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Showing 1 to 12 of 482 entries
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Nitric oxide-producing polyurethanes

Alliances for Graduate Education and the Professoriate AND Program Evaluation

Jun HW, West JL.
GSID: 8SX_pdfsfc0J
HW Jun, LJ Taite, JL West - Biomacromolecules, 2005 - ACS Publications

Thrombus formation and eventual intimal hyperplasia are the leading causes of small-diameter synthetic vascular graft failure. To combat these issues, we have incorporated a …

Disulfide-based cationic polyurethanes for gene transfection in human primary cells.

Journal of controlled release : official journal of the Controlled Release Society

Tang X, Zhao P, Wen X, Lin C.
PMID: 27005123
J Control Release. 2015 Sep 10;213:e17-8. doi: 10.1016/j.jconrel.2015.05.025. Epub 2015 Aug 19.

No abstract available.

High Modulus Biodegradable Polyurethanes for Vascular Stents: Evaluation of Accelerated in vitro Degradation and Cell Viability of Degradation Products.

Frontiers in bioengineering and biotechnology

Sgarioto M, Adhikari R, Gunatillake PA, Moore T, Patterson J, Nagel MD, Malherbe F.
PMID: 26000274
Front Bioeng Biotechnol. 2015 May 06;3:52. doi: 10.3389/fbioe.2015.00052. eCollection 2015.

We have recently reported the mechanical properties and hydrolytic degradation behavior of a series of NovoSorb™ biodegradable polyurethanes (PUs) prepared by varying the hard segment (HS) weight percentage from 60 to 100. In this study, the in vitro degradation...

Engineering a degradable polyurethane intravaginal ring for sustained delivery of dapivirine.

Drug delivery and translational research

Kaur M, Gupta KM, Poursaid AE, Karra P, Mahalingam A, Aliyar HA, Kiser PF.
PMID: 25788241
Drug Deliv Transl Res. 2011 Jun;1(3):223-37. doi: 10.1007/s13346-011-0027-1.

We describe the engineering of a degradable intravaginal ring (IVR) for the delivery of the potent HIV-1 reverse transcriptase inhibitor dapivirine. The degradable polymer used in fabricating the device incorporated poly(caprolactone) ester blocks in a poly(tetramethylene ether) glycol ABA...

Dynamic Phosphorescent Probe for Facile and Reversible Stress Sensing.

Advanced materials (Deerfield Beach, Fla.)

Filonenko GA, Khusnutdinova JR.
PMID: 28318067
Adv Mater. 2017 Jun;29(22). doi: 10.1002/adma.201700563. Epub 2017 Mar 20.

Dynamic phosphorescent copper complex incorporated into the main chain of polyurethanes produces a facile and reversible response to tensile stress. In contrast to common deformation sensors, the applied stress does not lead to bond scission, or alters the phosphor...

Solid-state circularly polarised luminescence of atropisomeric fluorophores embedded in achiral myo-inositol-containing polyurethanes.

Organic & biomolecular chemistry

Amako T, Nakabayashi K, Sudo A, Fujiki M, Imai Y.
PMID: 25616165
Org Biomol Chem. 2015 Mar 14;13(10):2913-7. doi: 10.1039/c4ob02553a.

We investigated the ground- and photoexcited-state chiralities of two chiral fluorophores with a rigid framework embedded in two achiral polyurethanes as the solid matrices. As the fluorophores, we used two pairs of atropisomeric binaphthyl derivatives, (R)-(−)-1,1′-binaphthyl-2,2′-diyl hydrogen phosphate [(R)-1a]...

Synthesis of Transesterified Palm Olein-Based Polyol and Rigid Polyurethanes from this Polyol.

Journal of the American Oil Chemists' Society

Arniza MZ, Hoong SS, Idris Z, Yeong SK, Hassan HA, Din AK, Choo YM.
PMID: 25684774
J Am Oil Chem Soc. 2015;92:243-255. doi: 10.1007/s11746-015-2592-9. Epub 2015 Feb 03.

Transesterification of palm olein with glycerol can increase the functionality by introducing additional hydroxyl groups to the triglyceride structure, an advantage compared to using palm olein directly as feedstock for producing palm-based polyol. The objective of this study was...

Microbial degradation, cytotoxicity and antibacterial activity of polyurethanes based on modified castor oil and polycaprolactone.

Journal of biomaterials science. Polymer edition

Uscátegui YL, Arévalo FR, Díaz LE, Cobo MI, Valero MF.
PMID: 27654066
J Biomater Sci Polym Ed. 2016 Dec;27(18):1860-1879. doi: 10.1080/09205063.2016.1239948. Epub 2016 Oct 11.

The objective of this study was to assess the effects of type of polyol and concentration of polycaprolactone (PCL) in polyurethanes (PUs) on microbial degradability, cytotoxicity, biological properties and antibacterial activity to establish whether these materials may have biomedical...

Design and Synthesis of Waterborne Polyurethanes.

Advanced materials (Deerfield Beach, Fla.)

Kang SY, Ji Z, Tseng LF, Turner SA, Villanueva DA, Johnson R, Albano A, Langer R.
PMID: 29543353
Adv Mater. 2018 May;30(18):e1706237. doi: 10.1002/adma.201706237. Epub 2018 Mar 15.

Waterborne polyurethanes (WBPUs) have attracted increasing attention in a wide range of industrial applications because of their versatile properties as well as ecofriendly nature. Although extensive research has been carried out on WBPU synthesis, the roles of some of...

Waterborne Polyurethanes with Tunable Fluorescence and Room-Temperature Phosphorescence.

ACS applied materials & interfaces

Zhou C, Xie T, Zhou R, Trindle CO, Tikman Y, Zhang X, Zhang G.
PMID: 26191971
ACS Appl Mater Interfaces. 2015 Aug 12;7(31):17209-16. doi: 10.1021/acsami.5b04075. Epub 2015 Jul 30.

Single-component materials with both fluorescence and room-temperature phosphorescence (RTP) are useful for ratiometric sensing and imaging applications. On the basis of a general design principle, an amino-substituted benzophenone is covalently incorporated into waterborne polyurethanes (WPU) and results in fluorescence...

Double molecular imprinting--a new sensor concept for improving selectivity in the detection of polycyclic aromatic hydrocarbons (PAHs) in water.

Fresenius' journal of analytical chemistry

Dickert FL, Achatz P, Halikias K.
PMID: 11605749
Fresenius J Anal Chem. 2001 Sep;371(1):11-5. doi: 10.1007/s002160100955.

Highly selective and robust polymer coatings for the detection of polycyclic aromatic hydrocarbons (PAHs) in liquid media have been generated by use of an innovative method of molecular imprinting. By imprinting with two different templates, the selectivity of the...

Spectroscopic method for the determination of the ionic site concentration in solvent polymeric membranes and membrane plasticizers.

Analytical chemistry

Gyurcsányi RE, Lindner E.
PMID: 12199575
Anal Chem. 2002 Aug 15;74(16):4060-8. doi: 10.1021/ac020120k.

The built-in site density of either fixed sites or mobile hydrophobic ion sites determines whether a membrane is permselective for cations or anions of the sample. The molar ratio of the ionophore to the intrinsic or added ionic sites...

Showing 1 to 12 of 482 entries