Effect of composition and synthetic route on the microstructure of biodegradable diblock copolymer, poly(ε-caprolactone-co-L-lactide)-b-poly(ethylene glycol)

2008 ◽  
Vol 16 (3) ◽  
pp. 231-237 ◽  
Author(s):  
Younjin Min ◽  
Seongnam Lee ◽  
Jung-Ki Park ◽  
Kuk Young Cho ◽  
Shi-Joon Sung
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Synthetic Route ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Copolymer Poly

A biocompatible cobaltporphyrin-based complex micelle constructed via supramolecular assembly for oxygen transfer

2016 ◽  
Vol 4 (5) ◽  
pp. 857-862 ◽  
Author(s):  
Liangliang Shen ◽  
Rui Qu ◽  
Hejin Shi ◽  
Fan Huang ◽  
Yingli An ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Oxygen Transfer ◽  
Supramolecular Assembly ◽  
Poly Ethylene Glycol ◽  
Hierarchical Assembly ◽  
Poly Ethylene ◽  
Copolymer Poly

Herein, a complex micelle as an oxygen nano-carrier is constructed through the hierarchical assembly of the diblock copolymer poly(ethylene glycol)-block-poly(l-lysine) (PEG-b-PLys), tetrakis(4-sulfonatophenyl)porphinato cobalt(ii) (Co(ii)TPPS), a heptapeptide (Cys-His-His-His-His-His-His) and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin (TM-β-CD).

Reversibly cross-linked poly(ethylene glycol)–poly(amino acid)s copolymer micelles: a promising approach to overcome the extracellular stability versus intracellular drug release challenge

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20025-20034 ◽  
Author(s):  
Yuling Li ◽  
Sai Wang ◽  
Dandan Zhu ◽  
Yuling Shen ◽  
Baixiang Du ◽  
...  
Keyword(s):  
Amino Acid ◽  
Drug Release ◽  
Ethylene Glycol ◽  
Lipoic Acid ◽  
Triblock Copolymer ◽  
Intracellular Delivery ◽  
Poly Ethylene Glycol ◽  
Copolymer Micelles ◽  
Poly Ethylene ◽  
Copolymer Poly

Reversibly shell cross-linked micelles based on a lipoic acid (LA) decorated triblock copolymer poly(ethylene glycol)-b-poly(γ-benzyl-l-glutamate)-b-poly(l-phenylalanine) have been developed for efficient intracellular delivery of DOX.

FhuA deletion variant Δ1-159 overexpression in inclusion bodies and refolding with Polyethylene-Poly(ethylene glycol) diblock copolymer

2011 ◽  
Vol 77 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Tamara Dworeck ◽  
Anne-Kathrin Petri ◽  
Noor Muhammad ◽  
Marco Fioroni ◽  
Ulrich Schwaneberg
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Inclusion Bodies ◽  
Poly Ethylene Glycol ◽  
Deletion Variant ◽  
Poly Ethylene

scholarly journals Hybrid Mesoporous Silica Nanoparticles Grafted with 2-(tert-butylamino)ethyl Methacrylate-b-poly(ethylene Glycol) Methyl Ether Methacrylate Diblock Brushes as Drug Nanocarrier

Molecules ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 195 ◽  
Author(s):  
Abdullah M Alswieleh ◽  
Abeer M Beagan ◽  
Bayan M Alsheheri ◽  
Khalid M Alotaibi ◽  
Mansour D Alharthi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Ethylene Glycol ◽  
Silica Nanoparticles ◽  
Methyl Ether ◽  
Diblock Copolymer ◽  
Mesoporous Silica Nanoparticles ◽  
Poly Ethylene Glycol ◽  
Ethyl Methacrylate ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

This paper introduces the synthesis of well-defined 2-(tert-butylamino)ethyl methacrylate-b-poly(ethylene glycol) methyl ether methacrylate diblock copolymer, which has been grafted onto mesoporous silica nanoparticles (PTBAEMA-b-PEGMEMA-MSNs) via atom transfer radical polymerization (ATRP). The ATRP initiators were first attached to the MSN surfaces, followed by the ATRP of 2-(tert-butylamino)ethyl methacrylate (PTBAEMA). CuBr2/bipy and ascorbic acid were employed as the catalyst and reducing agent, respectively, to grow a second polymer, poly(ethylene glycol) methyl ether methacrylate (PEGMEMA). The surface structures of these fabricated nanomaterials were then analyzed using Fourier Transform Infrared (FTIR) spectroscopy. The results of Thermogravimetric Analysis (TGA) show that ATRP could provide a high surface grafting density for polymers. Dynamic Light Scattering (DLS) was conducted to investigate the pH-responsive behavior of the diblock copolymer chains on the nanoparticle surface. In addition, multifunctional pH-sensitive PTBAEMA-b-PEGMEMA-MSNs were loaded with doxycycline (Doxy) to study their capacities and long-circulation time.

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