Drug paraphernalia Drug paraphernalia "Drug paraphernalia" is a term, to denote any equipment, product or accessory that is modified for making, using, or concealing drugs, typically for recreational purposes. Drugs such as cocaine, heroin, marijuana, and methamphetamine are related to a wide range of paraphernalia. Paraphernalia generally falls into two categories: user-specific products and dealer-specific products. User-specific products include glass hashish pipes, crack cocaine pipes, smoking masks, hashish bongs, cocaine freebase kits, syringes, roach clips for holding the burning end of a marijuana joint. Some stores sell items for growing hydroponic marijuana, such as guidebooks, fertilizer, and fluorescent grow-lights. The term "paraphernalia"
Nanoparticles for drug delivery to the brain the drug-loaded nanoparticle to circulate throughout the body for prolonged periods of time. Further, the "stealth effect", caused in part by the hydrophilic and flexible properties of the PEG chains, facilitates an increase in localizing the drug at target sites in tissues and organs. A mechanism for liposome transport across the BBB is lipid-mediated free diffusion, a type of facilitated diffusion, or lipid-mediated endocytosis. There exist many lipoprotein receptors which bind lipoproteins to form complexes that in turn transport the liposome nano-delivery system across the BBB. Apolipoprotein E (apoE) is a protein that facilitates transport of lipids and cholesterol. ApoE