Results 61 to 70 of about 166,185,938 (258)

Upconverting nanophosphors for various sensing applications

open access: yesTalanta Open
Background: Upconverting nanophosphors (UCNPs) are composed of certain nanosized inorganic host materials doped with specific rare earth ions. They exhibit the phenomenon of photon upconversion, whereby the sequential absorption of two or more low energy
Jitender Kumar, Indrajit Roy
doaj   +1 more source

Complementary DNA Significantly Enhancing Signal Response and Sensitivity of a Molecular Beacon Probe to Aflatoxin B1

open access: yesBiosensors, 2023
This paper reported an improved molecular beacon method for the rapid detection of aflatoxin B1 (AFB1), a natural mycotoxin with severe carcinogenicity. With the assistance of a complementary DNA (cDNA) chain, the molecular beacon which consists of a DNA
Chao Wang   +3 more
doaj   +1 more source

Sustainable Poly(Lactic Acid)/Graphene Oxide Bioelectronic Platform for Neurotransmitters Sensing and Tunable Stimulation of Astrocytes

open access: yesAdvanced Materials, EarlyView.
This work introduces sustainable PLA/graphene oxide bioelectronic interfaces featuring electrodes with tunable conductivity and strong electrocatalytic performance. These platforms were used to implement a new method for tuning astrocyte Ca2+ signaling and for the efficient detection of key biomarkers.
Alessandra Scidà   +15 more
wiley   +1 more source

Electropolymerized Aptasensor for Femtogram‐Level Cytokine Detection

open access: yesAdvanced Materials, EarlyView.
Electropolymerization of 3‐amino‐ʟ‐tyrosine creates ultrathin, smooth, and chemically robust pALT nanofilms with accessible carboxyl functionalities for direct aptamer immobilization. Integrated with fiber‐optic SPR and OECT platforms, these interfaces enable IL‐6 detection down to 100 fg mL−1 and provide a versatile route to bioelectronic sensing ...
Jiyao Yu   +7 more
wiley   +1 more source

Limit of detection (LOD) for each respiratory virus in all platforms.

open access: yes, 2019
Limit of detection (LOD) for each respiratory virus in all platforms.
Hadar Assraf-Zarfati (6377147)   +8 more
core   +1 more source

Sustainable Laser‐Induced Graphene Electrochemical Sensors from Natural Cork for Sensitive Tyrosine Detection

open access: yesAdvanced Sensor Research, 2023
Cork laser induced graphene (cork‐LIG) electrochemical sensors are fabricated by direct laser writing of natural cork sheets. Laser writing is performed with a hobbyist visible laser.
Eoghan Vaughan   +7 more
doaj   +1 more source

Lab‐in‐a‐Tube System Integrating Hierarchically Wrinkled Electrodes and DNAzyme‐Functionalized Beads for Diagnosis of Clostridioides difficile Infection

open access: yesAdvanced Materials, EarlyView.
The point‐of‐care diagnosis of Clostridioides difficile infection remains challenging due to reliance on slow culture and amplification‐based methods. A lab‐in‐a‐tube electrochemical biosensor integrating DNAzymes, antifouling magnetic beads, and a hierarchically structured flow cell enables amplification‐ and culture‐free detection directly in stool ...
Survanshu Saxena   +10 more
wiley   +1 more source

Verification of The Method for Determining Calcium Content in Animal Feed

open access: yesChempublish Journal
Calcium is one of the essential macromineral elements in animal feed. To ensure that animal feed meets nutritional and safety standards, accurate and validated analytical methods are needed to determine calcium levels, specifically using the ICP-OES ...
Syafrinal Syafrinal   +5 more
doaj   +1 more source

Selective Laser Sintering and Graphitization for Mono‐Matrix Unibody Fabrication of Integrated Stereo‐Circuit and Stereo‐Fluidic Wearable Electronics

open access: yesAdvanced Materials, EarlyView.
A novel selective laser sintering and graphitization (SLSG) 3D printing technology enables unibody fabrication of compacted insulating structures and conductive circuits in fluidic‐integrated wearable electronics through adaptive photonic modulation.
Li Zhang, Wing Cheung Mak
wiley   +1 more source

Analytical sensitivity (ASe) (estimated limit of detection (LOD)) based on 8 titrated RVF strains.

open access: yes, 2019
Analytical sensitivity (ASe) (estimated limit of detection (LOD)) based on 8 titrated RVF strains.
Hassan Chaabihi (7372577)   +13 more
core   +1 more source

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