Abstract Fingerprints have been established as legitimate and critical forensic science evidence for identifying criminals beginning early the twentieth century. This article details different types of fingerprints, broad range surfaces, various development techniques available on-site latent fingerprint collection, with fidelity being prime significance. Fluorescent imaging finger-marks benefits from enhanced sensitivity, selectivity, reduced reliance on instruments. The review focuses...

This article presents the thermal stability of flax, jute and ultrahighmolecular weight polyethylene (UHMWPE) fibers their composites. Composites are fabricated using a combination hand layup compression moulding. Two types resins namely phenol formaldehyde (PF) melamine (MF) considered. Stacking eight layers individual fabric was utilised to produce composite panels 4 mm thickness. Alkali treatment flax showed an enhancement in behaviour, whereas UHMWPE sustained degradation till 474°C....

Abstract Novel H-bonded liquid crystals (HBLCs) are synthesized and examined for their mesomorphic behavior. The HBLCs prepared with Schiff base proton acceptors containing 8 18 carbons in the alkyl chain donor 4-substituted benzoic acids. All compounds exhibit smectic A mesophases, one of exhibiting LC properties below 298 K. It is interesting to note that ethoxy-substituted a wide range thermal stability. Density functional theory calculations revealed formation two hydrogen bonds between...

Abstract Integrating nanoparticles with liquid crystals has emerged as a contemporary research domain in soft matter. The interplay between the two can substantially transform their properties and dynamics. study conducted experiments using nanocomposites of hydrogen-bonded supramolecular calamitic (HBLCs) doped ZnO nanoparticles. It is found that concentration carbon chain length host compounds played significant role determining mesophase transition crystallization temperatures. aimed to...

Abstract Incorporating nanomaterials into liquid crystals has gained popularity since the rise of nanotechnology in 1990s. The modifications physical and chemical properties are envisioned with formulation nanocomposites. In this work, we provide experimental evidence for enhancement conductivity observed composites ZnO nanoparticles (NPs) doped hydrogen bonded (HBLCs) (P18:FBA) built (4-pyridyl)-benzylidene-4ʹ- n -octadecylaniline as proton acceptors 4-Fluorobenzoic acids donors. FTIR...

Two novel series of unsymmetrically substituted 1,2,4-oxadiazole viz., R.Ox.C(*)C n compounds are synthesized and characterized. An optically active, (S)-(+)-methyl 3-hydroxy-2-methylpropionate is used to introduce a chiral center in the molecule. A biphenyl moiety prepared by Suzuki coupling reaction directly attached oxadiazole core at C-5 position. Investigations for phase behavior revealed that with benzyl group on one end exhibits an 1D orthogonal smectic-A while second dodecyl flexible...

Abstract The scientific and technical advances in the field of polymer science has been abundant recent years. Amongst various polymeric materials available market, synthesis polyolefins forefront since decades. A major challenge this domain remains attaining stereoregular especially polypropylene (PP) significant efforts were carried out by synthesizing internal donors (ID) aiding catalysts involved producing them. This short review gives an overview i) generations Ziegler–Natta (ZN)...

A novel series of linear hydrogen-bonded (HB) liquid crystalline (LC) complexes (HBLCs), namely Py16BA:noBAs, is reported. The was prepared by the complexation a non-mesogenic proton acceptor moiety, (4-pyridyl)-benzylidene-4′-n-hexadecyl aniline (Py16BA), with mesogenic donor, p-n-alkoxy benzoic acid (noBAs for n = 3, 4, 5, 6, 7, 8, 9, and 12) moieties. Formation HB confirmed through FTIR spectra. LC phases exhibited transition temperatures (Tc), heat (enthalpy) (ΔH) are determined...

A novel series of four-ring achiral ferroelectric liquid crystals containing 1,2,4-oxadiazole cores with unsymmetrical substitutions at C-3 and C-5 positions are synthesised characterised. fluoro substituted biphenyl moiety is prepared by Suzuki coupling reaction directly attached to the oxadiazole core position for first time in literature. An octyl benzoate it. All compounds exhibit polar smectic (B2) mesophases switching along orthogonal smectic-A mesophases. These possess high...

This study explores the effects of both size and position halo substituents on mesomorphic behaviour hydrogen-bonded liquid crystals.

Abstract H-bonded liquid crystals (HBLCs) are newly synthesized with PyBF viz., (4-pyridyl)-benzylidene-4′-fluoro aniline as the proton acceptor which is non-mesogenic and alkyloxy benzoic acids n OBAs ( = 3, 12) mesogenic donors. The H-bond formed confirmed by FTIR spectroscopy. Polarizing Optical Microscopy compound’s mesomorphic textures, thermal analysis carried out using a Differential Scanning Calorimeter. influence of fluorine atom on stability studied. nonlinear optical properties...

Nature constructs captivating stable structures and assemblies using the principles of order flexibility. A lot literature evidence focuses on design mesogenic soft materials with a 1,3,5-triazine core due to its appealing structure properties. Progress in field triazine-based liquid crystal molecules emphasis their synthesis mesomorphic features is presented this review. The prospects that could orient researchers stimulate further efforts area are also presented.

The study of soft and condensed matter, specifically liquid crystals, has a rich history that spans from world wars to modern virtual reality. Liquid crystal materials are utilized in various applications such as displays, sensors, more. Additionally, studying the unique properties these anisotropic is intriguing. Our team researchers dedicated creating sustainable, eco-friendly, cost-effective organic materials. To achieve this goal, we focus on designing synthesizing crystals. An area find...