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    2010-1-1 · Polyacrylamide hydrogel (PAAG) has been used as an injectable filler for soft tissue augmentation for more than a decade. In recent years, PAAG has been advocated as a safe soft tissue filler for facial augmentation. However, the complications associated with PAAG injection in facial augmentation have not been widely covered in the literature.

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    2021-6-2 · Polyacrylamide nonionic water-soluble polymer | Sigma-Aldrich. Polyacrylamide is used in the preparation of acrylamide gels for separation of proteins. Packaging 10, 50 g in glass bottle Biochem/physiol Actions Polyacrylamide is a water-soluble polymer made up of acrylamide subunits.

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    2019-5-29 · Polyacrylamide hydrogel (PAAG) is a combination of a minor backbone of 2.5–5% cross-linked polyacrylamide and 95–97.5% apyrogenous water. It has been available for clinical use for more than 40 years for its so-called high biocompatibility, nontoxicity, nonabsorption, and hardness resembling the body's own tissue after injection, and was ...

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    2014-8-13 · Immediately after the operation, 2.5 mL polyacrylamide hydrogel (Noltrex, Bioform, Moscow, Russia) was injected with standard approach to the knees in order to diminish the cartilage damage. After injection, in first 24 hours, classical inflammatory responses, tumor, dolor, rubor, calor, and functio laesa, were observed in the right knee.

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    2017-2-28 · Polyacrylamide hydrogel summary Objective: Polyacrylamide hydrogel (PAAG) is a non-toxic, non-degradable synthetic product, used for years in the augmentation of soft tissues. Preliminary results in animals and humans have suggested long-lasting beneficial effects on symptoms of osteoarthritis (OA). The aim of this histopathological study

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    2018-6-1 · In case of polyacrylamide hydrogel, the thermogram (Fig. 5 a) shows four main decomposition zones, 30–90 °C, 90–220 °C, 220–310 °C and 310–800 °C attributed to water evaporation, decomposition of the amide, carboxylate side groups and the polymer backbone, respectively (Singh and Mahto, 2016b). However, the thermogram of NFA-PAAm ...

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    INTRODUCTION: This study was carried out to evaluate the efficacy of periurethral injection of polyacrylamide hydrogel (PAHG, Bulkamid(®), Ethicon) for the treatment of female stress urinary incontinence (SUI). METHODS: Single-center prospective study: periurethral injection of Bulkamid(®) was performed in 80 patients with severe urinary ...

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    AbstractPolyacrylamide hydrogel (PAAG) has been widely used for injection augmentation mammaplasty in Russia, China, and Iran for more than 2 decades. In recent years, it has been advocated as a safe permanent filler for soft-tissue augmentation. However, the complications associated with PAAG injection in soft-tissue augmentation have not been extensively investigated.

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    A transparent, biocompatible, non-resorbable, homogenous hydrogel containing 97.5% apyrogenic water and 2.5% of the cross-linked, synthetic polyacrylamide. Upon injection into the urethral submucosal tissue, the polyacrylamide hydrogel serves as a bulk forming agent and may possibly increase the strength of the urethral sphincter and thereby prevent or decrease stress-induced urinary incontinence.

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    2018-9-7 · High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and …

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    2018-12-20 · 1. Abstract. Objective: To assess the safety intra-articular (IA) polyacrylamide gel (PAAG) treatment for knee OA symptoms. Methods: A case series of patients was studied, who had been treated with intra-articular injection of 2.5 % polyacrylamide hydrogel between March 2010 and February 2017. Safety assessments were performed at follow-up and included patient-reported adverse events (AEs ...

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  • Safety of Intra Articular Polyacrylamide Hydrogel-for

    2019-9-30 · Previous investigations have found that alkaline hydrolysis of a polyacrylamide hydrogel stochastically (and therefore uniformly) introduces ionic residues into the gel network by converting nonionic primary amide side chains to carboxylates with counterions, which would increase π ion. 32, 33 Coincidentally, this “hydrogel conversion ...

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  • Scalable and Isotropic Expansion of Tissues with

    2020-3-26 · Other common hydrogel materials, such as polyethylene glycol and polyacrylamide, are non-adhesive and must be modified chemically with adhesive ligands to facilitate cell infiltration. 49 However, for other applications discussed in this paper, such as marking tumor margins (e.g., TraceIT), rapid biodegradability is a design limitation, and ...

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    2014-6-30 · rylamide hydrogel injections can induce complications. Methods: The authors retrospectively reviewed all cases where patients injected with polyacrylamide hydrogel for cosmetic purposes between 2004 and 2007 at other clinics suffered complications that led them to come to the authors' facility. The authors retrieved the patient histories, the duration between injection and presentation in ...

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    2012-7-23 · V-2-1 Nonionic flocculants 20 V-2-2 Anionic flocculants 21 V-2-3 Cationic flocculants 21 V-3 Amphoteric copolymers 22 V-4 Other polymers 22 V-5 Products in solution 23 V-6 Branched polymers 23 V-7 Thickening agents 23 3. VI PHYSICAL FORMS OF POLYMERS 24 …

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    Manufacturer PHPA polyacrylamide as drilling mud additives. Manufacturer PHPA polyacrylamide as drilling mud additives Main Production: 1.Oilfield Chemicals, Oilfield chemical is a general germ,The oilfield chemicals we can supply include anionic polyacrylamide used for oil drilling mud additives,drag reduction agent and EOR(enhanced oil recovery)agent .

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    2021-3-12 · The study deals with the synthesis and characterization of the hydrophobically modified polyacrylamide (HMPA) copolymer and its functional property evaluation in mixed polymer-gemini surfactant systems for application in enhanced oil recovery (EOR). The copolymer was initially prepared in the laboratory using acrylamide and N-phenylacrylamide monomer units via an addition …

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    The injection of cross-linked polymer gels to block high permeability zones and divert subsequent water/surfactant flooding to low permeability streaks to improve hydrocarbon production efficiency is commonly known as profile modification. Moreover, in a reservoir condition with high temperature, pH, and salinity, these cross-linked polymeric gels are unstable, leading to early syneresis.

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    2019-4-30 · FTIR analysis. Figure 2 shows the ATR-FTIR spectra of composite hydrogels with different compositions and those of their original counterparts. The PPy spectrum shows a broadband located from 3600 to 3000 cm −1, attributed to stretching mode of N–H vibration.The overlapping band of C=O, C–C and C–N stretching vibrations was detected between 1700 and 1480 cm −1.

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  • Polyacrylamide Handbook - SNF

    2019-12-31 · polyacrylamide emulsions and powders Handling of emulsions using pumps is simpler than powders and in many cases, in-line injection can be used, avoiding the need for an aging tank. Furthermore, dissolution times are much shorter and there are almost no solubility problems. Unlike powders, emulsions are complex multicomponent products which include

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    Arthramid® Vet is a biocompatible, non-absorbable, non-pyrogenic, neuro-innocuous injectable polyacrylamide hydrogel for intra-articular injection in animals. Arthramid® Vet consists of approximately 2.5% cross- linked polyacrylamide and 97.5% water for injection. The hydrogel is supplied in a sterile pre-filled 1 mL syringe sealed with a ...

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    2021-6-19 · Polyacrylamide Emulsions Handbook - SNF. Polyacrylamide emulsions are dispersions or suspensions of a hydrogel of water soluble polymer in an oil. They are two phases heterogeneous systems and comprise several compo- nents. They are not concentrated polymer solutions. The hydrated polymer is in the shape of microbeads of 1 micron average diameter.

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  • An international multi-centre prospective study on the ...

    2015-4-15 · Polyacrylamide hydrogel (PAAG) was evaluated recently to treat osteoarthritis (OA) in horses with highly encouraging results; however no long term field-study was done to explore its clinical efficacy and lasting effect. The objective of this study was to evaluate the efficacy of PAAG in improving clinical signs of OA in horses. We hypothesized that lameness grade would significantly improve ...

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    Manufacturer PHPA polyacrylamide as drilling mud additives. Manufacturer PHPA polyacrylamide as drilling mud additives Main Production: 1.Oilfield Chemicals, Oilfield chemical is a general germ,The oilfield chemicals we can supply include anionic polyacrylamide used for oil drilling mud additives,drag reduction agent and EOR(enhanced oil recovery)agent .

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  • Influences of Fracture Aperture on the Water-Shutoff ...

    2019-12-12 · In previous study, we have discussed the gelation performance of the polyethyleneimine (PEI) cross-linking partially hydrolyzed polyacrylamide (HPAM) gel system. The major goals of this paper are to investigate the conventional application performance of the PEI cross-linking HPAM gel system, including injectivity and sealing charactersic through core flowing experiments. Results show that ...

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  • Plant Nanomaterials and Inspiration from Nature:

    The strength of wood hydrogels (over 10 4 kPa) is at least two orders of magnitude higher than that of a polyacrylamide hydrogel (below 10 2 kPa). This arises from the multiscale and hierarchical structure of native wood that includes bundles of nanofibrils aligned in …

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    Polyacrylamide nonionic water-soluble polymer Sigma. Polyacrylamide is used in the preparation of acrylamide gels for separation of proteins. Packaging 10, 50 g in glass bottle Biochem/physiol Actions Polyacrylamide is a water-soluble polymer made up of acrylamide subunits.

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    Polyacrylamide Uses. It can be used according to the features on the oil fields (stratum, mineralization and the viscosity of the polymer solution filled). 6. Others Anionic polyacrylamide polymers for agriculture use PAM Polyacrylamide use for soil Polyacrylamide in textile auxiling agents Cationic polyacrylamide applied in sugar making industry

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  • Contact us | Bulkamid

    Published March 2017. 13.Freitas et al. Tension free vaginal tape vs polyacrylamide hydrogel injection for primary stress urinary incontinence: a randomised controlled trial. J Urol. Vol 203, 372 – 378, 2020.

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  • A Review of Injectable Polymeric Hydrogel Systems

    Dai and coworkers synthesized a novel sodium alginate–polyacrylamide divalent ion crosslinking hydrogel (Cu 2+, Zn 2+, Sr 2+, and Ca 2+) and compared in vitro and in vivo for mechanical performance, antibacterial properties, swelling rate, and biocompatibility. 184 The swelling rate of the hydrogels significantly increased at different times ...

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    Advances in hydrogel design have revolutionized the way biomaterials are applied to address biomedical needs. Hydrogels were introduced in medicine over 50 years ago and have evolved from static, bioinert materials to dynamic, bioactive microenvironments, which can be used to direct specific biological responses such as cellular ingrowth in wound healing or on-demand delivery of therapeutics.

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    Polyacrylamide - an overview. Polyacrylamide (PAM)-based hydrogel has many applications in the biomedical fields, drug delivery, and biosensor fluids in recent years (Tsou et al., 2016). Contact lense is the most important field that PAM has been used due to its bioinert and hydrophilic properties ( Darnell et al., 2013; Fernández et al., 2005 ).

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    2016-11-21 · The most widely used polyacrylamide is PNIPAAm, with significant properties in response to the physiological environment, forming a hydrogel at 32 °C, being able to deliver a variety of bioactive molecules as an injectable delivery system .

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  • Global Hydrogel Market | Market Litmus

    2021-6-9 · Global Hydrogel Market Polyurethane injection (urethane injection) is used for water stopping in mineshafts and subway tunnels, stopping leaks in poured concrete foundation walls and structures and repairing basement leaks and is one of the most common types and the most versatile of injections.

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    2017-10-18 · Example 4 presents data for suspension tests performed using FloPRO coated 20/40 sand and combinations of high molecular weight anionic polyacrylamide (e.g., POLYglide A-FRE-4) and a nonionic or amphoteric polyacrylamide (e.g., N-5141, N-5142, N-5144, NFRD, FloJET, or ZFRD). The results are shown in Table 4.

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    2016-10-18 · To increase the resistance to rupture (that is, the toughness), one can modulate the cross-link density 93 or use interpenetrating networks to form hydrogels. 94 For example, an alginate–polyacrylamide interpenetrating network hydrogel achieved extremely high toughness 95,96, and mechanically resembled soft tissues such as cartilage and ...

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    Published March 2017. 13.Freitas et al. Tension free vaginal tape vs polyacrylamide hydrogel injection for primary stress urinary incontinence: a randomised controlled trial. J Urol. Vol 203, 372 – 378, 2020.

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    2019-3-18 · Tough Supramolecular Hydrogel Based on Strong Hydrophobic Interactions in a Multiblock Segmented Copolymer

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    The present disclosure relates to fracturing fluids that use friction reducers. The composition of the present disclosure is a slurry comprising a water-soluble polymer suspended in an oil-based vehicle with the aid of a suspension agent and a surfactant. Specifically, the water-soluble polymer is polyacrylamide and the oil-based vehicle is petroleum distillate.

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    Furthermore, the formation of stable three-dimensional structure (chemical hydrogel) by means of transamidation reactions (covalent bonding between the crosslinker and acrylamide-based polymer chains) depended on the initial nucleophilic attack of the amine nitrogen of the PEI on the carbonyl carbon of the amide groups of the polyacrylamide [8,9].

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    Polyacrylamide - an overview. Polyacrylamide (PAM)-based hydrogel has many applications in the biomedical fields, drug delivery, and biosensor fluids in recent years (Tsou et al., 2016). Contact lense is the most important field that PAM has been used due to its bioinert and hydrophilic properties ( Darnell et al., 2013; Fernández et al., 2005 ).

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    2020-12-17 · The for a nonionic hydrogel is represented by the following equation 5: (5) Here, is the molecular weight of the polymer chains prepared under identical conditions, ̅υ is the specific volume of the polymer, v 1 is the molar volume of water, υ 2, r is the volume fraction of the polymer in the relaxed state, and χ 1 is the polymer-solvent ...

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    Polyacrylamide Cosmetics Info. Polyacrylamide is a polymer of acrylamide monomers. In cosmetics and personal care products, Polyacrylamide is used in the formulation of may product types including skin cleansers, moisturizers, lotions and creams, self tanning products, makeup, and …

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    2014-10-8 · (Polyacrylamide, polyacrylates, starch based polymers) Moisture Mizer PLANT HEALTH CARE, INC. Plant Health Care Inc (polyacrylamide-acrylate copolymer) Terra-Sorb Hydrogel PRS Materials Inc (super absorbent hydrogel) HydroMate Western Nutrients Cor p (nonionic compound) Penmax ... Injection Conklin Co Inc Agronomics (NPK macronutrients) Feast N ...

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    Polyacrylamide Emulsions Handbook 1 Introduction Oil Stabilizers Inverters Polymer Hydrogel Anionic. 2 Polyacrylamide Emulsions Handbook Storage and handling 4. Storage and handling of There are also problems in the case of water contamination or if the components of the pump have not .

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    Polyacrylamide, 50 Percent Aqueous Solution, also called poly (1-carbamoylethylene), is a polymer formed from acrylamide subunits used to flocculate solids in a liquid. Spectrum solutions utilize the highest quality raw materials appropri. Pricing & More Info.

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    2020-6-25 · Among modern drug formulations, stimuli-responsive hydrogels also called “smart hydrogels” deserve a special attention. The basic feature of this system is the ability to change their mechanical properties, swelling ability, hydrophilicity, bioactive molecules permeability, etc., influenced by various stimuli, such as temperature, pH, electromagnetic radiation, magnetic field and ...

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    2016-10-18 · Hydrogel delivery systems can leverage therapeutically beneficial outcomes of drug delivery and have found clinical use. Hydrogels can provide spatial and temporal control over the release of ...

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    The method of claim 1, wherein the hydrogel particles comprise agarose, dextran, cellulose, chitin, starch, polyvinylpyrrolidone or polyvinyl alcohol. 6. The method of claim 1, wherein the active agent is present in the powdered pharmaceutical composition in an amount ranging from …

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    2019-9-15 · Christensen LH, Breiting VB, Asted A, et al. Long term effects of polyacrylamide hydrogel on human breast tissue. Plast Reconstr Surg 2003; 111:1883 –1890 [Google Scholar] 3. de Cássia Novaes W, Berg A. Experiences with a new nonbiodegradable hydrogel (Aquamid): a pilot study.

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    2020-10-6 · polyacrylamide hydrogel. At 1 year a satisfaction score of 80 or greater on a vi-sual analogue scale of 0 to 100 was reached in 95.0% and 59.8% of patients treated with tension-free vaginal tape and polyacrylamide hydrogel, respec-tively. Thus, polyacrylamide hydrogel did not meet the noninferiority criteria set in our study.

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    2014-10-8 · (Polyacrylamide, polyacrylates, starch based polymers) Moisture Mizer PLANT HEALTH CARE, INC. Plant Health Care Inc (polyacrylamide-acrylate copolymer) Terra-Sorb Hydrogel PRS Materials Inc (super absorbent hydrogel) HydroMate Western Nutrients Cor p (nonionic compound) Penmax ... Injection Conklin Co Inc Agronomics (NPK macronutrients) Feast N ...

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    2021-5-12 · AUA 2019: TVT vs. Polyacrylamide Hydrogel Injection for Primary SUI - A Randomized Trial. Chicago, IL (UroToday.com) This podium session showcased a collection of studies primarily focused on the comparative outcomes for stress urinary incontinence (SUI) treatments. Although urethral slings still remain the most commonly used and studied ...

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    2014-2-18 · acrylamide hydrogel. Polyacrylamide hydrogel (Bulkamid®) was introduced in Europe as a bulking agent in 2006 (3): it is a polymer gel consisting of 2.5% cross-linked polyacrylamide and 97.3% water for injection (4). It seems to have the necessary characteristics required of a bulking agent and appears to be effective and

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    2016-10-18 · Hydrogel delivery systems can leverage therapeutically beneficial outcomes of drug delivery and have found clinical use. Hydrogels can provide spatial and temporal control over the release of ...

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