Inhibition of Calcium Oxalate Crystallization by Graft Copolymers

Kırboğa, Semra; Öner, Mualla

doi:10.1021/cg800802z

Cited by 28 publications

(16 citation statements)

References 74 publications

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“…Furthermore, several new bands appeared at 24.4, 30.0, 35.6, and 38.2° between 5 and 40 days. According to the XRD standard comparison card, the bands belonged to the structure of calcium oxalate (CaC 2 O 4 ), which corresponded to the results in previous studies [51]. Additionally, the results from some researchers also showed that there was a close relationship between the fungi and calcium oxalates [52][53][54].…”

Section: Methods Of Compressive Strength Parallel To the Grainsupporting

confidence: 78%

Physical and mechanical properties of rubberwood (Hevea brasiliensis) dyed with Lasiodiplodia theobromae

Zhao

Zhang

et al. 2019

J Wood Sci

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Blue staining on rubberwood (Hevea brasiliensis) is a common kind of defect. There currently exists much research focused on the prevention and control of blue staining. However, little research has been concentrated on the utilization of blue staining for green dyeing. The research conveyed in this paper primarily used Lasiodiplodia theobromae to dye rubberwood, and used scanning electron microscope (SEM), energy-dispersive spectrometer (EDS), X-ray diffraction (XRD), and fourier transform infrared spectrometer (FTIR) to analyze the commission internationale eclairage (CIE) L*a*b* value of color, the contact angle, the pH value, 24-h water absorption, mass loss ratio, and compressive strength in increments between 5 and 40 days. The results found that the color of rubberwood became darker and more uniform, and that the surface dyed with fungi can reach a super-hydrophobic state. With the increase of time, the pH value of rubberwood changed from acidic to alkaline. Furthermore, hyphae entered the wood mainly through vessels for their large pore diameter, and reduced water absorption. Mass loss ratio increased gradually between 5 and 40 days. The research in this paper concludes that the microorganism was an effective method of wood dyeing, and lays a foundation for further research. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Section: Methods Of Compressive Strength Parallel To the Grainsupporting

confidence: 78%

Physical and mechanical properties of rubberwood (Hevea brasiliensis) dyed with Lasiodiplodia theobromae

Zhao

Zhang

et al. 2019

J Wood Sci

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“…In Figure 6, it is possible to observe diffraction peaks that are attributable to both COD as COM crystals. However, more intense peaks, detected at 2θ, such as 15 • , 25 • , 30 • and 31 • , correspond to crystal planes {1 0 1}, {2 1 1}, {2 0 2} and {0 2 0} of COM crystals respectively, which confirm what is observed by the above analysis [43,[71][72][73][74]. In general, the use of this kind of functionalized DSPF film as a solid organic template could contribute to understanding the mechanisms underlying the formation of biologically important minerals, such as pathological urinary crystal forms, and it is kinetic on surface deposition.…”

Section: Resultssupporting

confidence: 84%

Effect of Diazotated Sulphonated Polystyrene Films on the Calcium Oxalate Crystallization

et al. 2017

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Pathological crystallization of calcium oxalate (CaOx) inside the urinary tract is called calculi or kidney stone (Urolithiasis). CaOx exhibits three crystalline types in nature: CaOx monohydrate COM, dihydrate COD and trihydrate COT. COD and COM are often found in urinary calculi, particularly COM. Langmuir monolayers, membrane vesicles, phospholipids' micelles, among others, have been adopted as simplified biomimetic template-models to study in vitro the urolithiasis through CaOx. The nucleation and crystal growth of COM on self-assembled lipid monolayers have revealed that the negatively charged phosphatidylserine interface is a strong promoter of COM. Herein, we describe the synthesis and physicochemical characterization of diazotated sulphonated polystyrene films (DSPFs), prepared from various aminocompounds varying their polarity degree i.e., polar, non-polar and acidic DSPF derivatives. We also used these DSPFs as polymeric templates in crystallization experiments of CaOx in vitro. Images obtained by optical microscopy and scanning electron microscopy confirmed the precipitation of COM crystals on the DSPF surface. The employment of functionalized polymeric films as templates for CaOx crystallization represents a viable approach for understanding inorganic mineralization.

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“…[11,38] There is a precipitation-dissolution equilibrium in water between the inorganic salts precipitation and the ions dissociated from precipitation. PASP/ASA holds a large number of À COOH, À SO 3 H and À CONHÀ , which can easily form a stable chelate [35] with cations in the water. Therefore, when PASP/ASA is added to a certain dosage in the solution, PASP/ASA can chelate with Ca 2 + to enhance the solubility of calcium scale in water and break the precipitation-dissolution equilibrium of calcium scale salts, effectively reducing the precipitation.…”

Section: Mechanism Of Scale Inhibitionmentioning

confidence: 99%

Calcium Scale Inhibition of Stimulated Oilfield Produced Water Using Polyaspartic Acid/Aminomethanesulfonic Acid

et al. 2021

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Polyaspartic acid modified by sulfonic acid group (PASP/ASA) was synthesized and characterized, and then its comprehensive scale inhibition performance was tested in the laboratory simulated environment as an oilfield scale inhibitor. By statically experiment the performance of polyaspartic acid/ aminomethanesulfonic acid in inhibiting CaSO 4 and CaCO 3 scale under different synthesis condition, results present that the maximum scale inhibition efficiency of the prepared PASP/ ASA for CaSO 4 and CaCO 3 scale is 100 % and 83.36 % at the dosage of 2.5 mg L À 1 and 10 mg L À 1 , respectively. However, the average scale inhibition efficiency of PASP/ASA can reach 61.63 % which is higher than 51.21 % of PASP at both dosage of 30 mg L À 1 . PASP/ASA and unmodified PASP exhibit unequal calcium scale inhibition performance because of the introduction of À SO 3 H. The scale crystal morphology analyzed by SEM and X-ray diffraction revealed that the calcium scale crystals were eliminated in the presence of PASP/ASA by chelation, electrostatic dispersion and lattice distortion mechanism.

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Inhibition of Calcium Oxalate Crystallization by Graft Copolymers

Cited by 28 publications

References 74 publications

Physical and mechanical properties of rubberwood (Hevea brasiliensis) dyed with Lasiodiplodia theobromae

Physical and mechanical properties of rubberwood (Hevea brasiliensis) dyed with Lasiodiplodia theobromae

Effect of Diazotated Sulphonated Polystyrene Films on the Calcium Oxalate Crystallization

Calcium Scale Inhibition of Stimulated Oilfield Produced Water Using Polyaspartic Acid/Aminomethanesulfonic Acid

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