scholarly journals Mucilage: A Rich Source of Excipients Present in Plant Parts with Gold Status

2020 ◽  
Vol 11 (3) ◽  
pp. 4365-4371
Author(s):  
Ganesh N. Sharma ◽  
Mayur R. Bhurat ◽  
Upendra B. Gandagule ◽  
Virendra Shrivastava
Keyword(s):  
Drug Delivery ◽  
Uronic Acids ◽  
Plant Materials ◽  
Pharmaceutical Excipients ◽  
Plant Parts ◽  
Pharmaceutical Application ◽  
Large Numbers ◽  
Viscous Solution ◽  
Increasing Demand ◽  
Plant Sources

Large numbers of pharmaceutical excipients of natural origin are available nowadays. Plant materials like mucilages with a variety of pharmaceutical applications are most common. They are being used due to their abundance, safety, compatibility, cost-effectiveness and eco-friendly nature as compared to synthetic one and have various advantages over synthetic polymers. To compete with and replace artificial excipients mucilages can be modified in many ways to obtain the required form of a drug delivery system. Currently, there are a vast amount of natural pharmaceutical excipients are there, and due to its increasing demand, it has become essential to identify or explore more plant mucilage sources to fulfil the industrial need. Mucilages are polymeric mono-saccharides or mixed mono-saccharides combined with uronic acids. On hydrolysis, they yield a mixture of sugars and uronic acids, and the mucilages that are obtained from plant sources have translucent and amorphous nature. Due to presence of hydrophilic moieties in mucilages, they can easily combine with water to form a gel or a thick viscous solution, and these extracted mucilages from the plant can be processed to a certain extent and incorporated in dosage forms to achieve the specific performance of the formulation. In this review, we describe isolation, characterization, pharmaceutical application and methods of modification to develop drug delivery systems.

Chitosan-based Polymer Matrix for Pharmaceutical Excipients and Drug Delivery

2019 ◽  
Vol 26 (14) ◽  
pp. 2502-2513 ◽  
Author(s):  
Md. Iqbal Hassan Khan ◽  
Xingye An ◽  
Lei Dai ◽  
Hailong Li ◽  
Avik Khan ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Drug Carrier ◽  
Drug Loading ◽  
Delivery Systems ◽  
Cancer Drug ◽  
Release Mechanism ◽  
Innovative Drug ◽  
Pharmaceutical Excipients ◽  
Weight Variation

The development of innovative drug delivery systems, versatile to different drug characteristics with better effectiveness and safety, has always been in high demand. Chitosan, an aminopolysaccharide, derived from natural chitin biomass, has received much attention as one of the emerging pharmaceutical excipients and drug delivery entities. Chitosan and its derivatives can be used for direct compression tablets, as disintegrant for controlled release or for improving dissolution. Chitosan has been reported for use in drug delivery system to produce drugs with enhanced muco-adhesiveness, permeation, absorption and bioavailability. Due to filmogenic and ionic properties of chitosan and its derivative(s), drug release mechanism using microsphere technology in hydrogel formulation is particularly relevant to pharmaceutical product development. This review highlights the suitability and future of chitosan in drug delivery with special attention to drug loading and release from chitosan based hydrogels. Extensive studies on the favorable non-toxicity, biocompatibility, biodegradability, solubility and molecular weight variation have made this polymer an attractive candidate for developing novel drug delivery systems including various advanced therapeutic applications such as gene delivery, DNA based drugs, organ specific drug carrier, cancer drug carrier, etc.

scholarly journals Humane Slaughter of Edible Decapod Crustaceans

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1089
Author(s):  
Francesca Conte ◽  
Eva Voslarova ◽  
Vladimir Vecerek ◽  
Robert William Elwood ◽  
Paolo Coluccio ◽  
...  
Keyword(s):  
Cognitive Capacity ◽  
Decapod Crustaceans ◽  
The Public ◽  
Large Numbers ◽  
Increasing Demand

Vast numbers of crustaceans are produced by aquaculture and caught in fisheries to meet the increasing demand for seafood and freshwater crustaceans. Simultaneously, the public is increasingly concerned about current methods employed in their handling and killing. Recent evidence has shown that decapod crustaceans probably have the capacity to suffer because they show responses consistent with pain and have a relatively complex cognitive capacity. For these reasons, they should receive protection. Despite the large numbers of crustaceans transported and slaughtered, legislation protecting their welfare, by using agreed, standardized methods, is lacking. We review various stunning and killing systems proposed for crustaceans, and assess welfare concerns. We suggest the use of methods least likely to cause suffering and call for the implementation of welfare guidelines covering the slaughter of these economically important animals.

Recent Applications of Nanoemulsion Based Drug Delivery System: A Review

2021 ◽  
pp. 2852-2858
Author(s):  
Asif Eqbal ◽  
Vaseem Ahamad Ansari ◽  
Abdul Hafeez ◽  
Farogh Ahsan ◽  
Mohd Imran ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Transdermal Drug Delivery ◽  
Therapeutic Agents ◽  
Topical Drug Delivery ◽  
Transdermal Drug Delivery System ◽  
Small Droplet ◽  
Pharmaceutical Application ◽  
System A

Nanoemulsions are drug transporters for the delivery of therapeutic agents. They possess the small droplet size having the range of 20×10-9-200×10-9m. The main purpose of using Nanoemulsion is to enhance the drug bio- availability of transdermal drug delivery system. With the help of phase diagram, we can select the components of nanoemulsion depending upon formulas ratio of oil phase, surfactant/co-surfactant and water phase. Nanoemulsion directly used as a topical drug delivery in skin organs. The most useable pharmaceutical application has been developed till date to provide systemic effects to penetrating the full thickness of skin organ layer nanoemulsions can be administered through variety of routes such as percutaneous, perioral, topical, transdermal, ocular and parental administration of medicaments. Nanoemulsions are transparent and slightly opalescent. Nanoemulsion can be prepared through various methods. Nanoemulsions are transparent and slightly opalescent. Factor affecting nanoemulsions are surfactant, viscosity, lipophilic, drug content, pH, concentration of each component, and methodology of formulation. It is unfeasible to test all factors at the various levels. Design of formulation when it comes to experimental design it gives an excellent approach through reducing the time and money.

Nanomaterials for the delivery of Herbal Bioactive Compounds

2021 ◽  
Vol 17 ◽  
Author(s):  
Shadma Wahab ◽  
Md. Parwez Ahmad ◽  
Arshad Hussain ◽  
Shaik Fayazuddin Abdul Qadir
Keyword(s):  
Drug Delivery ◽  
Bioactive Compounds ◽  
Targeted Drug Delivery ◽  
Herbal Medicines ◽  
Herbal Drugs ◽  
Herbal Extracts ◽  
Significant Component ◽  
Pharmaceutical Application ◽  
Low Solubility ◽  
Insight Into

: Nanotechnology is a multidisciplinary domain that involves overlapping of areas such as nonanomaterials, nanoelectronics, and nanobiotechnology. Herbal medicine is a significant component of traditional medicine and has been a treatment part of many diseases. Asian peoples are using these herbal medicines for decades. Still, herbal extracts' therapeutic efficacy and pharmaceutical application are associated with many factors such as poor bioavailability, low solubility, permeability, and lack of targeting potential. In the present work, we have reviewed thriving strategies for the targeted drug delivery of phytoconstituents and critically explain the most recent progressions on emerging novel nanophytomedicine-based materials as herbal medicines carriers. Nanotechnology-based clinical trial studies targeting herbal bioactive compounds were discussed. Advancements in nanotechnology-based drug delivery systems intended to enhance cellular uptake, improved pharmacokinetics and effectiveness of herbal drugs have facilitated the powerful targeting of specific agents against diseases. This review provides insight into current progress and future opportunities for nanomedicines as potential curative targets for the delivery of herbal bioactive compounds. This information could be used as platforms for the future expansion of multi-functional nano constructs for the advanced detection of diseases and functional drug delivery of phytoconstituents.

scholarly journals Evaluation of the Efficacy of Plant Materials for the Control of Flea Beetles Podagrica spp on Okra Abelmoschus esculentus L

2021 ◽  
Vol 25 (4) ◽  
pp. 529-535
Author(s):  
S. Danjuma ◽  
I. Muhammed ◽  
G. Yahaya
Keyword(s):  
Fine Particles ◽  
Short Interval ◽  
Flea Beetle ◽  
Plant Materials ◽  
Plant Parts ◽  
Whatman Filter Paper ◽  
Synthetic Chemicals ◽  
Zanthoxylum Zanthoxyloides ◽  
African Locust Bean ◽  
Better Than

The efficacy of the Senegal prickly-ash Zanthoxylum zanthoxyloides (Lam.) roots and the African locust bean tree Parkia biglobosa (Jacq.) pod back was study for their efficacy in the control of okra pest, Podagrica spp. The study was carried out in the laboratory and on the field in the farming season of 2018. Z. zanthoxyloides roots were obtained from Jima-Doko forest and P. biglibosa fruit back from Takunpara. Both plant materials were air-dried under shade for 120 hours. Both plant parts were pounded separately in wooden mortar with the aid of wooden pestle until the materials turns to fine particles. Determined weight of 100, 150, 200, 250, and 300 grams were taken for each plant materials and soaked in water for 24 hours and stirred at intervals of an hour. The mixture were then sieved with a muslin cloth and filtered with Whatman filter paper to eliminate all finest particles of varying sizes. These concentrations were applied individually on 10 adults of Podagrica spp. in the laboratory. It was observed that the concentration of 200 – 300g performed better for both plant materials in the control of okra flea beetle. These resulted to the death of above 50% of the insect within 2 hours. These significant laboratory trials were then formulated and taken to the field. Both plant materials acted as anti-feedants and repellants against Podagrica spp. It was also revealed that Z. zanthoxyloides performed significantly (p<0.05) better than the P. biglibosa. Furthermore, short interval applications (<or=3days) of these plant materials could be a good  replacement for synthetic chemicals, hence bio-pesticides that could be adopted for organic agriculture.

scholarly journals A REVIEW ON FAST DISSOLVING TABLET

2018 ◽  
Vol 8 (5) ◽  
pp. 50-55 ◽  
Author(s):  
RD Rahane ◽  
Punit R. Rachh
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Patient Compliance ◽  
Delivery System ◽  
New Technologies ◽  
Oral Drug Delivery ◽  
Oral Drug ◽  
Preparation Methods ◽  
Orally Disintegrating Tablets ◽  
Increasing Demand

The convenience of administration and improved patient compliance are important in the design of oral drug delivery system which remains the preferred route of drug delivery inspite of various disadvantages. Fast disintegrating tablets (FDTs) have received ever-increasing demand during the last decade, and the field has become a rapidly growing area in the pharmaceutical industry. The popularity and usefulness of the formulation resulted in development of several FDT technologies. These techniques render the disintegration of tablet rapidly and dissolve in mouth in five seconds without chewing and the need of water which is advantageous mainly for pediatrics, geriatrics and patients having difficulty in swallowing tablets and capsules. Formulation of a convenient dosage form for administration, by considering swallowing difficulty and poor patient compliance, leads to development of orally disintegrating tablets. Conventional preparation methods are spray drying, freeze drying, direct compression, Molding, and sublimation while new technologies have been developed for the production of orodispersible tablets. Keywords: Fast Dissolving Tablet, drug delivery system, fast disintegrating, fast melting.

A new method to obtain good anatomical slides of heterogeneous plant parts

IAWA Journal ◽  
2010 ◽  
Vol 31 (4) ◽  
pp. 373-383 ◽  
Author(s):  
Antonio C. F. Barbosa ◽  
Marcelo R. Pace ◽  
Luciana Witovisk ◽  
Veronica Angyalossy
Keyword(s):  
Butyl Acetate ◽  
New Method ◽  
Tree Bark ◽  
Adhesive Tape ◽  
Polystyrene Foam ◽  
Plant Materials ◽  
Plant Parts ◽  
Hard Tissues ◽  
Cambial Variants

A new method is presented to prepare anatomical slides of plant materials including a combination of soft and hard tissues, such as stems with cambial variants, arboreal monocotyledons, and tree bark. The method integrates previous techniques aimed at softening the samples and making them thereby more homogeneous, with the use of anti-tearing polystyrene foam solution. In addition, we suggest two other alternatives to protect the sections from tearing: adhesive tape and/or Mayer’s albumin adhesive, both combined with the polystyrene foam solution. This solution is cheap and easy to make by dissolving any packaging polystyrene in butyl acetate. It is applied before each section is cut on a sliding microtome and ensures that all the tissues in the section will hold together. This novel microtechnical procedure will facilitate the study of heterogeneous plant portions, as shown in some illustrated examples.

Nanoparticles for Drug Delivery: Review of the Formulation and Process Difficulties Illustrated by the Emulsion-Diffusion Process

2006 ◽  
Vol 6 (9) ◽  
pp. 2664-2681 ◽  
Author(s):  
D. Moinard-Checot ◽  
Y. Chevalier ◽  
S. Briançon ◽  
H. Fessi ◽  
S. Guinebretière
Keyword(s):  
Drug Delivery ◽  
Diffusion Process ◽  
Process Development ◽  
Colloidal Suspensions ◽  
Polymeric Membrane ◽  
Physical Mechanisms ◽  
Pharmaceutical Application ◽  
Simple Scaling ◽  
Soft Particles

The elaboration of nanoparticles aqueous suspensions aimed at the drug delivery and related process development appear as difficult tasks, due to specificities related to the nanometric size. Such small sizes are required for specific applications in pharmacy. The switch of micrometric to nanometric field represents an actual challenge and cannot be considered as a simple scaling-down of chemical engineers. Ideas and concepts developed first in nanosciences have been adapted to the pharmaceutical application in drug delivery. In spite of drastic constraints due to pharmaceutical application, some parameters allow the control. A brief and not exhaustive review of the state-of-the-art on polymer particles used in the drug delivery field is presented. Attention was more particularly paid on preparation processes and their constraints by describing advantages and drawbacks of each process. The adaptation to the pharmaceutical field, the difficulties and pitfalls which are shared, with most research works in nanoscience, are illustrated thanks to our own results on nanocapsules obtained by "emulsion-diffusion" process presented as a case-study. Thanks to these results, we illustrate the peculiar features and difficulties encountered regarding nanocapsules preparation and characterization. Indeed, such a process allows to prepare nanocapsules of few hundreds nanometers diameter having an oil core surrounded by a polymeric membrane. The characterization of such soft particles colloidal suspensions is often difficult and involves heavy investigation techniques in order to highlight physical mechanisms leading to the nanocapsule properties. This is a key step regarding the final properties as a drug delivery system.

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