Results 161 to 170 of about 815,097 (318)
Carbon quantum dots (CQDs) play a significant role in supporting the UN SDGs by promoting the sustainable management of energy, healthcare, remediation, and agriculture in a multidisciplinary manner. It focuses on reducing waste, toxicity, and energy use while utilizing renewable resources.
Manish Kumar Sah +6 more
wiley +1 more source
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian +7 more
wiley +1 more source
Seamlessly merging radar ranging and imaging, wireless communications, and spectrum sensing for 6G empowered by microwave photonics. [PDF]
Shi T, Chen Y, Yao J.
europepmc +1 more source
Terahertz Metasurface for Spatial Detection of Full Stokes Parameters and Polarization Imaging
This work presents a THz polarization analyzer with significantly improved robustness against nonuniformity. By integrating four polarization‐sensitive meta‐atoms into a meta‐cell, the metalens splits incident light into six polarization components and generates off‐axis focal spots.
Shengnan Guan +5 more
wiley +1 more source
Application of dynamic acylhydrazones to achieve CANs with shape‐memory properties. ABSTRACT Covalent adaptable networks (CANs) are based on reversible crosslinks, which are present within the polymer network structure. Due to these reversible moieties, CANs feature interesting properties/abilities such as self‐healing after damage, shape‐memory ...
Farhad Shohraty +6 more
wiley +1 more source
Microwave photonics doppler speed measurement based on sagnac loops and four-wave mixing effect in a highly nonlinear fiber. [PDF]
Emami H, Hashemi R.
europepmc +1 more source
The incubation of primary astrocytes with fAuNCs‐BSA induces: (A) long‐term effects including fAuNCs‐BSA internalization, red cell fluorescence, differentiation, upregulation of Ca2+ signaling, Cl‐current, and cell volume regulation. B) Short‐term (200 ms) stimulation with UV LED light increases in Ca2+ signaling and inhibition of K+ current. Astrocyte
Roberta Fabbri +21 more
wiley +1 more source
Nanomaterial‐Mediated Near‐Infrared Photothermal Neuromodulation for Neurologic Disorders
This review summarizes how near‐infrared light activates photothermal nanomaterials to enable noninvasive neuromodulation with high spatiotemporal precision. It elucidates the underlying mechanisms, explores targeted therapeutic applications for neurological disorders, discusses integration with optogenetics and biosensors, and addresses future ...
Ting‐Ting Zeng +9 more
wiley +1 more source
Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa +4 more
wiley +1 more source
This review highlights how nanomaterials with high adsorption capacities including carbon‐based structures, transition metal oxides, 2D layers, and zeolites enable sensitive and selective detection of toxic gases and VOCs. Their tailored properties and sensing mechanisms drive the development of next‐generation gas sensors for environmental and ...
Hamdy A. Ismail +9 more
wiley +1 more source

