Development of aliphatic biodegradable photoluminescent polymers

Abstract

Fig. 1. Labeling of the liposome. (A)Outline of the method. Cells were rapidly frozen, freeze-fractured, and evaporated with carbon (C) and platinum/carbon (Pt/C) in vacuum. The replica of the split membrane was digested with SDS to remove noncast molecules and labeled by GST-PH. Both the cytoplasmic and exoplasmic halves of the membrane were examined. (B) Labeling of small unilamellar liposome replicas. Freeze-fracture replicas of liposomes containing 95 mol % of phosphatidylcholine (PC) and 5 mol % of phosphatidylinositol or a phosphoinositide were labeled. Only liposomes containing PI(4,5)P 2 were labeled intensely by GST-PH. A PH mutant, GST-PH (K30N, K32N), which does not bind PI(4,5)P 2, showed little labeling in the PI(4,5)P 2-containing liposome. (C) Quantification of the GST-PH labeling in the liposomes. The number of gold particles per 1 m 2 of the liposome surface is shown (blue). The labeling on the convex (green) and concave (yellow) surfaces showed equivalent results.

Polymerizing Nonfluorescent Monomers without Incorporating any Fluorescent Agent Produces Strong Fluorescent Polymers

“…Fluorescent polymers [1][2][3][4][5] have been widely utilized in applications such as bacteria detecting, [ 6 , 7 ] DNA probing, [ 8 , 9 ] signal amplifi cation in diagnostics tests, [ 10 , 11 ] and light-harvesting or antennae. [ 12 ] In general, all these fl uorescent polymers are either intrinsically fl uorescent (e.g., conjugated polymers) or functionalized with a fl uorophore, [ 4 , 13 ] otherwise, the polymer has no fl uorescence activity.…”

Role of Biopolymers in Green Nanotechnology

“…On the other hand, the host polymers can influence the growth and spatial arrangement of the nanoparticles during the in situ synthesis, which makes them convenient templates for the preparation of nanoparticles of different morphologies. Furthermore, by selecting the polymer with certain favorable properties such as biocompatibility [35], conductivity [36] or photoluminescence [37], it is possible to obtain the nanocomposite materials for various technological purposes.…”

Adsorption of Fe(NO3)3 onto Activated Nylon-6,6 as a Container and a Possible “Smart” Corrosion Inhibitor-containing System

“…Following such treatment, the activated pellets of nylon-6,6 were rinsed with distilled water and then washed ultrasonically with acetone in order to eliminate any contaminant (Yang et al 2009). …”