The potential for large-scale applications of cellulose nanofibrils (CNFs) is limited by the high water content starting material, which leads to transportation costs and undesirable environmental impact. However, drying CNFs results in loss their nanoscopic dimensions leading deterioration unique inherent mechanical properties. Herein, thorough redispersion studies both fundamental applied nat...

We previously reported the preparation of a self-assembled chitin nanofiber (CNF) film via regeneration from an ion gel with an ionic liquid, followed by sonication and filtration. Based on the finding that CNFs were redispersed in a mixture of the film with ammonia aqueous solution (aq.), in this study, CNF-natural rubber (NR) composite sheets were fabricated by mixing redispersed CNF with NR ...

In this study, a catalyst was synthesized on carbon nanofibers [CNFs] with a herringbone-type morphology. The Pt/CNF catalyst exhibited low hydrophilicity, low surface area, high dispersion, and high graphitic behavior on physical analysis. Electrodes (5 cm2) were prepared by a spray method, and the durability of the Pt/CNF was evaluated by fuel starvation. The performance was compared with a c...

Single carbon nanofibers (CNFs) grown on the tips of scanning probe microscopy (SPM) cantilevers by Arþ irradiation attract much attention, because of their potential in the batch fabrication of CNF probes. Here, we first revealed their mechanical characteristics. An excellent flexibility of CNF probes was confirmed by hard-contact examination (force-curve measurement) in which the cantilever w...

Carbon nanofiber (CNF) is one of the stiffest materials produced commercially, having excellent mechanical, electrical, and thermal properties. The reinforcement of rubbery matrices by CNFs was studied in the case of ethylene vinyl acetate (EVA). The tensile strength was greatly (61%) increased, even for very low fiber content (i.e., 1.0 wt.%). The surface modification of the fiber by high ener...

Neurofibromatosis type 1 (NF1) is a multi-system genetic disorder involving the cutaneous, nervous, hematopoietic, ocular, and skeletal systems. Almost all individuals with NF1 (>95%) develop benign dermal tumors called cutaneous neurofibromas (cNFs) which frequently lead to significant physical social morbidity. cNFs exhibit high variability in number, subtype, growth rate, anatomic location. ...

The aim of this lecture is to show strong lower bounds against a AC0 circuits. In particular, we are going to show that small AC0 circuits cannot compute the parity function. This will follow by a depth reduction style argument, where we attempt to reduce the depth of the circuit level by level, until only a single layer remains. The key to this argument is a prominent tool in circuit complexit...

Molybdenum carbide (Mo2C) has been considered as a promising non-noble-metal hydrogen evolution reaction (HER) electrocatalyst for future clean energy devices. In this work, we report a facile, green, low-cost and scalable method for the synthesis of a Mo2C-based HER electrocatalyst consisting of ultrafine Mo2C nanoparticles embedded within bacterial cellulosederived 3D N-doped carbon nanofiber...

We provide some evidence that Unique -SAT is as hard to solve as general -SAT, where -SAT denotes the satisfiability problem for -CNFs and Unique SAT is the promise version where the given formula has or solutions. Namely, defining for each , a -time randomized algorithm for -SAT and, similarly, a -time randomized algorithm for Unique -SAT , we show that . As a corollary, we prove that, if Uniq...

Abstract The energy demand to produce cellulose nanofibrils, CNFs, is high and additionally the cost of starting material, pulp, substantial as purity dissolving pulp generally used. Pulps aimed for board paper are produced at higher yield they contain hemicelluloses and, in case unbleached lignin, would be a more economical material CNFs. It interest understand how presence hemicellulose ligni...