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.

Folate-conjugated dually responsive micelles for targeted anticancer drug delivery

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35658-35667 ◽  
Author(s):  
Lingling Zhao ◽  
Yajuan Zhang ◽  
Jia Shao ◽  
Hongze Liang ◽  
Haining Na ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Anticancer Activity ◽  
Anticancer Drug ◽  
Anticancer Drug Delivery ◽  
Dual Responsive

Folate-conjugated dual-responsive micelles were developed, sustained and sensitive drug release from the drug loaded micelles was observed. Folate-targeted micelles showed higher anticancer activity and enhanced cellar uptake than non-targeted ones.

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 Cryo-shocked cancer cells for targeted drug delivery and vaccination

2020 ◽  
Vol 6 (50) ◽  
pp. eabc3013
Author(s):  
Tianyuan Ci ◽  
Hongjun Li ◽  
Guojun Chen ◽  
Zejun Wang ◽  
Jinqiang Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cancer Cells ◽  
Liquid Nitrogen ◽  
Targeted Drug Delivery ◽  
Targeted Delivery ◽  
Myeloid Leukemia ◽  
Live Cells ◽  
Simple Method ◽  
Drug Delivery Vehicles ◽  
Delivery Vehicles

Live cells have been vastly engineered into drug delivery vehicles to leverage their targeting capability and cargo release behavior. Here, we describe a simple method to obtain therapeutics-containing “dead cells” by shocking live cancer cells in liquid nitrogen to eliminate pathogenicity while preserving their major structure and chemotaxis toward the lesion site. In an acute myeloid leukemia (AML) mouse model, we demonstrated that the liquid nitrogen–treated AML cells (LNT cells) can augment targeted delivery of doxorubicin (DOX) toward the bone marrow. Moreover, LNT cells serve as a cancer vaccine and promote antitumor immune responses that prolong the survival of tumor-bearing mice. Preimmunization with LNT cells along with an adjuvant also protected healthy mice from AML cell challenge.

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 Encapsulation of Hydrophobic Drugs in Shell-by-Shell Coated Nanoparticles for Radio—and Chemotherapy—An In Vitro Study

2020 ◽  
Vol 7 (4) ◽  
pp. 126
Author(s):  
Stefanie Klein ◽  
Tobias Luchs ◽  
Andreas Leng ◽  
Luitpold Distel ◽  
Winfried Neuhuber ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Anticancer Drugs ◽  
Double Layer ◽  
Oxide Surface ◽  
Al2o3 Nanoparticles ◽  
X Rays ◽  
Hydrophobic Drugs ◽  
Drug Delivery Vehicles ◽  
Delivery Vehicles ◽  
Mcf 7

Our research objective was to develop novel drug delivery vehicles consisting of TiO2 and Al2O3 nanoparticles encapsulated by a bilayer shell that allows the reversible embedment of hydrophobic drugs. The first shell is formed by covalent binding of hydrophobic phosphonic acid at the metal oxide surface. The second shell composed of amphiphilic sodium dodecylbenzenesulfonate emerges by self-aggregation driven by hydrophobic interactions between the dodecylbenzene moiety and the hydrophobic first shell. The resulting double layer provides hydrophobic pockets suited for the intake of hydrophobic drugs. The nanoparticles were loaded with the anticancer drugs quercetin and 7-amino-4-methylcoumarin. Irradiation with X-rays was observed to release the potential anticancer drugs into the cytoplasm. In Michigan Cancer Foundation (MCF)-10 A cells, quercetin and 7-amino-4-methylcoumarin acted as antioxidants by protecting the non-tumorigenic cells from harmful radiation effects. In contrast, these agents increased the reactive oxygen species (ROS) formation in cancerous MCF-7 cells. Quercetin and 7-amino-4-methylcoumarin were shown to induce apoptosis via the mitochondrial pathway in cancer cells by determining an increase in TUNEL-positive cells and a decrease in mitochondrial membrane potential after irradiation. After X-ray irradiation, the survival fraction of MCF-7 cells with drug-loaded nanoparticles considerably decreased, which demonstrates the excellent performance of the double-layer stabilized nanoparticles as drug delivery vehicles.

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