Results 11 to 20 of about 2,523 (182)

Synthesis and characterization of PIL/pNIPAAm hybrid hydrogels

Current Directions in Biomedical Engineering, 2016
In this study, varying amounts of NIPAAm and an ionic liquid (IL), namely 1-vinyl-3-isopropylimidazolium bromide ([ViPrIm]+[Br]−), have been used to synthesize hybrid hydrogels by radical emulsion polymerization. Amounts of 70/30%, 50/50%, 30/70%, 15/85%
Pfensig Sylvia, Arbeiter Daniela, Schmitz Klaus-Peter, Grabow Niels, Eickner Thomas, Illner Sabine   +5 more
doaj   +2 more sources

Dual-Responsive Chitosan-Grafted PNIPAAm Hydrogel Eye Drop Incorporating Insulin-Imprinted Microgels for Dry Eye Syndrome Treatment. [PDF]

Macromol Biosci
ABSTRACT Dry eye syndrome (DES) happens as a result of inadequate tear secretion or excessive evaporation, which leads to ocular surface irritation and damage. A major therapeutic challenge is maintaining effective drug concentrations, as topical formulations are rapidly cleared by blinking and tear turnover.
Hosseini MA, Khademi R, Shokri M, Ghiasi R, Doostmohammadi A, Kharaziha M, Salehi S.   +6 more
europepmc   +2 more sources

Thermoresponsive Complex Coacervates as Advanced Carriers for Cell-Laden Liquid-Core Capsules for Biomedical Applications. [PDF]

Small
A thermoresponsive complex coacervate is engineered to transport liquid‐core capsules loaded with human adipose‐derived stem cells, forming modular, hierarchically organized tissue‐forming units. This injectable platform enables precise spatial control while maintaining high cell viability, offering a versatile and bioinspired strategy for minimally ...
Monteiro LPG, Carreira M, Es Sayed J, Kamperman M, Rodrigues JMM, Mano J.   +5 more
europepmc   +2 more sources

New Alginate/PNIPAAm Matrices for Drug Delivery [PDF]

Polymers, 2019
This paper deals with a comparative study on the interpolymeric complexes of alginate poly(N-isopropyl acryl amide (PNIPAAm) and corresponding graft copolymers with various compositions in respect to their toxicity, biocompatibility and in vitro and in vivo release of theophylline (THP).
Catalina N. Cheaburu-Yilmaz, Catalina Elena Lupuşoru, Cornelia Vasile   +2 more
openaire   +3 more sources

Trithiocarbonate-Functionalized PNiPAAm-Based Nanocomposites for Antimicrobial Properties [PDF]

Polymers, 2018
In this study, four trithiocarbonate-functionalized PNiPAAms with different molecular weights were synthesized and used as a matrix to form composites with silver nanoparticles. Nanocomposites with several polymer-to-silver ratios P:Ag+ were prepared in order to evaluate the influence of silver loading.
Milène Tan, Lenke Horvàth, Priscilla S. Brunetto, Katharina M. Fromm   +3 more
openaire   +4 more sources

The Antibacterial Performance of Implant Coating Made of Vancomycin-Loaded Polymer Material: An In Vitro Study

Surfaces, 2023
Bacterial adhesion and biofilm formation on the surface of titanium implants are the main causes of implant-associated infection. An antibacterial coating on the implant surface can reduce the risk of biofilm formation.
Ali Alenezi
doaj   +1 more source

Studies on porosity in poly(N-isopropylacrylamide) hydrogels for fast-responsive piezoresistive microsensors [PDF]

Journal of Sensors and Sensor Systems, 2021
Porous poly(N-isopropylacrylamide) (PNIPAAm) hydrogels with pore diameters in the nanometer and the micrometer range were synthesized using two variations of the surfactant-based template method.
D. Franke, G. Gerlach
doaj   +1 more source

Hidrogéis semi-IPN baseados em rede de alginato-Ca2+ com PNIPAAm entrelaçado: propriedades hidrofílicas, morfológicas e mecânicas Semi-IPN hydrogels based on alginate-Ca2+ network and PNIPAAm: hydrophilic, morphological and mechanical properties

Polímeros, 2008
Neste trabalho, a termossensibilidade dos hidrogéis do tipo semi-IPN baseados em rede de alginato-Ca2+com poli(N-isopropil acrilamida) (PNIPAAm) entrelaçado, com diferentes teores de alginato e de PNIPAAm, foi caracterizada por meio de medidas de grau de
Márcia R. de Moura, Adley F. Rubira, Edvani C. Muniz   +2 more
doaj   +1 more source

Temperature responsive chromatography for therapeutic drug monitoring with an aqueous mobile phase

Scientific Reports, 2021
Therapeutic drug monitoring is a key technology for effective pharmacological treatment. In the present study, a temperature-responsive chromatography column was developed for safe and simple therapeutic drug monitoring without the use of organic ...
Kenichi Nagase, Teruno Nishiyama, Masakazu Inoue, Hideko Kanazawa   +3 more
doaj   +1 more source

Fabrication of device with poly(N-isopropylacrylamide)-b-ssDNA copolymer brush for resistivity study

Journal of Nanobiotechnology, 2017
In this study, we grafted bromo-terminated poly(N-isopropylacrylamide) (PNIPAAm) brushes onto thin gold films deposited on silicon, and then reacted with NaN3 to produce azido-terminated PNIPAAm brushes.
Yi-Zu Liu, May-Show Chen, Chih-Chia Cheng, Shih-Hsun Chen, Jem-Kun Chen   +4 more
doaj   +1 more source