fisheries in the Northwest Atlantic, much remains unknown about the natural reproductive dynamics of American lobsters.
Clancy, Michael   +5 more
core   +4 more sources

Leveraging Design of Experiments to Unravel the Amplification Mechanism of Single‐Molecule Wide‐Field Biosensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Detecting single molecules on large interfaces is challenging due to minimal perturbations on the sensing surface. Some biological systems achieve this feat using amplification mechanisms, but their molecular foundations remain unclear. To investigate, a Design of Experiments (DoE) approach examines how pH and ionic strength in conditioning solutions ...
Michele Catacchio   +9 more
wiley   +1 more source

Cryopreservation of common carp sperm [PDF]

open access: yes, 2003
Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Horváth, Ákos   +2 more
core   +1 more source

The Impact of DNA as a Chemical Admixture for Cementitious Materials

open access: yesAdvanced Materials Technologies, EarlyView.
DNA molecules are added to cement pastes and their effects on rheology and hydration time are studied. DNA's chemical structure is composed of polysaccharide and phosphate groups, which are active functional groups in different commercial chemical admixtures: Viscosity modifiers and superplasticizers.
Alexander Mezhov   +4 more
wiley   +1 more source

Sperm Depletion and Mating Behavior in the Parasitoid Wasp \u3ci\u3eSpalangia Cameroni\u3c/i\u3e (Hymenoptera: Pteromalidae) [PDF]

open access: yes, 2018
Mating behavior was examined in the parasitoid wasp Spalangia cameroni. Males attempted copulation with both virgins and already mated females. Males attempted copulation regardless of whether they still had sperm. Already mated females rejected attempts
King, Bethia H
core   +2 more sources

Sperm Motility Should be Assessed in Fresh Sperm and After a Sperm Washing Procedure [PDF]

open access: yesArchives of Andrology, 1992
A prospective study was carried out on semen samples from 118 consecutive unselected men attending our infertility clinic to determine whether sperm motility may be affected by seminal plasma. The incidence of asthenozoospermia as defined by fewer than 50% of spermatozoa with forward progressive motility in the untreated semen was 37.4%. This value was
Gonzales Rengifo, Gustavo Francisco   +1 more
openaire   +3 more sources

Constant Enzymatic in situ Production of H2O2 for an Unspecific Peroxygenase by an l–Amino Acid Oxidase

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Abstract Unspecific Peroxygenases have been the subject of a lot of research in the recent past as they offer opportunities for green hydroxylation reactions using hydrogen peroxide (H2O2) as donor. A striking problem of UPOs is their low stability against their own co‐substrate H2O2. In order to prevent the deactivation, we developed an enzyme cascade
Simon Last   +6 more
wiley   +1 more source

A companion to the preclinical common data elements for rodent genetic epilepsy models. A report of the TASK3‐WG1B: Paediatric and genetic models working group of the ILAE/AES joint translational TASK force

open access: yesEpilepsia Open, EarlyView., 2022
Abstract Rodent models of epilepsy remain the cornerstone of research into the mechanisms underlying genetic epilepsy. Reproducibility of experiments using these rodent models, occurring across a diversity of laboratories and commercial vendors, remains an issue impacting the cost‐effectiveness and scientific rigor of the studies performed.
Massimo Mantegazza   +7 more
wiley   +1 more source

Sperm Activation: Time and Tide Wait for No Sperm [PDF]

open access: yesCurrent Biology, 2006
Proper timing of sperm activation is required for reproductive success in Caenorhabditis elegans. The swm-1 gene encodes a predicted protease inhibitor that regulates sperm activation and the acquisition of amoeboid motility.
openaire   +3 more sources

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