Near infrared laser precisely controlled ultrafast superhydrophilicity-to-hydrophobicity transition of copper sulfide nanosphere coating on cellulose fiber fabric.

Inspired by lotus leaf, biomimetic hydrophobic cellulose fiber-based textiles were usually fabricated by the lower surface energy materials. However, it is rare to witness a hydrophobic surface obtained by near infrared laser (NIR) irradiation a superhydrophilic nanomaterial, which remains a huge challenge. Herein, the CuS nanospheres was in-situ anchored on the surface of gallic acid self-polymer treated cotton fabric.

Development of a Frailty Prediction Model Among Older Adults in China: A Cross-Sectional Analysis Using the Chinese Longitudinal Healthy Longevity Survey.

Aims: To identify the risk factors associated with frailty among older adults in China and develop a predictive model for assessing their frailty risk.

Design: Secondary cross-sectional analysis.

Methods: The 2018 Chinese Longitudinal Healthy Longevity Survey (CLHLS) provided data for this study.

Melt-spun polylactide/ethylene vinyl alcohol copolymer fiber.

Polylactide/ethylene vinyl alcohol copolymer (PLA/EVOH) blends and fibers with different weight ratios were prepared by melt blending, and two-step melt spinning, respectively. PLA and EVOH in PLA/EVOH blends were immiscible. When EVOH content was ≤60 %, EVOH with the average diameter of about 3 μm was dispersed in PLA matrix uniformly.

Frailty knowledge level and its influencing factors among older adults in China.

Raising older adults' frailty knowledge level and encouraging them to actively engage in the prevention and treatment of frailty is essential to promote healthy aging. This cross-sectional study investigated frailty knowledge level and its influencing factors in community-dwelling older adults in China. A total of 734 older adults were included in the analysis.

The willingness and influencing factors to choose smart senior care among old adults in China.

Background: Population aging has become an escalating issue in China resulting in increasing healthcare demand. Smart senior care has the potential to help older adults live independently and relieve the pressure of healthcare including home-based care. This study aimed to explore Chinese older adults' preferred access models and service content of smart senior care and factors affecting their willingness to choose smart senior care.

Juncus effusus fiber-based cellulose cigarette filter with 3D hierarchically porous structure for removal of PAHs from mainstream smoke.

Polycyclic aromatic hydrocarbons (PAHs) from cigarettes are one of the main pollutants affecting public health. Herein, a cellulose cigarette filter with three-dimensional (3D) hierarchically porous structure was fabricated using a natural cellulose Juncus effusus (JE) fiber, whose pore size was well controlled by biocompatible polyvinylpyrrolidone (PVP) using a simple dip-dry method. The adsorption capacity and mechanism of the PVP-JE filter tips (PJF) against PAHs were investigated in detail.

Protective Bleaching of Camel Hair in a Neutral Ethanol⁻Water System.

As conventional bleaching under alkaline conditions is chemically damaging to protein fibers, a three-stage protective bleaching process in neutral ethanol⁻water mixtures was proposed for camel hair using mordanting with ferrous salts, oxidative bleaching with hydrogen peroxide, and reductive bleaching with sodium hydrosulfite. The aim of this work was to improve the whiteness degree of camel hair without substantial tenacity loss. In addition, the roles of ethanol during the bleaching treatment were also examined by characterizing the fibers using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction.

Structure and properties of carboxymethyl cotton fabric loaded by reduced graphene oxide.

Cotton fiber is a natural polysaccharide material with excellent properties, which is widely used in textile industry. However, the poor ultraviolet (UV) protection and electrical conductivity limit its application in other fields. In this study, reduced graphene oxide (rGO) loaded carboxymethyl cotton fabrics were prepared by layer-by-layer (LBL) self-assembly technique.

A "light-up" and "spectrum-shift" response of aptamer-functionalized silver nanoclusters for intracellular mRNA imaging.

We have designed a novel multifunctional DNA scaffold for the synthesis of fluorescent silver nanoclusters (Ag NCs) using a one-pot approach. The obtained DNA/Ag NCs presented a "light-up" and "spectrum-shift" response to target DNA in vitro and could further image the tumor-related mRNA in living cells.

Rapid synthesis and electrochemiluminescence behavior of CdTe nanoribbons.

A rapid chemical method has been developed for the synthesis of the CdTe nanoribbons with cubic crystalline phase. The method is based on the template-engaged synthesis in which the Te nanowires were used as template reagents. On the basis of a series of experiments and characterizations, the electrochemical property of CdTe nanoribbons was determined by the voltammetric technique.

Biomimetic ion nanochannels as a highly selective sequential sensor for zinc ions followed by phosphate anions.

A novel biomimetic ion-responsive multi-nanochannel system is constructed by covalently immobilizing a metal-chelating ligand, 2,2'-dipicolylamine (DPA), in polyporous nanochannels prepared in a polymeric membrane. The DPA-modified multi-nanochannels show specific recognition of zinc ions over other common metal ions, and the zinc-ion-chelated nanochannels can be used as secondary sensors for HPO4(2-) anions. The immobilized DPA molecules act as specific-receptor binding sites for zinc ions, which leads to the highly selective zinc-ion response through monitoring of ionic current signatures.

Artificial neural network modeling for deciding if extractions are necessary prior to orthodontic treatment.

Objective: To construct a decision-making expert system (ES) for the orthodontic treatment of patients between 11 and 15 years old to determine whether extraction is needed by using artificial neural networks (ANN). Specifically, we will uncover the factors that affect this decision-making process.

Methods: A total of 200 subjects were chosen; among them, 120 were accepted for extraction treatments, and 80 were chosen for nonextraction treatments.