Abstract: The present invention relates to a method for obtaining covalently modified graphene. The invention also describes covalently modified graphene obtained by this method and use thereof as an anchoring surface for bioreceptors in biosensor devices. Lastly, the invention describes a biosensor device comprising covalently modified graphene obtainable according to the method of the invention.

Abstract: The present invention provides a tire rim detailing tool configured to removably adhere to an inner edge of a wheel to enclose a tire rim. In this way, the tire rim is protected from any cleaning supplies that may damage the tire rim during car detailing. The tire rim detailing tool includes a body portion that is preferably circular and includes a front side and a rear side. The rear side includes an absorbent pad that extends along an outer edge of the body portion. The absorbent pad is removably attached to an inner edge of a wheel via an adhesive to prevent any cleaning supplies from damaging the tire rim. The front side includes a handle that extends along a diameter of the body portion. Furthermore, the body portion is foldable along the diameter and a pair of chords that are equally spaced from and parallel to the diameter.