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1. A Bifunctional Alginate-Based Composite Hydrogel with Synergistic Pollutant Adsorption and Photocatalytic Degradation Performance

Author:
Qian, Dan; Bai, Lan; Wang, Yi-Sha; Song, Fei; Wang, Xiu-Li; Wang, Yu-Zhong
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.29 pp. 13133-13144
ISSN:
1520-5045
Subject:
alginates,   etc   ; adsorption; binding sites; catalysts; electrostatic interactions; equations; gentian violet; hydrogels; hydrogen bonding; irradiation; malachite green; methylene blue; nanoparticles; photocatalysis; photolysis; pollutants; pollution; polyacrylamide; process design; sorption isotherms; ultraviolet radiation; wastewater;     Show all 22 Subjects
Abstract:
... The growing dye pollution has become an urgent threat to environmental and biological safety. To meet the requirements of both dye adsorption and photocatalytic degradation in complicated wastewater environments, here, a novel La(OH)₃-immobilized alginate/polyacrylamide composite hydrogel (La(OH)₃@SA/PAM) is fabricated by in situ growth of La(OH)₃ on the inner walls of alginate/polyacrylamide netw ...
DOI:
10.1021/acs.iecr.9b01709

2. A biocompatible hydrogel with improved stiffness and hydrophilicity for modular tissue engineering assembly

Author:
Wei, Dan; Xiao, Wenqian; Sun, Jing; Zhong, Meiling; Guo, Likun; Fan, Hongsong; Zhang, Xingdong
Source:
Journal of materials chemistry B 2015 v.3 no.14 pp. 2753-2763
ISSN:
2050-7518
Subject:
alginates,   etc   ; bioactive properties; biocompatibility; bone formation; encapsulation; gelatin; hydrogels; hydrophilicity; microgels; permeability; surface tension; tissue engineering;     Show all 12 Subjects
Abstract:
... Surface tension driven assembly is a simple and rapid strategy in “modular” tissue engineering to fabricate three-dimensional (3D) structures with predefined geometrical and biological features. Besides the biocompatibility for encapsulated cells, the mechanical and hydrophilic properties of the microgel are the utmost two factors for assembly and structure preservation. Herein, we developed a new ...
DOI:
10.1039/c5tb00129c

3. A Bioinspired Alginate-Gum Arabic Hydrogel with Micro-/Nanoscale Structures for Controlled Drug Release in Chronic Wound Healing

Author:
Li, Mi; Li, Haichang; Li, Xiangguang; Zhu, Hua; Xu, Zihui; Liu, Lianqing; Ma, Jianjie; Zhang, Mingjun
Source:
ACS Applied Materials & Interfaces 2017 v.9 no.27 pp. 22160-22175
ISSN:
1944-8252
Subject:
sodium alginate,   etc   ; Drosera; adhesion; animal models; atomic force microscopy; bioactive properties; biocompatible materials; calcium; carnivores; cell membranes; cellular microenvironment; chemical composition; crosslinking; drugs; encapsulation; experimental design; gum arabic; hydrogels; image analysis; in vivo studies; mechanical properties; physicochemical properties; tissue repair;     Show all 23 Subjects
Abstract:
... Biopolymeric hydrogels have drawn increasing research interest in biomaterials due to their tunable physical and chemical properties for both creating bioactive cellular microenvironment and serving as sustainable therapeutic reagents. Inspired by a naturally occurring hydrogel secreted from the carnivorous Sundew plant for trapping insects, here we have developed a bioinspired hydrogel to deliver ...
DOI:
10.1021/acsami.7b04428
PubMed:
28640580
PubMed Central:
PMC5979260

4. A bio-inspired magnetic natural hydrogel containing gelatin and alginate as a drug delivery system for cancer chemotherapy

Author:
Jahanban-Esfahlan, Rana; Derakhshankhah, Hossein; Haghshenas, Babak; Massoumi, Bakhshali; Abbasian, Mojtaba; Jaymand, Mehdi
Source:
International journal of biological macromolecules 2020 v.156 pp. 438-445
ISSN:
0141-8130
Subject:
alginates,   etc   ; antineoplastic activity; cancer therapy; carboxylic acids; condensation reactions; coprecipitation; doxorubicin; drug delivery systems; drug therapy; encapsulation; gelatin; human cell lines; hydrogels; iron oxides; magnetic properties; magnetism; microstructure; nanoparticles; neoplasms; oxidation; pH; scanning electron microscopy; transmission electron microscopy;     Show all 23 Subjects
Abstract:
... This study aimed to design and development of a magnetic natural hydrogel based on alginate (Alg), gelatin (Gel), and Fe₃O₄ magnetic nanoparticles (MNPs) as an efficient and “smart” drug delivery system (DDS) for cancer therapy. First, Alg was partially oxidized (OAlg), and then the Alg-Gel chemical hydrogel was synthesized through “Shift-Base” condensation reaction. Afterward, Fe₃O₄ NPs were inco ...
DOI:
10.1016/j.ijbiomac.2020.04.074

5. A biomimetic approach to hormone resistant prostate cancer cell isolation using inactivated Sendai virus (HVJ-E)

Author:
Okada, Takaharu; Uto, Koichiro; Aoyagi, Takao; Ebara, Mitsuhiro
Source:
Biomaterials science 2015 v.4 no.1 pp. 96-103
ISSN:
2047-4849
Subject:
alginates,   etc   ; hemagglutination; Murine respirovirus; bioactive properties; cell viability; coatings; adenocarcinoma; biomimetics; atomic force microscopy; fluorescence; glass; quartz crystal microbalance; therapeutics; viruses; neoplasm cells; prostatic neoplasms; receptors; adsorption; Japan;     Show all 19 Subjects
Abstract:
... Our study reports a versatile immobilization method of Hemagglutinating Virus of Japan Envelope (HVJ-E) for the generation of viral-mimetic surfaces for hormone resistant prostate cancer cell isolation. HVJ-E has recently attracted much attention as a new type of therapeutic material because hormone resistant prostate cancer cells such as PC-3 cells possess the HVJ-E receptors, GD1a. The HVJ-E was ...
DOI:
10.1039/c5bm00375j

6. A biomimetic ion-crosslinked layered double hydroxide/alginate hybrid film

Author:
Liang, Ben-liang; Wang, Jian-feng; Shu, Ying-qi; Yin, Peng-gang; Guo, Lin
Source:
RSC advances 2017 v.7 no.52 pp. 32601-32606
ISSN:
2046-2069
Subject:
alginates,   etc   ; biomimetics; blood platelets; calcium; calcium carbonate; crosslinking; films (materials); filtration; light; mechanical properties; microstructure; nacre; wavelengths;     Show all 13 Subjects
Abstract:
... Natural nacre has an ordered layered arrangement of calcium carbonate platelets and ion-crosslinked protein, which enable it to achieve outstanding mechanical properties. Inspired by the relationship between structure and mechanical properties of natural nacre, we fabricate a Ca²⁺-crosslinked layered double hydroxide/alginate (LDH/ALG-Ca²⁺) hybrid film through filtration of Ca²⁺-crosslinked LDH/AL ...
DOI:
10.1039/c7ra04577h

7. A bistable switch in pH in urease-loaded alginate beads

Author:
Muzika, F.; Bánsági, T.; Schreiber, I.; Schreiberová, L.; Taylor, A. F.
Source:
Chemical communications 2014 v.50 no.76 pp. 11107-11109
ISSN:
1364-548X
Subject:
alginates,   etc   ; chemical compounds; chemical reactions; gels; pH;     Show all 5 Subjects
Abstract:
... A bistable switch from a low pH (unreacted “off”) state to a high pH (reacted “on”) state was obtained in enzyme-loaded gel beads in response to supra-threshold substrate concentrations. ...
DOI:
10.1039/c4cc03936j

8. A broad approach to screening of Metarhizium spp. blastospores for the control of Ixodes ricinus nymphs

Author:
Lorenz, Sissy-Christin; Humbert, Pascal; Wassermann, Marion; Mackenstedt, Ute; Patel, Anant V.
Source:
Biological control 2020 v.146 pp. 104270
ISSN:
1049-9644
Subject:
calcium alginate,   etc   ; Ixodes ricinus; Metarhizium brunneum; arthropod pests; biological control; blastospores; conidia; encapsulation; entomopathogenic fungi; fungal biomass; laboratory experimentation; mortality; nymphs; screening; tick bites; tick control; ticks; virulence; Germany;     Show all 19 Subjects
Abstract:
... As vectors of pathogens, ticks pose a considerable problem in most parts of the world. Most tick bites in Germany are caused by Ixodes ricinus for which there is no specific scientifically proven control agent available. Although biological control options like entomopathogenic fungi are known, there is a lack of studies on formulation and applicability. This study presents a broad biotechnologica ...
DOI:
10.1016/j.biocontrol.2020.104270

9. Absorption and swelling characteristics of silver (I) antimicrobial wound dressings

Author:
Parikh, Dharnidhar V; Fink, Tom; DeLucca, Anthony J; Parikh, Ashish D
Source:
Textile research journal 2011 v.81 no.5 pp. 494
ISSN:
0040-5175
Subject:
alginates,   etc   ; bandages; silver; carboxymethylcellulose; swelling (materials); water;     Show all 6 Subjects
Abstract:
... An important characteristic of moist wound dressings is their ability to swell and absorb exudates from the wound, while maintaining a moist atmosphere at the wound site. At the SRRC, we have previously developed antimicrobial silversodium-carboxymethylated (CM)-cotton printcloth from the sodium salt of CM-cotton, and silver-Ca-Na alginates from four commercially available alginate moist wound dre ...
Handle:
10113/49388
DOI:
10.1177/0040517510380778

10. A Ca-alginate particle co-immobilized with Phanerochaete chrysosporium cells and the combined cross-linked enzyme aggregates from Trametes versicolor

Author:
Li, Yanchun; Wang, Zhi; Xu, Xudong; Jin, Liqiang
Source:
Bioresource technology 2015 v.198 pp. 464-469
ISSN:
0960-8524
Subject:
calcium alginate,   etc   ; Coriolus versicolor; Phanerochaete chrysosporium; crosslinking; decolorization; dyes; effluents; environmental factors; gels; laccase; lignin; manganese; peroxidases; white-rot fungi;     Show all 14 Subjects
Abstract:
... For improving stability of immobilized white-rot fungus to treat various effluents, Phanerochaete chrysosporium cells and the combined cross-link enzyme aggregates (combi-CLEAs) prepared from Trametes versicolor were co-immobilized into the Ca-alginate gel particles in this paper. The activity yields of obtained combi-CLEAs were 42.7% for lignin peroxidases (LiPs), 31.4% for manganese peroxidases ...
DOI:
10.1016/j.biortech.2015.09.032

11. Accelerated healing of full thickness excised skin wound in rabbits using single application of alginate/acacia based nanocomposites of ZnO nanoparticles

Author:
Manuja, Anju; Raguvaran, R.; Kumar, Balvinder; Kalia, Anu; Tripathi, B.N.
Source:
International journal of biological macromolecules 2020 v.155 pp. 823-833
ISSN:
0141-8130
Subject:
alginates,   etc   ; Acacia; antimicrobial properties; antiseptics; biocompatibility; cell adhesion; chemical bonding; collagen; excision; glutaraldehyde; gum arabic; histology; microorganisms; moieties; nanocomposites; nanoparticles; ointments; polymers; rabbits; staining; synergism; tissue repair; topical application; toxicity; transmission electron microscopy; wound treatment; zinc oxide;     Show all 27 Subjects
Abstract:
... A perfect wound covering should prevent dryness of the wound and provide a favourable moist milieu at the wound interface allowing gas access but act as a barrier to the dirt and microorganisms. It is imperative to ensure early restoration of wound without scar formation at the site. Topical application of antiseptic preparation is the best for wound treatment because of its direct action. Zinc ox ...
DOI:
10.1016/j.ijbiomac.2020.03.221

12. Accelerated solar steam generation for efficient ions removal

Author:
Liu, Changkun; Cai, Chaojie; Ma, Fuqing; Zhao, Xinzhen; Ahmad, Hilal
Source:
Journal of colloid and interface science 2020 v.560 pp. 103-110
ISSN:
0021-9797
Subject:
sodium alginate,   etc   ; anions; energy efficiency; evaporation rate; graphene oxide; heavy metals; hydrogels; irradiation; nanosilver; nanowires; seawater; sewage; silver; solar energy; steam; thermal conductivity; thermal energy; water purification;     Show all 18 Subjects
Abstract:
... Solar-driven evaporation as a sustainable water purification technology exhibits great potential in solving the global water crisis. In this paper, a novel solar evaporator was successfully prepared with the reduced graphene oxide (rGO) and silver (Ag) nanowires as photothermal conversion media which were loaded into the sodium alginate (SA) hydrogel. It was found that the evaporation rate of the ...
DOI:
10.1016/j.jcis.2019.10.055

13. Acceptability of alginate enriched bread and its effect on fat digestion in humans

Author:
Houghton, David; Wilcox, Matthew D.; Brownlee, Iain A.; Chater, Peter I.; Seal, Chris J.; Pearson, Jeffrey P.
Source:
Food hydrocolloids 2019 v.93 pp. 395-401
ISSN:
0268-005X
Subject:
alginates,   etc   ; adverse effects; breads; carboxylic ester hydrolases; compliance; enzyme inhibition; food records; humans; hydrocolloids; ileum; lifestyle; lipid content; lipolysis; obesity; physical activity; questionnaires; triacylglycerols;     Show all 17 Subjects
Abstract:
... Lifestyle interventions and physical activity remain the cornerstone of obesity management, as pharmacological therapies (orlistat) are associated with gastrointestinal (GI) side effects. Combining orlistat with fibers can reduce side effects, improving compliance. Therefore, a fiber that inhibits lipase without side effects could help treat obesity.The aims of the present work were to assess whet ...
DOI:
10.1016/j.foodhyd.2019.02.027
PubMed:
32226189
PubMed Central:
PMC7086458

14. Accumulation of intra-cellular polyphosphate in Chlorella vulgaris cells is related to indole-3-acetic acid produced by Azospirillum brasilense

Author:
Meza, Beatriz; de-Bashan, Luz E.; Hernandez, Juan-Pablo; Bashan, Yoav
Source:
Research in microbiology 2015 v.166 pp. 399-407
ISSN:
0923-2508
Subject:
alginates,   etc   ; Azospirillum brasilense; Chlorella vulgaris; bacteria; indole acetic acid; microalgae; mutants; phosphates;     Show all 8 Subjects
Abstract:
... Accumulation of intra-cellular phosphate, as polyphosphate, was measured when the microalga Chlorella vulgaris was immobilized in alginate with either of two wild-type strains of the microalgae growth-promoting bacterium Azospirillum brasilense or their corresponding IAA-attenuated mutants. Wild type strains of A. brasilense induced higher amounts of intra-cellular phosphate in Chlorella than thei ...
DOI:
10.1016/j.resmic.2015.03.001

15. Acetic acid production of Vibrio halioticoli from alginate: a possible role for establishment of abalone-V. halioticoli association

Author:
Sawabe, T.; Setoguchi, N.; Inoue, S.; Tanaka, R.; Ootsubo, M.; Yoshimizu, M.; Ezura, Y.
Source:
Aquaculture 2003 v.219 no.1-4 pp. 671-679
ISSN:
0044-8486
Subject:
alginates,   etc   ; intestinal microorganisms; carbohydrate metabolism; invertebrates; fermentation; acetic acid; volatile fatty acids; biosynthesis; Haliotis diversicolor; formic acid; Haliotis discus; Vibrio halioticoli;     Show all 12 Subjects
Abstract:
... Acetic acid, which is converted from cellulose by means of the metabolism of their gut microbes, is an important oxidizable energy source and precursors of anabolism in ruminant animals and xylophagus insects. However, acetic acid production from algal polysaccharides by means of the metabolism of gut microbes of marine herbivorous invertebrates is not well studied. Abundance of Vibrio halioticoli ...

16. Achieving high antimicrobial activity: Composite alginate hydrogel beads releasing activated charcoal with an immobilized active agent

Author:
Osmokrovic, Andrea; Jancic, Ivan; Vunduk, Jovana; Petrovic, Predrag; Milenkovic, Marina; Obradovic, Bojana
Source:
Carbohydrate polymers 2018 v.196 pp. 279-288
ISSN:
0144-8617
Subject:
calcium alginate,   etc   ; Escherichia coli; Fourier transform infrared spectroscopy; Proteus mirabilis; Pseudomonas aeruginosa; absorption; activated carbon; antibacterial properties; antiseptics; desorption; energy-dispersive X-ray analysis; hydrogels; iodine; methicillin-resistant Staphylococcus aureus; models; scanning electron microscopy; sodium chloride; ultraviolet-visible spectroscopy;     Show all 18 Subjects
Abstract:
... New composites based on Ca-alginate hydrogels were produced that release activated charcoal (AC) particles with adsorbed povidone iodine (PVP-I) as a model antimicrobial substance in a physiological-like environment. Composite beads with different alginate (0.5–1.5%w/w) and AC (1–20%w/w) concentrations were analyzed by FE-SEM and characterized regarding textural parameters, swelling, and AC releas ...
DOI:
10.1016/j.carbpol.2018.05.045

17. Acid, Bile, and Heat Tolerance of Free and Microencapsulated Probiotic Bacteria

Author:
Ding, W.K.; Shah, N.P.
Source:
Journal of food science 2007 v.72 no.9 pp. M446
ISSN:
0022-1147
Subject:
alginates,   etc   ; acid tolerance; heat tolerance; strain differences; hydrochloric acid; probiotics; bile; bile salts; microencapsulation; mortality;     Show all 10 Subjects
Abstract:
... Eight strains of probiotic bacteria, including Lactobacillus rhamnosus, Bifidobacterium longum, L. salivarius, L. plantarum, L. acidophilus, L. paracasei, B. lactis type Bl-O4, and B. lactis type Bi-07, were studied for their acid, bile, and heat tolerance. Microencapsulation in alginate matrix was used to enhance survival of the bacteria in acid and bile as well as a brief exposure to heat. Free ...
DOI:
10.1111/j.1750-3841.2007.00565.x

18. Acid gel formation in (pseudo) alginates with and without G blocks produced by epimerising mannuronan with C5 epimerases

Author:
Dentini, M.; Rinaldi, G.; Barbetta, A.; Risica, D.; Skjak-Braek, G.
Source:
Carbohydrate polymers 2006 v.63 no.4 pp. 519-526
ISSN:
0144-8617
Subject:
alginates; alginate gels,   etc   ; viscoelasticity; mannans; rheology; mechanical properties; circular dichroism spectroscopy; gelation;     Show all 8 Subjects
Abstract:
... The main scope of this paper is the characterization, in terms of viscoelastic and mechanical properties, of acid gels formed from solutions of mannuronan ALG (0%G/0%GG) and its enzymatically epimerised products. The epimerised products were obtained using recombinantly produced mannuronan C5 epimerases named AlgE1 and AlgE4, which catalyse the conversion of mannuronic residues into guluronic (G) ...
DOI:
10.1016/j.carbpol.2005.10.017

19. Acidic polysaccharides isolated from marine algae inhibit the early step of viral infection

Author:
Ueno, Mikinori; Nogawa, Masato; Siddiqui, Rokeya; Watashi, Koichi; Wakita, Takaji; Kato, Nobuyuki; Ikeda, Masanori; Okimura, Takasi; Isaka, Shogo; Oda, Tatsuya; Ariumi, Yasuo
Source:
International journal of biological macromolecules 2019 v.124 pp. 282-290
ISSN:
0141-8130
Subject:
alginates,   etc   ; HIV infections; Hepatitis B virus; Hepatitis C virus; Human immunodeficiency virus 1; Primate T-lymphotropic virus 1; Vesiculovirus; algae; dose response; human cell lines; uronic acids;     Show all 11 Subjects
Abstract:
... We examined the effects of various acidic polysaccharides isolated from marine algae on the infection and replication of human immunodeficiency virus type-1 (HIV-1), hepatitis B virus (HBV), hepatitis C virus (HCV), and human T-cell leukemia virus type-1 (HTLV-1). It was found that sulfated fucan polysaccharides, ascophyllan, and two fucoidans derived from different sources significantly inhibited ...
DOI:
10.1016/j.ijbiomac.2018.11.152

20. A “classic” material for capture and detoxification of emergent contaminants for water purification: The case of tetracycline

Author:
Rizzi, Vito; Gubitosa, Jennifer; Fini, Paola; Petrella, Andrea; Romita, Roberto; Agostiano, Angela; Cosma, Pinalysa
Source:
Environmental technology & innovation 2020 v.19 pp. 100812
ISSN:
2352-1864
Subject:
alginates,   etc   ; adsorbents; adsorption; chitosan; composite materials; desorption; ecosystem services; ecosystems; environmental impact; ionic strength; microbeads; photolysis; pollutants; sustainable development; tetracycline; thermodynamics; titanium dioxide; water purification;     Show all 18 Subjects
Abstract:
... Emerging pollutants are well-known chemicals without regulatory status that produce a significant environmental impact reaching aquatic and land ecosystems with a negative effect in the provision of ecosystem services. The aim of this work is the removal of tetracycline, through adsorption processes, from water by using alginate/chitosan microbeads enriched with TiO2. Through the photodegradation ...
DOI:
10.1016/j.eti.2020.100812