Significant Role of Naturally Occurring Materials in Drug Delivery Technology for Tissue Regeneration Therapy

2008 ◽  
pp. 81-105
Author(s):  
Yasuhiko Tabata
Keyword(s):  
Drug Delivery ◽  
Tissue Regeneration ◽  
Significant Role ◽  
Naturally Occurring ◽  
Delivery Technology

scholarly journals Significant role of cationic polymers in drug delivery systems

2017 ◽  
pp. 1-20 ◽  
Author(s):  
Masoud Farshbaf ◽  
Soodabeh Davaran ◽  
Amir Zarebkohan ◽  
Nasim Annabi ◽  
Abolfazl Akbarzadeh ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Significant Role ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Cationic Polymers

Electrosprayed nanoparticles and electrospun nanofibers based on natural materials: applications in tissue regeneration, drug delivery and pharmaceuticals

2015 ◽  
Vol 44 (3) ◽  
pp. 790-814 ◽  
Author(s):  
Radhakrishnan Sridhar ◽  
Rajamani Lakshminarayanan ◽  
Kalaipriya Madhaiyan ◽  
Veluchamy Amutha Barathi ◽  
Keith Hsiu Chin Lim ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Tissue Regeneration ◽  
Electrospun Nanofibers ◽  
Natural Polymers ◽  
Engineering Applications ◽  
Natural Materials

The role of electrospun and electrosprayed natural polymers or drug ingredients for pharmaceutical and tissue engineering applications is presented in this review.

Ascorbic Acid in Polyurethane Systems for Tissue Engineering

2016 ◽  
Vol 10 (4s) ◽  
pp. 607-612
Author(s):  
Justyna Kucinska-Lipka ◽  
◽  
Helena Janik ◽  
Iga Gubanska ◽  
◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Extracellular Matrix ◽  
Ascorbic Acid ◽  
Porous Structure ◽  
Tissue Regeneration ◽  
Significant Role ◽  
Collagen Synthesis ◽  
Biological Properties ◽  
Primary Component

The introduction of the paper was devoted to the main items of tissue engineering (TE) and the way of porous structure obtaining as scaffolds. Furthermore, the significant role of the scaffold design in TE was described. It was shown, that properly designed polyurethanes (PURs) find application in TE due to the proper physicochemical, mechanical and biological properties. Then the use of L-ascorbic acid (L-AA) in PUR systems for TE was described. L-AA has been applied in this area due to its suitable biological characteristics and antioxidative properties. Moreover, L-AA influences tissue regeneration due to improving collagen synthesis, which is a primary component of the extracellular matrix (ECM). Modification of PUR with L-AA leads to the materials with higher biocompatibility and such system is promising for TE applications.

scholarly journals The Role of Transmission Electron Microscopy in the Early Development of Mesoporous Materials for Tissue Regeneration and Drug Delivery Applications

Pharmaceutics ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2200
Author(s):  
María Luisa Ruiz-González ◽  
Almudena Torres-Pardo ◽  
José M. González-Calbet
Keyword(s):  
Electron Microscopy ◽  
Drug Delivery ◽  
Transmission Electron Microscopy ◽  
Mesoporous Materials ◽  
Tissue Regeneration ◽  
Spectroscopic Techniques ◽  
Transmission Electron ◽  
Excellent Starting Point ◽  
Starting Point

For the last 20 years, silica-based mesoporous materials have provided a sound platform for the development of biomedical technology applied to tissue engineering and drug delivery. Their unique structural and textural characteristics, chiefly, the ordered distribution of homogeneous and tunable pores with high surface areas and large pore volume, and their excellent biocompatibility provide an excellent starting point for bone tissue regeneration on the mesoporous surface, and also to load species of interest inside the pores. Adequate control of the synthesis conditions and functionalization of the mesoporous surface are critical factors in the design of new systems that are suitable for use in specific medical applications. Simultaneously, the use of appropriate characterization techniques in the several stages of design and manufacture of mesoporous particles allows us to ascertain the textural, structural and compositional modifications induced during the synthesis, functionalization and post-in vitro assays processes. In this scenario, the present paper shows, through several examples, the role of transmission electron microscopy and associated spectroscopic techniques in the search for useful information in the early design stages of mesoporous systems, with application in the fields of tissue regeneration and drug delivery systems.

Fine structure and properties of defects in naturally occurring silicates and oxides

1990 ◽  
Vol 48 (4) ◽  
pp. 460-461
Author(s):  
David R. Veblen
Keyword(s):  
Chemical Reactions ◽  
High Resolution Electron Microscopy ◽  
Extended Defects ◽  
Single Chain ◽  
Naturally Occurring ◽  
Resolution Electron ◽  
Fine Structures ◽  
Image Simulations ◽  
Similar Crystal Structure

Extended defects and interfaces control many processes in rock-forming minerals, from chemical reactions to rock deformation. In many cases, it is not the average structure of a defect or interface that is most important, but rather the structure of defect terminations or offsets in an interface. One of the major thrusts of high-resolution electron microscopy in the earth sciences has been to identify the role of defect fine structures in reactions and to determine the structures of such features. This paper will review studies using HREM and image simulations to determine the structures of defects in silicate and oxide minerals and present several examples of the role of defects in mineral chemical reactions. In some cases, the geological occurrence can be used to constrain the diffusional properties of defects.The simplest reactions in minerals involve exsolution (precipitation) of one mineral from another with a similar crystal structure, and pyroxenes (single-chain silicates) provide a good example. Although conventional TEM studies have led to a basic understanding of this sort of phase separation in pyroxenes via spinodal decomposition or nucleation and growth, HREM has provided a much more detailed appreciation of the processes involved.

The Role of Muslim Women in Civil Society In Promoting Values and Principles for Building Peace: Action Guide from The Qur’ān

Sains Insani ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 30-36
Author(s):  
Che Amnah Bahari ◽  
Fatimah Abdullah
Keyword(s):  
Civil Society ◽  
Lifelong Learning ◽  
Significant Role ◽  
Textual Analysis ◽  
Muslim Women ◽  
Peace Building ◽  
Analysis Method ◽  
Pluralistic Society ◽  
Women And Children

The whole world, the Muslim in particular has witnessed conflicts in different areas, which have hindered the developmental efforts of the nations concerned. It should be learned that most victims of these conflicts are women and children. This article attempts to elaborate the role of Muslims Women as a crucial segment in civil society in initiating peace building through nurturing process. It maintains that the adoption of the principles and values derived from the Qur’ān and Sunnah of the Prophet is necessary as a process of lifelong learning.  Those identified values constituted the framework of this article and it adopts the textual analysis method.   This article concludes that through the implementation of those values and frameworks for peace building, women as one of the important segments of civil society are able to play significant role towards initiating peace building and promoting peaceful co-existence in pluralistic society. Abstrak: Dunia Islam khususnya telah menyaksikan konflik di pelbagai daerah yang berbeza. Konflik ini telah menghalang usaha kearah pembangunan Kawasan yang berkenaan. Kebanyakan mangsa konflik ini adalah wanita dan kanak-kanak. Artikel ini cuba untuk menghuraikan peranan wanita Islam sebagai segmen penting dalam masyarakat madani dalam membangun proses kedamaian dengan mendidik dan memupuk prinsip dan nilai murni janaan al-Qur’an. Penggunaan prinsip dan nilai yang dikutip dari ayat-ayat Qur'an dan hadis Rasulullah adalah keperluan yang mendesak sebagai wadah bagi proses pembelajaran sepanjang hayat. Nilai-nilai yang dikenal pasti merupakan rangka kerja artikel ini, dan metod yang dirujuk adalah analisis teks. Artikel ini menyimpulkan bahawa melalui pelaksanaan nilai-nilai dan kerangka kerja Islam bagi proses kedamaian, wanita Islam dalam masyarakat madani mampu memainkan peranan penting dalam memulakan pembinaan keamanan dan menggalakkan kehidupan yang harmonis, sejahtera dan saling bantu membantu dalam masyarakat majmuk.

POLICY CHANGE – THE ROLE OF IDEAS AND POLICY ENTREPRENEURS

2018 ◽  
pp. 63-72
Author(s):  
Arwanto Arwanto ◽  
Wike Anggraini
Keyword(s):  
Policy Change ◽  
Significant Role ◽  
Policy Process ◽  
Policy Entrepreneurs ◽  
Multiple Streams ◽  
Policy Makers ◽  
Problem Framing ◽  
Exogenous Factors ◽  
The Relationship

ABSTRACT Understanding policy process involves many distinctive approaches. The most common are institutional, groups or networks, exogenous factors, rational actors, and idea-based approach. This paper discussed the idea-based approach to explain policy process, in this case policy change. It aims to analyse how ideas could assist people to understand policy change. What role do they play and why are they considered as fundamental element? It considers that ideas are belong to every policy actor, whether it is individual or institution. In order to answer these questions, this paper adopts Kingdon’s multi streams approach to analyse academic literatures. Through this approach, the relationship between ideas and policy change can be seen clearer. Ideas only can affect in policy change if it is agreed and accepted by policy makers. Therefore the receptivity of ideas plays significant role and it emerges policy entrepreneurs. They promote ideas (through problem framing, timing, and narrative construction) and manipulate in order to ensure the receptivity of ideas. Although policy entrepreneurs play significant role, political aspects remains the most important element in the policy process. Keywords: policy change, ideas, idea-based approach, Kingdon’s multiple streams, policy entrepreneurs.

Sign in / Sign up

Export Citation Format

Share Document