Article
Chemistry, Physical
Yunlei Zhang, Shuanhong Ma, Bin Li, Bo Yu, Haeshin Lee, Meirong Cai, Stanislav N. Gorb, Feng Zhou, Weimin Liu
Summary: The study developed a novel multilayered self-peeling switchable dry/wet adhesive with thermal-responsive curving behavior and switchable adhesion properties, and explained the dynamic curvature-induced switchable peeling mechanism theoretically. By integrating nanoparticles, remote control over switchable adhesion can be achieved. This research provides a new route for developing intelligent adhesion systems and mobile devices/robots.
CHEMISTRY OF MATERIALS
(2021)
Article
Multidisciplinary Sciences
Yurun Guo, Liwen Zhang, Yan Wang, Jing Liang, Xiaolin Liu, Yonggang Jiang, Lei Jiang, Huawei Chen
Summary: Robust and reversible wet attachments are crucial for medical engineering and wearable electronics. The discovery of unique hierarchical micro-nano fibrous pillars on Chinese bush crickets shows a wet friction that is approximately 3.8 times higher than that of tree frog's bulk pillar. By introducing a nano-fibrous pillar array covered with thin films, the contact stress at the interface shifts from compressing to stretching, leading to the formation of more stable and larger nano-liquid bridges and a friction enhancement of about 1.9 times.
Article
Multidisciplinary Sciences
Kinga Skieresz-Szewczyk, Hanna Jackowiak, Marlena Ratajczak
Summary: The study used LM, SEM and TEM techniques to investigate the histogenesis of parakeratinized epithelium of the lingual prominence in domestic geese during the embryonic period. The results showed differences in the development of epithelial furrows on the medial and lateral areas of the prominence, providing insights into the structural changes of the tongue during embryonic development.
SCIENTIFIC REPORTS
(2021)
Article
Nanoscience & Nanotechnology
Lei Xie, Xin Cui, Jing Liu, Qiuyi Lu, Jun Huang, Xiaohui Mao, Diling Yang, Jinglin Tan, Hao Zhang, Hongbo Zeng
Summary: The mussel-inspired polydopamine (PDA) can be deposited on various substrates and possess versatile wet adhesion, but its interaction with slippery surfaces remains unclear. Liquid-infused poly(tetrafluoroethylene) (LI-PTFE) and solid slippery surfaces were found to effectively prevent PDA deposition, with LI-PTFE demonstrating excellent antifouling and self-cleaning properties even when interacting with PDA wet adhesives.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Mingfei Pan, Kim-Cuong T. Nguyen, Wenshuai Yang, Xiong Liu, Xing-Zhen Chen, Paul W. Major, Lawrence H. Le, Hongbo Zeng
Summary: In this study, a novel bioadhesive hydrogel was developed, which achieved instant and robust adhesion to wet tissues by assembling a hydrophobic surface layer. The hydrogel adhesive demonstrated excellent water resistance and low signal attenuation in ultrasound imaging.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Jun Kyu Park, Yue Zhang, Baoxing Xu, Seok Kim
Summary: The direct transfer of pre-patterned materials plays a crucial role in the development of high-performance functional systems. By utilizing a self-delamination-driven pattern transfer method, the authors successfully integrated a single crystalline silicon thin membrane into a multi-functional system.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Yue Wang, Zhengwei Li, Mohamed Elhebeary, Rene Hensel, Eduard Arzt, M. Taher A. Saif
Summary: This study uses a novel microcup to reveal the mechanisms of its attachment and detachment underwater. The cup utilizes elasticity-enhanced hydrodynamics to generate self-sealing and high suction, effectively turning water into glue. The study also identifies three mechanisms of cup breaking and develops a mathematical model to describe the interplay between attachment and detachment.
Article
Chemistry, Multidisciplinary
Mikyung Kim, Eunsung Kim, Hansol Doh, Hyerim Hwang
Summary: The water-pinning effect, which prevents water droplets from rolling off a surface, has potential applications in various fields. This study proposes a coating approach using silica nanoparticles and cellulose nanocrystals to fabricate artificial water-pinning surfaces and evaluates their water-pinning ability.
Article
Nanoscience & Nanotechnology
Mario Daka, Marcello Ferrara, Manuela Bevilacqua, Paolo Pengo, Piu Rajak, Regina Ciancio, Tiziano Montini, Lucia Pasquato, Paolo Fornasiero
Summary: In this study, a facile method for synthesizing porous and highly faceted platinum nanoparticles in the liquid phase is reported. The shape and dispersity of the particles can be controlled by adjusting the reaction conditions, and the as-prepared nanoparticles exhibit improved catalytic activity.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Haiyan Wang, Xin Yi, Tao Liu, Jing Liu, Qinan Wu, Yonghui Ding, Zhenzhen Liu, Qingwen Wang
Summary: In this study, an integrally formed Janus hydrogel was easily fabricated in one step by controlling the distribution of carboxyl groups on the two sides of the hydrogel. The hydrogel showed poor adhesion on the top surface but robust adhesion on the bottom surface to various wet tissues, even underwater. The difference in adhesive strength between the two surfaces was as high as 20 times. The hydrogel also exhibited excellent mechanical toughness and conductivity, making it suitable for strain sensing applications in real-time monitoring of the beating heart.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhicheng Xu, Xuejiao Liang, Wencan Ma, Xiaoming An, Haomin Wu, Qiuhong Zhang, Xudong Jia
Summary: An integrated adhesive hydrogel with asymmetric underwater adhesion capability is developed by applying an electrostatic field. This hydrogel can be used in wound healing and organ repair, effectively preventing postoperative tissue adhesion.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Fan Chen, Qiuna Zhuang, Yichun Ding, Chi Zhang, Xian Song, Zijian Chen, Yaokang Zhang, Quanjin Mei, Xin Zhao, Qiyao Huang, Zijian Zheng
Summary: A wet-adaptive electronic skin (WADE-skin) has been developed, which can stably adhere to wet skin and offers superb stretchability, permeability, and waterproof property. It can be used for electrocardiogram recording and human-machine interactions.
ADVANCED MATERIALS
(2023)
Review
Biochemistry & Molecular Biology
Alain Lefevre-Utile, Camille Braun, Marek Haftek, Francois Aubin
Summary: The epidermis is a living, multilayered barrier with five functional levels, including physical, chemical, microbial, neuronal, and immune levels, which work together to protect the host from external aggression and maintain its integrity.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Chohei Pang, Jae-Kang Kim, Yingdan Wu, Michael Yu, Hongyu Yu, Metin Sitti
Summary: This study presents an elastomeric microstructure that overcomes the trade-off between adhesive strength and trigger force. The optimal design exhibits strong adhesive strength and negligible detachment strength, even in wet conditions. Manipulation tasks of fragile and tiny parts as well as transfer across water and air interfaces are successfully demonstrated.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Sheng Zhang, Junheng Gao, Fu Tang, Jie Wang, Chuang Yao, Lidong Li
Summary: A seedless wet method for the synthesis of copper twinned nanostructures has been proposed in this study, which successfully synthesized large copper decahedrons and singly twinned copper right bipyramids. Different kinds of copper twinned nanostructures could be obtained by adjusting the amount of chloride ions and oleylamine.
Article
Ophthalmology
Rinky Agarwal, Seema Sen, Seema Kashyap, Tanuj Dada, Tapas Chandra Nag, Viney Gupta, Ramanjit Sihota
Summary: The purpose of this study is to correlate histopathological changes of trabecular meshwork (TM) with clinical features in primary congenital glaucoma (PCG). The findings suggest that fused trabecular beams are associated with higher baseline intraocular pressure (IOP), while thicker TM and lower trabecular endothelial cell (TEC) count are associated with lower IOP at final follow-up. Larger studies are required to validate these results.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Anatomy & Morphology
T. C. Nag, S. Chakraborti, D. Das
Summary: We report the ocular features of the tongue sole, Cynoglossus bilineatus (Lacepede, 1802), a marine, bottom-dwelling flatfish. The findings reveal the adaptations of its eyes to the dim-light environment and the structural changes during larval metamorphosis.
Article
Cell Biology
Tapas C. Nag
Summary: This study demonstrates neuronal alterations in PMD, including thinning of the inner retinal layers, patchy or inconspicuous OPL, and elongation of cone photoreceptor cells, among others.
Article
Medicine, Research & Experimental
Shikha Upreti, Seema Sen, Tapas Chandra Nag, Madhumita P. Ghosh
Summary: This study aims to investigate the combined effect of L-Dopa and IGF-1 on diabetic retinopathy, and found that it has a protective effect on the retina and attenuates angiogenesis by modulating VEGF and IGF-1 receptor levels. This is the first report on the synergistic effect of L-Dopa+IGF-1 in a rat model of diabetic retinopathy.
BIOMEDICINE & PHARMACOTHERAPY
(2022)
Article
Materials Science, Multidisciplinary
Shikha Chaudhary, Preeti Rai, Arti Joshi, Pooja Yadav, Kishore Sesham, Shailendra Kumar, Asit Ranjan Mridha, Upendra Baitha, Tapas Chandra Nag, Kapil Dev Soni, Anjan Trikha, Subhash Chandra Yadav
Summary: In this study, the cellular infectivity and ultrastructural changes caused by SARS-CoV-2 infection were examined in bronchoalveolar fluid (BALF) cells from different age groups and patients with comorbidities. The study found that younger patients had higher infection rates and better preservation of subcellular structures compared to older patients. Patients without comorbidities had higher viral load in BALF cells compared to those with comorbidities. Diabetic patients showed the most severe ultrastructural damage in BALF cells within the comorbid group.
MICROSCOPY AND MICROANALYSIS
(2022)
Article
Clinical Neurology
Binney Sharma, Avishek Roy, Trina Sengupta, Lal Chandra Vishwakarma, Anuraag Singh, Ritesh Netam, Tapas Chandra Nag, Nasreen Akhtar, Hruda Nanda Mallick
Summary: Sleep has an impact on both brain function and neuromuscular junction morphology and neurochemistry.
Article
Dentistry, Oral Surgery & Medicine
Bikash Chaurasia, Nitesh Tewari, Vijay Prakash Mathur, Tapas Chandra Nag, Subhash Chandra Yadav, Morankar Rahul, Deepika Mishra, Kalpana Bansal
Summary: This proof-of-concept study aimed to investigate the microscopic changes in resin penetration characteristics of tooth fragments after different rehydration protocols. The results showed that rehydration with distilled water resulted in the greatest depth and width of resin tags, followed by rehydration in a humidification chamber. Additionally, there were more resin tags in the samples rehydrated with distilled water and humidification compared to the samples with no rehydration.
DENTAL TRAUMATOLOGY
(2023)
Article
Pharmacology & Pharmacy
Reshal Suri, Tapas C. Nag, Nikita Mehra, Yub Raj Neupane, Sadat Shafi, Devyani Sharma, Kalicharan Sharma, Yasmin Sultana, Kanchan Kohli
Summary: This study found that chitosan functionalized PLGA nanoparticles can effectively and sustainedly deliver sirolimus to the retina for the treatment of AMD. Compared to plain sirolimus, these nanoparticles provide better protection against retinal degeneration and have no toxic side effects.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Indrani Mukherjee, Subhrajit Biswas, Sunil Singh, Joyeeta Talukdar, Mohammed S. S. Alqahtani, Mohamed Abbas, Tapas Chandra Nag, Asit Ranjan Mridha, Surabhi Gupta, Jai Bhagwan Sharma, Supriya Kumari, Ruby Dhar, Subhradip Karmakar
Summary: The overproduction of ROS has been linked to various human diseases. Monosodium glutamate (MSG), a food additive commonly used in Asian cuisine, has been associated with ROS generation. This study found that MSG exposure influenced trophoblast invasion and differentiation, two critical functions during placenta formation, through increased ROS production. The findings suggest that long-term exposure to MSG may have adverse health effects, compromising important trophoblast functions.
Article
Ophthalmology
Tapas C. Nag
Summary: This study investigated age-related changes in Muller glial cells in donor human retina and found that these cells undergo osmotic changes, gliosis, and lipid peroxidation with advanced aging. Photoreceptor cells also experience oxidative-nitrosative stress with aging. Muller glial cells respond to oxidative stress through different mechanisms, but their phagocytic potential decreases with aging.
EXPERIMENTAL EYE RESEARCH
(2023)
Meeting Abstract
Peripheral Vascular Disease
Khushboo Bisht, Dharam Vir Singh Arya, Vipin Kumar Verma, Zia Abdullah, Ruma Ray, Rajiv Narang, Tapas Chandra Nag, Jagriti Bhatia
JOURNAL OF HYPERTENSION
(2023)
Meeting Abstract
Clinical Neurology
S. C. Sarangi, D. Sharma, S. S. Pattnaik, A. Nambirajan, T. C. Nag, M. Tripathi
Meeting Abstract
Clinical Neurology
B. Sharma, A. Roy, L. C. Vishwakarma, R. Neetam, T. C. Nag, N. Akhtar, H. N. Mallick
