Chitosan is used in medicine, pharmaceuticals, cosmetics, agriculture, water treatment, and food due to its superior biocompatibility biodegradability. Nevertheless, the complex relatively expensive extraction costs hamper exploitation and, implicitly, recycling of marine waste, most abundant source chitosan. In spirit developing environmental-friendly cost-effective procedures, present study describes one method worth consideration deliver calcium-carbonate-enriched chitosan from shrimp...

In recent years, there has been a challenging interest in developing low-cost biopolymeric materials for wastewater treatment. the present work, new adsorbents, based on different types of chitosan (commercial, commercial chitin-derived and synthesized from shrimp shell waste) inorganic-organic composites have evaluated copper ions removal. The efficacy synthesis chitosan-based composite beads determined by studying various characteristics using several techniques, including FTIR...

In the context of global issues concerning pathogen contamination surface and ground waters, this pioneering study describes fabrication screen-printed carbon electrodes modified with polymers molecularly imprinted lipopolysaccharide in an attempt to detect endotoxins derived from specific Gram-negative bacteria. The biosensors detected lipopolysaccharides Pseudomonas Aeruginosa high specificity, relative control sensors, while response same endotoxin Escherichia coli was quite different.

The present work aims to study the influence of ammonium-quaternary monomers and chitosan, obtained from different sources, upon effect semi-interpenetrating polymer network (semi-IPN) hydrogels removal waterborne pathogens bacteria wastewater. To this end, was focused on using vinyl benzyl trimethylammonium chloride (VBTAC), a water-soluble monomer with known antibacterial properties, mineral-enriched chitosan extracted shrimp shells, prepare semi-IPNs. By which still contains native...

Water pollution is becoming a great concern at the global level due to highly polluted effluents, which are charged year by with increasing amounts of organic residues, dyes, pharmaceuticals and heavy metals. For some these pollutants, industrial treatment wastewater still relevant. Yet, in cases, such as pharmaceuticals, specific schemes urgently required. Therefore, present study describes synthesis evaluation promising cryostructured composite adsorbents based on chitosan containing...

Ephedrine is an illicit drug, classified as precursor for methamphetamine, which also used stimulant, appetite suppressant, decongestant or asthma. In this study, novel molecularly imprinted polymer (MIP) films were prepared by sol-gel derived techniques, using N-(2-aminoethyl)-3-aminopropyltrimethoxysilane functional monomer, to recognize ephedrine from aqueous solutions. The obtained air-spraying the solutions, with various concentrations of monomer and template, on glass supports....

Abstract In the present study, synthesis of titanium nitride (TiN) by carbothermal reduction nitridation (CRN) reaction using nanocomposites made mesoporous TiO 2 /acrylonitrile with different content inorganic phase were explored. The choice hybrid nanocomposite as precursor for TiN was due to possibility having an intimate interface between organic and phases in mixture that can favours CRN reaction. Subsequently, composites have been subjected four-step thermal treatments at 290 °C, 550...

first_page Download PDF settings Order Article Reprints Font Type: Arial Georgia Verdana Size: Aa Line Spacing:  Column Width:  Background: Open AccessAbstract Composite Materials Based on Chitosan for Slow Release of Nitrogen–Phosphorus–Potassium Fertilizers in Agriculture † by Marinela-Victoria DumitruMarinela-Victoria Dumitru Scilit Preprints.org Google Scholar View Publications 1,2,*, Alin Cristian Nicolae VintilaAlin Vintila 1, Horia IovuHoria Iovu 2, Ana-Lorena Neagu...

We face significant environmental pollution problems due to various industries, such as the aluminum industry, which generates large amounts of red mud (RM) waste, or agriculture, in case use pesticides creates huge water problems. In this context, present study offers a better perspective originally solve both issues. Thus, main target referred using RM waste filler for preparing composite copolymer beads. Thereafter, can achieve removal pollutants their adsorption/oxidation...

This present study describes the investigation of new promising hybrid cryogels able to retain high amounts antibiotics, specifically penicillin G, using chitosan or chitosan–biocellulose blends along with a naturally occurring clay, i.e., kaolin. In order evaluate and optimize stability cryogels, three types were used in this study, as follows: (i) commercial chitosan; (ii) prepared laboratory from chitin; (iii) shrimp shells. Biocellulose kaolin, previously functionalized an organosilane,...

The study depicts the synthesis and potential application of composite materials based on natural polymers (such as chitosan, alginate) with incorporated inorganic substance in their matrix (zeolites, TiO2, CNT) to adsorb heavy metals ions from contaminated aqueous sources.

This work presents the efficiency of interpenetrated chitosan-based hydrogels (IPNs) in treatment WW a laboratory micro-pilot device which allowed both use larger volume compounds and an improved stirring samples throughout test period.

In the context of global COVID-19 pandemic caused by highly transmissible SARS-CoV-2 virus, molecularly imprinted polymers (MIPs) have emerged as a cutting-edge solution for specific recognition Spike S1 protein, crucial element in virus's cellular entry. This determined challenges rapid virus detection, mutation monitoring, and vaccine distribution. MIPs, with their binding sites, offer unique approach to selectively capture detect providing basic start diagnostics or targeted therapeutics....

In recent years, chitosan has gained a lot of interest, especially when it comes to medical uses (wound healing, excipients for drug administration), due its great biocompatibility and low toxicity [...]

first_page Download PDF settings Order Article Reprints Font Type: Arial Georgia Verdana Size: Aa Line Spacing:  Column Width:  Background: Open AccessAbstract Efficient Copper Removal from Simulated Wastewater Using Alginate-Based Polymeric Beads † by Andreea MironAndreea Miron Scilit Preprints.org Google Scholar View Publications 1,2,*, Sorin DolanaSorin Dolana 1, Ana-Mihaela GavrilaAna-Mihaela Gavrila Anamaria ZahariaAnamaria Zaharia Teodor SanduTeodor Sandu Andrei SarbuAndrei Sarbu...

Heavy metals are considered toxic pollutants as they not biodegradable and tend to accumulate in living organisms, causing various adverse effects such cancer, neurological disorders, damage the kidneys, liver, other organs [...]

first_page settings Order Article Reprints Font Type: Arial Georgia Verdana Size: Aa Line Spacing:  Column Width:  Background: Open AccessAbstract Calcium Carbonate Enriched-Chitosan Prepared from Shrimp Shell Waste † by Andreea Miron 1,2,*, Cesar Filho 3, Radu Fierascu 1, Iulia Elena Neblea Anita-Laura Chiriac Andrei Sarbu Horia Iovu 2 and Tanta Verona Iordache 1,* 1 National Institute for Research Development in Chemistry Petrochemistry-ICECHIM, Splaiul Independentei 202, District 6,...