Working with a biased atomic force microscope(AFM)tip in the tapping mode under ambient atmosphere,attoliter(10^(-18) L)water droplet patterns have been generated on a patterned carbonaceous surface.This is essentiall...Working with a biased atomic force microscope(AFM)tip in the tapping mode under ambient atmosphere,attoliter(10^(-18) L)water droplet patterns have been generated on a patterned carbonaceous surface.This is essentially electrocondensation of water leading to charged droplets,as evidenced from electrostatic force microscopy measurements.The droplets are unusual in that they exhibit a highly corrugated surface and evaporate rather slowly,taking several tens of minutes.展开更多
In the field of cell studies,there is a burgeoning trend to further downscale the investigation from a single-cell level to a sub-single-cell level.Subcellular matter is the basic content in cells and correlates with ...In the field of cell studies,there is a burgeoning trend to further downscale the investigation from a single-cell level to a sub-single-cell level.Subcellular matter is the basic content in cells and correlates with cell heterogeneity.Sub-single cellular studies focus on the subcellular matter in single cells and aim to understand the details and heterogeneity of individual cells in terms of the subcellular matter or even at the single component/vesicle/molecule level.Hence,sub-single cellular studies can provide deeper insights into fundamental cell biology and the development of new diagnostic and therapeutic technologies and applications.Nonetheless,the contents of a single cell are not only ultra-small in volume but also extremely complex in composition,far exceeding the capabilities of most tools used in current cell studies.We believe that nanofluidics holds great potential in providing ideal tools for sub-single cellular studies,not only because of their capability to handle femtoliter/attoliter-scale samples,but also because of their possibility to manipulate and analyze subcellular matters at the single component/vesicle/molecule level in a high-throughput manner.In this review,we summarize the efforts in the field of nanofluidics for sub-single cellular studies,focusing on nascent progress and critical technologies that have the potential to overcome the technical bottlenecks.Some challenges and future opportunities to integrate with information sciences are also discussed.展开更多
基金The authors thank Professor C.N.R.Rao,Fellow of Royal Society(FRS)for his encouragement.Support from the Department of Science and Technology,Government of India is gratefully acknowledged.N.K.acknowledges Council of Scientific and Industrial Research(CSIR)for funding.N.K.acknowledges Ritu for reading the manuscript.The authors thank Veeco India Nano-technology Laboratory at Jawaharlal Nehru Centre for Advanced Scientific Research(JNCASR)for the AFM facility.A.S.acknowledges INDO-US Science&Technology Forum(IUSSTF)for funding.
文摘Working with a biased atomic force microscope(AFM)tip in the tapping mode under ambient atmosphere,attoliter(10^(-18) L)water droplet patterns have been generated on a patterned carbonaceous surface.This is essentially electrocondensation of water leading to charged droplets,as evidenced from electrostatic force microscopy measurements.The droplets are unusual in that they exhibit a highly corrugated surface and evaporate rather slowly,taking several tens of minutes.
基金the JST,PRESTO(No.JPMJPR18H5)JSPS KAKENHI(Nos.JP21H04640,JP20H00497,JP19KK0129,JP18H01848,JP16K13653,JP26706010,JP26630403 and JP21J14595)+1 种基金MEXT KAKENHI(Nos.JP21H05231,JP19H04678,JP17H05468 and JP26107714)the National Natural Science Foundation of China(NSFC,No.21628501)。
文摘In the field of cell studies,there is a burgeoning trend to further downscale the investigation from a single-cell level to a sub-single-cell level.Subcellular matter is the basic content in cells and correlates with cell heterogeneity.Sub-single cellular studies focus on the subcellular matter in single cells and aim to understand the details and heterogeneity of individual cells in terms of the subcellular matter or even at the single component/vesicle/molecule level.Hence,sub-single cellular studies can provide deeper insights into fundamental cell biology and the development of new diagnostic and therapeutic technologies and applications.Nonetheless,the contents of a single cell are not only ultra-small in volume but also extremely complex in composition,far exceeding the capabilities of most tools used in current cell studies.We believe that nanofluidics holds great potential in providing ideal tools for sub-single cellular studies,not only because of their capability to handle femtoliter/attoliter-scale samples,but also because of their possibility to manipulate and analyze subcellular matters at the single component/vesicle/molecule level in a high-throughput manner.In this review,we summarize the efforts in the field of nanofluidics for sub-single cellular studies,focusing on nascent progress and critical technologies that have the potential to overcome the technical bottlenecks.Some challenges and future opportunities to integrate with information sciences are also discussed.
