Serge Grabtchak

14 Questions 200 Answers 0 Followers

Questions related from Serge Grabtchak

What is the highest reported number of Au nanoparticles uptaken by a single cancer cell using an active delivery mechanism?

I expect it to be in vitro most likely, while in vivo would be of highest interest. Any cell line is OK. Any shapes are fine including spheres, nanoshells, rods, nanocages etc albeit a preference...

04 November 2014 3,287 5 View

Can somebody recommend optically transparent NIR urological catheters?

Dear colleagues, I'd need to collect NIR light trans-urethrally with an optical fiber. Does anybody know if such optically transparent (~700 nm -900 nm) catheters exist? Can you recommend the...

23 October 2014 2,762 2 View

Can one apply the Beer-Lambert law to localized inclusions embedded in turbid media?

The classical Beer-Lambert law (BLL) can be applied for extraction of optical properties of a sample (mu_a or mu_extinction in a more general case) under known and controlled illumination &...

13 October 2014 4,280 16 View

How does a sarcomere size (length and diameter) change with different thermal coagulation methods?

I'm looking for any comparative studies where a thickness and length of a sarcomere were monitored when different thermal processing techniques like water bath, dry heat, microwave, ohmic, focused...

12 October 2014 9,782 10 View

How can different heating protocols affect morphology, biochemical and optical properties of porcine muscles?

We've performed thermal coagulation of bulk (~4x4x4 cm) porcine muscle, LD (loin) tissues using two different heating protocols. In the first one, the sample was submerged into a jar with boiling...

27 September 2014 1,615 6 View

Where might I find references on the optical properties of thermally coagulated muscle tissues?

I couldn't find much (or anything) on reports of spectrally resolved optical properties (absorption and scattering) of thermally coagulated muscle tissue. So, please share your knowledge on the...

20 May 2014 2,324 4 View

Does anyone want to collaborate on optical studies of prostate cancer and the use of gold nanoparticles as contrast agents for detection of PC?

I’d like to set up collaboration with those who have an access to human and/or canine prostates with cancer and might be interested in 1) exploring interstitial optical studies of prostates with...

02 May 2014 5,638 8 View

Can somebody suggest a source of tabulated spectral data of absorption coefficients for myoglobin and oxy-myoglobin?

22 February 2014 1,754 5 View

What muscles are in porcine tenderloin and boneless loin center cuts?

see above

20 February 2014 4,308 2 View

What gold nanoparticle shape would give the largest absorption cross-section?

It appears from published literature, that an individual Au nanocage produces about an order of magnitude higher absorption cross-section than an individual Au nanorod (considering 750-850 nm...

19 February 2014 9,439 8 View

How to relate a density of absorbing Au nanoparticles to a local photon density in a turbid medium if extinction (or absorption) values are known?

I'm wondering if somebody tried to extract a local photon density in a turbid medium from local extinction measurements with gold nanoparticles present in the medium. Let's say that there's a...

26 December 2013 9,268 21 View

What is a statistical range of total hemoglobin (oxy- and deoxy-) and water concentration for canine prostate? How does it compare with the human?

If somebody can provide numbers for in vitro and in vivo, it would be great!

14 September 2013 293 3 View

I'm looking for data on spectrally-resolved optical properties (absorption and scatering coefficients etc) of porcine muscles.

I'd appreciate any references on the subject. Range: 650-900 nm

04 September 2013 5,663 7 View

Can somebody suggest a way of cleaning thin (1-2 mm diameter), long (~5 cm) capillaries (sealed on one end) from gold nanoparticle solutions?

Gold spheres, rods and cages; unconjugated.

31 January 2013 9,824 1 View