Article
Chemistry, Multidisciplinary
Nicola Pellicciotta, Ojus Satish Bagal, Viridiana Carmona Sosa, Giacomo Frangipane, Gaszton Vizsnyiczai, Roberto Di Leonardo
Summary: Biohybrid microbots, integrating biological actuators and sensors into synthetic chassis, are developed to provide the building blocks of next-generation micro-robotics. A challenge is to develop self-assembled systems that exhibit consistent behavior and can be controlled independently for complex tasks. In this study, 3D printed microbots are shown to be steerable by unbalancing light intensity over different microbot parts, using light-driven bacteria as propellers. An optimal feedback loop is designed to project tailor-made light patterns onto each microbot, enabling independent guidance of multiple microbots through spatially distributed checkpoints.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Yan Gao, Brennan Sprinkle, Ela Springer, David W. M. Marr, Ning Wu
Summary: Magnetically controlled soft nano-robots based on Pickering emulsions have the potential to offer targeted drug delivery while avoiding the side effects of systemic delivery. These soft nano-robots can roll like deflated tires, providing a larger contact area with the wall and higher traction compared to rigid counterparts. They can also be reconfigured by changing the external magnetic field, affecting their translation speed and traction.
Article
Chemistry, Organic
Valentina Giraldi, Francesco Giunchino, Maria Edith Casacchia, Andrea Cantelli, Marco Lucarini, Daria Giacomini
Summary: This study reports a versatile synthesis strategy for N-sulfenylated azetidinones using TEMPO radical as the catalyst and disulfides. The reaction conditions were optimized to achieve high yields of N-alkylthio- or N-arylthio-azetidinones, demonstrating a good substrate scope.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Prasoon Kumar, Khalid Baig Mirza, Kaushik Choudhury, Magali Cucchiarini, Henning Madry, Pratyoosh Shukla
Summary: Tissue engineering involves assembling cells onto a 3D scaffold to form functional tissue with the guidance of scaffolding systems. Proper understanding of cellular communication in a reactor is crucial for appropriate positioning of cells in a 3D environment during tissue formation. Sensors and actuators integrated with cyber-physical systems can enhance cell communication and tissue morphogenesis.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Automation & Control Systems
Coy J. Zimmermann, Andrew J. Petruska, Keith B. Neeves, David W. M. Marr
Summary: This study demonstrates a method for microbots to roll on any surface using rotating magnetic fields and directional magnetic gradient forces. By using a single magnetic actuator, the implementation process is simplified, eliminating the need for complex setups, and enabling microbot targeting in complex 3D biomimetic microenvironments.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Environmental Sciences
Shi Ming Tan, Muhammad Hafiz Ismail, Bin Cao
Summary: Most studies on the diversity of magnetotactic bacteria have focused on samples from the Northern or Southern hemispheres, neglecting the tropical Asia region near the equator. This study used metagenomics to explore the diversity of MTB in the marine environment of Singapore and found novel taxa that cannot be classified at the species level. The relative abundance of MTB in Singapore's marine environment was lower compared to other regions, with the genera Magnetovibrio and Desulfamplus being dominant.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Applied
Maximiliano L. Agazzi, M. Fernanda Paletti Rovey, Eugenia Apuzzo, Santiago E. Herrera, Mariana B. Spesia, M. de las Mercedes Oliva, Omar Azzaroni
Summary: Complex coacervates based on oppositely charged biopolymers have the potential to encapsulate and protect bioactive agents in food science. The combination of lysozyme and multivalent tripolyphosphate anion resulted in the formation of coacervate-like structures, which exhibited the ability to encapsulate poorly water-soluble curcumin and improve its stability and antibacterial activity.
FOOD HYDROCOLLOIDS
(2023)
Article
Engineering, Environmental
Laibo Song, Shujie Zhang, Qimeng Wang, Wei Chen, Bo Liu, Yuan-Di Zhao
Summary: A new photothermal sterilization platform was developed using microbots to capture and gather bacteria, improving the efficiency of traditional photothermal sterilization. The microbots showed positive phototactic motion and bubble-induced gathering under focused laser, efficiently capturing and aggregating targeted bacteria. The gathered microbots generated higher temperature through photothermal effect, effectively killing bacteria.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Hao Fu, Renpeng Huang, Jianfang Li, Zhenhao Lin, Fuxiang Wei, Baofeng Lin
Summary: A composite film with antioxidant, antibacterial, and UV protection properties was developed to extend the shelf life of mushrooms. The film, prepared by incorporating cinnamaldehyde-tannic acid nano-emulsion into chitosan, showed multiple functional effects and significantly prolonged the preservation time of mushrooms.
FOOD HYDROCOLLOIDS
(2023)
Correction
Chemistry, Multidisciplinary
Zhangyong Si, Wenbin Zhong, Dicky Prananty, Jianghua Li, Chong Hui Koh, En-Tang Kang, Kevin Pethe, Mary B. Chan-Park
Summary: This article reviews the research progress of polymers as advanced antibacterial and antibiofilm agents for direct and combination therapies. By modulating the physicochemical properties and functional modifications of materials, polymers have demonstrated excellent antibacterial and antibiofilm activities and have shown broad prospects for application.
Review
Polymer Science
Xiumei Zhang, Miao Qin, Mengjie Xu, Fenyan Miao, Chaima Merzougui, Xiangyu Zhang, Yan Wei, Weiyi Chen, Di Huang
Summary: Antimicrobial hydrogels are interesting materials for wound healing, with two main preparation methods: physical combination and chemical combination. Light-assisted antimicrobial hydrogels are also commonly used. With advancements in technology, novel antimicrobial hydrogels are constantly being developed.
EUROPEAN POLYMER JOURNAL
(2021)
Review
Medicine, Research & Experimental
Petr Dytrych, Zdenek Kejik, Jan Hajduch, Robert Kaplanek, Katerina Vesela, Katerina Kucnirova, Marketa Skalickova, Anna Venhauerova, David Hoskovec, Pavel Martasek, Milan Jakubek
Summary: Treatment of metastatic cancer is a major challenge in anticancer therapy. Curcumin, a polyphenolic compound with unique biological and medicinal effects, has been shown to inhibit metastasis in high impact studies. It can modulate the immune system, target metastatic signaling pathways, and repress migration and invasiveness of cancer cells. This review discusses the potential of curcumin as an antimetastatic agent, potential mechanisms of its antimetastatic activity, and strategies to overcome its limitations.
BIOMEDICINE & PHARMACOTHERAPY
(2023)
Article
Materials Science, Multidisciplinary
Reshmi Chandran Rema, Amrita Salim, Rosebin Babu, Sanjay Pal, Raja Biswas, Binulal N. Sathy, Shantikumar Nair, Deepthy Menon
Summary: A three-layered nanofilter mask has been designed with high filtration efficiency and biocidal activity. The mask has good breathability and can be reused multiple times.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Organic
Sivanna Chithanna, Ding-Yah Yang
Summary: A series of important biological active heterocycles were synthesized through a specific reaction process, providing a novel synthetic pathway for drug research and synthesis.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shweta Chaubey, Sanjay Mehra, Anshul Yadav, Arvind Kumar, Vinod K. Shahi
Summary: In this study, antibacterial membranes with curcumin-enriched Cur-NaDBS nanoparticles were synthesized and characterized. The membranes showed improved resistance to fouling and exhibited antibacterial properties.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mitradip Bhattacharjee, Viswanath Pasumarthi, Joydip Chaudhuri, Amit Kumar Singh, Harshal Nemade, Dipankar Bandyopadhyay
Article
Materials Science, Biomaterials
Tamanna Bhuyan, Amit Kumar Singh, Deepanjalee Dutta, Aynur Unal, Siddhartha Sankar Ghosh, Dipankar Bandyopadhyay
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2017)
Article
Materials Science, Biomaterials
Tamanna Bhuyan, Amit Kumar Singh, Deepanjalee Dutta, Aynur Unal, Siddhartha Sankar Ghosh, Dipankar Bandyopadhyay
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2017)
Article
Chemistry, Physical
Tamanna Bhuyan, Mitradip Bhattacharjee, Amit Kumar Singh, Siddhartha Sankar Ghosh, Dipankar Bandyopadhyay
Article
Chemistry, Physical
Amit Kumar Singh, Saptak Rarotra, Viswanath Pasumarthi, Tapas Kumar Mandal, Dipankar Bandyopadhyay
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Nanoscience & Nanotechnology
Tamanna Bhuyan, Anitha T. Simon, Surjendu Maity, Amit Kumar Singh, Siddhartha Sankar Ghosh, Dipankar Bandyopadhyay
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Mechanics
Satarupa Dutta, Amit Kumar Singh, Partho Sarathi Gooh Pattader, Dipankar Bandyopadhyay
Summary: The oscillatory motions of charged particles in a liquid medium and the aggregation process in multi-particle systems are influenced by the properties of the surrounding fluid. Different sized particles exhibit elastic or inelastic collisions, with equal-sized particles showing synchronized motions and unequal-sized particles showing non-uniform motions. Additionally, charge reversal and the presence of counter-rotating vortices surrounding charged particles have been observed in multi-particle systems.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Nanoscience & Nanotechnology
Abhijna Das, Ravi Bolleddu, Amit Kumar Singh, Dipankar Bandyopadhyay
Summary: The study revealed that the physicochemical heterogeneity created by the AuNPs on the PDMS surface could guide the hole-formation and affect the spacing and periodicity of the droplets formed, with the size and spacing of the holes and droplets being tunable by varying the nanoparticle loading. Compared to dewetting on homogeneous PDMS surfaces, the AuNP guided patterns showed ten-fold miniaturization, resulting in high-density random patterns on the PDMS substrate.
Article
Multidisciplinary Sciences
Saptak Rarotra, Amit Kumar Singh, Tapas Kumar Mandal, Dipankar Bandyopadhyay
Summary: We present a solar cell-integrated membraneless microfluidic reactor for continuous synthesis of organic products through co-electrolysis of seawater and carbon dioxide. The microreactor achieved high-intensity electrical fields through the coupling of solar cell panels with electrodes, facilitating the electrolysis of CO2 gas and seawater. Various industrially important organic compounds were successfully synthesized and identified downstream. The use of greenhouse CO2 gas, seawater as electrolyte, and solar energy as an inexpensive electric source makes this microreactor a cost-effective and sustainable alternative for CO2 sequestration and organic compound synthesis.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Amit Kumar Singh, Tarini Basireddy, Jeffrey L. Moran
Summary: Water pollutants, such as oil spills, industrial dyes, and microplastics, pose threats to public health and aquatic ecosystems. Traditional water purification methods face challenges in removing these contaminants. This study presents a facile method for synthesizing magnetic microrobots derived from spent coffee ground to remove oil, organic dyes, and microplastic pollution from contaminated seawater. The CoffeeBots hold potential as sustainable, recyclable, and low-cost remediation agents for water treatment.
Article
Nanoscience & Nanotechnology
Amit Kumar Singh, Tamanna Bhuyan, Surjendu Maity, Tapas Kumar Mandal, Dipankar Bandyopadhyay
ACS APPLIED NANO MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Tamanna Bhuyan, Deepanjalee Dutta, Mitradip Bhattacharjee, Amit Kumar Singh, Siddhartha Sankar Ghosh, Dipankar Bandyopadhyay
ACS APPLIED BIO MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Nayan Mani Das, Amit Kumar Singh, Debdatta Ghosh, Dipankar Bandyopadhyay
NANOSCALE ADVANCES
(2019)
Proceedings Paper
Computer Science, Theory & Methods
Mitradip Bhattacharjee, Viswanath Pasumarthi, Joydip Chaudhuri, Amit Kumar Singh, Harshal Nemade, Dipankar Bandyopadhyay
PROCEEDINGS OF THE 2016 IEEE STUDENTS' TECHNOLOGY SYMPOSIUM (TECHSYM)
(2016)