Results 191 to 200 of about 2,592,085 (298)

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

K-Edge imaging using a clinical dual-source photon-counting CT system. [PDF]

J Appl Clin Med Phys
Rybertt MV, Liu LP, Sahbaee P, Nowak T, Mathew M, Litt HI, Cormode DP, Dhanaliwala AH, Noël PB.   +8 more
europepmc   +1 more source

Photoluminescent Color Centers on a Mainstream Silicon Photonic Foundry Platform

Advanced Optical Materials, EarlyView.
Silicon photonic chips route and process light efficiently but are inherently inefficient at generating it. Here, bright light‐emitting defects, W‐centers, are written into the silicon layer of finished chips from a mainstream commercial foundry: high‐energy ions are implanted straight through the protective oxide and activated by a 250∘C$^\circ{\rm C}$
Prosper Dellah Allo, A. Aadhi, Amirhossein Mosaddegh Yengejeh, Hazel Bakajsza, Mirabel N. M. Mensah, Marcus Tamura, Bhavin J. Shastri, Alexander N. Tait   +7 more
wiley   +1 more source

Photon-counting detector computed tomography for temporal bone: does higher resolution matter? [PDF]

Curr Opin Otolaryngol Head Neck Surg
Epperson MV, Leng S, Lane JI, Carlson ML.   +3 more
europepmc   +1 more source

Commentary: new developments in single photon detection in the short wavelength infrared regime [PDF]

, 2010
Collins, R.J., Buller, G.S., Collins, Robert J., Hadfield, Robert H., Hadfield, R., Buller, Gerald S., Robert J. Collins   +6 more
core   +1 more source

Wireless Precise Manipulation of Tumor Spheroids Using a Millirobot Controlled by Permanent Magnetic Traps

Advanced Robotics Research, EarlyView.
A magnetic donut‐like millirobot is developed for label‐free pick‐and‐place of a tumor spheroid wirelessly controlled by a magnetic trap. Spheroids are important 3D multicellular culture systems that recapitulate key structural and functional features of native tissues.
Yue Gao, Moonkwang Jeong, Anni G. Muñoz, Ann‐Sophia Müller, Fangchao Long, Shengqiang Zhou, Juntian Qu, Leoni A. Kunz‐Schughart, Tian Qiu   +8 more
wiley   +1 more source

Nuclear Instrumentation in Photon Counting

Measurement + Control, 1977
doaj   +1 more source

Photon-Counting CT for Evaluation of Coiled Intracranial Aneurysms. [PDF]

AJNR Am J Neuroradiol
Mac Grory B, Randles A, Urick DM, Schwartz FR, Hasan D, Calabrese ED.   +5 more
europepmc   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

Photon-Counting Computed Tomography for In-Stent Occlusion: Lumen Visualization and Myocardial Viability. [PDF]

JACC Case Rep
Nguyen KV, Nguyen VT, Nguyen NT, Hoang Thi VH, Phung BN, Le Thi TL, Tran TQ, Tran TL, Nguyen TH, Vu DL.   +9 more
europepmc   +1 more source