PMC

Endoscopic view – stages of endoscopic removal of third ventricle colloid cyst: A – colloid cyst in the interventricular foramen, B – colloid cyst capsule’s coagulation, C – colloid cyst capsule’s incision, D – colloid cyst content’s aspiration, E – colloid cyst capsule’s removal, F – remnants of the colloid cyst capsule, G – coagulation of the colloid cyst capsule’s remains, H – view after total removal of the colloid cyst capsule, I – view at the third ventricle after total removal of the colloid cyst

Diagnostic algorithm to separate ITPAs, colloid nodules and PTC. ITPAs demonstrate peak enhancement in the arterial phase (specificity =1). Thus, nodules with peak enhancement in the venous or delayed phases are colloid or PTC. For nodules with peak enhancement in the arterial phase, an arterial-to-venous HU washout percentage of ≥ 23.95% separates ITPAs from colloid and PTC. The remaining nodules are colloid or PTC and those measuring < 1 cm cannot be distinguished. When colloid nodules or PTC measure ≥ 1 cm if the HU in the arterial phase and < 84.1 they are PTC and if the HU in the arterial phase is >164.5 HU it is suggestive of colloid. Nodules with an arterial phase HU value ≥ 84.1 and ≤ 164.5 cannot be distinguished.

UV–Vis spectra of AgNPs synthesized using sodium citrate (Colloid SC), (Colloid SC*); tannic acid (Colloid TA), (Colloid TA*); and a mixture of sodium citrate and tannic acid (Colloid SC–TA), (Colloid SC–TA*) at room temperature (Colloid SC, TA, SC–TA) and heated to 100 °C (Colloid SC*, TA*, SC–TA*)

(a) Positive reactivity of colloid materials with PAS staining (H and E, ×10) (b) Positive reactivity of colloid materials with methylviolet staining (H and E, ×10) (c) Positive reactivity of colloid materials with crystal-violet staining (H and E, ×10) (d) Fragmented elastin fibers of nodular colloid presenting in elastin staining (H and E, ×10)

(a) Streamlines and velocity maps for the motion in the x = 0 symmetry plane for a colloid translating in the positive z direction with velocity U on the surface of a semi-infinite liquid in the laboratory frame for λ/a = 0.01 and (a) a hydrophobic (θ = 7π/8, d/a = 0.2), (b) a neutral (θ = π/2, d/a = 1) and (c) a hydrophilic θ = π/8, d/a = 1.8) colloid assuming the liquid to be water. Streamlines and velocity maps for the motion of the fluid underneath a colloid rotating counterclockwise around the x axis with velocity aΩ on the surface of a semi-infinite liquid in the laboratory frame for λ/a = 0.01 and (d) a hydrophobic rotating colloid (θ = 7π/8), (e) a neutrally wetting (θ = π/2 colloid and (f) a hydrophilic (θ = π/8) colloid.

Normalized drag and torque coefficients for colloid motion on the surface of a thin film atop a solid substrate: (a) drag coefficient () for a translating colloid, (b) coefficient for the torque generated by a translating colloid () or drag coefficient generated for a rotating colloid (), (c) coefficient of resistive torque () for a rotating colloid all as a function of film thickness and slip length equal to 0.01 and normalized by value atop a semi-infinte medium, and (d) Normalized coefficients of resistive torque (, scaled by value completely immersed in an infinite medium) as function of film thickness for a rotating colloid for two different slip lengths λ/a = 0.01 or 0.05 as a function of thickness. The contact angle is π/2.

(a) Abundant thin colloid on FNA (MGG, ×100) (b) Papillary fragments with thin colloid and cracking artifact in the background (MGG, ×100) (c) Abundant colloid in the background obscuring the cytomorphological features of the papillary fragments on FNA (Pap, ×100)

Effect of osmolarity of colloid formulation on sperm motility (mean ± SD) with time after colloid centrifugation (n = 15). SLC: single-layer centrifugation, DGC: gradient density centrifugation, n: normal osmolarity colloid (320 mOsm), h: high osmolarity colloid (345 mOsm), and Day 1: day of semen collection.

Colloid jamming process during colloid flow through BNP media. (a) Colloid jamming for E_c–p = E_c–p,3, E_c–c = E_c–c,2, d = 0.30, and ΔP = 15 ε/σ³. Colloids’ color coding follow the scheme used in . (b) Colloid volume fraction evolution in the source region. (c) Right piston position for different samples during the simulation time.

(a) Absorption spectra for the fresh colloid (red curve) synthesized by laser ablation of Fe in acetone at 600 mW and (b) the colloid stored for 3 weeks (black curve), respectively. Inset images in (a) are optical images of the fresh colloid (left) and the colloid stored for 3 weeks (middle), where the precipitation of the colloid (as indicated by white arrows in the right optical image) causes the downshift of the absorbance spectra. (b) Zeta potential curves of the fresh colloid and the colloid stored for 3 weeks.

Colloid osmotic pressure from wicks after implantation in arm vs. leg related to age. There was no significant difference in the pressures obtained in arm and leg.

Transport of a single colloid by rotation–rotation conversion. (A) Change of trajectories of the disclination line and colloid with time; (i) Disclination lines ① and ② at t = 0 s. The tracking position on line ① is labeled by a blue circle, and the colloid is labeled by a red circle; (ii) Line ① at t = 140 s; the overlaid blue and red curves are the measured trajectory of line ① and the colloid, respectively; (iii) Line ② picks up the colloid at t = 76 s; (iv) Colloid on line ② reaches the final position at t = 140 s; (B) Change of rotation distance of disclination line ① with time; inset is line ① at t = 90 s; (C) Comparison between time change [shaded pink region from part (B)] of distance of colloid on disclination line ② (black circle) and that of line ① (blue square); Inset is line ② carrying the colloid at t = 85 s; (D) The velocity difference between the colloid (black circle) and disclination line ① (blue square) in the time span of 80 s to 140 s; Inset is the image of disclination line ② changes to straight line at t = 100 s. The colloidal sphere used is 5 μm in diameter. (The scale bar is 50 μm.)

Colloid volume fraction effect on colloid transport in BNP media. (a–d) Breakthrough curves when colloids breakthrough 25–100% L of the BNP media. Different colors represent different colloid volume fraction, d = 0.01–0.30, while E_c–p = E_c–p,2, E_c–c = E_c–c,2, and ΔP = 23 ε/σ³. (e–g) Squared displacement of each colloid for d = 0.01, 0.10, and 0.30 as a function of residence time. Curves are colored by colloids’ initial positions along the x direction.

Illustration of the predictions of our simple analytical model for colloid deposition in case of zero reentrainment, in which case attachment only occurs in the 2^nd unit cell or thereafter. (a) Probability of finding a colloid, which was injected into the network at time t = 0, in the NSFD at the time indicated in the legend. (b) Probability that a colloid attaches to a grain surface at the time indicated in the legend. (c) Cumulative probability that a colloid has attached to a grain surface prior or at the time indicated in the legend. In the legends, t_nn and t_na denote the times for colloid transfer from the n state to the n and a states, respectively.

The linear correlation between the total volume of colloid and the number of follicles, Y = −453 + 15.961 × X; r = 0.879, P = 0.021 (A); the total volume of colloid and the number-weighed mean volume of colloid was not significantly correlated, Y = 6.49 × 10⁻⁵ − 1.88 × 10⁻⁷ × X, r = 0.0015, P = 0.978 (B); and the linear correlation between the total volume of colloid and the inner follicular surface area, Y = 48.16 + 69.5 × X, r = 0.99, P < 0.002 (C).

(A) Average z-position of the headgroups as a function of the in-plane distance from the center of the colloid for the reference colloid at the indicated membrane-colloid separations (Å). (B) Snapshots at the indicated colloid-membrane separation (Å). Red is the colloid and green and blue are the positively and negatively charged headgroups, respectively.