Hydrogels,
introduction,
historical background,
properties,
classification,
difference between chemical and physical hydrogels,
common uses,
pharmaceutical applications,
preparation methods,
list of monomers used,
analytical machines,
advantages,
disadvantages,
conclusion
this ppt is about hydrogel.A hydrogel is a three-dimensional(3D) network of hydrophilic polymers that can swell in water and hold a large amount of water while maintaining the structure due to chemical or physical cross-linking of individual polymer chains. applications Flexibility of hydrogels, which is because of their water content, makes it possible to use them in different condition ranging from industrial to biological fields
Hydrogels,
introduction,
historical background,
properties,
classification,
difference between chemical and physical hydrogels,
common uses,
pharmaceutical applications,
preparation methods,
list of monomers used,
analytical machines,
advantages,
disadvantages,
conclusion
this ppt is about hydrogel.A hydrogel is a three-dimensional(3D) network of hydrophilic polymers that can swell in water and hold a large amount of water while maintaining the structure due to chemical or physical cross-linking of individual polymer chains. applications Flexibility of hydrogels, which is because of their water content, makes it possible to use them in different condition ranging from industrial to biological fields
Hydrogels are cross-linked, three dimensional, hydrophilic polymeric networks with the ability to hold large amount of water within its porous structure.
Hydrogels are three-dimensional network of hydrophilic cross-linked polymer that do not dissolve but can swell in water or can respond to the fluctuations of the environmental stimuli
Hydrogels are highly absorbent (they can contain over 90% water) natural or synthetic polymeric networks
Hydrogels also possess a degree of flexibility very similar to natural tissue, due to their significant water content
Polymeric micelle formation , mechanism , Case study , applications , Factors affecting formation of Polymeric Micelle , Method of preparation , Types of polymers used in Polymeric micelle
Microemulsion is an isotropic mixture of oil, surfactant, Cosurfactant and drug.
Upon mild agitation followed by dilution in aqueous media, such as gastrointestinal (GI) fluids, the systems can form fine oil in water (O/W) Microemulsions which usually have a droplet size less than 100 nm.
Microemulsion have been successfully used to improve the solubility, chemical stability, and oral bioavailability of many poorly water soluble drugs.
They have characteristic properties such as a low interfacial tension, large interfacial area and capacity to solubilize both aqueous and oil-soluble compounds.
Study about Pharmaceutically important cellulose like MIcrocrystalline cellulose etc.It gives an detailed information about MCC-Which grade for which purpose used.
Synthesis, Characterization of Borax Crosslinked Guar Gum Hydrogel and its Ef...ijtsrd
Nonionic nature of guar gum provides an acceptable material for modification, guar gum based hydrogel were synthesized by crosslinking purified guar gum with borax disodium tetraborate, decahydrate at different percentage. Estimation of crosslinked borax has carried out titrimetrically and occurrence of the reaction was confirmed using FT IR spectroscopy, elemental analysis, thermal analysis, scanning electron microscopy and rheologically. To examine reverse demulsification efficiency of different grades of hydrogel, a crude oil in water emulsion sample was studied by a modified jar test method. The efficiency of the test materials was compared with the Industrial Reverse Demulsifier IRD . The best grades of hydrogel didn’t outperformed industrial reverse demulsifier but at low concentration GCB6 diluted to about 0.3 in a dose of 50ppm a maximum efficiency of 66 was reached. The single step synthesized green product thus exhibited a potential as reverse demulsification agent which can be developed. Ayman Abu Reid | Yousif. A. Ragab | Salih. MAA | Imad. E. A. Mahajoub "Synthesis, Characterization of Borax Crosslinked Guar Gum Hydrogel and its Effect in Treatment of Crude Oil Emulsified Water" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-5 , August 2022, URL: https://www.ijtsrd.com/papers/ijtsrd50675.pdf Paper URL: https://www.ijtsrd.com/chemistry/other/50675/synthesis-characterization-of-borax-crosslinked-guar-gum-hydrogel-and-its-effect-in-treatment-of-crude-oil-emulsified-water/ayman-abu-reid
Hydrogels are cross-linked, three dimensional, hydrophilic polymeric networks with the ability to hold large amount of water within its porous structure.
Hydrogels are three-dimensional network of hydrophilic cross-linked polymer that do not dissolve but can swell in water or can respond to the fluctuations of the environmental stimuli
Hydrogels are highly absorbent (they can contain over 90% water) natural or synthetic polymeric networks
Hydrogels also possess a degree of flexibility very similar to natural tissue, due to their significant water content
Polymeric micelle formation , mechanism , Case study , applications , Factors affecting formation of Polymeric Micelle , Method of preparation , Types of polymers used in Polymeric micelle
Microemulsion is an isotropic mixture of oil, surfactant, Cosurfactant and drug.
Upon mild agitation followed by dilution in aqueous media, such as gastrointestinal (GI) fluids, the systems can form fine oil in water (O/W) Microemulsions which usually have a droplet size less than 100 nm.
Microemulsion have been successfully used to improve the solubility, chemical stability, and oral bioavailability of many poorly water soluble drugs.
They have characteristic properties such as a low interfacial tension, large interfacial area and capacity to solubilize both aqueous and oil-soluble compounds.
Study about Pharmaceutically important cellulose like MIcrocrystalline cellulose etc.It gives an detailed information about MCC-Which grade for which purpose used.
Synthesis, Characterization of Borax Crosslinked Guar Gum Hydrogel and its Ef...ijtsrd
Nonionic nature of guar gum provides an acceptable material for modification, guar gum based hydrogel were synthesized by crosslinking purified guar gum with borax disodium tetraborate, decahydrate at different percentage. Estimation of crosslinked borax has carried out titrimetrically and occurrence of the reaction was confirmed using FT IR spectroscopy, elemental analysis, thermal analysis, scanning electron microscopy and rheologically. To examine reverse demulsification efficiency of different grades of hydrogel, a crude oil in water emulsion sample was studied by a modified jar test method. The efficiency of the test materials was compared with the Industrial Reverse Demulsifier IRD . The best grades of hydrogel didn’t outperformed industrial reverse demulsifier but at low concentration GCB6 diluted to about 0.3 in a dose of 50ppm a maximum efficiency of 66 was reached. The single step synthesized green product thus exhibited a potential as reverse demulsification agent which can be developed. Ayman Abu Reid | Yousif. A. Ragab | Salih. MAA | Imad. E. A. Mahajoub "Synthesis, Characterization of Borax Crosslinked Guar Gum Hydrogel and its Effect in Treatment of Crude Oil Emulsified Water" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-5 , August 2022, URL: https://www.ijtsrd.com/papers/ijtsrd50675.pdf Paper URL: https://www.ijtsrd.com/chemistry/other/50675/synthesis-characterization-of-borax-crosslinked-guar-gum-hydrogel-and-its-effect-in-treatment-of-crude-oil-emulsified-water/ayman-abu-reid
Duplicating and refractory materials used in removable partial/endodontic co...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
contents Glycerol
Oligoglycerol and its types
History
Synthesis of different types of Oligoglycerols
Laboratory preparation & purification
Analysis of composition of Oligoglycerols by GC
Applications
Commercialization
Future Scope
Conclusion
Refrences
DUPLICATING AND REFRACTORY MATERIALS USED IN REMOVABLE PARTIAL DENTURES/ d...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Bone metabolism and calcium homeostasisAhmed Madni
Bone is a metabolically active tissue that undergoes constant remodeling. The major cells involved in the remodeling process are osteoclasts and osteoblasts. Bone metabolism is closely interrelated with the metabolism of calcium, which also involves the intestine and kidney. Calcium balance is hormonally regulated by parathyroid hormone, vitamin D metabolites and calcitonin.
Nanopore sequencing is a unique, scalable technology that enables direct, real-time analysis of long DNA or RNA fragments. It works by monitoring changes to an electrical current as nucleic acids are passed through a protein nanopore. The resulting signal is decoded to provide the specific DNA or RNA sequence.
This presentation gives a comprehensive detail of transgenic animal, processes involve in the production of transgenic animal and also highlights several benefits of transgenic animal
ARGOS8 variants generated by CRISPR-Cas9 improve maize grain yield under field...Ahmed Madni
Maize ARGOS8 is a negative regulator of ethylene responses. A previous study has shown that
transgenic plants constitutively overexpressing ARGOS8 have reduced ethylene sensitivity and
improved grain yield under drought stress conditions. To explore the targeted use of ARGOS8
native expression variation in drought-tolerant breeding, a diverse set of over 400 maize inbreds
was examined for ARGOS8 mRNA expression, but the expression levels in all lines were less than
that created in the original ARGOS8 transgenic events. We then employed a CRISPR-Cas-enabled
advanced breeding technology to generate novel variants of ARGOS8. The native maize GOS2
promoter, which confers a moderate level of constitutive expression, was inserted into the
50-untranslated region of the native ARGOS8 gene or was used to replace the native promoter of
ARGOS8. Precise genomic DNA modification at the ARGOS8 locus was verified by PCR and
sequencing. The ARGOS8 variants had elevated levels of ARGOS8 transcripts relative to the
native allele and these transcripts were detectable in all the tissues tested, which was the
expected results using the GOS2 promoter. A field study showed that compared to the WT, the
ARGOS8 variants increased grain yield by five bushels per acre under flowering stress conditions
and had no yield loss under well-watered conditions. These results demonstrate the utility of the
CRISPR-Cas9 system in generating novel allelic variation for breeding drought-tolerant crops.
How to approach supervisors for research opportunitiesAhmed Madni
In this article, tips for contacting potential supervisors, what to expect from them and how to approach them for research opportunities are provided . With appropriate planning, you will be surprised by the number of prestigious academics who would be willing for you to join their research group, and to get you involved in a research project.
Direct Lineage Reprogramming: Novel Factors involved in Lineage ReprogrammingAhmed Madni
Direct linage reprogramming has got a major focus in biomedical field. The production of specific functional cell type from totally different cell lineage is called lineage reprogramming. In other words, it is induction of functional cell type from another linage without passing through intermediate stage of pluripotent.
Hormones are chemicals made in the body. They control how cells and organs work. With respect to hormone therapies, the only significant factor is whether the molecular structure of the replacement hormone exactly matches that of the natural hormone it is replacing. Our body identifies them as human-identical hormones and metabolizes them just as if our body had made them. As information about BHRT became available, interest in BHRT increased significantly. Now a day, Pharmaceutical companies are producing the hormone based drug which is containing same molecular formula but having different brand names. And their delivery to the body is also different.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
3. Hydrogel
o Hydro-gels are polymeric material
o It acts very similar to natural tissue due to
their large water content
3
4. o Natural polymers, extracted from the guar seeds
o An edible low-cost polymer
o Water-soluble polyhydroxy polysaccharide
o A raw material for the preparation of smart
wearable hydrogels
Guar Gum Hydrogel
4
5. Objective(s) of Current Study
5
o Borax-cross-linked GG hydrogels are very brittle,
and have weak flexibility, slow self-healing effect,
and poor low temperature tolerance
o To overcome the above mentioned problems in
Borax-crosslinked GG Hydrogel using facile method
12. Swelling Analysis
Figure 2. (b) Swelling properties of wet GG-glycerol hydrogel and GG
hydrogel in standard saline solution (0.9% NaCl) at room temperature.
12
15. Injectable Property
Figure 4. (b) Syringe injection of different shapes and variation of viscosity
in variable frequency scanning of GG-glycerol hydrogel.
15
17. Antifreeze Property
17
Figure 7. (a) Deionized water and water glycerol mixture solution (volume
ratio 9:1) for freezing at −16 °C for 4 h. (b) Before and after GG hydrogel
and GG-glycerol hydrogel for freezing at −16 °C for 1 h.
19. Self-Adhesive and Strain-Sensitive
Properties
19
Figure 9. (a) Self-adhesion of the transparent GG-glycerol hydrogel film. (b) Strain
sensitive detection model. (c) Relative resistance changes of the GG-glycerol
hydrogel sensor. The insets show the hydrogel strain sensor adhered onto the finger
straightening and bending.
20. o No biological function is assessed
Constrain(s) in Current Study
20
21. o Self-adhesive hydrogel dressings
o 3D-printing
o Drug delivery
o Artificial electronic skin
Future Prospects
21
22. Reference
Pan, X., Wang, Q., Ning, D., Dai, L., Liu, K., Ni, Y.,
Chen, L., & Huang, L. (2018). Ultraflexible Self-
Healing Guar Gum-Glycerol Hydrogel with
Injectable, Antifreeze, and Strain-Sensitive
Properties. ACS Biomaterials Science &
Engineering, 4(9), 3397-3404.
22
Hydro-gels are polymeric material that exhibits potential to swell and retain a significant fraction of water within its structure, but will not dissolve in water
Therefore, it possess a degree of flexibility very similar to natural tissue due to their large water content
By reducing the water content.
An LCR meter is a type of electronic test equipment used to measure the inductance (L), capacitance (C), and resistance (R) of an electronic component.
Hydrogels with poor stretching ability are difficult to withstand mechanical deformation and then stably move deformation into an electrical signal.
Glycerol forms strong hydrogen bond with the water molecule thus disrupt the formation of ice crystal lattice