Gold Nanoparticles: Synthesis and Applications in Drug Delivery

This review is focused essentially on the synthesis and applications of gold nanoparticles in the field of medicine and targeted drug delivery. Nanotechnology has become one of the most interesting and advanced areas of research in this field. Among nanoparticles, gold nanoparticles demonstrate special advantages in this field due to their unique properties, small size and high surface area-to-volume ratio. These particles have been widely used in various biomedical applications and drug delivery systems due to their inert nature, stability, high dispersity, non-cytotoxicity and biocompatibility.Keywords: Biosynthesis, Gold nanoparticles, Biomedical applications, Targeted drug delivery,Nanotechnology

EFFECT OF DIFFERENT SOLVENTS ON THE CHEMICAL COMPOSITION AND ANTI-DIABETIC ACTIVITY OF ACACIA ARABICA AND ZIZYPHUS MAURITIANA

The current study was designed to investigate the effect of solvents on chemical composition and antidiabetic activity of Zizyphus mauritiana and Acacia Arabica extracts. Total five solvents were used for this purpose (100% methanol, 50% aqueous methanol, 100% ethanol, 50% aqueous ethanol and aqueous). The data obtained from the investigation was subjected to the statistical analysis by using analysis of variance technique. The present study revealed that maximum antioxidant activity was attributed to Acacia arabica (96.53 ± 0.46%) followed by Zizyphus mauritiana (94.33 ± 0.52% by 50% aqueous ethanol extracts). Maximum total phenolic content of both Zizyphus mauritiana and Acacia arabica (670.83 ± 1.46 mg GAE/100g and 934.34 ± 0.89 mg GAE/100g) were shown by 50% aqueous ethanol extracts while maximum total flavonoid content (146.36 ± 0.81 mg QE/100 g, 172.52 ± 0.99 mg QE/100 g) was exhibited by 50% aqueous ethanol extract. The maximum (IC 50= 49.63 ± 0.12 µg/mL) antidiabetic activity was found in aqueous extract of Acacia arabica while in Zizyphus mauritiana the aqueous extract indicated excellent (IC 50= 46.90 ± 0.23 µg/mL) antidiabetic activity

Enhancing Mobile Agent Security Level (Proposed Model)

Mobile agents are application design schemes for distributed systems that consist of mobile code ideology including Mobile agent software. In the last period mobile computing process had a vision that’s a set of execution code that’s move from platform to another in the heterogeneous network with an ability of carrying there result and updating them self-sate. This paper presents several enhancements on mobile agent security and provides generalized code protection. Several novel techniques are proposed to protect mobile agents in any environments and to describe and solve practical problems in the mobile agent system

Current Clinical Practices in Pakistan and Hospital Pharmacist’s Perception towards Their Role: A Qualitative Approach

The professional role of the pharmacist in hospital setting is changing from a focus on preparation of medication to patient oriented approach and now pharmacist assists the patient to get best possible results from medication. The aim of this study was to evaluate the perception of hospital pharmacists towards their role in the healthcare system of Pakistan. A qualitative study design was adopted. Face to face interviews were conducted using a semi structure interview guide. A total of nineteen interviews were conducted and become the part of the study. All the interviews were transcribed verbatim and thematically analyzed for its content. Thematic content analysis yielded five major themes: 1) perception regarding pharmacist-patient interaction, 2) perception towards reducing prescription errors, 3) perception towards pharmacy curriculum, 4) perception towards pharmacist engagement in hospital policies, and 5) perception regarding clinical role of pharmacists.Colegio de Farmacéuticos de la Provincia de Buenos Aire

Long-tunneled versus short-tunneled external ventricular drainage: Prospective experience from a developing country

Background: External ventricular drains (EVD) are commonly utilized for temporary diversion of cerebrospinal fluid (CSF). Many neurosurgeons prefer long-tunneled EVDs in their routine practice. However, it is still unclear whether this extended tunneling helps in reducing CSF infection. Keeping this in mind, we decided to compare infection rates in long-tunneled versus short-tunneled EVDs in the setting of a developing country.Materials and methods: A prospective study of 60 patients was conducted. Consenting patients who underwent short-tunneled (Group A) or long-tunneled (Group B) EVDs between January 2008 and June 2009 were followed during the course of their inpatient care. All operational protocol was standardized during the trial. Serial samples of CSF were analyzed to detect infection.Results: Mean age of patients was 33.6 years with 32 males (53.3%). Mean duration of long-tunneled EVD was 13.4 ± 7.2 days, whereas that of short-tunneled EVD was 5.3 ± 2.7 days (P \u3c 0.001). Three patients with long-tunneled EVD (10.0%), whereas one patient with short-tunneled EVD (3.3%) developed drain-related infections; however, this was non-significant (P = 0.301). However, patients with short-tunneled EVD got infected earlier on day 3when compared with the long-tunneled EVDs, which got infected after a mean duration of 7.3 days. The overall risk of infection for long-tunneled EVDs was 7.46 per 1,000 ventricular drainage days which was comparable to the risk of 6.33 per 1,000 ventricular drainage days seen for short-tunneled EVDs.Conclusion: Long-tunneled EVDs appear to only delay potential infections without having any effect on the actual risk of infection. Long-tunneled EVD in a resource-limited setting is technically challenging and may not yield additional benefits to the patient. However, larger and prospective studies are needed to establish the rate of infections and other complications

A Bibliometric Analysis of Research Productivity on Diabetes Modeling and Artificial Pancreas 2001 to 2020

The prevalence of diabetes apparently increases all over the world. Thus, significant research works have been carried out in all aspects of the disease to control and mitigate its effects. Many researchers looked to the disease as a biomedical control engineering problem where the main task is identifying the model that can be used to mimic the healthy person\u27s metabolism and therefore relieving the lives of millions of diabetics. This work aims to explore the dynamics of the produced scientific research in the area of diabetes modeling and control from a bibliometric method. In this work, a comprehensive bibliometric analysis of published research is carried out to give a guide to scientists in the field to explore research productivity and highlight the trends and tendencies besides showing the gaps for future research. The data were extracted from Scopus, a largest indexing and abstracting database of scientific literature. The analysis showed the field\u27s leading countries, institutes, journals, articles, authorships, keywords, collaboration research networks, leading scholars, and a three-factor analysis of leading countries, institutions, and keywords