Lih, Eugene Kum, Chang Hun Park, Wooram Chun, So Young Cho, Youngjin Joung, Yoon Ki Park, Kwang-Sook Hong, Young Joon Ahn, Dong June Kim, Byung-Soo Kwon, Tae Gyun Jeong, Myung Ho Hubbell, Jeffrey A. Han, Dong Keun 2024-01-19T22:31:04Z 2024-01-19T22:31:04Z 2021-09-03 2018-07 1936-0851 https://pubs.kist.re.kr/handle/201004/121199 Biodegradable polymers have been extensively used in biomedical applications, ranging from regenerative medicine to medical devices. However, the acidic byproducts resulting from degradation can generate vigorous inflammatory reactions, often leading to clinical failure. We present an approach to prevent acid-induced inflammatory responses associated with biodegradable polymers, here poly(lactide-co-glycolide), by using oligo(lactide)-grafted magnesium hydroxide (Mg(OH)(2)) nanoparticles, which neutralize the acidic environment. In particular, we demonstrated that incorporating the modified Mg(OH)(2) nanoparticles within degradable coatings on drug-eluting arterial stents efficiently attenuates the inflammatory response and in-stent intimal thickening by more than 97 and 60%, respectively, in the porcine coronary artery, compared with that of drug-eluting stent control. We also observed that decreased inflammation allows better reconstruction of mouse renal glomeruli in a kidney tissue regeneration model. Such modified Mg(OH)(2) nanoparticles may be useful to extend the applicability and improve clinical success of biodegradable devices used in various biomedical fields. English AMER CHEMICAL SOC BIOMEDICAL APPLICATIONS DEGRADATION BIOCOMPATIBILITY POLY(L-LACTIDE) MICROSPHERES ACID) PLA BIOMATERIALS REDUCTION SCAFFOLDS Modified Magnesium Hydroxide Nanoparticles Inhibit the Inflammatory Response to Biodegradable Poly(lactide-co-glycolide) Implants Article 10.1021/acsnano.8b02365 1 ACS NANO, v.12, no.7, pp.6917 - 6925 ACS NANO 12 7 6917 6925 scie scopus 000440505000055 2-s2.0-85047998358 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article BIOMEDICAL APPLICATIONS DEGRADATION BIOCOMPATIBILITY POLY(L-LACTIDE) MICROSPHERES ACID) PLA BIOMATERIALS REDUCTION SCAFFOLDS biodegradable polymers inflammation magnesium hydroxide neutralization biomedical applications