Solid polymer substrates and smart fibres for the selective visual detection of TNT both in vapour and in aqueous media

RSC Advances ◽  
2014 ◽  
Vol 4 (49) ◽  
pp. 25562-25568 ◽  
Author(s):  
Jesús L. Pablos ◽  
Miriam Trigo-López ◽  
Felipe Serna ◽  
Félix C. García ◽  
José M. García
Keyword(s):  
Polymer Films ◽  
Visual Detection ◽  
Aqueous Media ◽  
Solid Polymer ◽  
Polymer Substrates

Visual detection of the explosive TNT with sensory polymer films and coated fibres.

Solid Polymer Substrates and Coated Fibers Containing 2,4,6-Trinitrobenzene Motifs as Smart Labels for the Visual Detection of Biogenic Amine Vapors

2015 ◽  
Vol 21 (24) ◽  
pp. 8733-8736 ◽  
Author(s):  
Jesús L. Pablos ◽  
Saúl Vallejos ◽  
Asunción Muñoz ◽  
María J. Rojo ◽  
Felipe Serna ◽  
...  
Keyword(s):  
Biogenic Amine ◽  
Visual Detection ◽  
Solid Polymer ◽  
Polymer Substrates

Polylactide-based stent coatings: biodegradable polymeric coatings capable of maintaining sustained release of the thrombolytic enzyme streptokinase

2020 ◽  
Vol 92 (8) ◽  
pp. 1329-1340
Author(s):  
A. G. Kolmakov ◽  
A. S. Baikin ◽  
S. V. Gudkov ◽  
K. N. Belosludtsev ◽  
E. O. Nasakina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Films ◽  
De Novo ◽  
Membrane Surface ◽  
Aqueous Media ◽  
Polymeric Coatings ◽  
Short Term ◽  
Thrombolytic Activity ◽  
Viable Cells ◽  
Nitinol Stents

AbstractThe paper describes synthesis and testing of novel biodegradable polylactide-based polymer membranes with desired mechanical properties, which are capable of sustained and directed release of biomacromolecules with high molecular weight (in particular, streptokinase; m.w. 47 kDa). Streptokinase is a pharmaceutical agent, possessing a pronounced thrombolytic activity. The membranes synthesized had a percentage elongation of 2–11% and tensile strength of 25–85 MPa. They were biodegradable – yet being stored in aqueous media in the absence of biological objects, would be dissolved by no more than 10% in 6 months. The synthesized membranes were capable of controlled release of streptokinase into the intercellular space, with the enzyme retaining more than 90% of its initial activity. The rate of streptokinase release from the membranes varied from 0.01 to 0.04 mg/day per cm2 of membrane surface. The membrane samples tested in the work did not have any short-term toxic effects on the cells growing de novo on the membrane surface. The mitotic index of those cells was approximately 1.5%, and the number of non-viable cells on the surface of the polymer films did not exceed 3–4% of their total amount. The implantation of the synthesized polymers – as both individual films and coatings of nitinol stents – was not accompanied by any postoperative complications. The subsequent histological examination revealed no abnormalities. Two months after the implantation of polymer films, only traces of polylactide were found in the implant-surrounding tissues. The implantation of stents coated with streptokinase-containing polymers resulted in the formation of a mature and thick connective-tissue capsules. Thus, the polylactide membranes synthesized and tested in this work are biodegradable, possess the necessary mechanical properties and are capable of sustained and directed release of streptokinase macromolecules.

Adhesion of photocurable acrylates to solid polymer substrates

1989 ◽  
Vol 38 (11) ◽  
pp. 2037-2055 ◽  
Author(s):  
S. Jönsson ◽  
C. G. Gölander ◽  
A. Biverstedt ◽  
S. Göthe ◽  
P. Stenius
Keyword(s):  
Solid Polymer ◽  
Polymer Substrates

Visual detection of carbonate ions by inverse opal photonic crystal polymers in aqueous solution

2015 ◽  
Vol 3 (37) ◽  
pp. 9524-9527 ◽  
Author(s):  
Lu Li ◽  
Bin Zhao ◽  
Yue Long ◽  
Jin-Ming Gao ◽  
Guoqiang Yang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photonic Crystal ◽  
Polymer Films ◽  
Visual Detection ◽  
Color Change ◽  
Ph Dependence ◽  
Inverse Opal ◽  
Carbonate Ions ◽  
Crystal Polymer

This communication demonstrates a facile method to detect CO32− by naked eyes through color change based on the pH dependence of inverse opal photonic crystal polymer films.

Visual detection of fluoride based on supramolecular aggregates of perylene diimide in 100% aqueous media

2021 ◽  
Vol 188 (10) ◽  
Author(s):  
Xiao Gao ◽  
Hao Zhang ◽  
Yao Shen ◽  
Yining Li ◽  
Keren Xiao ◽  
...  
Keyword(s):  
Visual Detection ◽  
Aqueous Media ◽  
Perylene Diimide ◽  
Supramolecular Aggregates

A reversible fluorescent-colorimetric chemosensor based on a novel Schiff base for visual detection of CO32− in aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72185-72192 ◽  
Author(s):  
Anupam Ghorai ◽  
Jahangir Mondal ◽  
Rukmani Chandra ◽  
Goutam K. Patra
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Visual Detection ◽  
Colorimetric Detection ◽  
Aqueous Media ◽  
Rapid Response ◽  
Colorimetric Chemosensor ◽  
Excellent Selectivity

A novel Schiff base receptor L has been fabricated for fluorescent-colorimetric detection of CO32− in aqueous media. L shows an excellent selectivity, rapid response and reversibility and its sensitivity for CO32− is the lowest ever found (96 nM).

Self-assembled conjugated polymer/carboxymethyl chitosan grafted poly(p-dioxanone) nanomicelles and their use in functionalized indicator paper for fast and visual detection of a banned food dye

2014 ◽  
Vol 5 (14) ◽  
pp. 4251-4258 ◽  
Author(s):  
Hui Chen ◽  
Meiwan Chen ◽  
Xiaohui Wang ◽  
Runcang Sun
Keyword(s):  
Conjugated Polymer ◽  
Visual Detection ◽  
Aqueous Media ◽  
Carboxymethyl Chitosan ◽  
Fluorescent Nanoparticles ◽  
Selective Detection ◽  
Food Dye ◽  
Self Assembled ◽  
Polysaccharide Derivative

Fluorescent nanoparticles composed of a self-assembled polysaccharide derivative and a conjugated polymer show greatly improved sensitivity for the selective detection of a banned food dye in aqueous media.

The photochemistry of tyrosine and tyrosine derivatives in solid polymer films

1983 ◽  
Vol 3 (6) ◽  
pp. 421-434 ◽  
Author(s):  
Richard Sakurovs ◽  
C.H. Nicholls ◽  
M.T. Pailthorpe
Keyword(s):  
Polymer Films ◽  
Solid Polymer ◽  
Tyrosine Derivatives
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