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Self-biased transparent photoreceptor with a memory feature
Priyanka Bhatnagar,PATEL MALKESHKUMAR PRAVINBHAI,김준동 한국진공학회 2021 한국진공학회 학술발표회초록집 Vol.2021 No.2
Artificial neurobiotics is an emerging field of research for the development of biomimetic electronic devices. We have proposed a transparent metal oxide based photovoltaic device which exhibits photoreceptive and synaptic features. The significant feature of the device is that it is a transparent solar cell which paves a way for the development of energy efficient see-through biosensors. The photovoltaic feature also ensures long term reliability without needing to replace the power system and can provide a route for sustainable applications of neuromorphic computing, including artificial eye.
Patel, Malkeshkumar,Pati, Ranjan,Marathey, Priyanka,Kim, Joondong,Mukhopadhyay, Indrajit,Ray, Abhijit The Electrochemical Society 2016 Journal of the Electrochemical Society Vol.163 No.14
<P>Tenorite CuO thin films have been synthesized via spray pyrolysis of aqueous copper(II) chloride solution followed by heat-treatment, exhibited a photocurrent density of 24 mA cm(-2) at 0.25 V vs. RHE under AM1.5G solar irradiation in alkaline electrolyte. This large photocurrent density has been attributed to a drift assisted transport of photo-generated electrons across the semiconductor/electrolyte interface in the annealed films. The tendency of photo-corrosion from the surface of CuO has been reduced substantially without any extra protective layer, simply by adding K3Fe(CN)(6) in the electrolyte, which acts as a sacrificial excess-electron scavenging agent. The fabricated electrode exhibited a positive onset potential at 0.25 V vs. RHE even after the electrolyte modification and a stable photocurrent density of more than 40% has been retained after 20 minutes of continuous illumination. The processed photocathode showed a solar to chemical conversion efficiency of 7.85% and 21.5% with and without using an electron scavenging agent, respectively. It holds the promise of using this photocathode in PEC energy conversion, photocatalysis and solar water splitting. (C) 2016 The Electrochemical Society. All rights reserved.</P>
Abhilash Vasanth,Shilpa M Patel,Ruchi Arora,Chetana D Parekh,Pariseema Dave,Bijal M Patel,Priyanka Vemanamandhi 대한부인종양학회 2024 Journal of Gynecologic Oncology Vol.35 No.2
Objective: To study clinical characters and outcomes in patients of malignant ovarian germcell tumor (MOGCT) undergoing surger y following neoadjuvant chemotherapy (NACT). Methods: Retrospective study of patients undergoing surger y following NACT for MOGCT atour institute. Platinum based chemotherapy was given in all patients in NACT. Results: Between March 2013 and Februar y 2023, 30 patients had surger y after NACT. Patient’s median age was 22 years (range, 12 to 35 years) and median follow up 42months(range, 6 to 132 months). Majority had endodermal sinus tumor (n=12), dysgerminoma (n=9)and mixed GCT (n=7). All had either International Federation of Gynecology and Obstetrics(FIGO) stage 3 (n=19) or FIGO stage 4 disease (n=11). Complete response to NACT seen in5 patients and 23 patients had partial response. Fertility sparing surger y in 18 patients andcomplete surger y in 12 patients. Suboptimal surger y was seen in 4 patients. Currently, 20of 30 patients are alive and disease free, 3 lost for follow up and 7 patients had progressionafter adjuvant therapy. Five patients had mortality—4 with progression and 1 with bleomycintoxicity. Fifteen of 17 eligible patients have resumed menstruation and one had successfulpregnancy. Prognostic factors noted in study are stage, optimal surger y and viable tumor inhistopathology. Dysgerminoma had better outcome than other histology. Conclusion: NACT may be a reasonable option in patients with extensive unresectable diseaseor in whom fertility sparing is not possible or in the poor general condition. Fertility sparingsurger y can be attempted post neoadjuvant chemotherapy without adversely affecting prognosis.