Results 101 to 110 of about 92,896 (299)

Identifying the location and micellization of PEG-b-PCL multiblock copolymers in PLA/PCL blends via AFM nanoscale IR spectroscopy

Polymer Testing
The IR absorption mapping of two multiblock copolymers based on poly(ethylene glycol) and poly(ε-caprolactone) segments (PEG-b-PCL) in poly(acid lactic) and poly(ε-caprolactone) blends (PLA/PCL) was performed via AFM nanoscale IR spectroscopy.
Lucas H. Staffa, Sílvia H.P. Bettini, Marcelo A. Chinelatto   +2 more
doaj   +1 more source

Photoinduced Synthesis of Block Copolymers by Combination of Atom Transfer Radical Polymerization and Photoinduced Radical Oxidation/Addition/Deactivation

Journal of the Turkish Chemical Society, Section A: Chemistry, 2018
A new polymerization mechanistic transformation strategy, combining two different controlled polymerization techniques of different modes, atom transfer radical polymerization (ATRP) and photoinduced radical oxidation/addition/deactivation (PROAD), is ...
Mustafa Çiftci
doaj   +1 more source

Tailoring Nanostructures Using Copolymer Nanoimprint Lithography

, 2012
Finding affordable ways of generating high-density ordered nanostructures that can be transferred to a substrate is a major challenge for industrial applications like memories or optical devices with high resolution features. In this work, we report on a
Andelman, David, Chaix, Nicolas, Daillant, Jean, Guenoun, Patrick, Landis, Stefan, Man, Xingkun, Niedermayer, Stefan, Orland, Henri, Thebault, Pascal   +8 more
core   +1 more source

Piezoelectric Surface Charge and Dynamic Stimulation Synergize to Promote Cardiac Myoblast Alignment and Maturation

Advanced Healthcare Materials, EarlyView.
Surface polarization of PVDF films combined with mechanical stimulation generates piezoelectric electrical cues that modulate cardiomyoblast behaviour. Non‐poled and poled PVDF substrates provide distinct electroactive microenvironments influencing cell adhesion, proliferation, and differentiation.
Rafaela M Meira, Sylvie Ribeiro, Senentxu Lanceros‐Mendez, Clarisse Ribeiro   +3 more
wiley   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

Degradation versus self-assembly of block copolymer micelles

, 2012
The stability of micelles self-assembled from block copolymers can be altered by the degradation of the blocks. Slow degradation shifts the equilibrium size distribution of block copolymer micelles and change their properties.
Adams M. L., Agrawal S. K., Alexander Muratov, Alexandridis P., Bastioli C., Baulin V. A., Baulin V. A., Baulin V. A., Ben-Naim E., Brown D. W., Dubbeldam J. L. A., Duplantier B., Frazza E. J., Garcia-Martin M. G., Geng Y., Hamley I., Hsu H.-P., Hu Y., Husseini G. A., Johner A., Kaatze U., Lee J., Li S., Li S., Lund R., Lund R., Lynch A. L., Mahmud A., Marques C. M., Matsumura Y., Moghimi S. M., Pack D. W., Pierri E., Pogodin S., Riess G., Ruiz-Donaire P., Savic R., Scott G., Sens P., Sun H., Torchilin V., Torchilin V. P., Vladimir A. Baulin, Wang Y.-C., Zhulina E. B., Zinn T.   +45 more
core   +1 more source

Shellac‐Mediated Assembly of Nanoparticles for mRNA Delivery

Advanced Healthcare Materials, EarlyView.
A shellac‐mediated nanoparticle assembly strategy is presented, involving the complexation of mRNA and low‐molecular‐weight cationic molecules (e.g., polyethyleneimine, chitosan, lipids, and poly‐l‐lysine), followed by capping with shellac. This nanoparticle platform enables mRNA transfection following intravenous injection and facilitates gene editing
Meizhang Lu, Jingqu Chen, Zhixing Lin, Wanjun Xu, Tianzheng Wang, Shiyao Li, Die Yang, Frank Caruso   +7 more
wiley   +1 more source

Oxygen Supply of Islets of Langerhans by Photosynthetically Active Microalgae in Bioprinted Co‐Cultures Maintains Their Function in a Hypoxic Environment

Advanced Healthcare Materials, EarlyView.
This study developed a bioprinted co‐culture system embedding rat pancreatic islets and Scenedesmus sp. microalgae spatially defined in close vicinity. Red light was found optimal to ensure microalgal photosynthesis while maintaining islet viability and functionality. A tailored co‐culture medium supported both cell types.
Finn Dani, Sarah Duin, Ashwini Rahul Akkineni, Susann Lehmann, Barbara Ludwig, Michael Kühl, Michael Gelinsky, Anja Lode   +7 more
wiley   +1 more source

Controllable Dynamic Mechanical Cell Stimulation using Magnetically Actuated Artificial Cilia

Advanced Healthcare Materials, EarlyView.
This paper introduces a platform based on magnetic artificial cilia for providing controllable dynamic mechanical stimulation to single cells, suitable for investigating large cell populations and enabling live cell imaging. Proof‐of‐principle experiments show that cell morphology is strongly influenced by the artificial cilia, that cellular forces can
Roel Kooi, Tanveer Ul Islam, Oscar M.J.A. Stassen, Naomie Amsing, Jan de Boer, Jaap M.J. den Toonder   +5 more
wiley   +1 more source

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

eXPRESS 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