Results 171 to 180 of about 140,939 (365)

A Study of Multi-channel Wavelength Division Multiplexing Using Photonic Crystals [PDF]

open access: gold, 2006
Chih-Fu Chang   +3 more
openalex   +1 more source

Nucleic Acid‐Based Molecular Machines for Biological Applications

open access: yesAdvanced NanoBiomed Research, EarlyView.
Molecular machines are devices assembled from molecules with specific functions. In this review, the development of DNA nanostructures, which are then assembled into molecular machines, is summarized. Their classification and biological applications, such as biosensing, targeted therapy, and molecular circuits are introduced.
Yirong Guo, Xiaolei Zuo, Fangfei Yin
wiley   +1 more source

Steerable High‐Resolution Ultrasound Focusing via Phase‐Array‐Activated Acoustic Meta‐Lenses

open access: yesAdvanced Physics Research, EarlyView.
Conventional phased arrays face a trade‐off between performance and complexity. Here, a unique approach is proposed by decoupling the functions into two steps. In step 1, a sparse phased array generates a steerable plane wave with little distortion. In step 2, the steerable plane wave is reshaped into high‐resolution acoustic focusing or holographic ...
Xin‐Yu Cui   +7 more
wiley   +1 more source

Multi-wavelength fiber laser with erbium doped zirconia fiber and semiconductor optical amplifier

open access: yes, 2010
Multi-wavelength hybrid fiber lasers are demonstrated in both ring and linear cavities using a fabricated Erbium-doped Zirconia fiber (EDZF) and semiconductor optical amplifier (SOA) as gain media.
Ahmad, H.   +13 more
core  

Gold Nanoparticles Coated With Hydrophobin‐ProteinA Fusion Protein: Development of a Versatile Immunosensing Platform

open access: yesBiotechnology and Bioengineering, EarlyView.
The biosensor uses a two‐step method involving Ab‐Vmh2/SpA‐AuNPs. Gold nanoparticles are functionalized with Vmh2/SpA, antibodies and then mixed with analytes. HCl induces aggregation in unbound particles enabling detection through spectral analysis based on analyte interaction and nanoparticle aggregation behavior.
Paola Cicatiello   +5 more
wiley   +1 more source

Fast Switching Tunable Laser Sources for Wavelength Division Multiplexing in Passive Optical Access Networks [PDF]

open access: green, 2007
Brendan Roycroft   +10 more
openalex   +1 more source

Recent advances on MOF‐based colorimetric sensors

open access: yesBulletin of the Korean Chemical Society, EarlyView.
MOF‐based colorimetric sensors are widely explored due to their operational simplicity and outstanding structural tunability. In this review, the recent progress of MOF‐based colorimetric sensors is discussed, focusing on the role of MOFs in chromogenic transduction pathways.
Solmin Lee, Hyejin Yoo, Jin Yeong Kim
wiley   +1 more source

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