Tag: M.W=250-300

Sangpairoj, Kant published the artcileHexadecanoic acid-enriched extract of Halymenia durvillei induces apoptotic and autophagic death of human triple-negative breast cancer cells by upregulating ER stress, Category: esters-buliding-blocks, the main research area is hexadecanoic acid Halymenia durvillei death human breast cancer cells; autophagic death human triple neg breast cancer ER stress.

To investigate the effect of the hexane solvent fraction of Halymenia durvillei (HDHE) on triple-neg. breast cancer. The phytochem. profile of HDHE was investigated by GC-MS. The cytotoxicity of HDHE against MDA-MB-231 cells was determined The apoptotic and autophagic effects of HDHE were analyzed. The expression of mol. markers controlling apoptosis, autophagy, DNA damage, and endoplasmic reticulum (ER) stress was determined HDHE contains a mixture of fatty acids, mainly hexadecanoic acid. HDHE at a cytotoxic concentration induced apoptotic death of MDA-MB-231 cells through mitochondrial membrane dysfunction, and induction of apoptosis markers, and increased the expression of proteins related to DNA damage response. HDHE also induced the expression of LC-3, a marker of autophagic cell death at a cytotoxic concentration Moreover, HDHE modulated the expression of ER stress genes. The hexadecanoic acid-enriched extract of Halymenia durvillei promotes apoptosis and autophagy of human triple-neg. breast cancer cells. This extract may be further explored as an anticancer agent for triple-neg. breast cancer.

Asian Pacific Journal of Tropical Biomedicine published new progress about Apoptosis. 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Category: esters-buliding-blocks.

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

Scheiger, Johannes M. published the artcileInherently UV Photodegradable Poly(methacrylate) Gels, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is acrylic polymer photodegradable gel.

Organogels (hydrophobic polymer gels) are soft materials based on polymeric networks swollen in organic solvents. They are hydrophobic and possess a high content of solvent and low surface adhesion, rendering them interesting in applications such as encapsulants, drug delivery, actuators, slippery surfaces (self-cleaning, anti-waxing, anti-bacterial), or for oil-water separation To design functional organogels, strategies to control their shape and surface structure are required. Herein, the inherent UV photodegradability of poly(methacrylate) organogels is reported. No addnl. photosensitizers are required to efficiently degrade organogels on the minute scale. A low UV absorbance and a high swelling ability of the solvent infusing the organogel are found to be beneficial for fast photodegradation, which is expected to be transferrable to other gel photochem. Organogel arrays, films, and structured organogel surfaces are prepared, and their extraction ability and slippery properties are examined Films of inherently photodegradable organogels on copper circuit boards serve as the first ever pos. gel photoresist. Spatially photodegraded organogel films protect or reveal copper surfaces against an etchant (FeCl3 aqueous).

Advanced Functional Materials published new progress about Actuators. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

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

Porras, Julian D. published the artcileDevelopment of an Adsorbent for Bisphenol A Based on a Polymer Grafted from Microcrystalline Cellulose, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is bisphenol polymer grafted microcrystalline cellulose adsorbent development.

We aimed to develop a sustainable adsorbent for bisphenol A (BPA), an endocrine disruptor that seriously threatens human health. First, microcrystalline cellulose (MCC) was reacted with 2-bromoisobutyrylbromide to obtain a surface initiator (SI) for the grafting of polystyrene (PS), poly(lauryl methacrylate) (PLMA), and poly(N,N-dimethylaminoethyl methacrylate) (PDM) through ARGET-ATRP. These polymers may have favorably interacted with BPA, which led to its removal. SIs were characterized by FTIR and XPS to corroborate the grafting of 2-bromoisobutyryl and determine its abundance. X-ray diffraction anal. indicated retained crystal morphol. with decreased MCC crystallinity. FTIR, thermogravimetric, and elemental analyses confirmed the grafting of MCC with polymers and revealed their composition PS and PLMA had a minor effect on the crystallinity and morphol. of MCC microfibers, whereas grafting PDM decreased the crystallinity of cellulose and the particle size. MCC grafted with polymers were tested as adsorbents of BPA by measuring the equilibrium uptake and removal through column filtration. PDM was found to endow cellulose with superior capacity of removing BPA, which was enhanced with increased amount of grafted polymer. A comparison of MCC grafted with PDM with activated carbon as adsorbents of BPA suggested the superior performance of the developed materials based on the largest maximum uptake.

Water, Air, & Soil Pollution published new progress about Acylation. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

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

Wang, Kai published the artcileUpgrading wood biorefinery: An integration strategy for sugar production and reactive lignin preparation, Related Products of esters-buliding-blocks, the main research area is wood biorefinery reactive lignin preparation sugar production.

Lignin has been extensively explored as a renewable precursor for materials fabrication. However, its low reactivity is one of the main challenges for material development. Herein, we presented a simple and effective biorefinery strategy to directly prepare reactive lignin with lower mol. weight and enhanced reactivity for the fabrication of high-strength self-healing adhesives. The role of 2-naphthol to suppress lignin condensation during the organosolv pretreatment of two woody biomasses was demonstrated by the less condensed structures and decreased mol. weights of lignin. This promoted the enzymic hydrolysis of pretreated poplar from 50.2% to 62.9% at the low enzyme loading. Furthermore, the resultant lignins showed 51.7% increase in the modification efficiency during an esterification reaction. Lignin based macro-initiator was used to initiate “”grafting from”” reversible addition-fragmentation chain transfer polymerization of furan methacrylate and lauryl methacrylate to generate copolymers with tunable properties. Then, the occurrence of reversible Diels-Alder reaction between furan rings and maleimide crosslinker enabled the formation of dynamic network as self-healing adhesive. The adhesiveness anal. revealed that the highest adhesive shear strength reached 6.3 MPa, which was significantly higher than most of previous adhesives used on wood chips. Furthermore, after 10 times self-healing, the shear strength still accomplished 39.6% of original strength. This study has presented an upgraded biorefinery strategy to tune the properties of lignin and its interesting utilization to fabricate functional materials, providing new insights into materials and biorefinery society.

Industrial Crops and Products published new progress about Adhesives. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Related Products of esters-buliding-blocks.

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

Xia, Shan published the artcileA flexible, adhesive and self-healable hydrogel-based wearable strain sensor for human motion and physiological signal monitoring, Safety of Dodecyl 2-methylacrylate, the main research area is adhesive selfhealable hydrogel wearable strain sensor motion.

The advent of hydrogel-based strain sensors has attracted immense research interest in artificial intelligence, wearable devices, and health-monitoring systems. However, the integration of the synergistic characteristics of good mech. properties, self-adhesiveness, self-healing capability and high strain sensitivity for fabricating hydrogel-based strain sensors is still a challenge. Here, a multifunctional conductive hydrogel composed of a polyacrylamide (PAAm)/chitosan (CS) hybrid network is fabricated for wearable strain sensors. The PAAm network is cross-linked by hydrophobic associations, and the CS network is ionically cross-linked by carboxyl-functionalized multi-walled carbon nanotubes (c-MWCNTs). These two networks are further interlocked by phys. entanglement and hydrogen bond interactions. The obtained hydrogels exhibit excellent flexibility, puncture resistance and self-healing capability because of the efficient energy dissipation of the dynamic crosslinking network. Moreover, the hydrogels exhibit self-adhesive behavior on various materials, including polytetrafluoroethylene, wood, glass, aluminum, rubber and skin. Notably, the hydrogels can be applied as soft human-motion sensors for real-time and accurate detection of both large-scale and small human activities, including joint motions, speaking, breathing, and even subtle blood pulsation. Therefore, it is anticipated that the flexible, self-adhesive, self-healing and conductive hydrogel-based strain sensor will have promising applications in artificial intelligence, soft robots, biomimetic prostheses, and personal health care.

Journal of Materials Chemistry B: Materials for Biology and Medicine published new progress about Adhesives. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Safety of Dodecyl 2-methylacrylate.

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

Gong, Xuanang published the artcileEthyl cellulose based self-healing adhesives synthesized via RAFT and aromatic schiff-base chemistry, COA of Formula: C16H30O2, the main research area is ethyl cellulose grafting vanillin lauryl methacrylate; Adhesives; Ethyl cellulose; Schiff base; Self-Healing; Vanillin.

In this work, reversible addition-fragmentation chain transfer (RAFT) polymerization and Schiff base chem. was combined to fabricate self-healing adhesives. An esterification reaction was first performed to prepare Et cellulose based macroinitiators. Then, a “”grafting from”” RAFT of vanillin methacrylate and lauryl methacrylate was used to obtain graft copolymers. DSC result showed that the glass transition temperature was manipulated via changing the ratio of vanillin and fatty acids moieties. NMR spectrum anal. demonstrated the presence of aldehyde groups, which were available for the dynamic crosslinking to generate a network as self-healing adhesives. The adhesive test showed that the shear strength could reach 0.81 MPa with a self-healing efficiency of 98.7%. The bottlebrush structures of copolymers and reversibility of Schiff base chem. might collaboratively contribute to the high self-healing efficiency. This study provides a facile way to fabricate high-performance self-healing adhesives from Et cellulose and renewable resources.

Carbohydrate Polymers published new progress about Adhesives. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, COA of Formula: C16H30O2.

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

Boscan, Freddy published the artcileIncorporation of Very Insoluble Monomers in Waterborne Coatings, Application In Synthesis of 142-90-5, the main research area is waterborne coating insoluble monomer.

The benefits of polymerizing very insoluble monomers in aqueous media, avoiding the use of energy-intensive procedures, by implementing two novel synthesis techniques based on the emulsifier combination in emulsion polymerization and on miniemulsification by phase inversion temperature are investigated. The performance of standalone polymers consisting of monomers, namely lauryl methacrylate, isobornyl acrylate, and 1H,1H,2H,2H-perfluorodecyl acrylate, and of formulated binders with these monomers incorporated either through blending or in situ polymerization, is evaluated with special emphasis on their water-barrier properties (e.g., uptake, whitening, immersion, and vapor resistance) and on their chem. resistance. The performance of the standalone polymers is found to be similar to that of polymers prepared by high-shear miniemulsion polymerization, while the performance of the formulated binders is generally superior to a com. coating formulation based on a binder recommended for water resistance.

Macromolecular Materials and Engineering published new progress about Adhesives. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Application In Synthesis of 142-90-5.

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

Huang, Hsiu-Ying published the artcileEco-Friendly, High-Loading Luminescent Solar Concentrators with Concurrently Enhanced Optical Density and Quantum Yields While Without Sacrificing Edge-Emission Efficiency, Name: Dodecyl 2-methylacrylate, the main research area is luminescent solar concentrator optical density quantum yield.

A luminescent solar concentrator (LSC) consists of loaded luminophores and a waveguide that can concentrate direct and diffuse sunlight, which is a crucial ingredient for developing solar glasses. In general, the loading concentration in LSCs is strongly restricted (typically <1 weight%) to mitigate concentration-induced quenching (CIQ), reabsorption losses, and aggregation-induced scattering (AIS). However, this will induce transmission losses in particular for thin-film LSCs. To address all aforementioned issues, large-Stoke-shift LSCs with different loadings are simply prepared based on thiolated gold nanoclusters (GSH-AuNCs) dispersed in the polyvinylpyrrolidone (PVP) matrix. In contrast to conventional luminophores with a severe CIQ effect, photoluminescence quantum yields (PL-QYs) can be significantly enhanced up to ≈25% (from 0.5 to 1%) even under high loading of ≈26 weight%. Such PL-QY enhancement is attributed to the synergistic effects of the suppression of non-radiative relaxation and enhancement of radiative decay processes due to surface ligand-matrix coordination. In addition, our high-loading LSCs also exhibit excellent optical quality and film uniformity without introducing noticeable AIS effects. Thanks to those unique properties, eco-friendly LSCs with high optical d. can still hold a high edge-emission efficiency of ≈70% due to minimal reabsorption and scattering losses, yielding an external quantum efficiency of ≈15% at the wavelength of 400 nm. Solar RRL published new progress about Composites. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Name: Dodecyl 2-methylacrylate.

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

Alberg, Irina published the artcileEffect of Core-Crosslinking on Protein Corona Formation on Polymeric Micelles, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is crosslinked polyhydroxypropylmethacrylamide preparation nanoparticle blood protein zeta potential; asymmetrical flow field-flow fractionation; core-crosslinking; polymer micelles; protein corona.

Most nanomaterials acquire a protein corona upon contact with biol. fluids. The magnitude of this effect is strongly dependent both on surface and structure of the nanoparticle. To define the contribution of the internal nanoparticle structure, protein corona formation of block copolymer micelles with poly(N-2-hydroxypropylmethacrylamide) (pHPMA) as hydrophilic shell, which are crosslinked-or not-in the hydrophobic core is comparatively analyzed. Both types of micelles are incubated with human blood plasma and separated by asym. flow field-flow fractionation (AF4). Their size is determined by dynamic light scattering and proteins within the micellar fraction are characterized by gel electrophoresis and quantified by liquid chromatog.-high-resolution mass spectrometry-based label-free quant. proteomics. The analyses reveal only very low amounts of plasma proteins associated with the micelles. Notably, no significant enrichment of plasma proteins is detectable for core-crosslinked micelles, while noncrosslinked micelles show a significant enrichment of plasma proteins, indicative of protein corona formation. The results indicate that preventing the reorganization of micelles (equilibrium with unimers) by core-crosslinking is crucial to reduce the interaction with plasma proteins.

Macromolecular Bioscience published new progress about Aminolysis. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

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

Kafetzi, Martha published the artcileMultifaceted pH and Temperature Induced Self-Assembly of P(DMAEMA-co-LMA)-b-POEGMA Terpolymers and Their Cationic Analogues in Aqueous Media, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is amphiphilic polymethacrylate diblock terpolymer self assembly RAFT polymerization.

This work focuses on the synthesis of novel amphiphilic block terpolymers of the type poly[(2-(N,N-dimethylamino) Et methacrylate)-co-(lauryl methacrylate)]-b-poly[(oligo ethylene glycol) Me ether methacrylate] (P(DMAEMA-co-LMA)-b-POEGMA) by reversible addition-fragmentation chain transfer polymerization The cationic amphiphilic polyelectrolyte analogs P(QDMAEMA-co-LMA)-b-POEGMA are obtained through quant. quaternization of the DMAEMA segments. Mol. characterization by size exclusion chromatog., NMR, and Fourier Transform IR spectroscopies indicates the successful synthesis of these novel series of block terpolymers. The amine forms of the block copolymers respond to pH and temperature changes in aqueous solutions by forming unimol. or multichain nanoaggregates of varying size, micropolarity, and internal structure, as indicated by light scattering and fluorescence spectroscopy techniques. At neutral and basic pH, the existence of micellar like nanoassemblies is observed in the solutions of P(DMAEMA-co-LMA)-b-POEGMA terpolymers, while aggregation into micellar-like clusters take place at temperature values above room temperature due to the presence of the hydrophobic LMA segments. Unexpectedly, the cationic polyelectrolytes P(QDMAEMA-co-LMA)-b-POEGMA counterparts show temperature responsiveness as a consequence of the amphiphilicity of the polymeric system.

Macromolecular Chemistry and Physics published new progress about Aggregates. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

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