Preliminary study of coating 3D Printed Polymeric Gyroid structures using ‘Dragon’s blood’ extract as a potential delivery system

Author(s):  
Luis Allauca ◽  
Gabriel Guerra ◽  
Hernan Lara
2019 ◽  
Vol 964 ◽  
pp. 240-245 ◽  
Author(s):  
Amaliya Rasyida ◽  
Thalyta Rizkha Pradipta ◽  
Sigit Tri Wicaksono ◽  
Vania Mitha Pratiwi ◽  
Yeny Widya Rakhmawati

Utilization of brown algae especially in Madura, where it’s close to Surabaya, only limited for food. This become a reference for developing and increasing the potential of this algae by extracting one of the ingredients, namely alginate. This paper deals with the characterization of sodium alginate extracted from sargassum sp. using modified-purified calcium routes. The extracted sodium alginate will be further used as composite hydrogel materials and compared with commercial sodium alginate. Hereafter, the synthesized composite is expected to be bio-ink for 3d printer. Chemical composition analysis were analyzed using X-Ray Fluorosense (XRF) followed by Fourier-transform infrared spectroscopy (FTIR) analysis to identify the functional group of composite and X-Ray Diffraction (XRD). Furthermore, viscosity bath is performed to compare the viscosity of extracted and commercial one. The result shows that modified-purified calcium routes in the extraction process of sodium alginate is desirable for improving their properties. Interestingly enough, with the goal of using it as bio-ink in 3d printed fabrication, the synthesized composite shows viscosity, 300 cSt, which meets the criteria for bio-ink in 3d printer.


2019 ◽  
Vol 304 (11) ◽  
pp. 1900295 ◽  
Author(s):  
Lijuan Ye ◽  
Jingguang Wang ◽  
Cancheng Liao ◽  
Shuqi Li ◽  
Yuqi Fang ◽  
...  

2015 ◽  
Vol 67 (1) ◽  
pp. 189-194 ◽  
Author(s):  
Seonghoon Jeong ◽  
Myonggeun Yoon ◽  
Weon Kuu Chung ◽  
Dong Wook Kim

2011 ◽  
Vol 135 (2) ◽  
pp. 510-514 ◽  
Author(s):  
Nian Xin ◽  
Yu-Juan Li ◽  
Yan Li ◽  
Rong-Ji Dai ◽  
Wei-Wei Meng ◽  
...  

2021 ◽  
Vol 11 (22) ◽  
pp. 10727
Author(s):  
Ezgi Saylam ◽  
Yigit Akkaya ◽  
Elif Ilhan ◽  
Sumeyye Cesur ◽  
Ece Guler ◽  
...  

Parkinson’s disease, the second most common neurodegenerative disease in the world, develops due to decreased dopamine levels in the basal ganglia. Levodopa, a dopamine precursor used in the treatment of Parkinson’s disease, can be used as a drug delivery system. This study presents an approach to the use of 3D-printed levodopa-loaded neural tissue scaffolds produced with polylactic acid (PLA) and chitosan (CS) for the treatment of Parkinson’s disease. Surface morphology and pore sizes were examined by scanning electron microscopy (SEM). Average pore sizes of 100–200 µm were found to be ideal for tissue engineering scaffolds, allowing cell penetration but not drastically altering the mechanical properties. It was observed that the swelling and weight loss behaviors of the scaffolds increased after the addition of CS to the PLA. Levodopa was released from the 3D-printed scaffolds in a controlled manner for 14 days, according to a Fickian diffusion mechanism. Mesenchymal stem cells (hAD-MSCs) derived from human adipose tissue were used in MTT analysis, fluorescence microscopy and SEM studies and confirmed adequate biocompatibility. Overall, the obtained results show that PLA/CS 3D-printed scaffolds have an alternative use for the levodopa delivery system for Parkinson’s disease in neural tissue engineering applications.


2020 ◽  
Vol 186 ◽  
pp. 108336 ◽  
Author(s):  
Yonghui Wang ◽  
Liang Sun ◽  
Zhigang Mei ◽  
Fazhou Zhang ◽  
Meifang He ◽  
...  

2020 ◽  
Vol 192 ◽  
pp. 111068 ◽  
Author(s):  
Kejing Shi ◽  
Rodrigo Aviles-Espinosa ◽  
Elizabeth Rendon-Morales ◽  
Lisa Woodbine ◽  
Mohammed Maniruzzaman ◽  
...  

2019 ◽  
Vol 24 (42) ◽  
pp. 5029-5038 ◽  
Author(s):  
Md. Shoaib Alam ◽  
Ayesha Akhtar ◽  
Iftikhar Ahsan ◽  
Sheikh Shafiq-un-Nabi

Background: 3D printed pharmaceutical products are revolutionizing the pharmaceutical industry as a prospective mean to achieve a personalized method of treatments acquired to the specially designed need of each patient. It will depend upon age, weight, concomitants, pharmacogenetics and pharmacokinetic profile of the patient and thus transforming the current pharmaceutical market as a potential alternative to conventional medicine. 3D printing technology is getting more consideration in new medicine formulation development as a modern and better alternative to control many challenges associated with conventional medicinal products. There are many advantages of 3D printed medicines which create tremendous opportunities for improving the acceptance, accuracy and effectiveness of these medicines. In 2015, United State Food and Drug Administration has approved the first 3D printed tablet (Spritam®) and had shown the emerging importance of this technology. Methods: This review article summarizes as how in-depth knowledge of drugs and their manufacturing processes can assist to manage different strategies for various 3D printing methods. The principal goal of this review is to provide a brief introduction about the present techniques employed in tech -medicine evolution from conventional to a novel drug delivery system. Results: It is evidenced that through its unparalleled advantages of high-throughput, versatility, automation, precise spatial control and fabrication of hierarchical structures, the implementation of 3D printing for the expansion and delivery of controlled drugs acts as a pivotal role. Conclusion: 3D printing technology has an extraordinary ability to provide elasticity in the manufacturing and designing of composite products that can be utilized in programmable and personalized medicine. Personalized medicine helps in improving drug safety and minimizes side effects such as toxicity to individual human being which is associated with unsuitable drug dose.


Author(s):  
Md Omar Faruk Emon ◽  
Jae-Won Choi

In this report, we present a 3D printed insole which has multiple soft pressure sensors inserted in it to detect the force on the sole including heel, midfoot, and forefoot as well as timing and location of the strike while walking. The insole was 3D printed using a soft and flexible material having multiple open channels on it to attach sensors. Flexible and stretchable piezoresistive sensors were fabricated via screen printing and molding processes. The multi-layer sensor comprises an ionic liquid (IL) based piezoresistive layer sandwiched between two multi-walled carbon nanotube (MWCNT) based stretchable electrodes and finally, top and bottom insulation layers. The sensor was constructed using 3D printable photopolymer as 3D printing is our target manufacturing technique to build the entire structure including insole. The sensor embedded insole was evaluated for different foot landing conditions such as heel strike, midfoot strike, and forefoot strike. Experimental results showed that the developed insole could indicate the amount of force on insole when foot hits ground, with timing and location of the strike.


2012 ◽  
Vol 74 (10) ◽  
pp. 1323-1326 ◽  
Author(s):  
Dae-Hyun KIM ◽  
Chi-Bong CHOI ◽  
Wook-Hun CHUNG ◽  
Sung-Ho LEE ◽  
A-Jin LEE ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document