A kind of optical pH sensor was demonstrated that is based on a pH-sensitive fluorescence dye-doped (eosin) cellulose acetate (CA) thin-film modified microstructured polymer optical fiber (MPOF). It was obtained by directly inhaling an eosin-CA-acetic acid mixed solution into array holes in a MPOF and then removing the solvent (acetic acid). The sensing film showed different fluorescence intens...

The potentiometric response properties of ammonium-, carbonate-, and proton-selective electrodes prepared by incorporating appropriate neutral carriers within novel asymmetric cellulose acetate membranes are reported. The membranes are formed by first casting a thin layer of cellulose triacetate without carrier, hydrolyzing one side of this film with base, and then on the other side casting a s...

A novel method of manufacturing rigid and robust natural fiber preforms is presented here. This method is based on a papermaking process, whereby loose and short sisal fibers are dispersed into a water suspension containing bacterial cellulose. The fiber and nanocellulose suspension is then filtered (using vacuum or gravity) and the wet filter cake pressed to squeeze out any excess water, follo...

it is possible to alter the permeability of ethyl cellulose membrane with certain materials such as surfactants. in this study the effect of surfactant concentration and different hlb values on the release rate of atenolol from ethyl cellulose-coated tablets was evaluated. the results showed that when the concentration of surfactant increased, the rate of drug release also increased. the kineti...

ABSTRACT
 In 2020 the number of cases Dengue Hemorrhagic Fever in Indonesia until 49th week reached 95,893 and caused death around 661 people. This study aims to obtain bestformula buccal film by optimizing concentration HPMC K15M Na. CMC evaluation characterization ofpreparations with 3 variations ratios against formulas on Na polymer excipients. include F1 0.67% : 0.33% ; F2 0.65% 0.5% F...

It is possible to alter the permeability of ethyl cellulose membrane with certain materials such as surfactants. In this study the effect of surfactant concentration and different HLB values on the release rate of atenolol from ethyl cellulose-coated tablets was evaluated. The results showed that when the concentration of surfactant increased, the rate of drug release also increased. The kineti...

Abstract Polymer composites with nanocellulose as the reinforcing agent often lack good compatibility between two components. In this study, we have combined cellulose nanofibrils (CNFs) and nanocrystals (CNCs) in different ratios to create all-cellulose films consisting of entirely discrete objects that complement each other. Then further, by applying controlled dissolution concept were able d...

Based on the enamine reaction, cellulose-based (CAA-PEA) UV shielding film was prepared by solvent pouring.