DESIGN, PREPARATION, AND EVALUATION OF SELF-MICROEMULSIFYING DRUG DELIVERY SYSTEM OF BAMBUTEROL HYDROCHLORIDE

Objective: The self-micro-emulsifying drug delivery system (SMEDDS) of bambuterol hydrochloride was designed, prepared, and evaluated to overcome the problem of poor bioavailability.Methods: The designing of the formulation included the selection of oil phase, surfactant, and cosolvent/cosurfactant based on the saturated solubility studies. Psuedoternary phase diagram was constructed using aqueous titration method, to identify the self-emulsifying region. Different ratios of the selected surfactant and cosolvent/cosurfactant (Smix) were also studied and used to construct the ternary phase diagram. The prepared formulations of the SMEDDS were evaluated for drug content, morphology, globule size, robustness to dilution, emulsification time, optical clarity, and stability.Results: The formulation containing 10 mg bambuterol hydrochloride, triacetin (12.50% w/w), Tween 80 (43.75% w/w), and ethanol (43.75% w/w) was concluded to be optimized. The optimized SMEDDS not only showed optimum globule size, zeta potential, and drug content but was also found to be robust to dilution, formed emulsion spontaneously, and was stable. The optimized SMEDDS showed increased permeability of the drug across the intestinal membrane in ex vivo studies.Conclusion: The results suggest that bambuterol hydrochloride can be formulated as self-microemulsifying drug delivery system, and further, SMEDDS can be used to improve the oral bioavailability of bambuterol hydrochloride

Comparative study between transcervical extra-amniotic Foley’s bulb and prostaglandin E2 gel for pre-induction cervical ripening

Background: Induction of labor is an artificial initiation of uterine activity before the spontaneous onset of labor with the aim of achieving vaginal delivery. Various pharmacological and non-pharmacological methods have been studied for the purpose.Methods: This randomized prospective study conducted in the Department of Obstetrics and Gynaecology at the Seth V. C. Gandhi & M. A. Vora Municipal General Hospital (Rajawadi Hospital), Mumbai from June 2019 to April 2020. It included pregnant patients admitted to the labor ward for induction of labor. A total 200 women were recruited and randomly allocated to the two study groups fulfilling the following selection criteria. Of these, 100 women were included in Foley's catheter group (group A) and 100 in (group B) prostaglandin E2 (PGE2) group.  Results: The subjects included mainly were of 24-28 years age group. The period of gestation was 37-42 weeks in majority of the women in both the groups. Maximum numbers of women in both groups were primigravidae, being 66% in group A and 70% in group B. Foley catheter proved to be a highly effective pre-induction ripening agent for unfavorable cervix, compared to PGE2 gel, as evident by the mean Bishop score at 12 hours (p<0.05) and by the difference in change of Bishop score over 12 hours (p<0.05) in both groups A and B. Women in both the groups had a high rate of normal vaginal delivery, rate being significantly more in Foley’s group.Conclusions: This study concludes that extra-amniotic Foley’s catheter balloon is an effective, safe, simple, low cost, reversible, non-pharmacological mechanical method of pre-induction cervical ripening

Energy Efficiency Based Load Balancing Optimization Routing Protocol In 5G Wireless Communication Networks

A significant study area in cloud computing that still requires attention is how to distribute the workload among virtual machines and resources. Main goal of this research is to develop an efficient cloud load balancing approach, improve response time, decrease readiness time, maximise source utilisation, and decrease activity rejection time. This research propose novel technique in load balancing based network optimization using routing protocol for 5G wireless communication networks. the network load balancing has been carried out using cloud based software defined multi-objective optimization routing protocol. then the network security has been enhanced by data classification utilizing deep belief Boltzmann NN. Experimental analysis has been carried out based on load balancing and security data classification in terms of throughput, packet delivery ratio, energy efficiency, latency, accuracy, precision, recall

Wild Halophyte Plants as Potential Fodder Resource under Extreme Saline Environment of Kachchh, Gujarat, India

Rann of Kachchh in North West India is a unique saline marshy desert. It is described as a desolate area of unrelieved, sun-baked saline clay desert, shimmering with the images of a perpetual mirage (Mountfort et al., 1991) and is regarded as the largest salt desert in the world. In the Indian part it stretches in 7505.22 sq. km known as Great Rann and 4,953 sq. km known as Little Rann. The Ranns turns into marshy land by inundated water from runoff during monsoonal rainfall and water driven by forces of winds and tides from Arabian Sea making the area unapproachable especially during June to September and in reminder of months the area remain as a hyper saline desert. Even at these extreme saline conditions certain halophytic plants come up from the native seed bank/ roots once the water gets evaporated as these plants possess some mechanisms to survive salinity even higher than that of sea water (Goswami et al., 2014). Some of these plants are grazed by livestock of the area. Due to uncontrolled grazing by ever increasing livestock population and increasing demand for fuel wood, in these deserts the natural diversity of these halophytes are at stake (Arndt et al., 2004). Information on the diversity of halophytes in the hyper saline desert in relation to varying degree of salinization is not available. Therefore the present study was undertaken to study the distribution of halophyte grasses and non-grasses in Great Rann of Kachchh and their usefulness as fodder resource

An Emerging Trend in Tablet Technology:- Floating Tablets of Ranitidine HCl

The rationale of this research was to prepare a gastroretentive drug delivery system of Ranitidine HCL. Floating Drug delivery system used to target drug release in the stomach or to the upper part of the intestine. The oral delivery of Ranitidine is tested by preparing a non-disintegrating floating dosage form, which increase its absorption in the stomach by increasing the drug’s gastric residence time. The polymer PVC and Sodium bicarbonate was used as the gas–generating agents. Sodium bicarbonate causes the tablets to floats for more then 24hr. The prepared tablets were evaluated on their physicochemical properties and drug release characters. In-vitro release studies indicate that the Ranitidine release form the floating dosage form was uniform followed zero order release. A combination of sodium bicarbonate (70mg) and citric acid (15mg) was found to achieve Optimum in vitro buoyancy. The tablets with methocel K100 were found to float for longer duration of time as compared to formulations containing methocel K15M. The drug release from the tablets was sufficiently sustained.Keywords: Ranitidine; Floating tablets; Methoce

Preparation and evaluation of mouth dissolving tablets of meloxicam

The aim of the present study was to develop evaluate mouth dissolving tablet of meloxicam. Drug delivery systems became sophisticated as pharmaceutical scientists acquire a better understanding of the physicochemical and biochemical parameters pertinent to their performance. Over the past three decades, mouth dissolving or orally disintegrating tablets have gained considerable attention as a preferred alternative to conventional tablets due to better patient compliance. The most preferrable route of drug administration (e.g. oral) is limited to drug candidate that show poor permeability across the gastric mucosa and those, which are sparingly soluble. A large majority of the new chemical entities and many new existing drug molecules are poorly soluble, thereby limiting their potential uses and increasing the difficulty of formulating bioavailable drug products,so lastlly the purpose of this study was to grow mouth dissolve tablets of Meloxicam. Meloxicam is a newer selective COX-1 inhibitor. These tablets were prepared by wet granulation procedure. The tablets were evaluated for % friability, wetting time and disintegration time. Sublimation of camphor from tablets resulted in better tablets as compared to the tablets prepared from granules that were exposing to vacuum. The systematic formulation approach helped in understanding the effect of formulation processing variables.Keywords: Mouth dissolving tablet; Maloxicam; Bioavailability; NSAI

Preparation and evaluation of mouth dissolving tablets of meloxicam

The aim of the present study was to develop evaluate mouth dissolving tablet of meloxicam. Drug delivery systems became sophisticated as pharmaceutical scientists acquire a better understanding of the physicochemical and biochemical parameters pertinent to their performance. Over the past three decades, mouth dissolving or orally disintegrating tablets have gained considerable attention as a preferred alternative to conventional tablets due to better patient compliance. The most preferrable route of drug administration (e.g. oral) is limited to drug candidate that show poor permeability across the gastric mucosa and those, which are sparingly soluble. A large majority of the new chemical entities and many new existing drug molecules are poorly soluble, thereby limiting their potential uses and increasing the difficulty of formulating bioavailable drug products,so lastlly the purpose of this study was to grow mouth dissolve tablets of Meloxicam. Meloxicam is a newer selective COX-1 inhibitor. These tablets were prepared by wet granulation procedure. The tablets were evaluated for % friability, wetting time and disintegration time. Sublimation of camphor from tablets resulted in better tablets as compared to the tablets prepared from granules that were exposing to vacuum. The systematic formulation approach helped in understanding the effect of formulation processing variables.Keywords: Mouth dissolving tablet; Maloxicam; Bioavailability; NSAI

Experimental and theoretical study into interface structure and band alignment of the Cu2Zn1–xCdxSnS4 heterointerface for photovoltaic applications

To improve the constraints of kesterite Cu2ZnSnS4 (CZTS) solar cell, such as undesirable band alignment at p–n interfaces, bandgap tuning, and fast carrier recombination, cadmium (Cd) is introduced into CZTS nanocrystals forming Cu2Zn1–xCdxSnS4 through cost-effective solution-based method without postannealing or sulfurization treatments. A synergetic experimental–theoretical approach was employed to characterize and assess the optoelectronic properties of Cu2Zn1–xCdxSnS4 materials. Tunable direct band gap energy ranging from 1.51 to 1.03 eV with high absorption coefficient was demonstrated for the Cu2Zn1–xCdxSnS4 nanocrystals with changing Zn/Cd ratio. Such bandgap engineering in Cu2Zn1–xCdxSnS4 helps in effective carrier separation at interface. Ultrafast spectroscopy reveals a longer lifetime and efficient separation of photoexcited charge carriers in Cu2CdSnS4 (CCTS) nanocrystals compared to that of CZTS. We found that there exists a type-II staggered band alignment at the CZTS (CCTS)/CdS interface, from cyclic voltammetric (CV) measurements, corroborated by first-principles density functional theory (DFT) calculations, predicting smaller conduction band offset (CBO) at the CCTS/CdS interface as compared to the CZTS/CdS interface. These results point toward efficient separation of photoexcited carriers across the p–n junction in the ultrafast time scale and highlight a route to improve device performances