نتایج جستجو برای: bio based polymer

تعداد نتایج: 3048753  

2013
Suresh Alapati Woo Seong Che Yong Kweon Suh

In this study, we simulate the electrophoretic motion of a bio-polymer through a synthetic nanopore in the presence of an external bias voltage by considering the hydrodynamic interactions between the polymer and the fluid explicitly. The motion of the polymer is simulated by 3D Langevin dynamics technique by modeling the polymer as a worm-like-chain, while the hydrodynamic interactions are inc...

Journal: :Bioresource technology 2012
Walter Mulbry James B Reeves Patricia Millner

Near-infrared spectroscopy (NIRS) and mid-infrared spectroscopy (MIRS) have been used for quantitative and/or qualitative analysis of a wide range of materials. The objective of this study was to investigate the potential of MIRS and NIRS for following the degradation of bio-based food utensils during composting. Polylactide (PLA)-based forks lost 34% of their initial mass and were reduced to s...

2013
S. Vijayaraj N. Reddy Kumari

This article reviews the recent developments in Bio-Analytical sample preparation techniques and gives an update on basic principles, Applications and comparative discussion on the advantages and limitations of each technique. Conventional Solid-Phase Extraction (SPE), Molecularly Imprinted Polymer SPE techniques are have been considered as methods of past. Developments in SPE techniques such a...

2017
Astrid F. Pant Sven Sängerlaub Kajetan Müller

Oxygen scavengers are used in food packaging to protect oxygen-sensitive food products. A mixture of gallic acid (GA) and sodium carbonate was used as an oxygen scavenger (OSc) in bio-based multilayer packaging films produced in a three-step process: compounding, flat film extrusion, and lamination. We investigated the film surface color as well as oxygen absorption at different relative humidi...

Journal: :Biosensors & bioelectronics 2011
L C Wang K T Tang S W Chiu S R Yang C T Kuo

We report a fully integrated, portable, battery-operated electronic nose system comprising a bio-inspired two-layer multiple-walled carbon nanotube (MWNT)-polymer composite sensor array, a bio-inspired fast-adaptive readout circuit, and a microprocessor embedded with a pattern recognition algorithm. The two-layer MWNT-polymer composite sensor is simple to operate, and the membrane quality can b...

2013
Xiaohong Wang Heinz C. Schröder Qingling Feng Florian Draenert Werner E. G. Müller

Bone defects in human, caused by fractures/nonunions or trauma, gain increasing impact and have become a medical challenge in the present-day aging population. Frequently, those fractures require surgical intervention which ideally relies on autografts or suboptimally on allografts. Therefore, it is pressing and likewise challenging to develop bone substitution materials to heal bone defects. D...

Journal: :Journal of composites science 2023

Epoxy is the most prevalent thermosetting resin in field of polymer composite materials. There has been a growing interest development bio-based epoxy resins as sustainable alternative to conventional petrochemical resins. Advances this recent years have included use various renewable resources, such vegetable oils, lignin, and sugars, direct precursors produce In meantime, bio-oils produced vi...

Bahareh Dabirmanesh, Hossein Mahdavi, Khosro Khajeh, Marjan Heidari,

Nowadays sensors and especially biosensors play an important role in medical diagnosis and detection of food and environment contaminations. Biosensors’ facilities have been improved significantly by using technologies such as surface plasmon resonance, microfluidics, laser, and electrochemistry. These technologies are now available on chips in micro- and nano-scale and are capable of mea...

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