Inner ear delivery: Challenges and opportunities

B Szeto, H Chiang, C Valentini, M Yu… - Laryngoscope …, 2020 - Wiley Online Library
Objectives The treatment of inner ear disorders remains challenging due to anatomic
barriers intrinsic to the bony labyrinth. The purpose of this review is to highlight recent …

Inner ear drug delivery: recent advances, challenges, and perspective

J Hao, SK Li - European Journal of Pharmaceutical Sciences, 2019 - Elsevier
Effective and safe treatment of auditory and vestibular diseases has become increasingly
dependent on inner ear drug delivery systems. This review highlights recent advances in …

Novel 3D-printed hollow microneedles facilitate safe, reliable, and informative sampling of perilymph from guinea pigs

B Szeto, A Aksit, C Valentini, M Yu, EG Werth, S Goeta… - Hearing research, 2021 - Elsevier
Background Inner ear diagnostics is limited by the inability to atraumatically obtain samples
of inner ear fluid. The round window membrane (RWM) is an attractive portal for accessing …

Drug delivery device for the inner ear: ultra-sharp fully metallic microneedles

A Aksit, S Rastogi, ML Nadal, AM Parker… - Drug delivery and …, 2021 - Springer
Drug delivery into the inner ear is a significant challenge due to its inaccessibility as a fluid-
filled cavity within the temporal bone of the skull. The round window membrane (RWM) is the …

Polymeric Microneedles for Health Care Monitoring: An Emerging Trend

RL Pereira, KB Vinayakumar, S Sillankorva - ACS sensors, 2024 - ACS Publications
Bioanalyte collection by blood draw is a painful process, prone to needle phobia and
injuries. Microneedles can be engineered to penetrate the epidermal skin barrier and collect …

3D-printed microneedles create precise perforations in human round window membrane in situ

H Chiang, M Yu, A Aksit, W Wang… - Otology & …, 2020 - journals.lww.com
Background: An intact round window membrane is a barrier to delivery of therapeutic and
diagnostic agents into the inner ear. Microperforation of the guinea pig round window …

Anatomical and functional consequences of microneedle perforation of round window membrane

M Yu, DN Arteaga, A Aksit, H Chiang… - Otology & …, 2020 - journals.lww.com
Background: Reliable delivery of agents into the inner ear for therapeutic and diagnostic
purposes remains a challenge. Our novel approach employs microneedles to facilitate …

Intratympanic application of poloxamer 407 hydrogels results in sustained N-acetylcysteine delivery to the inner ear

JC Gausterer, N Saidov, N Ahmadi, C Zhu… - European Journal of …, 2020 - Elsevier
N-acetylcysteine is a thiol-containing antioxidant, which has shown otoprotective effects in in
vitro as well as in vivo models of cisplatin-induced hearing loss. Systemic administration of …

Impact of systemic versus intratympanic dexamethasone administration on the perilymph proteome

B Szeto, C Valentini, A Aksit, EG Werth… - Journal of proteome …, 2021 - ACS Publications
Glucocorticoids are the first-line treatment for sensorineural hearing loss, but little is known
about the mechanism of their protective effect or the impact of route of administration. The …

Inner ear diagnostics and drug delivery via microneedles

S Leong, A Aksit, SJ Feng, JW Kysar… - Journal of Clinical …, 2022 - mdpi.com
Objectives: Precision medicine for inner ear disorders has seen significant advances in
recent years. However, unreliable access to the inner ear has impeded diagnostics and …