DNA damage by OH radicals produced using intense, ultrashort, long wavelength laser pulses

AK Dharmadhikari, H Bharambe, JA Dharmadhikari… - Physical review …, 2014 - APS
We probe femtosecond laser induced damage to aqueous DNA, relying on strong-field
interaction with water wherein electrons and free radicals are generated in situ; these, in …

Laser-driven Marangoni flow and vortex formation in a liquid droplet

K Gupta, KM Kolwankar, B Gore, JA Dharmadhikari… - Physics of …, 2020 - pubs.aip.org
We present a systematic study of the laser-driven Marangoni flow and curvature induced
vortex formation in a copper sulfate pentahydrate solution, visualized by dispersed carbon …

A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils

Y Liu, C Li, M Zhao, J Shen, L Pan - RSC advances, 2023 - pubs.rsc.org
We have investigated a micro vapor membrane valve (MVMV) for closing the microfluidic
channels by laser irradiation on carbon nanocoils (CNCs) attached to the inner wall of the …

Optical trapping in an absorbing medium: from optical tweezing to thermal tweezing

P Kumari, JA Dharmadhikari, AK Dharmadhikari… - Optics …, 2012 - opg.optica.org
We report on optical trapping in a weakly absorbing medium, hemin, an iron-containing
porphyrin that is an important component of hemoglobin. By altering the hemin …

An approach of bubble generation and manipulation by using the photothermal effects of laser irradiation on light absorbing particles

BW Li, JW He, W Bai, HD Wang, F Ji… - Review of Scientific …, 2021 - pubs.aip.org
The photothermal effects have shown the possibilities for applications in optical
manipulation. In this paper, an approach is demonstrated to generate and manipulate a …

Growth of laser-induced microbubbles inside capillary tubes affected by gathered light-absorbing particles

JW He, HD Wang, BW Li, W Bai, D Chen, MC Zhong - Micromachines, 2022 - mdpi.com
Microbubbles have important applications in optofluidics. The generation and growth of
microbubbles is a complicated process in microfluidic channels. In this paper, we use a laser …

Mechanism of Microbubbles and Cavitation Effect on Bubble Breakage in a Venturi Bubble Generator

Q Li, X Guo, DZ Ming, M Lei, JL Liu, L Fang… - Journal of Applied Fluid …, 2023 - jafmonline.net
Venturi bubble generators have been extensively studied because of having a simple
structure and high foaming efficiency, while producing a uniform bubble size. The effect of a …

Micro-bubble generated by laser irradiation on an individual carbon nanocoil

Y Sun, L Pan, Y Liu, T Sun - Applied Surface Science, 2015 - Elsevier
We have investigated the micro-bubbles generated by laser induction on an individual
carbon nanocoil (CNC) immerged in deionized water. The photon energy of the incident …

Mechanistic insight on the sonolytic degradation of phenol at interface and bulk using additives

SB Doltade, VL Gole - Journal of Advanced Oxidation Technologies, 2017 - degruyter.com
Present work investigated the degradation of phenol based on theoretical knowledge of
bubble dynamic and experimental studies. Optimum parameters of theoretical knowledge …

Growth of micro-crystals in solution by in-situ heating via continuous wave infrared laser light and an absorber

S Pathak, JA Dharmadhikari, A Thamizhavel… - Journal of Crystal …, 2016 - Elsevier
We report on growth of micro-crystals such as sodium chloride (NaCl), copper sulphate
(CuSO 4), potassium di-hydrogen phosphate (KDP) and glycine (NH 2 CH 2 COOH) in …