Results 41 to 50 of about 6,309 (200)

Porous polymer monoliths with complementary retention mechanisms for online solid-phase extraction liquid chromatography to determine lysozyme in egg white

open access: yesAdvances in Sample Preparation, 2023
This work demonstrates the determination of lysozyme in egg-white samples after enrichment and cleanup by weak cation exchange (WCX) following separation by reversed-phase liquid chromatography (RPLC).
Fernando H. do Nascimento   +2 more
doaj   +1 more source

Synthesis and Thermal Properties of Polyurethane, Poly(butyl methacrylate), and Poly(methylmethacrylate) Multi-Component IPN’s [PDF]

open access: yesPolymer Journal, 1984
Three component interpenetrating polymer networks (IPN’s) of polyurethane (PU)–poly(n-butyl methacrylate) (PBMA)–poly(methyl methacrylate) (PMMA) were prepared by the combined synthesis of simultaneous polymerization and sequential polymerization.
Lee, Jea Heung, Kim, Sung Chul
openaire   +2 more sources

Synthesis and Plugging Performance of Poly (MMA-BA-ST) as a Plugging Agent in Oil-Based Drilling Fluid

open access: yesEnergies, 2022
Nanopolymer was developed in order to solve the problem that the micron-scale plugging agent cannot effectively plug nanopores, which leads to instability of the wellbore.
Jian Yang   +5 more
doaj   +1 more source

Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation

open access: yesAdvanced Functional Materials, EarlyView.
We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali   +7 more
wiley   +1 more source

Physicochemical properties of poly(lactic acid-co-glycolic acid) film modified via blending with poly(butyl acrylate-co-methyl methacrylate)

open access: yesPolímeros, 2013
A series of poly(lactic acid-co-glycolic acid) (PLGA)/poly(butyl acrylate-co-methyl methacrylate) (P(BA-co-MMA)) blend films with different P(BA-co-MMA) mole contents were prepared by casting the polymer blend solution in chloroform. Surface morphologies
Guoquan Zhu   +3 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

Long‐Term Hydrophilic, Anti‐Clotting, and Anti‐Fibrotic Dynamic Covalent Silicone‐Based Biomaterials

open access: yesAdvanced Healthcare Materials, EarlyView.
Dynamic covalent crosslinking of a Schiff‐base silicone elastomer with hydrazide‐functionalized polymers is demonstrated to improve the long‐term hydrophilicity as well as the anti‐fouling and anti‐clotting properties of PDMS implants. The hydrazone‐functionalized material prevents hydrophobic recovery, resists clotting, and significantly reduces ...
Norma A. Garza Flores   +12 more
wiley   +1 more source

Micelle‐crosslinked hydrogels with stretchable, self‐healing, and selectively adhesive properties: Random copolymers work as dynamic yet self‐sorting domains

open access: yesAggregate, 2023
The design of crosslinking domains is a vital factor to create functional hydrogels with controlled physical, mechanical, and adhesive properties.
Hiroaki Asai   +6 more
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

Optical oxygen sensor based on luminescence quenching for dissolved oxygen (DO) detection: Metalloporphyrin embedded in fluorinated acrylate nanospheres and their biological application

open access: yesSensors and Actuators Reports
Optical oxygen sensors based on the luminescence quenching mechanism were developed by encapsulating platinum octaethylporphyrin (PtOEP) into fluoropolymer nanospheres of Poly(methyl methacrylate-co-trifluoroethyl methacrylate) (Poly(MMA-co-TFEMA)) and ...
Honglin Zhang   +6 more
doaj   +1 more source

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