Category: 10287-53-3

Kaisarly, Dalia published the artcileEffects of application method on shrinkage vectors and volumetric shrinkage of bulk-fill composites in class-II restorations, Recommanded Product: Ethyl 4-dimethylaminobenzoate, the publication is Dental Materials (2022), 38(1), 79-93, database is CAplus and MEDLINE.

Upon initial proximal wall construction, the favorable C-factor of class-II cavities may become unfavorable. This study investigated the application method on bulk-fill resin composite polymerization shrinkage. Occluso-proximal class-II cavities were prepared in 40 molars and bonded with a self-etch adhesive (Adhese Universal). The study groups varied according to the resin composite application: group-1: bulk application, Tetric EvoCeram Bulk Fill (TBF); group-2: proximal wall construction (TBF) and occlusal cavity filling (TBF); group-3: thin flowable liner layer, Tetric EvoFlow Bulk Fill (TEF) and bulk filling (TBF); group-4: flowable liner (TEF), proximal wall (TBF), occlusal cavity (TBF); and group-5: bulk application, SDR (3 mm) and capping layer (TBF, 1 mm). Each resin composite increment was scanned twice using micro-CT (uncured, cured 40 s) at a resolution of 16μm. Shrinkage vectors and volumetric polymerization shrinkage were evaluated and statistically analyzed (one-way ANOVA). SEM images were used to investigate the tooth-restoration interface. Shrinkage vectors differed significantly among the groups and were greatest in gp5-fl/SDR (47.6μm), followed by gp1-TBF (23.8μm) and least in gp5-fl/SDR+TBF (11.1μm). Volumetric shrinkage varied significantly with the use of SDR (gp5-fl/SDR: 2.6%) and TEF (gp4-fl/TEF: 2.5%) to TBF (gp4-fl/TEF+wl/TBF: 0.6%) in the incremental application. Building a proximal resin composite wall yielded smaller shrinkage vectors than the bulk application. Applying a thin flowable liner decreased the shrinkage vectors, even more when building a proximal wall. A thin flowable liner is recommended when building a proximal resin composite wall.

Dental Materials published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Recommanded Product: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Balcerak, Alicja published the artcileNovel photoinitiators based on difluoroborate complexes of squaraine dyes for radical polymerization of acrylates upon visible light, Recommanded Product: Ethyl 4-dimethylaminobenzoate, the publication is Polymer Chemistry (2022), 13(2), 220-234, database is CAplus.

The present article describes the efficiency of novel two-component photoinitiators based on a typical squaraine dye and its difluoroborate analogs for the radical polymerization of acrylate monomers. The role of photosensitizers in photoinitiating systems was played by squaraine derivatives, such as 2,4- bis (3,5-dimethylpyrrol-2-yl)squaraine (PSQ1) and 2,4- bis (4-ethyl-3,5-dimethylpyrrol-2-yl)squaraine (PSQ2) and difluoroborate complexes of these compounds, such as BPSQ1 and BPSQ2, named BODIPY dyes. These dyes absorb radiation in visible region of the spectrum, from 400 nm to 600 nm and show high molar absorption coefficients of about 10⁵ dm³ mol^-1 cm^-1. Therefore, they may be used as sensitizers, e.g. in photopolymerization experiments The synthesized dyes were combined with various co-initiators and used as visible-light photoinitiators for the radical polymerization of 2-ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate (TMPTA). The proposed systems show different photoinitiation abilities, which are related to the structure of both sensitizer and co-initiator and the concentration of applied photoinitiator. Novel derivatives of squaric acid could be the starting point for the design of new photoinitiating systems for radical and cationic polymerization based on squaraine dyes.

Polymer Chemistry published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Recommanded Product: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tomal, Wiktoria published the artcileBeneficial stilbene-based derivatives: From the synthesis of new catalytic photosensitizer to 3D printouts and fiber-reinforced composites, Synthetic Route of 10287-53-3, the publication is European Polymer Journal (2021), 110603, database is CAplus.

New meta- and para-cyanoderivatives of 1,4-di(styryl)benzene and 1,3-di(styryl)benzene were synthesized and investigated for their use as photosensitizers of iodonium salt for various photopolymerization processes. Detail spectroscopic characteristic of this compound were performed, and the mechanism of initiation in binary photoinitiating system together with iodine salt was discussed and confirmed by experiments Using real-time FTIR, the usefulness of the proposed meta- and para-cyanoderivatives of 1,4-di(styryl)benzene and 1,3-di(styryl)benzene as highly efficient photosensitizers for various photopolymerization processes was tested, including: free-radical photopolymerization of acrylate monomer or cationic photopolymerization of epoxy and glycidyl monomers. In addition, the formation of interpenetrating polymer networks with the use of proposed two-component initiating systems was performed. Encouraged by excellent polymerization results with the use of the developed initiating systems, addnl. application tests were carried out, including: 3D printing using vat polymerization, visible based direct ink writing, preparation of various fiber-reinforced composite or formation of multiwalled carbon nanotubes composites (MWCNTs nanocomposites), for which the manufacturing process has been analyzed in detail using real-time FTIR method.

European Polymer Journal published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C10H10CoF6P, Synthetic Route of 10287-53-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Alkattan, R. published the artcileBis[2-(Methacryloyloxy) Ethyl] Phosphate as a Primer for Enamel and Dentine, Recommanded Product: Ethyl 4-dimethylaminobenzoate, the publication is Journal of Dental Research (2021), 100(10), 1081-1089, database is CAplus and MEDLINE.

Dental resin composites are commonly used in the restorative management of teeth via adhesive bonding, which has evolved significantly over the past few decades. Although current self-etch bonding systems decrease the number of clin. steps, the acidic functional monomers employed exhibit a limited extent of demineralization of enamel in comparison to phosphoric acid etchants, and the resultant superficial ionic interactions are prone to hydrolysis. This study evaluates the etching of primers constituted with bis[2-(methacryloyloxy) ethyl] phosphate (BMEP) of dental hard tissue, interfacial characteristics, and inhibition of endogenous enzymes. We examine the incorporation of 2 concentrations of BMEP in the formulation of exptl. primers used with a hydrophobic adhesive to constitute a 2-step self-etching bonding system and compare to a com. 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP)-containing system. The interaction of the primer with enamel and dentin was characterized using scanning electron, confocal laser scanning, and Raman microscopy while the polymerization reaction between the BMEP primers and hydroxyapatite was evaluated by Fourier-transform IR spectroscopy. The inhibitory effect against matrix metalloproteinase (MMP) enzymes of these primers was studied and percentage of inhibition analyzed using 1-way anal. of variance and Tukey′s post hoc test (P < 0.05). Results of the SEM micrographs demonstrated potent etching of both enamel and dentin with the formation of longer resin tags with BMEP primers compared to the 10-MDP-based system. The BMEP polymerized on interaction with pure hydroxyapatite in the dark, while the 10-MDP primer exhibited the formation of salts. Furthermore, BMEP primers were able to inhibit MMP activity in a dose-dependent manner. BMEP could be used as a self-etching primer on enamel and dentin, and the high d.p. in the presence of hydroxyapatite can contribute to an increased quality of the resin polymer network, prompting resistance to gelatinolytic and collagenolytic degradation

Journal of Dental Research published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Recommanded Product: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Burgard, Niklas published the artcileThe Influence of Modified Experimental Dental Resin Composites on the Initial In Situ Biofilm-A Triple-Blinded, Randomized, Controlled Split-Mouth Trial, SDS of cas: 10287-53-3, the publication is Polymers (Basel, Switzerland) (2021), 13(16), 2814, database is CAplus and MEDLINE.

The purpose of the study was to investigate the bacterial viability of the initial biofilm on the surface of exptl. modified dental resin composites. Twenty-five healthy individuals with good oral hygiene were included in this study. In a split-mouth design, they received acrylic splints with five exptl. composite resin specimens. Four of them were modified with either a novel polymeric hollow-bead delivery system or methacrylated polymerizable Irgasan (Antibacterial B), while one specimen served as an unmodified control (ST). A delivery system based on Poly-Pore was loaded with one of the active agents: Tego Protect 5000 (Antiadhesive A), Dimethicone (Antiadhesive B), or Irgasan (Antibacterial A). All study subjects refrained from toothbrushing during the study period. Specimens were detached from the splints after 8 h and given a live/dead staining before fluorescence microscopy. A Friedman test and a post hoc Nemenyi test were applied with a significance level at p < 0.05. In summary, all materials but Antibacterial B showed a significant antibacterial effect compared to ST. The results suggested the role of the materials′ chem. in the dominance of cell adhesion. In conclusion, dental resin composites with Poly-Pore-loaded active agents showed antibacterial effectiveness in situ.

Polymers (Basel, Switzerland) published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, SDS of cas: 10287-53-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Bukhari, Jaffar Hussain published the artcileLow-temperature flow-synthesis-assisted urethane-grafted zinc oxide-based dental composites: physical, mechanical, and antibacterial responses, Recommanded Product: Ethyl 4-dimethylaminobenzoate, the publication is Journal of Materials Science: Materials in Medicine (2021), 32(8), 87, database is CAplus and MEDLINE.

A novel way was adopted to graft zinc oxide (ZnO) with urethane-modified dimethacrylate (UDMA) in order to utilize them as reinforcing agents in resin-based dental composites. Exptl. novel composites were synthesized having UDMA-grafted and nongrafted ZnO, at a concentration of 0 weight%, 5 weight%, and 10 weight%. The same concentrations of ZnO were also incorporated in Filtek Z250 XT (3 M ESPE, USA). The antibacterial behavior was evaluated against Streptococcus mutans by direct-contact test at one, three, and seven days of incubation. The compressive strength and Vickers microhardness were tested as per ISO 9917 and ISO/CD6507-1, resp. For abrasive wear resistance, mass loss and roughness average after tooth-brushing cycles of 24,000 at custom-made tooth-brushing simulator were evaluated using noncontact profilometer. Data anal. was carried out using post hoc Tucky′ s test and nonparametric Kruskal-Wallis test. Direct contact test revealed that the antibacterial potential of novel and com. composites was increased with an increase in the concentration of grafted ZnO as compared with nongrafted, whereby the potential was the highest at day seven. There was a significant decrease in compressive strength and Vickers hardness of com. composites on addition of grafted ZnO while there was no significant difference in the strength of exptl. novel composite. The abrasive wear of com. and exptl. composites was within clin. limits. Low-temperature flow-synthesis method was successfully employed to synthesize grafted and nongrafted ZnO. The UDMA-grafted ZnO can be incorporated into dental composites without decreasing their strength and these composites can be used to combat secondary caries.

Journal of Materials Science: Materials in Medicine published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Recommanded Product: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Almutairi, Basil published the artcileSynergistic effect of graphene oxide/calcium phosphate nanofiller in a dentin adhesive on its dentin bond integrity and degree of conversion. A scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared, micro-Raman , and bond strength study, Name: Ethyl 4-dimethylaminobenzoate, the publication is Microscopy Research and Technique (2021), 84(9), 2082-2094, database is CAplus and MEDLINE.

The objective was to formulate and analyze a dentin adhesive incorporated with graphene oxide (GO) nanoparticle and calcium phosphate (CaP) composite. Methods comprising of SEM (SEM)-energy dispersive X-ray spectroscopy (EDX), micro-Raman spectroscopy, shear bond strength (SBS), and Fourier transform IR (FTIR) spectroscopy were used to characterize nanoparticle composite, dentin bond toughness, degree of conversion (DC), and adhesive-dentin interaction. Postsynthesis of GO nanoparticles, they were functionalized with CaP using standard process. The GO-CaP composite was not added to exptl. adhesive (neg. control group, GO-CaP-0%), and added at 2.5 and 5 wt% to yield GO-CaP-2.5% and GO-CaP 5% groups, resp. Teeth were set to form bonded samples utilizing adhesives in three groups for SBS testing, with and without thermocycling. The homogenous diffusion of GO-CaP composite was verified in the adhesive. Resin tags having standard penetrations were observed on SEM micrographs. The EDX anal. confirmed the occurrence of calcium, phosphorus, and carbon ions in the composite containing adhesives. The SBS test revealed highest mean values for GO-CaP-5% followed by GO-CaP-2.5%. The FTIR spectra verified the presence of apatite peaks and the micro-Raman spectra showed characteristic D and G bands for GO nanoparticles. GO-CaP composite in dentin adhesive may improve its bond strength. The addition of 5 wt% resulted in a bond strength that was superior to all other groups. GO-CaP-5% group demonstrated lower DC (to control), uniform distribution of GO and CaP composite within adhesive, appropriate dentin interaction, and resin tag formation.

Microscopy Research and Technique published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Name: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Sousa-Lima, Rodolfo published the artcileMonomer conversion, release and cytotoxicity analyses of experimental GDMA-P based adhesives, Application of Ethyl 4-dimethylaminobenzoate, the publication is International Journal of Adhesion and Adhesives (2021), 102792, database is CAplus.

This study aimed to evaluate the effects of a photoinitiator system and acidic monomer (GDMA-P) concentrations on self-etch exptl. dental adhesive degree of conversion (DC), monomer release and cytotoxicity. Three monomer blends containing different GDMA-P/HEMA/UDMA ratios were produced: 1/3/3; 2/3/2; and 3/3/1. CQ + EDMAB; BAPO or CQ + BAPO + EDMAB were used as photoinitiator systems. DFI was added as co-initiator, and a water/ethanol mixture was used as solvent. DC was evaluated by Fourier transform IR spectroscopy (FTIR) (n = 10). Monomer release was identified by ultra-high performance liquid chromatog. (UHPLC) (n = 6). The Alamar Blue assay was used to test NIH-3T3 fibroblast cell viability (n = 8). A two-way ANOVA and Tukey post-hoc test were used for the data analyses (p < 0.05). Exptl. adhesives presenting higher GDMA-P concentrations displayed an overall statistically lower DC, less monomer release and increased cell viability (p < 0.05). BAPO resulted in increased DC and lower monomer release rates than CQ only (p < 0.05). Low GDMA-P concentrations associated to BAPO generated an adhesive system with improved conversion and both lower monomer release rates and cytotoxicity.

International Journal of Adhesion and Adhesives published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C5H10N2OS, Application of Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Yuan, Nan published the artcileLabel-free Fluorescence Turn on Trypsin Assay Based on Gemini Surfactant/heparin/Nile Red Supramolecular Assembly, Synthetic Route of 10287-53-3, the publication is Journal of Fluorescence (2021), 31(5), 1537-1545, database is CAplus and MEDLINE.

In this research, we designed a label-free fluorometric turn-on assay for trypsin and inhibitor screening, based on a spherical cationic gemini surfactant ethylene-bis (dodecyl di-Me ammonium bromide) (EDAB)/heparin/Nile red (NR) supramol. assembly system. The introduction of gemini surfactant EDAB as template greatly enhanced its salt resistance and resulted in the supramol. assemblies with diameters ranging from 20 to 100 nm. The fluorometric assay for trypsin was performed by firstly disassembling with protamine (a heparin-binding protein) and then re-assembling through hydrolysis of protamine. The disassembly and reassembly of the system resulted in a turn-off first and then a turn-on behavior of the corresponding fluorescence. The overall processes were characterized by fluorescence spectra, TEM measurements and zeta potential tests. The detection level of this assembly system for trypsin was as low as 4.2 ng mL-1. Also, the EDAB/heparin/NR assembly could be used to screen the trypsin inhibitors. The assembly system was easily-fabricated and cost-effective, but also exhibited good salt tolerance in NaCl solution at the concentration of 0-500 mM. At last, the supramol. assembly was successfully applied to detect trypsin in human urine, demonstrating its great potential on clin. diagnosis applications.

Journal of Fluorescence published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C17H16O2, Synthetic Route of 10287-53-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhang, Yueteng published the artcilePhotoredox Asymmetric Nucleophilic Dearomatization of Indoles with Neutral Radicals, Recommanded Product: Ethyl 4-dimethylaminobenzoate, the publication is ACS Catalysis (2021), 11(2), 998-1007, database is CAplus.

The dearomatization of indoles represents the most efficient approach for accessing highly valued indolines. The inherent nucleophilic reactivity of indoles has dictated indole dearomatization development in both 1e- and 2e- processes. However, the dearomatization of electron-deficient indoles has been challenging. Herein, authors introduce a conceptually distinct photoredox-mediated Giese-type transformation strategy, which is generally used for the conjugate addition of radicals to simple α, β-unsaturated systems, for chemoselectively breaking C=C bonds embedded in the aromatic structure. Moreover, highly diastereoselective addition of challenging neutral radicals has been achieved by Oppolzer camphorsultam chiral auxiliary. Structurally diverse amine-functionalized chiral indolines carrying distinct functional and stereochem. diversity are produced from a wide array of amines as radical precursors. Furthermore, the mild, powerful manifold is capable of the late-stage modification of complex natural products and pharmaceuticals. DFT studies are performed to elucidate the observed stereochem. outcomes.

ACS Catalysis published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C8H16O2, Recommanded Product: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics