Results 101 to 110 of about 50,761 (253)

Integrated optical directional coupler biosensor

open access: yes, 1996
We present measurements on biomolecular binding reactions, using a new type of integrated optical biosensor based on a planar directional coupler structure. The device is fabricated by Ag+-Na+ ion-exchange in glass and definition of the sensing region is
B. J. Luff   +12 more
core   +2 more sources

Sustainable dyeing of silk with curled dock (Rumex crispus) extract for trace element removal, ultraviolet protection, antimicrobial and anti‐oxidant activity

open access: yesColoration Technology, EarlyView.
Abstract This study investigated the dyeability and functionality of silk dyed with curled dock leaf extract. The effects of sugar content and turbidity in the extracted dye solution on dyeing were analysed, along with K/S values and colour fastness, under varying temperatures and times.
Youngmi Park
wiley   +1 more source

Modeling, Calculation and Realization of Au/Nb2O5 Substrates for Surface Plasmon Resonance Sensors

open access: yesКібернетика та комп'ютерні технології
Introduction. Sensor devices based on the surface plasmon resonance (SRP) phenomenon are widely used among the tools of information and diagnostic technologies.
Tetyana Lebyedyeva, Pavlo Shpylovyy
doaj   +1 more source

Evaluation and analytical validation of a handheld digital refractometer for urine specific gravity measurement

open access: yesPractical Laboratory Medicine, 2016
Objectives: Refractometers are commonly used to determine urine specific gravity (SG) in the assessment of hydration status and urine specimen validity testing.
Sara P. Wyness   +3 more
doaj   +1 more source

Optofluidic integrated Bragg grating chemical sensor: Utilising a sodium-elective receptor surface to enhance detection

open access: yes
Planar waveguides can be written with a UV-laser into photosensitised silica to produce a wide range of optical devices. Careful modulation of two interfering beams allows Bragg gratings to be directly written into the channel.
Gates, J.C.   +3 more
core   +1 more source

Plant Domestication Affects the Oviposition Behavior and Performance of Ganaspis kimorum, a Parasitoid of Drosophila suzukii

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
In this study, we investigated the effects of blueberry domestication on the oviposition behavior and performance of Ganaspis kimorum, a parasitoid of Drosophila suzukii. Domestication of blueberries reduced the oviposition‐searching behavior of the parasitoid but enhanced parasitoid performance, including offspring performance. Additionally, blueberry
Yahel Ben‐Zvi, Cesar Rodriguez‐Saona
wiley   +1 more source

Dimerization‐dependent NOTCH receptor transactivation unveils a class of highly selective NOTCH signalling inhibitors

open access: yesThe FEBS Journal, EarlyView.
NOTCH signalling is indispensable for tissue homeostasis and, consequently, corruption of its normal function promotes numerous diseases, including cancer. However, the development of targeted therapies has been hampered by inefficacy and overt toxicity. Here, we show that NOTCH receptor dimerization is necessary for receptor transactivation, which has
Xinxin Liu   +9 more
wiley   +1 more source

Anticipating cosmetic emulsion stability using a novel multi‐analytical approach

open access: yesInternational Journal of Cosmetic Science, EarlyView.
A novel combination of granulometry, turbidimetry and rheology enables early detection of cosmetic emulsion instability—reducing assessment time from 30 to 8 days. This rapid method distinguishes stable from unstable emulsions under identical conditions, offering a powerful tool for formulation screening and industrial quality control.
Axel Viton   +4 more
wiley   +1 more source

Airborne refractometer

open access: yesEos, Transactions American Geophysical Union, 1969
The first flight tests of an airborne refractometer to measure humidity changes were made last summer as one of the scientific projects of the Barbados Oceanographic and Meteorological Experiment. The instrument has a small barrel‐shaped device mounted atop a twin‐engine aircraft.
openaire   +1 more source

Effect of Two Therapeutic Renal Diets on Hormonal and Regulatory Pathways Affecting Calcium Homeostasis in Cats With Early‐Stage Chronic Kidney Disease

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Chronic kidney disease (CKD) is a known risk factor for hypercalcemia in cats. Phosphate‐restricted diets have also been implicated in causing hypercalcemia, in part because phosphate restriction increases the Ca:P ratio. The primary objective of this study was to evaluate the impact of two different therapeutic renal foods on ionized (iCa ...
Jean A. Hall   +4 more
wiley   +1 more source

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