Characterisation of 2-HP-β-cyclodextrin-PLGA nanoparticle complexes for potential use as ocular drug delivery vehicles

Li, Fan; Wen, Yuqin; Zhang, Yan; Zheng, Kangyu; Ban, Junfeng; Xie, Qiuling; Wen, Yifeng; Liu, Qing; Chen, Fohua; Mo, Zhenjie; Liu, Lizhong; Chen, Yanzhong; Lu, Zhufen

doi:10.1080/21691401.2019.1683567

Cited by 26 publications

(16 citation statements)

References 44 publications

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“…The absorption-desorption isotherms of the samples AgNPs shown in Figure 5 presents the type IV hysteresis phenomenon interpreted to be Slit-like pores in AgNPs pair combined with a type II isotherm presumed to be without pores. Based on the Barrett-Joiner-Halenda (BJH) model, the results were found to be surface area (12.861 m 2 /g), pore volume (0.037 cc/g), and pore radius (24.50 nm) [38]. BJH pore size distribution curves of AgNPs are shown in Figure 6.…”

Section: Bet Analysismentioning

confidence: 99%

Green Synthesized Silver Nanoparticles Using Tridax Procumbens for Topical Application: Excision Wound Model and Histopathological Studies

et al. 2021

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The objective of this study was to synthesize silver nanoparticles from the leaves of Tridax procumbens and develop its topical gels using chitosan to investigate the wound healing efficacy concomitant with the histopathological study. Green synthesized silver nanoparticles (AgNPs) were prepared by reacting silver nitrate (0.3 M) with leaf extract and characterized by particle analysis, FTIR, XRD, SEM, BET, and TGA. The results revealed formed AgNPs were nano-sized (138 ± 2.1 nm), monodispersed (PDI: 0.460 ± 0.3), inter-particle repulsion (zeta: −20.4 ± 5.20 mV), stabilized, crystalline and, spherical with size ranging from 80–100 nm as per SEM micro photos. The BET analysis of AgNPs presents the surface area (12.861 m2/g), pore volume (0.037 cc/g), and pore radius (24.50 nm).TGA results show a loss of 13.39% up to 300 °C. The topical formulation was developed by loading AgNPs in chitosan-based gels, evaluated by pH, thermal cycling, centrifugal, and spreadability tests. AgNPs chitosan gels results showed skin compatibility, higher stability, and spreading ability. The maximum antibacterial zone of inhibition was found to be 25 ± 0.98 mm for bacillus subtitles and 30 ± 1.99 mm for Klebsiella pneumoniae, respectively. Nanosilver-containing gel also showed excellent compatibility with erythrocytes. Excision wound model was used to assess the wound healing property of the developed AgNP gels, the results of which indicated a significantly progressive healing process in test-group of animals treated with chitosan-based gels containing AgNPs. A histopathological study further confirmed the almost normal skin structure of treated animal tissue compared to standard and negative control. Thus, green synthesized AgNPs loaded chitosan-based topical gel can potentially be used for wound healing application.

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Section: Bet Analysismentioning

confidence: 99%

Green Synthesized Silver Nanoparticles Using Tridax Procumbens for Topical Application: Excision Wound Model and Histopathological Studies

et al. 2021

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“…The IC is widely used to solve the problems with solubility, degradability or bioavailability of drugs in physiological condition. The simplest method to introduce IC to polymeric NPs is based on the physical mixing of components before NPs formation [27,38]. However, the most attractive approach is to attach β-CD to the polymer chain before the formation of IC and NPs.…”

Section: Polylactide Systems Based On Cyclodextrin For Controlled Drumentioning

confidence: 99%

Biocompatible Polymers Combined with Cyclodextrins: Fascinating Materials for Drug Delivery Applications

et al. 2020

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Cyclodextrins (CD) are a group of cyclic oligosaccharides with a cavity/specific structure that enables to form inclusion complexes (IC) with a variety of molecules through non-covalent host-guest interactions. By an elegant combination of CD with biocompatible, synthetic and natural polymers, different types of universal drug delivery systems with dynamic/reversible properties have been generated. This review presents the design of nano- and micro-carriers, hydrogels, and fibres based on the polymer/CD supramolecular systems highlighting their possible biomedical applications. Application of the most prominent hydrophobic aliphatic polyesters that exhibit biodegradability, represented by polylactide and polycaprolactone, is described first. Subsequently, particular attention is focused on materials obtained from hydrophilic polyethylene oxide. Moreover, examples are also presented for grafting of CD on polysaccharides. In summary, we show the application of host-guest interactions in multi-component functional biomaterials for controlled drug delivery.

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“…Cyclodextrins have been of interest for the pharmaceutical and cosmetic industry for many years [1–5]. Native cyclodextrins have been employed to improve physical stability of submicron emulsions for dermal delivery; skin permeation of incorporated drugs can be enhanced [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of hydroxypropyl‐β‐cyclodextrin in fluid and semi‐solid submicron emulsions on physiological skin parameters during regular in vivo application

Pany¹,

Wohlgenannt²,

Klopprogge

et al. 2021

Intern J of Cosmetic Sci

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Objective The aim of the present study was to evaluate the effect of hydroxypropyl‐β‐cyclodextrin (HP‐β‐CD) in cosmetic submicron emulsions and submicron emulsion gels on physiological skin parameters during regular application in a clinical set‐up. Methods Formulation morphology was investigated using cryo‐transmission electron microscopy. Stability of the employed formulations was determined by photon correlation spectroscopy, measurement of pH and rheological properties. Effect on physiological skin parameters was evaluated during regular application over four weeks in a parallel group study (n = 15, healthy forearm skin) with a Corneometer, Sebumeter, skin‐pH‐Meter, Aquaflux and an Epsilon sensor. Confocal Raman spectroscopy was employed to monitor urea and NMF levels. Results Both submicron emulsions and gels showed satisfying storage stability irrespective of cyclodextrin incorporation. No statistically significant effects on skin barrier function and any of the observed parameters were obtained, indicating good skin tolerability of all tested formulations. Conclusion Results suggest good skin tolerability of the developed cosmetic submicron emulsions and gels with HP‐β‐CD.

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Characterisation of 2-HP-β-cyclodextrin-PLGA nanoparticle complexes for potential use as ocular drug delivery vehicles

Cited by 26 publications

References 44 publications

Green Synthesized Silver Nanoparticles Using Tridax Procumbens for Topical Application: Excision Wound Model and Histopathological Studies

Green Synthesized Silver Nanoparticles Using Tridax Procumbens for Topical Application: Excision Wound Model and Histopathological Studies

Biocompatible Polymers Combined with Cyclodextrins: Fascinating Materials for Drug Delivery Applications

Effect of hydroxypropyl‐β‐cyclodextrin in fluid and semi‐solid submicron emulsions on physiological skin parameters during regular in vivo application

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