scholarly journals Hyaluronic Acid-Chitosan Nanoparticles to Deliver Gd-DTPA for MR Cancer Imaging

Nanomaterials ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 1379-1396 ◽  
Author(s):  
Li Zhang ◽  
Tingxian Liu ◽  
Yanan Xiao ◽  
Dexin Yu ◽  
Na Zhang
Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2302
Author(s):  
Qingwen Yu ◽  
Zhiyuan Meng ◽  
Yichao Liu ◽  
Zehao Li ◽  
Xing Sun ◽  
...  

After an osteosarcoma excision, recurrence and bone defects are significant challenges for clinicians. In this study, the curcumin (Cur) loaded chitosan (CS) nanoparticles (CCNP) encapsulated silk fibroin (SF)/hyaluronic acid esterified by methacrylate (HAMA) (CCNPs-SF/HAMA) hydrogel for the osteosarcoma therapy and bone regeneration was developed by photocuring and ethanol treatment. The micro or nanofibers networks were observed in the CCNPs-SF/HAMA hydrogel. The FTIR results demonstrated that alcohol vapor treatment caused an increase in β-sheets of SF, resulting in the high compression stress and Young’s modulus of CCNPs-SF/HAMA hydrogel. According to the water uptake analysis, SF caused a slight decrease in water uptake of CCNPs-SF/HAMA hydrogel while CCNPs could enhance the water uptake of it. The swelling kinetic results showed that both the CCNPs and the SF increased the swelling ratio of CCNPs-SF/HAMA hydrogel. The accumulative release profile of CCNPs-SF/HAMA hydrogel showed that the release of Cur from CCNPs-SF/HAMA hydrogel was accelerated when pH value was decreased from 7.4 to 5.5. Besides, compared with CCNPs, the CCNPs-SF/HAMA hydrogel had a more sustainable drug release, which was beneficial for the long-term treatment of osteosarcoma. In vitro assay results indicated that CCNPs-SF/HAMA hydrogel with equivalent Cur concentration of 150 μg/mL possessed both the effect of anti-cancer and promoting the proliferation of osteoblasts. These results suggest that CCNPs-SF/HAMA hydrogel with superior physical properties and the bifunctional osteosarcoma therapy and bone repair may be an excellent candidate for local cancer therapy and bone regeneration.


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Abdulaziz Almalik ◽  
Hicham Benabdelkamel ◽  
Afshan Masood ◽  
Ibrahim O. Alanazi ◽  
Ibrahim Alradwan ◽  
...  

Drug Delivery ◽  
2010 ◽  
Vol 17 (8) ◽  
pp. 596-604 ◽  
Author(s):  
Yolanda Parajó ◽  
Ivana d’Angelo ◽  
Alexander Welle ◽  
Marcos Garcia-Fuentes ◽  
María José Alonso

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 2016
Author(s):  
Carla V. Fuenteslópez ◽  
Hua Ye

Electrospinning is a versatile technique to produce nano/microscale fibrous scaffolds for tissue engineering and drug delivery applications. This research aims to demonstrate that hyaluronic acid-chitosan (HA-CS) nanoparticles can be electrospun together with polycaprolactone (PCL) and gelatine (Ge) fibres using a portable device to create scaffolds for tissue repair. A range of polymer solutions of PCL-gelatine at different weight/volume concentrations and ratios were electrospun and characterised. Fibre–cell interaction (F11 cells) was evaluated based on cell viability and proliferation and, from here, a few polymer blends were electrospun into random or aligned fibre arrangements. HA-CS nanoparticles were synthesised, characterised, and used to functionalise electrospun fibres (8% w/v at 70 PCL:30 Ge), which were chosen based on cell viability. Different concentrations of HA-CS nanoparticles were tested to determine cytotoxicity. A single dosage (1 × 10−2 mg/mL) was associated with higher cell proliferation compared with the cell-only control. This nanoparticle concentration was embedded into the electrospun fibres as either surface modification or blend. Fibres with blended NPs delivered a higher cell viability than unmodified fibres, while NP-coated fibres resulted in a higher cell proliferation (72 h) than the NP-blended ones. These biocompatible scaffolds allow cell attachment, maintain fibre arrangement, promote directional growth and yield higher cell viability.


Nanomaterials ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 201 ◽  
Author(s):  
Cecilia Gheran ◽  
Guillaume Rigaux ◽  
Maité Callewaert ◽  
Alexandre Berquand ◽  
Michael Molinari ◽  
...  

2008 ◽  
Vol 49 (5) ◽  
pp. 2016 ◽  
Author(s):  
Maria de la Fuente ◽  
Begon~a Seijo ◽  
Maria J. Alonso

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