Results 311 to 320 of about 1,686,692 (405)

Advancements in Clinical Evaluation and Regulatory Frameworks for AI-Driven Software as a Medical Device (SaMD). [PDF]

IEEE Open J Eng Med Biol
Yang SR, Chien JT, Lee CY.
europepmc   +1 more source

Enantio‐ and Diastereoselective Synthesis and Spiral‐Stair‐Like Single Helix Assembly of Figure‐Eight Cyclophenylenes

Angewandte Chemie, EarlyView.
We present here the enantio‐ and diastereoselective synthesis of chiral figure‐eight [10]cyclophenylenes via the rhodium‐catalyzed four consecutive intramolecular [2 + 2 + 2] cycloadditions of dodecaynes with two flexible biphenyl units, resulting in increased rotational freedom of the reaction intermediates.
Kohei Adachi, Juntaro Nogami, Daisuke Hashizume, Daiki Tauchi, Masashi Hasegawa, Ken Tanaka   +5 more
wiley   +1 more source

NIST time and frequency bulletin no. 510

, 2000
openaire   +1 more source

Imino‐Pyrrole Zn(II) Complexes for the Rapid and Selective Chemical Recycling of Commodity Polymers

Angewandte Chemie, EarlyView.
Three imino‐pyrrole zinc (II) catalysts were prepared and applied to the chemical recycling of PLA, PET, and BPA‐PC. Rapid PLA degradation was accomplished in solution and under solvent‐free conditions, the latter giving full conversion at relatively mild temperatures after 11 min.
Jack A. Stewart, Louis T. W. Powell, Matthew J. Cullen, Gabrielle Kociok‐Köhn, Matthew G. Davidson, Matthew D. Jones   +5 more
wiley   +1 more source

Effect of cinnamon oil (<i>Cinnamomum burmannii</i>) on the histological kidney of male diabetic rats (<i>Rattus norvegicus</i>). [PDF]

Open Vet J
Budiastuti B, Noviana Thesia NL, Plumeriastuti H, Effendi MH, Ugbo EN, Khairullah AR, Moses IB, Priscilia Riwu KH, Ahmad RZ, Yanestria SM, Wasito W, Pratama BP, Awwanah M, Prasetyo A.   +13 more
europepmc   +1 more source

Mn2+‐aktivierte Alkalilithooxidosilikat‐Leuchtstoffe als nachhaltige alternative Weißlichtemitter

Angewandte Chemie, EarlyView.
Eu2+‐aktivierte Alkalilithooxidosilikate sind bewährte Leuchtstoffe. Erstmals zeigen wir, dass auch das verfügbarere Übergangsmetall‐Ion Mn2+ eingebaut werden kann. Die Leuchtstoffe zeigen grüne und rote Emission und erlauben so die Konzeption von pc‐wLEDs mit nur einem Leuchtstoff.
Lukas Maximilian Träger, Judith Ifeoma Ekeya, Annika Liesenfeld, Marc Wieczorek, Hubert Huppertz, Markus Suta   +5 more
wiley   +1 more source

Prevalence of and risk factors for long COVID following infection with the COVID‑19 omicron variant. [PDF]

Med Int (Lond)
Moritani I, Yamanaka K, Nakamura T, Tanaka J, Kainuma K, Okamoto M, Ieki T, Wada H, Shiraki K.   +8 more
europepmc   +1 more source

A Hypoxia‐Triggered Bioreduction of Hydrophilic Type I Photosensitizer for Switchable In Vivo Photoacoustic Imaging and High‐Specificity Cancer Phototherapy

Angewandte Chemie, EarlyView.
A hydrophilic type I phototherapeutic agent (NanoPcN8O) was developed which selectively responded to hypoxic tumor microenvironments and switched on type I photodynamic and photothermal effects as well as a photoacoustic signal for activatable photoacoustic imaging and tumor phototherapy.
Yuan‐Yuan Zhao, Yihui Xu, Xiaojun Zhang, Zixuan Chen, Heejeong Kim, Xingshu Li, Juyoung Yoon   +6 more
wiley   +1 more source

Navigating regulatory and policy challenges for AI enabled combination devices. [PDF]

Front Med Technol
Santra S, Kukreja P, Saxena K, Gandhi S, Singh OV.   +4 more
europepmc   +1 more source

Diamond Chemistry: Advances and Perspectives

Angewandte Chemie International Edition, Accepted Article.
Diamond as a material has many unique properties. More recently, diamond has emerged as a material with a wide range of applications in chemistry and biology. The high intrinsic stability of diamond, coupled with the ability to modify diamond surfaces with a wide range of species via highly stable covalent linkages, provides a wealth of opportunity to ...
Nianjun Yang, Anke Krueger, Robert J. Hamers   +2 more
wiley   +1 more source