Preparation and Characterization of Hydroxypropyl Methyl Cellulose Films Containing Mica Particles and Assessment of Their Antibacterial Activity.

1 The use of natural materials like cellulose in pharmaceutical, food packaging, and biological applications has shown an increasing trend. 2 Water-soluble cellulose ether film coatings are commonly utilized due to their superior esthetics, ability to mask color and unpleasant taste, and because they serve as a protective coating for tablets. 3 , 4 For applications in biomedical fields, hydroxypropyl methylcellulose (HPMC) has emerged as one of the most promising polymers for the preparation of films.

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