Results 101 to 110 of about 59,410 (270)

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

open access: yesAdvanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin   +5 more
wiley   +1 more source

Current Advancements in Transdermal Biosensing and Targeted Drug Delivery

open access: yesSensors, 2019
In this manuscript, recent advancements in the area of minimally-invasive transdermal biosensing and drug delivery are reviewed. The administration of therapeutic entities through the skin is complicated by the stratum corneum layer, which serves as a ...
Prem C. Pandey   +4 more
doaj   +1 more source

Liquid and back gate coupling effect: towards biosensing with lowest detection limit

open access: yes, 2013
We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors.
Kovalenko, Valery   +6 more
core   +1 more source

Current developments of SELEX technologies and prospects in the aptamer selection with clinical applications

open access: yesJournal of Genetic Engineering and Biotechnology
Aptamers are single-stranded oligonucleotide sequences capable of binding to specific ligands with high affinity. In this manner, they are like antibodies but have advantages such as lower manufacturing costs, lower immunogenicity, fewer batch-to-batch ...
Danny Jair Chinchilla-Cárdenas   +6 more
doaj   +1 more source

Arresting Microphase Separation Encodes Material Mechanics by Sculpting Microarchitectures and Local Polymer Enrichment

open access: yesAdvanced Materials, EarlyView.
Microarchitecture sculpting via phase separation programs hydrogel mechanics by creating globular, inverse globular, and spinodal structures. Spinodal architectures deliver superior toughness and energy dissipation, while ionic modulation through single polymer phase separation offers a simple, scalable route to tune mechanical properties ...
Castro Johnbosco   +9 more
wiley   +1 more source

Biosensing Technologies for Detecting Legionella in Environmental Samples: A Systematic Review

open access: yesMicroorganisms
The detection of Legionella in environmental samples, such as water, is crucial for public health monitoring and outbreak prevention. Although effective, traditional detection methods, including culture-based techniques and polymerase chain reaction ...
Giuseppe Andrea Screpis   +7 more
doaj   +1 more source

From Sensors to Systems: CMOS-Integrated Electrochemical Biosensors

open access: yesIEEE Access, 2015
Novel electronic detection techniques are being increasingly sought as components of highly scalable technologies for high-throughput biosensing applications.
Pradyumna S. Singh
doaj   +1 more source

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

open access: yesAdvanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo   +4 more
wiley   +1 more source

Advances in Biosensor Applications of Metal/Metal-Oxide Nanoscale Materials

open access: yesChemosensors
Biosensing shows promise in detecting cancer, renal disease, and other illnesses. Depending on their transducing processes, varieties of biosensors can be divided into electrochemical, optical, piezoelectric, and thermal biosensors.
Md Abdus Subhan   +3 more
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

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