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Green synthesis of silver nanoparticles using plant extracts
Mansour Ghaffari-Moghaddam,Robabeh Hadi-Dabanlou,Mostafa Khajeh,Mansoureh Rakhshanipour,Kamyar Shameli 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.4
The strategy for design of new nanometals was developed due to their wide applications in many fields. One of the most important nanometals is silver nanoparticles (AgNPs) because of their extensive applications in biotechnologyand biomedical fields. AgNPs were usually synthesized by using chemical and physical methods. In thechemical methods, various toxic chemicals are used, which are harmful to the health of living organisms. Therefore,the AgNPs were synthesized by using biological methods based on green chemistry for reducing the toxic chemicals. There are various resources for green synthesis of AgNPs, such as bacteria, fungi, enzyme and plant extracts. The greensynthesis of AgNPs involves three main steps: the selection of the solvent medium, the selection of environmentallyreducing agents, and the selection of non-toxic substances for the stability of AgNPs. The biosynthesis of AgNPs usingplant extracts is more favorable than other biological methods because of removing the elaborate process of maintainingcell cultures. It can be also suitably scaled up for large scale production of AgNPs. This review focuses on green synthesisof AgNPs using various plant extracts.
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Asma Amini,Mostafa Khajeh,Ali Reza Oveisi,Saba Daliran,Mansour Ghaffari-Moghaddam,Hojat Samareh Delarami 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.93 No.-
A novel adsorbent, GO/Fe3O4/OPO3H2/PCN-222, was successfully synthesized via graphene oxide (GO)modification with magnetic particles, phosphorous-containing groups, and a mesoporous Zr-MOF, PCN-222 (PCN stands for Porous Coordination Network), respectively, to give the nominal composite. The laststep was through a solvent-assisted ligand incorporation technique. Morphological, structural, andphysicochemical properties of the hybrid material was assessed by FT-IR, PXRD, SEM/EDX, BET surfacearea, VSM, TGA/DSC, UV–vis DRS, and ICP-OES analyses. This solid was then used for dispersive solidphase extraction of uranium ions dissolved in water. Several parameters including pH of solution,extraction and desorption times, amount of adsorbent, and type and concentration of elution solventwere investigated and optimized. The maximum adsorption capacity of adsorbent was found to be416.7 mg g 1 (pH, 6.2; amount of adsorbent, 5.0 mg; extraction time, 3.0 min) beyond what wasachievable with the individual components. In addition, various coordination modes between themultifunctional adsorbent and uranyl ions were investigated by DFT calculations in details, revealingsome favorable non-covalent cation–p interaction and strong binding of free-base porphyrin, carboxyland phosphorous-containing groups to the uranium ions. Under optimized conditions, highdetermination coefficient (R2 = 0.9994) was obtained and limit of detection and relative standarddeviation were found 0.9 mg L 1 and 2.7%, respectively
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Towhid Babazadeh,Mostafa Dianatinasab,Amin Daemi,Hossein Ali Nikbakht,Fatemeh Moradi,Saber Ghaffari-fam 대한당뇨병학회 2017 Diabetes and Metabolism Journal Vol.41 No.6
Background: Self-care of diabetes is an essential part for controlling the disease and improvement of quality of life in type 2 diabetes mellitus (T2DM) patients. This study aimed to analyze the associated factors of quality of life in patients with T2DM in order to design effective interventions. Methods: This cross-sectional study was conducted on 120 T2DM patients referred to health centers of Chaldoran, West Azerbaijan Province, Iran. The quality of life’s questionnaires from World Health Organization and the self-care behaviors’ questionnaires were used for data collection. Results: The mean age of patients was 46.30% and 53.30% of them were male. Among demographic variables, gender (P=0.002), age groups (P=0.007), and household monthly income (P=0.009) were significantly associated with total quality of life. Also, selfcare nutrition (odds ratio [OR], 1.47; P=0.001), self-management of blood glucose control (OR, 1.29; P=0.002), and self-medication behavior (OR, 1.18; P=0.030) were identified as factors significantly associated with quality of life. Conclusion: Self-care behaviors were significantly associated with quality of life; among them, the greatest influence was observed in self-care nutrition behavior. According to the findings of this study, appropriate interventions on self-care behaviors about nutrition can improve the quality of life for T2DM patients.
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Narges Arsalani,Masoud Fallahi-khoshknab,Mostafa Ghaffari,Malin Josephson,Monica Lagerstrom 한국간호과학회 2011 Asian Nursing Research Vol.5 No.3
Purpose: To adapt a questionnaire in the Persian language measuring working conditions and health problems among nursing personnel. A further aim was to test the validity and reliability of the questionnaire. Methods: The adapted questionnaire was based on three well-established questionnaires. Physical working conditions items were from Nurse Early Exit Study. Psychosocial working conditions scales were included from Copenhagen Psychosocial Questionnaire which contains two scales on general and mental health as well. The Nordic Musculoskeletal Questionnaire was the origin of the musculoskeletal disorders questions. During the culture adaptation process, an expert panel method was used. To achieve equivalence between the sources and target version, some changes were made by the expert panel. Then the questionnaire was examined in the field for face validity and construct validity (n ¼ 92) among Iranian nursing personnel from two hospitals. Construct validity was assessed using a priori hypothesized correlations of the outcomes with exposures. Finally the adaptation process was completed by reliability assessment using Cronbach’s alpha and Intra-class Correlation Coefficient (ICC). Results: The construct validity result was the correlation of the health outcome with the work-related exposure (physical rs ¼ .71 and psychosocial rs ¼ .66). In the reliability assessment, Cronbach’s alpha and ICC were .60 and .70 respectively. Conclusion: The findings show that the adapted questionnaire has an acceptable conceptual structure and provides reliable information from the nursing profession. Consequently, the questionnaire is applicable to work situation studies among nurses and other health care workers.
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