Results 131 to 140 of about 35,820 (275)

Mussel-inspired polydopamine-polyethylenimine conjugated nanoparticles as efficient gene delivery vectors for mammalian cells

open access: yes, 2018
Mussel-inspired polydopamine-polyethylenimine conjugated nanoparticles as efficient gene delivery vectors for mammalian ...
AK Sharma (14530208)   +3 more
core  

PTQ10‐based organic photodetectors for visible light detection and their tolerance to impurities

open access: yesPolymer International, EarlyView.
PTQ10‐based organic photodetectors were found to be very sensitive to the presence of Pd(PPh3)4 catalyst traces, impacting the transport properties and light detection capacities. Abstract PTQ10 donor polymer has attracted a lot of interest in organic optoelectronics, particularly in the field of organic photovoltaics, owing to its ease of synthesis ...
Chloé Dindault   +9 more
wiley   +1 more source

Investigation of the adsorption of dioleoyl-L-alpha-phosphatidic acid mono- and bilayers from vesicle solution onto polyethylenimine-covered substrates

open access: yes, 1996
The formation of monolayers and bilayers of dioleoyl-L-alpha-phosphatidic acid from solutions of small unilamellar vesicles onto polyethylenimine-treated substrates was investigated by means of small angle X-ray scattering and X-ray photoelectron ...
Schouten, AJ, Sohling, U
core  

Super‐capacitive carbon materials with large micropores and rich mesopores synthesized using N, S co‐doped carbon dots as self‐templates

open access: yesResponsive Materials, EarlyView.
Nitrogen‐sulfur co‐doped carbon dots are employed as self‐templates to fabricate hierarchical porous carbon material with a concentrated micropore size distribution of 1.1–1.6 nm and a high mesopore volume ratio up to 47.2%, which shows good capacity and excellent responsive ability as electrodes in electrochemical supercapacitors.
Xi‐Rong Zhang   +4 more
wiley   +1 more source

Hydrogen Bonding Denticity Governs Surface Modulation in Inorganic Perovskite Nanocrystals

open access: yesSmall, EarlyView.
Organic cations with distinct hydrogen‐bonding denticities enable systematic modulation of perovskite nanocrystal surfaces. Increasing denticity from mono‐dentate MA+ to bi‐dentate FA+ and multi‐dentate GA+ strengthens interactions with surface iodides, effectively suppressing surface defects.
Jiaxin Song   +14 more
wiley   +1 more source

A Luminescent PEI/Cy5‐Citrate‐Functionalized Carbonated Apatite Nanoplatform for In Vitro Gene Delivery and In Vivo Traceability

open access: yesSmall, EarlyView.
A luminescent PEI/Cy5‐citrate‐functionalized carbonated apatite nanoplatform combines biocompatibility, plasmid delivery, and Cy5‐based traceability. The system enables effective in vitro gene delivery while preserving cell viability and allows real‐time in vivo fluorescence tracking of the nanocarrier.
Laura Garrido Martín   +5 more
wiley   +1 more source

POLYETHYLENEIMINE (PEI) ON SILICA AS CATALYST IN KNOEVENAGEL AND MICHAEL REACTIONS

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2017
After the synthesis of polyethylenimine supported on silica, it has been used as a new and efficient catalyst in Knoevenagel and Michael condensations.
FATIHA ZAOUI   +3 more
doaj  

Rapid and Efficient Affinity Isolation of Engineered Extracellular Vesicles Encapsulating Functional Proteins via Internal Twin‐Strep Tetraspanin Tagging

open access: yesSmall, EarlyView.
Structure‐guided internal twin‐Strep tagging of the tetraspanins CD63 or CD9 enables rapid and efficient antibody‐free affinity isolation of engineered extracellular vesicles (EVs) using Strep technology while allowing luminal protein loading. The approach removes over 96% of contaminants, separates tagged EVs from coexisting viral particles, and ...
Minh‐Tu Pham   +14 more
wiley   +1 more source

Induced Core‐Shell Transformation in Agarose‐Chitosan Nanoreactor Beads Enable Single Channel Coding for dPCR Multiplexing

open access: yesSmall, EarlyView.
Hybrid agarose–chitosan beads undergo a pH‐dependent reorganization into stable core–shell structures upon heating. The resulting tunable optical shell/core contrasts enable bead‐based coding for multiplex PCR. This approach allows sample multiplexing with simple detection systems and functionally exploits a previously unrecognized structure‐forming ...
Katharina Heise   +12 more
wiley   +1 more source

Biomaterial Platforms for Spatiotemporal Control of mRNA Delivery in Tissue Engineering and Regenerative Medicine: Design Rules, Therapeutic Applications, and Translational Roadmap

open access: yesSmall, EarlyView.
Biomaterial platforms can control where and when mRNA‐encoded proteins are expressed to support tissue repair. This Review proposes a cargo–target–timing framework linking therapeutic function, target tissues and cells, and expression profiles with carrier and scaffold design.
Huachun Pan   +14 more
wiley   +1 more source

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