Category: 3290-92-4

Pupin, Rafael Rovatti; Foguel, Marcos Vinicius; Goncalves, Luis Moreira; Sotomayor, Maria del Pilar T. published the artcile< Magnetic molecularly imprinted polymers obtained by photopolymerization for selective recognition of penicillin G>, Related Products of 3290-92-4, the main research area is magnetic molecularly imprinted polymer photopolymerization penicillin G.

Some of the most important life-saving medications are �lactam antibiotics (such as Penicillin G). However, these medicines have not adequately been discharged into the environment; penicillin residues offer health risks and enhance the development of resistances. Thus, its selective separation from complex matrixes is a challenge worth tackling. A novel strategy of synthesis, by photopolymerization, was applied to develop magnetic mol. imprinted polymers (mag-MIPs) aiming the recognition of penicillin G (also known as benzylpenicillin). Photopolymerization, when compared with the more common thermopolymn., has the advantage of occurring at lower temperatures, which prevents analyte degradation The Mag-MIP presented higher surface area than the conventional MIP and good adsorption capacity of the analyte while maintaining its selectivity. The synthesized material was characterized by x-ray diffraction, showing that the magnetite nanoparticles were formed and the MIP polymerization on their surface was performed, once the material was amorphous. Furthermore, the pore formation was evaluated by BET, indicating a high surface area (832 m2 g-1) and large pore volume (0.80 cm3 g-1) in the mag-MIP compared to the magnetic nonimprinted polymer (mag-NIP: 147 m2 g-1 and 0.33 cm3 g-1).

Journal of Applied Polymer Science published new progress about Magnetic nanoparticles. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Related Products of 3290-92-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ceglowski, Michal; Kurczewska, Joanna; Ruszkowski, Piotr; Schroeder, Grzegorz published the artcile< Application of paclitaxel-imprinted microparticles obtained using two different cross-linkers for prolonged drug delivery>, Category: esters-buliding-blocks, the main research area is paclitaxel imprinted microparticle crosslinker prolonged drug delivery.

Molecularly imprinted polymers (MIPs) are artificial materials processed to have cavities in the polymer structure which are capable of forming selective interactions with their mol. templates. Here, we report the synthesis of paclitaxel-imprinted microparticles and their application in prolonged drug delivery. Methacrylic acid was used as a functional monomer and 2-hydroxyethyl methacrylate was added to increase hydrophilicity of the obtained MIPs and therefore to improve compatibility with water solutions The effect of two different cross-linkers, ethylene glycol dimethacrylate and trimethylolpropane trimethacrylate, on the final properties of obtained MIPs microspheres was examined The influence of initial paclitaxel concentration as well as its contact time with MIPs microparticles on adsorption process was investigated. The release kinetics of paclitaxel from drug-loaded MIPs was found to be significantly depend upon the type of cross-linker used as well as the pH of the release medium. The highest cumulative release was observed at pH 7.4 for MIPs obtained using trimethylolpropane trimethacrylate as a cross-linker, reaching 85% in 50 h. The MIPs obtained using this cross-linker were characterized by IC50 comparable to the ones measured for pure paclitaxel. These results clearly indicate that the obtained MIPs microparticles have a large potential for prolonged drug delivery.

European Polymer Journal published new progress about Adsorption. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Huang, Xiaofeng; Liu, Wu; Wang, Wei; Lu, Yao; Dong, Jie; Li, Yueqiao; Wei, Dong; Qiao, Bo; Zhao, Suling; Xu, Zheng; Song, Dandan published the artcile< Improved phase purity and film quality in quasi-2D perovskite light-emitting diodes by an additive with the trimethacrylate group>, Application In Synthesis of 3290-92-4, the main research area is phase purity film quasi perovskite light emitting diode trimethacrylate.

Quasi-2D perovskites are potential materials for optoelectronics like light-emitting diodes (LEDs); compared to their 3D counterparts, they are considered more stable against the atm. and more efficient in exciton confining. However, the simultaneous formation of different phases in the quasi-2D perovskite film, i.e., the phase impurity issue, lowers the device performance. We propose using a small mol. additive, trimethylolpropane trimethacrylate (TMPTA), to suppress the phase impurity by mixing it into the antisolvent. The phase pure quasi-2D perovskite film was obtained, and meanwhile, the film quality was also improved. Moreover, the ester functional groups in TMPTA also passivate the charged defects in the perovskite film, minimizing the carrier recombination in the device. Correspondingly, with TMPTA modification, the maximum current efficiency is increased by 25%, and the half lifetime of the PeLEDs is prolonged by three times.

RSC Advances published new progress about Antisolvents. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Application In Synthesis of 3290-92-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Mamman, S.; Suah, F. B. M.; Raaov, M.; Mehamod, F. S.; Asman, S.; Zain, N. N. M. published the artcile< Removal of bisphenol A from aqueous media using a highly selective adsorbent of hybridization cyclodextrin with magnetic molecularly imprinted polymer>, SDS of cas: 3290-92-4, the main research area is magnetic molecularly imprinted polymer bisphenol adsorption structural thermodynamical property; adsorption; bisphenol A; molecularly imprinted polymer; water samples; å°?cyclodextrin.

In this study, a unique magnetic molecularly imprinted polymer (MMIP) adsorbent towards bisphenol A (BPA) as a template mol. was developed by bulk polymerization using å°?cyclodextrin (å°?CD) as a co-monomer with methacrylic acid (MAA) to form MMIP MAA-å°¾CD as a new adsorbent. å°?CD was hybridized with MAA to obtain water-compactible imprinting sites for the effective removal of BPA from aqueous samples. Benzoyl peroxide and trimethylolpropane trimethacrylate were used as the initiator and cross-linker, resp. The adsorbents were characterized by Fourier transform IR spectroscopy, scanning electronic microscopy, transmission electron microscopy, vibrating sample magnetometer, Brunauer-Emmett-Teller and X-ray diffraction. 1H NMR spectroscopy was used to characterize the MAA-å°¾CD and BPA-MAA-å°¾CD complex. Several parameters influencing the adsorption efficiency of BPA such as adsorbent dosage, pH of sample solution, contact time, initial concentrations and temperature as well as selectivity and reusability study have been evaluated. MMIP MAA-å°¾CD showed significantly higher removal efficiency and selective binding capacity towards BPA compared to MMIP MAA owing to its unique morphol. with the presence of å°?CD. The kinetics data can be well described by the pseudo second-order kinetic and Freundlich isotherm and Halsey models best fitted the isotherm data. The thermodn. studies indicated that the adsorption reaction was a spontaneous and exothermic process. Therefore, MMIP based on the hybrid monomer of MAA-å°¾CD shows good potential of a new monomer in molecularly imprinted polymer preparation and can be used as an effective adsorbent for the removal of BPA from aqueous solutions

Royal Society Open Science published new progress about Adsorbents. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, SDS of cas: 3290-92-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Pupin, Rafael Rovatti; Foguel, Marcos Vinicius; Goncalves, Luis Moreira; Sotomayor, Maria del Pilar T. published the artcile< Magnetic molecularly imprinted polymers obtained by photopolymerization for selective recognition of penicillin G>, Related Products of 3290-92-4, the main research area is magnetic molecularly imprinted polymer photopolymerization penicillin G.

Some of the most important life-saving medications are å°?lactam antibiotics (such as Penicillin G). However, these medicines have not adequately been discharged into the environment; penicillin residues offer health risks and enhance the development of resistances. Thus, its selective separation from complex matrixes is a challenge worth tackling. A novel strategy of synthesis, by photopolymerization, was applied to develop magnetic mol. imprinted polymers (mag-MIPs) aiming the recognition of penicillin G (also known as benzylpenicillin). Photopolymerization, when compared with the more common thermopolymn., has the advantage of occurring at lower temperatures, which prevents analyte degradation The Mag-MIP presented higher surface area than the conventional MIP and good adsorption capacity of the analyte while maintaining its selectivity. The synthesized material was characterized by x-ray diffraction, showing that the magnetite nanoparticles were formed and the MIP polymerization on their surface was performed, once the material was amorphous. Furthermore, the pore formation was evaluated by BET, indicating a high surface area (832 m2 g-1) and large pore volume (0.80 cm3 g-1) in the mag-MIP compared to the magnetic nonimprinted polymer (mag-NIP: 147 m2 g-1 and 0.33 cm3 g-1).

Journal of Applied Polymer Science published new progress about Magnetic nanoparticles. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Related Products of 3290-92-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ceglowski, Michal; Kurczewska, Joanna; Ruszkowski, Piotr; Schroeder, Grzegorz published the artcile< Application of paclitaxel-imprinted microparticles obtained using two different cross-linkers for prolonged drug delivery>, Category: esters-buliding-blocks, the main research area is paclitaxel imprinted microparticle crosslinker prolonged drug delivery.

Molecularly imprinted polymers (MIPs) are artificial materials processed to have cavities in the polymer structure which are capable of forming selective interactions with their mol. templates. Here, we report the synthesis of paclitaxel-imprinted microparticles and their application in prolonged drug delivery. Methacrylic acid was used as a functional monomer and 2-hydroxyethyl methacrylate was added to increase hydrophilicity of the obtained MIPs and therefore to improve compatibility with water solutions The effect of two different cross-linkers, ethylene glycol dimethacrylate and trimethylolpropane trimethacrylate, on the final properties of obtained MIPs microspheres was examined The influence of initial paclitaxel concentration as well as its contact time with MIPs microparticles on adsorption process was investigated. The release kinetics of paclitaxel from drug-loaded MIPs was found to be significantly depend upon the type of cross-linker used as well as the pH of the release medium. The highest cumulative release was observed at pH 7.4 for MIPs obtained using trimethylolpropane trimethacrylate as a cross-linker, reaching 85% in 50 h. The MIPs obtained using this cross-linker were characterized by IC50 comparable to the ones measured for pure paclitaxel. These results clearly indicate that the obtained MIPs microparticles have a large potential for prolonged drug delivery.

European Polymer Journal published new progress about Adsorption. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Huang, Xiaofeng; Liu, Wu; Wang, Wei; Lu, Yao; Dong, Jie; Li, Yueqiao; Wei, Dong; Qiao, Bo; Zhao, Suling; Xu, Zheng; Song, Dandan published the artcile< Improved phase purity and film quality in quasi-2D perovskite light-emitting diodes by an additive with the trimethacrylate group>, Application In Synthesis of 3290-92-4, the main research area is phase purity film quasi perovskite light emitting diode trimethacrylate.

Quasi-2D perovskites are potential materials for optoelectronics like light-emitting diodes (LEDs); compared to their 3D counterparts, they are considered more stable against the atm. and more efficient in exciton confining. However, the simultaneous formation of different phases in the quasi-2D perovskite film, i.e., the phase impurity issue, lowers the device performance. We propose using a small mol. additive, trimethylolpropane trimethacrylate (TMPTA), to suppress the phase impurity by mixing it into the antisolvent. The phase pure quasi-2D perovskite film was obtained, and meanwhile, the film quality was also improved. Moreover, the ester functional groups in TMPTA also passivate the charged defects in the perovskite film, minimizing the carrier recombination in the device. Correspondingly, with TMPTA modification, the maximum current efficiency is increased by 25%, and the half lifetime of the PeLEDs is prolonged by three times.

RSC Advances published new progress about Antisolvents. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Application In Synthesis of 3290-92-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Okesanjo, Omotola; Meredith, J. Carson; Behrens, Sven H. published the artcile< Structure-Property Relationship in Capillary Foams>, Formula: C18H26O6, the main research area is structure property relationship capillary foam.

The recently discovered capillary foams are aqueous foams stabilized by the synergistic action of colloidal particles and a small amount of oil. Characteristically, their gas bubbles are coated by a particle-stabilized layer of oil and embedded in a gel network of oil-bridged particles. This unique foam architecture offers opportunities for engineering new foam-related materials and processes, but the necessary understanding of its structure-property relations is still in its infancy. Here, we study the effects of particle wettability, particle volume fraction, and oil-to-particle ratio on the structure and selected properties of capillary foams and use our findings to relate measured foamability, foam stability, and rheol. key parameters to the observed foam microstructure. We see that particle wettability not only determines the type of gel network formed but also influences the prevalence of oil droplets included within the foam. Our results further show that the stability and rheol. of capillary foams are mainly a function of the particle volume fraction whereas the foamability and observed microstructure are sensitive also to the oil-to-particle ratio. These insights expand our fundamental understanding of capillary foams and will greatly facilitate future work on new foam formulations.

Langmuir published new progress about Capillary tubes. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Formula: C18H26O6.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Manaila, Elena; Airinei, Anton; Stelescu, Maria Daniela; Sonmez, Maria; Alexandrescu, Laurentia; Craciun, Gabriela; Pamfil, Daniela; Fifere, Nicusor; Varganici, Cristian-Dragos; Doroftei, Florica; Bele, Adrian published the artcile< Radiation processing and characterization of some ethylene-propylene-diene terpolymer/butyl (halobutyl) rubber/nanosilica composites>, Name: 2-Ethyl-2-((methacryloyloxy)methyl)propane-1,3-diyl bis(2-methylacrylate), the main research area is radiation EPDM terpolymer butyl halobutyl rubber nanosilica composite; EPDM; contact angle; crosslinking; electron beam irradiation; mechanical properties; nanosilica; water uptake.

Composites based on ethylene-propylene-diene terpolymer (EPDM), butyl/halobutyl rubber and nanosilica were prepared by melt mixing and subjected to different doses of electron beam irradiation The effect of irradiation dose on the mech. properties, morphol., glass transition temperature, thermal stability and water uptake was investigated. The efficiency of the crosslinking by electron beam irradiation was analyzed by Charlesby-Pinner parameter evaluation and crosslink d. measurements. The SEM data showed a good dispersion of nanosilica in the rubber matrix. An improvement in hardness and 100% modulus was revealed by increasing irradiation dose up to 150 kGy. The interaction between polymer matrix and nanosilica was analyzed using the Kraus equation. Addnl., these results indicated that the mech. properties, surface characteristics, and water uptake were dependent on crosslink characteristics.

Polymers (Basel, Switzerland) published new progress about Absorption. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Name: 2-Ethyl-2-((methacryloyloxy)methyl)propane-1,3-diyl bis(2-methylacrylate).

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Fauziah, St.; Soekamto, N. H.; Budi, P.; Taba, P. published the artcile< Adsorption capacity and selectivity of molecularly imprinted polymers towards β-sitosterol>, Reference of 3290-92-4, the main research area is molecularly imprinted polymer beta sitosterol adsorption solid phase extraction.

Molecularly imprinted polymers (MIP) as an adsorbent has been synthesized using β-sitosterol as mol. template on free radical polymerization reaction. The capacity and selectivity of the adsorption from MIP to β-sitosterol was studied in this study. The β-sitosterol concentration in the adsorption-desorption test and the MIP selectivity test were analyzed by UV-visible and HPLC. The MIP obtained from the synthesis results in a high adsorption capacity. Based on the Freundlich adsorption isothermal equation, the adsorption capacity (k) was found to be 1.24 mg/g. The MIP can adsorb 100% β-sitosterol while cholesterol was only 3%. The MIP is most selective to β-sitosterol, therefore, has high potential to apply as adsorbent at solid phase extraction method to isolate β-sitosterol from sample extract

Asian Journal of Chemistry published new progress about Adsorbents. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Reference of 3290-92-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics