Results 11 to 20 of about 10,801 (230)

Optical and mechanical properties of PNIPAm‐MWCNTs and PNIPAm‐GO composites

Journal of Applied Polymer Science, 2022
AbstractThe aim of this study is to investigate drying, swelling, elastic properties, and to produce optical band gap energies on the performance of Poly (N‐Isopropyl acrylamide) ‐ Multi walled carbon nanotubes (PNIPAm – MWCNTs) and Poly (N‐Isopropyl acrylamide)‐ Graphene Oxide (PNIPAm‐GO) composites, respectively.
Unver, Batuhan, Pekcan, Onder, Evingur, Gulsen Akin, Akın Evingür, Gülşen   +3 more
openaire   +3 more sources

LCST Behavior of Symmetrical PNiPAm-b-PEtOx-b-PNiPAm Triblock Copolymers

Macromolecules, 2016
Poly(N-isopropylacrylamide) (PNiPAm) and poly(2-ethyl-2-oxazoline) (PEtOx) represent two polymer types that are well-known for their lower critical solution temperature (LCST) behavior in aqueous media. To synthesize triblock copolymers containing both polymers, a crossover of two different polymerization methods was applied using a bifunctional ...
Dirauf, Michael, Yildirim, TURGAY, Schubert, Ulrich S., Hoeppener, Stephanie, Weber, Christine, Sahn, Martin, Sungur, Pelin   +6 more
core   +4 more sources

Discrete 2D Material Programming for 3D Shaping and Morphogenesis‐Inspired 4D Bioprinting [PDF]

Advanced Science, EarlyView.
Cell‐compatible discrete 2D material programming enables 2‐to‐3D shape transformation and morphogenesis‐inspired 4D bioprinting. By patterning cell‐supportive microdomains within a responsive hydrogel, the approach programs in‐plane growth to encode target metrics.
Fereshteh Family, Aneela Davuluri, Athulya Martin, Kyungsuk Yum   +3 more
wiley   +2 more sources

Spatiotemporal Thermal Modulation and Patterning using a Programmable 1024 Element Microheater Array [PDF]

Advanced Science, EarlyView.
Programmable microheater arrays are essential for a variety of applications. However, large arrays have thus far not been realized. We introduce a programmable 32×$\times$32 microheater array consisting of heating elements – each smaller than 300 μm$\umu{\rm m}$.
Rahul Goyal, Jang‐Hwan Han, Sadaf Pashapour, Peer Fischer   +3 more
wiley   +2 more sources

Thermoresponsive surface functionalization of FeRh alloy through PNIPAM grafting [PDF]

Modern Electronic Materials
The smart thermoresponsive composite of PNIPAM/FeRh by chemical grafting of PNIPAM polymer on substrate of FeRh alloy were fabricated and studied. The characteristic peaks at 1690 (C=O), 2480–3000 (CH), and 3280 (N–H) observed on IR-FTIR spectra of ...
Abdulkarim A. Amirov, Maxim D. Popov, Timur R. Nizamov, Elizaveta S. Permyakova, Tatiana S. Ilina, Andrei V. Turutin, Olga A. Guselnikova, Dmitry A. Kiselev, Yuri N. Parkhomenko   +8 more
doaj   +4 more sources

Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer [PDF]

Colloid and Polymer Science, 2017
In this paper, we report the synthesis and self-assembly of a novel thermoresponsive PNIPAM60–b-PDMS70–b-PNIPAM60 triblock copolymer in aqueous solution. The copolymer used a commercially available precursor modified with an atom transfer radical polymerization (ATRP) initiator to produce an ABA triblock copolymer via ATRP.
Cook, Michael T., Filippov, Sergey K., Khutoryanskiy, Vitaliy V.   +2 more
core   +6 more sources

Thermal Phase Behavior of PNIPAM-Based Hydrogels: Different Scenarios and Implications in Injectable Hydrogel Design [PDF]

Gels
Poly(N-isopropylacrylamide) (PNIPAM)-based hydrogels are “smart” materials of great interest and demand, primarily in a variety of biomedical applications, due to their LCST close to physiological temperature.
Svetlana L. Kotova, Valeriya S. Kukanova, Sergei V. Kostjuk, Yuri M. Efremov, Yury A. Rochev, Anastasia A. Frolova, Peter S. Timashev   +6 more
doaj   +2 more sources

Atmospheric Water Harvesting Through Polymer Hydrogel Sorbents: Materials Chemistry, Design Strategies, and Applications [PDF]

Advanced Science, EarlyView.
Polymer‐based hydrogels have emerged as promising materials for atmospheric water harvesting (AWH) due to their high water affinity, tunable network structure, and excellent moisture adsorption‐desorption performance. Functional hydrogel systems enable efficient water capture and controlled release under low‐energy conditions, offering a sustainable ...
Swagata Datta, Sushmit Sen, Nilanjan Dey, Amrita Chatterjee, Ananya Sadhu, Sudipta Sarkar, Pradip K. Maji   +6 more
wiley   +2 more sources

Thermoresponsive Alginate-Graft-pNIPAM/Methyl Cellulose 3D-Printed Scaffolds Promote Osteogenesis In Vitro

Gels, 2023
In this work, a sodium alginate-based copolymer grafted by thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) chains was used as gelator (Alg-g-PNIPAM) in combination with methylcellulose (MC).
Aikaterini Gialouri, Sofia Falia Saravanou, Konstantinos Loukelis, Maria Chatzinikolaidou, George Pasparakis, Nikolaos Bouropoulos   +5 more
doaj   +2 more sources

A mouse model of mechanical stress injury to the basal ganglia using thermosensitive PNIPAM hydrogel for intracerebral hemorrhage research [PDF]

Animal Models and Experimental Medicine, EarlyView.
In this study, we established a novel mouse model of intracerebral hemorrhage (ICH) by stereotactically injecting thermosensitive PNIPAM hydrogel into the internal capsule to impose localized mechanical stress on the corticospinal tract, which provides a straightforward and reproducible tool for preclinical studies on focal mechanical stress–induced ...
Mingxi Li, Yujie Chen, Rongsu Huang, Min Xia, Chao Mi, Yuan Tian, Peiwen Guo, Taotao Jin, Shilei Hao, Hua Feng, Yujie Chen, Zhi Chen   +11 more
wiley   +2 more sources