Sacrificial sulphonated polystyrene template-assisted synthesis of mesoporous hollow core-shell silica nanoparticles for drug-delivery application

Doddamani, Deepika; PonnanEttiyappan, JagadeeshBabu

doi:10.1007/s12034-020-02209-0

Cited by 2 publications

(2 citation statements)

References 47 publications

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“…Thermal stability of SPS, IPNS of SPSN and PUS was done at heating rate of 20 0 C / min. Figures (11)(12)(13) show TGA and differential thermogravimetric (DTG) of these polymers respectively. According to the obtained results as shown in tables (2,3 ) ,the degradation process of SPS and SPSN starts at temperature higher than 400 0 C ,while for PUS was higher than 350 0 C ,on the other hand the optimum decomposition temperature (Top) of the SPS was 424 0 C ,while for the SPSN the TGA thermogram show two stage of decomposition , the first with Top at 420 0 C which refer to degrade of SPS ,while the other at Top at 543 0 C refer to novolac resin .In the case of PUS , the TGA thermogram indicate three stages of decomposition at Top 235 , 366 and 648 0 C respectively .As a conclusion the rate of decomposition and the Temperature of 50% weight loss of SPS was less than SPSN and PUS which indicate that the thermal stability of the latter two polymers was higher than SPS alone.…”

Section: Tga Studymentioning

confidence: 99%

“…Ways, for instance, styrene and styrene dimer, trimer and oligomer were recovered from PS by thermochemical treatment [9], and by catalytic thermo-chemical treatment [10]. Functionalizing of the benzene ring which is a characteristic segment of the PS supports the formation of new polymer derivatives [11] .Many researches used sulphonated group in order to the sulphonated ion reaction of PS, and most of these studies have used sulphuric acid as sulphonating agent [12,13] while other studies have used silica sulphuric acid [14] ,and the others used acetyl sulfate complexes as sulfonation reagent in a solution of di choro ethane [15].The sulfonation of polystyrene with sulfonic acid groups has been effective with various nitrogen-containing polymers (like, polyamides, conducting polymers: polyaniline). SPS has been growing in various industrial, domestic and medical applications.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and properties of Sulphonated Polystyrene, Their New Composites and IPNs

Hanoosh

2021

basjs

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Sulfonated polystyrene (SPS) is a polyelectrolyte solid that is widely used in many applications. In this study, the sulfonation reaction of food packages polystyrene (PS) waste was done using sulfuric acid as a sulfonation agent, with the variation of concentration and times. The degree of sulphonation was determined. Composite from SPS and two types of fillers (carbon black and Nano silica) were synthesized, and new IPNs between SPS and phenolic resin type novolac was prepared. The characterization of the sulfonated product and its IPNs have covered functional groups' analysis using FTIR spectrophotometers. On the other hand, tensile and modulus of the SPS composites were determined, and the results showed that the tensile strength and modulus was increase with increasing filler content ( 0.48 Map for SPS alone to 1.051 Map when the percentage of Nano silica 7% ) while the modulus was increase from 0.527 Map for SPS alone to 1.272 Map when the percentage of Nano silica 7% , The same results obtained in the case of carbon black as filler .Water absorption of the prepared thin films for SPS was more than PS alone due to the effect of the presence of polar sulphonic group in their polymer chains . Thermal behavior of SPS and their IPNs also studied and evaluated using TGA and DSC techniques; the results show that the decomposition temperature was more than 300 oC

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Section: Tga Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of Sulphonated Polystyrene, Their New Composites and IPNs

Hanoosh

2021

basjs

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Review on electrospray nanoparticles for drug delivery: Exploring applications

Patel,

Haemmerich

2024

Polymers for Advanced Techs

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Electrospraying has emerged as a versatile technique in the pharmaceutical field due to its potential in drug delivery and formulation. With its advantages of cost‐effectiveness, reproducibility, ease of operation, and scalability, electrospraying offers numerous benefits for pharmaceutical applications. Notably, the production of nanoparticles using electrospraying provides unique properties, including small size, drug encapsulation capabilities, biocompatibility, and scalability. Electrospray nanoparticles have demonstrated significant promise in various drug delivery routes, such as oral and topical administration. These nanoparticles enhance drug stability, protection, and permeability, effectively overcoming limitations associated with these routes. Moreover, electrospray nanoparticles have proven valuable in targeted drug delivery, improving drug bioavailability and efficacy. Their ability to penetrate tissues and cells enables enhanced drug delivery to specific sites within the body. Additionally, electrospray nanoparticles can be tailored with targeting ligands or responsive components for controlled release and combination therapy, exhibiting successful applications in cancer treatment and neurological disorders. Therefore, electrospray nanoparticle technology shows great promise in biomedical applications, offering a versatile platform for targeted drug delivery and therapeutic interventions. This comprehensive review examines the various drug delivery applications of electrospraying and provides insights into its possibilities and challenges. The paper discusses the principles, methods, and parameters of electrospraying, while also exploring its use in fabricating drug delivery systems, addressing poorly soluble drugs. By synthesizing the findings from multiple studies, this review offers a comprehensive understanding of electrospraying's current state and potential in the pharmaceutical industry.

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Sacrificial sulphonated polystyrene template-assisted synthesis of mesoporous hollow core-shell silica nanoparticles for drug-delivery application

Cited by 2 publications

References 47 publications

Synthesis and properties of Sulphonated Polystyrene, Their New Composites and IPNs

Synthesis and properties of Sulphonated Polystyrene, Their New Composites and IPNs

Review on electrospray nanoparticles for drug delivery: Exploring applications

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