Results 71 to 80 of about 71,926 (343)

Transferrin-polycation conjugates as carriers for DNA uptake into cells. [PDF]

open access: yes, 1990
We have developed a high-efficiency nucleic acid delivery system that uses receptor-mediated endocytosis to carry DNA macromolecules into cells. We accomplished this by conjugating the iron-transport protein transferrin to polycations that bind nucleic ...
Beug, Hartmut   +4 more
core   +1 more source

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao   +6 more
wiley   +1 more source

Ring-opening copolymerization of (R,S)-β-butyrolactone and ε-caprolactone using sodium hydride as initiator

open access: yeseXPRESS Polymer Letters, 2010
Copolymers of racemic β-butyrolactone ((R,S)-BL) and ε-caprolactone (CL), were synthesized by ring-opening polymerization initiated by sodium hydride (NaH).
doaj   +1 more source

Synergistic All‐in‐One Electroceutical Platform Utilizing a Plasma–Photodynamic Hybrid Approach for Enhanced Wound Healing

open access: yesAdvanced Functional Materials, EarlyView.
A flexible hybrid patch integrating a robust cold atmospheric plasma (CAP) system with a high‐power, ultrathin bio‐OLED was developed to enable synergistic wound healing. This multimodal therapy, combining plasma and photodynamic treatment, enhanced angiogenesis, cell proliferation, and collagen deposition, demonstrating superior in vivo efficacy and ...
Jun‐Yeop Song   +11 more
wiley   +1 more source

Molecular Weight and Monosaccharide Composition of Astragalus Polysaccharides

open access: yesMolecules, 2008
Two polysaccharides (APS-I and APS-II) were isolated from the water extract of Radix Astragali and purified through ethanol precipitation, deproteination and by ion-exchange and gel-filtration chromatography.
Pei-Pei Wang   +3 more
doaj  

Thermal and oxidative degradation studies of formulated C-ethers by gel-permeation chromatography [PDF]

open access: yes
Gel-permeation chromatography was used to analyze C-ether lubricant formulations from high-temperature bearing tests and from micro-oxidation tests.
Jones, W. R., Jr., Morales, W.
core   +1 more source

Determination of steroid estrogens in wastewater by high performance liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2007
This paper discusses the requirement for, and presents an analytical procedure for, the determination of four unconjugated steroid hormones and a conjugated steroid (estrone-3-sulfate) in wastewaters.
A. Boobis   +53 more
core   +1 more source

Ultrasound‐Triggered Gelation for Restoring Biomechanical Properties of Degenerated Functional Spinal Units

open access: yesAdvanced Healthcare Materials, EarlyView.
This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans   +11 more
wiley   +1 more source

Polyaniline membranes for use in organic solvent nanofiltration [PDF]

open access: yes, 2009
Imperial Users ...
Loh, Xun Xing, Loh, Xun Xing
core  

Folding of a donor–acceptor polyrotaxane by using noncovalent bonding interactions [PDF]

open access: yes, 2008
Mechanically interlocked compounds, such as bistable catenanes and bistable rotaxanes, have been used to bring about actuation in nanoelectromechanical systems (NEMS) and molecular electronic devices (MEDs).
A. Z. Stieg   +26 more
core   +3 more sources

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