Temperature and pH dual stimuli responsive PCL-b-PNIPAAm block copolymer assemblies and the cargo release studies

2017 ◽  
Vol 55 (8) ◽  
pp. 1383-1396 ◽  
Author(s):  
Sachin S. Patil ◽  
Prakash P. Wadgaonkar
Keyword(s):  
Block Copolymer ◽  
Stimuli Responsive ◽  
Release Studies

Photo- and Thermo-Dual-Responsive Organic/Inorganic Hybrid Materials

2013 ◽  
Vol 538 ◽  
pp. 181-184 ◽  
Author(s):  
Xin De Tang ◽  
Ye Chen ◽  
Fa Qi Yu ◽  
Mei Shan Pei
Keyword(s):  
Block Copolymer ◽  
Hybrid Materials ◽  
Self Assembly ◽  
Polymeric Materials ◽  
Stimuli Responsive ◽  
Inorganic Hybrid ◽  
Dual Responsive ◽  
Hexyl Methacrylate ◽  
Poly Ethylene ◽  
Copolymer Poly

Organic/inorganic hybrid materials based upon stimuli-responsive copolymers have attracted an inceasing attention. Compared with the polymeric materials, these hybrid materials can form aggregates in aqueous solution with much more stable shape-persistance due to the inorganic structure, which facilitate the mass delivery and long-term life. A novel hybrid material based on a new reactive block copolymer, poly(ethylene oxide)-block-poly{3-(trimethoxysilyl)propyl methacrylate-co-N-isopropylacrylamide-co-6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate} [PEO-P(TMSPMA-NIPAM-AzoMA)] was synthesized via atom transfer radical polymerization (ATRP). The vesicles were obtained by self-assembly of the resulting block copolymer in a selective solvent, and then the PTMSPMA block was subjected to hydrolysis and polycondensation reaction to fix vesicle wall in the presence of triethylamine as a catalyst. The photo- and thermo- dual-responsive properties of the vesicles were investigated.

Effects of pH on the Stimuli-Responsive Characteristics of Double Betaine Hydrophilic Block Copolymer PGLBT-b-PSPE

Langmuir ◽  
2020 ◽  
Vol 36 (7) ◽  
pp. 1727-1736
Author(s):  
Jongmin Lim ◽  
Hideki Matsuoka ◽  
Yoshiyuki Saruwatari
Keyword(s):  
Block Copolymer ◽  
Stimuli Responsive ◽  
Effects Of Ph ◽  
Double Betaine

scholarly journals Improving Printability of a Thermoresponsive Hydrogel Biomaterial Ink by Nanoclay Addition

2020 ◽  
Author(s):  
Chen Hu ◽  
Lukas Hahn ◽  
Mengshi Yang ◽  
Alexander Altmann ◽  
Philipp Stahlhut ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Viscoelastic Properties ◽  
Critical Properties ◽  
Stimuli Responsive ◽  
Hybrid Hydrogel ◽  
Thermoresponsive Hydrogel ◽  
Enhanced Resolution ◽  
Copolymer Poly ◽  
Significant Attention ◽  
Made In

As a promising biofabrication technology, extrusion-based bioprinting has gained significant attention in the last decade and major advances have been made in the development of bioinks. However suitable synthetic and stimuli-responsive bioinks are underrepresented in this context. <a>In this work, we described a hybrid system of nanoclay Laponite XLG and thermoresponsive block copolymer poly(2-methyl-2-oxazoline)-<i>b</i>-poly(2-<i>n</i>-propyl-2-oxazine) (PMeOx-<i>b</i>-PnPrOzi) as a novel biomaterial ink, and discussed its critical properties relevant for extrusion-based bioprinting, including viscoelastic properties and printability.</a> <a>The hybrid hydrogel retains the thermogelling properties but is strengthened by the added clay (over 5 kPa of storage modulus, and 240 Pa of yield stress). Importantly, the shear-thinning character is further enhanced, which, in combination with very rapid viscosity recovery (~1 s) and structure recovery (~10 s) is highly beneficial for extrusion-based 3D printing. Accordingly, various 3D patterns could be printed with markedly enhanced resolution and shape fidelity compared to the biomaterial ink without added clay.</a>

Double stimuli-responsive polysaccharide block copolymers as green macrosurfactants for near-infrared photodynamic therapy

Soft Matter ◽  
2019 ◽  
Vol 15 (6) ◽  
pp. 1423-1434 ◽  
Author(s):  
Benjamin B. Breitenbach ◽  
Elena Steiert ◽  
Matthias Konhäuser ◽  
Lea-Marie Vogt ◽  
Yujen Wang ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Near Infrared ◽  
Aqueous Media ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
Water Dispersible

The NIR absorbing photosensitizer phthalocyanine zinc (PC(Zn)) was stabilized in aqueous media as water-dispersible nanoparticles with a reduction- and pH-responsive full polysaccharide block copolymer.

Length effect of stimuli-responsive block copolymer prodrug filomicelles on drug delivery efficiency

2020 ◽  
Vol 318 ◽  
pp. 67-77 ◽  
Author(s):  
Wendong Ke ◽  
Nannan Lu ◽  
Abd Al-Wali Mohammed M. Japir ◽  
Qinghao Zhou ◽  
Longchang Xi ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Block Copolymer ◽  
Stimuli Responsive ◽  
Length Effect ◽  
Delivery Efficiency

Temperature and Photo Dual‐Stimuli Responsive Block Copolymer Self‐Assembly Micelles for Cellular Controlled Drug Release

2020 ◽  
pp. 2000291
Author(s):  
Zi‐Hao Zhou ◽  
Jian‐Guo Zhang ◽  
Qing Chen ◽  
Yan‐Ling Luo ◽  
Feng Xu ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Drug Release ◽  
Self Assembly ◽  
Controlled Drug Release ◽  
Stimuli Responsive
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