نتایج جستجو برای: ph responsive polymer

تعداد نتایج: 312864  

Journal: :Advanced Materials Interfaces 2022

Abstract Bicontinuous cubic (Q) lyotropic liquid crystal (LLC)‐derived polymer networks possess periodic, uniform‐size, 3D‐interconnected nanopores that make them highly desirable organic materials for selective molecular separation and uptake applications. To date, there are no reported examples of a Q‐phase network with additional functional properties, such as catalytic reactivity, response ...

Journal: :Chemical communications 2010
Lin He Yi Jiang Chunlai Tu Guolin Li Bangshang Zhu Chengyu Jin Qi Zhu Deyue Yan Xinyuan Zhu

Dynamic diblock polymer PS-r-PEG formed via reversible acylhydrazone connection can be used to construct a pH-responsive self-assembled encapsulation system with high stability and sustained-release property, which shows potential in drug delivery.

2013
Hwan Kang Young - IL Jeong

pH-sensitive drug targeting using nanoparticles for cancer chemotherapy have been spotlighted in recent decades. Graft copolymer composed of poly (L-histidine) (PHS) and dextran (DexPHS) was synthesized and pH-sensitive nanoparticles were fabricated for pH-responsive drug delivery of doxorubicin (DOX). Nanoparticles of DexPHS showed pH-sensitive changes in particle sizes and drug release behavi...

Journal: :BMC chemistry 2021

Abstract Background The distribution of drugs could not be controlled in the conventional delivery systems. This has led to developing a specific nanoparticle-based system, called smart drug In cancer therapy, innovative biocompatible nanocarriers have received much attention for various ranges anti-cancer drugs. this work, effect an interesting and novel copolymer named "dimethyl acrylamide-tr...

Journal: :Nanoscale 2016
Aziliz Hervault Alexander E Dunn May Lim Cyrille Boyer Derrick Mott Shinya Maenosono Nguyen T K Thanh

Magnetic nanocarriers have attracted increasing attention for multimodal cancer therapy due to the possibility to deliver heat and drugs locally. The present study reports the development of magnetic nanocomposites (MNCs) made of an iron oxide core and a pH- and thermo-responsive polymer shell, that can be used as both hyperthermic agent and drug carrier. The conjugation of anticancer drug doxo...

Journal: :Biomaterials science 2016
Xifeng Liu Michael J Yaszemski Lichun Lu

We report a new crosslinked polymersome with pH-responsive swelling properties through acidic hydrolysis of hydrophobic contents from the amphiphilic polymer chains. Its unique stability under physiological conditions and large swelling capability under low pH conditions give this polymersome promising potential for anticancer drug delivery.

2013
Hanting Chen Yun Fang

Temperature responsive poly(N-isopropylacrylamide) (PNIPAM) exhibits a lower critical solution temperature (LCST) of approximately 32 °C in aqueous solution, below which the polymer is water soluble and above which it becomes water insoluble. The LCST of PNIPAM copolymer increases responding to hydrophilic block acrylic acid (AA). The copolymer is pH and temperature responsive. The duel respons...

Journal: :Chemical Communications 2021

Acetalated dextran (Ac-DEX) is a pH-responsive derivative polymer. Ac-DEX and its functional derivatives have been formulated as nano- or microparticles for drug delivery applications in the biomedical field.

Journal: :Bioconjugate chemistry 1999
C A Lackey N Murthy O W Press D A Tirrell A S Hoffman P S Stayton

Drug delivery systems that increase the rate and/or quantity of drug release to the cytoplasm are needed to enhance cytosolic delivery and to circumvent nonproductive cell trafficking routes. We have previously demonstrated that poly(2-ethylacrylic acid) (PEAAc) has pH-dependent hemolytic properties, and more recently, we have found that poly(2-propylacrylic acid) (PPAAc) displays even greater ...

Journal: :Molecules 2018
Vincenzo De Leo Francesco Milano Erminia Mancini Roberto Comparelli Livia Giotta Angelo Nacci Francesco Longobardi Antonella Garbetta Angela Agostiano Lucia Catucci

The present study aimed to develop and optimize liposome formulation for the colonic delivery of biologically active compounds. A strategy to facilitate such targeting is to formulate liposomes with a polymer coating sensitive to the pH shifts in the gastrointestinal tract. To this end, liposomes encapsulating curcumin-chosen as the biologically active compound model-and coated with the pH-resp...

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