Results 41 to 50 of about 116,243 (264)

Bio‐Inspired Biopolymeric Implantable Platform for Localized and Sustained Drug Delivery in Solid Tumor Treatment

open access: yesAdvanced Functional Materials, EarlyView.
A bio‐inspired biopolymeric implantable drug delivery platform enables localized and sustained release of 7‐ethyl‐10‐hydroxycamptothecin (SN‐38) in solid tumor treatment. The three‐dimensional (3D) structured crosslinked‐chitosan implants are fabricated via 3D‐printed molds and provide drug release over 3 months, significantly inhibiting tumor growth ...
Mercedes Lozano‐Garcia   +12 more
wiley   +1 more source

Frequency-output pressure transducer based on single-junction strain transistors

open access: yesТехнологія та конструювання в електронній апаратурі, 2004
The operating principle of single-junction strain transistors is discussed. It is shown that the strain sensitivity of a single-junction transistor with a controlled p-n junction is an order of magnitude higher than that of a simple single-junction ...
G. G. Babichev   +5 more
doaj  

Feasibility and key technologies for the construction of salt cavern helium storage in China

open access: yesYou-qi chuyun
[Objective] Due to the scarcity of helium resources, insufficient production, high external dependence and single source, the security situation of helium resources in China is very severe.
ZHOU Zhaoheng   +3 more
doaj   +1 more source

Electric-field-induced helium-helium resonances

open access: yesPhysical Review A, 2019
The tunability of the helium-helium interaction through an external electric field is investigated. For a static external field, electric-field induced resonances and associated electric-field induced bound states are calculated for the $^4$He-$^4$He, $^3$He-$^4$He, and $^3$He-$^3$He systems. Qualitative agreement is found with the literature for the $^
Guan, Qingze, Blume, Doerte
openaire   +3 more sources

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam   +17 more
wiley   +1 more source

Microfluidic Nano‐Assembly of Red‐Blood‐Cell (RBC) Lipids and Components for Engineering Extracellular Vesicles

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj   +23 more
wiley   +1 more source

Universal control scheme for powerful high-voltage MOS inverters eliminating the thyristor effect

open access: yesТехнологія та конструювання в електронній апаратурі, 2005
The proposed approach to designing powerful high-frequency voltage inverters makes it possible to improve their operational reliability while expanding the limits of supply voltages and conversion frequencies.
G. I. Gavrilyuk   +3 more
doaj  

Equivalence Ratio Effect on Helium Diluted Methane Jet Flame Temperature and Pollutant Emission for a Swirl Assisted Gas Turbine Burner

open access: yesHavacılık ve Uzay Teknolojileri Dergisi, 2023
Temperature distribution and flue gas emissions in gas turbine combustion chambers have attracted the attention of researchers in recent years.
Buğrahan Alabaş, Adem Altınay
doaj  

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

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