Force degradation study on aligner plates immersed in various solutions.

Background/purpose: The strength of aligners themselves has a high decay rate and is susceptible to accelerated degradation in the environment. The purpose of this study was to compare three types of invisible aligner films after being immersed in coffee, tea, cola, and red wine for seven days and to evaluate the changes in their strengths.

Materials And Methods: Three types of invisible aligner plates with a thickness of 0.

An in vitro evaluation of aligner force decay in artificial saliva.

Background/purpose: The present study aimed to compare the force decay of invisible aligners for maxillary anterior teeth with 0.1 mm (D), 0.2 mm (D), and 0.

Immobilization of sulfur in microgels for lithium-sulfur battery.

Immobilization of sulfur in microgels is achieved via free radical polymerization of commercial poly(ethylene glycol) dimethacrylate in the solution of sulfur-terminated poly(3-oligo(ethylene oxide)4-thiophene), a copolymer prepared by the inverse vulcanization of S8 with allyl-terminated poly(3-oligo(ethylene oxide)4-thiophene). This microgelation leads to enhanced Li-S battery performance over the sulfur-terminated polymer.

One-pot synthesis of responsive catalytic Au@PVP hybrid nanogels.

Responsive catalytic hybrid nanogels with Au nanoparticle cores and a polyvinylpyrrolidone (PVP) based gel shell are prepared through a novel one-pot approach. The embedded Au nanoparticles demonstrate both a pH-modulated catalytic activity and anti-aggregation properties upon recycling.

A fluorescent responsive hybrid nanogel for closed-loop control of glucose.

Background: The concept of closed-loop control of glucose, in which continuous glucose sensing is coupled to a fully automated insulin delivery device, without human input, has been an attractive idea for diabetes management. This study presents a new class of hybrid nanogels that can integrate glucose sensing and glucose-responsive insulin release into a single nano-object.

Methods: Zinc oxide@poly[N-isopropylacrylamide (NIPAM)-acrylamide (AAm)- 2-aminomethyl-5-fluorophenylboronic acid (FPBA)] hybrid nanogels were synthesized and investigated for size, morphology, volume phase transition, photoluminescence properties, and in vitro insulin release under different glucose concentrations.

A nanogel of on-site tunable pH-response for efficient anticancer drug delivery.

A smart, soft and small nanoparticulate drug carrier that can efficiently transport therapeutics into tumor cells to control the intracellular drug concentration will enable major advancements in cancer therapy. To facilitate a remote modulation of the intracellular pH-regulated drug release, we have designed a new class of pH-responsive chitosan-based nanogels (<200 nm) by the physical interpenetration of chitosan chains into a nonlinear poly(ethylene glycol) (nonlinear PEG) chain network. The resultant PEG-chitosan nanogels not only respond to the changes in environmental pH over the physiologically important range of 5.