Results 51 to 60 of about 191,594 (342)

Calcium Carbonate Enriched-Chitosan Prepared from Shrimp Shell Waste

Chemistry Proceedings, 2022
Chitosan is a natural, nontoxic, biocompatible, biodegradable, and water- insoluble polymer, obtained by deacetylation of chitin [...]
Andreea Miron, Cesar Filho, Radu Fierascu, Iulia Elena Neblea, Anita-Laura Chiriac, Andrei Sarbu, Horia Iovu, Tanta Verona Iordache   +7 more
doaj   +1 more source

Ceramic identity contributes to mechanical properties and osteoblast behavior on macroporous composite scaffolds. [PDF]

, 2012
Implants formed of metals, bioceramics, or polymers may provide an alternative to autografts for treating large bone defects. However, limitations to each material motivate the examination of composites to capitalize on the beneficial aspects of ...
Genetos, Damian C, Leach, J Kent, Morales-Hernandez, Diana G, Murphy, Kaitlin C, Working, David M   +4 more
core   +4 more sources

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

Synthesis of biodegradable polyesteramides with pendant functional groups [PDF]

, 1992
Morpholine-2,5-dione derivatives having substituents with benzyl-protected carboxylic acid, benzyloxycarbonyl-protected amine and p-methoxy-protected thiol groups, respectively, were prepared in 29-58% yield by cyclization of the corresponding N-[(2RS ...
Dijkstra, Pieter J., Feijen, Jan, Veld, Peter J.A. in 't   +2 more
core   +3 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Mechanical and Thermal Properties of Blends Based on Polyhydroxyalkanoates

Proceedings, 2020
Polyhydroxybutyrate (PHB) is a biodegradable and biocompatible thermoplastic polymer with good properties. [...]
Marius Stelian Popa, Irina Lupescu, Cristian Andi Nicolae, Augusta Raluca Gabor, Adriana Nicoleta Frone, Denis Mihaela Panaitescu   +5 more
doaj   +1 more source

Simulation of degradation reactions of Biodegradable Poly-lactic acid polymer in the human body [PDF]

مجله مدل سازی در مهندسی, 2011
Poly lactic acid polymers are, biodegradable, with long strands of polymer and strong. Achieve water to high polymers bound, causes the band brake to acids are exist in the human body. These types of polymer in are used as holding medical science instead
محمودرضا Rahimi, اسماعیل Ghasemi Kafroudi   +1 more
doaj   +1 more source

Enzymatic activity toward poly(L-lactic acid) implants [PDF]

, 1990
Tissue reactions toward biodegradable poly(L-lactic acid) implants were monitored by studying the activity pattern of seven enzymes as a function of time: alkaline phosphatase, acid phosphatase, -naphthyl acetyl esterase, -glucuronidase, ATP-ase, NADH ...
Feijen, J., Hardonk, M.J., Molenaar, I., Nieuwenhuis, P., Schakenraad, J.M.   +4 more
core   +4 more sources

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Cellulosic materials as natural fillers in starch-containing matrix-based films: a review [PDF]

, 2016
In this work, the different cellulosic materials, namely cellulose and lignin are analyzed. In addition, the starch-containing matrices (isolated starch and flour) reinforced with cellulosic materials to be used in packaging applications are described ...
Alvarez, Vera Alejandra, Gutiérrez Carmona, Tomy José   +1 more
core   +1 more source