Today, the rational combination of materials and design has enabled development bio-inspired lattice structures with unprecedented properties to mimic biological features. The present study aims investigate mechanical performance energy absorption capacity such sophisticated hybrid soft–hard gradient lattices. are designed based on diversity graded size unit cells. By changing cell arrangement, five different various relative densities made soft hard numerically investigated. simulations...

The triterpinoids, betulinic acid, lupeol and betulinaldehyde, were isolated from the ethyl acetate extract of stem bark Avicennia officinalis (Avicenniaceae) by a combination column preparative thin-layer chromatography over silica gel. structures these compounds determined spectroscopic analysis (UV, IR, 1H NMR, 13CNMR EIMS). This is first report systematic phytochemical investigation presence triterpoids this plant. 
 Key words: Triterpenoid, Avicenniaceae, Betulinic Lupeol...

Psidium guajava L (Guava) belongs to the Myrtaceae family and has been claimed possess several pharmacological properties including antidiabetic.This study was designed evaluate anti-hyperglycemic activity of P leaves aqueous extract on neonatal streptozotocin-induced type 2 diabetic model rats.Streptozotocin induced (90 mg/kg) intraperitoneally 48 h old Long Evans rat pups. After three months, 18 male type-2 rats were confirmed by OGTT (FG > 7 mmol/L). Therefore, experimental divided into...

The effect of increasing the pulp yield by addition sodium borohydride (NaBH 4 ) or polysulfide (PS) in softwood kraft cooking, i.e. enhancing retention glucomannan, on physical properties low-grammage handsheets was studied.In to improvement, an increase tensile index observed, especially at lower degrees beating.These higher pulps showed pore volume, indicating increased degree swelling fibres.Presumably, flexibility fibres affects bonding strength and leads observed.

Abstract Previous paper (Rahman et al. 2017) showed that the yield of softwood kraft pulp increased by addition either polysulfide or sodium borohydride because higher hemicellulose retention. An increase in content can make dewatering more difficult as WRV increases, but instead, an overall could improve a sheet certain weight will contain fewer fibres, giving open structure. It was therefore interest to measure properties low grammage handsheets (20 g/m 2 ) under conditions mimicking...

Abstract An existing liquid chromatographic (LC) methodfor determination of thiabendazole (TBZ) residues inor on whole green bananas and potatoes was applied to whole, unwashed citrus fruits. The method is applicable for determining TBZ in oranges,grapefruits, tangerines, lemons. extracted from homogenate with ethyl acetate, theextract cleaned up a cation-exchange, solid-phase extraction column. purified extract analyzed by LC cation-ex change column fluorescence detection. Average recovery...

Abstract not available Dhaka Univ. J. Pharm. Sci. 23(2): 205-209, 2024 (December)

The fractionated crude extracts and three isolated pure compounds XM-1, XM-2 XM-3 from stem bark of Xylocarpus mollucensis were screened for their antibacterial antifungal activities cytotoxicity against brine shrimp nauplii. Petroleum ether, ethyl acetate (EtOAc) methanol (MeOH) the EtOAc fractions studied antimicrobial activities. Cytotoxic conducted only with extract its selected fractions. showed promising all gram positive negative bacteria whereas petroleum ether moderate MeOH did not...

This paper compares the predicted distortion of a manifold geometry fabricated by laser powder bed fusion between an established finite element model using solid elements and newly developed in this shell elements. The models utilized two methods to induce strain field (inherent analytical thermal methods). distortions from these were also compared with experimentally measured distortions. results showed that is more suitable predict buckling effect on geometry. Despite that, accurate...

Qualitative assessment of herbal formulations is used in pre-health care many diseases. The potency, composition and safety formulation are serious concerns Bangladesh. Therefore, the aim present study was to evaluate qualitative a customized anti-hepatic Isolation compounds, toxic metals analysis, phytochemical screening, microbial test determination SGPT SGOT level hepatic model rats were focused this study. screening revealed presence phenol, saponins tannins. In chemical study, four...

Optimizing the fibre property distribution could increase pulp properties as well process efficiency of chemimechanical pulps (CMP/CTMP). This can only be achieved with a better understanding how evenly distributed sulphonate concentrations are between individual CTMP fibres. Given that quality wood chips varies chipping methods used in pulpwood processing and sawmill processing, chip screening system, it is challenge to develop an impregnation ensures even sodium sulphite (Na2SO3) liquid...

A liquid chromatographic (LC) method was developed for determination of thiabendazole (TBZ) residues in or on whole, unwashed white potatoes (Solanum tuberosum) and sweet (Ipomoea batatas). TBZ is extracted from the potato homogenate with ethyl acetate extract purified concentrated a cation-exchange, solid-phase extraction column. The analyzed by column LC cation-exchange fluorescence detection. Recoveries whole fortified at 0.05-20 ppm 0.005-0.1 averaged 100 94%, respectively. also...

In the pulp and paper industry, about 5 Mt/y chemithermomechanical (CTMP) are produced globally from softwood chips for production of carton board grades. For tailor making CTMP this purpose, wood impregnated with aqueous sodium sulphite sulphonation lignin. When lignin is sulphonated, defibration into becomes more selective, resulting in enhanced properties. On a microscopic fibre scale, however, one could strongly assume that structure very uneven due to its macroscale size chips. If case...