scholarly journals Dynamic crosslinked and injectable biohydrogels as extracellular matrix mimics for the delivery of antibiotics and 3D cell culture

RSC Advances ◽  
2020 ◽  
Vol 10 (33) ◽  
pp. 19587-19599 ◽  
Author(s):  
Zhiping Fan ◽  
Ping Cheng ◽  
Min Liu ◽  
Sangeeta Prakash ◽  
Jun Han ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cell Culture ◽  
Extracellular Matrix ◽  
Drug Release ◽  
Release Rate ◽  
3D Cell Culture ◽  
Drug Release Rate ◽  
Sustained Drug Delivery ◽  
Cell Scaffold ◽  
Potential Applications

Polysaccharides-polypeptide derived biohydrogels were formed using hydrazone chemistry as crosslinking strategy, which have controllable drug release rate and many other potential applications, especially in sustained drug delivery and cell scaffold.

scholarly journals Synthesis of a PVA drug delivery system for controlled release of a Tramadol–Dexketoprofen combination

2021 ◽  
Vol 32 (5) ◽  
Author(s):  
Juan Carlos Flores-Arriaga ◽  
Daniel Chavarría-Bolaños ◽  
Amaury de Jesús Pozos-Guillén ◽  
Vladimir Alonso Escobar-Barrios ◽  
Bernardino Isaac Cerda-Cristerna
Keyword(s):  
Drug Delivery ◽  
Molecular Weight ◽  
Citric Acid ◽  
Postoperative Pain ◽  
Drug Release ◽  
Release Rate ◽  
Poly Vinyl Alcohol ◽  
Prolonged Release ◽  
Scanning Calorimetry ◽  
Drug Release Rate

AbstractThe local administration of analgesic combinations by means of degradable polymeric drug delivery systems is an alternative for the management of postoperative pain. We formulated a Tramadol–Dexketoprofen combination (TDC) loaded in poly(vinyl alcohol) (PVA) film. Films were prepared by the solvent casting method using three different molecular weights of PVA and crosslinking those films with citric acid, with the objective of controlling the drug release rate, which was evaluated by UV–vis spectrometry. Non-crosslinked PVA films were also evaluated in the experiments. Differential scanning calorimetry (DSC) analysis of samples corroborated the crosslinking of PVA by the citric acid. Blank and loaded PVA films were tested in vitro for its impact on blood coagulation prothrombin time (PT) and partial thromboplastin time (PTT). The swelling capacity was also evaluated. Crosslinked PVA films of higher-molecular weight showed a prolonged release rate compared with that of the lower-molecular-weight films tested. Non-crosslinked PVA films released 11–14% of TDC. Crosslinked PVA films released 80% of the TDC loaded (p < 0.05). This suggests that crosslinking films can modify the drug release rate. The blank and loaded PVA films induced PT and PTT in the normal range. The results showed that the polymeric films evaluated here have the appropriate properties to allow films to be placed directly on surgical wounds and have the capacity for controlled drug release to promote local analgesia for the control of postoperative pain.

scholarly journals Controlled drug release rate and contemporary issues in oral drug delivery formulations

2021 ◽  
Vol 6 (2) ◽  
pp. 29-36
Author(s):  
Ritu Jain ◽  
Ritesh Tiwari ◽  
Rama Shankar Dubey ◽  
Aarti Tiwari ◽  
Ajay Kumar Shukla
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Release Rate ◽  
Oral Drug Delivery ◽  
Controlled Drug Release ◽  
Oral Drug ◽  
Drug Release Rate

scholarly journals Improved shellac mediated nanoscale application drug release effect in a gastric-site drug delivery system

RSC Advances ◽  
2017 ◽  
Vol 7 (84) ◽  
pp. 53401-53406 ◽  
Author(s):  
Ke Ma ◽  
Yiping Qiu ◽  
Yaqin Fu ◽  
Qing-Qing Ni
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Release Rate ◽  
Drug Release Rate ◽  
System P

Six kinds of nanoscale application are designed in this study. A significant increase of drug release rate can be observed at the gastric site.

Microorganism-based monodisperse microcapsules: encapsulation of the fungicide tebuconazole and its controlled release properties

RSC Advances ◽  
2015 ◽  
Vol 5 (32) ◽  
pp. 25164-25170 ◽  
Author(s):  
Bo Zhang ◽  
Teng Zhang ◽  
Quanxi Wang ◽  
Tianrui Ren
Keyword(s):  
Controlled Release ◽  
Powdery Mildew ◽  
Drug Release ◽  
Release Rate ◽  
Drug Release Rate ◽  
Burst Effect ◽  
Initial Burst ◽  
Release System ◽  
Controlled Release System ◽  
Monodisperse Microcapsules

A controlled release system was prepared, it based on UF modified PCC cells in which TEB are loaded into cells. It can control the drug release rate, depress the initial “burst effect”, and was efficacious in controlling wheat powdery mildew.

Amoxicillin-loaded polyethylcyanoacrylate nanoparticles: Influence of PEG coating on the particle size, drug release rate and phagocytic uptake

Biomaterials ◽  
2001 ◽  
Vol 22 (21) ◽  
pp. 2857-2865 ◽  
Author(s):  
Giacomo Fontana ◽  
Mariano Licciardi ◽  
Silvana Mansueto ◽  
Domenico Schillaci ◽  
Gaetano Giammona
Keyword(s):  
Particle Size ◽  
Drug Release ◽  
Release Rate ◽  
Drug Release Rate ◽  
Peg Coating ◽  
Phagocytic Uptake
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