The present review article is intended to direct attention to the technological advances made in the 2010-2014 quinquennium for the isolation and manufacture of nanofibrillar chitin and chitosan. Otherwise called nanocrystals or whiskers, n-chitin and n-chitosan are obtained either by mechanical chitin disassembly and fibrillation optionally assisted by sonication, or by e-spinning of solutions...

The immense scope of variation in dendritic molecules (hyper-branching, nano-sized, hydrophobicity/hydrophilicity, rigidity/flexibility balance, etc.) and their versatile functionalization, with the possibility of multivalent binding, permit the design of highly improved, novel materials. Dendritic-based materials are therefore viable alternatives to conventional polymers. The overall aim of th...

Highlight Research New method to synthesis nano chitosan from Vannamei shrimp with high Deacetylation Degree Nano can adsorb heavy metal Fe up 81.35% Shrimp shells as an alternative adsorbents for Abstract cultivation produces wastes in several forms, including the molting process. shell waste be used a source of chitosan. Many researches have various applications, one which is pollution. This ...

The current study involves the synthesis of fourteen analogs oligochitosan and their screening for antiviral potential against human immunodeficiency virus (HIV), respiratory syncytial (RSV) Coxsackie virus. synthesized were characterized by nuclear magnetic resonance (NMR) FTIR techniques. HIV-1 p24 ELISA was performed using antigen capture assay in order to estimate viral infectivity loss. It...

Abstract New system compromising of chitosan nanoparticles encapsulated pre-synthesized selenium in the presence 5-fluorouracil was successfully prepared and used for cancer antiproliferation. Selenium were synthesized using ascorbic acid as reducing agent under mild condition. Chitosan via ionic gelation technique sodium tri-polyphosphate. Characterization carried out FTIR, TEM, XRD, TGA dynam...

Chitosan as a biobased polymer is gaining increasing attention due to its extraordinary physico-chemical characteristics and properties. While primary use of chitosan has been in horticultural agricultural applications for plant defense increase crop yield, recent research reports display various new utilizations the field advanced biomedical devices, targeted drug delivery, bioimaging sensors....

This investigation compared the adsorption behavior of humic acid (HA) on cellulose, chitosan and nano zerovalent iron/chitosan (nZVI/chitosan). Results show that nZVI/chitosan is very effective in HA from aqueous media. The feasibility using as an adsorbent for simultaneous removal nitrate media was also studied. Structural analyses samples were identified by TEM, FT-IR, EDX, XRD N2 isotherms....