Emulsion Polymerization with a Biosurfactant

Kurozuka, Aya; Onishi, Shohei; Nagano, Tadayoshi; Yamaguchi, Katsumi; Suzuki, Toyoko; Minami, Hideto

doi:10.1021/acs.langmuir.7b00851

Cited by 26 publications

(10 citation statements)

References 19 publications

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“…Hydrophobic monomers are composite in an aqueous phase, which is trailed by polymerization in a direct process and oil-in-water emulsions ( Jenjob et al, 2018 ). Surfactants with electrostatic and steric stabilization are commonly used to secure colloidal systems to prevent coagulation throughout chemical reactions ( Kurozuka et al, 2017 ). Submicron polymer particles are produced via emulsion polymerization, with size ranges from 50 to 500 nm ( Thickett and Gilbert, 2007 ).…”

Section: Synthesis and Characteristics Of Nanoparticlesmentioning

confidence: 99%

Role of Nanotechnology and Their Perspectives in the Treatment of Kidney Diseases

Merlin

2022

Front. Genet.

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Nanoparticles (NPs) are differing in particle size, charge, shape, and compatibility of targeting ligands, which are linked to improved pharmacologic characteristics, targetability, and bioavailability. Researchers are now tasked with developing a solution for enhanced renal treatment that is free of side effects and delivers the medicine to the active spot. A growing number of nano-based medication delivery devices are being used to treat renal disorders. Kidney disease management and treatment are currently causing a substantial global burden. Renal problems are multistep processes involving the accumulation of a wide range of molecular and genetic alterations that have been related to a variety of kidney diseases. Renal filtration is a key channel for drug elimination in the kidney, as well as a burgeoning topic of nanomedicine. Although the use of nanotechnology in the treatment of renal illnesses is still in its early phases, it offers a lot of potentials. In this review, we summarized the properties of the kidney and characteristics of drug delivery systems, which affect a drug’s ability should focus on the kidney and highlight the possibilities, problems, and opportunities.

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Section: Synthesis and Characteristics Of Nanoparticlesmentioning

confidence: 99%

Role of Nanotechnology and Their Perspectives in the Treatment of Kidney Diseases

Merlin

2022

Front. Genet.

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“…Among them, emulsion polymerization is the major heterogeneous polymerization process. In a direct process, that is, in oil‐in‐water emulsions, hydrophobic monomers are emulsified in an aqueous continuous phase, followed by polymerization . Surfactants, providing electrostatic, steric, or electrosteric stabilization, are typically required to stabilize the colloidal system and avoid coagulation during polymerization .…”

Section: Techniques To Produce Pharmacological Nanoparticlesmentioning

confidence: 99%

Emulsion Techniques for the Production of Pharmacological Nanoparticles

Jenjob

Phakkeeree

Seidi

et al. 2019

Macromolecular Bioscience

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Nanoparticles have the advantages over micron‐sized particles to typically provide higher intracellular uptake and drug bioavailability. Emulsion techniques are commonly used methods for producing nanoparticles aiming at high encapsulation efficiency, high stability, and low toxicity. Here, the recent developments of nanoparticles prepared from emulsions, the synthesis of nanoparticles, their physicochemical properties, and their biomedical applications are discussed. Selection of techniques, such as emulsion polymerization, miniemulsion polymerization, microemulsion polymerization, and emulsion‐solvent evaporation processes, strongly influences morphologies, size distributions, and particle properties. Details in the synthetic strategies governing the performance of nanoparticles in bioimaging, biosensing, and drug delivery are presented. Benefits and limitations of molecular imaging techniques are also discussed.

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“…Figure 1a illustrates the fabrication process of the isotropic PMMA-based lens. The polymerization of PMMA microspheres and nucleation of spheres were triggered via a micellar mechanism with the molecular chains dispersing in the isotropic spheres synchronously, 29 and isotropic PMMA microspheres can be prepared. The assembling of the isotropic PMMA microsphere-based PC consists of two steps: the first step was prepressing microspheres to arrange preliminarily at room temperature, the second step was loading pressure onto the microspheres to compress them as a compact structure under heating condition, and the detailed fabrication process and thermocompression conditions are described in the Experimental Section.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Birefringence- and Optical Distortion-Free Isotropic Polymer Lens Assisted by Photonic Microspheres

Chen

Wang

et al. 2020

ACS Appl. Mater. Interfaces

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Development of low-cost and light polymer optical devices to substitute for inorganic materials is a major trend. Traditional molten processing methods are direct and have been extensively applied in optical product manufacturing. However, the inevitable intrinsic birefringence and optical distortion due to polymer molecular chain anisotropy limit their application in high-end optical devices. Here, we report a novel thermocompression strategy for isotropic polymer lens fabrication, in which a cross-linked photonic crystal (PC) consisting of closely stacked polymer microspheres is used as a precursor and then heated and pressed under the rubbery state. A polymethyl methacrylate microsphere-based PC is used as a demonstration, and the obtained isotropic lenses exhibit superior performance compared to the traditional counterpart, which are birefringence-free (Δn < 1 × 10 −5 ) and optical distortion-free and have excellent mechanical properties (hardness reaches 0.28 GPa), and the hidden mechanism is carefully studied. These properties enable the isotropic lens to be applied in precision optical components such as the lens of spectacles, microscope, telescope and endoscope, industrial camera, and astronaut helmet, and the proposed general method can extend to various polymers and provide new opportunities for the development of three-dimensional PCs.

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Emulsion Polymerization with a Biosurfactant

Cited by 26 publications

References 19 publications

Role of Nanotechnology and Their Perspectives in the Treatment of Kidney Diseases

Role of Nanotechnology and Their Perspectives in the Treatment of Kidney Diseases

Emulsion Techniques for the Production of Pharmacological Nanoparticles

Birefringence- and Optical Distortion-Free Isotropic Polymer Lens Assisted by Photonic Microspheres

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