In recent decades, consumer expectations and behavior have altered, focusing on more comfortable, well-fitting clothes. Wearing a slim-fitting garment helps to move more freely. Different elastomeric polymers are being introduced as a core constituent of the yarn to make denim fabric more comfortable during movement. The use of elastic material ensures that the material is stretchable and recoverable. The performance of several elastomeric hybrid yarns has been investigated in the first section of this study. Here, polyethylene terephthalate/polytrimethylene terephthalate (PET/PTT (T400^®)), polytrimethylene terephthalate (PTT (Solotex^®)), polybutylene terephthalate (PBT), and Lycra^® (elastane) were used as the core component of the core and dual core-spun yarns. After that, 3/1 Z twill denim fabrics were made with these as weft yarns, and the fabric’s performance was assessed. It is found that dual core-spun yarns were shown to have lower strength than core-spun yarns, while it had a higher elongation value. PTT/PBT dual core-spun yarn had less unevenness and hairiness than yarn made solely of elastane. PBT in the core of the weft yarns provided strong strength, dimensional change, and stiffness qualities in the fabric. In contrast, elastane in the core of the weft yarns provided good elastic performance. Yarn and fabric performance for the hybrid yarns were statistically significant at a significance level of 0.05.

The demand for polyester fiber is increasing gradually day by day. Because of its good strength, low manufacturing cost, and ease of modification, polyester fiber has distinct characteristics, whereas cotton is well known for its comfort. Blending these fibers improves the performance of yarns. In this study, cotton/polyester was blended in different ratios to evaluate yarn performance. Three groups of yarn: rigid, core, and dual-core-spun, have been produced to examine the yarn’s performance. From the study, it has been found that increasing the polyester blend ratio increases the yarn strength and elongation but decreases the yarn unevenness and imperfections. Among the group, having more core components decreases yarn strength, unevenness, and imperfection but increases elongation. From the statistical analysis, except strength, all other properties have good interaction on yarn type and blending ratio. Pearson correlation also indicated that elongation and hairiness have a good correlation with yarn type where, except for hairiness, all other properties have shown a strong positive correlation on blending ratio.

Consumer choice and behavior are changing and focusing on comfortable clothing along with fitting. Elastic yarn or fabric is necessary to achieve this comfortableness. By making elastic yarn and using elastic material in fabric production, elastic cloths are produced with proper stretchability and recovery. For that, core-spun yarn was used, but due to a lack of recovery performance, dual core-spun yarn has been developed. Different elastane ratios, linear density, and filaments were used in the dual core-spun yarn according to achieve desired stretchability. In this study, denim fabric performances were evaluated by designing different composite/hybrid dual core-spun yarn with a combination of cotton fiber and filaments. Different elastane linear densities with different filaments, PET/PTT, PTT, and PET, were used, and it was found that using finer elastane in dual core-spun yarn, strength, and unevenness are increased, and elongation decreased. Using PET/PTT filament increases hairiness, and using PTT filament increases elongation. For fabrics, coarser elastane in the dual core-spun yarns has higher stiffness, elasticity, and shrinkage. Fabric with PTT showed higher weight change and stiffness, whereas PET filament-based fabric samples have good strength and low stiffness. In addition, a multiple regression analysis was carried out for yarn and fabric properties, and mathematical models were developed.

Cotton and polyester fiber blends are commonly used to improve the aesthetic features of finished items. The denim industry’s growing need for polyester fiber aids in analyzing the performance of denim fabrics woven from rigid and stretched weft yarn combined with cotton and polyester. This study evaluates the weight, dimensional changes, stiffness, tensile and tearing strength, stretch, and comfort properties of denim fabric woven from cotton and polyester in various blended ratios. Here, Ne 14/1 (42 tex) 100% cotton warp yarn and Ne 18/1 (33 tex) weft yarns, consisting of 100% cotton, 75/25, 50/50, and 25/75 cotton/polyester (CO/PES) blends, as well as 100% polyester, were used to produce 3/1 Z twill denim fabric. The weft yarns were categorized into three groups: rigid, core-spun, and dual-core-spun yarns. Experimental results showed a higher polyester content in weft yarn, and denim fabrics’ tensile and tearing strength was improved, whereas fabrics’ weight loss, dimensional changes, and stretch properties were reduced. Furthermore, different statistical analyses were conducted to evaluate the type of weft yarn and blending ratio interaction and correlation with fabric properties. Additionally, a regression model was developed with the weft yarn type and blending ratio as independent variables to predict the fabric properties.

Polymer‐induced liquid precursors are hydrated, metastable, amorphous droplets rich in insoluble ionic compounds; they form in aqueous solutions that are supersaturated with mineral ions in the presence of charged polymers that delay the onset of crystal nucleation. This work reports that rapid crystallization of the carbonate salts of calcium, barium, and strontium can be triggered by adding polycations to polyanion‐stabilized precursor solutions that would otherwise be stably amorphous for over ten days. In complex coacervate systems, entropic gains drive the competitive displacement of small (e.g.) cationic species from anionic binding partners by larger molecules with more positive charges. We build evidence that the constituents of the stabilized mineral salt are displaced from the stabilizing polyanion by the added polycation in a similar manner. By exposing liquid precursor solutions to arrays of polycationic hydrogels, we demonstrate the ability to deposit crystals in a site‐selective manner, enabling spatial control over mineral formation.

Chromatin is a hierarchically organized soft material whose nanoscale structure and heterogeneity regulate essential genomic functions. Resolving this organization requires molecular imaging materials that combine selective DNA binding with photophysical properties compatible with nanoscale localization and energy transfer under biologically relevant conditions. Conventional bisbenzimide (Hoechst) DNA stains provide robust targeting of nuclear DNA but limited applicability for super-resolution imaging. Here, we investigate the modular molecular engineering strategy in which cyanine chromophores (Cyanine3, Cyanine5, or Cyanine7) are covalently integrated with a bisbenzimide DNA-binding motif through an aliphatic spacer to form hybrid fluorescent materials. This design decouples DNA recognition from optical functionality, allowing independent optimization of binding affinity and photophysical performance. In the resulting conjugates, the cyanine units retain their intrinsic brightness and spectral properties, while the bisbenzimide ligand preserves high-affinity minor-groove binding to nuclear DNA. The Cyanine3–Hoechst and Cyanine5–Hoechst hybrids enable high-contrast imaging of nuclear DNA in fixed and permeabilized cells using long-wavelength excitation (>500 nm), with strongly suppressed extranuclear background. The substantial spectral overlap between Cyanine3 emission and Cyanine5 absorption further enables efficient Förster resonance energy transfer within the nuclear environment, providing a route to probe nanoscale proximity and organization in chromatin. Owing to their favorable photophysical stability and brightness, these hybrid materials also support single-molecule localization microscopy, revealing nanostructured features within the nucleus that are not resolved in diffraction-limited images. This approach provides a versatile platform for developing next-generation imaging materials tailored to the study of chromatin as a dynamic soft matter system.