Physical stimuli-responsive liposomes and polymersomes as drug delivery vehicles based on phase transitions in the membrane

Nanoscale ◽  
2018 ◽  
Vol 10 (15) ◽  
pp. 6781-6800 ◽  
Author(s):  
Yangwei Deng ◽  
Jun Ling ◽  
Min-Hui Li
Keyword(s):  
Drug Delivery ◽  
Phase Transitions ◽  
Drug Release ◽  
Liquid Crystalline ◽  
Stimuli Responsive ◽  
Physical Stimulation ◽  
Drug Delivery Vehicles ◽  
Liquid Crystalline Phases ◽  
Physical Stimuli ◽  
Delivery Vehicles

Crystalline and liquid crystalline phases in the membrane lead to intriguing morphologies of vesicles for drug release upon physical stimulation.

scholarly journals Advances in Molecularly Imprinted Polymers as Drug Delivery Systems

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3589
Author(s):  
Rui Liu ◽  
Alessandro Poma
Keyword(s):  
Drug Delivery ◽  
Molecularly Imprinted Polymers ◽  
Drug Loading ◽  
Stimuli Responsive ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Drug Delivery Vehicles ◽  
The Past ◽  
Drug Molecules ◽  
Delivery Vehicles

Despite the tremendous efforts made in the past decades, severe side/toxic effects and poor bioavailability still represent the main challenges that hinder the clinical translation of drug molecules. This has turned the attention of investigators towards drug delivery vehicles that provide a localized and controlled drug delivery. Molecularly imprinted polymers (MIPs) as novel and versatile drug delivery vehicles have been widely studied in recent years due to the advantages of selective recognition, enhanced drug loading, sustained release, and robustness in harsh conditions. This review highlights the design and development of strategies undertaken for MIPs used as drug delivery vehicles involving different drug delivery mechanisms, such as rate-programmed, stimuli-responsive and active targeting, published during the course of the past five years.

scholarly journals BI-GELS: A NOVEL MATERIAL FOR TRANSDERMAL DRUG DELIVERY

2021 ◽  
pp. 1-5
Author(s):  
SARIPILLI RAJESWARI ◽  
RAJESWARI PULLABHATLA ◽  
CHUKKA YERNI SATYAVATHI
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Transdermal Drug Delivery ◽  
Drug Release Rate ◽  
Drug Delivery Vehicles ◽  
Novel Material ◽  
Delivery Vehicles ◽  
Semi Solid ◽  
Transdermal Route ◽  
Application Property

Bi-gels semi solid formulation is combination of organogel and hydrogel with better application property such as pharmaceutical and cosmetics. The main objective of this review is specially focuses on application of bi-gels as drug delivery vehicles by transdermal route. It contains two different phases which are polar and nonpolar due to which, it possess some significant features such as ability to deliver the hydrophilic and hydrophobic drugs which also have improved permeability of drugs, better spreading ability, and water wash ability. Hence, bigels have both organogels and hydrogels they can enhanced hydration of stratum corneum and also had an ability to manipulate the drug release rate from the dosage from.

scholarly journals Magnetically responsive layer-by-layer microcapsules can be retained in cells and under flow conditions to promote local drug release without triggering ROS production

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7735-7748 ◽  
Author(s):  
Jordan E. Read ◽  
Dong Luo ◽  
Tina T. Chowdhury ◽  
Rod J. Flower ◽  
Robin N. Poston ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cell Migration ◽  
Drug Release ◽  
Layer By Layer ◽  
Ros Production ◽  
Flow Conditions ◽  
Drug Delivery Vehicles ◽  
Delivery Vehicles ◽  
Migration Assays ◽  
In Cells

Magnetically responsive LbL microcapsules are biologically inert, magnetically retained in flow and cell migration assays so are retainable drug delivery vehicles.

scholarly journals Magnetoliposomes: opportunities and challenges

2014 ◽  
Vol 6 (4) ◽  
Author(s):  
Christophe A. Monnier ◽  
David Burnand ◽  
Barbara Rothen-Rutishauser ◽  
Marco Lattuada ◽  
Alke Petri-Fink
Keyword(s):  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Stimuli Responsive ◽  
Magnetic Fluid Hyperthermia ◽  
Drug Delivery Vehicles ◽  
Current State ◽  
New Concepts ◽  
Delivery Vehicles ◽  
Embedded Nanoparticles ◽  
Theoretical Considerations

AbstractCombining liposomes with magnetic nanoparticles is an intriguing approach to create multifunctional vesicles for medical applications, which range from controlled drug delivery vehicles to diagnostic imaging enhancers. Over the past decade, significant effort has been invested in developing such hybrids – widely known as magnetoliposomes – and has led to numerous new concepts. This review provides an overview on of the current state of the art in this field. The concept of magnetic fluid hyperthermia and stimuli-responsive nanoparticles for drug delivery is briefly recapitulated. The materials needed for these hybrids are addressed as well. The three typically followed approaches to associate magnetic nanoparticles to the liposomes are described and discussed more in detail. The final chapters are dedicated to the analytical methods used to characterize these hybrids and to theoretical considerations relevant for bilayer-embedded nanoparticles.

scholarly journals Lectin-gated, mesoporous, photofunctionalized glyconanoparticles for glutathione-responsive drug delivery

2015 ◽  
Vol 51 (48) ◽  
pp. 9833-9836 ◽  
Author(s):  
Juan Zhou ◽  
Nanjing Hao ◽  
Thareendra De Zoyza ◽  
Mingdi Yan ◽  
Olof Ramström
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Cancer Cells ◽  
Controlled Drug Release ◽  
Stimuli Responsive ◽  
Delivery Vehicles

Stimuli-responsive, lectin-gated mesoporous glyconanoparticles have been developed as delivery vehicles for controlled drug release into cancer cells.

Fe3O4@carbon@zeolitic imidazolate framework-8 nanoparticles as multifunctional pH-responsive drug delivery vehicles for tumor therapy in vivo

2015 ◽  
Vol 3 (46) ◽  
pp. 9033-9042 ◽  
Author(s):  
Mengni He ◽  
Jiajia Zhou ◽  
Jian Chen ◽  
Fangcai Zheng ◽  
Dongdong Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cancer Therapy ◽  
Drug Release ◽  
Tumor Therapy ◽  
Controlled Drug Release ◽  
Ph Responsive ◽  
Zeolitic Imidazolate Framework ◽  
Drug Delivery Vehicles ◽  
Delivery Vehicles

Controlled drug release is a promising approach for cancer therapy due to its merits of reduced systemic toxicity and enhanced antitumor efficacy.

scholarly journals Doxorubicin–Gelatin/Fe3O4–Alginate Dual-Layer Magnetic Nanoparticles as Targeted Anticancer Drug Delivery Vehicles

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1747
Author(s):  
Chiung-Hua Huang ◽  
Ting-Ju Chuang ◽  
Cherng-Jyh Ke ◽  
Chun-Hsu Yao
Keyword(s):  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Drug Release ◽  
Cancer Cells ◽  
Anticancer Drug ◽  
Magnetic Layer ◽  
Drug Delivery Vehicles ◽  
Anticancer Drug Delivery ◽  
Delivery Vehicles ◽  
Mcf 7

In this study, magnetic nanoparticles composed of a core (doxorubicin–gelatin) and a shell layer (Fe3O4–alginate) were developed to function as targeted anticancer drug delivery vehicles. The anticancer drug doxorubicin (DOX) was selected as a model drug and embedded in the inner gelatin core to obtain high encapsulation efficiency. The advantage of the outer magnetic layer is that it targets the drug to the tumor tissue and provides controlled drug release. The physicochemical properties of doxorubicin–gelatin/Fe3O4–alginate nanoparticles (DG/FA NPs) were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction. The mean diameter of DG/FA NPs, which was determined using a zeta potential analyzer, was 401.8 ± 3.6 nm. The encapsulation rate was 64.6 ± 11.8%. In vitro drug release and accumulation were also studied. It was found that the release of DOX accelerated in an acidic condition. With the manipulation of an external magnetic field, DG/FA NPs efficiently targeted Michigan Cancer Foundation-7 (MCF-7) breast cancer cells and showed in the nucleus after 6 h of incubation. After 12 h of incubation, the relative fluorescence intensity reached 98.4%, and the cell viability of MCF-7 cells decreased to 52.3 ± 4.64%. Dual-layer DG/FA NPs could efficiently encapsulate and deliver DOX into MCF-7 cells to cause the death of cancer cells. The results show that DG/FA NPs have the potential for use in targeted drug delivery and cancer therapy.

scholarly journals The influence of lipid digestion on the fate of orally administered drug delivery vehicles

2021 ◽  
Author(s):  
Ben J. Boyd ◽  
Andrew J. Clulow
Keyword(s):  
Drug Delivery ◽  
Self Assembly ◽  
Liquid Crystalline ◽  
Drug Solubility ◽  
Lipid Digestion ◽  
Drug Delivery Vehicles ◽  
Packing Parameter ◽  
Lipid Chain ◽  
Polymorphic Forms ◽  
Delivery Vehicles

This review will focus on orally administered lipid-based drug delivery vehicles and specifically the influence of lipid digestion on the structure of the carrier lipids and their entrained drug cargoes. Digestion of the formulation lipids, which are typically apolar triglycerides, generates amphiphilic monoglycerides and fatty acids that can self-assemble into a diverse array of liquid crystalline structures. Tracking the dynamic changes in self-assembly of the lipid digestion products during digestion has recently been made possible using synchrotron-based small angle X-ray scattering. The influence of lipid chain length and degree of unsaturation on the resulting lipid structuring will be described in the context of the critical packing parameter theory. The chemical and structural transformation of the formulation lipids can also have a dramatic impact on the physical state of drugs co-administered with the formulation. It is often assumed that the best strategy for drug development is to maximise drug solubility in the undigested formulation lipids and to incorporate additives to maintain drug solubility during digestion. However, it is possible to improve drug absorption using lipid digestion in cases where the solubility of the dosed drug or one of its polymorphic forms is greater in the digested lipids. Three different fates for drugs administered with digestible lipid-based formulations will be discussed: (1) where the drug is more soluble in the undigested formulation lipids; (2) where the drug undergoes a polymorphic transformation during lipid digestion; and (3) where the drug is more soluble in the digested formulation lipids.

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