Results 11 to 20 of about 391 (172)

Stabilized Cellulase in Chitosan-Polyvinyl Alcohol Biopolymer Beads for Sustainable Enzymatic Deinking of Recycled Paper. [PDF]

ChemistryOpen
A stable and reusable biocatalyst, cellulase@Cs/PVA/Ga, is engineered by immobilizing cellulase onto glutaraldehyde‐activated chitosan (Cs) and coating it with polyvinyl alcohol. This composite system enhances enzymatic stability and efficiency for the sustainable deinking of recycled newspaper, offering a green alternative to harsh chemical treatments.
Chakeri P, Mohammadi-Nejad G, Salekdeh GH, Ariaeenejad S, Lohrasbi-Nejad A.   +4 more
europepmc   +2 more sources

Induction of more aggressive tumoral phenotypes in LNCaP and PC3 cells by serum exosomes from prostate cancer patients

International Journal of Cancer, Volume 153, Issue 10, Page 1829-1841, 15 November 2023., 2023
What's new? While exosomes have received increased attention for their potential roles in prostate cancer, the interaction between exosomes derived from the serum of prostate cancer patients and prostate cancer cells remains unexplored. In our study, serum exosomes increased the migration of PC3 cells, representative of castration‐resistant prostate ...
Raquel Huertas‐Lárez, Laura Muñoz‐Moreno, Jorge Recio‐Aldavero, Irene Dolores Román, María Isabel Arenas, Ana Blasco, Ángeles Sanchís‐Bonet, Ana M. Bajo   +7 more
wiley   +1 more source

Double‐sensor conductivity probe applied in a flotation system

The Canadian Journal of Chemical Engineering, Volume 101, Issue 11, Page 6100-6113, November 2023., 2023
Abstract This study proposed a new approach for measuring bubble size distribution, bubble mean diameter, Sauter mean bubble diameter, and gas holdup using a double‐sensor conductivity probe in an air/water two‐phase system bubble column. The results for the two‐phase system were compared and calibrated using analyses from bubble images taken by a ...
Pedro Silva Aires, Artin Afacan, Qi Liu, Vinay Prasad   +3 more
wiley   +1 more source

Synergism of enzymes in chemical pulp bleaching from an industrial point of view: A critical review

The Canadian Journal of Chemical Engineering, Volume 101, Issue 1, Page 312-321, January 2023., 2023
Abstract Enzymes are biological catalysts and are very specific, catalyzing either a single chemical reaction or a limited number of closely related reactions. For example, xylanases are enzymes that catalyze the cleavage of polymeric xylan and thereby break down this hemicellulose.
Peter Immerzeel, Juha Fiskari
wiley   +1 more source

Study of bleaching of old newsprint recycled paper: reproduction of newspaper material

Materials Research Express, 2021
With the utilization of used newspaper into the paper making industry, bleaching has been an area of concern to obtain a balance between desired brightness and the amount of treatment it requires.
Hassan Zeb, Muhammad Asif Hussain, Iftikhar Ahmed, Muhammad Sarfraz Akram, Bilal Haider, Rizwan Haider, Zaeem Bin Babar, Rana Mujahid Saleem, Abuzar Ahsan, Iqra Aziz, Muhammad Arif   +10 more
doaj   +1 more source

Xylanase‐Producing Microbes and Their Real‐World Application

International Journal of Chemical Engineering, Volume 2023, Issue 1, 2023., 2023
The present study is focused on the availability of microbial sources capable of producing xylanase, a hemicelluloses‐degrading enzyme with multiple modes of action along with specificity, and their real‐world applications. For the accumulation of suitable data, article surfing was carried out using multiple search engines viz.
Milan Phuyal, Uttam Budhathoki, Durga Bista, Shailendra Shakya, Rajan Shrestha, Ashwinee Kumar Shrestha, Fernanda Casciatori   +6 more
wiley   +1 more source

Surface Chemistry of Deinking Process: Correlation between Surface Free Energy of Ink and Deinking Agent on Office Waste Deinking.

JAPAN TAPPI JOURNAL, 2002
To develop more deinkable inks, there is a need for a better understanding of ink detachment and fragmentation during the recycling process. The aim was to gain a better understanding of the effects of printing ink formulation, deinking chemicals, deinking process and ageing on the detachment and fragmentation of printing inks. Such an understanding is
Goto, Shisei, Miyanishi, Takanori
  +7 more sources

A Study on Recycled Polymers Recovered from Multilayer Plastic Packaging Films by Solvent‐Targeted Recovery and Precipitation (STRAP)

Macromolecular Materials and Engineering, Volume 307, Issue 11, November 2022., 2022
The effect of the solvent‐targeted recovery and precipitation (STRAP) process is assessed on the recovered polymers from two different multilayer plastics composed primarily of polyethylene (PE) and poly(ethylene terephthalate) (PET) using different thermal, physical, and molecular characterization techniques.
Victor S. Cecon, Greg W. Curtzwiler, Keith L. Vorst   +2 more
wiley   +1 more source

CHEMICAL ASPECT OF DElNKING PROCESS IN WASTEPAPER

Forestist, 2005
The purpose of deinking is to remove printing inks and other substances that mighı affect the papermaking process or final properties of paper. Unsatisfactory seperations give a paper with low brightness and dirt specks.
Bahattin GÜRBOY
doaj   +1 more source

INVESTIGATION OF THE FLOTATION DEINKABILITY OF PRINTED WASTE OFFICE PAPER

Forestist, 2001
The objective of this study vvas to examine the flotation deinking of higlıquality vvaste office (photocopy) paper printed using a Ricoh Priport Duplicating Machine based on screen printing system.
Sami İMAMOĞLU
doaj   +1 more source