Ultrasound-Enabled Therapeutic Delivery and Regenerative Medicine: Physical and Biological Perspectives

Author(s):  
Kahkashan Bansal ◽  
Chandan Kumar Jha ◽  
Dhiraj Bhatia ◽  
Himanshu Shekhar
2019 ◽  
Vol 31 (23) ◽  
pp. 1900332 ◽  
Author(s):  
Akhilesh K. Gaharwar ◽  
Lauren M. Cross ◽  
Charles W. Peak ◽  
Karli Gold ◽  
James K. Carrow ◽  
...  

Author(s):  
Mira Chingale ◽  
Dashuai Zhu ◽  
Ke Cheng ◽  
Ke Huang

Cardiac regenerative medicine faces big challenges such as a lack of adult cardiac stem cells, low turnover of mature cardiomyocytes, and difficulty in therapeutic delivery to the injured heart. The interaction of bioengineering and cardiac regenerative medicine offers innovative solutions to this field. For example, cell reprogramming technology has been applied by both direct and indirect routes to generate patient-specific cardiomyocytes. Various viral and non-viral vectors have been utilized for gene editing to intervene gene expression patterns during the cardiac remodeling process. Cell-derived protein factors, exosomes, and miRNAs have been isolated and delivered through engineered particles to overcome many innate limitations of live cell therapy. Protein decoration, antibody modification, and platelet membranes have been used for targeting and precision medicine. Cardiac patches have been used for transferring therapeutics with better retention and integration. Other technologies such as 3D printing and 3D culture have been used to create replaceable cardiac tissue. In this review, we discuss recent advancements in bioengineering and biotechnologies for cardiac regenerative medicine.


2020 ◽  
Vol 14 (3) ◽  
pp. 7235-7243
Author(s):  
N.M. Ali ◽  
F. Dzaharudin ◽  
E.A. Alias

Microbubbles have the potential to be used for diagnostic imaging and therapeutic delivery. However, the transition from microbubbles currently being used as ultrasound contrast agents to achieve its’ potentials in the biomedical field requires more in depth understanding. Of particular importance is the influence of microbubble encapsulation of a microbubble near a vessel wall on the dynamical behaviour as it stabilizes the bubble. However, many bubble studies do not consider shell encapsulation in their studies. In this work, the dynamics of an encapsulated microbubble near a boundary was studied by numerically solving the governing equations for microbubble oscillation. In order to elucidate the effects of a boundary to the non-linear microbubble oscillation the separation distances between microbubble will be varied along with the acoustic driving. The complex nonlinear vibration response was studied in terms of bifurcation diagrams and the maximum radial expansion. It was found that the increase in distance between the boundary and the encapsulated bubble will increase the oscillation amplitude. When the value of pressure amplitude increased the single bubble is more likely to exhibit the chaotic behaviour and maximum radius also increase as the inter wall-bubble distance is gradually increased. While, with higher driving frequency the maximum radial expansion decreases and suppress the chaotic behaviour.


2015 ◽  
Vol 6 (5) ◽  
pp. 291-298
Author(s):  
Barbara Różalska ◽  
Bartłomiej Micota ◽  
Małgorzata Paszkiewicz ◽  
Beata Sadowska

2011 ◽  
Vol 62 (2) ◽  
pp. 84-85 ◽  
Author(s):  
K. Omori ◽  
T. Nakamura ◽  
Y. Tada ◽  
Y. Nomoto ◽  
T. Suzuki ◽  
...  

2011 ◽  
Vol 62 (2) ◽  
pp. 81-82
Author(s):  
S. Hirano

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