Science topic

Biopolymers - Science topic

Polymers synthesized by living organisms. They play a role in the formation of macromolecular structures and are synthesized via the covalent linkage of biological molecules, especially AMINO ACIDS; NUCLEOTIDES; and CARBOHYDRATES.
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Publications related to Biopolymers (10,000)
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The utilization of sustainable biomaterials in pharmaceutical and medical applications has gained significant momentum in recent years due to their dual ability to address environmental concerns and meet the evolving demands of modern healthcare. As the need for greener alternatives in healthcare intensifies, this review presents a comprehensive ov...
Article
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In this study, we developed a novel hybrid biocomposite combining a biopolymer (Protein Hydrolysate) with silylated MgAl-Hydrotalcite (MgAl-HT). The resulting hybrid biocomposite was characterized by XRD, FTIR, TGA and SEM/EDX to investigate its physicochemical properties. More than, the prepared hybrid biocomposite (MgAl-HT@SiO2-NH2-PH) was evalua...
Conference Paper
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Cardanol is the renewable phenolic material that is isolated from Cashew Nut Shell liquid (CNSL). CNSL has created a lot of interest because of its special structural characteristics and adaptability. This review paper looks at the progress of cardanol metathesis, which shows a crucial chemical change that reorganizes carbon-carbon double bonds to...
Article
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Cyclodextrins (CDs) are cyclic oligosaccharides derived from starch with the ability to form inclusion complexes with guest molecules. Their unique structure allows them to be used in various applications, including drug delivery systems, flavor and fragrance encapsulation, environmental remediation, and food packaging. CDs’ capability to form stab...
Article
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Exopolysaccharides (EPSs) synthesized by thermophilic bacteria are natural biopolymers, that have recently garnered attention due to their potential applications in areas such as pharmaceuticals and biomedicine. In this study, EPSs produced by five distinct thermophilic bacterial isolates from hot springs in Turkey were purified using ion exchange...
Article
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The objective of the present work was to investigate the effect of CMC biopolymer on the physicochemical, mechanical, thermal, barrier, and biodegradation properties of PVA-based films. The polymeric films were developed using solution casting method, incorporating CMC at concentrations ranging from 0.5 to 1.5%. With the addition of CMC, the tensil...
Article
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Crosslinking amine‐rich biomolecules with aldehydes, such as paraformaldehyde (PFA) and glutaraldehyde (GA), is a widely used method for biomaterial fabrication and cell fixation. In this study, we introduce homobifunctional photocaged 2‐butene‐1,4‐dials (bis‐PBDAs) as novel amine‐reactive photo‐crosslinkers. Compared to PFA and GA, bis‐PBDAs are i...
Article
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The use of single-use plastics derived from fossil fuels has been a major cause of environmental pollution. As a solution, biopolymers based on renewable resources have emerged as an environmentally friendly alternative. This article examines the development, challenges, and implementation strategies for biopolymers in providing sustainable plastic...
Article
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Lipases are enzymes that catalyze the hydrolysis of carboxylic esters at a lipid–water interface and are able to catalyze reactions such as alcoholysis, esterification, transesterification, and enantioselective synthesis in organic media. They are important biocatalysts for biotechnological and industrial applications—such as in the food and flavor...
Article
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Repairing and regenerating articular cartilage remains a significant challenge, primarily due to its limited self‐healing capability. Hydrogel has emerged as a promising candidate due to its resemblance to extracellular matrices. A porous hydrogel of an appropriate size can facilitate cell growth and integrate into the host tissue. However, the pre...
Thesis
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Bacteria synthesize diverse polysaccharides through complex biosynthetic pathways, but many of these pathways remain poorly defined. At UW-Madison’s Hershey Lab, we isolated bacteria from Lake Mendota to identify natural exopolysaccharide (EPS) producers. Among these, the genus Rheinheimera contained multiple mucoid isolates, with Rheinheimera sp....
Article
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Bacterial cellulose (BC) is a versatile biopolymer prized for its remarkable water absorption, nanoscale fiber architecture, mechanical robustness, and biocompatibility, making it suitable for diverse applications. Despite its potential, the high cost of conventional fermentation media limits BC’s scalability and wider commercial use. This study in...
Article
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A free‐standing, flexible polysaccharide‐based natural solid polymer electrolyte composed of i‐Carrageenan doped with various concentrations of ammonium triflate is created via the solution casting approach. An investigation was conducted into the effects of ionic dopant on the structural, vibrational, thermal, dielectric, transport, and electroche...
Article
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Plant cell walls are highly dynamic, complex structures composed of multiple biopolymers that form a scaffold surrounding the plant cell. A nanoscale understanding of their architecture, mechanical properties, and formation/degradation dynamics is crucial for revealing structure–function relationships, mechanisms of shape formation, and cell develo...
Article
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Chemical fungicides have long been relied upon for controlling economically significant diseases of safflower, including Macrophomina root rot and Fusarium wilt. However, concerns regarding environmental impact and resistance development necessitate the exploration of sustainable alternatives. In this study, we investigated the efficacy of biopolym...
Article
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Biochemical innovations have significantly advanced our understanding of nutrition and environmental impact. Recent research highlights the synergistic effects of prebiotics and probiotics in enhancing gut health and overall well-being, demonstrating their potential in preventing and managing various diseases (Smith et al., 2023). Chitin derivative...
Article
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Skin disorders are the fourth most common cause of all diseases, which affect nearly one-third of the world’s population. Topical drug delivery can be effective in treating a range of skin disorders, including microbial infections, skin cancer, dermatitis, burn injury, wounds, and psoriasis. Bioadhesive nanoparticles (BNPs) can serve as an efficien...
Article
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This study presents the synthesis and characterization of an aminofunctionalized chitosan-silica nanocomposite using the polymer melt intercalation technique. Chitosan, a biopolymer with inherent biocompatibility and antimicrobial properties, was functionalized with amino groups to enhance its reactivity and potential applications. Silica nanoparti...
Article
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RESUMEN El objetivo de esta revisión es destacar los avances en el desarrollo de hidrogeles y el uso de curcumina en el tratamiento de heridas crónicas. Las heridas crónicas, como úlceras por presión, vasculares, neuropáticas y neoplásicas, representan un significativo problema de salud global, siendo entre el 1-2 % de todas las heridas que existen...
Article
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As the demand for polymer materials increases, conventional petroleum-based synthetic polymers face several significant challenges, including raw material depletion, environmental issues, and the potential for biotoxicity in biological applications. In response, bio-based polymers derived from natural sources, such as cellulose, alginate, chitosan,...
Article
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Xanthan gum (XG) is a biopolymer widely used in different industries, such as food, cosmetics, oil, among others, which requires modifications in its properties. The present study aims to study the thermal and rheological properties of XG nanofluids based on oxidized hexagonal boron nitride (hBN‐oxi) under high temperature and pressure conditions....
Article
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Additively manufactured polyolefins find broad applications in medical engineering, enabling the manufacturing of patient‐specific geometries. For investigating the influence of processing conditions of laser sintered locally macroporous polypropylene substrates, the response of myoblasts, chondrocytes, and fibroblasts has been characterized in thi...
Article
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Given the growing demand for nanoscale carbon materials, which possess adsorbent properties and are environmentally friendly, the present work introduces pectin as a new carbon source for synthesizing carbons mesostructured from Korea–3 (CMK-3) with a methodology designed according to the pectin characteristics. The paper presents a comparison betw...
Article
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Postharvest losses (PHLs) of fruits and vegetables present a significant challenge for the environment, economy, and overall food security. Conventional methods like pesticides, plastic-based petroleum packaging, and synthetic waxes have effectively extended shelf life, but they come with environmental and health concerns. Biopolymer-based edible c...
Article
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Creating polymer nanocomposite specimens is carried out using the solution casting technique. The specimens are comprised of a host matrix of polyvinyl alcohol (PVA), in which varying concentrations of zirconium oxide (ZrO 2) and copper oxide (CuO) nanoparticles are incorporated, spanning a range from 0 to 6 wt.%. The nanostructures composed of PVA...
Article
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The Generalized Langevin Equation has been successfully used to model and understand the conformational dynamics of molecules in solution. However, recent works have demonstrated that, in these kinds of applications, the usual fluctuation–dissipation relation connecting the statistics of the random force to the memory kernel could contain a cross-c...
Article
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Drug delivery systems have revolutionized traditional drug administration methods by addressing various challenges, such as enhancing drug solubility, prolonging effectiveness, minimizing adverse effects, and preserving potency. Nanotechnology-based drug delivery systems, particularly nanoparticles (NPs) and nanofibers (NFs), have emerged as promis...
Article
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Nano remediation shows great potential as an effective approach for addressing environmental restoration, specifically in the treatment of persistent pollutants such as pesticides, chlorine-based solvents, halogen-containing chemicals, and toxic heavy metals. In general, nanotechnology is revolutionizing different environmental contexts, such as th...
Article
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Las frutas frescas cortadas, valoradas por su conveniencia y nutrientes, enfrentan retos significativos, como el rápido deterioro y contaminación microbiana tras su procesamiento mínimo. Una solución prometedora a estos problemas son los envases activos que utilizan películas y recubrimientos biopoliméricos como quitosano, almidón, alginato, entre...
Article
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Infectious diseases pose considerable challenges to public health, particularly with the rise of multidrug‐resistant pathogens that globally cause high mortality rates. These pathogens can persist on surfaces and spread in public and healthcare settings. Advances have been made in developing antimicrobial materials to reduce the transmission of pat...
Article
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Polyhydroxyalkanoates (PHAs) are biodegradable, low-cost, and ecofriendly polymers produced by various bacteria in the environment. The aim of this study was to investigate the use of moderately halophilic Paracoccus onubensis strain E3 as a promising PHA-producing bacteria isolated from a hypersaline environment in Egypt. The optimum conditions fo...
Article
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Flexible electronics are seamlessly integrated into our lives, from foldable displays to smart wearables, redefining our interaction with technology. The use of metals and semiconductors in these flexible devices is limited due to their poor bendability and stretchability. Consequently, integrating conjugated polymers (CPs) into a cellulosic framew...
Article
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Chitosan remains one of the most widely used biopolymers in biomedicine due to its non-toxicity and biodegradability. It is easily chemically modified, allowing its properties to be effectively altered to improve its performance as a gene and drug carrier. The introduction of hydrophobic moieties into chitosan can significantly enhance its interact...
Article
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This study aims at elucidating the role of the polysaccharide skeleton (alginate versus chitosan) during the growth and shaping of HKUST‐1 as porous beads. Although the two biopolymers afford an open porous hydrogel network, the freeze‐drying step was crucial with water medium being inappropriate to preserve the crystalline framework of HKUST‐1. Al...
Article
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Citation: Culqui-Arce, C.; Mori-Mestanza, D.; Fernández-Jeri, A.B.; Cruzalegui, R.J.; Mori Zabarburú, R.C.; Vergara, A.J.; Cayo-Colca, I.S.; da Silva, J.G.; Araujo, N.M.P.; Castro-Alayo, E.M.; et al. Polymers Derived from Agro-Industrial Waste in the Development of Bioactive Films in Food. Polymers 2025, 17, 408. https:// Abstract: This review expl...
Poster
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The construction industry profoundly affects ecosystems through high energy consumption, resource depletion, and carbon emissions, resulting in significant environmental challenges. Innovating sustainable material solutions is essential to address these environmental challenges effectively. In this context, this research examines Sodium Alginate, a...
Article
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Multifunctional pH‐responsive gelatin/κ‐carrageenan (GC) blend films containing gromwell (Lithospermum erythrorhizon [LE]) root ethanolic extract (LE‐EE) rich in shikonin or shikonin rich extract (SRE) and carbon dots (LE carbon dots [LE‐CDs]) were prepared and characterized. The hydrothermal method was adopted for the synthesis of LE‐CDs, which di...
Article
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Biopolymeric oil‐in‐water (O/W) high internal phase Pickering emulsions (HIPPEs) due to their unique rheological behaviors of HIPPEs such as shear‐thinning property, viscoelasticity, and thixotropic recovery have emerged as highly promising printing inks in the 3D printing process. O/W biopolymer‐based HIPPEs are categorized as complex fluids, wher...
Article
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Tracking and motion analyses of semi-flexible biopolymer networks from time-lapse microscopy images are important tools that enable quantitative measurements to unravel the dynamic and mechanical properties of biopolymers in living tissues, crucial for understanding their organization and function. Biopolymer networks are challenging to track due t...
Preprint
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As the next step in extraterrestrial exploration, many engineers and scientists around the country revealed their intense interest to enable multiplanetary human life, including colonizing Mars. This study proposes that architecture on Mars can be realized by a synthetic lichen system, composed of diazotrophic cyanobacteria and filamentous fungi, w...
Article
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With advances in food technology and research, the usability and effectiveness of biopolymer blended films are evolving rapidly. Sustainable biopolymer films derived from natural sources such as chitosan, alginate, gelatin, pectin, starch, and protein have attracted great attention due to their biodegradability and environmental benefits. Recent st...
Article
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Calcium lignosulfonate as a biopolymer component was incorporated into acrylonitrile butadiene rubber in the amount—50 phr. Four low-molecular organic molecules—1,4-butanediol, ethylene glycol, and two glycerols with different purity—were used as plasticizers. They were applied in rubber compounds in the amount ranging from 5 to 30 phr. The influen...
Article
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Phenolic resin has high heat resistance and excellent mechanical properties, and its cross‐linked network structure shows excellent mechanical properties after curing. However, it is difficult to recycle the cross‐linked phenolic resin because of its insoluble and infusible features. In order to make the phenolic resin recyclable and reprocessable,...
Article
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Poly(3‐hydroxybutyrate) (P3HB) is a biobased and biodegradable polymer that is primarily produced through biotechnological fermentation processes. Its high crystallinity of around 70% and low thermal stability hinder its processing and application in different sectors. In this work, blends of isotactic poly(3‐hydroxybutyrate) (i‐P3HB) with the chem...
Article
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Nanocellulose-based adhesives are gaining attention as a viable alternative to conventional adhesives, offering benefits such as cost-effectiveness and scalability, which make them suitable for various sectors, including cosmetics, pharmaceuticals, biodegradable products, and as reinforcing agents in natural adhesives. This review delves into the c...
Article
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Background: Nanotechnology and nanomaterials are promising approaches for controlling microbial infections. The bio-based nanocomposites provided elevated potentiality against resistant microbes. Method: Nanocomposites comprised purslane “Portulaceae oleracea L.” seed mucilage (PSM), PSM-mediated silver nanoparticles (PSM/AgNPs) and nanochitosan (N...
Article
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World population growth associated with unbridled consumption have led to notable increases in the use of petroleum-based plastics. Biodegradable polymers produced from sustainable and low-cost raw materials have been emerging as a key solution. The objective of this work was to obtain a polymer of microbial origin from an alternative and renewable...
Chapter
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Smart seed coatings represent an innovative approach to enhancing agricultural productivity by integrating advanced materials and technologies into traditional seed treatment practices. These coatings, comprising hydrogels, nanomaterials, biopolymers and stimuli-responsive agents, provide targeted solutions to challenges such as inconsistent g...
Article
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The exploration of electrospun nanofibers has gained significant attention in wound healing due to their unique structural properties and potential to enhance therapeutic efficacy. This review examines the development and application of electrospun nanofibers, focusing on their antibacterial properties and biocompatibility, which are essential for...
Article
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The exploration of electrospun nanofibers has gained significant attention in wound healing due to their unique structural properties and potential to enhance therapeutic efficacy. This review examines the development and application of electrospun nanofibers, focusing on their antibacterial properties and biocompatibility, which are essential for...
Article
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Throughout their existence, plastics made from petroleum have been associated with increasing environmental problems, such as pollution, accumulation in terrestrial and marine environments, and the release of greenhouse gases. To address the present environmental concerns, creating and producing eco-friendly polymers has received much attentio...
Article
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Herein, Polyaniline (PANI)/polyethylene oxide (PEO) - luffa cylindrica bio-composite films of various mass fractions (%) have been prepared via casting solution of emeraldine base polyaniline and cellulose extracted from luffa. The biopolymer films were structurally and thermally characterized using X-ray diffraction (XRD), Fournier Transform-Infra...
Article
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Polyhydroxyalkanoates (PHA) are bioplastics produced by few bacteria as intracellular lipid inclusions under excess carbon source and nutrient-deprived conditions. These polymers are biodegradable and resemble petroleum-based plastics. The rising environmental concerns have increased the demand for PHA, but the low yield in wild-type bacterial stra...
Article
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The growing interest in developing antibacterial textiles using natural functional agents is largely driven by their sustainable and eco-friendly attributes. Lignin, a highly available biopolymer with a polyphenolic structure, has drawn attention due to its potential as a bioactive antibacterial agent. However, its inherent heterogeneity poses chal...
Article
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The oil and gas industry is shifting towards environmentally sustainable drilling practices, with a strong focus on biodegradable drilling fluid additives for friction reduction. Traditional friction-reducing agents often pose environmental hazards, necessitating the development of eco-friendly alternatives. This paper examines the latest advanceme...
Article
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Positron annihilation lifetime spectros-copy (PALS) was employed to study the water-dependent free volume characteristics of wood cell walls in earlywood and latewood of loblolly pine (Pinus taeda). Measurements were conducted across relative humidity levels (1-80% RH) at room temperature , demonstrating good reproducibility and consistency with po...
Article
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The use of biopolymers like Xanthan Gum (XG) for soil stabilization offers an eco-friendly alternative, enhancing soil properties while reducing CO2 emissions, gaining attention in sustainable engineering. This study investigated the interaction and geotech-nical improvements of clay mixed with XG and polypropylene fibers (PPF). Biopolymer was used...
Article
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Advanced carbon materials are widely utilized in wearable electronics. Nevertheless, the production of carbon materials from fossil‐based sources raised concerns regarding their non‐renewability, high energy consumption, and the consequent greenhouse gas emissions. Biopolymers, readily available in nature, offer a promising and eco‐friendly alterna...
Article
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Common adhesives for nonstructural applications are manufactured using petrochemicals and synthetic solvents. These adhesives are associated with environmental and health concerns because of their release of volatile organic compounds (VOCs). Biopolymer adhesives are an attractive alternative because of lower VOC emissions, but their strength is of...
Article
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When the variety of synthetic polymers came up in the 20th century, they expectedly replaced many fiber materials which were made so far from biopolymers since ancient times (e.g., for textiles, medical products, etc.). Meanwhile, to some extent, there is a strong revival of various fibers from biopolymers regarding their utilization for various ap...
Article
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Polysaccharides such as chitosan, alginate, cellulose, and carrageenan have emerged as promising adsorbents due to their biodegradability, abundant availability, and diverse chemical functionality. These biopolymers exhibit promising performance for adsorption of a wide range of pollutants including heavy metals (e.g., lead, cadmium), organic dyes...
Article
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The biochemical composition of sediments, which depends on the origin of the organic matter (OM), is decisive in methane (CH4) production. This study aimed to determine the CH4 produced under anaerobic conditions from different substrates: native reservoir sediments and sediments with the addition of complex OM from Microcystis spp. blooms and terr...