Results 81 to 90 of about 3,807 (195)

Heteroatom location‐ and orientation mode‐dependent reverse intersystem crossing rate in multiple resonance emitters

FlexMat, EarlyView.
By constructing two pairs of isomers with different heteroatom anchoring positions, the relationship between heteroatom location and orientation mode and reverse intersystem crossing rate constant (kRISC) in multiple resonance (MR) emitters is systematically investigated.
Tingting Huang, Yincai Xu, Yupei Qu, Xinliang Cai, Jinbei Wei, Yue Wang   +5 more
wiley   +1 more source

Advancing super‐resolution stimulated emission depletion microscopy with luminescent lanthanide nanocrystals

FlexMat, EarlyView.
The state‐of‐the‐art research advances and its cutting‐edge application in super resolution stimulated emission depletion technology based on luminescent lanthanide nanocrystals. Abstract Stimulated emission depletion (STED) microscopy overcomes the diffraction limit to reveal subcellular structures beyond the reach of conventional optical methods ...
Yaqi Chen, Tengfei Ma, Shuping Huang, Wei Guo, Yiming Wu   +4 more
wiley   +1 more source

Characterisation of Photo-Physical Properties of Upconversion Nanocrystals at Ensemble and Single Particle Level

, 2022
Upconversion nanoparticles (UCNPs), such as, NaYF4 crystals co-doped with Yb3+ and Er3+ ions, emit higher energetic light in the UV/vis and NIR range under lower energetic NIR excitation. This generates unique optical properties, for example, multi-colour band emissions, reduced background fluorescence, deeper tissue penetration depths and high ...
openaire   +1 more source

The regulation of stem cell fate and its application in neural regeneration

Interdisciplinary Medicine, EarlyView.
Regulating stem cell fate is crucial for neural regeneration. This review summarizes key physical, biological, and chemical strategies and their applications in repairing nerve injuries, providing new insights for regenerative medicine. Abstract Regulating the fate of stem cells (SCs) is a key technical problem in the field of regenerative medicine and
Yuexin He, Xingyu Chen, Minghong He, Zhe Li   +3 more
wiley   +1 more source

Estimation of the proximal temperature rise of an excited upconversion particle by detecting the wavefront of emission

Optics Express
Monitoring the temperature distribution within a local environment at the micro and nanoscale is vital as many processes are solely thermal. Various thermometric techniques have been explored in the community, and out of these, fluorescent nano/micro particle-based mechanisms are accepted widely (fluorescence intensity ratio (FIR) techniques, where the
Gokul Nalupurackal, Jaspal Singh, Srestha Roy, Muruga Lokesh, Snigdhadev Chakraborty, Jayesh Goswami, Arijit Bhattacharya, Pallab Sinha Mahapatra, A. R. Ganesan, Basudev Roy   +9 more
openaire   +2 more sources

Intelligent design of artificial biocatalyst for biomedical diseases

Journal of Intelligent Medicine, EarlyView.
This review summarizes recent advances in the intelligent design of artificial biocatalysts for biomedical diseases. By leveraging tailored design strategies, including environment‐responsive engineering and rational/artificial intelligence‐aided optimization, these biocatalysts enable precise modulation of pathological microenvironments and targeted ...
Lijie Zhang, Nan Song, Huanhuan Qiao, Si Sun   +3 more
wiley   +1 more source

Magnetic-luminescent YbPO4:Er,Dy microspheres designed for tumor theranostics with synergistic effect of photodynamic therapy and chemotherapy

International Journal of Nanomedicine, 2014
Wei Wang, Dong Xu, Xiaojun Wei, Kezheng Chen Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, People’s Republic of China Abstract: In this paper ...
Wang W, Xu D, Wei XJ, Chen KZ
doaj  

Luminescence intensity ratio by three thermalized levels in YAG:Er3+/Yb3+ nanoparticles [PDF]

Hemijska Industrija
Luminescence thermometry is a remote temperature sensing method by observing temperature dependent spectral changes for temperature readout. Chase for increasing temperature readout sensitivity motivated research of employing 3rd thermalized level of Er3+
Ćirić Aleksandar, Medić Mina, Periša Jovana, Antić Željka, Dramićanin Miroslav D.   +4 more
doaj   +1 more source

Mycotoxin management in the cereal supply chain: Advanced detection, detoxification, and smart packaging strategies

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Mycotoxins remain a persistent threat to the safety and quality of cereal grains and other agricultural products, and their impact on human health continues to raise global concerns. In many situations, the practices traditionally used to control these toxins are no longer sufficiently effective. They can be costly, difficult to implement on a
Abolfazl Asqardokht‐Aliabadi, Dipendra Kumar Mahato, Jafar Mohammadzadeh Milani   +2 more
wiley   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source