Results 81 to 90 of about 10,801 (230)

Large amplitude oscillatory shear studies on dense PNIPAM microgel colloidal glasses

open access: yes, 2023
We report here the yielding behavior and large amplitude oscillatory shear (LAOS) response of dense colloidal suspensions of two types of thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) microgel spherical particles: (i) having core–shell (CS ...
Surajit Dhara   +7 more
core   +1 more source

Kinetic processes at the demixing transition of PNIPAM solutions

open access: yes, 2013
peer reviewedKinetic processes, which are joined with mass transport, are studied in the vicinity of the sharp LCST-type demixing transition of semi-dilute aqueous poly(N-isopropyl acrylamide) (PNIPAM) solutions. These processes are slow as compared to
Müller-Buschbaum, P.   +6 more
core   +2 more sources

Making Sweat Measurable: Induction, Sampling, and Refreshment in Wearable Biofluid Sensing

open access: yesAdvanced Science, EarlyView.
Wearable sweat sensing relies not only on chemical detection but also on controlled biofluid management. This Review integrates sweat physiology, induction strategies, and microfluidic sampling architectures, demonstrating how flux, transport, and refreshment shape measurement reliability.
Soyoung Shin, Wei Gao
wiley   +1 more source

3395 An Injectable Sulfonated Reversible Thermal Gel for Controlled and Localized Delivery of Vascular Endothelial Growth Factor to Promote Cardiac Protection After a Myocardial Infarction

open access: yesJournal of Clinical and Translational Science, 2019
OBJECTIVES/SPECIFIC AIMS: This study aims to evaluate an injectable sulfonated reserve thermal gel (SPSHU-PNIPAM) for angiogenic growth factor delivery by examining the vascularization and cardioprotective properties of the polymer system.
Adam J Rocker   +3 more
doaj   +1 more source

Design of acrylamide-based thermoresponsive copolymer with potential capability for physical network formation in water: a molecular dynamics study

open access: yesMaterials Research Express, 2022
In this work, a new smart copolymer of poly(N-isopropylacrylamide)- b -polyacrylamide- b -poly(N-isopropylacrylamide) (PNIPAm- b -PAM- b -PNIPAm) was designed as an efficient thermo-sensitive polymer with a potential for formation a physical network ...
Sajad Rasouli   +2 more
doaj   +1 more source

A PNIPAM-based fluorescent nanothermometer with ratiometric readout

open access: yesChem. Commun., 2011
A novel molecular thermometer with ratiometric fluorescence readout was designed and synthesized. Within a sensing temperature range of 33 to 41 °C, the fluorescence color of the nanothermometer changes from blue to green. The ratiometric change magnitude is about 8.7-fold, rendering the visual differentiation of color by the naked eyes feasible.
Chen, Chun-Yen, Chen, Chao-Tsen
openaire   +3 more sources

Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity

open access: yesScientific Reports, 2021
This study was designed to preparecarboxyl-functionalized poly (N-isopropylacrylamide) PNIPAM microgels having excellent catalytic properties.Recently, researchers are trying to fabricate cost effective and efficient hybrid catalytic materials for the ...
Mohib Ullah Kakar   +9 more
doaj   +1 more source

Organic Electrochemical Transistors for Neuromorphic Bioelectronics: Materials and Manufacturing Technologies

open access: yesAdvanced Science, EarlyView.
Organic electrochemical transistors bridge biological ionic signaling and neuromorphic computation through volumetric electrochemical gating. This review connects Organic mixed ionic–electronic conductor materials, device architectures, and manufacturing technologies to show how geometry, ion transport, and fabrication strategies program plasticity ...
Hyunjin Lee   +5 more
wiley   +1 more source

Programmable Budding and Fission of Janus Polymersomes for Tunable Cargo Release

open access: yesAngewandte Chemie, EarlyView.
A thermodynamic framework establishes the conditions for the formation of kinetically stable Janus polymersomes using a solvent‐assisted strategy. Osmotic stress subsequently drives their membrane remodeling from reversible budding to controlled fission.
Chloé Manseau   +6 more
wiley   +2 more sources

Optimizing the alignment of thermoresponsive poly(N-isopropyl acrylamide) electrospun nanofibers for tissue engineering applications: A factorial design of experiments approach.

open access: yesPLoS ONE, 2019
Thermoresponsive polymers, such as poly(N-isopropyl acrylamide) (PNIPAM), have been identified and used as cell culture substrates, taking advantage of the polymer's lower critical solution temperature (LCST) to mechanically harvest cells.
Rachel E Young   +6 more
doaj   +1 more source

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