Marlene Ramona Schmidt , Astrid Dagmar Bernkop-Schnürch , Daniel Stengel , Magnus Andre Kiechle , Khush Bakhat Afzal , Anna Seybold , Martin Hermann , Brigitte Kircher , Andreas Bernkop-Schnürch
{"title":"氯二胺[N,N'-双(水杨基)-1,2-苯二胺]铁的潜力评估(III):通过脂质纳米载体的递送探索。","authors":"Marlene Ramona Schmidt , Astrid Dagmar Bernkop-Schnürch , Daniel Stengel , Magnus Andre Kiechle , Khush Bakhat Afzal , Anna Seybold , Martin Hermann , Brigitte Kircher , Andreas Bernkop-Schnürch","doi":"10.1016/j.ejps.2025.107206","DOIUrl":null,"url":null,"abstract":"<div><h3>Aim</h3><div>This research outlines the development of an innovative delivery system for administration of chlorido[<em>N,N</em>'-bis(salicylidene)-1,2-phenylenediamine]-iron(III) salophene – designated Iron(III) Salophene (Fe³⁺SP).</div></div><div><h3>Methodology</h3><div>The identity of Fe³⁺SP was confirmed using FTIR, and its lipophilicity (log P) was quantified by HPLC. Fe³⁺SP was then incorporated into lipid-based nanocarriers (LBNCs) with a lipid matrix of triglycerides of caprylic/capric acid (45.4 %; v/v), phosphatidylcholine (36.4 %; m/v) and benzyl alcohol (18.2 %; v/v) as solvent. Metabolic activity was investigated via the MTT assay on various cell lines, and cellular uptake was analyzed by confocal laser scanning microscopy using different dyes.</div></div><div><h3>Results</h3><div>The log P value of 1.8 for the Fe<sup>3+</sup>SP-complex confirmed sufficient lipophilicity for incorporation into lipid-based nanocarriers. Ultrasonic treatment significantly reduced particle size from 1000 nm to about 200 nm and improved particle uniformity from 1.0 to about 0.2 for blank and Fe³⁺SP LBNCs. Different stability studies showed consistent droplet sizes in various buffer systems (150–230 nm) over 14 days, and uniform particle distribution (∼0.2) confirmed stability in physiological media over 48 h. TEM analysis revealed that Fe³⁺SP maintains uniform morphology and enhances stability, leading to consistent particle size and shape, promoting cellular uptake. Compared to Fe³⁺SP in DMSO, the LBNC-loaded formulation exhibited a five-fold higher effect on cancer cell lines at a similar cellular uptake, indicating higher efficacy.</div></div><div><h3>Conclusion</h3><div>These findings suggest that LBNCs offer a promising platform for the oral delivery of Fe³⁺SP, with significant advantages over conventional delivery systems.</div></div>","PeriodicalId":12018,"journal":{"name":"European Journal of Pharmaceutical Sciences","volume":"212 ","pages":"Article 107206"},"PeriodicalIF":4.7000,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Assessing the potential of chlorido[N,N'-bis(salicylidene)-1,2-phenylenediamine]iron(III): Exploring delivery through lipid-based nanocarriers\",\"authors\":\"Marlene Ramona Schmidt , Astrid Dagmar Bernkop-Schnürch , Daniel Stengel , Magnus Andre Kiechle , Khush Bakhat Afzal , Anna Seybold , Martin Hermann , Brigitte Kircher , Andreas Bernkop-Schnürch\",\"doi\":\"10.1016/j.ejps.2025.107206\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Aim</h3><div>This research outlines the development of an innovative delivery system for administration of chlorido[<em>N,N</em>'-bis(salicylidene)-1,2-phenylenediamine]-iron(III) salophene – designated Iron(III) Salophene (Fe³⁺SP).</div></div><div><h3>Methodology</h3><div>The identity of Fe³⁺SP was confirmed using FTIR, and its lipophilicity (log P) was quantified by HPLC. Fe³⁺SP was then incorporated into lipid-based nanocarriers (LBNCs) with a lipid matrix of triglycerides of caprylic/capric acid (45.4 %; v/v), phosphatidylcholine (36.4 %; m/v) and benzyl alcohol (18.2 %; v/v) as solvent. Metabolic activity was investigated via the MTT assay on various cell lines, and cellular uptake was analyzed by confocal laser scanning microscopy using different dyes.</div></div><div><h3>Results</h3><div>The log P value of 1.8 for the Fe<sup>3+</sup>SP-complex confirmed sufficient lipophilicity for incorporation into lipid-based nanocarriers. Ultrasonic treatment significantly reduced particle size from 1000 nm to about 200 nm and improved particle uniformity from 1.0 to about 0.2 for blank and Fe³⁺SP LBNCs. Different stability studies showed consistent droplet sizes in various buffer systems (150–230 nm) over 14 days, and uniform particle distribution (∼0.2) confirmed stability in physiological media over 48 h. TEM analysis revealed that Fe³⁺SP maintains uniform morphology and enhances stability, leading to consistent particle size and shape, promoting cellular uptake. Compared to Fe³⁺SP in DMSO, the LBNC-loaded formulation exhibited a five-fold higher effect on cancer cell lines at a similar cellular uptake, indicating higher efficacy.</div></div><div><h3>Conclusion</h3><div>These findings suggest that LBNCs offer a promising platform for the oral delivery of Fe³⁺SP, with significant advantages over conventional delivery systems.</div></div>\",\"PeriodicalId\":12018,\"journal\":{\"name\":\"European Journal of Pharmaceutical Sciences\",\"volume\":\"212 \",\"pages\":\"Article 107206\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2025-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Journal of Pharmaceutical Sciences\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0928098725002052\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PHARMACOLOGY & PHARMACY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Pharmaceutical Sciences","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0928098725002052","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHARMACOLOGY & PHARMACY","Score":null,"Total":0}
Assessing the potential of chlorido[N,N'-bis(salicylidene)-1,2-phenylenediamine]iron(III): Exploring delivery through lipid-based nanocarriers
Aim
This research outlines the development of an innovative delivery system for administration of chlorido[N,N'-bis(salicylidene)-1,2-phenylenediamine]-iron(III) salophene – designated Iron(III) Salophene (Fe³⁺SP).
Methodology
The identity of Fe³⁺SP was confirmed using FTIR, and its lipophilicity (log P) was quantified by HPLC. Fe³⁺SP was then incorporated into lipid-based nanocarriers (LBNCs) with a lipid matrix of triglycerides of caprylic/capric acid (45.4 %; v/v), phosphatidylcholine (36.4 %; m/v) and benzyl alcohol (18.2 %; v/v) as solvent. Metabolic activity was investigated via the MTT assay on various cell lines, and cellular uptake was analyzed by confocal laser scanning microscopy using different dyes.
Results
The log P value of 1.8 for the Fe3+SP-complex confirmed sufficient lipophilicity for incorporation into lipid-based nanocarriers. Ultrasonic treatment significantly reduced particle size from 1000 nm to about 200 nm and improved particle uniformity from 1.0 to about 0.2 for blank and Fe³⁺SP LBNCs. Different stability studies showed consistent droplet sizes in various buffer systems (150–230 nm) over 14 days, and uniform particle distribution (∼0.2) confirmed stability in physiological media over 48 h. TEM analysis revealed that Fe³⁺SP maintains uniform morphology and enhances stability, leading to consistent particle size and shape, promoting cellular uptake. Compared to Fe³⁺SP in DMSO, the LBNC-loaded formulation exhibited a five-fold higher effect on cancer cell lines at a similar cellular uptake, indicating higher efficacy.
Conclusion
These findings suggest that LBNCs offer a promising platform for the oral delivery of Fe³⁺SP, with significant advantages over conventional delivery systems.
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