scholarly journals Marine Algae Polysaccharides as Basis for Wound Dressings, Drug Delivery, and Tissue Engineering: A Review

2020 ◽  
Vol 8 (7) ◽  
pp. 481 ◽  
Author(s):  
Tatyana A. Kuznetsova ◽  
Boris G. Andryukov ◽  
Natalia N. Besednova ◽  
Tatyana S. Zaporozhets ◽  
Andrey V. Kalinin
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Regenerative Medicine ◽  
Wound Dressing ◽  
Biological Properties ◽  
Wound Dressings ◽  
Tissue Engineering Scaffolds ◽  
Treatment Of Wounds ◽  
New Generation ◽  
Dressing Materials

The present review considers the physicochemical and biological properties of polysaccharides (PS) from brown, red, and green algae (alginates, fucoidans, carrageenans, and ulvans) used in the latest technologies of regenerative medicine (tissue engineering, modulation of the drug delivery system, and the design of wound dressing materials). Information on various types of modern biodegradable and biocompatible PS-based wound dressings (membranes, foams, hydrogels, nanofibers, and sponges) is provided; the results of experimental and clinical trials of some dressing materials in the treatment of wounds of various origins are analyzed. Special attention is paid to the ability of PS to form hydrogels, as hydrogel dressings meet the basic requirements set out for a perfect wound dressing. The current trends in the development of new-generation PS-based materials for designing drug delivery systems and various tissue-engineering scaffolds, which makes it possible to create human-specific tissues and develop target-oriented and personalized regenerative medicine products, are also discussed.

scholarly journals Antibacterial cellulose-based aerogels for wound healing application: A review

2020 ◽  
Vol 7 (10) ◽  
pp. 4032-4040
Author(s):  
Esam Bashir Yahya ◽  
Marwa Mohammed Alzalouk ◽  
Khalifa A. Alfallous ◽  
Abdullah F. Abogmaza
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Wound Healing ◽  
Wound Dressing ◽  
Biomedical Applications ◽  
Inorganic Materials ◽  
Medical Applications ◽  
Tissue Engineering Scaffolds

Aerogels have been steadily developed since its first invention to become one of the most promising materials for various medical and non-medical applications. It has been prepared from organic and inorganic materials, in pure forms or composites. Cellulose-based aerogels are considered one of the promising materials in biomedical applications due to their availability, degradability, biocompatibility and non-cytotoxicity compared to conventional silica or metal-based aerogels. The unique properties of such materials permit their utilization in drug delivery, biosensing, tissue engineering scaffolds, and wound dressing. This review presents a summary of aerogel development as well as the properties and applications of aerogels. Herein, we further discuss the recent works pertaining to utilization of cellulose-based aerogels for antibacterial delivery.

scholarly journals Biocompatible and biodegradable wound dressings on the basis of seaweed polysaccharides (review of literature)

2020 ◽  
Vol 179 (4) ◽  
pp. 109-115
Author(s):  
T. A. Kuznetsova ◽  
N. N. Besednova ◽  
V. V. Usov ◽  
B. G. Andryukov
Keyword(s):  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Wound Dressing ◽  
Biological Properties ◽  
Wound Dressings ◽  
Review Of Literature ◽  
Clinical Tests ◽  
Physicochemical And Biological Properties ◽  
Treatment Of Wounds

The review presents the characteristics of modern biocompatible and biodegradable wound dressings on the basis of seaweed polysaccharides (carrageenans of red algae, fucoidans and alginates of brown algae, ulvans of green algae) and notes the key physicochemical and biological properties that are important for constructing wounds dressings. There are information on various types of wound dressings and results of experimental and clinical tests of dressings in the treatment of wounds of various origins. Particular attention is paid to hydrogel dressings, since hydrogels meet the basic requirements for an ideal wound dressing, and many marine polysaccharides are able to form hydrogels.

scholarly journals An Update on Graphene-Based Nanomaterials for Neural Growth and Central Nervous System Regeneration

2021 ◽  
Vol 22 (23) ◽  
pp. 13047
Author(s):  
Maria Grazia Tupone ◽  
Gloria Panella ◽  
Michele d’Angelo ◽  
Vanessa Castelli ◽  
Giulia Caioni ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Regenerative Medicine ◽  
Smart Materials ◽  
Biological Properties ◽  
Neural Connections ◽  
Research Areas ◽  
Neural Growth

Thanks to their reduced size, great surface area, and capacity to interact with cells and tissues, nanomaterials present some attractive biological and chemical characteristics with potential uses in the field of biomedical applications. In this context, graphene and its chemical derivatives have been extensively used in many biomedical research areas from drug delivery to bioelectronics and tissue engineering. Graphene-based nanomaterials show excellent optical, mechanical, and biological properties. They can be used as a substrate in the field of tissue engineering due to their conductivity, allowing to study, and educate neural connections, and guide neural growth and differentiation; thus, graphene-based nanomaterials represent an emerging aspect in regenerative medicine. Moreover, there is now an urgent need to develop multifunctional and functionalized nanomaterials able to arrive at neuronal cells through the blood-brain barrier, to manage a specific drug delivery system. In this review, we will focus on the recent applications of graphene-based nanomaterials in vitro and in vivo, also combining graphene with other smart materials to achieve the best benefits in the fields of nervous tissue engineering and neural regenerative medicine. We will then highlight the potential use of these graphene-based materials to construct graphene 3D scaffolds able to stimulate neural growth and regeneration in vivo for clinical applications.

scholarly journals Emerging Role of Hydrogels in Drug Delivery Systems, Tissue Engineering and Wound Management

Pharmaceutics ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 357
Author(s):  
Shery Jacob ◽  
Anroop B. Nair ◽  
Jigar Shah ◽  
Nagaraja Sreeharsha ◽  
Sumeet Gupta ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Wound Dressing ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Advantages And Disadvantages ◽  
Different Types ◽  
Dressing Materials ◽  
Wound Dressing Materials

The popularity of hydrogels as biomaterials lies in their tunable physical properties, ability to encapsulate small molecules and macromolecular drugs, water holding capacity, flexibility, and controllable degradability. Functionalization strategies to overcome the deficiencies of conventional hydrogels and expand the role of advanced hydrogels such as DNA hydrogels are extensively discussed in this review. Different types of cross-linking techniques, materials utilized, procedures, advantages, and disadvantages covering hydrogels are tabulated. The application of hydrogels, particularly in buccal, oral, vaginal, and transdermal drug delivery systems, are described. The review also focuses on composite hydrogels with enhanced properties that are being developed to meet the diverse demand of wound dressing materials. The unique advantages of hydrogel nanoparticles in targeted and intracellular delivery of various therapeutic agents are explained. Furthermore, different types of hydrogel-based materials utilized for tissue engineering applications and fabrication of contact lens are discussed. The article also provides an overview of selected examples of commercial products launched particularly in the area of oral and ocular drug delivery systems and wound dressing materials. Hydrogels can be prepared with a wide variety of properties, achieving biostable, bioresorbable, and biodegradable polymer matrices, whose mechanical properties and degree of swelling are tailored with a specific application. These unique features give them a promising future in the fields of drug delivery systems and applied biomedicine.

scholarly journals Developmental prospectives of new generation super absorbent wound dressing materials from sulfated polysaccharide of marine red algae

2021 ◽  
Vol 23 (09) ◽  
pp. 400-408
Author(s):  
Amruth P ◽  
◽  
Amruth P ◽  
Rosemol Jacob M ◽  
Suseela Mathew ◽  
...  
Keyword(s):  
Wound Dressing ◽  
Antimicrobial Agents ◽  
Wound Care ◽  
Healing Process ◽  
Cost Effective ◽  
Sulfated Polysaccharide ◽  
Wound Dressings ◽  
New Generation ◽  
Dressing Materials ◽  
Wound Dressing Materials

Wound healing remains as a dynamic process and the type of dressing material significantly affects the efficacy of healing. The identification of ideal dressings to use for a particular wound type is an important requisite facilitating the entire process of healing. Chronic, high exudate wounds are dynamic in presentation and remain as a major health care burden. Researchers have sort to design and optimize biodegradable wound dressings that focuses to optimize moisture retentiveness, as superior character in the healing process. In addition, dressings have been designed to visualize the wound bed by improving the optical property, target and kill infection-causing bacteria, with the incorporation of antimicrobial agents, nanomaterials and numerous other measures. For the practitioners, choosing the optimal dressing decreases time to healing, provides cost-effective care and improves patient quality of life. The current mini review highlights the ideal characters of wound dressing materials and presents insights on the superior characters of carrageenan bio composites for prospective advancements in research in the area of wound care and management.

scholarly journals Chitosan and Its Potential Use as a Scaffold for Tissue Engineering in Regenerative Medicine

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Martin Rodríguez-Vázquez ◽  
Brenda Vega-Ruiz ◽  
Rodrigo Ramos-Zúñiga ◽  
Daniel Alexander Saldaña-Koppel ◽  
Luis Fernando Quiñones-Olvera
Keyword(s):  
Tissue Engineering ◽  
Regenerative Medicine ◽  
Biomedical Applications ◽  
Therapeutic Strategy ◽  
Biological Properties ◽  
Natural Polymers ◽  
Tissue Engineering Scaffolds ◽  
Promising Alternative ◽  
Functional Biomaterials ◽  
Potential Use

Tissue engineering is an important therapeutic strategy to be used in regenerative medicine in the present and in the future. Functional biomaterials research is focused on the development and improvement of scaffolding, which can be used to repair or regenerate an organ or tissue. Scaffolds are one of the crucial factors for tissue engineering. Scaffolds consisting of natural polymers have recently been developed more quickly and have gained more popularity. These include chitosan, a copolymer derived from the alkaline deacetylation of chitin. Expectations for use of these scaffolds are increasing as the knowledge regarding their chemical and biological properties expands, and new biomedical applications are investigated. Due to their different biological properties such as being biocompatible, biodegradable, and bioactive, they have given the pattern for use in tissue engineering for repair and/or regeneration of different tissues including skin, bone, cartilage, nerves, liver, and muscle. In this review, we focus on the intrinsic properties offered by chitosan and its use in tissue engineering, considering it as a promising alternative for regenerative medicine as a bioactive polymer.

N-succinyl chitosan preparation, characterization, properties and biomedical applications: a state of the art review

2015 ◽  
Vol 31 (6) ◽  
Author(s):  
Shahid Bashir ◽  
Yin Yin Teo ◽  
S. Ramesh ◽  
K. Ramesh ◽  
Amir Azam Khan
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Protein Delivery ◽  
State Of The Art ◽  
Transfection Efficiency ◽  
Aqueous Solubility ◽  
Biological Properties ◽  
Wound Dressings ◽  
Comprehensive Overview ◽  
Biomedical Field

AbstractN-succinyl chitosan (NSC) remains a promising chitosan derivative to develop targeted drug delivery, wound dressings, and tissue engineering systems. All these systems are important in life sciences. NSC is an amphiprotic derivative obtained from the N-acylation of chitosan. NSC exhibits extraordinary biocompatibility, significantly increased aqueous solubility in acidic and basic media without affecting the biological properties, appreciable transfection efficiency, and the ability to stimulate osteogenesis. NSC shows enhanced bioavailability, which highlights its potential applications in the biomedical field. This review briefly introduces chitosan, including its limitations as a biomaterial, and modifications of chitosan with a particular focus on acylation, along with a comprehensive overview of the synthesis, characterization, properties, biodistribution, and toxicological/biopharmaceutical profile of NSC. Furthermore, it extensively surveys current state-of-the-art NSC-based formulations for drug delivery with special emphasis on protein delivery, anti-cancer activity in the colon, as well as nasal and ophthalmic targeted gene/drug delivery. Moreover, it discusses NSC-based biomaterial applications in articular, adipose, and bone tissue engineering. In addition, it describes recent contributions of NSC-based hydrogels in wound dressings along with a brief account of drug delivery in combination with tissue engineering. Finally, it presents potential current challenges and future perspectives of NSC-based formulations in the biomedical field.

Recent Insights on Biomedical Applications of Bacterial Cellulose based Composite Hydrogels

2021 ◽  
Vol 28 ◽  
Author(s):  
Wei Liu ◽  
Haishun Du ◽  
Ting Zheng ◽  
Chuanling Si
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Bacterial Cellulose ◽  
High Purity ◽  
Biomedical Applications ◽  
3D Structure ◽  
Wound Dressings ◽  
Tissue Engineering Scaffolds ◽  
Composite Hydrogels ◽  
Good Biocompatibility

Background: Bacterial cellulose (BC) and its derivatives are a rich source of renewable natural ingredients, which are of great significance for biomedical and medical applications but have not yet been fully exploited. BC is a high-purity, biocompatible, and versatile biomaterial that can be used alone or in combination with other ingredients such as polymers and nanoparticles to provide different structural organization and function. This review briefly introduces the research status of BC hydrogels, focusing on the preparation of BC based composite hydrogels and their applications in the field of biomedicine, particularly the wound dressings, tissue engineering scaffolds, and drug delivery. Methods: By reviewing the most recent literature on this subject, we summarized recent advances in the preparation of BC based composite hydrogels and their advances in biomedical applications, including wound dressings, tissue engineering, and drug delivery. Results: BC composite hydrogels have broadened the field of application of BC and developed a variety of BC-based biomaterials with excellent properties. BC-based hydrogels have good biocompatibility and broad application prospects in the biomedical field. Conclusion: BC based composite hydrogels with the advantages of 3D structure, non-toxicity, high purity, and good biocompatibility, have great prospects in the development of sustainable and multifunctional biomaterials for biomedical applications.

scholarly journals Application of polymer in biomedical implication

2021 ◽  
Vol 14 (2) ◽  
pp. 098-114
Author(s):  
Meheta Datta ◽  
Kazi Madina Maraz ◽  
Naziza Rahman ◽  
Ruhul A. Khan
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Physical Properties ◽  
Biomedical Applications ◽  
Polymeric Materials ◽  
High Strength ◽  
Wound Dressings ◽  
Tissue Engineering Scaffolds ◽  
Great Demand ◽  
External Stimuli

Polymers are serving the mankind in various ways since long. Over the previous number of years, these polymers have found great demand in various domains. These materials are intensively studied over the years for a various range of applications Polymeric materials have found notable applications within the sphere of biomedical. This might ensue to their useful properties, such as: easy processing, lightweight and suppleness, high strength to weight, availability and recyclability. Polymeric materials also are able to alter their chemical or physical properties upon exposure to external stimuli. Thanks to these properties, they're widely applied for biomedical applications like drug delivery, tissue engineering scaffolds, wound dressings, and antibacterial coatings.

Novel tissue engineering scaffolds as wound dressings loaded with Alkannins/Shikonins as active ingredients

2019 ◽  
Author(s):  
AS Arampatzis ◽  
K Theodoridis ◽  
E Aggelidou ◽  
KN Kontogiannopoulos ◽  
I Tsivintzelis ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Wound Dressings ◽  
Active Ingredients ◽  
Tissue Engineering Scaffolds
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