http://localhost:8080/xmlui/handle/123456789/952 2026-04-30T01:52:43Z http://localhost:8080/xmlui/handle/123456789/1102 Modification and Improvement of Fe 3 O 4 - Embedded Poly(thiophene) Core/Shell Nanoparticles for Cadmium Removal by Cloud Point Extraction Sadeghipour, Y.; Mojoudi, F.; Behbudi, G. Cloud Point Extraction (CPE) as an effective method for pre-concentration and separation of cadmium from aqueous solution is widely utilized. This study involves a surfactant mediated CPE procedure in order to remove cadmium from waste water using Polythiophene nanoparticle and Triton X- 100 as a non – ionic surfactant. Polythiophene – coated iron nanoparticles was successfully synthesized with novel method and as a super magnetic nano-particles (MNPs) for cadmium removal from aqueous solution was evaluated. Polythophene nano-particles emulsifying method have been synthesized and fabricated. Fabricated nano-particle was characterized by Fourier-transform infrared spectroscopy (FTIR), and analysed transmission electron microscopy (SEM). Effects of pH, buffer volume, extraction time, temperature, amount of nano-particle were essentially investigated. To reach in optimum conditions, related experiments were replicated and accomplished as well. For removal of cadmium by CPE approach the optimization conditions were gained at pH = 7 , volume of buffer acid 1.5 millilitre , electrolyte concentration (NaCl) of 10 -3 mole L-1 , Trinton concentration 5 %, cloud point temperature 80 0 C , extraction time 40 minutes, and 5 mg of modified polythiophene nano-particle. The calibration graph was liner with a correlation coefficient of 0. 9984 and represents appropriate liner correlation with an amount and concentration. The results revealed that 5 gram of modified nanoparticle can significantly increase the efficiency of cadmium removal. Cloud Point Extraction (CPE) as an effective method for pre-concentration and separation of cadmium from aqueous solution is widely utilized. This study involves a surfactant mediated CPE procedure in order to remove cadmium from waste water using Polythiophene nanoparticle and Triton X- 100 as a non – ionic surfactant. Polythiophene – coated iron nanoparticles was successfully synthesized with novel method and as a super magnetic nano-particles (MNPs) for cadmium removal from aqueous solution was evaluated. Polythophene nano-particles emulsifying method have been synthesized and fabricated. Fabricated nano-particle was characterized by Fourier-transform infrared spectroscopy (FTIR), and analysed transmission electron microscopy (SEM). Effects of pH, buffer volume, extraction time, temperature, amount of nano-particle were essentially investigated. To reach in optimum conditions, related experiments were replicated and accomplished as well. For removal of cadmium by CPE approach the optimization conditions were gained at pH = 7 , volume of buffer acid 1.5 millilitre , electrolyte concentration (NaCl) of 10 -3 mole L-1 , Trinton concentration 5 %, cloud point temperature 80 0 C , extraction time 40 minutes, and 5 mg of modified polythiophene nano-particle. The calibration graph was liner with a correlation coefficient of 0. 9984 and represents appropriate liner correlation with an amount and concentration. The results revealed that 5 gram of modified nanoparticle can significantly increase the efficiency of cadmium removal. 2020-03-20T00:00:00Z http://localhost:8080/xmlui/handle/123456789/1101 Investigation Preliminary antimicrobial and anticancer properties: on Topic Rubia tinctorum plant by using Polydimethylsiloxane (CAR/PDMS) Hoseinzadeh, A.; Sadeghipour, Y.; Behbudi, G. In this study, the antioxidant content in Rubia tinctorum was investigated. The extraction of essences is sensitive to operational conditions. Therefore, the effect of different extraction techniques by using HS -SPME fiber assembly Carboxen/Polydimethylsiloxane (CAR/PDMS), on the quality of essence oil composition was inspected and the composition of the final product was recognized using gas chromatography and mass spectroscopy.Essential Rubia tinctorum is widely used in pharmaceutical, sanitary, cosmetic, agriculture and food industries for their bactericidal, virucidal, fungicidal, antiparasitical and insecticidal properties. Their anticancer activity is well documented. This review is focused on the activity of essential Rubia tinctorum and their components on various types of Blood cancer cells. The chemical composition of the essential Rubia tinctorum from was analyzed by GC-MS. The main constituents were. Ocimene, Sabinene hydrate acetate, Bornyl acetate, Thymol , Methyl isoeugenol ,isoelemicin, Asarone, Neophytadiene. The cytotoxic effect of essential and extracts Rubia tinctorum were analyzed, the results showed that the substance. Good resistance against the toxicity of cell lines is shown MOLT4. Keywords: Antioxidants, Gas chromatography, Rubia tinctorum, Blood cancer cells In this study, the antioxidant content in Rubia tinctorum was investigated. The extraction of essences is sensitive to operational conditions. Therefore, the effect of different extraction techniques by using HS -SPME fiber assembly Carboxen/Polydimethylsiloxane (CAR/PDMS), on the quality of essence oil composition was inspected and the composition of the final product was recognized using gas chromatography and mass spectroscopy.Essential Rubia tinctorum is widely used in pharmaceutical, sanitary, cosmetic, agriculture and food industries for their bactericidal, virucidal, fungicidal, antiparasitical and insecticidal properties. Their anticancer activity is well documented. This review is focused on the activity of essential Rubia tinctorum and their components on various types of Blood cancer cells. The chemical composition of the essential Rubia tinctorum from was analyzed by GC-MS. The main constituents were. Ocimene, Sabinene hydrate acetate, Bornyl acetate, Thymol , Methyl isoeugenol ,isoelemicin, Asarone, Neophytadiene. The cytotoxic effect of essential and extracts Rubia tinctorum were analyzed, the results showed that the substance. Good resistance against the toxicity of cell lines is shown MOLT4. Keywords: Antioxidants, Gas chromatography, Rubia tinctorum, Blood cancer cells 2020-03-20T00:00:00Z http://localhost:8080/xmlui/handle/123456789/1100 The Importance of Silver Nanoparticles in Human Life Ahmadi, Sh. One of the nanomaterials which having an early impact in health care product is nano-silver. Silver has been used for the treatment of medical ailments for over 100 years due to its natural antibacterial and antifungal properties. The nano silver particles typically measure 25nm. They have extremely large relatively surface area, increasing their contact with bacteria or fungi, and vastly improving its bactericidal and fungicidal effectiveness. The nano silver when in contact with bacteria and fungus will adversely affect cellular metabolism and inhibit cell growth. The nano silver suppresses respiration, basal metabolism of electron transfer system, and transport of substrate in the microbial cell membrane. The nano silver inhibits multiplication and growth of those bacteria and fungi which cause infection, odor, itchiness and sores. Nano Silver can be applied to range of other healthcare products such as dressings for burns, scald, skin donor and recipient sites; acne and cavity wounds; and female hygiene products – panty liners, sanitary towels and pants. One of the nanomaterials which having an early impact in health care product is nano-silver. Silver has been used for the treatment of medical ailments for over 100 years due to its natural antibacterial and antifungal properties. The nano silver particles typically measure 25nm. They have extremely large relatively surface area, increasing their contact with bacteria or fungi, and vastly improving its bactericidal and fungicidal effectiveness. The nano silver when in contact with bacteria and fungus will adversely affect cellular metabolism and inhibit cell growth. The nano silver suppresses respiration, basal metabolism of electron transfer system, and transport of substrate in the microbial cell membrane. The nano silver inhibits multiplication and growth of those bacteria and fungi which cause infection, odor, itchiness and sores. Nano Silver can be applied to range of other healthcare products such as dressings for burns, scald, skin donor and recipient sites; acne and cavity wounds; and female hygiene products – panty liners, sanitary towels and pants. 2020-03-20T00:00:00Z http://localhost:8080/xmlui/handle/123456789/1099 Surface Modification of Nano-Hydroxyapatite by Coating Stearic Acid Yousefi, M.; Modghan, N.; Ebrahimzadeh, M.H. Todays, researchers are challenging with manufacturing polymeric nanocomposites reinforced with ceramic particles due to two inherent properties of ceramic reinforcement particles, particle agglomeration and incompatibility between hydrophilic ceramic particles and hydrophobic polymeric matrix. So in this study, we used nano-Hydroxyapatite (n-HA) as ceramic material and Stearic acid as amphiphilic material for coating n-HA, hydroxysteric acid (SA) surfactant was used for surface coating particles between the hydrophilic HA powders and the hydrophobic polymers. The surface modification and effect of this method were evaluated by by Fourier transformation infrared (FTIR), x-ray diffractometer (XRD), thermal gravimetric analysis (TGA) and Scanning electron microscopy (SEM). The result of FTIR showed that n-HA surfaces were modified successfully and the modification method had the proper grafting amount according to TGA due to this method of modification will be proper for coating reinforcement particles in polymeric matrix. Todays, researchers are challenging with manufacturing polymeric nanocomposites reinforced with ceramic particles due to two inherent properties of ceramic reinforcement particles, particle agglomeration and incompatibility between hydrophilic ceramic particles and hydrophobic polymeric matrix. So in this study, we used nano-Hydroxyapatite (n-HA) as ceramic material and Stearic acid as amphiphilic material for coating n-HA, hydroxysteric acid (SA) surfactant was used for surface coating particles between the hydrophilic HA powders and the hydrophobic polymers. The surface modification and effect of this method were evaluated by by Fourier transformation infrared (FTIR), x-ray diffractometer (XRD), thermal gravimetric analysis (TGA) and Scanning electron microscopy (SEM). The result of FTIR showed that n-HA surfaces were modified successfully and the modification method had the proper grafting amount according to TGA due to this method of modification will be proper for coating reinforcement particles in polymeric matrix. 2020-03-20T00:00:00Z