Lignin particles for multifunctional membranes, anti-oxidative microfiltration, patterning and 3D structuring.

07:00 EST 8th November 2019 | BioPortfolio

Summary of "Lignin particles for multifunctional membranes, anti-oxidative microfiltration, patterning and 3D structuring."

We introduce a new type of particle-based membrane based on the combination of lignin colloids (LP) and cellulose nanofibrils (CNF), the latter of which are introduced in small volume fractions to act as networking and adhesive agent. The synergies that are inherent to lignin and cellulose in plants are re-engineered to render materials with low surface energy (contact angle measurements) and that can be rendered water resistant with the aid of wet-strength agents (WSA). Importantly, they are most suitable for anti-oxidative separation (ABTS●+ radical inhibition): membranes with uniform porous structures (air permeability and capillary flow porosimetry) allow effluent oxidation at 95 mL/cm2, demonstrating, for the first time, the use of unmodified lignin particles in flexible membranes for active microfiltration. Moreover, the membranes are found to be non-fouling (protein adhesion and activity rate). The inherent properties of lignin, including UV radiation blocking capacity (UV transmittance analysis) and reduced surface energy are further exploited in the development of tailorable and self-standing architectures that are almost entirely comprised of non-bonding LP (solids content as high as 92 w/w%). Despite such composition, the materials develop high toughness (oscillatory dynamic mechanical analysis), owing to the addition of minor amounts of CNF. Multifunctional materials based on thin films (casting), 3D structures (molding) and patterned geometries (extrusion deposition) are developed as a demonstration of the potential use of lignin particles as precursor of new material generation. Remarkably, our observations hold for spherical LPs since a much poorer performance was observed after using amorphous powder, indicating the role of size and shape in related applications.


Journal Details

This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252


DeepDyve research library

PubMed Articles [12761 Associated PubMed Articles listed on BioPortfolio]


Microstructuring the surface of membranes is recognized as one of the effective strategies to mitigate fouling phenomenon. Over the years, significant efforts have been undertaken to develop new techn...

Electrospun lignin-based composite nanofiber membrane as high-performance absorbent for water purification.

An alkali lignin/poly (vinyl alcohol) (lignin/PVA) composite nanofiber membrane was fabricated by electrospinning and tested as an adsorbent for efficient Safranine T (ST) adsorption. Effect of lignin...

Curcumin encapsulation in yeast glucan particles promotes its anti-inflammatory potential in vitro.

Glucan particles (GPs) from Saccharomyces cerevisiae are hollow shells that are composed mainly of β-1,3-d-glucan, which has demonstrated immunomodulatory and anti-inflammatory potential both in vitr...

Phenomenological Changes in Lignin following Polymerization and its Effects on Flocculating Clay Particles.

In present work, cationic kraft lignin (CKL) macromolecules were produced via polymerizing kraft lignin (KL) with [-2-(Acryloyloxy)ethyl] trimethyl ammonium chloride (ATAC) or [-2-(methacryloyloxy)eth...

Anti-oxidative function of follicular fluid HDL and outcomes of modified natural cycle-IVF.

High density lipoproteins (HDL) are the main cholesterol carriers in follicular fluid (FF), the natural environment of oocyte development. Additionally, HDL have critical biological functions such as ...

Clinical Trials [4792 Associated Clinical Trials listed on BioPortfolio]

A Pilot Study of Filtrum-STI in Children With Viral Gastroenteritis

This is a phase II double blind multicenter randomized placebo-controled clinical study aimed to find out whether treatment with Filtrum-STI (orally administered 0,4g tablets) is safe and ...

Multifunctional Substrate for Early Detection of Oxidative Stress Susceptibility and Application to Parkinson's Disease

The proposed work is based on the detection of a novel molecule for sensitivity to oxidative stress in humans in venous blood

Adiposity and Fat Patterning in Black Americans

To examine the relationships of obesity and fat patterning with morbidity and mortality in Black Americans.

IVIG and Rituximab in Antibody-associated Psychosis - SINAPPS2

A randomised phase II double-blinded placebo-controlled trial designed to explore the utility of immunotherapy for patients with acute psychosis associated with anti-neuronal membranes (NM...

Multifunctional Magnetic Resonance Imaging in Predicting Breast Lesions in Women Undergoing Mastectomy for Breast Cancer

RATIONALE: Diagnostic procedures, such as multifunctional magnetic resonance imaging, may help doctors learn the extent of disease and plan the best treatment. PURPOSE: This clinical tria...

Medical and Biotech [MESH] Definitions

The processes occurring in early development that direct morphogenesis. They specify the body plan ensuring that cells will proceed to differentiate, grow, and diversify in size and shape at the correct relative positions. Included are axial patterning, segmentation, compartment specification, limb position, organ boundary patterning, blood vessel patterning, etc.

The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed)

The adherence and merging of cell membranes, intracellular membranes, or artificial membranes to each other or to viruses, parasites, or interstitial particles through a variety of chemical and physical processes.

A copper-containing oxidoreductase enzyme that catalyzes the oxidation of 4-benzenediol to 4-benzosemiquinone. It also has activity towards a variety of O-quinols and P-quinols. It primarily found in FUNGI and is involved in LIGNIN degradation, pigment biosynthesis and detoxification of lignin-derived products.

The interactions of particles responsible for their scattering and transformations (decays and reactions). Because of interactions, an isolated particle may decay into other particles. Two particles passing near each other may transform, perhaps into the same particles but with changed momenta (elastic scattering) or into other particles (inelastic scattering). Interactions fall into three groups: strong, electromagnetic, and weak. (From McGraw-Hill Encyclopedia of Science & Technology, 7th ed)

Quick Search

DeepDyve research library

Searches Linking to this Article