scholarly journals Ultraviolet Protection Activity of Selected Herbal and Biopolymer for Textile Application

2021 ◽  
Vol 7 (03) ◽  
pp. 80-83
Author(s):  
Dr. Banupriya J and Dr. V Maheshwari
Keyword(s):  
Ultraviolet Radiation ◽  
Research Work ◽  
Herbal Extract ◽  
Ultraviolet Rays ◽  
Ft Ir ◽  
Encapsulation Method ◽  
Ultraviolet Protection ◽  
Chitosan Biopolymer ◽  
Protection Activity ◽  
Finished Sample

The textile protection of human skin against ultraviolet radiation is very important problem and over recent years researches have shown increasing interests in this area. This research work deals with the causing harm effects of ultraviolet rays and protection against them through the woven materials by using Opuntia littoralis herbal extract and Chitosan biopolymer extract with nano encapsulation method. Finishing of fabric with an eco friendly manner is getting very advanced nowadays. So, this research work is fully based on ecofriendly and skin friendly. The samples were imparted with herb and biopolymer nanocapsules which showed best results for ultraviolet protection even after 30 washes.The finished sample was analyzed for its morphology using FESEM and FT-IR.

scholarly journals Ultraviolet Protection Activity of Selected Herbal and Biopolymer for Textile Application

2021 ◽  
Vol 7 (03) ◽  
pp. 80-83
Author(s):  
Dr. Banupriya J and Dr. V Maheshwari
Keyword(s):  
Ultraviolet Radiation ◽  
Research Work ◽  
Herbal Extract ◽  
Ultraviolet Rays ◽  
Ft Ir ◽  
Encapsulation Method ◽  
Ultraviolet Protection ◽  
Chitosan Biopolymer ◽  
Protection Activity ◽  
Finished Sample

The textile protection of human skin against ultraviolet radiation is very important problem and over recent years researches have shown increasing interests in this area. This research work deals with the causing harm effects of ultraviolet rays and protection against them through the woven materials by using Opuntia littoralis herbal extract and Chitosan biopolymer extract with nano encapsulation method. Finishing of fabric with an eco friendly manner is getting very advanced nowadays. So, this research work is fully based on ecofriendly and skin friendly. The samples were imparted with herb and biopolymer nanocapsules which showed best results for ultraviolet protection even after 30 washes.The finished sample was analyzed for its morphology using FESEM and FT-IR.

Solubility Enhancement of Poorly Water-Soluble Antifungal Drug Acyclovir by Nanocrystal Formulation Approach

2018 ◽  
Vol 11 (2) ◽  
pp. 4036-4042
Author(s):  
Prakash Goudanavar ◽  
Ankit Acharya ◽  
Vinay C.H
Keyword(s):  
Chemical Interaction ◽  
Research Work ◽  
Antiviral Drug ◽  
In Vitro Release ◽  
Oral Route ◽  
Water Soluble ◽  
Precipitation Method ◽  
Dsc Studies ◽  
Ft Ir

Administration of an antiviral drug, acyclovir via the oral route leads to low and variable bioavailability (15-30%). Therefore, this research work was aimed to enhance bioavailability of acyclovir by nanocrystallization technique. The drug nanocrystals were prepared by anti-solvent precipitation method in which different stabilizers were used. The formed nanocrystals are subjected to biopharmaceutical characterization including solubility, particle size and in-vitro release. SEM studies showed nano-crystals were crystalline nature with sharp peaks. The formulated drug nanocrystals were found to be in the range of 600-900nm and formulations NC7 and NC8 showed marked improvement in dissolution velocity when compared to pure drug, thus providing greater bioavailability. FT-IR and DSC studies revealed the absence of any chemical interaction between drug and polymers used. 

scholarly journals ISOLATION OF 2-CHLOROBENZIMIDAZOLE FROM MELIA DUBIA LEAF EXTRACT AND ITS STRUCTURAL CHARACTERISATION

2017 ◽  
Vol 9 (10) ◽  
pp. 67 ◽  
Author(s):  
G. Dayana Jeyaleela ◽  
S. Irudaya Monisha ◽  
J. Rosaline Vimala ◽  
A. Anitha Immaculate
Keyword(s):  
Mass Spectrometry ◽  
1H Nmr ◽  
Research Work ◽  
Proton Nuclear Magnetic Resonance ◽  
Resonance Spectroscopy ◽  
Ft Ir ◽  
Uv Visible ◽  
Isolated Compound ◽  
Promising Source

Objective: Natural products from medicinal plants, either as isolated compounds or as standardized plant extracts exhibit promising source of medicinal activity against various diseases. The aim of the present work was to make an attempt of isolation of bioactive principle and characterization of the isolated compound, from the medicinal plant Melia dubaiMethods: The extraction was done by a cold percolation method and the compound was separated and isolated by chromatography technique such as a thin layer chromatography (TLC), column chromatography and high-performance liquid chromatography (HPLC). The isolated compound was crystallized and the structural characterization of the isolated compound was made using UV-Visible, FT-IR, 1H-NMR, GC-MS and MS techniques which confirmed the structure of the isolated compound.Results: The separated and isolated compound was characterized by both physical and spectral methods like Ultraviolet-Visible spectroscopy (UV-Visible), Fourier transform infrared spectroscopy (FT-IR), Proton Nuclear Magnetic Resonance Spectroscopy (1H-NMR), Gas chromatography-mass spectrometry (GC-MS), and Mass spectrometry(MS). Based on the studies, organizational characteristics of one bioactive principle were deciphered. The results revealed that the isolated species is 2-chlorobenzimidazole and it agreed well with the reported value and spectra for 2-chlorobenzimidazole.Conclusion: The above results obtained in this research work clearly indicated the promising occurrence of 2-chlorobenzimidazole in Media dubia plant leaves. The future scope of these studies may guide us to view the biological activity of the isolated compound.

scholarly journals Preliminary Assessment on the Effect of Bentonite and Ibeshe Clay on Bleaching of Rubber (Hevea Brasiliensis) Seed Oil

2019 ◽  
Vol 8 (4) ◽  
pp. 12274-12278
Keyword(s):  
Seed Oil ◽  
Research Work ◽  
Bentonite Clay ◽  
Xrd Analysis ◽  
Rubber Seed Oil ◽  
Physiochemical Properties ◽  
Rubber Seed ◽  
Natural Sense ◽  
Ft Ir ◽  
Removal Of Impurities

Rubber seed though not common known is very rich in its oil yield and over time its importance is becoming more prominent. Bleaching in the natural sense is relative to the removal of impurities from the oil or material. In this research work, Rubber seed oil was bleached using bentonite clay and Ibeshe clay at 0.5M, 1M and 2M concentrations of Hydrochloric acid. Physiochemical properties as well as spectroscopic analysis such as FT-IR and XRD analysis were carried out and aided in obtaining the bleaching efficiency of both clays. The FT-IR results displayed a visible change in the oil after it was bleached with Ibeshe clay but still retained most its functional group when bleached with bentonite clay. At 2M concentration of the acid, the oil bleached with bentonite showed 53% while with Ibeshe clay it remained at 16%. This summarizes that Ibeshe clay has little to no effect on bleaching performance.

scholarly journals Wool Fabric Treated With Eco – Friendly Insect Repellent

2017 ◽  
Vol 25 (0) ◽  
pp. 102-105
Author(s):  
Silva Kreševič Vraz ◽  
Bojana Vončina
Keyword(s):  
Ir Spectroscopy ◽  
Research Work ◽  
Curing Temperature ◽  
Wool Fabric ◽  
Insect Repellent ◽  
Textile Materials ◽  
Separate Treatment ◽  
Ft Ir ◽  
Time Periods ◽  
Ft Ir Spectroscopy

In the research work presented, fabric made of wool was grafted with β-cyclodextrine (β-CD) using 1, 2, 3, 4 butanetetracarboxlic acid (BTCA) as a polyfunctional reagent. To reduce the grafting curing temperature, which could damage the wool fabric if too high, cyanamide (CA) in combination with ammonium dihydrogen phosphat (ADHP) were used as catalysts. The presence of cedar oil applied onto textile materials was determined by ATR FT-IR spectroscopy, as well as estimation of the add-on of cedar oil with the gravimetric approach, respectively. Finally the reduction in moths after being exposed to wool treated with a separate treatment formulation i.e. β-CD, cedar oil, and β-CD in combination with cedar oil was assessed visually after different time periods. Results showed that the wool after being treated with β-CD in combination with cedar oil shows significantly prolonged moth oppression activity compared to the wool treated with cedar oil only.

Synthesis and Characterization of Zirconium Metal Complexes Derived from Benzene-1, 4-dicarboxylic acid

2020 ◽  
Vol 42 (6) ◽  
pp. 919-919
Author(s):  
Hafiz Muhammad Arshad Hafiz Muhammad Arshad ◽  
Shazia Khurshid Shazia Khurshid ◽  
Shahzad Sharif Shahzad Sharif ◽  
Muhammad Ali Muhammad Ali ◽  
Muhammad Dilshad Muhammad Dilshad ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Dicarboxylic Acid ◽  
Terephthalic Acid ◽  
Research Work ◽  
Early Developmental Stage ◽  
Practical Applications ◽  
Secondary Building Units ◽  
Ft Ir ◽  
Zirconium Metal

Amongst organo-metallic frameworks (OMFs), the metallic framework having Zirconium metal indicate fascinating structural properties and excellent stability. Such organo-metallic frameworks (OMFs) function as a potential material for practical application. Even though these particular organo-metallic frameworks are in the early developmental stage but considerable advancements have been carried out recently. We studied the characterization of zirconium-based organo-metallic frameworks. We built Zr-based OMFs by four different synthetic ways. Initially, upgraded preparation under green and commercially feasible conditions has been carried out by modifying Zr-OMFs. Zirconium based OMFs having different structures are then classified and explained based on various organic ligands and zirconium-based secondary building units. We have synthesized the zirconium metal complexes; they have been characterized on the bases of FT-IR and CHNS analyzer. FT-IR results show binding of metal with the Benzene-1, 4-dicarboxylic acid [C6H4 (COOH) 2]. Zirconium metal can bind with the organic substances for the construction of a variety of complexes. From my research work, it is concluded that zirconium metal forms a polymeric complex with terephthalic acid. In which oxygen atoms of Terephthalic acid form bridging structure with the zirconium metal. Our study based on a particular type of OMF is likely expected to present guidance for in-depth exploration of OMFs towards practical applications. It is concluded that the metal-organic frameworks (MOFs) of zirconium metal have many applications in the field of chemistry, biology and other numerous fields of science

Ultraviolet Protection by Beach Shade

2008 ◽  
Author(s):  
Toshimasa Kawanishi ◽  
Yuko Sueda
Keyword(s):  
Skin Cancer ◽  
Ultraviolet Radiation ◽  
Human Body ◽  
Health Problem ◽  
Radiation Spectrum ◽  
Know How ◽  
Skin Immunity ◽  
Ultraviolet Protection ◽  
Radiance Distribution ◽  
Uv C

Ultraviolet radiation is divided into UV-A (320–400nm), UV-B (290–320nm), UV-C (under 290nm). Of these, UV-B may be cause serious health problem, such as cataracts, loss of skin immunity, and increase of skin cancer. For this reason, it is important to know how to protect human body against the UV-B radiation. Beach shade is very effective to prevent the radiation. The radiation enters to the shade from sun and sky. The first step is to measure the sky radiance distribution of sun and sky radiation spectrum. We calculate erythema action radiation from the radiation spectrum. Sunburn chart is made using distribution of the erythema action ultraviolet radiation. Using the Sunburn chart, the shade is designed for protect against the UV radiation.

scholarly journals Impact of Fabric Density, Color and Composition of Plain weave Fabric on Ultraviolet Protective Factor

2019 ◽  
pp. 13-15
Author(s):  
Marzia Islam ◽  
Tarifun Akter ◽  
Jannatul Ferdush ◽  
Kamrunnahar Kamrunnahar
Keyword(s):  
Protective Factor ◽  
Woven Fabric ◽  
Experimental Result ◽  
Ultraviolet Rays ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Fabric Density ◽  
Weave Fabric ◽  
Ultraviolet Protection

In thisstudy, the effect of fabric density and different colors (black and red) on ultraviolet protection factor of woven fabric investigated. The fabric of different composition (100% cotton, 60/40 CVC), two color (black, red) and various density (Ends per inch, Picks per inch) collected. Then UPF rating was measured by spectrophotometer in vitro method. Experimental result showed that higher the fabric density and weight; higher the protection from ultraviolet rays. Besides, it also revealed that black fabric has more UV protection ability than the red one. Another finding of this study is that polyester content increases the UPF value.

scholarly journals Aminolytic Depolymerisation of Polyethylene Terephthalate Wastes using Sn doped ZnO Nanoparticles

2021 ◽  
Author(s):  
Viswanathan Vinitha ◽  
Mani Preeyangha ◽  
Murugan Anbarasu ◽  
Gopal Jeya ◽  
Neppolian Bernaurdshaw ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Soft Drink ◽  
Research Work ◽  
Thermal Method ◽  
Chemical Recycling ◽  
Pet Waste ◽  
Global Environmental Issue ◽  
Vis Spectroscopy ◽  
Ft Ir ◽  
Doped Zno

Abstract Poly(ethylene terephthalate) (PET) is one of the most consumed polymers because of its excellent thermal and mechanical properties. By increasing in PET production and since the disposal of PET waste has growing to be a major global environmental issue each year. Chemical recycling is a most successful method to achieve circular economy in the PET utilizing industries. Current research work aims to complete depolymerization of waste PET from soft drink bottles by the aminolysis method to produce bis (2-hydroxy ethylene) terephthalamide (BHETA) in the presence of Sn doped ZnO. To evaluate catalytic activity, pure and Sn2+ doped ZnO nanoparticles prepared using different Sn2+ molar ratios at 0.5, 1.0 and 2.0 mol% and calcined at 500 0C for 1h. The synthesized catalysts characterised using FT-IR, XRD, and UV-vis spectroscopy. The surface morphology and percentage doping obtained from SEM and SEM-EDS, respectively. We have observed a reduction in optical band gap and crystallite size of ZnO due to tin doping. Aminolytic depolymerization of PET waste using ethanolamine promoted by Sn doped ZnO effectively under conventional thermal method. Increase in the yield of the BHETA observed with respect to increasing doping percentage of Sn and 1-2 mol% Sn doped ZnO nanoparticles afforded over 90% of BHETA. Structure and purity of BHETA, depolymerised product characterized by FT-IR, 1HNMR, 13C NMR, and MS.

scholarly journals Microwave assisted green synthesis of pharmaceutically potent benzoxanthone analogues employing biodegradable oxalic acid as ecofriendly catalyst

2019 ◽  
Vol 9 (5) ◽  
pp. 4311-4316
Keyword(s):  
Oxalic Acid ◽  
Research Work ◽  
Aromatic Aldehydes ◽  
Water Medium ◽  
Spectroscopic Techniques ◽  
Green Catalyst ◽  
Green Approach ◽  
Microwave Irradiations ◽  
Ft Ir ◽  
Good Percentage

The aim of the present research work is to develop an efficient and ecofriendly methodology to synthesize benzoxanthones analogs by employing oxalic acid as nontoxic, biodegradable catalyst in water medium. The reactions were carried out under microwave irradiations. Thus hereby a series of benzoxanthones were synthesized from various aromatic aldehydes of varying electronic natures via a complete green approach where microwave irradiation was used as an efficient green source of energy, oxalic acid was employed as green catalyst and water were used as green solvent in all the reactions. The synthesized compounds have given a good percentage of yield of all the products and they were characterized by melting point, FT-IR, H1-NMR C13-NMR and mass spectroscopic techniques.

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